Lifting device

Abstract

According to one aspect of the present invention, there is provided a lifting device for moving a part of a manufacturing apparatus of a display device, the lifting device comprising: a main support part; the first auxiliary supporting part is arranged on the main supporting part; the second auxiliary supporting part is arranged below the main supporting part; and a plurality of shafts penetrating the main support part, the first auxiliary support part, and the second auxiliary support part at the same time.

Description

Technical Field

[0001] The present invention relates to a lifting device, and in particular, to a lifting device for lifting a part or component of a manufacturing device for a display device. Background Art

[0002] The manufacturing device of the display device may include various components therein. The manufacturing process of the display device may include a deposition process. A portion of the deposition material used in the deposition process may be deposited on the manufacturing device of the display device and / or its components. Once such deposition material begins to be deposited on the manufacturing device of the display device and / or its components, the deposition quality may be reduced, or may cause malfunction of the manufacturing device. Therefore, it is necessary to regularly replace various components of the manufacturing device of the display device. Summary of the invention

[0003] Technical issues to be solved

[0004] Replacing a component of a manufacturing device for a display device may include a process of removing the component to be replaced by lifting and moving it and installing a new component in the manufacturing device for the display device by lifting and moving it. With the diversification of display devices and manufacturing devices for display devices, the number and types of components of the manufacturing device for display devices may also increase. When replacing a component of the manufacturing device for a display device, various components may be lifted and moved at the same time. Therefore, the weight of the lifting object may increase. Due to the load of the lifting object and the load of the lifting device itself, a bending moment may be generated in the lifting device, and this may cause bending deformation of the lifting device.

[0005] Workaround

[0006] According to one aspect of the present invention, there is provided a lifting device for moving a part of a manufacturing device for a display device, the lifting device comprising: a main supporting part; a first auxiliary supporting part, arranged on the main supporting part; a second auxiliary supporting part, arranged below the main supporting part; and a plurality of axes, simultaneously passing through the main supporting part, the first auxiliary supporting part and the second auxiliary supporting part.

[0007] In an embodiment, the first auxiliary supporting portion may be spaced apart from the main supporting portion, and the second auxiliary supporting portion may be spaced apart from the main supporting portion.

[0008] In one embodiment, a spacing distance between the first auxiliary supporting portion and the main supporting portion and a spacing distance between the second auxiliary supporting portion and the main supporting portion may be the same as each other.

[0009] In one embodiment, at least a portion of the plurality of shafts may be arranged in a row spaced apart from each other along a direction of one side of the main support portion.

[0010] In one embodiment, the plurality of axes may be arranged in a zigzag configuration when viewed on a plane.

[0011] In one embodiment, the first auxiliary supporting portion may be provided in plurality, and the plurality of first auxiliary supporting portions may include a 1-1 auxiliary supporting portion overlapping a first long side of the main supporting portion and a 1-2 auxiliary supporting portion overlapping a second long side different from the first long side.

[0012] In one embodiment, a plurality of the second auxiliary supporting portions may be provided, and the plurality of second auxiliary supporting portions may include a 2-1 auxiliary supporting portion overlapping the 1-1 auxiliary supporting portion and a 2-2 auxiliary supporting portion overlapping the 1-2 auxiliary supporting portion.

[0013] In one embodiment, a plurality of the first auxiliary supporting portions may be provided, and the plurality of first auxiliary supporting portions may be arranged on the main supporting portion along a thickness direction of the main supporting portion so as to be spaced apart from each other.

[0014] In one embodiment, the lifting device may further include: a plurality of second auxiliary supporting parts, which are arranged spaced apart from each other along the thickness direction of the main supporting part below the main supporting part, and the distance between the plurality of first auxiliary supporting parts may be the same as the distance between the plurality of second auxiliary supporting parts.

[0015] In one embodiment, a plurality of the second auxiliary supporting parts may be provided, and the plurality of second auxiliary supporting parts may be arranged below the main supporting part along the thickness direction of the main supporting part to be spaced apart from each other.

[0016] In one embodiment, the lifting device may further include: a fixing portion fixing the main supporting portion, the first auxiliary supporting portion, and the second auxiliary supporting portion to the plurality of shafts.

[0017] In one embodiment, the lifting device may further include: a connecting portion fixed to the main supporting portion and configured to be connected to a part of a manufacturing device of the display device.

[0018] In one embodiment, the sum of the weight of a portion of the multiple shafts protruding above the main support portion and the weight of the first auxiliary support portion may be the same as the sum of the weight of another portion of the multiple shafts protruding below the main support portion and the weight of the second auxiliary support portion.

[0019] According to another aspect of the present invention, a lifting device for moving a part of a manufacturing device for a display device is provided, the lifting device comprising: a main supporting part; a first auxiliary supporting part, arranged on the main supporting part; and a second auxiliary supporting part, arranged below the main supporting part, wherein the first auxiliary supporting part and the second auxiliary supporting part are arranged symmetrically to each other with respect to the main supporting part.

[0020] In one embodiment, the first auxiliary supporting portion and the second auxiliary supporting portion may be in direct contact with the main supporting portion, respectively.

[0021] In one embodiment, in a plane, an area of ​​the first auxiliary supporting portion and an area of ​​the second auxiliary supporting portion may be smaller than an area of ​​the main supporting portion.

[0022] In one embodiment, the first auxiliary supporting portion and the second auxiliary supporting portion may overlap each other on a plane.

[0023] In one embodiment, the mass of the first auxiliary supporting portion and the mass of the second auxiliary supporting portion may be the same.

[0024] In one embodiment, a plurality of first auxiliary supports may be provided, and one of the plurality of first auxiliary supports may be arranged at a first end of the main support, and another of the plurality of first auxiliary supports may be arranged at a second end opposite to the first end.

[0025] In one embodiment, a plurality of first auxiliary supporting portions may be provided, and the plurality of first auxiliary supporting portions may be arranged on the main supporting portion along a thickness direction of the main supporting portion.

[0026] Beneficial Effects

[0027] The lifting device according to the embodiment of the present invention implemented as described above is characterized in that auxiliary supporting parts are formed at the upper and lower parts of the main supporting part that bears the load. Therefore, when a bending moment occurs, bending deformation can be generated in the upper and lower auxiliary supporting parts, and the main supporting part can become a neutral surface where no deformation occurs. Therefore, a lifting device that does not cause bending deformation even under a large load and can stably lift an object can be provided. Of course, the present invention is not limited to these features. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a perspective view of a lifting device according to a first embodiment of the present invention.

[0029] Figure 2 is a plan view of a lifting device according to a first embodiment of the present invention.

[0030] Figure 3 is a cross-sectional view of a portion of a lifting device according to a first embodiment of the present invention.

[0031] Figure 4 is a perspective view of a lifting device according to a second embodiment of the present invention.

[0032] Figure 5 is a plan view of a lifting device according to a second embodiment of the present invention.

[0033] Figure 6 is a cross-sectional view of a portion of a lifting device according to a second embodiment of the present invention.

[0034] Figure 7 is a perspective view of a lifting device according to a third embodiment of the present invention.

[0035] Figure 8 is a plan view of a lifting device according to a third embodiment of the present invention.

[0036] Fig. 9 is a cross-sectional view of a portion of a lifting device according to a third embodiment of the present invention.

[0037] Fig.10 is a perspective view of a lifting device according to a fourth embodiment of the present invention.

[0038] Fig.11 is a plan view of a lifting device according to a fourth embodiment of the present invention.

[0039] Fig.12 is a cross-sectional view of a portion of a lifting device according to a fourth embodiment of the present invention.

[0040] Fig.13 is a perspective view of a lifting device according to a fifth embodiment of the present invention.

[0041] Fig.14 is a plan view of a lifting device according to a fifth embodiment of the present invention.

[0042] Fig.15 is a cross-sectional view of a portion of a lifting device according to a fifth embodiment of the present invention.

[0043] Fig.16 FIG. 1 is a side view showing a lifting device according to an embodiment of the present invention together with a load.

[0044] Figures 17a to 17c 1 is a perspective view showing the states in steps of a lifting process using a lifting device according to an embodiment of the present invention.

[0045] Fig.18The present invention is a plan view of a display device manufactured by using a display device manufacturing device, wherein components of the display device manufacturing device can be replaced by a lifting device according to an embodiment of the present invention.

[0046] Fig.19 is a cross-sectional view of a display device manufactured by using a display device manufacturing device, wherein components of the display device manufacturing device can be replaced by a lifting device according to an embodiment of the present invention.

[0047] Description of Reference Numerals

[0048] 1: Lifting device

[0049] 10: Supporting part

[0050] 11: Main support

[0051] CL: Center Line

[0052] 13: First auxiliary support part

[0053] 13-1: 1st-1 auxiliary support part

[0054] 13-2: 1st-2nd auxiliary support part

[0055] 13-3: 1st-3rd auxiliary support part

[0056] 13-4: 1st-4th auxiliary support part

[0057] 15: Second auxiliary support part

[0058] 15-1: 2nd-1 auxiliary support part

[0059] 15-2: No. 2-2 auxiliary support part

[0060] 15-3: 2nd-3rd auxiliary support part

[0061] 15-4: 2nd-4th auxiliary support part

[0062] 17: Vertical support

[0063] 17-1: First axis row

[0064] 17-2: Second axis

[0065] 17-3: Third axis

[0066] 17-4: Fourth axis series

[0067] 19: Fixed part

[0068] 20: First connection part

[0069] 30: Second connection part

[0070] 2: Lifting object

[0071] 3: Lifting arm DETAILED DESCRIPTION

[0072] The present invention can be variously transformed and can have various embodiments, and specific embodiments will be illustrated in the drawings and described in detail. The effects and features of the present invention and methods for achieving the effects and features will be described in detail with reference to the following and the attached drawings. Figure 1 However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various forms.

[0073] In the following embodiments, the terms “first”, “second”, etc. are used for the purpose of distinguishing one constituent element from another constituent element and are not used in a limiting sense.

[0074] In the following embodiments, unless clearly indicated otherwise in the context, an expression in the singular includes an expression in the plural.

[0075] In the following embodiments, terms such as “including” or “having” mean that the features or constituent elements described in the specification are present, and do not exclude the possibility of adding one or more other features or constituent elements in advance.

[0076] In the following embodiments, when a portion of a film, a region, a constituent element, etc. is referred to as being on or over another portion, it includes not only the case of being directly on the other portion but also the case of having other films, regions, constituent elements, etc. interposed therebetween.

[0077] In the drawings, the sizes of the components may be exaggerated or reduced for the convenience of explanation. For example, the sizes and thicknesses of the components shown in the drawings are arbitrarily shown for the convenience of explanation, and therefore the present invention is not necessarily limited to those shown in the drawings.

[0078] When a certain embodiment can be implemented differently, a specific process sequence can also be performed in a sequence different from the described sequence. For example, two processes described successively can be performed substantially simultaneously, or in a sequence opposite to the described sequence.

[0079] In the present specification, "A and / or B" means A, B, or A and B. In addition, "at least one of A and B" means A, B, or A and B.

[0080] In the following embodiments, when referring to the "connection" of films, regions, constituents, etc., it may include the case where the film, region, constituent is directly connected to another film, region, constituent and / or the case where the film, region, constituent is indirectly connected to another film, region, constituent with other films, regions, constituents in between.

[0081] The first direction, the second direction, and the third direction are not limited to the three axes in the orthogonal coordinate system, and can be interpreted as a broad meaning including them. For example, the first direction, the second direction, and the third direction can be orthogonal to each other, but can also refer to different directions that are not orthogonal to each other.

[0082] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. When describing with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and their repeated description will be omitted.

[0083] Figure 1 is a perspective view of a lifting device according to a first embodiment of the present invention.

[0084] Reference Figure 1 The lifting device 1 may include a supporting portion 10 , a first connecting portion 20 and a second connecting portion 30 .

[0085] The support 10 may occupy most of the lifting device 1 and provide a base capable of bearing load when the lifting device 1 is used to lift an object. The support 10 may include a main support 11, a first auxiliary support 13, a second auxiliary support 15 and a vertical support 17.

[0086] The main support portion 11 may include a plate extending in one direction. In one embodiment, the main support portion 11 may include a long side extending in a first direction DR1 and a short side extending in a second direction DR2. In one embodiment, the first direction DR1 and the second direction DR2 may be perpendicular to each other. In one embodiment, the main support portion 11 may be a plate having a substantially rectangular shape on a plane. In one embodiment, the main support portion 11 may include right-angled corners or rounded corners.

[0087] The first auxiliary support portion 13 may be arranged on the main support portion 11. In one embodiment, the first auxiliary support portion 13 may be arranged on a surface of the main support portion 11 facing the third direction DR3. In one embodiment, the first auxiliary support portion 13 may include a long side extending along the first direction DR1 and a short side extending along the second direction DR2. In one embodiment, the first auxiliary support portion 13 may include a plurality of plates. In one embodiment, the first auxiliary support portion 13 may include a plate overlapping with a side edge of the main support portion 11 in the second direction DR2 and a plate overlapping with a side edge of the main support portion 11 in the opposite direction of the second direction DR2. In one embodiment, the first auxiliary support portion 13 may be spaced apart from the main support portion 11.

[0088] The second auxiliary support portion 15 may be arranged below the main support portion 11. In one embodiment, the second auxiliary support portion 15 may be arranged on a surface of the main support portion 11 facing in the opposite direction of the third direction DR3. In one embodiment, the second auxiliary support portion 15 may include a long side extending in the first direction DR1 and a short side extending in the second direction DR2. In one embodiment, the second auxiliary support portion 15 may include a plurality of plates. In one embodiment, the second auxiliary support portion 15 may include a plate overlapping with a side edge of the main support portion 11 in the second direction DR2 and a plate overlapping with a side edge of the main support portion 11 in the opposite direction of the second direction DR2. In one embodiment, the second auxiliary support portion 15 may be spaced apart from the main support portion 11.

[0089] In one embodiment, the second auxiliary support portion 15 may have the same configuration as the first auxiliary support portion 13. For example, the mass and / or volume of the first auxiliary support portion 13 and the second auxiliary support portion 15 and / or the distance spaced from the main support portion 11 may be the same. In one embodiment, the first auxiliary support portion 13 and the second auxiliary support portion 15 may completely overlap. In one embodiment, the first auxiliary support portion 13 and the second auxiliary support portion 15 may differ only in the arrangement position based on the main support portion 11, and have no other differences.

[0090] The vertical support portion 17 may extend along the third direction DR3. In one embodiment, the vertical support portion 17 may pass through the main support portion 11, the first auxiliary support portion 13, and the second auxiliary support portion 15. In one embodiment, a portion of the vertical support portion 17 may protrude above the upper surface of the first auxiliary support portion 13. In one embodiment, a portion of the vertical support portion 17 may protrude below the lower surface of the second auxiliary support portion 15. In one embodiment, the vertical support portion 17 may include a plurality of axes extending along the third direction DR3. In one embodiment, the plurality of axes may be arranged in a row spaced apart from each other along the first direction DR1 to form a row. In one embodiment, a plurality of the above-mentioned rows may be arranged in the main support portion 11. In one embodiment, the vertical support portion 17 may be fixed to the main support portion 11, and the first auxiliary support portion 13 and the second auxiliary support portion 15 may be fixed to the vertical support portion 17. In one embodiment, the vertical support portion 17 may be formed integrally with the main support portion 11, and the first auxiliary support portion 13 and the second auxiliary support portion 15 may be fixed to the vertical support portion 17. In one embodiment, the fixing means may be welding.

[0091] The first connection portion 20 may be connected to the lower portion of the main support portion 11. In one embodiment, the first connection portion 20 may be connected to a portion of the main support portion 11 that does not overlap with the first auxiliary support portion 13 and / or the second auxiliary support portion 15. Therefore, the first connection portion 20 may not overlap with the first auxiliary support portion 13 and the second auxiliary support portion 15. In one embodiment, the first connection portion 20 may overlap with the first direction DR1 side edge and the opposite direction side edge of the first direction DR1 of the main support portion 11. In one embodiment, the first connection portion 20 may include a plurality of legs connected to the main support portion 11. In one embodiment, the first connection portion 20 may include an additional support structure arranged between the above-mentioned legs and the lower surface of the main support portion 11. In one embodiment, the above-mentioned plurality of legs may be arranged corresponding to each corner of the main support portion 11. In one embodiment, the first connection portion 20 may be connected to the main support portion 11. For example, the first connection portion 20 may be formed separately from the main support portion 11 and may be fixed to the main support portion 11 by bolts or welding. In another embodiment, the first connection portion 20 and the main support portion 11 may also be formed integrally. In one embodiment, the first connection portion 20 may have a structure that can be connected to a lifting object to be described later. For example, although not shown, the first connection portion 20 may have a bolt or a screw hole, and may be connected to the lifting object through the bolt or the screw hole. In another embodiment, although not shown, the first connection portion 20 may also be connected to the lifting object to be described later in the form of a clamp. In yet another embodiment, although not shown, the first connection portion 20 may also have an electromagnet so as to selectively connect to the lifting object to be described later. However, for the sake of convenience of explanation, the following detailed description will be centered on the case where the first connection portion 20 has a hole for inserting a bolt and is connected to the lifting object through a bolt.

[0092] The second connection part 30 may be arranged on the main support part 11. In one embodiment, the second connection part 30 may be arranged at the central part of the main support part 11. In one embodiment, the center of gravity of the second connection part 30 may overlap with the center of gravity of the support part 10. In one embodiment, the second connection part 30 may also be formed by passing through the main support part 11. In one embodiment, the second connection part 30 may include a structure that can be connected to a crane and / or a gantry.

[0093] Figure 2 is a plan view of a lifting device according to a first embodiment of the present invention.

[0094] Reference Figure 2 It can be understood that the second auxiliary support portion 15 (refer to Figure 1 ) is not shown because it completely overlaps with the first auxiliary support portion 13. The features of the first auxiliary support portion 13 described below can also be similarly applied to the second auxiliary support portion 15 (see Figure 1).

[0095] The first auxiliary support portion 13 may overlap with the main support portion 11. In one embodiment, the first auxiliary support portion 13 may include a 1-1 auxiliary support portion 13-1 and a 1-2 auxiliary support portion 13-2. In one embodiment, the 1-1 auxiliary support portion 13-1 may be arranged at the end of the second direction DR2 side of the main support portion 11, and overlap with the long side of the main support portion 11. In one embodiment, the 1-2 auxiliary support portion 13-2 may be arranged at the end of the second direction DR2 side of the main support portion 11, and overlap with the long side of the main support portion 11.

[0096] The 1-1st auxiliary support portion 13-1 and the 1-2nd auxiliary support portion 13-2 may include a long side extending in the first direction DR1 and a short side extending in the second direction DR2, respectively. The length of the long side of the 1-1st auxiliary support portion 13-1 (or the length in the first direction DR1) may be defined as a 1-1st length 13-1L, and the length of the short side (or the length in the second direction DR2) may be defined as a 1-1st width 13-1W. The length of the long side of the 1-2nd auxiliary support portion 13-2 (or the length in the first direction DR1) may be defined as a 1-2nd length 13-2L, and the length of the short side (or the length in the second direction DR2) may be defined as a 1-2nd width 13-2W.

[0097] In one embodiment, the 1-1 length 13-1L and the 1-2 length 13-2L may be the same. In one embodiment, the 1-1 length 13-1L and the 1-2 length 13-2L may be less than the length of the long side of the main support portion 11. In one embodiment, the 1-1 width 13-1W and the 1-2 width 13-2W may be the same. In one embodiment, the 1-1 width 13-1W and the 1-2 width 13-2W may be less than the length of the short side of the main support portion 11. For example, the sum of the 1-1 width 13-1W and the 1-2 width 13-2W may be equal to or less than half the length of the short side of the main support portion 11. Therefore, the area of ​​each of the 1-1 auxiliary support portion 13-1 and the 1-2 auxiliary support portion 13-2 and the sum of their areas may be less than the area of ​​the main support portion 11. In one embodiment, there may be an area that does not overlap with the first auxiliary support portion 13 at both ends in the first direction DR1 of the main support portion 11. The above-mentioned area may be connected to the first connecting portion 20 (refer to Figure 1 ) areas that overlap.

[0098] The vertical support portion 17 may include a plurality of axes arranged in one direction. The plurality of axes may be arranged in one direction to form an axis array. In one embodiment, the vertical support portion 17 may include a first axis array 17-1, a second axis array 17-2, a third axis array 17-3, and a fourth axis array 17-4 extending in a first direction DR1. The first axis array 17-1, the second axis array 17-2, the third axis array 17-3, and the fourth axis array 17-4 may respectively include a plurality of axes arranged in the first direction DR1. As described above, each axis array or axis may pass through the first auxiliary support portion 13 and the main support portion 11.

[0099] In one embodiment, the first axis column 17-1, the second axis column 17-2, the third axis column 17-3 and the fourth axis column 17-4 may be arranged along the second direction DR2. For example, the first axis column 17-1, the second axis column 17-2, the third axis column 17-3 and the fourth axis column 17-4 may be arranged sequentially along the second direction DR2. In one embodiment, the first axis column 17-1 and the second axis column 17-2 may overlap with the 1-1 auxiliary support portion 13-1. At this time, the second axis column 17-2 may be located on the second direction DR2 side of the first axis column 17-1. In one embodiment, the third axis column 17-3 and the fourth axis column 17-4 may overlap with the 1-2 auxiliary support portion 13-2. At this time, the fourth axis column 17-4 may be located on the second direction DR2 side of the third axis column 17-3. In one embodiment, the first axis column 17-1, the second axis column 17-2, the third axis column 17-3 and the fourth axis column 17-4 may be parallel to each other.

[0100] In one embodiment, the first axis array 17-1 and the second axis array 17-2 may be arranged crosswise with each other. In other words, the axes of the first axis array 17-1 and the axes of the second axis array 17-2 may be arranged in a zigzag shape. For example, if a virtual line L extending along the second direction DR2 is drawn, the line L may not pass through one of the axes of the first axis array 17-1 and one of the axes of the second axis array 17-2 at the same time.

[0101] In one embodiment, the third axis array 17-3 and the fourth axis array 17-4 may be arranged to cross each other. In other words, the axes of the third axis array 17-3 and the axes of the fourth axis array 17-4 may be arranged in a zigzag shape. For example, if a virtual line L extending along the second direction DR2 is drawn, the line L may not pass through one of the axes of the third axis array 17-3 and one of the axes of the fourth axis array 17-4 at the same time.

[0102] In one embodiment, the virtual line L may pass through two axes, one of the axes in the second axis array 17-2 and one of the axes in the fourth axis array 17-4. Figure 2Although not shown in the figure, the virtual line L may pass through two axes, one of the axes of the first axis array 17 - 1 and one of the axes of the third axis array 17 - 3 .

[0103] Figure 3 is a cross-sectional view of a portion of a lifting device according to a first embodiment of the present invention. Figure 3 is along Figure 1 A cross-sectional view of the lifting device taken along line III-III'.

[0104] Reference Figure 3 , the first auxiliary supporting part 13 and the second auxiliary supporting part 15 may be spaced apart from the main supporting part 11. For example, the 1-1 auxiliary supporting part 13-1 and the 1-2 auxiliary supporting part 13-2 may be spaced apart from the upper surface of the main supporting part 11, and the 2-1 auxiliary supporting part 15-1 and the 2-2 auxiliary supporting part 15-2 may be spaced apart from the lower surface of the main supporting part 11.

[0105] The thickness of the 1-1 auxiliary support portion 13-1 (or the length in the third direction DR3) may be defined as the 1-1 thickness 13-1T. The thickness of the 1-2 auxiliary support portion 13-2 (or the length in the third direction DR3) may be defined as the 1-2 thickness 13-2T. The thickness of the 2-1 auxiliary support portion 15-1 (or the length in the third direction DR3) may be defined as the 2-1 thickness 15-1T. The thickness of the 2-2 auxiliary support portion 15-2 (or the length in the third direction DR3) may be defined as the 2-2 thickness 15-2T.

[0106] In one embodiment, the 1-1 thickness 13-1T and the 1-2 thickness 13-2T may be the same. In one embodiment, the 2-1 thickness 15-1T and the 2-2 thickness 15-2T may be the same. In one embodiment, the 1-1 thickness 13-1T, the 1-2 thickness 13-2T, the 2-1 thickness 15-1T and the 2-2 thickness 15-2T may be the same. In one embodiment, the 1-1 thickness 13-1T, the 1-2 thickness 13-2T, the 2-1 thickness 15-1T and / or the 2-2 thickness 15-2T may be the same as the thickness 11-T of the main support portion 11.

[0107] The distance between the 1-1 auxiliary support portion 13-1 and the upper surface of the main support portion 11 may be defined as a first interval S1. The distance between the 2-1 auxiliary support portion 15-1 and the lower surface of the main support portion 11 may be defined as a second interval S2. The distance between the 1-2 auxiliary support portion 13-2 and the upper surface of the main support portion 11 may be defined as a third interval S3. The distance between the 2-2 auxiliary support portion 15-2 and the lower surface of the main support portion 11 may be defined as a fourth interval S4.

[0108] The distance between the first auxiliary support portion 13 and the main support portion 11 and the distance between the second auxiliary support portion 15 and the main support portion 11 may be the same. In one embodiment, the first interval S1 and the third interval S3 may be the same. In one embodiment, the second interval S2 and the fourth interval S4 may be the same. In one embodiment, the first interval S1, the second interval S2, the third interval S3 and the fourth interval S4 may be the same.

[0109] In one embodiment, the shaft of the vertical support portion 17 may pass through the first auxiliary support portion 13 and the second auxiliary support portion 15. For example, the shafts of the first shaft column 17-1 and the second shaft column 17-2 may pass through the main support portion 11, the 1st auxiliary support portion 13-1 and the 2nd auxiliary support portion 15-1. The shafts of the third shaft column 17-3 and the fourth shaft column 17-4 may pass through the main support portion 11, the 1st auxiliary support portion 13-2 and the 2nd auxiliary support portion 15-2.

[0110] like Figure 1 and Figure 2 As shown in FIG. 1 , the shafts of the first shaft row 17 - 1 and the shafts of the second shaft row 17 - 2 may be arranged in a zigzag shape with respect to each other, and the shafts of the third shaft row 17 - 3 and the shafts of the fourth shaft row 17 - 4 may be arranged in a zigzag shape with respect to each other. Figure 3 is a cross-sectional view taken along the line III-III' passing through each of the axes of the second axis array 17-2 and the fourth axis array 17-4, and therefore, Figure 3 A cross section of a shaft of each of the second shaft row 17 - 2 and the fourth shaft row 17 - 4 is shown.

[0111] The first axis array 17-1, the second axis array 17-2, the third axis array 17-3, and the fourth axis array 17-4 may include the same type of axis. In one embodiment, the first diameter 17-1D of the first axis array 17-1, the second diameter 17-2D of the second axis array 17-2, the third diameter 17-3D of the third axis array 17-3, and the fourth diameter 17-4D of the fourth axis array 17-4 may be the same.

[0112] In one embodiment, the vertical support portion 17 may have a shape that is symmetrical along the third direction DR3 with reference to the center line CL of the main support portion 11. In other words, the vertical support portion 17 may be symmetrical with respect to a plane that is parallel to the first direction DR1 and the second direction DR2 and passes through the center of the main support portion 11. Therefore, a portion of the vertical support portion 17 that protrudes above the upper surface of the main support portion 11 and another portion of the vertical support portion 17 that protrudes below the lower surface of the main support portion 11 may have the same shape as each other.

[0113] In one embodiment, the first auxiliary support portion 13 and the second auxiliary support portion 15 may have the same shape as each other. In one embodiment, the first auxiliary support portion 13 and the second auxiliary support portion 15 may include the same material (e.g., metal). In one embodiment, a portion of the vertical support portion 17 located above the upper surface of the main support portion 11 and a portion of the vertical support portion 17 located below the lower surface of the main support portion 11 may also have the same shape as each other.

[0114] Therefore, the total mass located above the main support portion 11 (e.g., a portion of the vertical support portion 17 and the first auxiliary support portion 13) and the total mass located below the main support portion 11 (e.g., a portion of the vertical support portion 17 and the second auxiliary support portion 15) can be the same as each other. Additionally, the distance between the first auxiliary support portion 13 and the main support portion 11 (e.g., the first interval S1 and the third interval S3) and the distance between the second auxiliary support portion 15 and the main support portion 11 (e.g., the second interval S2 and the fourth interval S4) can be the same as each other. Therefore, the center of gravity of the support portion 10 as a whole can be located within the main support portion 11, for example, can be located on the center line CL of the main support portion 11.

[0115] Figure 4 is a perspective view of a lifting device according to a second embodiment of the present invention.

[0116] Figure 5 is a plan view of a lifting device according to a second embodiment of the present invention.

[0117] Figure 6 is a cross-sectional view of a portion of a lifting device according to a second embodiment of the present invention. Figure 6 is along Figure 4 A cross-sectional view of the lifting device taken along line VI-VI'.

[0118] Reference Figure 4 and Figure 5 In one embodiment, the first axis array 17-1 and the second axis array 17-2 may be arranged side by side. For example, the axes of the first axis array 17-1 and the axes of the second axis array 17-2 may be arranged side by side with each other, respectively. In other words, the axes of the first axis array 17-1 and the axes of the second axis array 17-2 may be arranged in a dot matrix pattern. For example, if a virtual line L extending along the second direction DR2 is drawn, the line L may simultaneously pass through one of the axes of the first axis array 17-1 and one of the axes of the second axis array 17-2.

[0119] In one embodiment, the third axis array 17-3 and the fourth axis array 17-4 may be arranged side by side. For example, the axis of the third axis array 17-3 and the axis of the fourth axis array 17-4 may be arranged side by side with each other, respectively. In other words, the axis of the third axis array 17-3 and the axis of the fourth axis array 17-4 may be arranged in a dot matrix pattern. For example, if a virtual line L extending along the second direction DR2 is drawn, the line L may simultaneously pass through one of the axes of the third axis array 17-3 and one of the axes of the fourth axis array 17-4.

[0120] In one embodiment, the virtual line L may simultaneously pass through one axis of each of the first axis array 17 - 1 , the second axis array 17 - 2 , the third axis array 17 - 3 , and the fourth axis array 17 - 4 , for a total of four axes.

[0121] Reference Figure 6 ,like Figure 4 and Figure 5 As shown in FIG. 1 , the shafts of the first shaft row 17 - 1 and the shafts of the second shaft row 17 - 2 may be arranged side by side with each other, and the shafts of the third shaft row 17 - 3 and the shafts of the fourth shaft row 17 - 4 may be arranged side by side with each other. Figure 6 It is a cross-sectional view taken along the VI-VI' line passing through each of the axes of the first axis array 17-1, the second axis array 17-2, the third axis array 17-3, and the fourth axis array 17-4, and therefore, Figure 6 A cross section of a shaft of each of the first shaft row 17 - 1 , the second shaft row 17 - 2 , the third shaft row 17 - 3 , and the fourth shaft row 17 - 4 is shown.

[0122] Figure 7 is a perspective view of a lifting device according to a third embodiment of the present invention.

[0123] Figure 8 is a plan view of a lifting device according to a third embodiment of the present invention.

[0124] Fig. 9 is a cross-sectional view of a portion of a lifting device according to a third embodiment of the present invention.

[0125] Reference Figure 7 , the lifting device 1 may further include a fixing portion 19 coupled to the vertical support portion 17. Figure 7 In the embodiment, the axis of the vertical support 17 is as shown in Figure 1 The arrangement is shown in a zigzag shape, but the present invention is not limited thereto.

[0126] In one embodiment, a portion of the fixing portion 19 may be arranged on the upper surface and / or the lower surface of the main support portion 11. In one embodiment, a portion of the fixing portion 19 may be arranged on the upper surface and / or the lower surface of the first auxiliary support portion 13. In one embodiment, a portion of the fixing portion 19 may be arranged on the upper surface and / or the lower surface of the second auxiliary support portion 15.

[0127] In one embodiment, the fixing portion 19 may be coupled to the vertical support portion 17 and fixed at a certain position. In one embodiment, the fixing portion 19 may be coupled to the vertical support portion 17 and fix the first auxiliary support portion 13 and the second auxiliary support portion 15 to certain positions, respectively. For example, the shaft of the vertical support portion 17 may include a thread formed on its surface, and the fixing portion 19 may include a nut engaged with the above-mentioned thread. The shaft of the vertical support portion 17 and the nut of the fixing portion 19 may be threadedly coupled so that the first auxiliary support portion 13 and the second auxiliary support portion 15 are fixed to be located at a certain distance from the main support portion 11. At this time, the position of the first auxiliary support portion 13 and / or the second auxiliary support portion 15 relative to the main support portion 11 can be changed by changing the position of the screw of the fixing portion 19 coupled to the shaft of the vertical support portion 17.

[0128] In one embodiment, the fixing portion 19 may also fix the vertical support portion 17 to the main support portion 11. For example, the fixing portion 19 may include nuts arranged at the upper and lower ends of the main support portion 11, and the above-mentioned nuts may be threadedly connected to the shaft of the vertical support portion 17, thereby fixing the shaft of the vertical support portion 17 to the main support portion 11. In another embodiment, the main support portion 11 may include a threaded hole engaged with the shaft of the vertical support portion 17, and the shaft of the vertical support portion 17 may be threadedly connected to the above-mentioned threaded hole of the main support portion 11. At this time, the above-mentioned nuts at the upper and lower ends of the main support portion 11 may be omitted, or may be connected to the vertical support portion 17 to strengthen the fixation of the vertical support portion 17 relative to the main support portion 11.

[0129] Reference Figure 8 , the fixing part 19 may be coupled to the vertical support part 17. The fixing part 19 may include nuts corresponding to the respective axes of the vertical support part 17. When viewed on a plane, the respective nuts of the fixing part 19 may have a shape surrounding the axis of the corresponding vertical support part 17. The intervals between the respective axes of the vertical support part 17 may be appropriately adjusted so that the respective nuts of the fixing part 19 are spaced apart from each other.

[0130] Reference Fig. 9 , the nut of the fixing portion 19 may be coupled to the shaft of the vertical supporting portion 17 .

[0131] In one embodiment, the thickness (or the length in the third direction DR3) of each nut of the fixing portion 19 may be the same as the thickness (or the length in the third direction DR3) of the first auxiliary support portion 13 and / or the second auxiliary support portion 15. In one embodiment, the fixing portion 19 may be connected to the shaft of the first axis column 17-1 and / or the shaft of the second axis column 17-2 and arranged on the upper surface and lower surface of the 1-1 auxiliary support portion 13-1. In one embodiment, the fixing portion 19 may be connected to the shaft of the first axis column 17-1 and / or the shaft of the second axis column 17-2 and arranged on the upper surface and lower surface of the 2-1 auxiliary support portion 15-1. In one embodiment, the fixing portion 19 may be connected to the shaft of the third axis column 17-3 and / or the shaft of the fourth axis column 17-4 and arranged on the upper surface and lower surface of the 1-2 auxiliary support portion 13-2. In one embodiment, the fixing portion 19 may be coupled to the shaft of the third shaft array 17-3 and / or the shaft of the fourth shaft array 17-4 and arranged on the upper and lower surfaces of the 2-2nd auxiliary support portion 15-2. In one embodiment, the fixing portion 19 may be coupled to the shaft of each of the first shaft array 17-1, the second shaft array 17-2, the third shaft array 17-3 and / or the fourth shaft array 17-4 and arranged on the upper and lower surfaces of the main support portion 11.

[0132] In one embodiment, the fixing portion 19 disposed on the lower surface of the 1-1 auxiliary support portion 13-1 and the fixing portion 19 disposed on the upper surface of the main support portion 11 may be spaced apart from each other. That is, the first interval S1 may be greater than the sum of the thicknesses of the two nuts of the fixing portion 19. Fig. 9 As shown in FIG. 1 , the fixing portion 19 disposed on the lower surface of the 1-1 auxiliary support portion 13 - 1 and the fixing portion 19 disposed on the upper surface of the main support portion 11 may contact each other. That is, the first interval S1 may also be equal to the sum of the thicknesses of the two nuts of the fixing portion 19 .

[0133] In one embodiment, the fixing portion 19 disposed on the upper surface of the 2-1 auxiliary support portion 15-1 and the fixing portion 19 disposed on the lower surface of the main support portion 11 may be spaced apart from each other. That is, the second interval S2 may be greater than the sum of the thicknesses of the two nuts of the fixing portion 19. Fig. 9 As shown in FIG. 1 , the fixing portion 19 disposed on the upper surface of the 2-1 auxiliary support portion 15-1 and the fixing portion 19 disposed on the lower surface of the main support portion 11 may contact each other. That is, the second interval S2 may also be equal to the sum of the thicknesses of the two nuts of the fixing portion 19.

[0134] In one embodiment, the fixing portion 19 disposed on the lower surface of the 1-2 auxiliary support portion 13-2 and the fixing portion 19 disposed on the upper surface of the main support portion 11 may be spaced apart from each other. That is, the third interval S3 may be greater than the sum of the thicknesses of the two nuts of the fixing portion 19. Fig. 9 As shown in FIG. 1 , the fixing portion 19 disposed on the lower surface of the 1-2 auxiliary support portion 13 - 2 and the fixing portion 19 disposed on the upper surface of the main support portion 11 may contact each other. That is, the third interval S3 may also be equal to the sum of the thicknesses of the two nuts of the fixing portion 19 .

[0135] In one embodiment, the fixing portion 19 disposed on the upper surface of the 2-2 auxiliary support portion 15-2 and the fixing portion 19 disposed on the lower surface of the main support portion 11 may be spaced apart from each other. That is, the fourth interval S4 may be greater than the sum of the thicknesses of the two nuts of the fixing portion 19. Fig. 9 As shown in FIG. 1 , the fixing portion 19 disposed on the upper surface of the 2-2 auxiliary support portion 15-2 and the fixing portion 19 disposed on the lower surface of the main support portion 11 may contact each other. That is, the fourth interval S4 may also be equal to the sum of the thicknesses of the two nuts of the fixing portion 19.

[0136] In one embodiment, the shaft of the vertical support portion 17 may not protrude from the upper surface of the nut of the fixing portion 19 arranged above the 1-1 auxiliary support portion 13-1 or the 1-2 auxiliary support portion 13-2. In other words, the upper surface of the nut and the upper surface of the shaft may be located on the same plane. Fig. 9 As shown in FIG. 1 , the shaft of the vertical support portion 17 may protrude onto the upper surface of the nut of the fixing portion 19 disposed on the 1-1th auxiliary support portion 13 - 1 or the 1-2nd auxiliary support portion 13 - 2 .

[0137] Similarly, the shaft of the vertical support portion 17 may not protrude below the lower surface of the nut of the fixing portion 19 arranged below the 2-1st auxiliary support portion 15-1 or the 2-2nd auxiliary support portion 15-2. In other words, the lower surface of the nut and the lower surface of the shaft may be located on the same plane. Fig. 9 As shown in FIG. 1 , the shaft of the vertical support portion 17 may protrude below the lower surface of the nut of the fixing portion 19 disposed below the 2-1st auxiliary support portion 15 - 1 or the 2-2nd auxiliary support portion 15 - 2 .

[0138] Fig.10 is a perspective view of a lifting device according to a fourth embodiment of the present invention.

[0139] Fig.11 is a plan view of a lifting device according to a fourth embodiment of the present invention.

[0140] Fig.12 is a cross-sectional view of a portion of a lifting device according to a fourth embodiment of the present invention. Fig.12 is along Fig.10 A cross-sectional view of the lifting device taken along line XII-XII'.

[0141] Reference Fig.10 ,exist Figure 7 In the embodiment shown in FIG. 1 , an auxiliary support portion may be additionally arranged. Fig.10 In the embodiment shown in , the vertical support portion 17 may include a further extended shaft, and the embodiment may include a structure in which a plurality of plates are stacked to form a plurality of layers at the upper and lower portions of the main support portion 11 .

[0142] In one embodiment, the first auxiliary support portion 13 may include a plurality of plates arranged spaced apart from each other along the third direction DR3. In one embodiment, the second auxiliary support portion 15 may include a plurality of plates arranged spaced apart from each other along the third direction DR3. The arrangement structure of the plates of the first auxiliary support portion 13 and the arrangement structure of the plates of the second auxiliary support portion 15 may be symmetrical to each other with respect to the main support portion 11. In one embodiment, the plates of the first auxiliary support portion 13 and the plates of the second auxiliary support portion 15 may be the same plates as each other.

[0143] Refer to Fig.11 and Fig.12 The first auxiliary support part 13 may include a 1-1 auxiliary support part 13-1, a 1-2 auxiliary support part 13-2, a 1-3 auxiliary support part 13-3 and a 1-4 auxiliary support part 13-4. The second auxiliary support part 15 may include a 2-1 auxiliary support part 15-1, a 2-2 auxiliary support part 15-2, a 2-3 auxiliary support part 15-3 and a 2-4 auxiliary support part 15-4.

[0144] In one embodiment, the 1-3rd auxiliary support portion 13-3 may be arranged on the 1-1st auxiliary support portion 13-1. In one embodiment, the 1-1st auxiliary support portion 13-1 and the 1-3rd auxiliary support portion 13-3 may be spaced apart from each other. In one embodiment, the 1-4th auxiliary support portion 13-4 may be arranged on the 1-2nd auxiliary support portion 13-2. In one embodiment, the 1-2nd auxiliary support portion 13-2 and the 1-4th auxiliary support portion 13-4 may be spaced apart from each other. In one embodiment, the 2-3rd auxiliary support portion 15-3 may be arranged below the 2-1st auxiliary support portion 15-1. In one embodiment, the 2-1st auxiliary support portion 15-1 and the 2-3rd auxiliary support portion 15-3 may be spaced apart from each other. In one embodiment, the 2-4th auxiliary support portion 15-4 may be arranged below the 2-2nd auxiliary support portion 15-2. In one embodiment, the 2-2nd auxiliary supporting portion 15 - 2 and the 2-4th auxiliary supporting portion 15 - 4 may be spaced apart from each other.

[0145] In one embodiment, the shaft of the vertical support portion 17 (for example, the shaft of the first shaft column 17-1 and the shaft of the second shaft column 17-2) can pass through the 1st to 3rd auxiliary support portion 13-3 and the 2nd to 3rd auxiliary support portion 15-3. In one embodiment, the shaft of the vertical support portion 17 (for example, the shaft of the third shaft column 17-3 and the shaft of the fourth shaft column 17-4) can pass through the 1st to 4th auxiliary support portion 13-4 and the 2nd to 4th auxiliary support portion 15-4.

[0146] In one embodiment, in order to fix the 1-3rd auxiliary support part 13-3 at a certain position, the nut of the fixing part 19 may be arranged on the upper surface and the lower surface of the 1-3rd auxiliary support part 13-3 and connected to the shaft. In one embodiment, in order to fix the 2-3rd auxiliary support part 15-3 at a certain position, the nut of the fixing part 19 may be arranged on the upper surface and the lower surface of the 2-3rd auxiliary support part 15-3 and connected to the shaft. In one embodiment, in order to fix the 1-4th auxiliary support part 13-4 at a certain position, the nut of the fixing part 19 may be arranged on the upper surface and the lower surface of the 1-4th auxiliary support part 13-4 and connected to the shaft. In one embodiment, in order to fix the 2-4th auxiliary support part 15-4 at a certain position, the nut of the fixing part 19 may be arranged on the upper surface and the lower surface of the 2-4th auxiliary support part 15-4 and connected to the shaft.

[0147] The thickness of the 1-3rd auxiliary support portion 13-3 (or the length in the third direction DR3) may be defined as the 1-3rd thickness 13-3T. The thickness of the 1-4th auxiliary support portion 13-4 (or the length in the third direction DR3) may be defined as the 1-4th thickness 13-4T. The thickness of the 2-3rd auxiliary support portion 15-3 (or the length in the third direction DR3) may be defined as the 2-3rd thickness 15-3T. The thickness of the 2-4th auxiliary support portion 15-4 (or the length in the third direction DR3) may be defined as the 2-4th thickness 15-4T.

[0148] In one embodiment, the shapes of the 1-3 auxiliary support portion 13-3 and the 1-4 auxiliary support portion 13-4 may be the same as the shapes of the 1-1 auxiliary support portion 13-1 and the 1-2 auxiliary support portion 13-2. For example, the 1-3 thickness 13-3T and the 1-4 thickness 13-4T may be the same as the 1-1 thickness 13-1T and the 1-2 thickness 13-2T. In one embodiment, the shapes of the 2-3 auxiliary support portion 15-3 and the 2-4 auxiliary support portion 15-4 may be the same as the shapes of the 2-1 auxiliary support portion 15-1 and the 2-2 auxiliary support portion 15-2. For example, the 2-3 thickness 15-3T and the 2-4 thickness 15-4T may be the same as the 2-1 thickness 15-1T and the 2-2 thickness 15-2T.

[0149] In one embodiment, the shapes of the 1-1 auxiliary support portion 13-1, the 1-2 auxiliary support portion 13-2, the 1-3 auxiliary support portion 13-3 and the 1-4 auxiliary support portion 13-4 may be the same as the shapes of the 2-1 auxiliary support portion 15-1, the 2-2 auxiliary support portion 15-2, the 2-3 auxiliary support portion 15-3 and the 2-4 auxiliary support portion 15-4. Fig.11 Only the 1-3 auxiliary support part 13-3 and the 1-4 auxiliary support part 13-4 located on the uppermost side or the side in the third direction DR3 are shown. The 1-1 auxiliary support part 13-1, the 2-1 auxiliary support part 15-1, and the 2-3 auxiliary support part 15-3 overlap with the 1-3 auxiliary support part 13-3, and thus may not be visually recognized when viewed in the third direction DR3. The 1-2 auxiliary support part 13-2, the 2-2 auxiliary support part 15-2, and the 2-4 auxiliary support part 15-4 overlap with the 1-4 auxiliary support part 13-4, and thus may not be visually recognized when viewed in the third direction DR3.

[0150] The distance between the lower surface of the 1-3rd auxiliary support part 13-3 and the upper surface of the 1-1st auxiliary support part 13-1 may be defined as a fifth interval S5. The distance between the upper surface of the 2-3rd auxiliary support part 15-3 and the lower surface of the 2-1st auxiliary support part 15-1 may be defined as a sixth interval S6. The distance between the lower surface of the 1-4th auxiliary support part 13-4 and the upper surface of the 1-2nd auxiliary support part 13-2 may be defined as a seventh interval S7. The distance between the upper surface of the 2-4th auxiliary support part 15-4 and the lower surface of the 2-2nd auxiliary support part 15-2 may be defined as an eighth interval S8.

[0151] In one embodiment, the fifth interval S5 may be the same as the first interval S1. In one embodiment, the seventh interval S7 may be the same as the third interval S3. In one embodiment, the sixth interval S6 may be the same as the second interval S2. In one embodiment, the eighth interval S8 may be the same as the fourth interval S4. In one embodiment, the first interval S1 to the eighth interval S8 may be the same as each other.

[0152] Fig.13 is a perspective view of a lifting device according to a fifth embodiment of the present invention.

[0153] Fig.14 is a plan view of a lifting device according to a fifth embodiment of the present invention.

[0154] Fig.15 is a cross-sectional view of a portion of a lifting device according to a fifth embodiment of the present invention. Fig.15 is along Fig.13 A cross-sectional view of the lifting device taken along line XV-XV'.

[0155] Reference Figures 13 to 15 The lifting device 1 may include a main supporting portion 11 , a first auxiliary supporting portion 13 and a second auxiliary supporting portion 15 .

[0156] In one embodiment, the first auxiliary support 13 and the second auxiliary support 15 may be directly connected to the main support 11. For example, the first auxiliary support 13 and the second auxiliary support 15 may directly contact and be fixed to the main support 11. In one embodiment, the first auxiliary support 13 may be fixed on the upper surface of the main support 11. In one embodiment, the second auxiliary support 15 may be fixed below the lower surface of the main support 11. In one embodiment, the fixing means may be welding.

[0157] Although Fig.15 Only the 1-1st auxiliary support portion 13-1, the 1-2nd auxiliary support portion 13-2, the 2-1st auxiliary support portion 15-1 and the 2-2nd auxiliary support portion 15-2 are shown, but the present invention is not limited thereto. Fig.12 As shown in FIG. 1 , the first auxiliary support 13 and the second auxiliary support 15 may include a plurality of plates arranged along the third direction DR3 . At this time, the plurality of plates may be directly contacted and fixed to each other.

[0158] exist Fig.15 1-1 thickness 13-1T, 1-2 thickness 13-2T, 2-1 thickness 15-1T and 2-2 thickness 15-2T are shown to be the same as the thickness 11-T of the main support portion 11, but the present invention is not limited thereto. As another embodiment, the 1-1 thickness 13-1T, 1-2 thickness 13-2T, 2-1 thickness 15-1T and / or 2-2 thickness 15-2T may be greater than the thickness 11-T of the main support portion 11.

[0159] Fig.16 FIG. 1 is a side view showing a lifting device according to an embodiment of the present invention together with a load.

[0160] Although Fig.16 Shows Figure 1 The first embodiment shown in FIG. 1 is used as a reference for description, but the present invention is not necessarily limited thereto and can also be similarly applied to the second to fifth embodiments. Fig.16 It is a side view of the lifting device 1 viewed in the second direction DR2.

[0161] When the lifting device 1 is connected to the lifting object and lifts the lifting object, a load W according to the weight of the lifting object may be applied to the lifting device 1 (for example, the first connection part 20). The lifting device 1, in particular, the support part 10 of the lifting device 1 may have a shape extending in the first direction DR1. If the load W is applied to the first connection part 20 located at both ends of the support part 10 in the first direction DR1, the load W will be applied to both ends of the support part 10 in the first direction DR1. Therefore, a bending moment B may be generated in the support part 10. For example, due to the load W applied to the end in the first direction DR1 of the support part 10, a counterclockwise bending moment B may be generated. Due to the load W applied to the end in the opposite direction of the first direction DR1 of the support part 10, a clockwise bending moment B may be generated.

[0162] At this time, without the structures of the first auxiliary support part 13 and the second auxiliary support part 15, the main support part 11 may bend due to the bending moment B generated by the load W, and such bending of the main support part 11 may cause damage to the support part 10 and even the lifting device 1.

[0163] The first auxiliary support 13 and the second auxiliary support 15 can prevent this from happening. Due to the directional characteristics of the bending moment B, the first auxiliary support 13 located on the main support 11 can be stretched by the tensile force. On the contrary, the second auxiliary support 15 located below the main support 11 can be compressed by the compressive force. Since the first auxiliary support 13, the second auxiliary support 15 and the main support 11 are connected by the vertical support 17, they can be identified as one object when subjected to the bending moment B. In one embodiment, the sum of the mass of a portion of the vertical support 17 located above the upper surface of the main support 11 and the first auxiliary support 13 can be equal to the sum of the mass of a portion of the vertical support 17 located below the lower surface of the main support 11 and the second auxiliary support 15. In addition, a portion of the vertical support 17 located above the upper surface of the main support 11 and the first auxiliary support 13 and a portion of the vertical support 17 located below the lower surface of the main support 11 and the second auxiliary support 15 can have a symmetrical shape with the main support 11 as a reference. Therefore, when the support portion 10 is viewed as a whole, a neutral plane NP where bending deformation is minimal may be formed in the main support portion 11 .

[0164] In one embodiment, the neutral plane NP and the center of gravity of the support portion 10 may be located at the center of the main support portion 11 along the third direction DR3. Figure 3 ) may also be located at the center of the above-mentioned main support portion 11. As a result, the center of gravity of the support portion 10 may be located within the main support portion 10, and the neutral plane NP of the bending deformation may be located within the main support portion 11. Therefore, the deformation caused by the bending moment of the main support portion 11 where the neutral plane NP is located may be minimized, and more stable lifting may be achieved.

[0165] Figures 17a to 17c 1 is a perspective view showing the states in steps of a lifting process using a lifting device according to an embodiment of the present invention.

[0166] Reference Fig.17a , the lifting device 1 can move toward the lifting object 2. For example, the lifting device 1 can move toward the lifting object 2 along the second direction DR2. At this time, the lifting device 1 can move in translation through the lifting arm 3, and the lifting arm 3 can be connected to the second connection part 30 of the lifting device 1. The lifting arm 3 can be connected to a translational moving means such as a crane, a gantry, etc. Although Fig.17a It is not shown in the figure, but a process of aligning the lifting device 1 with the lifting object 2 can also be performed.

[0167] In one embodiment, the lifting object 2 may be a part of a manufacturing device for a display device. For example, the lifting object 2 may be an assembly on which multiple components of the manufacturing device for a display device are installed.

[0168] Reference Fig.17b , the lifting device 1 can be moved downward to be connected with the lifting object 2. The first connection portion 20 of the lifting device 1 can be configured to match with both side surfaces of the lifting object 2.

[0169] In one embodiment, the lifting device 1 can be lowered so that the first connection part 20 overlaps with the lifting object 2, and then the first connection part 20 and the lifting object 2 can be fixed to each other. For example, the first connection part 20 and the lifting object 2 can respectively include screw holes of the same shape, and screws can be connected after the screw holes are overlapped with each other. Through the process as described above, the lifting object 2 can be fixed to the lifting device 1, and then the lifting object 2 can be moved together with the lifting device 1.

[0170] Reference Fig.17c , the lifting device 1 can be raised and moved. For example, the lifting device 1 can be raised in the third direction DR3 and moved in the second direction DR2. Thus, a part of the manufacturing device of the display device can be replaced by the lifting device 1. At this time, the lifting object 2 can be moved together. In the process described above, the distribution of the load applied to the lifting device 1 due to the lifting object 2 is as follows: Fig.16 as shown in .

[0171] Figures 17a to 17c Shown Figures 1 to 3 The first embodiment shown in FIG. 1 is a lifting process as a reference, but the present invention is not necessarily limited thereto. The second embodiment to the fifth embodiment can also lift the lifting object in the same manner.

[0172] Fig.18 The present invention is a plan view of a display device manufactured by using a display device manufacturing device, wherein components of the display device manufacturing device can be replaced by a lifting device according to an embodiment of the present invention. Fig.19 is a cross-sectional view of a display device manufactured by using a display device manufacturing device, wherein components of the display device manufacturing device can be replaced by a lifting device according to an embodiment of the present invention. Fig.19 is along Fig.18 A cross-sectional view of the display device taken along line AA'.

[0173] Reference Fig.18 and Fig.19 , a display area DA and a non-display area NDA outside the display area DA may be defined on the base substrate 41 of the display device 4. A light emitting element 48 may be arranged in the display area DA, and a power wiring (not shown) and the like may be arranged in the non-display area NDA. In addition, a pad portion C may be arranged in the non-display area NDA.

[0174] A plurality of deposition material patterns may be arranged in the display area DA. At this time, the display area DA may be in an amorphous form.

[0175] The display device 4 may include a display substrate D, an intermediate layer 48 - 2 disposed on the display substrate D, and an opposite electrode 48 - 3 disposed on the intermediate layer 48 - 2. In addition, the display device 4 may include a thin film encapsulation layer E disposed above the opposite electrode 48 - 3.

[0176] The display substrate D may include a base substrate 41 , a thin film transistor TFT, a through hole layer 47 , and a pixel electrode 48 - 1 .

[0177] The base substrate 41 may use a plastic material, or may use a metal material such as SUS, Ti, etc. In addition, the base substrate 41 may use polyimide (PI).

[0178] The thin film transistor TFT may be disposed on the base substrate 41 , the through hole layer 47 may be disposed to cover the thin film transistor TFT, and the light emitting element 48 may be disposed on the through hole layer 47 .

[0179] A buffer layer 42 formed of an organic compound and / or an inorganic compound may be further disposed on the upper surface of the base substrate 41, and the buffer layer 42 may contain SiO x (x≥1) and / or SiN x (x≥1).

[0180] After disposing the active layer 43 arranged in a predetermined pattern on the buffer layer 42, the active layer 43 may be buried by the gate insulating layer 44. The active layer 43 may have a source region 43-1 and a drain region 43-3, and may further include a channel region 43-2 therebetween.

[0181] Such active layer 43 may be formed to contain various substances. In one embodiment, the active layer 43 may contain an inorganic semiconductor substance such as amorphous silicon or crystalline silicon. In another embodiment, the active layer 43 may contain an oxide semiconductor. In yet another embodiment, the active layer 43 may contain an organic semiconductor substance. Hereinafter, for the sake of convenience of description, a detailed description will be given focusing on the case where the active layer 43 is formed of amorphous silicon.

[0182] The active layer 43 may be formed by forming an amorphous silicon layer on the buffer layer 42, crystallizing the amorphous silicon layer to form a polysilicon layer, and patterning the polysilicon layer. The source region 43-1 and the drain region 43-3 of the active layer 43 may be doped with impurities according to the type of thin film transistors such as a driving thin film transistor (not shown) and a switching thin film transistor (not shown).

[0183] A gate electrode 45 corresponding to the active layer 43 and an interlayer insulating layer 46 burying the gate electrode 45 may be arranged on the upper surface of the gate insulating layer 44. After forming a contact hole CNT1 in the interlayer insulating layer 46 and the gate insulating layer 44, a source electrode 47-1 and a drain electrode 47-2 may be arranged on the interlayer insulating layer 46 so that the source electrode 47-1 and the drain electrode 47-2 contact the source region 43-1 and the drain region 43-3, respectively.

[0184] The through-hole layer 47 may be disposed on the upper portion of the thin film transistor TFT, and the pixel electrode 48-1 of the light emitting element 48 may be disposed on the upper portion of the through-hole layer 47. The pixel electrode 48-1 contacts the drain electrode 47-2 of the thin film transistor TFT through the through hole CNT2 formed in the through-hole layer 47. The through-hole layer 47 may be formed of an inorganic substance and / or an organic substance, may be formed as a single layer or two or more layers, may be formed as a planarized film so that its upper surface is planar regardless of the curvature of the lower film, or may be formed to be curved according to the curvature of the film located at the lower portion.

[0185] After the pixel electrode 48-1 is disposed on the through-hole layer 47, a pixel defining film 49 may be formed of organic and / or inorganic matter so that the pixel defining film 49 covers the pixel electrode 48-1 and the through-hole layer 47, and the pixel defining film 49 may be opened to expose the pixel electrode 48-1.

[0186] The intermediate layer 48-2 and the counter electrode 48-3 may be arranged on the pixel electrode 48-1. In one embodiment, the counter electrode 48-3 may be arranged on the entire surface of the display substrate D. In this case, the counter electrode 48-3 may be arranged on the intermediate layer 48-2 and the pixel defining film 49. Hereinafter, for the sake of convenience, the case where the counter electrode 48-3 is arranged on the intermediate layer 48-2 and the pixel defining film 49 will be described in detail.

[0187] The pixel electrode 48 - 1 may be used as an anode electrode, and the counter electrode 48 - 3 may be used as a cathode electrode. Of course, the polarities of the pixel electrode 48 - 1 and the counter electrode 48 - 3 may be reversed.

[0188] The pixel electrode 48 - 1 and the opposite electrode 48 - 3 are insulated from each other by the intermediate layer 48 - 2 described above, and light emission is achieved in the organic light emitting layer by applying voltages of different polarities to the intermediate layer 48 - 2 .

[0189] The intermediate layer 48-2 may have an organic light emitting layer. As another optional example, the intermediate layer 48-2 may have an organic light emitting layer, and in addition, may have at least one of a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer. The present embodiment is not limited thereto, and the intermediate layer 48-2 may have an organic light emitting layer, and may also have other various functional layers (not shown).

[0190] The intermediate layer 48 - 2 may be provided in plurality, and the plurality of intermediate layers 48 - 2 may form the display area DA. At this time, the plurality of intermediate layers 48 - 2 may be arranged to be spaced apart from each other inside the display area DA.

[0191] On the other hand, a unit pixel is composed of a plurality of sub-pixels, and the plurality of sub-pixels can emit light of various colors. For example, the plurality of sub-pixels may include sub-pixels that emit red light, green light, and blue light, respectively, or may include sub-pixels that emit red light, green light, blue light, and white light, respectively (not shown). The sub-pixels described above may include an intermediate layer 48-2.

[0192] The thin film encapsulation layer E may include a plurality of inorganic layers, or may include an inorganic layer and an organic layer. The above-mentioned organic layer of the thin film encapsulation layer E may be formed of a polymer, and preferably may be a single layer or a stacked layer formed of any one of polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene and polyacrylate. The above-mentioned inorganic layer of the thin film encapsulation layer E may be a single layer or a stacked layer including a metal oxide or a metal nitride. Specifically, the above-mentioned inorganic layer may include SiN x 、Al 2 O 3 、SiO 2 、TiO 2 The uppermost layer exposed to the outside among the thin film encapsulation layers E may be formed of an inorganic layer to prevent moisture from penetrating into the light emitting element 48 .

[0193] The thin film encapsulation layer E may include at least one sandwich structure in which at least one organic layer is interposed between at least two inorganic layers. As another example, the thin film encapsulation layer E may include at least one sandwich structure in which at least one inorganic layer is interposed between at least two organic layers. As yet another example, the thin film encapsulation layer E may also include a sandwich structure in which at least one organic layer is interposed between at least two inorganic layers and a sandwich structure in which at least one inorganic layer is interposed between at least two organic layers.

[0194] As mentioned above, the present invention has been described with reference to an embodiment shown in the accompanying drawings, but this is merely exemplary, and those skilled in the art will appreciate that various modifications and variations of the embodiments may be made therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical ideas of the attached claims.

Claims

1. A lifting device for moving a part of a manufacturing device for a display device, comprising: Main support part; a first auxiliary support portion, arranged on the main support portion; A second auxiliary support portion, arranged below the main support portion; as well as A plurality of shafts penetrate the main support portion, the first auxiliary support portion, and the second auxiliary support portion at the same time.

2. The lifting device according to claim 1, wherein: The first auxiliary support portion is spaced apart from the main support portion, and the second auxiliary support portion is spaced apart from the main support portion.

3. The lifting device according to claim 2, wherein: A spacing distance between the first auxiliary supporting portion and the main supporting portion and a spacing distance between the second auxiliary supporting portion and the main supporting portion are identical to each other.

4. The lifting device according to claim 1, wherein: At least a portion of the plurality of shafts are arranged in a row spaced apart from each other along a direction of one side of the main support portion.

5. The lifting device according to claim 1, wherein: When viewed on a plane, the plurality of axes are arranged in a zigzag configuration.

6. The lifting device according to claim 1, wherein: The first auxiliary support portion is provided in plurality, and The plurality of first auxiliary supporting portions include a 1-1 auxiliary supporting portion overlapping a first long side of the main supporting portion and a 1-2 auxiliary supporting portion overlapping a second long side different from the first long side.

7. The lifting device according to claim 6, wherein: The second auxiliary support parts are provided in plurality, and The plurality of second auxiliary supporting portions include a 2-1 auxiliary supporting portion overlapping the 1-1 auxiliary supporting portion and a 2-2 auxiliary supporting portion overlapping the 1-2 auxiliary supporting portion.

8. The lifting device according to claim 1, wherein: The first auxiliary support portion is provided in plurality, and The plurality of first auxiliary support portions are arranged on the main support portion in a thickness direction of the main support portion so as to be spaced apart from each other.

9. The lifting device according to claim 8, further comprising: a plurality of the second auxiliary supporting parts are arranged below the main supporting part and spaced apart from each other in the thickness direction of the main supporting part, and The distance at which the plurality of first auxiliary supporting portions are spaced apart from each other is the same as the distance at which the plurality of second auxiliary supporting portions are spaced apart from each other.

10. The lifting device according to claim 1, wherein: The second auxiliary support parts are provided in plurality, and A plurality of the second auxiliary supporting portions are arranged below the main supporting portion and spaced apart from each other in a thickness direction of the main supporting portion.

11. The lifting device according to claim 1, further comprising: A fixing portion fixes the main support portion, the first auxiliary support portion, and the second auxiliary support portion to the plurality of shafts.

12. The lifting device according to claim 1, further comprising: A connection portion is fixed to the main support portion and is configured to be connected to a part of a manufacturing device of the display device.

13. The lifting device according to claim 1, wherein: The sum of the weight of a portion of the plurality of shafts protruding above the main support portion and the weight of the first auxiliary support portion is equal to the sum of the weight of another portion of the plurality of shafts protruding below the main support portion and the weight of the second auxiliary support portion.

14. A lifting device for moving a part of a manufacturing device for a display device, comprising: Main support part; a first auxiliary support portion, arranged on the main support portion; as well as A second auxiliary support portion is arranged below the main support portion, The first auxiliary supporting portion and the second auxiliary supporting portion are arranged symmetrically with respect to the main supporting portion.

15. A lifting device according to claim 14, wherein: The first auxiliary supporting portion and the second auxiliary supporting portion are respectively in direct contact with the main supporting portion.

16. The lifting device according to claim 14, wherein: On a plane, an area of ​​the first auxiliary supporting portion and an area of ​​the second auxiliary supporting portion are smaller than an area of ​​the main supporting portion.

17. The lifting device according to claim 14, wherein: The first auxiliary supporting portion and the second auxiliary supporting portion overlap each other on a plane.

18. The lifting device according to claim 14, wherein: The mass of the first auxiliary supporting portion is the same as the mass of the second auxiliary supporting portion.

19. The lifting device according to claim 14, wherein: A plurality of the first auxiliary support parts are provided, and One of the plurality of first auxiliary supporting portions is disposed at a first end of the main supporting portion, and another of the plurality of first auxiliary supporting portions is disposed at a second end opposite to the first end.

20. The lifting device according to claim 14, wherein: A plurality of the first auxiliary support parts are provided, and The plurality of first auxiliary support portions are arranged on the main support portion along a thickness direction of the main support portion.

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