Cargo lifting device

Abstract

To provide a cargo lifting device excellent in usability when being used in an open ceiling space.SOLUTION: A cargo lifting device 1 is provided with a column 4, a loading table 2, and a mobile device 5. The column 4 is provided over an open ceiling space 71 from a lower floor to a higher floor, having a vertically-movable slider 3. The loading table 2, on which construction material 27 is loaded, is attached on the slider 3, and the mobile device 5 allows the loading table 2 which has been lifted to a specific floor to be moved from the open ceiling space 71 to a surface of the floor.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a luggage lifting device suitable for use in an open atrium space extending from a lower floor to an upper floor of a building. [Background technology]

[0002] A known luggage lifting device for transporting construction materials to upper floors is disclosed in Patent Document 1. The device in Patent Document 1 is a so-called elevator type with support columns on all four sides and a counterweight that moves a carrier up and down in a space surrounded by the support columns. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 52-152045 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the luggage lifting device in Patent Document 1 has a complex structure, and while it is fine if it fits exactly into the size of an open-ceiling space, the sizes of open-ceiling spaces vary, making it difficult to use.The present invention aims to provide a luggage lifting device that is easy to use in open-ceiling spaces. [Means for solving the problem]

[0005] The present invention solves the above-mentioned problem by providing a luggage lifting device 1 that is characterized by comprising a support pillar 4, a loading platform 2, and a moving device 5, the support pillar 4 being installed across an open-air space 71 from the lower floor to the upper floor and having a slider 3 that can move up and down freely, the loading platform 2 being used to place construction materials 27 and attached to the slider 3, and the moving device 5 being capable of moving the loading platform 2 that has risen to a specified floor from the open-air space 71 to the floor of that floor. [Effects of the Invention]

[0006] The luggage lifting device of the present invention is easier to use when used in an open-ceiling space. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a luggage lifting device according to a first embodiment in which building materials (sashes) are located on the ground floor. [Figure 2] Figure 2 is an explanatory diagram of the slider and the support pillar of Example 1. Figure 2(A) is a diagram illustrating the attachment relationship between the support pillar and the slider with the loading platform and the like removed. Figure 2(B) is a cross-sectional view taken along line AA in Figure 2(A). [Figure 3] FIG. 3 is an explanatory diagram of (pillar installation step 1) to (pillar installation step 3) for fixing the pillars (ladders). [Figure 4] Figure 4 is an explanatory diagram of a fixing jig for fixing a support (ladder) to a building column. Figure 4(A) is an oblique view of the support (ladder) before the fixing jig is attached. Figure 4(B) is an oblique view of the fixing jig. Figure 4(C) is an enlarged view of the lever area. Figure 4(D) is an explanatory diagram of the relationship between the ungrooved ladder grip and the column cross member. Figure 4(E) is an explanatory diagram of the relationship between the grooved ladder grip and the column cross member. Figure 4(F) is an oblique view of the fixing jig placed on the support (ladder). Figure 4(G) is an enlarged view of a portion of Figure 4(F) and is an explanatory diagram of the state of the building column on the right and the L-shaped metal fittings. [Figure 5] FIG. 5 is an explanatory diagram of (post installation step 4). [Figure 6] FIG. 6 is an explanatory diagram of the movement position selection pin used in (support installation process 4). FIG. 6(A) is an external perspective view of the left side of the fixing jig where the movement position selection pin is located. FIG. 6(B) is an enlarged view of the inside of the frame A in FIG. 6(A). FIG. 6(C) is a side view of the vicinity of the movement frame 921. [Figure 7] Figure 7 is an explanatory diagram of (pillar installation step 5). Figure 7(A) is an explanatory diagram of (pillar installation step 5). Figure 7(B) is an explanatory diagram of the relationship between the non-grooved ladder grip and the rod. Figure 7(C) is an explanatory diagram showing the relationship between the grooved ladder grip and the lever. [Figure 8]Fig. 8 is an explanatory diagram of (support installation step 6). Fig. 8(A) is an explanatory diagram of members involved in (support installation step 6), and Fig. 8(B) is a perspective view of the state in (support installation step 6). [Figure 9] Fig. 9 is an explanatory diagram of (pillar installation step 7). Fig. 9(A) is an explanatory diagram of the members involved in (pillar installation step 7). Fig. 9(B) is an explanatory diagram showing how the lever is locked by rotating, and Fig. 9(C) is a perspective view of the state in (pillar installation step 7). [Figure 10] FIG. 10 is an explanatory diagram of the platform and the moving device. [Figure 11] Figure 11 is an explanatory diagram of the first step (loading state). Figure 11(A) is a perspective view of the first step, and Figure 11(B) is an explanatory diagram of the positional relationship between the platform, moving device, slider, etc. during the first step. [Figure 12] Figure 12 is an explanatory diagram of the second step (lifted to the second floor). Figure 12(A) is a perspective view of the second step, and Figure 12(B) is an explanatory diagram of the positional relationship of the platform, moving device, slider, etc. during the second step. [Figure 13] Fig. 13 is an explanatory diagram of the third step (changing the orientation of the luggage). Fig. 13(A) is a perspective view of the luggage during the change of orientation, and Fig. 13(B) is an explanatory diagram of the positional relationship of the platform, moving device, slider, etc. during the third step. [Figure 14] Figure 14 is an explanatory diagram of the fourth step (changing the orientation of the luggage). Figure 14(A) is a perspective view of the luggage during the change of orientation, and Figure 14(B) is an explanatory diagram of the positional relationship of the platform, moving device, slider, etc. during the fourth step. [Figure 15] Fig. 15 is an explanatory diagram of the fifth step (completion of changing the orientation of the luggage). Fig. 15(A) is a perspective view when changing the orientation of the luggage is completed, and Fig. 15(B) is an explanatory diagram of the positional relationship of the platform, moving device, slider, etc. during the fifth step. [Figure 16] FIG. 16 is an explanatory diagram of a modified example of the loading platform. [Figure 17] FIG. 17 is an explanatory diagram of step 1. [Figure 18] FIG. 18 is an explanatory diagram of step 2. [Figure 19]FIG. 19 is an explanatory diagram of step 3. [Figure 20] FIG. 20 is an explanatory diagram of step 4. [Figure 21] FIG. 21 is an explanatory diagram of step 5. [Figure 22] Figure 22 is an explanatory diagram of a modified example of the fixing clamp 99 (fixing jig 9). Figure 22(A) is a rear view, Figure 22(B) is a plan view, Figure 22(C) is a front view, and Figure 22(D) is a side view. DETAILED DESCRIPTION OF THE INVENTION

[0008] In the following description, the same reference numerals in different drawings indicate parts with the same functions, and duplicated descriptions in each drawing may be omitted as appropriate.

[0009] [Example 1] First, an overview of the luggage lifting device 1 of the first embodiment will be described. FIG. 1 is a perspective view of a luggage lifting device 1 of a first embodiment in which a building material 27 (sash) is present on the ground floor.

[0010] (Overview of the luggage lifting device) The luggage lifting device 1 of the first embodiment is a device suitable for installation in an open-ceiling space 71 of a building 7. Below, an overview of the main components of the present invention will be given, followed by a detailed description of each component.

[0011] (building) Building 7 is a building under construction, and since no stairs have been installed, it has an open atrium 71. The open atrium 71 connects the upper and lower floors, and includes various types of open atriums, such as those connecting only the first and second floors, those connecting higher floors such as the first to third floors, and those connecting only the fourth to sixth floors. The building 7 of the first embodiment has an atrium space 71 connecting a ground floor 72, a second floor 73, and a top floor 74. The building pillar 75 is a pillar provided in the building 7. The building pillar 75 in the first embodiment is used to support the ladder-shaped pillar 4 of the luggage lifting device 1. In cases where the pillar 4 supporting the pillar 4 (ladder) of the luggage lifting device 1 is not in an appropriate position, the pillar 4 (ladder) is supported by an appropriate means such as by being fixed to the floor. Between the pair of building columns 75 in the first embodiment, a fixing jig 9 for supporting the support columns 4 (ladder) is attached. The fixing jigs 9 are attached at appropriate intervals to fix the posts 4 (ladders) to the building columns 75. A sufficient number (plurality) of fixing jigs 9 are attached to support the posts 4 (ladders).

[0012] (post) The support pillar 4 of Example 1 is composed of a pair of vertical support members 44 and a number of horizontal support members 45 connecting them. The support pillar 4 of Example 1 has a ladder-like shape. The support pillar 4 is light so as to be easy to install, can support the weight of the building materials 27, and can move the slider 3 up and down freely. The material, structure, and shape of the support pillar 4 are not important as long as it can support the loading platform 2 and the building materials 27 and can be installed in the open-ceiling space 71. The ladder-like support pillar 4 of Example 1 is just one example.

[0013] (cargo bed) The loading platform 2 in Example 1 is loaded with sashes as building materials 27. The loading platform 2 is connected to a slider 3 that slides up and down on a support 4 (ladder), and the slider 3 moves up and down the support 4 (ladder), thereby lifting the building materials 27 (sashes) to an upper floor such as the second floor 73.

[0014] (Slider) The slider 3 is a device that moves up and down while being guided by vertical support members 44 that extend up and down. The slider 3 and the platform 2 are connected by a moving device 5 (moving link). The moving device 5 (moving link) is capable of changing the orientation of the platform 2 relative to the slider 3.

[0015] (Lifting drive unit) The lifting / lowering drive unit 6 in Example 1 is a hoist attached to the top of the support column 4 (ladder) on the top floor 74. A lifting / lowering wire 61 extends from the lifting / lowering drive unit 6 (hoist) and is hung around a lifting pulley 341 provided on the slider 3. The hung lifting / lowering wire 61 is fixed to the cross member 45 of the topmost support column 4 (ladder). This allows the lifting pulley 341 to function as a movable pulley and raise and lower the slider 3. Although a hoist is used as the lifting drive unit 6 in the first embodiment, the lifting drive unit 6 is not limited to a hoist and may be any type of lifting drive unit as long as it can raise and lower the slider 3. For example, the lifting drive unit 6 may be a motor that rotates a pinion gear that meshes with a rack provided in the vertical direction of the support column 4.

[0016] The above is an overview of the luggage lifting device 1 of Example 1. The luggage lifting device 1 includes, as main components, a support column 4 (ladder), a platform 2, a slider 3, a lifting drive unit 6 (hoist), and a moving device 5 (moving link) not described above.

[0017] The components of the luggage lifting device 1 will be described in detail below. (Support and slider) 2A and 2B are explanatory diagrams of the slider 3 and the support pillar 4 of the first embodiment. Fig. 2A is a diagram illustrating the attachment relationship between the support pillar 4 and the slider 3, with the platform 2 and the like removed. Fig. 2B is a cross-sectional view taken along line AA in Fig. 2A.

[0018] (Overall structure of the slider) The slider 3 has a pair of vertical frames 33 that are wider than the width of the support column 4 (ladder). The vertical frames 33 are located outside the vertical support columns 44 on both sides of the ladder-like support column 4. The left and right vertical machine frames 33 are rigidly constructed, with a lower machine frame 36, a lower intermediate machine frame 35, an upper intermediate machine frame 34, and an upper machine frame 32 attached from below. Although the moving device 5 (moving link) is not shown, a support side rotating shaft 51 that rotates the slider 3 side of the moving device 5 (moving link), which will be described later, is attached between the lower intermediate machine frame 35 and the upper intermediate machine frame 34. The lower intermediate machine frame 35 and the upper intermediate machine frame 34 play a role in supporting the platform 2 (not shown) via a moving device 5 (moving link) (not shown). An elevating pulley 341 is attached to the upper part of the upper intermediate machine frame 34. An elevating wire 61 is wound around the elevating pulley 341. The elevating wire 61 is wound around an elevating drive unit 6 (hoist) and lifts the entire slider 3 to the upper floor. The slider 3 has an upper frame 32 attached to the top.

[0019] (Structure of the support) 2(B), the support 4 has vertical support members 44 provided on the left and right sides. The vertical support members 44 have a U-shape with an opening on the outside.

[0020] (Lower and upper machine frames) The lower frame 36 and the upper frame 32 are structured to allow the slider 3 to slide relative to the vertical support members 44. Since the lower frame 36 and the upper frame 32 have the same structure, only the upper frame 32 will be described and a description of the lower frame 36 will be omitted. 2(B), a lateral vibration prevention roller rotation shaft 3211 is attached to the upper machine frame 32. The lateral vibration prevention roller rotation shaft 3211 extends in the front-rear direction, and has a lateral vibration prevention roller 321 attached to its end. The lateral vibration prevention roller 321 abuts against a lateral vibration prevention roller abutment surface 43 on the inner front surface of the support column 4, thereby allowing the slider 3 to move up and down without swinging left and right.

[0021] Behind the upper frame 32 is the vertical frame 33 of the slider 3. A longitudinal anti-sway roller rotation shaft 3311 is attached to the vertical frame 33. A longitudinal anti-sway roller 331 is attached to the end of the longitudinal anti-sway roller rotation shaft 3311, facing the inside of a vertical support member 44 whose outer surface forms an opening 41. The longitudinal anti-sway roller 331 abuts against a longitudinal anti-sway roller abutment surface 42 on the rear side of the inner surface of the U-shaped vertical support member 44, thereby enabling the slider 3 to move up and down without swinging forward or backward.

[0022] In addition, in the cross-sectional view of Figure 2 (B), the support side rotation shaft 51 of the moving device 5 (moving link) attached between the upper intermediate machine frame 34 and the lower intermediate machine frame 35 below the upper machine frame 32 is visible.

[0023] (Installation of the fixture) FIG. 3 is an explanatory diagram of (pillar installation step 1) to (pillar installation step 3) for fixing the pillar 4 (ladder). In (pillar installation process 1), the pillars 4 (ladders) are placed between a pair of building pillars 75 facing the atrium space 71. In (pillar installation process 2), the fixing jig 9 is placed on the pillar cross member 45. As will be explained later, (pillar installation process 2) is a process in which the grooveless ladder gripper 93 and the grooved ladder gripper 94 of the fixing jig 9 are placed on the pillar cross member 45. In (pillar installation process 3), the left L-shaped metal fitting 92 fixed to the fixing jig 9 is abutted against the left building pillar 75, and the pillar abutment projection 924 is abutted against the inner surface 751 of the vertical pillar 44. This temporarily fixes the positions of the left building pillar 75 and the left vertical pillar 44.

[0024] (Details of (Support Installation Process 1) to (Support Installation Process 3)) Figure 4 is an explanatory diagram of the fixing jig 9 that fixes the support 4 (ladder) to a building column 75. Figure 4(A) is a perspective view of the support 4 (ladder) before the fixing jig 9 is attached, and shows (support installation process 2). After the support 4 (ladder) is installed in an appropriate position for fixing in (support installation process 1), the fixing jig 9 is placed on the support 4 (ladder) in (support installation process 2). 4(B) is a perspective view of the fixing jig 9. The non-grooved ladder grip 93 and the grooved ladder grip 94 are firmly attached to the temporary crosspiece 91, which is the main component of the fixing jig 9, by welding or the like. Two spaced apart non-grooved ladder grips 93 are arranged on the temporary rung 91. As shown in Figure 4(C), the grooved ladder grip 94 is located near the lever 98 and is installed close to the non-grooved ladder grip 93. At the stage when the fixing jig 9 is placed on the support 4 (ladder) in (support installation step 2), the lever 98 is in an upright position as shown in the drawing.

[0025] The fixture 9 is placed on the horizontal support member 45 at an appropriate position on the support (ladder) 4. A non-grooved ladder gripper 93 and a grooved ladder gripper 94 are placed on the horizontal support member 45. Figures 4(D) and 4(E) show this state. The ladder grip 93 without grooves has a rod-through hole 942 in the center. The rod-through hole 942 is a hole through which the rod 95 shown in Fig. 4(B) passes. The ladder grip 94 with grooves does not have a rod-through hole 942, but the lever-through groove 941 shown in Fig. 4(E) functions as a groove through which the rod 25 passes.

[0026] The L-shaped metal fittings 92 are components that abut against the side and back of the building column 75, and are L-shaped so as to abut against the side and back of the building column 75. When the fixing jig 9 is placed on the horizontal support member 45, it is placed on the horizontal support member 45 so that the L-shaped metal fitting 92 abuts against the building column 75 on the left shown in FIG. 4(F).

[0027] FIG. 4(G) is an enlarged view of a portion of FIG. 4(F), and is an explanatory view of the state of the building pillar 75 and the L-shaped metal fitting 92 on the right. In Figure 4(F), the fixing jig 9 has the left L-shaped metal fitting 92 pressed against the left building column 75. The fixing jig 9 has a support column abutment protrusion 924 on its facing surface. The support column abutment protrusion 924, which is not visible in Figure 4(F) because it is hidden by the left vertical support column 44, is in a state of abutting against the inside of the left vertical support column 44, and the support column 4 (ladder) is positioned relative to the left building column 75. On the other hand, as shown in FIG. 4(G), the right building pillar 75 and the right L-shaped metal fitting 92 are spaced apart at the time of (pillar installation step 2).

[0028] (Outline of (Support installation process 4)) 5 is an explanatory diagram outlining (pillar installation process 4). (Pillar installation process 4) is a process in which the movement position selection pin 922 is first pulled toward you to release the lock, and then moved toward the right. In conjunction with this operation, the right L-shaped metal fitting 92 moves toward the right building pillar 75 and firmly abuts against it.

[0029] (Details of (Support installation process 4)) 6A and 6B are explanatory diagrams of the movement position selection pin 922 used in (support installation process 4). Fig. 6A is an external perspective view of the left side of the fixing jig 9 where the movement position selection pin 922 is located. Fig. 6B is an enlarged view of the inside of the frame A in Fig. 6A. The movement position selection pin 922 is located at the left end of the fixing jig 9 and serves to move the right L-shaped metal fitting 92 at the right end. As shown in FIG. 6(B), the interior of the temporary horizontal crosspiece 91 is hollow and a movable plate member 923 is contained within it over almost the entire length of the temporary horizontal crosspiece 91. The movement position selection pin 922 can move the L-shaped metal fitting 92 at the right end by moving this movable plate member 923. The fixing structure of the movement position selection pin 922 and the movable plate member 923 is shown in the cross-sectional views of the movable frame 921 in FIGS. 6(B) and 6(Ba). Fixed pin movement grooves 926 are provided on the top and bottom surfaces of the temporary horizontal crosspiece 91 near the movable frame 921 of the temporary horizontal crosspiece 91.

[0030] A movable frame 921 is movably fitted around the outer periphery of the temporary horizontal crosspiece 91, and fixed pins 925 are fastened from above, passing through fixed pin movement grooves 926 provided on the upper part of the movable frame 921, passing through the temporary horizontal crosspiece 91 and the fixed pin movement grooves 926 on the lower side, and penetrating the lower part of the movable frame 921. Therefore, the movable frame 921 can move within the range provided by the fixed pin movement grooves 926. The movable frame 921 is integrated with a movable plate member 923 provided in the hollow part of the temporary horizontal crosspiece 91 by the fixed pins 925, and when the movable frame 921 moves, the movable plate member 923 also moves in conjunction with it.

[0031] A row of L-shaped metal fitting position fixing holes 929 is drilled on the front surface of the temporary horizontal crosspiece 91, and the tip of the moving position selection pin 922 fits into one of the L-shaped metal fitting position fixing holes 929 to prevent the moving frame 921 from moving in that position. The moving position selection pin 922 is a member that can be pulled toward you, as shown by the arrows in Figures 6(A) and 6(B). By pulling it toward you, its tip comes out of the L-shaped metal fitting position fixing hole 929, releasing the lock and allowing left and right movement. The worker grasps the moving position selection pin 922 and moves the right L-shaped metal fitting 92 via a moving plate member 923 that moves in conjunction with the moving frame 921. The worker then moves the right L-shaped metal fitting 92 until it abuts against the right building column 75 and fits the moving position selection pin 922 into the L-shaped metal fitting position fixing hole 929 there. The thickness and spacing of the building columns 75 are generally standardized, and the number and positions of the movement position selection pins 922 are determined taking into consideration the standardized thickness of the building columns 75, etc.

[0032] (Fixed by (Support installation process 1) to (Support installation process 4)) Through the above (pillar installation process 1) to (pillar installation process 4), the fixing jig 9 is connected to the building pillars 75 on the left and right via the fixing jig 9, and is fixed so as not to move in the front-rear and left-right directions.

[0033] (Fixing fixtures and ladders) It has been explained that in (Support Installation Step 1) to (Support Installation Step 4), the fixing jig 9 is firmly fixed to the building columns 75 on the left and right. It has also been explained that the support 4 (ladder) is positioned by the inner visible surface of the left support vertical member 44 abutting against the support abutment protrusion 924. However, the fixing jig 9 and the right support vertical member 44 are not fixed together, and are still unstable. (Support installation process 5) to (support installation process 7) are processes for firmly fixing the fixing jig 9 and the vertical support member 44 together.

[0034] (Details of (Support installation process 5)) FIG. 7 is an explanatory diagram of (Support Installation Step 5). FIG. 7(A) is an explanatory diagram of the main components of (Support Installation Step 5). As mentioned above, the unslotted ladder grip 93 and the grooved ladder grip 94 are welded and attached to the front surface of the temporary rung 91. FIG. 7(B) is an explanatory diagram of the relationship between the unslotted ladder grip 93 and the rod 95. FIG. 7(C) is an explanatory diagram showing the relationship between the grooved ladder grip 94 and the lever 98. As shown in FIGS. 7(B) and 7(C), the unslotted ladder grip 93 and the grooved ladder grip 94 have a rod-through hole 942 in the approximate center, and the rod 95 is supported by the rod-through hole 942 and is configured to slide left and right. In addition, the lever 98 is firmly fixed to the rod 95 at approximately the left-right center position of the rod 95 by welding or the like. (Support Installation Step 5) is a process of rotating the lever 98, which was initially upright, horizontally. 7C, the lever 98 can pass through the rod-through hole 942. For this reason, the rod-through hole 942 is formed to be larger than the diameter of the rod of the lever 98.

[0035] (Details of (Support installation process 6)) FIG. 8 is an explanatory diagram of (pillar installation step 6). FIG. 8(A) is an explanatory diagram of the components involved in (pillar installation step 6). (Pillar installation step 6) is the step in which the horizontal lever 98 is passed through the lever passage groove 941 of the slotted ladder grip 94. After passing through the slotted ladder grip 94, the lever 98 immediately hits the non-slotted ladder grip 93 and is unable to move the rod 95 any further. The lever 98 is positioned in the small gap between the slotted ladder grip 94 and the non-slotted ladder grip 93. 8(B) is a perspective view of the state (post installation step 6). The rod 95 moves to the right with the movement of the lever 98, and the bulge 951 attached to the right end of the rod 95 abuts against the inner visible surface 441 of the right-side vertical post 44. The fixing jig 9 is made to match the structure of the post 4 (ladder), so the position of the gap formed by the grooved ladder grip 94 and the non-grooved ladder grip 93 is designed so that the left vertical post 44 abuts against the post abutment protrusion 924, and the right vertical post 44 is positioned to abut against the bulge 951. The bulge portion 951 is an elastic material such as rubber, and when the lever 98 reaches the position shown in Figure 8(A), it strongly abuts against the vertical support member 44 and deforms, firmly fixing the fixing jig 9 and the support member 4 (ladder).

[0036] (Details of (Support installation process 7)) 9A and 9B are explanatory diagrams of (pillar installation step 7). Fig. 9A is an explanatory diagram of the members involved in (pillar installation step 7). Fig. 9B is an explanatory diagram showing that the lever 98 is locked by rotating, and Fig. 9C is a perspective view of the state of (pillar installation step 7). The lever 98 is rotated from the horizontal direction to the vertical direction through the small gap formed between the grooved ladder grip 94 and the non-grooved ladder grip 93. As a result, the lever 98 cannot move the rod 95, and the bulge 951 at the right end of the rod 95 is maintained in contact with the inner visible surface 441 of the vertical support member 44, thereby locking the lever 98.

[0037] (Summary of (Support Installation Step 5) to (Support Installation Step 7)) As described above, the lever 98 is operated through (pillar installation step 5) to (pillar installation step 7), and the fixing jig 9 and the vertical pillar 44 are firmly fixed together.

[0038] (Loading platform and moving device structure) FIG. 10 is an explanatory diagram of the platform 2 and the moving device 5 (moving link). The loading platform 2 has a simple structure in which an upper frame 21 and a loading section 22 are connected by a pair of vertical frames 23. The loading section 22 is located at the bottom of the loading platform 2 and is provided with a front stop plate 26. The front stop plate 26 prevents building materials 27 (sashes) such as sashes placed on the loading section 22 from falling from the front. There are no stop plates on either the left or right end of the loading section 22. The loading section 22 can load building materials 27 (sashes) that are wider than the width of the loading section 22 on either side. If necessary, the building material 27 (sash) placed on the placement section 22 is fixed with a string or the like.

[0039] A pair of intermediate horizontal frames 24 are attached to the vertical frame 23. A carrier-side shaft support portion 53 is attached between the upper and lower intermediate horizontal frames 24, and a carrier-side rotation shaft 52 extending vertically is provided between them. The end of the moving device 5 (moving link) on the carrier 2 side can rotate the carrier 2 in any direction around the carrier-side rotation shaft 52. The slider 3 side end of the moving device 5 (moving link) is rotatably fixed to a support-side rotating shaft 51 disposed between the upper intermediate machine frame 34 and the lower intermediate machine frame 35. Therefore, the moving device 5 (moving link) can rotate left and right relative to the slider 3.

[0040] (Actual usage) (1st step) Figure 11 is an explanatory diagram of the first step (loading state). Figure 11(A) is a perspective view of the first step, and Figure 11(B) is an explanatory diagram of the positional relationship between the platform 2, the moving device 5, the slider 3, etc. during the first step. The first process is a preparation process, which begins with the process of attaching the support posts 4 (ladders) from the floor below to the upper floor through the atrium space 71. As described above, the temporary crosspieces 91 of the fixing jig 9 are hung between a pair of building columns 75. The support posts 4 are fixed between the building columns 75 by the temporary crosspieces 91, and are then attached through the atrium space 71. Thereafter, the worker 8 assembles the slider 3, the moving device 5, the platform 2, the lifting drive unit 6 (hoist), the lifting wire 61, etc. onto the support 4 (ladder), and the assembly of the luggage lifting device 1 is completed.

[0041] The luggage lifting device 1 of the first embodiment can be disassembled into components and carried into the building 7, and is extremely easy to assemble, resulting in good work efficiency. The first step is a step of loading building materials 27 (sashes) onto the loading platform 2 of the luggage lifting device 1 assembled by a worker 8 on the ground floor 72. The worker 8 rotates the two rotating shafts 52 on the loading platform side and 51 on the support pillar side of the moving device 5 to orient the building materials 27 (sashes) in a direction that makes it easier to load them. After loading the building materials 27 (sashes) onto the loading platform 2, the worker 8 adjusts the orientation of the loading platform 2 using the loading platform side rotation axis 52 and the support side rotation axis 51 of the moving device 5 (moving link) so that the building materials 27 (sashes) can pass through the open space 71 on the second floor 73. When the placement section 22 is oriented so as to form a diagonal line of the open-ceiling space 71, it corresponds to the maximum width of the building material 27 (sash) that can pass through the open-ceiling space 71. The worker 8 adjusts the orientation of the loading platform 2 taking into consideration the width of the building material 27 (sash). Figure 11(A) shows the state after the above preparation process has been completed, where the worker has placed the building material 27 (sash) on the loading section 22 (loading platform 2) and adjusted the orientation of the loading platform 2 so that it can pass through the open space 71.

[0042] (2nd process) Fig. 12 is an explanatory diagram of the second step (state where the platform 2 is lifted to the second floor). Fig. 12(A) is a perspective view of the second step, and Fig. 12(B) is an explanatory diagram of the positional relationship between the platform 2, the moving device 5, the slider 3, etc. during the second step. The second step is a step of passing the loading platform 2 loaded with the building materials 27 (sashes) through the atrium space 71 and lifting it up to a position slightly higher than the floor surface of the second floor 73. When the lifting drive unit 6 (hoist) winds up the lifting wire 61, the platform 2 is guided by the slider 3 and rises up the support 4 (ladder).

[0043] 12(B) indicates the direction in which the direction of the loading platform 2 is changed in (the third step). Since the support 4 (ladder) in Example 1 is installed close to the left side of the open space 71, there is a wide space on the right side of the support 4 (ladder) that is suitable for passing the building materials 27 (sash). Therefore, the moving device 5 (moving link) faces rightward so that the loading platform 2 passes through this wide space side.

[0044] The position of the construction material 27 (sash) in the second process shown in Figure 12(B) is in the atrium space 71. If the worker 8 attempts to carry the construction material 27 (sash) to the second floor 73 in this state, he will be in a dangerous position leaning over the atrium space 71. There is a risk that the worker 8 will lose his balance and drop the construction material 27 (sash), causing an accident, or in some cases, the worker 8 may fall to the floor below.

[0045] (3rd step) Figure 13 is an explanatory diagram of the third step (changing the orientation of the building material 27). Figure 13(A) is a perspective view of the building material 27 (sash) during the process of changing its orientation, and Figure 13(B) is an explanatory diagram of the positional relationship between the loading platform 2, the moving device 5, the slider 3, etc. during the third step. The building materials 27 (sashes) in this third process (Figure 13(B)) are closer to the second floor 73 than in the second process (Figure 12(B)), but the majority of the building materials 27 (sashes) are still above the open space 71.

[0046] (4th step) Figure 14 is an explanatory diagram of the fourth step (changing the orientation of the construction material 27). Figure 14(A) is a perspective view of the construction material 27 during the process of changing its orientation, and Figure 14(B) is an explanatory diagram of the positional relationship between the platform 2, moving device 5, slider 3, etc. during the fourth step. Figure 14(B) shows the support-side rotation axis 51 and the platform-side rotation axis 52, which are not normally visible. When the fourth process is reached, most of the building materials 27 (sashes) are positioned on the second floor 73. The moving device 5 (moving link) rotates around the support-side rotation axis 51, and the moving device 5 (moving link) becomes displaced to the left.

[0047] (5th step) Figure 15 is an explanatory diagram of the fifth step (completion of changing the orientation of the building material 27). Figure 15(A) is a perspective view when changing the orientation of the building material 27 (sash) is completed, and Figure 15(B) is an explanatory diagram of the positional relationship of the loading platform 2, moving device 5, slider 3, etc. during the fifth step. Figure 15(B) shows the loading platform side rotation axis 52, which is normally invisible. The worker 8 rotates the loading platform side rotation shaft 52 to change the orientation of the building materials 27 (sashes) so that all of the building materials 27 (sashes) are on the second floor 73. The worker 8 can lower the construction material 27 (sash) onto the second floor 73 without leaning into the atrium space 71.

[0048] (Transporting luggage to lower and upper floors) In the state shown in FIG. 15, the worker 8 can place the construction materials 27 on the empty loading platform 2 on the second floor 73 and transport the construction materials 27 to the ground floor 72. The worker 8 can safely load the building materials 27 (sashes) onto the loading platform 2 without leaning out into the atrium space 71. In addition, since there is a loading platform 2 in front of the construction materials 27 when loading, even if the worker 8's hand slips and the construction materials 27 drop, the loading platform 2 prevents the construction materials 27 from falling into the open space 71. At most, the dropped construction materials 27 will fall onto the second floor 73. The loaded building materials 27 are moved into the atrium space 71 using the moving device 5, and can be lowered to the ground floor 72 or transported to the top floor 74.

[0049] (Summary of effects of Example 1) Example 1 has a moving device 5 (moving link) that connects the loading platform 2 and the support 4 (ladder). The loading platform 2 can be moved from the open-ceiling space 71 to above the floor by the moving device 5 (moving link), allowing the worker 8 to perform loading and unloading work without leaning into the open-ceiling space 71. Example 1 contributes to the safety of the worker 8. In the first embodiment, the mounting section 22 is connected to the moving device 5 (moving link) at approximately the center of the left-right width, so that the mounting section 22, which rotates on the support-side rotation shaft 51, is highly maneuverable. The construction materials 27 can be lifted, loaded, and unloaded even in the narrow open-ceiling space 71. Furthermore, since the moving device 5 (moving link) of the first embodiment has the platform-side rotation shaft 52, the placement portion 22 can be oriented in any direction.

[0050] The luggage lifting device 1 of the first embodiment can be transported to the site in several parts, such as a platform 2, a slider 3, a support 4 (ladder), a moving device 5 (moving link), and a lifting drive unit 6 (hoist). Because the luggage lifting device 1 of the first embodiment has a small number of parts, it can be installed more efficiently and is easy to use. Moreover, the first embodiment includes a fixing jig 9 for attaching the support 4 (ladder) to the building pillar 75.

[0051] The fixing jig 9 of Example 1 is equipped with a movable frame 921 and a movement position selection pin 922 that can press and fix a pair of L-shaped metal fittings 92 onto the surface of the building column 75 facing the support column 4 (ladder), and therefore the L-shaped metal fittings 92 can be moved until they abut the building column 75. The movable and fixable L-shaped metal fittings 92 are easy to use and allow the temporary crosspiece 91 to be installed without damaging the building column 75.

[0052] In the fixing jig 9 of the first embodiment, a non-grooved ladder grip 93 and a grooved ladder grip 94 are welded to a temporary horizontal crosspiece 91. The non-grooved ladder grip 93 and the grooved ladder grip 94 are fixed to the support 4 (ladder) The rod 95 is placed on the horizontal support member 45 of the ladder gripper 93. The rod 95 is passed through the rod through-holes 942 of the unslotted ladder gripper 93 and the slotted ladder gripper 94 and is supported so as to be able to rotate freely. In the fixing jig 9 of Example 1, the positions of the unslotted ladder gripper 93 and the slotted ladder gripper 94 are cleverly arranged. The lever 98 attached to the rod 95 can be moved into the gap between the unslotted ladder gripper 93 and the slotted ladder gripper 94 through the lever through-hole 941 of the slotted ladder gripper 94. At this time, the bulge 951 is in strong contact with the vertical support member 44, and simply rotating the lever 98 in this state will lock the ladder gripper. The presence of the fixing jig 9 makes it possible to prevent the support 4 (ladder) from falling over.

[0053] By such a device of the first embodiment, the support 4 (ladder) is prevented from moving left and right, forward and backward, and up and down, and is kept upright stably. Since the mounting section 22 is connected to the moving device 5 (moving link) at approximately the center of the left-right width, the mounting section 22, which rotates on the support-side rotating shaft 51, is highly maneuverable. Construction materials 27 can be lifted and loaded / unloaded even in a narrow atrium.

[0054] [Example 2] Example 2 is a modified example of the loading platform 2. Figure 16 is an explanatory diagram of a modified example of the loading platform 2. The loading platform 2 has a loading section 22 on which building materials 27 such as sashes are placed. The loading section 22 has a front stop plate 26 at the front to prevent the building materials 27 (sashes) from sliding off. A protrusion 221 is provided in the middle of the loading platform 2, which is designed to prevent the sashes from colliding with each other and being damaged when two shoji screens are placed on the platform, as will be described later, and to prevent the sash placed at the back from sliding forward when the sash at the front is loaded or unloaded.

[0055] The placing section 22 is supported by a pair of left and right vertical frames 23, and an extendable upper frame 211 is attached to the upper end of the vertical frames 23. Belt loops 282 are attached to both ends of the extendable upper frame 211, and when the extendable upper frame 211 is extended or contracted, the pair of belt loops 282 also move accordingly.

[0056] The fixed belt 28 is passed through the belt loop 282, and a buckle 281 is attached to the end of the fixed belt 28.

[0057] A pair of platform-side shaft support parts 53 for supporting the aforementioned moving device 5 (moving link) is attached to the middle part of the vertical frame 23. The platform 2 is supported by the moving device 5 (moving link) (not shown) on the support posts 4 (ladder) and moves up and down. The lifting mechanism of the loading platform 2 is the same as that of the first embodiment, and the platform 2 is raised and lowered inside the building 7 by a lifting drive unit 6 (hoist).

[0058] The following describes the steps for loading the building materials 27 (sashes). (Step 1) Preparation Figure 17 is an explanatory diagram of step 1. Step 1 is a procedure for extending and retracting the telescopic upper frame 211 to match the width of the building material 27 (sash). At the step 1 stage, it is not necessary to extend and retract the telescopic upper frame 211 exactly to the width of the building material 27 (sash); rather, it is easier to carry out the subsequent steps if the telescopic upper frame 211 is extended to a width larger than the width of the building material 27 (sash). The structure of the telescopic upper frame 211 is such that a smaller rectangular rod is stored at both ends of a hollow rectangular rod, and the length of the telescopic upper frame 211 can be adjusted by pulling out or retracting the smaller rectangular rod. Belt loops 282 are fixed to both ends of the extendable upper frame 211, and the fixed belt 28 extends and contracts in conjunction with the extension and contraction of the extendable upper frame 211.

[0059] (Step 2) Loading of building materials 27 (sashes) FIG. 18 is an explanatory diagram of step 2. Step 2 is the procedure for loading the first building material 27 (sash). The building material 27 (sash) is loaded so that it fits into the ridges 221 provided on the loading section 22. The ridges 221 are useful for stabilizing the building material 27 (sash) while it is being raised or lowered, and also for preventing the first building material 27 (sash) from sliding on the loading section 22 when there is no second building material 27 (sash) in front of it, ensuring stability during loading and unloading. The telescopic upper frame 211 is adjusted so that the pair of belt loops 282 hold the building material 27 (sash) from both sides.

[0060] (Step 3) Fixing the first piece of building material 27 (sash) Figure 19 is an explanatory diagram of step 3. Step 3 is the procedure for fixing the first building material 27 (sash). There are two fixing belts 28. The first building material 27 (sash) is fastened and fixed by the first fixing belt 28 connected by a buckle 281.

[0061] (Step 4) Loading the second piece of building material 27 (sash) 20 is an explanatory diagram of step 4. The second building material 27 (sash) is placed on the placement section 22. The lower end of the building material 27 (sash) is placed so as to abut against the front stop plate 26, and the building material 27 (sash) is loaded so that the lower end does not move during lifting.

[0062] (Step 5) Fixing the second piece of building material 27 (sash) 21 is an explanatory diagram of step 5. The second piece of the loaded building material 27 (sash) is fastened by the buckle 281 of the second fixing belt 28 and firmly fixed. The first building material 27 (sash) and the second building material 27 (sash) are firmly fixed to each other with fixing belts 28, so they do not move relative to each other even when vibrating when being raised or lowered, and no scratches or the like occur.

[0063] (Summary of Effects of Example 2) The loading section 22 is provided with a protrusion 221 that separates the first building material 27 (sash) from the second building material 27 (sash), so the building materials 27 (sash) do not come into contact with each other and scratches do not occur due to vibrations during lifting and lowering. In addition, since the first building material 27 (sash) and the second building material 27 (sash) are each fixed with separate fixing belts 28, when loading and unloading the second building material 27 (sash), one can concentrate on loading and unloading without having to worry about the first building material 27 (sash) slipping off.

[0064] [Example 3] Example 3 is a modified example of a fixing clamp 99 (fixing jig 9) that erects a support 4 (ladder). Figure 22 is an explanatory diagram of a modified example of the fixing clamp 99 (fixing jig 9). Figure 22(A) is a rear view. Fixing jig insertion holes 912 are provided near the left and right ends of the temporary horizontal rail 91. When viewed from the back, ladder supports 96 that support the horizontal support members 45 of the support posts 4 (ladders) can be seen protruding at the top and bottom. The vertical width of the ladder supports 96 is greater than the vertical width of the temporary horizontal rail 91.

[0065] Figure 22(B) is a plan view. Figure 22(A) shows the fixing clamps 99 (fixing jig 9), which were not shown for the purpose of explanation. The fixing clamps 99 are members that fix the temporary cross beams 91 to the building columns 75 on the left and right. The positions of the building columns 75 may vary in thickness or slightly in position depending on the design of the building 7. The position of the fixing clamps 99 can be moved to accommodate differences in the building columns 75 specific to each building.

[0066] (Right fixing clamp 99) The temporary horizontal beam 91 is a hollow frame body with both ends open. The right fixing jig insertion hole 912 shown in Figure 22(A) opens at the position indicated by the two-dot chain line in Figure 22(B). (Note that the left fixing jig insertion hole 912 also opens at the position corresponding to Figure 22(A).) The fixing jig insertion hole 912 is a hole for inserting the pressing rod 998 of the fixing clamp 99 (fixing jig 9). The pressing rod 998 of the fixing clamp 99 is attached to the lower end of a guide rod 994. The guide rod 994 supports a threaded rod 992 via a guide link 995. The threaded rod 992 has a pressing portion 997 attached to its lower end and a fixed lever 991 attached to its upper end. When the fixed lever 991 is rotated, it rotates the threaded rod 992 and raises and lowers the guide link 995. When the fixed lever 991 is rotated in the direction in which the guide link 995 is lowered, the distance between the pressing rod 998 and the pressing portion 997 is reduced, firmly fixing the building column 75 and the temporary crosspiece 91 together.

[0067] (Adjust the position of the right fixing clamp 99) The position of the right fixing clamp 99 must be adjusted depending on the thickness and position of the building column 75. The position of the fixing clamp 99 can be moved within the range of the left-right width of the fixing jig insertion hole 912, and when moved to the farthest left, the building column 75 will be in a position that covers the top of the fixing jig insertion hole 912. Although not shown, cushioning material is attached to the top surface of the temporary crosspiece 91 in the area where it is expected to come into contact with the building column 75, so that the building column 75 will not be damaged by the pressure of the fixing clamp 99.

[0068] (Left fixed clamp 99) As described above, the temporary horizontal crosspiece 91 is a hollow frame body with both ends open. In the left fixing clamp 99 of Example 3, the pressing rod 998 is inserted into the hollow portion of the temporary horizontal crosspiece 91 from the end opening 913 of the temporary horizontal crosspiece 91. A positioning L-shaped rib 927 is fixed to the upper surface of the temporary horizontal crosspiece 91, and the building column 75 is positioned by abutting against the positioning L-shaped rib 927.

[0069] The position of the right fixing clamp 99 is adjusted according to the position of the positioned left fixing clamp 99.

[0070] (When the distance between the pair of building pillars on the left and right is narrow) If the distance between the pair of left and right building columns 75 is narrow and the fixing clamp 99 cannot be attached as described above, the left fixing jig insertion hole 912 is used. As explained above (for the right fixing clamp 99), the pressing rod 998 is inserted through the left fixing jig insertion hole 912. The building column 75 is positioned so as to abut against the positioning L-shaped rib 927 and is fixed by the fixing clamp 99.

[0071] As described above, the temporary crosspiece 91 installed between a pair of left and right building pillars 75 can be installed by adjusting the installation position of the fixing clamp 99, regardless of differences in the thickness or spacing of the building pillars 75 of each building 7 to be installed.

[0072] (Installation of support 4 (ladder)) Figure 22(C) is a front view. The support 4 (ladder) is positioned by a pair of ladder positioning ribs 97 attached to the front of the temporary crosspiece 91. At this time, the support 4 (ladder) and the ladder positioning ribs 97 are installed in a positional relationship where the inner peripheral visible surface of the support vertical member 44 abuts against the ladder positioning ribs 97, as shown in the plan view of Figure 22(B).

[0073] (Post cross member 45) 22(D) is a side view. The horizontal support members 45 (ladder crosspieces) are placed so that they rest in the recesses of the pair of ladder supports 96. In this way, the temporary horizontal support members 91 are supported by the support posts 4 (ladders).

[0074] (Summary of Effects of Example 3) The structure of the temporary crosspiece 91, fixing clamp 99, and ladder support 96 that are installed between the support 4 (ladder) and the building column 75 is very simple. The only operations required for installation are to position the fixing clamp 99 and rotate the fixing lever 991 to install the temporary crosspiece 91 on the building column 75, which allows for high work efficiency. The third embodiment contributes to improving costs and work efficiency.

[0075] The above has described in detail embodiments and modifications of the present invention with reference to the drawings, but the specific configuration is not limited to these embodiments, and the present invention also includes design changes and the like within the scope of the present invention that do not deviate from the gist of the present invention. Furthermore, the above-described embodiments and modifications can be combined by utilizing each other's techniques, as long as there are no particular contradictions or problems in the purpose, configuration, etc. [Explanation of symbols]

[0076] 1. Luggage lifting device 2 Cargo bed 21 Upper frame 211 Extendable upper frame 22 Placement section 221 Projections 23 Vertical Frame 24 Intermediate horizontal frame 26 Front stop plate 27 Building materials (sashes) 28 Fixation Belt 281 Buckle 282 Belt loop 3 Slider 32 Upper frame 321 Left and right anti-vibration roller 3211 Left and right anti-vibration roller rotating shaft 33 Vertical machine frame 331 Front and rear anti-vibration roller 3311 Front and rear anti-sway roller rotating shaft 34 Upper intermediate frame 341 Elevating Pulley 35 Lower intermediate frame 36 Lower machine frame 4. Ladders 41 Opening 42 Front and rear anti-sway roller contact surface 43 Left and right anti-sway roller contact surface 44 Post vertical member 441 Inner surface prospective 45 Post cross member 5. Moving device (moving link) 51 Pillar side rotation axis 52 Cargo side rotation shaft 53 Bed side shaft support 6. Lifting drive unit (hoist) 61 Lifting wire 7 Building 71 Open-ceiling space 72 Ground Floor 73 2nd floor 74 Top Floor 75 Building Pillar 8. Workers 9 Fixture 91 Temporary crosspiece 912 Fixture insertion hole 913 End opening 92 L-shaped bracket 921 Moving Frame 922 Movement position selection pin 923 Moving plate material 924 Pillar contact protrusion 925 fixing pin 926 Fixed pin movement groove 927 Positioning L-shaped rib 929 L-shaped bracket position fixing hole 93 Grooved ladder grip 94 Grooved ladder grip 941 Lever groove 942 Rod through hole 95 Rod 951 Bulge 96 Ladder Support 97 Ladder positioning rib 98 Lever 99 Fixed Clamp 991 Fixed lever 992 Threaded rod 994 Guide rod 995 Guide Link 997 Pressing part 998 Pressure rod

Claims

[Claim 1] Equipped with a support, a loading platform and a moving device, The support pillar is installed across the open-ceiling space from the lower floor to the upper floor, and has a slider that can move up and down freely. The loading platform is used to carry construction materials and is attached to a slider. The moving device can move the platform that has risen to a predetermined floor from the atrium space to the floor of that floor. A luggage lifting device characterized by:

Images