Loading equipment
The loading device uses guide rails and a lifting mechanism to prevent collisions during equipment transport into the elevator shaft, ensuring safe and efficient delivery of heavy items.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- FUJITEC CO LTD
- Filing Date
- 2024-11-07
- Publication Date
- 2026-05-19
AI Technical Summary
Existing loading devices struggle to guide heavy equipment into the elevator shaft without colliding with the walls, especially when there is insufficient clearance between the equipment width and the shaft opening.
A loading device with a main body, detachable guide rails, and a lifting mechanism that includes a pair of guide rails to guide the trolley and a lifting means to prevent collision by adjusting the rail spacing and using a traction means to pull the trolley into the shaft.
The device effectively guides the trolley into the elevator shaft, preventing collisions and ensuring smooth transportation of heavy equipment to the bottom of the hoistway.
Smart Images
Figure 2026082345000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a loading device, and more particularly to a loading device for loading various devices into the bottom (pit) of an elevator hoistway.
Background Art
[0002] In the bottom of the elevator hoistway, in addition to the hoisting machine which is a component of the elevator, there are various devices such as a working device (Japanese Patent No. 3037759) for the installation work of guide rails and a maintenance device (Japanese Patent No. 6741373) for maintaining guide rails, which are used in the installation work of the elevator, and various devices are loaded in various scenes.
[0003] Such devices are generally heavy, and since the bottom surface of the hoistway is considerably deep from the landing floor of the lowest floor which serves as the loading entrance, it is difficult to carry them in manually. For this reason, a loading device for loading such devices into the pit is disclosed in Patent Document 1.
[0004] The loading device described in Patent Document 1 (hereinafter referred to as "conventional loading device") includes legs 8 installed at the bottom of the hoistway 2, a first receiving base 7 supported by the legs 8 and installed at a position substantially equal to the floor surface of the landing 1, a floor plate 9 detachably attached at a position to cover the opening 7A of the receiving base 7, and a winch 6 installed above the floor plate 9 (Summary of Patent Document 1, FIG. 2).
[0005] In the conventional loading device, a cart 4 on which a hoisting machine 5 is mounted is run from the landing 1 and enters onto the floor plate 9 in the hoistway 2 through the hoistway opening (FIGS. 1 and 2 of Patent Document 1). The hoisting machine 5 located on the floor plate 9 is slightly lifted by a rope 13 (FIG. 2 of Patent Document 1) hooked on the hook 6A of the winch 6. Then, after removing the cart 4 and the floor plate 9 (FIG. 3 of Patent Document 1), the winch 6 is activated to lower the hoisting machine 5 to the bottom of the pit 3 of the hoistway 2, and the loading is completed (FIG. 4 of Patent Document 1).
[0006] According to the conventional loading device described above, the loading is completed by driving the trolley 4 from the landing 1, moving it onto the floor plate 9 in the elevator shaft 2, and then lifting it with the winch 6 and lowering it to the bottom of the pit 3 in the elevator shaft 2. Therefore, even if the equipment to be loaded is considerably heavy, it can be loaded. [Prior art documents] [Patent Documents]
[0007] [Patent Document 1] Japanese Patent Publication No. 2001-199649 [Overview of the project] [Problems that the invention aims to solve]
[0008] However, it is difficult to move a considerably heavy object in a straight line towards the target position using a trolley, and it will inevitably meander to some extent. Therefore, if there is insufficient clearance between the width of the landing opening (the opening of the elevator shaft) and the width of the equipment being brought in, there is a risk that the equipment may collide with the wall of the elevator shaft opening and be damaged.
[0009] In view of the above-mentioned problems, the present invention aims to provide a loading device that can load the equipment to be loaded into the bottom of the elevator shaft without colliding with the walls of the hoistway opening as much as possible, even if there is little clearance in the width of the equipment to be loaded relative to the width of the landing. [Means for solving the problem]
[0010] To achieve the above objective, the loading device according to the present invention is a loading device for loading equipment having a trolley or equipment placed on a trolley from the elevator landing through the opening of the hoistway to the bottom of the hoistway, and is characterized by comprising: a main body installed at the bottom of the hoistway; a pair of guide rails detachably provided on the main body, which, when attached, extend to the landing and guide the wheels of the trolley; and a lifting means for raising and lowering the equipment that has entered the hoistway guided by the pair of guide rails.
[0011] Furthermore, the pair of guide rails is configured to allow the spacing between them to be changed to match the spacing between the wheels of the bogie.
[0012] Alternatively, the device is characterized by having a traction means for pulling the trolley in the direction of entry when the device is brought into the elevator shaft.
[0013] Alternatively, the lifting means is characterized by including a pair of chain blocks provided in front of or to the left and right of the equipment that has entered the elevator shaft.
[0014] Furthermore, the main body is characterized in that multiple rods are assembled in a rectangular parallelepiped shape to form a tower, and the trolley enters the main body which forms the tower through an entrance formed by four rods assembled in a rectangular shape when viewed from the landing side, and each of the pair of guide rails is stretched between two rods that are perpendicular to the direction in which the trolley enters and are arranged parallel to each other.
[0015] Furthermore, the pair of guide rails are guide rails that are removed when the equipment is lifted by the lifting means, and the lifting means is a means for suspending the equipment to the bottom of the elevator shaft by passing it between the two rod members when the pair of guide rails have been removed. [Effects of the Invention]
[0016] According to the loading device of the present invention having the above configuration, the wheels are guided by the pair of guide rails that are partially extended across the landing, allowing the trolley to enter the elevator shaft. As a result, when the equipment having the trolley or the equipment loaded on the trolley passes through the opening of the elevator shaft, the trolley is guided by the pair of guide rails, thus preventing it from meandering as much as possible. Consequently, it is possible to prevent the equipment having the trolley or the equipment loaded on the trolley from colliding with the wall of the opening of the elevator shaft as much as possible.
[0017] Also, with the device that has entered the hoistway suspended by the lifting means, the pair of guide rails detachably provided on the main body are removed, and the device is suspended by the lifting means, whereby the device can be carried into the bottom of the hoistway.
Brief Description of the Drawings
[0018] [Figure 1] (a) is a perspective view and (b) is a front view of an aerial work platform which is an example of a device to be carried by the carrying device according to the embodiment. [Figure 2] It is a perspective view of the above carrying device. [Figure 3] (a) is a perspective view of a guide rail spanned between a pair of single pipe columns constituting the main body of the above carrying device, (b) is a perspective view of the guide rail viewed from an angle different from (a), (c) is a view of (b) viewed in the direction of arrow B, and (d) is a front view of the leg portion of the guide rail. [Figure 4] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 5] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 6] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 7] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 8] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 9] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 10] It is a view showing one step of the carrying procedure of the aerial work platform from the boarding place to the bottom of the hoistway by the above carrying device. [Figure 11]It is a diagram showing one step of the loading procedure from the boarding place of the above-mentioned elevated work platform to the bottom of the hoistway by the above-mentioned loading device. [Figure 12] It is a diagram showing one step of the loading procedure from the boarding place of the above-mentioned elevated work platform to the bottom of the hoistway by the above-mentioned loading device.
Embodiments for Carrying Out the Invention
[0019] Hereinafter, before explaining the loading device according to the present invention based on the embodiments, the equipment to be loaded will be described. In FIG. 1, a high-altitude work platform 200 is shown as an example of the equipment to be loaded. FIG. 1(a) is a perspective view of the high-altitude work platform 200, and FIG. 1(b) is a front view of the high-altitude work platform 200. The high-altitude work platform 200 is used by being placed at the bottom of the hoistway during the construction work of the elevator. The high-altitude work platform 200 is a known device including a carriage 202, a work floor 204, and a lifting device 206 for lifting and lowering the work floor 204 with respect to the carriage 202. The high-altitude work platform generally has a considerable weight (for example, 800 kg).
[0020] The carriage 202 has a rectangular base frame 208. The base frame 208 has a pair of long frame members 210, 212 and a pair of short frame members 214, 216, and these frame members are combined to form an overall rectangular shape. The frame member 214 is provided with a hanging portion 215 for hooking the hook 142 of a winch 140 described later.
[0021] A pair of casters 218, 220 are attached to both ends of the frame member 210 as wheels. Similarly, a pair of casters 222 (the other caster 224 is not shown in FIG. 1) are attached to the frame member 114.
[0022] The lifting device 206 lifts and lowers the work floor 204 with respect to the carriage 202 by a known mast-type lifting mechanism having a hydraulic cylinder (not shown) as a drive source.
[0023] The work platform 204 is the area where workers perform their tasks. This work primarily involves installing equipment within the elevator shaft. After the elevated work platform 200 is placed at the bottom of the elevator shaft, the work platform 204 is extended in all directions from the state shown in Figure 1, and safety fences, etc. (not shown) are installed. However, these are not the main focus of the present invention, so their explanation will be omitted.
[0024] The elevated work platform 100 is also provided with hooks 226, 227, 228, and 229 for attaching the hooks of the wire sling 153 (Figures 9 and 10), which will be described later (see also Figure 8).
[0025] Next, the loading device 100 according to the embodiment will be described. Figure 2 is a perspective view of the loading device 100. As shown in Figure 2, the loading device 100 has a main body 102 which is made up of multiple single pipes, which are rod materials, assembled into a rectangular parallelepiped structure. Of the multiple single pipes shown in Figure 2, only those necessary for the following description will be given reference numerals. Note that all single pipes and materials necessary for assembling the multiple single pipes into a rectangular parallelepiped structure are known materials.
[0026] In the main body 102, multiple (six in this example) single pipes 104 to 109 are combined in a rectangular shape, and the inside of this rectangle is the entrance EN for the elevated work platform 200 (cart 202) to the main body 102 (inside the elevator shaft 10). The direction of arrow A is the direction of entry, and when viewed from the landing in the direction of arrow A, the entrance EN is rectangular (in this example, a vertically elongated rectangle).
[0027] One of the single pipes forming the entrance EN, single pipe 107, is perpendicular to the direction of arrow A. Single pipe 110 is provided parallel to single pipe 107 (i.e., perpendicular to the direction of arrow A) and at the same height.
[0028] A pair of guide rails 120 and 130 are stretched between the single pipe 107 and the single pipe 110. Guide rails 120 and 130 have the same configuration except that they are oriented in opposite directions when viewed from the direction of arrow A (the direction in which the elevated work platform 200 enters). Therefore, guide rail 120 will be described as a representative example, and for guide rail 130, the last digit of its components will be assigned the same symbol as the last digit of the corresponding component in guide rail 120, and its description will be omitted.
[0029] Figure 3(a) shows a perspective view of the guide rail 120 stretched between the single pipes 107 and 110, Figure 3(b) shows a perspective view of only the guide rail 120 from a different angle than in Figure 3(a), Figure 3(c) shows Figure 3(b) viewed in the direction of arrow B, and Figure 3(d) shows a front view of the legs 122 of the guide rail 120. Note that the single pipe clamp 125, which will be described later, is not shown in Figure 3(d).
[0030] The guide rail 120 has a main body 121 made of channel steel. The main body 121 is a member that guides the wheel portions of the casters 222 and 224. The groove width of the main body 121 is slightly larger than the width of the wheel portion.
[0031] As shown in Figure 3, three legs 122, 123, and 124 are provided on the side of the main body 121. As shown in Figure 3(d), the legs 122, 123, and 124 are shaped by cutting out one side of a rectangular steel plate in an arc shape. Each of the legs 122, 123, and 124 is joined to the side of the main body 121 by welding at the predetermined positions shown in Figures 3(a) and 3(b).
[0032] A known single-pipe clamp 125 is fixed to the side of the main body 121 in the longitudinal direction, at the same position as the leg portion 122. The single-pipe clamp 125 is used to fix the main body 121 to the single-pipe pipe 110, or to release the fixation so that it can be removed from the single-pipe pipe 110. If it is not necessary to fix the main body 125 to the single-pipe pipe 110, the same leg portion as the leg portion 122 may be provided instead of the single-pipe clamp 125.
[0033] The end of the main body 121 on the side where the single-pipe clamp 125 is installed is provided with a wheel stopper 126 to stop the movement of the wheel portion of the caster 222 as it rolls in the groove of the main body 121 in the direction of arrow B. The wheel stopper 126 is made of a rectangular steel plate and is welded to one end of the groove of the main body 121 so as to block that end.
[0034] Returning to Figure 2, a known hand-wound winch 140 (hereinafter simply referred to as "winch 140") is attached to the longitudinal center of the single-pipe 110 as a towing means. The winch 140 has a rope 141 and a hook 142 provided at the end of the rope 141. The winch 140 functions as a towing means that pulls the trolley 202 toward the winch 140, that is, in the direction of entry of the trolley 202 indicated by arrow A, by hooking (connecting) the hook 142 to the attachment part 215 (Figure 1) of the trolley 202 and winding up the rope 141.
[0035] Furthermore, the main body 102 is provided with a lifting means 150 for lifting the elevated work platform 200. The lifting means 150 includes a pair of chain blocks 151 and 152 attached to the single pipe 111 and single pipe 112, respectively. The chain blocks 151 and 152 can be either manually operated or electrically operated.
[0036] The lifting means 150 also includes two sets of two-legged wire slings 153 (Figures 9 and 10). The wire slings are known to have an annular shape at one end and hooks (neither the "annular part" nor the "hooks" are shown) at the other end. The annular part is hooked onto the hooks of the chain blocks 151 and 152, and each of the hooks is hooked onto the hooking parts 226, 227, and 228 (Figure 1), respectively, and the chain blocks 151 and 152 are used to suspend the elevated work platform 200.
[0037] The annular portion of the wire sling 153 is usually hooked onto the hooks of the chain blocks 151 and 152, and the hooks are used by hooking them onto the hooks 226, 227, and 228 (Figure 1) as needed. Note that the wire sling 153 is not shown in Figures 2, 4 to 8, and 11. In addition, a known chain sling may be used instead of a wire sling.
[0038] Each of the legs of the main body 102 is fitted with a known jack base 114, 115, 116, or 117, allowing the vertical height of the main body 102 to be adjusted.
[0039] Next, the procedure for transporting the elevated work platform 200 into the elevator shaft 10 using the transport device 100 will be explained with reference to Figures 4 to 12. Figure 4 shows the main body 102 of the transport device 100 assembled at the bottom 11 of the elevator shaft 10. Note that in Figures 4 to 7 and Figures 9 to 12, the elevator shaft 10 and the landing 13 are shown in vertical cross-sectional views.
[0040] A worker (not shown) descends from the opening 12 of the elevator shaft 10 to the bottom 11 of the elevator shaft and assembles the main body 102. At this time, once the main body 102 is assembled, the height of the main body 102 may be adjusted as needed using the jack bases 114, 115, 116, and 117 (Figure 2).
[0041] Once the main body 102 is assembled, the guide rails 120 and 130 are attached to the main body 102. Specifically, as shown in Figure 2, the legs 124 and 123 (Figure 3) of the guide rail 120 are fitted onto the single pipe 107, the leg 122 and the single pipe clamp 125 (Figure 3) are fitted onto the single pipe 110, and then the single pipe clamp 125 is used to clamp the single pipe 110.
[0042] Guide rail 130 is attached to the single pipes 107 and 110 in the same manner as guide rail 120. Guide rails 120 and 130 can be easily removed from the main body 102 (single pipes 107 and 110) by releasing the clamps on the single pipe clamps 125 and 135 and lifting them upwards. In other words, guide rails 120 and 130 are detachably attached to the main body 102 (single pipes 107 and 110). Here, "detachably attached" means that they can be freely attached and removed.
[0043] When attaching the guide rails 120 and 130 to the main body 102, the distance Dr between them (Figure 2) is adjusted to match the distance Dw between the casters 218 and 222 of the trolley 202 (Figure 1(b)). Each of the pair of guide rails 120 and 130 can be positioned in the longitudinal direction by fitting their respective legs and single-pipe clamps onto the single-pipe pipes 107 and 110 and sliding them in the longitudinal direction of the single-pipe pipes 107 and 110 as needed, thus easily adjusting the distance Dr between the two guide rails 120 and 130 to match the distance Dw between the casters 218 and 222.
[0044] When guides 120 and 130 are attached to the main body 102, a portion of them (the leading edge portion on the landing 13 side) is extended over the landing 13. The extended state refers to a state in which, in a plan view, the leading edge portion overlaps with the landing floor 13a, regardless of whether there is a slight gap between the leading edge portion and the landing floor 13a as shown in Figure 5, or whether it is in contact with the landing floor 13a (not shown).
[0045] Once the loading device 100 is assembled in the elevator shaft 10 as described above, the loading of the elevated work platform 200 into the elevator shaft 10 begins. First, the elevated work platform 200 is brought to the landing 13. Then, as shown in Figure 6, the hook 142 of the winch 140 is hooked (connected) to the hook portion 215 (Figure 1) provided on the trolley 202 of the elevated work platform 200, and the winch 140 is operated to pull the trolley 202 in the direction of arrow A, that is, in the direction of travel into the elevator shaft 10, using the rope 141.
[0046] The towed trolley 202 (high-altitude work platform 200) is guided by the guide rails 130 and 120 via its casters 218, 220, 222, and 224, and enters the elevator shaft 10 through the opening 12. As the trolley 202 (high-altitude work platform 200) passes through the opening 12 of the elevator shaft 10, it is guided by the guide rails 130 and 120, thus preventing it from meandering as much as possible. As a result, collisions between the high-altitude work platform 200 and the side walls of the landing 13 (opening 12 and its surroundings) can be prevented as much as possible.
[0047] If there is a gap between the landing 13-side ends of the guide rails 130 and 120 and the landing floor 13a, as shown in Figure 6, then without any countermeasures, each of the casters 218 and 222 (Figure 1) may spring up around the single pipe 107 when they enter the landing 13-side ends of the guide rails 130 and 120 (Figure 2). However, since the guide rails 130 and 120 are provided with single pipe clamps 135 and 125 (Figure 2), such springing up is prevented. In other words, each of the single pipe clamps 135 and 125 functions as a means to prevent the guide rails 130 and 120 from springing up when the trolley 202 begins to be guided along the guide rails 130 and 120.
[0048] Figure 7 shows the elevated work platform 200 being towed by the winch 140 into the main body 102 of the loading device 100 (inside the elevator shaft 10), with the hook 142 (Figure 2) removed from the hook 215 (Figure 1(a)), and Figure 8 shows a perspective view of the same state. When being towed by the winch 140, the wheel stoppers 126 and 136 (Figure 2) literally act as wheel stoppers for the casters 222 and 218, preventing the elevated work platform 200 (cart 202) from passing the main body 102 of the loading device 100.
[0049] Next, the hooks (not shown) of the wire sling 153 are attached to the hooking parts 226, 227, 228, and 229 (connecting the chain blocks 151 and 152 to the hooking parts 226, 227, 228, and 229 with the wire sling 153), and the chain blocks 151 and 152 are operated to lift the elevated work platform 100. The elevated work platform 200 in the lifted state is shown in Figure 9. In this embodiment, the lifting means 150 (Figure 2) for raising and lowering the elevated work platform 200 is configured with a pair of chain blocks 151 and 152 provided on the left and right sides of the elevated work platform 200 that has entered the elevator shaft 10 (inside the main body 102). Therefore, if the lifting means is configured with a single winch 6 (Figures 2 and 3 of Patent Document 1) as in Patent Document 1, it is necessary for the operator to restrain the hoisting machine 5 (Figure 3 of Patent Document 1) to prevent it from rotating around the chain of the winch 6, which is time-consuming. However, in this embodiment, such time-consuming procedures are avoided.
[0050] When the elevated work platform 200 is lifted by the lifting means 150, the guide rails 120 and 130 are removed from the main body 102 (single pipes 107 and 110). The removed state is shown in Figure 10.
[0051] Once the guide rails 120 and 130 are removed, the elevated work platform 200 is lowered to the bottom of the hoistway 11 by the lifting means 150. At this time, the lifting means 150 suspends the elevated work platform 200 to the bottom of the hoistway 11 by passing it between two single pipes 107 and 110 (Figures 2 and 8). Once it is suspended to the bottom of the hoistway 11, the wire sling 153 is removed from the attachment points 226, 227, 228, and 229 of the elevated work platform 200.
[0052] Figure 11 shows the elevated work platform 200 suspended to the bottom 11 of the elevator shaft. Then, the loading device 100 is dismantled and removed from inside the elevator shaft 10, as shown in Figure 12, and the work of loading the elevated work platform 200 from the landing 13 through the opening 12 of the elevator shaft 10 to the bottom 11 of the elevator shaft is completed.
[0053] Once the installation of equipment inside the elevator shaft using the elevated work platform 200 is completed, the elevated work platform 200 is removed from the elevator shaft 10. At that time, a main body 102 (tower) is assembled around the elevated work platform 200 using the aforementioned single pipes, and the elevated work platform 200 is moved from the bottom of the elevator shaft 11 through the opening 12 of the elevator shaft 10 to the landing 13 in the reverse order of the transport procedure described above.
[0054] Although the loading device according to the present invention has been described above based on embodiments, the present invention is of course not limited to the problems described above, and may take the following forms, for example. (1) In the above embodiment, the object to be transported by the transport device 100 was a work platform 200, which is a piece of equipment having a trolley 202. However, it is not limited to this, and for example, a hoisting machine, which is a piece of equipment mounted on a trolley, as described in Patent Document 1, may also be used as the object to be transported. In this case, it is preferable to use casters for the wheels provided on the trolley, as in the above embodiment.
[0055] When bringing in equipment mounted on a trolley, after the equipment is lifted by the lifting means 150 (Figure 9), the trolley is removed from the main body 102 (single pipes 107, 110) before the guide rails 120, 130 are removed from the main body 102 (single pipes 107, 110) (Figure 10). Only the equipment is brought into the bottom of the hoistway 11.
[0056] (2) In the above embodiment, the lifting means 150 for raising and lowering the elevated work platform 200 that has entered the elevator shaft 10 guided by a pair of guide rails 120 and 130 is composed of a pair of chain blocks 151 and 152 provided on the left and right sides of the elevated work platform 200 that has entered the elevator shaft 10 (Figure 2). However, the pair of chain blocks 151 and 152 may be provided not only on the left and right sides but also in the front and back.
[0057] In other words, the chain block 151 may be attached to the single pipe 104 shown in Figure 2, and the chain block 152 may be attached to the single pipe 113.
[0058] (3) In the above embodiment, the loading device 100 is equipped with a winch 140 as a towing means, but the winch 140 is not necessarily required. In that case, the workers will push the elevated work platform 200.
[0059] (4) Alternatively, the lifting means 150 may also be used as a towing means; that is, the lifting means 150 may also be used as a towing means. When the elevated work platform 200 has been brought to the landing 13 (Figure 6), one hook (not shown) of each wire sling 153 is attached to the hooks 227 and 228, respectively, and the chain blocks 151 and 152 are operated to pull (tow) the elevated work platform 100 into the elevator shaft 10.
[0060] (5) Even when a towing means using a winch 140 is provided, when the elevated work platform 200 is transported to the landing 13 (Figure 6), one hook of each wire sling 153 can be attached to the hooks 227 and 228, respectively, and the chain blocks 151 and 152 can be retracted in accordance with the movement of the elevated work platform 200. This prevents the elevated work platform 200 from falling from the landing 13 into the elevator shaft 10 if the front wheels (casters 218 and 222) of the trolley 202 of the elevated work platform 200 fail to enter the guide rails 130 and 120. In other words, in this case, the lifting means 150 also functions as a means to prevent the elevated work platform 200 from falling into the elevator shaft 10.
[0061] (6) In the above embodiment, the tower (main body 102) was constructed using round bar material, which is single pipe, but it is not limited to this and may be constructed using square bar material as well. [Industrial applicability]
[0062] The loading device according to the present invention can be suitably used, for example, as a device for loading various equipment into the bottom of an elevator shaft. [Explanation of Symbols]
[0063] 100 Loading device 102 Main Unit 120, 130 guide rails 150 Lifting methods
Claims
1. A loading device for transporting equipment with a trolley or equipment placed on a trolley from the elevator landing through the opening of the hoistway to the bottom of the hoistway, The main body is installed at the bottom of the elevator shaft, A pair of guide rails are provided that are detachably attached to the main body, and when attached, a portion of which extends to the platform, to guide the wheels of the trolley. A lifting means for raising and lowering the equipment that has entered the elevator shaft guided by the pair of guide rails, A loading device characterized by having the following features.
2. The loading device according to claim 1, characterized in that the spacing between the pair of guide rails can be changed to match the spacing between the wheels of the trolley.
3. The loading device according to claim 1, characterized in that it has a towing means for towing the trolley in the direction of entry when the equipment is brought into the elevator shaft.
4. The loading device according to claim 1, characterized in that the lifting means includes a pair of chain blocks provided in front of or to the left and right of the equipment that has entered the elevator shaft.
5. The aforementioned main body is constructed by assembling multiple rods in a rectangular parallelepiped shape to form a tower. As viewed from the boarding area, the trolley enters the main body forming the tower through an entrance made up of four rods arranged in a rectangular shape. The loading device according to any one of claims 1 to 4, characterized in that the trolley is perpendicular to the direction of entry and each of the pair of guide rails is stretched between two rod members that are provided parallel to each other.
6. The pair of guide rails are guide rails that are removed when the equipment is lifted by the lifting means, The loading device according to claim 5, characterized in that the lifting means is a means for suspending the equipment to the bottom of the elevator shaft by passing it between the two rod members when the pair of guide rails are removed.