Installation structure for lifting device

Abstract

To provide an installation structure for a lifting device that can improve safety and reduce installation costs.SOLUTION: An installation structure of a lifting device is such that a lifting device 1, which is composed of a mast 11 erected along the temporary scaffolding S, a carrier 13 for loading construction materials, a support mechanism 14 movable in the lifting and descending direction along the mast 11 for supporting the carrier 13, and a chain block 15 for moving the carrier 13 in the lifting and descending direction by moving the support mechanism 14 in the lifting and descending direction, is installed within an area space E formed by a plurality of pillars 2 and horizontal members 5 that constitute the temporary scaffolding S.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an installation structure for a lifting device for transporting construction materials in the vertical direction, for example, on a temporary scaffolding. [Background technology]

[0002] Conventionally, in construction work for buildings, houses, etc., temporary scaffolding is provided around the building, etc. The temporary scaffolding is composed of, for example, a plurality of erected supports, a plurality of horizontal members for connecting the supports in the horizontal direction, and a floor-mounted cloth frame that is hung between the horizontal members and allows workers to move around.

[0003] For example, when construction work is being carried out, a lifting device may be provided on the temporary scaffolding to transport construction materials and the like to the upper part of the temporary scaffolding (see, for example, Patent Document 1). The lifting device is composed of, for example, a mast connected to a support on the outer side of the temporary scaffolding, a carrier for loading construction materials, and a support mechanism for moving the carrier along the mast. Here, the temporary scaffolding is usually provided with, for example, a mesh-like protective sheet, and the lifting device is provided on the outside of this protective sheet.

[0004] The hoisting device is moved above the temporary scaffolding, and when the loaded building materials, construction tools, etc. are unloaded from the carrier onto the scaffolding, or when the construction tools, etc. are loaded onto the carrier after the construction work is completed, there is a risk that they may be accidentally dropped.

[0005] In addition, when the lifting device is moved vertically, it may shake for some reason, and construction materials, tools, etc. loaded on the lifting device may fall. Since there is a possibility that pedestrians may pass on the ground outside the temporary scaffolding (curing sheet), it is necessary to secure a construction space for the lifting device by setting up barricades, etc. around the area on the ground where the lifting device is installed. Therefore, there are problems such as high installation costs and time-consuming installation work. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2015-20481 A Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been devised in light of the above-mentioned circumstances, and an object of the present invention is to provide an installation structure for a lifting device that can improve safety and reduce installation costs. [Means for solving the problem]

[0008] The installation structure for a lifting device provided by the present invention is an installation structure for a lifting device comprising a mast erected along a temporary scaffolding, a carrier for loading construction materials, support means for supporting the carrier and movable in a lifting and lowering direction along the mast, and lifting means for moving the carrier in the lifting and lowering direction by moving the support means in the lifting and lowering direction, and is characterized in that the lifting device is installed within an area space formed by a plurality of scaffolding members that construct the temporary scaffolding.

[0009] In the lifting device installation structure of the present invention, the temporary scaffolding preferably comprises at least a plurality of upright pillars and a plurality of horizontal members arranged horizontally in the front-back, left-right and right directions between the plurality of pillars.

[0010] In the installation structure of the lifting device of the present invention, the area in the carrier for loading the construction materials may be approximately rectangular in plan view with a recess formed therein, and the mast may be erected in the space portion of the recess.

[0011] In the installation structure of the lifting device of the present invention, the carrier may be provided with a flap that functions as a baseboard when the building materials are loaded and also functions as a blocking member that closes the gap between the carrier and the horizontal member when the building materials are loaded or unloaded.

[0012] In the lifting device installation structure of the present invention, the carrier may be provided with a collision prevention member to prevent interference with the temporary scaffolding when the carrier swings.

[0013] In the installation structure of the lifting device of the present invention, a photoelectric system consisting of an light-emitting body that emits light, a light-receiving body that receives light emitted from the light-emitting body, and a control device that detects the presence or absence of light received by the light-receiving body is provided within the area space, and when the control device detects that there is no light from the light-receiving body, it is preferable that the control device stops the lifting and lowering of the carrier.

[0014] In the installation structure of the lifting device of the present invention, a removable front handrail is provided on the front side of the carrier, a rear handrail that can be opened and closed is provided on the rear side of the carrier, and side handrails that can be opened and closed are provided on both side sides of the carrier. Effect of the Invention

[0015] According to the installation structure of the lifting device of the present invention, the lifting device is installed in the area space defined by the support columns and horizontal members of the temporary scaffolding, so that even if the loaded construction materials fall when the lifting device is raised or lowered, the construction materials will not fall outside the temporary scaffolding. Therefore, there is no need to install barricades, and it is possible to provide a safe lifting device without the construction materials falling on passersby, for example. [Brief description of the drawings]

[0016] [Figure 1] 1 is a side view showing an installation structure of a lifting device according to the present invention. [Diagram 2] FIG. 2 is a front view showing the installation structure of FIG. [Diagram 3] 3 is a plan view of the main part as seen from the line AA in FIG. 2. [Figure 4] 1A and 1B show an upper guide member, in which FIG. [Diagram 5] 4A and 4B show a lower guide member, in which FIG. [Figure 6] 3 is a plan view of the main part as seen from BB in FIG. 2. [Figure 7] 13A and 13B are diagrams for explaining the opening and closing operation of the rear handrail. [Figure 8] 11A and 11B are diagrams for explaining a collision prevention member. [Figure 9] 13A and 13B are diagrams for explaining another collision prevention member. [Figure 10] FIG. 2 is a side view showing the installation structure of the lifting device to explain the photoelectric system. [Figure 11] FIG. 2 is a front view showing the installation structure of the lifting device to explain the photoelectric system. [Figure 12] 12 is a plan view of the main part as seen from CC in FIG. 11 for explaining the arrangement positions of the light emitters. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0018] FIG. 1 is a side view showing an installation structure for a lifting device according to the present invention, FIG. 2 is a front view showing the installation structure of FIG. 1, and FIG. 3 is a plan view of the main part as seen from AA in FIG.

[0019] The lifting device 1 is used, for example, in construction work of a building or a house, and is for vertically transporting construction materials, etc. In this embodiment, the lifting device 1 is installed inside a temporary scaffold S installed around a structure such as a building, as described later.

[0020] The temporary scaffolding S on which the hoisting device 1 is installed is composed of, as shown in Figures 1 to 3, a number of upright pillars 2, a number of horizontal members 5 for connecting these pillars 2 horizontally using flanges 3 and connecting members 4, and a floor-mounted cloth frame 7 (see Figure 3) that is suspended between the multiple horizontal members 5 using gripping fittings 6, etc., as scaffolding components.

[0021] The lifting device 1 according to this embodiment is provided inside the temporary scaffolding S, that is, installed within an area space E formed by the above-mentioned plurality of supports 2 and the plurality of horizontal members 5 and the like.

[0022] The hoisting device 1 is roughly composed of a mast 11 erected parallel to the pillars 2 of the temporary scaffolding S, a bracket member 12 fixed to a predetermined position on the mast 11 and suspending a chain block 15 (described later), a carrier 13 for loading construction materials, etc., a support mechanism 14 that is movable vertically along the mast 11 for supporting the carrier 13, and a chain block 15 for moving the support mechanism 14 vertically.

[0023] The mast 11 is attached to the supports 2 of the temporary scaffolding S via a plurality of mounting clamps 17 arranged at predetermined intervals. The mast 11 is formed by connecting a plurality of mast members (not shown) formed in a substantially rectangular prism shape and having a predetermined length in the vertical direction.

[0024] The bracket member 12 consists of a block mounting member 18 extending horizontally, an upper base 19 connected to one end of the block mounting member 18 and arranged along the mast 11, a connecting member 20 having one end connected to the block mounting member 18 and extending in the vertical direction, and a lower base 21 connected to the lower end of the connecting member 20 and arranged along the mast 11.

[0025] A plurality of bearings 23 capable of rolling along the mast 11 are attached below each of the bases 19, 21. More specifically, two bearings 23 are attached to the upper base 19, each of which contacts two of the four flat surfaces of the mast 11, and three bearings 23 are attached to the lower base 21, each of which contacts the two flat surfaces of the mast 11 and the corners of the mast 11.

[0026] The chain block 15 described above is suspended from the tip of the block mounting member 18. The chain block 15 is a device for lifting and lowering a heavy load while suspending it via a chain 25. The chain block 15 supports the support mechanism 14 and the carrier 13 by hooking a part of the support mechanism 14 with a hook 26 at the tip of the chain 25.

[0027] The support mechanism 14 is composed of an upper guide member 27 and a lower guide member 28 which are movable along the mast 11. The upper guide member 27 is suspended from the chain block 15 and slidable along the mast 11, and supports the carriage 13 from above. The lower guide member 28 is slidable along the mast 11 and supports the carriage 13 from below.

[0028] As shown in Fig. 4, the upper guide member 27 is composed of a chain attachment member 30 extending horizontally, an upper base 31 connected to one end of the chain attachment member 30 and provided along the mast 11, a connecting member 32 one end of which is connected to the chain attachment member 30 and extends in the vertical direction, a middle base 33 connected to the center of the connecting member 32 and provided along the mast 11, a lower base 34 connected to the lower end of the connecting member 32 and provided along the mast 11, and a spring 35 that biases the chain attachment member 30 slightly inclined between the chain attachment member 30 and the connecting member 32. A central support member 49 (not shown in Fig. 4) of the carriage 13, which will be described later, is attached to the connecting member 32 via an attachment plate 36.

[0029] Each of the bases 31, 33, 34 is fitted with a plurality of bearings 37 capable of rolling along the mast 11. More specifically, two bearings 37 are attached above the upper base 31 so as to contact two of the four flat surfaces of the mast 11, two bearings 37 are attached below the middle base 33 so as to contact the two flat surfaces of the mast 11, and three bearings 37 are attached to the lower base 34 so as to contact the two flat surfaces of the mast 11 and the corners of the mast 11.

[0030] When the chain mounting member 30 suspended from above by the chain block 15 is no longer suspended, the spring 35 biases the chain mounting member 30 in an oblique position to prevent it from slipping off the mast 11, thereby fixing the upper guide member 27 to the mast 11.

[0031] On the other hand, as shown in Figure 5, the lower guide member 28 is connected to a central support member 49 (omitted in Figure 5) of the carrier 13 via an attachment plate 38, which will be described later, and consists of a connecting member 39 extending in the vertical direction, an upper base 40 connected to the upper end of the connecting member 39 and provided along the mast 11, and a lower base 41 connected to the lower end of the connecting member 39 and provided along the mast 11.

[0032] Each of the bases 40, 41 is fitted with a plurality of bearings 42 that are capable of rolling along the mast 11. More specifically, the upper base 40 is fitted with two bearings 42 that contact two of the four flat surfaces of the mast 11, and the lower base 41 is fitted with three bearings 42 that contact the two flat surfaces of the mast 11 and also contact the corners of the mast 11.

[0033] The carrier 13 is for carrying construction materials and the like, and is formed in a substantially rectangular frame shape with a plurality of members joined together. In particular, the carrier 13 according to this embodiment is formed in a rectangular shape having a recess 45 in the center of one side on the depth side in a plan view, as shown in FIG.

[0034] Each side of the carriage 13, except for a few, is formed by a plurality of cross members 46, and a bottom plate 47 on which construction materials are placed is provided on the horizontal surface of the bottom of the carriage 13 formed by the cross members 46. A plurality of support members 48 extending in the vertical direction are erected at the corners of the carriage 13 and the corners of the recess 45, and each side connecting the upper ends of the support members 48 in the recess 45 portion is connected by a plurality of cross members 46. A central support member 49 extending in the vertical direction from the bottom of the carriage 13 and protruding a predetermined distance is provided at the center of the cross members 46 extending in the left-right direction of the recess 45.

[0035] As described above, the upper guide member 27 is connected to the central support member 49 via the mounting plate 36, and the lower guide member 28 is connected to the central support member 49 via the mounting plate 38. As a result, the carrier 13 is supported by the upper guide member 27 and the lower guide member 28 via the central support member 49.

[0036] Generally, in a temporary scaffolding S, the area surrounded by multiple horizontal members 5 in a plan view is formed in an approximately rectangular shape, but as in this embodiment, by making the shape of the carrier 13 for carrying the construction materials a rectangular shape having a recess 45, it is possible to move the hoisting device 1 in the vertical direction within the above-mentioned area while loading as much construction material as possible (e.g., pails or one-ton cans, etc.) onto the carrier 13.

[0037] At both longitudinal ends of the carrier 13, there are provided side handrails, including an upper rail 51 that connects the upper ends of the support members 48, and a middle rail 52 that connects the middle parts of the support members 48 (see FIG. 1). The upper rail 51 and the middle rail 52 can be opened and closed freely. This allows workers to unload construction materials from the carrier 13 smoothly and quickly.

[0038] As shown in Figure 2, on the front side of the carrier 13, there is provided an upper handrail 54 which is connected to the upper ends of the support members 48 and can be removed, and a middle handrail 55 which is connected to the middle parts of the support members 48 and can be removed (see Figure 2).

[0039] The upper handrail 54 has both ends formed in a roughly U-shape with the bottom open in side view, and the roughly U-shaped portions of both ends of the upper handrail 54 are attached to the upper ends of the support members 48 (see Figures 2 and 3). The middle handrail 55 has both ends formed in a hook shape and has a step bent inward in the center (see Figures 2 and 6). Both ends of the middle handrail 55 have their hook-shaped portions hung over pins (not shown) formed on the support members 48, so that they can be attached to the center of the support members 48.

[0040] With this configuration, when loading construction materials into the carrier 13, the upper handrail 54 and the middle handrail 55 can be freely removed from the carrier 13, allowing workers to load the construction materials into the carrier 13 smoothly and quickly.

[0041] In addition, on the rear side of the carrier 13, as shown in Figure 7, there are provided a pair of upper handrails 57 supported on the upper ends of the support members 48 and capable of being opened and closed freely, and a pair of middle handrails 58 supported on the middle parts of the support members 48 and capable of being opened and closed freely.

[0042] With this configuration, when unloading construction materials from the carrier 13, the upper handrail 57 and the middle handrail 58 can be opened and closed freely relative to the carrier 13, allowing workers to smoothly and quickly unload construction materials from the carrier 13. The upper handrail 57 and the middle handrail 58 are not removable like the upper handrail 54 and the middle handrail 55 on the front side, in order to prevent the upper handrail 57 and the middle handrail 58 on the rear side from falling off the carrier 13 when unloading construction materials from the carrier 13.

[0043] A number of rotatable fall protection flaps 60 are provided around the bottom of the carrier 13 except for the front side. These fall protection flaps 60 are intended to prevent construction materials and the like loaded on the carrier 13 from falling, and one is provided on each of the two lateral ends of the carrier 13, as well as two on the rear side. In addition, a baseboard 61 is provided near the bottom on the front side of the carrier 13 (see FIG. 2).

[0044] The drop protection flap 60 is disposed vertically and functions as a so-called baseboard when the lifting device 1 (carrier 13) is raised and lowered in the vertical direction. When the lifting device 1 (carrier 13) is stopped at the height position of any layer of the temporary scaffolding S, the drop protection flap 60 is disposed horizontally and hung across any horizontal member 5, and functions to close any gap that occurs between the carrier 13 and the floor-mounted cloth frame 7 of the temporary scaffolding S.

[0045] Further, a plurality of collision prevention members 62 are provided near the upper and lower parts of the support members 48 on both the left and right ends on the rear side of the carrier 13. The collision prevention members 62 are for preventing collision with the temporary scaffolding S, and are formed in a generally mountain-like shape extending vertically and having a flat surface in the center when viewed from the side.

[0046] With this configuration, when the hoisting device 1 (carrier 13) is raised and lowered in the vertical direction and the carrier 13 sways (see arrow D in Figure 8), when the carrier 13 is about to interfere with any component of the temporary scaffolding S (e.g., horizontal member 5), the collision prevention member 61 comes into contact with the component of the temporary scaffolding S before the carrier 13, thereby preventing the carrier 13 from interfering with the component of the temporary scaffolding S.

[0047] Since the lifting device 1 is installed in the area space E inside the temporary scaffolding S, if the lifting device 1 sways, there is a high possibility that it will interfere with the components of the temporary scaffolding S. However, the above-mentioned collision prevention member 62 is used to prevent interference with the components of the temporary scaffolding S.

[0048] The shape of the collision prevention member 62 may be a flexible cushion roller 63 having a roughly cylindrical shape with rounded corners as shown in FIG. 9, instead of the roughly mountain-like shape having a flat surface in the center as described above.

[0049] As described above, according to the installation structure of the lifting device 1 according to this embodiment, the lifting device 1 is provided so as to be disposed in the area space E inside the temporary scaffolding S, and is raised and lowered in this area space E. Therefore, even if the loaded construction materials, etc. fall when the lifting device 1 is raised and lowered, the construction materials, etc. will not fall outside the temporary scaffolding S. Therefore, it is possible to provide a safe lifting device 1 without construction materials, etc. falling on passersby, for example. There is also no need to provide barricades, etc.

[0050] In the above embodiment, collision prevention members 62, 63 are provided for the purpose of preventing interference with the temporary scaffolding S when shaking occurs during raising and lowering of the lifting device 1. However, instead of this, a photoelectric system as shown below may be provided.

[0051] That is, as shown in Figures 10 to 12, the photoelectric system is composed of a number of light-emitting elements 65 that emit linear light and are installed on the ground below the lifting device 1, a number of photodetectors 66 that are provided on the horizontal member 5 near the chain block 15, and a control device (not shown) that is connected to each light-emitting element 65 and each photodetector 66 and controls the lifting and lowering operation of the lifting device 1.

[0052] As shown in FIG. 12, the multiple light-emitting bodies 65 are arranged near both ends on the rear side of the carrier 13 in a plan view and near both ends in the longitudinal direction of the carrier 13 in a plan view.

[0053] On the other hand, the photoreceiver 66 is disposed at a position vertically opposite to the light emitter 65. Specifically, the photoreceiver 66 is supported by a double clamp 67 and an attachment member 68 provided on any one of the horizontal members 5 of the temporary scaffolding S, and is formed into a substantially L-shape in plan view.

[0054] With this configuration, light emitted from light-emitting body 65 in response to a signal from the control device is received by light-receiving body 66, and the control device recognizes this. In this case, if shaking occurs during lifting / lowering of the lifting device 1 (see arrow F in FIG. 12) and any member constituting the lifting device 1 blocks the light emitted from light-emitting body 65, the light is no longer received by light-receiving body 66, and the control device, recognizing this, stops the lifting / lowering of the lifting device 1.

[0055] In this way, according to another embodiment, when swaying of the lifting device 1 is detected, the lifting and lowering of the lifting device 1 is stopped, thereby providing a safe lifting device 1. The photoelectric system may be used in combination with the drop protection flap 60 described above.

[0056] The scope of the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the invention. For example, the configurations, shapes, sizes, quantities, etc. of the lifting device 1, mast 11, carrier 13, support mechanism 14, upper guide member 27, lower guide member 28, etc. in the above-mentioned embodiment are not limited to the above-mentioned embodiment, and can be appropriately modified in design.

[0057] Also, in the above embodiment, the lifting device 1 is installed in the area E along the outermost support pillars 2 of the temporary scaffolding S, but instead, it may be installed in the area E of a more inner temporary scaffolding S. Also, in the above embodiment, the installation structure of the lifting device 1 is applied to a so-called wedge-fastening type scaffolding using the support pillars 2 and horizontal members 5, etc., but instead, it may be applied to a frame scaffolding, a temporary scaffolding using shoring, or other temporary scaffolding. [Explanation of symbols]

[0058] 1 Lifting equipment 2 pillars 5 Horizontal material 11 Mast 13 Transporter 14 Support mechanism 15 Chain block 27 Upper guide member 28 Lower guide member 45 Recess 60 Fall protection flap 62 Collision prevention components 65 Luminous Object 66 Photoreceptor E domain space S Temporary scaffolding

Claims

1. A mast erected along the temporary scaffolding; A carrier for loading construction materials; a support means for supporting the carriage, the support means being movable in an ascending and descending direction along the mast; and a lifting means for moving the carrier in a lifting direction by moving the support means in a lifting direction, The lifting device is An installation structure for a lifting device, characterized in that it is installed within an area space formed by a plurality of scaffolding members that construct the temporary scaffolding.

2. The temporary scaffolding is 2. The lifting device installation structure according to claim 1, comprising at least a plurality of upright pillars and a plurality of horizontal members arranged horizontally between the plurality of pillars in the front-rear and left-right directions.

3. The area in the carrier where the building materials are loaded is: The recess is formed in a substantially rectangular shape in a plan view, The lifting device installation structure according to claim 1 , wherein the mast is erected in a space portion of the recess.

4. An installation structure for a lifting device as described in claim 1, wherein the carrier is provided with a flap that functions as a baseboard when the building materials are loaded and also functions as a blocking member that closes the gap between the carrier and the horizontal member when the building materials are loaded or unloaded.

5. 2. The lifting device installation structure according to claim 1, wherein the carrier is provided with a collision prevention member for preventing interference with the temporary scaffolding when the carrier swings.

6. A photoelectric system is provided within the area space, the photoelectric system comprising a light emitter that emits light, a light receiver that receives the light emitted from the light emitter, and a control device that detects the presence or absence of light received by the light receiver; The control device includes:

2. The lifting device installation structure according to claim 1, wherein when it is detected that there is no light from said light receiver, the lifting and lowering of said carrier is stopped.

7. A removable front handrail is provided on the front side of the carrier, A rear handrail that can be opened and closed is provided on the rear side of the carrier, The lifting device installation structure according to claim 1, wherein side handrails that can be opened and closed are provided on both side surfaces of the carrier.

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