Loader

Abstract

To provide a load lifting device having more improved transportation efficiency and assembly quickness.SOLUTION: A load lifting device includes a platform. The platform includes a rear surface part and a bottom part. The rear surface part and the bottom part are mounted to be mutually rotatable and can switch the bottom part between a stored state and a load receiving state by the rotation. In the stored state, the bottom part becomes parallel to the rear surface part and is folded. In the load receiving state, a standing state of the rear surface part is maintained.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a hoist.

Background Art

[0002] A hoist used for hoisting heavy or large products to a high place is known to have a structure in which a loading platform for loading a load is lifted and lowered by a lifting device along a support column.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Conventional hoists are disassemblable and assemblable for improving transportation efficiency. For example, among the hoists, the loading platform is the most bulky, and this loading platform has contributed to a decrease in transportation efficiency. Therefore, a hoist with higher transportation efficiency and faster assembly is desired.

Means for Solving the Problems

[0004] In order to solve the above problems, the hoist according to claim 1 includes a support column and a loading platform. The support column is supported by a base portion to be so that it stands alone with one column vertically and is self-supporting. The loading platform is guided along the support column and moves up and down. inclined such that the lower end moves away from the support column with respect to the support column It is composed of a back portion rotatably attached to the back surface portion and a bottom portion. a stored state in which the bottom and the back surface are parallel, a load-bearing state in which the bottom is substantially perpendicular to the back surface portion can be achieved This is the feature.

Effects of the Invention

[0005] With the above configuration, the present invention can provide a hoist with higher transportation efficiency and faster assembly.

Brief Description of the Drawings

[0006]

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Embodiments for Carrying Out the Invention

[0007] Hereinafter, the hoisting machine A according to the embodiment of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different figures indicate parts having the same function, and duplicate descriptions in each figure are omitted as appropriate. Also, in the following description, the side of the hoisting machine A facing the building B is defined as "front", the side opposite to the building B side is defined as "rear", the width direction of the hoisting machine A is defined as "left and right", and the lifting direction of the hoisting machine A is defined as "up and down", and these "front and rear, left and right, up and down" are described and shown in each figure.

[0008] [Configuration of Hoisting Machine] The hoisting machine A is used to hoist a heavy load C such as a large sash window to a high place on the second floor or above of a building, and can be disassembled and assembled freely. As shown in FIG. 1, the hoisting machine A includes a single column 1, a base portion 2, a loading platform 3, a hoist 4, and a hoist support member 5. The loading platform 3 suspended from the hoist 4 is lifted and lowered along the axial direction of the column 1 erected on the base portion 2 by the lifting and lowering operation of the hoist 4.

[0009] [Configuration of Column] As shown in FIGS. 1 and 4, the column 1 is composed of a plurality of (three in the illustration) column members 10, 11, and 12 that can be freely divided in the axial direction. The column members 10, 11, and 12 are square pipes with the same cross-sectional shape, and the connecting joints 100 are inserted between the ends of the column members 10, 11, and 12 and connected in series along the axial direction. The connecting joint 100 has an outer shape with a square cross-section that is inserted into the inner circumference of the column members 10, 11, and 12 without rattling and with a frictional force that allows it to be easily removed.

[0010] The column member of the first stage (lower part) (hereinafter referred to as the "lower column member") 10 is inserted into the inner circumference of a support pipe 20 (described later) provided on the base part 2 with no rattling and with a frictional force that allows it to be easily removed. The column member of the second stage (intermediate part) (hereinafter referred to as the "intermediate column member") 11 is connected to the upper end of the lower column member 10 via a connecting joint 100. The column member of the third stage (upper part) (hereinafter referred to as the "upper column member") 12 is connected to the upper end of the intermediate column member 11 via a connecting joint 100, and a hoist support member 5 is detachably inserted into the upper end of the upper column member 12.

[0011] The lower column member 10, the intermediate column member 11, and the upper column member 12 are each adjusted to a different length, and as shown in Fig. 1(a), when all are connected, the height of the column 1 is set to a height at which the loading can be carried out on the top floor of a three-story building B. Also, by not connecting the upper column member 12 and detachably inserting the hoist support member 5 into the intermediate column member 11, it is possible to set the height to a height at which the loading can be carried out on the top floor of a two-story building (not shown). Also, when corresponding to a building of four or more stories, the length of the column 1 can be extended by sequentially increasing the intermediate column members 11 (not shown).

[0012] [Effect of the column] Since the column 1 configured as described above is composed of connecting the lower column member 10, the intermediate column member 11, and the upper column member 12, it can be made to a length that allows the loading platform 3 to be raised to the required height. Also, the column 1 can be freely divided into each column member 10, 11, 12, and by dividing it, the length becomes short and it becomes a compact state, so it is convenient for transportation and storage. Also, since the lower column member 10, the intermediate column member 11, and the upper column member 12 are connected by insertion via the connecting joint 100 to each other, the connection work and the division work can be carried out easily and quickly. Furthermore, the number of the columns 1 is not limited to the one illustrated, and two columns 1 may be provided. In this case, the columns 1 may be arranged in parallel left and right or front and back (not shown). Also, when two columns 1 are provided, the hoist support member 5 can be attached to the upper column member 12 of any of the columns 1.

[0013] [Configuration of Base Portion] As shown in FIGS. 1, 2, and 5, the base portion 2 holds the standing state of the column 1 inserted into the support pipe 20, and includes the aforementioned support pipe 20 and a base portion main body 21. The support pipe 20 is a square pipe and is fixed to the central portion of the front surface of the base pipe 210 in the base portion main body 21 with the opening in the vertical direction. The fixing structure of the support pipe 20 is a structure in which the support pipe 20 is arranged between two angles 22 fixed to the front surface side of the base pipe 210, and the support pipe 20 and the angles 22 are fixed by welding, bolting, or the like. The fixing structure of the support pipe 20 may be a structure in which the support pipe 20 is directly fixed to the front surface side of the base pipe 210 by welding, bolting, or the like without using the angles 22. Below the inside of the support pipe 20, a receiving portion 201 for receiving the lower column member 10 is provided. By receiving the lower column member 10 inserted into the support rod 20 with the receiving portion 201 (see FIG. 2(a)), the lower column member 10 is prevented from coming out of the lower part of the support pipe 20. The inserted lower column member 10 is fixed by being bolted from the front surface of the support pipe 20 and can be detached from the support pipe 20 by loosening the bolts.

[0014] As shown in FIG. 5, the base portion main body 21 includes the aforementioned base pipe 210 and an extension body 211. The base pipe 210 is a square pipe to which the extension body 211 is connected and is arranged with the longitudinal direction in the left-right direction. Rubber buffer materials 203 (see FIG. 2) are attached to the lower surfaces on both end sides of the base pipe 210. The buffer materials 203 absorb the unevenness of the installation surface and prevent rattling and displacement in the installation state of the hoist A.

[0015] As shown in FIG. 5, the extension body 211 is a pair of left and right ones, and includes a slide tube 212 and a leg connection tube 213. The slide tube 212 is a square pipe, and the slide tube 212 is coaxially inserted into and removed from the left and right openings of the base tube 210 and is slidably inserted. Further, as shown in FIG. 5(a), the slide tube 212 is bolted to the upper surface and the front surface of the base tube 210, so that it becomes immovable with respect to the base tube 210. As shown in FIG. 5(b), by loosening the bolts, attachment / detachment from the base tube 210 and adjustment of the protruding amount are possible.

[0016] As shown in FIG. 5, the leg connection tube 213 is a square pipe having the same opening size as the base tube 210, and is connected to the protruding end of the slide tube 212 with its longitudinal direction being the front-rear direction perpendicular to the axis of the slide tube 212. On the front end side of the lower surface of the leg connection tube 213, the same cushioning material 203 as the cushioning material 203 attached to the base tube 210 is attached. On the side surface of the leg connection tube 213 facing the protruding end of the slide tube 212, a connection tube 215 to which the slide tube 212 is connected is fixed with an axis parallel to the axis of the slide tube 212. The connection tube 215 is a square pipe having the same opening size as the leg connection tube 213, and the slide tube 212 is coaxially inserted into the connection tube 215. The inserted slide tube 212 is bolted from the front surface of the connection tube 215, so that the slide tube 212 is connected in an immovable state, and by loosening the bolts, attachment / detachment from the connection tube 215 is possible. Normally, the slide tube 212 is inserted and fixed, and it is also optional to replace it with a slide tube 212 of a different length according to the situation, or to remove it for the purpose of improving efficiency during storage or transportation.

[0017] A leg tube 214 is connected to the leg connection tube 213 of such an extension body 211. As shown in FIGS. 5(a) and 5(b), the leg tube 214 is a square pipe and is coaxially inserted into and removably inserted into the front opening of the leg connecting tube 213 and is slidable. The leg tube 214 can be adjusted in the protruding amount by sliding it in the insertion / removal direction (front-rear direction) with respect to the leg connecting tube 213. An adjuster 204 is screwed into the front end of the leg tube 214. By rotating this adjuster 204 in the tightening direction or the loosening direction to adjust the height position, the base portion main body 21 can be leveled.

[0018] [Effect of the base portion] Due to the above-described configuration, the base portion 2 supports the lower support member 10 of the column 1 in a detachable manner with an easy configuration of inserting and removing the support tube 20. Therefore, the erection work of the column 1 can be performed easily and quickly. In addition, since the base portion main body 21 is detachably integrated with an easy configuration of inserting and removing the three members of the base tube 210, the extension body 211, and the leg tube 214, the base portion main body 21 can be easily and quickly divided into three parts and can be assembled. Since the base portion main body 21 that is divided into three parts becomes a compact state, it is convenient during transportation and storage. Moreover, since the extension body 211 inserted into the base tube 210 and the leg tube 214 inserted into the leg connecting tube 213 of the extension body 211 are slidable, the protruding amount of the extension body 211 with respect to the base tube 210 and the protruding amount of the leg tube 214 with respect to the leg connecting tube 213 can be arbitrarily adjusted by an easy method of sliding. By adjusting the protruding amounts of the extension body 211 and the leg tube 214, the base portion 2 can be normally installed regardless of the shape of the installation location and obstacles, and can be installed in a well-balanced manner according to the height of the column 1.

[0019] [Configuration of the loading platform] As shown in FIGS. 1 to 3, the loading platform 3 is for placing the load C and ascending and descending along the column 1. As shown in FIGS. 3 and 6, the loading platform 3 includes a back portion 30, a bottom portion 31, and a slider 6, and the slider 6 is arranged so as to surround the outside of the column 1. The bottom portion 31 is arranged in front of the lower end of the back portion 30 of the loading platform 3, and the slider 6 is attached behind the back portion 30. As shown in FIG. 6, the back portion 30 is composed of two backrest rods 301 arranged at intervals in the left-right direction and an upper backrest rod 302 fixed so as to span the upper end portions of the two backrest rods 301. The interval between the inner surfaces (opposing sides) of the two backrest rods 301 is set to be equal to the full width of the slider 6, and the slider 6 is attached to the inner surfaces of the two backrest rods 301. The upper backrest rod 302 has a length corresponding to the full width of the loading platform 3, supports the load C placed on the bottom portion 31, and can prevent the backrest rods 301 from swaying by fixing the backrest rods 301 to each other. Further, the upper backrest rod 302 is provided with two extension rods 303 protruding from the left and right ends. The extension rod 303 is slidable and detachable in the left-right direction with respect to the upper backrest rod 302, and the protruding amount can be adjusted according to the width of the load C, and it can be attached and detached as needed.

[0020] The bottom portion 31 is for placing the load C, and as shown in FIG. 6, it is formed in a rectangular shape in plan view having a front-rear width that allows the load C to be reliably placed. As shown in FIG. 7, the bottom portion 31 and the backrest rod 301 are pivotally supported so as to be rotatable with respect to each other about an axis in the left-right direction on the lower end side of the backrest rod 301, and by rotating, it can be brought into the load-bearing state shown in FIG. 6 and the storage state shown in FIG. 7. In the load-bearing state, as shown in FIG. 6, the bottom portion 31 protrudes forward at a substantially right angle with respect to the back portion 30, and the load C can be placed on the upper surface. In the storage state, as shown in FIG. 7, the back portion 30 and the bottom portion 31 are folded so as to face each other in parallel. At this time, by removing the slider 6 from the back surface portion 30, the convex portion on the rear surface side of the back surface portion 30 disappears, so that it can be efficiently carried and stored without being bulky during transportation or storage. The shaft support structure of the bottom portion 31 is a structure in which two angle members 312 fixed in the longitudinal direction on the rear surface of the bottom portion 31 with the vertical direction as the longitudinal direction are shaft-supported from the left and right by the backrest rod 301, and a stopper (not shown) for maintaining a substantially right-angled state of the bottom portion 31 with respect to the back surface portion 30 in the load-bearing state is provided.

[0021] [Configuration of the slider] As shown in FIGS. 2, 3, and 6, the slider 6 includes a pulley mounting portion 60 for mounting a pulley 41 around which a wire 40 of the hoist 4 is wound, and a guide roller 61 for guiding the lifting and lowering of the slider 6 along the support column 1. As shown in FIG. 6, the slider 6 is formed in a frame shape in which left and right frame bodies 62 are formed by arranging frame rods 620 vertically and connecting the frame rods 620 with vertical rods 621, and the left and right frame bodies 62 are connected by upper and lower connecting rods 622. The front end of the frame body 62 is attached to the back surface portion 30 by bolting, and can be removed from the back surface portion 30 as shown in FIG. 7 by removing the bolts. In the upper frame rod 620 of the right frame body 62 in FIG. 6(c), the pulley mounting portion 60 is provided, and it is longer than the other three frame rods 620.

[0022] [Configuration of the pulley mounting portion] As shown in FIG. 8, the pulley mounting portion 60 is hook-shaped. With the hook portion 601 on the rear end side exposed downward, a support portion 602 connected to the hook portion 601 is inserted into the rear end of the frame rod 620 made of a square pipe from the inside, and the front end portion of the support portion 602 is rotatably supported by a horizontal axis 603. As shown in FIGS. 8(a) and 8(b), such a pulley mounting portion 60 is configured to hold the state in which the U-shaped pulley support 42 for supporting the pulley 41 is fitted to the frame rod 620 by engaging the hook portion 601 of the pulley mounting portion 60 with the rear end of the lower surface of the pulley support 42. There is a space between the lower end of the pulley 41 and the inner lower end surface of the pulley support 42 and between the left and right inner surfaces of the pulley support 42 that is larger than the size of the end surface of the frame rod 620, so that the open portion on the front side of the pulley support 42 can be fitted from the rear end of the frame rod 620. To attach the pulley 41, as shown in Fig. 8(c), while holding the pulley attachment portion 60 in a rotated upward state, fit the open portion on the front side of the pulley support 42 from the rear end of the frame rod 620, and rotate the pulley attachment portion 60 downward to engage the hook portion 601 with the rear end of the lower surface of the pulley support 42, whereby the pulley 41 can be attached to the slider 6. To remove the pulley 41, rotate the pulley attachment portion 60 upward to release the engagement of the hook portion 601, and while maintaining the disengaged state, pull out the pulley support 42 to remove it. The rotation range of the pulley attachment portion 60 is such that at the upper rotation limit, the hook portion 601 does not interfere with the attachment and detachment operation of the pulley support 42.

[0023] [Configuration of the guide roller] As shown in Fig. 6(c), the guide roller 61 is pivotally supported inside the upper and lower frame rods 620 on both the left and right so as to face the front and rear surfaces of the support column 1. When the slider 6 moves up and down, the guide roller 61 contacts and rolls on the front and rear surfaces of the support column 1, so that the slider 6 can be smoothly moved up and down. As a result, the lifting and lowering of the loading platform 3 accompanying the lifting and lowering of the slider 6 becomes smooth.

[0024] Such a slider 6 can be attached to the support column 1 by fixing it to the loading platform 3 and inserting the support column 1 so that the guide roller 61 faces the front and rear surfaces of the support column 1. When inserting the slider 6 into the support column 1, it is advisable to insert the slider 6 from above the lower support column member 10 with only the lower support column member 10 standing on the base portion 2. After inserting the slider 6, the intermediate support column member 11 and the upper support column member 12 are sequentially connected, whereby the loading platform 3 can be attached to the support column 1 in a state where it can move up and down freely.

[0025] [Effect of the Loading Platform] The loading platform 3 configured as described above can be switched between a load-bearing state and a storage state by a simple operation of rotating the bottom portion 31 with respect to the back portion 30. The slider 6 is attached to the loading platform 3 in the load-bearing state, and the loading platform 3 can be attached by a simple operation of inserting the slider 6 into the lower support member 10 erected on the base portion 2 from above. In the storage state, the loading platform 3 can be made compact by removing the slider 6 and folding the bottom portion 31, and it can be efficiently transported and stored without taking up much space during transportation or storage. Also, the pulley 41 around which the wire 40 of the hoist 4 is wound can be attached to and detached from the slider 6 by the pulley attachment portion 60 provided on the slider 6, and it can be attached and detached by a simple operation of engaging and disengaging the hook portion 601 with respect to the pulley support 42 by the rotation of the pulley attachment portion 60. Further, when the loading platform 3 is lifted and lowered, the guide roller 61 guides the lifting and lowering of the slider 6 while contacting the front and rear surfaces of the support column 1, so that the loading platform 3 can be lifted and lowered smoothly without rattling. Thereby, displacement of the load C and the like can be prevented, and the load C can be reliably transported.

[0026] [Configuration of the Hoist] As shown in FIG. 3, the hoist 4 incorporates a winding-up portion (not shown) for winding up the wire 40, one end of the wire 40 is connected to and wound around this winding-up portion, and the pulley 41 is wound around the wire 40. The hoist 4 is detachably suspended via a hook 43 from a hoist support member 5 attached to the top of the support column 1. The wire 40 has a hook 401 attached to the other end, and by detachably hooking this hook 401 on the hoist support member 5, the other end of the wire 40 becomes stationary. The pulley 41 has the wire 40 wound around it, and is a movable pulley that moves up and down by the wire 40 that is wound up and paid out at one end by the winding-up portion. When the wire 40 is wound up and paid out on the winding-up portion side, the pulley 41 moves up and down, and the loading platform 3 is moved up and down by the movement of this pulley 41.

[0027] [Effect of the hoist] The hoist 4 configured as described above can be easily attached by the operation of hooking it on the hoist support member 5, and can be easily removed by removing it from the hoist support member 5. Also, by hooking the hook 401 of the wire 40 on the hoist support member 5, the pulley 41 becomes a movable pulley structure, and by attaching this pulley 41 to the slider 6 via the pulley attachment portion 60, the loading platform 3 can be lifted and lowered with a small lifting force. Also, as described above, the pulley 41 can be attached and detached to and from the slider 6 via the pulley attachment portion 60, and can be attached and detached while being wound around the wire 40. Note that the hoist 4 is not limited to the configuration having the pulley 41, and may be configured to directly connect the end of the wire 40 to the slider.

[0028] [Configuration of the hoist support member] As shown in FIGS. 3 and 9, the hoist support member 5 is attached to the apex of the upper support member 12 of the support column 1. As shown in FIG. 9, the hoist support member 5 is detachable from the upper support member 12 and can be divided into two members. The hoist support member 5 is composed of two members, a support rod 50 inserted into and removed from the upper support member 12 and a rotary support rod 51 inserted into and removed from the support rod 50.

[0029] As shown in FIG. 9, the support rod 50 includes a rectangular cross-section angular insertion portion 501 inserted into and removed from the upper support member 12 downward, and a circular cross-section round insertion portion 502 above the insertion portion 501. Also, a fall prevention portion 503 is provided between the angular insertion portion 501 and the round insertion portion 502. When the angular insertion portion 501 is inserted into the upper support member 12, the fall prevention portion 503 is placed on the opening edge 120 of the upper support member 12, so that the support rod 50 can be held at the apex of the upper support member 12. The angular insertion part 501 has an outer circumference that fits snugly inside the inner circumference of the upper support member 12 and is sized such that it can be easily inserted, allowing for easy insertion and removal, and preventing rotation about the axis with respect to the upper support member 12 when inserted. The round insertion part 502 is inserted into the inner circumference of the round insertion part 510, which will be described later, of the rotary support rod 51, and rotatably supports the round insertion part 510 about the axis.

[0030] As shown in FIG. 9, the rotary support rod 51 is composed of the aforementioned round insertion part 510 and a hoist suspension part 511 fixed to the upper end of the round insertion part 510. The inner circumference of the round insertion part 510 is sized to fit snugly around the outer circumference of the round insertion part 502, allowing for free rotation about the axis and easy insertion and removal. The hoist suspension part 511 is composed of a horizontal rod 5110 with one end fixed to the upper end of the round insertion part 510 and a vertical rod 5111 fixed to the other end. A pulley 52 is fixed to the horizontal rod 5110, and a rope 520 (see FIG. 15) is wound around this pulley 52 so that various tools, parts, and the hoist 4 can be unloaded to the upper floor using the pulley 52 and the rope 520. The vertical rod 5111 is provided with a hoist attachment part 53 for hooking the hook 43 of the hoist 4 and a wire-side hooking part 54 for hooking the hook 401 of the wire 40. The hoist attachment part 53 is fixed to the lower end side of the vertical rod 5111 and is capable of suspending the hoist 4 when the hook 43 of the hoist 4 is hooked. The wire-side hooking part 54 protrudes in the direction of the round insertion part 510 on the surface of the vertical rod 5111 on the side of the round insertion part 510. As shown in Fig. 3, when the hook 43 of the hoist 4 and the hook 401 of the wire 40 are hooked on the respective hooking parts 53 and 54, the pulley 41 is arranged to be positioned directly above the pulley mounting part 60 of the frame rod 620 in the slider 6. The hoist mounting part 53 and the wire-side hooking part 54 are arranged in this way. The protruding degree of the wire-side hooking part 54 is such that when the hook 401 of the wire 40 is hooked, the hook 401 can be hooked to such an extent that the wire 40 does not interfere with the hoist 4.

[0031] [Effect of hoist support member] Such a hoist support member 5 can rotate the rotating support rod 51 relative to the support rod 50, and as shown in Fig. 10, it can be changed from a state where the vertical rod 5111 is positioned forward with the support column 1 as a boundary to a state where it is positioned rearward. When the hoist 4 is suspended from the hoist support member 5, as shown in Figs. 10(a) and (b), by orienting the vertical rod 5111 forward (towards the building B side), the hoist mounting part 53 and the wire-side hooking part 54 are located on the building B side, so that the operation of suspending the hoist 4 from the building B side becomes easy. Also, after suspending the hoist 4, by rotating the rotating support rod 51 relative to the support rod 50 and orienting the vertical rod 5111 rearward, the pulley 41 is positioned directly above the pulley mounting part 60 of the frame rod 620 in the slider 6, so that the installation work of the pulley 41 can be carried out quickly. Note that the configuration of the hoist support member 5 only needs to be a configuration that can at least suspend the hoist 4.

[0032] [Assembly procedure of the hoist] Next, the assembly procedure of the hoist A will be described with reference to the assembly procedure diagrams (1) to (11) illustrated in Figs. 11 to 17.

[0033] The following first to fourth steps are steps for constructing a part of the base part 2, steps for installing the slider 6, and steps for erecting the support column 1. First step (Fig. 11(1)): Place the base pipe 210 on the ground with the support pipe 20 facing forward, insert the extension body 211 from the left and right directions into the opening of the base pipe 210, and bolt it in place. In the first step, when positioning the base pipe 210 and the protruding amount of the extension body 211 with respect to the base pipe 210, select the optimal location according to the distance from the building and the place for lifting the load. Second step (Fig. 11(2)): Insert the lower support member 10 into the support pipe 20 and bolt it in place. Third step (Fig. 11(3)): Install the slider 6 on the lower support member 10. In the third step, if the loading platform 3 is attached to the slider 6 in advance, the work can be carried out efficiently. Fourth step (Fig. 12(4)): Connect the intermediate support member 11 to the lower support member 10 via the connecting joint 100, and connect the upper support member 12 to the intermediate support member 11 via the connecting joint 100 to erect the support 1.

[0034] The following fifth step is the step of attaching the hoist support member 5. Fifth step (Fig. 13(5)): Attach the hoist support member 5 to the apex of the upper support member 12. In the fifth step, the attachment work of the hoist support member 5 is carried out from the third floor side of the building B. In order to facilitate the subsequent seventh step also carried out from the building B side, the vertical rod 5111 side of the hoist support member 5 is directed forward (towards the building B side).

[0035] The following sixth step is the step of completing the base part 2. Sixth step (Fig. 14(6-1)(6-2)): Complete the base part 2 by inserting the leg pipe 214 into the leg connecting pipe 213. In the sixth step, rotate the adjuster 204 of the leg pipe 214 to adjust in order to level the base part 2.

[0036] The following seventh and eighth steps are the steps of attaching the hoist 4. Step 7 (Fig. 15(7)): With the vertical rod 5111 of the hoist support member 5 facing forward, wind the rope 520 around the pulley 52 of the hoist support member 5 from the third floor side of the building B, lower one end on the rear side downward, connect it to the hook 43 of the hoist 4, and pull down the other end on the front side of the rope 520 downward to lift the hoist 4. In Step 7, the hoist 4 may be lifted with the hook 401 of the wire 40, for example, hooked on the hook 43 of the hoist 4. Step 8 (Fig. 15(8)): Remove the rope 520 connected to the hook 43 of the lifted hoist 4, hook the hook 43 on the hoist mounting portion 53 of the hoist support member 5, and further hook the hook 401 of the wire 40 on the wire side hooking portion 54 of the hoist support member 5, whereby the hoist 4 can be attached to the hoist support member 5. In Step 8, connect a power cable to the hoist 4 (not shown).

[0037] The following Step 9 and Step 10 are steps of lowering the pulley 41. Step 9 (Fig. 16(9)): Rotate the hoist support member 5 to the side opposite to the building B to turn the vertical rod 5111 backward. Step 10 (Fig. 16(10)): Feed out the wire 40 from the hoist 4 by operating an operation switch (not shown) connected to the aforementioned power cable to lower the pulley 41. Lower the pulley 41 to a position where the pulley 41 can be attached to the pulley mounting portion 60 provided on the slider 6.

[0038] The following Step 11 is a step of attaching the pulley 41 to the pulley mounting portion 60 provided on the slider 6. Step 11 (Fig. 17(11)): Rotate the pulley mounting portion 60 upward, fit the pulley support 42 supporting the lowered pulley 41 into the frame rod 620, and rotate the pulley mounting portion 60 downward to attach the pulley 41 to the slider 6.

[0039] By sequentially performing the above-described first to eleventh steps, the hoist A as shown in FIG. 18 can be assembled.

[0040] [Effect of the hoist] The hoist A having the above-described configuration has a simple structure and can be assembled and disassembled quickly, so that the setting time can be shortened, and when disassembled, efficient transportation and storage can be performed.

[0041] As described above, the hoist according to the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and design changes and the like within the scope not departing from the gist of the present invention are also included in the present invention.

[0042] In addition, unless there are particular contradictions or problems in the purpose and configuration etc. of the above-described embodiments, it is possible to divert and combine the technologies of each other.

Explanation of reference numerals

[0043] A: Hoist B: Building C: Cargo 1: Support column 2: Base part 3: Loading platform 4: Hoist 5: Hoist support member 6: Slider 10: Lower support column member 11: Intermediate support column member 12: Upper support column member 100: Connecting joint 20: Support pipe 21: Base part body 22: Angle 210: Base pipe 201: Receiving part 212: Slide pipe 213: Leg connecting pipe 214: Leg pipe 204: Adjuster 30: Back part 31: Bottom part 301: Backrest rod 302: Upper backrest rod 303: Extension rod 40: Wire 41: Pulley 42: Pulley support 43: Hook 401: Hook 50: Support rod 51: Rotating support rod 501: Angular insertion part 502: Round insertion part 503: Fall prevention part 510: Round inserted part 511: Hoist hanging part 5110: Horizontal rod 5111: Vertical rod 52: Pulley 53: Hoist mounting part 54: Wire side hooking part 61: Guide roller 620: Frame rod 621: Vertical rod 62: Frame body 622: Connecting rod 601: Hook part 602: Support part 603: Shaft

Claims

【Claim 1】 comprising a support column and a loading platform, the support column is vertically self-standing by being supported on a base portion, the loading platform is guided along the support column to move up and down, and is composed of a back surface portion whose lower end is inclined in a direction away from the support column with respect to the support column, and a bottom portion rotatably attached to the back surface portion, a storage state in which the bottom portion and the back surface portion are parallel, and a load receiving state in which the bottom portion is substantially perpendicular to the back surface portion can be achieved A cargo lift characterized by the above.

Images