JP3062393U - Material suspension equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conventional material having a material suspending means such as a chain block in which the material can be lifted and lowered, and a support member for supporting the material suspending means. In the hanging device, a large gantry equipped with a transfer device is required to transport the material suspended by the material suspending means to other places. The simplicity of the material suspension device has been impaired, such as an increase in the burden of transporting the device itself. SOLUTION: In the present invention, a supporting wire 31 stretched in a direction different from a lifting direction of a material lifted and lowered by a material hanging means 2 is wound and rotatably supported by the supporting wire 31. A friction block such as a chain block having a rotating member 21 having a rotating member 21 and a driving means 22 for driving the rotating member is provided in the load suspending means 2, thereby facilitating attachment and transportation. In this case, the above-mentioned material hanging means is handled more easily.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a load suspending device, and more particularly, to a load suspending means on which a suspending wire such as a chain for suspending a load is wound, and to support the load suspending means. The present invention relates to a cargo hanging apparatus provided with the support member.

[0002]

[Prior art]

 For example, in factories and the like, crane devices are frequently used to lift and lower heavy objects and transport them. However, the operating range of the crane devices is predetermined, and when handling heavy objects outside this operating range. It is convenient to use a small material suspension device such as a chain block. The chain block includes a hand-wound chain block that pulls a hand chain by hand and hoists a suspended load chain, and an electric chain block that hoists electrically. It is described in, for example, JP-A-338476. Since such a chain block is used for lifting and lowering the load, it is supported at a higher position than the load. For example, as described in the above publication, In many cases, hooks provided at the top of the chain block are locked at a high place. When the material to be lifted and lowered by the chain block is transported in the horizontal direction, for example, a transport device capable of moving in the horizontal direction is provided on a gantry or the like, and the hook of the chain block is locked to the transport device.

[0003]

[Problems to be solved by the invention]

 In order to carry up and down the material using a conventional small material suspension device such as a chain block, it is necessary to use a platform equipped with a transport device as described above. As a result, the burden of transporting the load hanging device itself has increased, and the simplicity of the load hanging device has been impaired. In order to solve such problems in the prior art, the present invention has improved the cargo suspension system, and the support wire such as a chain or wire rope is wound around the support wire so that it can rotate freely. A driving member for driving the rotating member, the driving member being used to drive the rotating member, and a frictional force between the rotating member and the supporting wire. A friction block such as a chain block for extending and moving the supporting wire from the rotating member is provided in the material suspending means for suspending the material so that the material can be moved up and down. It is a main object of the present invention to provide a material hanging device in which the material hanging means can be easily moved in a horizontal direction simply by attaching the material hanging device. Also, in the above-described load suspending device of the present invention, when the supporting wire is not stretched horizontally, the load suspending means is moved along the supporting wire by a load such as a heavy object. It may be unintentional to fall down, which is dangerous. Therefore, another object of the present invention is to move the friction block in two directions on the supporting wire even when the supporting wire is not stretched on a horizontal surface in the load suspending device according to the present invention. The purpose of the present invention is to prevent the danger that the above-mentioned load suspending means may unintentionally drop along the supporting wire.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 includes a material suspending means for suspending the material so that the material can be lifted and lowered, and a support member for supporting the material suspending means. In the load suspending device, the support member includes a support wire stretched in a direction different from the elevating direction of the load lifted and lowered by the load suspending means, and the support wire is wound around the support member. A rotating member rotatably supported by the supporting wire, and driving means for driving the rotating member. The driving means drives the rotating member to rotate the rotating member. A load, wherein the load suspending means includes a friction block such as a chain block that draws out and moves the support wire from the rotating member by a frictional force between a member and the support wire. It is configured as a material suspension device. According to a second aspect of the present invention, in the load suspending device according to the first aspect, when the friction block comes into direct or indirect contact with the rotating member, the predetermined rotation of the rotating member is prevented. A rotation direction regulating means for regulating the rotation in the direction, wherein when the rotating member attempts to rotate in the predetermined direction, the rotation direction regulating means comes into contact with the rotating member, and the driving means The gist of the invention is that the rotation direction regulating means and the rotating member are separated from each other when trying to rotate in the predetermined direction.

According to a third aspect of the present invention, there is provided the material suspension apparatus according to the second aspect, wherein the friction block is provided when the driving means is to rotate in the predetermined direction or the opposite direction. The driving means is connected to the driving means by being engaged with a screw portion provided at one end or the other end in the rotation center axis direction of the driving means so as to move, and is rotated integrally with the rotating member. Shaft, an annular member meshed with the other end side of the screw portion of the rotating shaft by the driving means, and a ring-shaped plate centered on the rotating shaft. A member disposed between the driving means and the annular member, wherein the screw of the rotating shaft is moved when the rotating shaft moves toward the one end relative to the driving means. The annular member in contact with the other end of the A clutch member pressed by a moving means to integrally connect the rotation direction regulating means and the rotating shaft; and a driving member provided on the one end side of the rotating shaft to rotate integrally with the rotating shaft. An abutting member, wherein when the rotating member attempts to rotate in the predetermined direction, the rotating shaft rotates integrally with the rotating member in the predetermined direction, and the rotating shaft is driven by the driving means. Relative to the one end, the clutch member restricts the rotation of the rotation member in the predetermined direction by integrally connecting the rotation direction restriction means and the rotation shaft. When the drive means is to rotate in the predetermined direction, the drive means moves to the one end side of the rotation shaft, and the rotation direction regulating means by the clutch member and the rotation shaft are connected. When the connection is released, the drive There as its gist that obtained by transmitting the driving of the drive means to said pivot member connecting the said drive means and the rotating shaft by contact with the contact member.

According to a fourth aspect of the present invention, there is provided the material suspension device according to the third aspect, wherein the rotation direction regulating means is disposed between the driving means and the annular member. A ratchet machine having serrated teeth on its peripheral surface, and engaging with the teeth of the ratchet machine, and oscillating when the ratchet machine tries to rotate in the opposite direction to the predetermined direction. A claw member for allowing rotation of the ratchet board and, when the ratchet board is about to rotate in the predetermined direction, locking the ratchet board and restricting the rotation of the ratchet board. And Further, the invention according to claim 5 has as its gist that, in the material suspension device according to any one of claims 1 to 4, the supporting wire is a chain or a wire rope.

[0007] In the load suspending device according to any one of claims 1 to 5, the supporting wire such as a chain or a wire rope is rotatably supported by the supporting wire by being wound. A rotating member, and driving means for driving the rotating member, wherein the driving member is used to drive the rotating member, and the rotating member is driven by a frictional force between the rotating member and the supporting wire. A friction block, such as a chain block, that pulls out and moves the above-mentioned supporting wire from the material, is provided in the material suspending means for suspending the material so that it can be raised and lowered. It becomes possible to move the above-mentioned material hanging means on the wire for use. As a result, a large gantry equipped with a transfer device or the like is required as another support member for the material hanging means in order to move the material hanging means and transport the material in the horizontal direction. For example, at home construction sites, when loading heavy goods loaded on trucks onto the ground or transporting them to a high place, such as chain blocks with a wide range of use that can be easily transported and installed, such as chain blocks An apparatus can be provided.

Further, in the load suspending device according to any one of claims 2 to 4, when the friction block comes into direct or indirect contact with the rotating member, A rotation direction restricting means for restricting rotation in the predetermined direction, wherein when the rotation member attempts to rotate in the predetermined direction, the rotation direction restriction means comes into contact with the rotation member; When the driving means attempts to rotate in the predetermined direction, the rotation direction regulating means and the rotating member are configured to be separated from each other. Therefore, even if the supporting wire is not stretched on a horizontal plane, for example, While allowing the friction block to move in two directions on the supporting wire, the load suspending means descends unintentionally along the supporting wire due to the load of the load when the driving means is stopped. To prevent the danger of doing Wear. When the rotating member attempts to rotate in the predetermined direction, the rotation direction restricting means comes into contact with the rotating member, and when the driving means attempts to rotate in the predetermined direction, the rotation direction restricting means does not. As a configuration in which the rotating member is separated from the rotating member, for example, a configuration as described in claim 3 can be adopted. Further, the rotation direction regulating means may employ, for example, a configuration as described in the fourth aspect. Further, a chain or a wire rope can be used as the supporting wire in the load suspending device according to any one of the first to fourth aspects.

[0009]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. The following embodiment is a specific example of the present invention and does not limit the technical scope of the present invention. Here, FIG. 1 is a diagram for explaining an example of the appearance and use of the material hanging device according to an embodiment of the present invention, and FIG. 2 is a detailed external view of the material hanging device. 3 is a sectional view taken along the line HH in FIG. 2, FIG. 4 is a sectional view taken along the line AA in FIG. 3, FIG. 5 is a sectional view taken along the line BB in FIG. FIG. 6 is a cross-sectional view taken along the line CC in FIG. 3, and FIG. 7 is an external side view of the above-mentioned load suspending device. The material suspension device according to one embodiment of the present invention conveys heavy objects such as wood and metal bars loaded on a truck bed from a bed to a workplace at a higher place, for example, at a residential building site. , Or conversely, it is embodied as a material hanging device for carrying a material from a high place downward, as shown in FIG. 1, for hanging a material 1 so that the material 1 can be lifted and lowered. It is the same as a conventional apparatus in that it comprises a load suspending means 2 including a chain block 20a, and a support member 3 for supporting the load suspending means 2. On the other hand, the material suspending device according to the present embodiment is different from the conventional device in that the support member 3 is moved by the material suspending means 2 as shown in FIGS. A supporting chain (an example of a supporting wire) 31 is stretched in a direction YY ′ different from a lifting direction XX ′ of the material 1 to be raised and lowered. A rotating member 21 such as a chain wheel which is supported by the supporting chain 31 by being rotated by being wound around the supporting chain 31, a driving means 22 for driving the rotating member 21; The driving member 22 is used to drive the rotating member 21, and the supporting chain 31 is extended from the rotating member 21 by the frictional force between the rotating member 21 and the supporting chain 31. Chain block for transport (friction block One example) 20b is that comprising the above load material hanging means 2.

In the present embodiment, as shown in FIG. 1, the support chain 31 is stretched from the carrier of the truck 4 to a work place located at a higher place, so that the material 1 on which the material 1 is suspended is suspended. A mechanism is provided for preventing the suspension means 2 from unintentionally descending along the supporting chain 31 due to its weight. Therefore, in the load suspending device according to the present embodiment, the transport chain block 20b of the load suspending means 2 is directly or indirectly connected to the rotating member 21 as shown in FIG. And a rotation direction restricting means 24 for restricting the rotation of the rotating member 21 in the direction of arrow R by contact with the driving means 21 when the driving means 21 attempts to rotate in the direction of arrow R 'or R. The sprocket 223 of the driving means 22 is engaged with and connected to the sprocket 223 by a screw portion 2332 provided so as to move in one end or the other end of the rotation center axis direction, for example, the arrow Z 'direction or the Z direction. And a rotating shaft 233 connected so as to rotate integrally with the rotating member 21 and the sprocket 223 of the screw portion 2332 of the rotating shaft 233 biting toward the arrow Z side. An annular member 243 and an annular plate-shaped member centered on the rotating shaft 233, which is disposed between the sprocket 223 and the annular member 243, and wherein the rotating shaft 233 is The annular member 243 and the sprocket, which are in contact with the arrow Z-side end 2332a of the threaded portion 2332 of the rotation shaft 233 when the sprocket 223 is moved relative to the sprocket 223 in the arrow Z 'direction. The clutch members 261 and 262 which are pressed by the rotation direction 223 and integrally connect the rotation direction restricting means 24 and the rotation shaft 233, and the clutch members 261 and 262 which are provided on the rotation Z 233 side of the rotation shaft 233 with respect to the sprocket 223. A rotating shaft 233 and a contact member 27 that rotates integrally with the rotating shaft 233. When the rotating member 21 attempts to rotate in the direction of the arrow R ', the rotating shaft 233 rotates the rotating portion. 21 and the rotating shaft 233 moves in the direction of the arrow Z 'relative to the sprocket 223 and the clutch members 261 and 262 rotate the rotation direction restricting means. By integrally connecting the rotation shaft 24 and the rotation shaft 233, the rotation of the rotation member 21 in the direction of the arrow R 'is restricted, and when the sprocket 223 attempts to rotate in the direction of the arrow R', The sprocket 223 moves to the arrow Z 'side of the rotation shaft 233 to release the connection between the rotation direction restricting means 24 and the rotation shaft 233 by the clutch members 261 and 262, and the sprocket 223 The sprocket 223 and the rotating shaft 233 are connected to each other by being in contact with the contact member 27, and the driving member 2 is connected to the rotating member 21. 2 is transmitted.

The relationship between the configuration in the present invention and the configuration in the specific example will be further described. The driving unit 22 includes a driving motor 221, sprockets 222 and 223, and a chain 224. The rotating member 21 is connected to a rotating shaft 233 via gear members 231 and 232. The rotation direction restricting means 24 is disposed between the sprocket 223 and the annular member 243, and has a ratchet disk 241 provided with saw-like teeth on a peripheral surface thereof, and a tooth of the ratchet disk 241. When the ratchet board 241 attempts to rotate in the direction of the arrow R, it swings to allow the ratchet board 241 to rotate, and the ratchet board 241 rotates in the direction of the arrow R '. In the case of trying to do so, a pawl member 242 for locking the ratchet board 241 and restricting the rotation of the ratchet board 241 is included.

Hereinafter, the details of the cargo hanging apparatus according to the present embodiment will be described. In the load suspending device, as shown in FIG. 1, the load suspending means 2 is movably suspended on the support chain 31 via a transport chain block 20b. The support chain 31 is, for example, hooked to the fence 41 of the truck 4 and the support member 5 of a work place of a residential building located at a higher place using hooks. When the support chain 31 is used to support the transport chain block 20b, the mounting operation is simpler than mounting the chain block itself at a high place from the beginning. Further, in the operation of stretching the supporting chain 31, if the amount of extension of the supporting chain 31 is changed using the manual chain block 42, the tension of the supporting chain 31 can be easily adjusted. The load suspending means 2 suspended on the support chain 31 includes a load suspending chain block 20a for lifting and lowering the load 1 and a transport chain block movable on the support chain 31. The structure of the chain block 20a for suspending the load is the same as that of a known chain block, and a description thereof will be omitted. As shown in FIG. 2, the housing 25 of the transport chain block 20b is swingably connected to the load hanging chain block 20a by bolts 251. That is, if the transport chain block 20b moves on the support chain 31, the load hanging chain block 20a also moves along the support chain 31. As shown in FIGS. 3 and 6, the supporting chain 31 is alternately wound with the rotating bodies 211 and 212 on the rotating member 21 of the transport chain block 20b. Hanged. By rotating the rotating member 21, the transport chain block 20b draws out the supporting chain 31 by the frictional force between the rotating member 21 and the supporting chain 31, and moves on the supporting chain 31. . As shown in FIGS. 3 to 5, the rotating member 21 is hollow, and has a rotating shaft 233 inserted therein. A gear portion 2331 having a gear is provided at an end of the rotation shaft 233 in the direction of the arrow Z, and a screw portion 2332 having a thread is provided near the end of the direction of the arrow Z '. The gear portion 2331 is engaged with the large diameter portion 2321 of the gear member 232, and when the rotation shaft 233 rotates, the gear member 232 rotates in the opposite direction. Further, the small diameter portion 2322 of the gear member 232 is engaged with the gear member 231. As shown in FIG. 4, the gear member 231 is fitted with the rotating member 21 and rotates integrally with the rotating member 21. When the rotation shaft 233 is driven to rotate by the connection to the rotation shaft 233, the gear member 232, the gear member 231 and the rotation member 21 as described above, the rotation member 21 is rotated, and the rotation is performed. The support chain 31 is extended from the transport chain block 20b by the frictional force between the member 21 and the support chain 31, and the load suspending means 2 moves on the support chain 31. .

The driving force of the rotating shaft 233 is given by a driving motor 221 as shown in FIGS. 2, 3, and 7, and a sprocket 222, a chain 224, and an arrow Z of the rotating shaft 233. The power is transmitted to a mechanism including a sprocket 223, a ratchet board 241, a pawl 242, an annular member 243, and clutch members 261 and 262 provided at the end in the 'direction. As the driving motor 221, for example, a small electric motor driven at 100 V to 240 V is used. The power of the drive motor 221 is supplied via a power supply line 2211 suspended from the support chain 31, as shown in FIG. A remote controller 2212b is connected to the drive motor 221 via a connection line 2212a suspended from the support chain 31 together with the power supply line 2211. By using the remote controller 2212b, a user can instruct a forward rotation, a reverse rotation, a stop, and the like of the driving motor 221 at a place away from the driving motor 221. Here, in the case of this embodiment, the forward rotation refers to the rotation direction in which the load suspending means 2 rises along the support chain 31, ie, the direction of the arrow R, and the reverse rotation refers to the load suspension. It is assumed that the lower means 2 points in the rotation direction in which the lower means 2 descends along the supporting chain 31, that is, the direction of the arrow R '. Further, the predetermined direction in the present invention indicates the reverse direction in this case, that is, the arrow R '. The rotation of the drive motor 221 is transmitted to the sprocket 223 of the suspension portion 20b via a sprocket 222 and a chain 224 attached to the drive motor 221. The sprocket 223 is fitted with the screw portion 2332 of the rotation shaft 233. For example, when the sprocket 223 rotates forward and rotates in the direction of the arrow R, the sprocket 223 moves in the direction of the arrow Z due to the engagement with the screw portion 2332. When the sprocket 223 moves, the clutch member 261, the ratchet board 241, the clutch member 262, and the annular member 243 are sequentially pressed and integrated, and finally, the annular member 243 is attached to the end 2332a of the screw portion 2332 in the arrow Z direction. The contact state is maintained. In this state, the sprocket 223 and the rotating shaft 233 are integrated by the frictional force of each part, and the rotation of the sprocket 223 is started from the gear portion 2331 of the rotating shaft 233 via the gear members 232 and 231. The information is transmitted to the rotating member 21. Thus, the rotating member 21 rotates forward and rotates in the direction of the arrow R, and the transport chain block 20b moves on the support chain 31 in the direction of the arrow Y. In this way, when the load suspending means 2 is raised to the target position, the user stops the drive motor 221 using the remote controller 2212b, but at this time, depending on the load of the load 1, There is a danger that the material suspension means 2 may be unintentionally lowered. In order to prevent this, a ratchet board 241 and a claw 242 of the rotation direction regulating means 24 are provided.

The ratchet board 241 is engaged with the pawl 242 as shown in FIGS. 3 and 7, and the pawl 242 is used when the ratchet board 241 rotates in the normal rotation direction, that is, in the direction of the arrow R. The ratchet 241 swings along the teeth of the ratchet 241 and does not hinder the rotation of the ratchet 241 in the ascending direction. However, when the ratchet 241 tries to rotate in the reverse direction, that is, in the direction of the arrow R '(downward). Locks the teeth of the ratchet disc 241 to restrict the rotation of the ratchet disc 241 in the reverse direction. That is, when the rotating shaft 233 is to be rotated in the direction of the arrow R ′ integrally with the ratchet board 241, the rotation of the rotating member 21 in the reverse rotation direction is restricted, and the material suspending means is stopped. 2 is prevented from falling. In the above description, the case where the ratchet board 241 and the rotation shaft 233 are integrated by the rotation of the sprocket 223 in the direction of the arrow R has been described. However, the rotation member 21 is kept in a state where the sprocket 223 is stationary. Is rotated in the reverse direction, that is, in the direction of the arrow R ', it is the same as the rotation of the sprocket 223 in the forward direction, that is, in the direction of the above-mentioned arrow R. The rotation shaft 233 is connected. That is, when the rotating member 21 attempts to rotate in the direction of the arrow R ′ due to the load of the load material 1 or the like, the force is applied to the rotating shaft 233 via the gear members 231 and 232 to the direction of the arrow R. 'Try to rotate in the direction. When the rotating shaft 233 attempts to rotate in the direction of the arrow R ', the rotating shaft 233 tends to move in the direction of the arrow Z' with respect to the stationary sprocket 223. When the rotating shaft 233 moves in the direction of the arrow Z ', the end 2332a of the screw portion 2332 of the rotating shaft 233 in the direction of the arrow Z comes into contact with the annular member 243 and the sprocket is stationary. The annular member 243 exerts a force on the ratchet 223 to press the ratchet board 241 and the clutch members 261 and 262. At this time, the ratchet board 241 is connected to the rotation shaft 233 and tries to rotate in the direction of the arrow R ′. However, since the teeth of the ratchet board 241 are locked by the claws 242, The rotation of the rotation shaft 233 in the direction of the arrow R ′ is restricted. Thereby, danger due to unintentional lowering of the material suspension means 2 can be prevented.

However, if the rotation of the rotating member 21 in the reverse direction, that is, the direction of the arrow R ′ is always restricted by the ratchet board 241 and the claw 242, the user intentionally uses the remote controller 2212b. However, even if it is attempted to lower the material suspending means 2, it cannot be lowered. For this reason, the material suspension device according to the present embodiment is configured such that when the sprocket 223 rotates in the reverse direction, the connection between the ratchet board 241 and the rotation shaft 233 is released. Have been. That is, when the sprocket 223 rotates in the reverse direction, that is, rotates in the direction of the arrow R ′ by the driving of the drive motor 221, the sprocket 223 engages with the screw portion 2332 and the sprocket 223 moves in the direction of the arrow Z ′. Moving. At this time, since the clutch members 261 and 262 do not receive the pressing force in the arrow Z direction, the ratchet board 241 is separated from the rotation shaft 233. When the sprocket 223 moves in the direction of the arrow Z ', the sprocket 223 comes into contact with the contact member 27 integral with the rotating shaft 233, whereby the sprocket 223 and the rotating shaft 233 are integrated, and With the rotation shaft 233 separated from the rotation shaft 233, the rotation member 21 is rotated in the reverse direction, that is, in the direction of the arrow R. In this way, in the material hanging device according to the present embodiment, the rotating member rotatably supported by the supporting chain by being wound around the supporting chain, and the rotating member A driving means for driving, the driving means being used to drive the rotating member, and the supporting chain being extended by the frictional force between the rotating member and the supporting chain. By providing a friction block, such as a chain block, in the load suspending means for suspending the load so that the load can be raised and lowered, the tension of the support chain can be achieved simply by stretching the support chain. Can be moved. As a result, a large gantry equipped with a transfer device, etc., with a transport device is required as another support member for the material hanging means in order to move the material hanging means and transport the material in the horizontal direction. For example, at a residential building site, when a heavy object loaded on a truck is dropped on the ground or conveyed to a high place, it can be easily transported and installed. Equipment can be provided. Moreover, in the load hanging device according to the present embodiment, the rotation in the reverse direction is restricted with respect to the rotating member suspended by the support chain, except when the driving member is driven in the reverse direction. Therefore, even when the support chain is not stretched parallel to the horizontal plane, the load suspended by the load while the load suspending means can be moved in two directions on the support chain. It is possible to prevent the danger of the material suspension means being unintentionally lowered by the load.

[0016]

【Example】

 In the above embodiment, the support chain 31 is stretched from the fence 41 on the bed of the truck 4 to the support material 5 at the work site at a high place. However, the present invention is not limited to this. As shown in FIG. 8, a support chain 31 is attached to a support column 80 in a factory or the like, and the support chain 31 is moved to the material suspending means 2 so that the material in the factory or the like is vertically conveyed. Is also good. Such a material hanging device is also an example of the material hanging device in the present invention. In the above embodiment, a chain is used as the supporting wire, but the present invention is not limited to this. For example, another supporting wire such as a wire rope may be used. FIG. 9 to FIG. 11 show the configuration of a material suspension device using a wire rope as a supporting wire. Here, FIG. 9 is a diagram showing the appearance of the friction block of the load suspending device, FIG. 10 is a diagram showing a cross section of the friction block taken along line GG, and FIG. It is a figure showing D section. In FIGS. 9 to 11, the same reference numerals are given to components corresponding to the material hanging device according to the above embodiment.

As shown in FIGS. 9 to 11, the wire rope 32 includes five gears 110, 111, 112, 113, provided in the housing 25 of the friction block 20 b corresponding to the above-mentioned transport chain block. The wire 114 is hung alternately around the wire rope 32 while being wound alternately around a middle groove provided on the peripheral surface of the wire 114. In this manner, the five gears 110,..., 114 are alternately wrapped in a wave shape, and the load suspending means 2 is suspended on the wire rope 32. Can be moved on the wire rope 32 without leaving the wire rope 32. Since the teeth of each of the gears 110,..., 114 are meshed with each other, when one rotates, the other gear also rotates, but of the five gears, only the gear 112 fits integrally with the gear member 231. And is connected to a rotation shaft 233 via gear members 231 and 232. That is, the gear 112 is also an example of the rotating member in the present invention. Since the details are the same as in the above embodiment, the description is omitted. However, also in the load suspending device according to this embodiment, if the rotation shaft 233 is rotated by the driving of the driving motor 221. The gear 112 is also rotated, and the material suspension means 2 including the friction block 20b is moved on the wire rope 32. The same applies to the case where the rotation of the rotating shaft 233 in the above-described reverse direction is restricted unless the sprocket 223 is rotated in the reverse direction. Such a material hanging device is also an example of the material hanging device in the present invention.

In the above-described embodiment, the rotating bodies 211 and 212 around which the support chain 31 is wound are cylindrical. However, the present invention is not limited to this. May be used. In this case, the winding of the support chain 31 around the rotating body 21 becomes smooth, and metal fatigue can be prevented. Such a material hanging device is also an example of the material hanging device in the present invention. Further, in the above embodiment, the frames of the material lifting / lowering chain block 20a and the transport chain block (friction block) 20b are provided separately. However, the present invention is not limited to this. It may be settled. Such a material hanging device is also an example of the material hanging device in the present invention. In the above embodiment and example, the rotating member 21 is connected to the rotating shaft 233 via the gear members 231 and 232, and the driving motor 221 is driven via the rotating shaft 233. However, the gear member 231 and 232 and the rotating shaft 233 are discharged, and a portion corresponding to the screw portion 2332 is directly provided on the rotating member 21. Other configurations may be used. Such a material hanging device is also an example of the material hanging device in the present invention. In the above embodiments and examples, the driving means of the friction block includes an electric motor. However, the present invention is not limited to this, and the driving means may be a means for transmitting a driving force by manual operation. Is included. Such a material hanging device is also an example of the material hanging device in the present invention. Further, in the above-described embodiments and examples, the hand-wound chain block is used as the means for suspending the load 1 so that it can be raised and lowered. However, the present invention is not limited to this. Alternatively, other small material suspension means may be used. Such a material hanging device is also an example of the material hanging device in the present invention.

[0019]

[Effect of the invention]

 As described above, in the load suspending device according to any one of claims 1 to 5, the supporting wire such as a chain or a wire rope is wound around the supporting wire so as to be rotatable. And a driving means for driving the rotating member. The driving means is used to drive the rotating member, and a frictional force is generated between the rotating member and the supporting wire. By providing a friction block such as a chain block for extending and moving the support wire from the rotating member in the load suspending means for suspending the load so as to be able to move up and down, the tension can be obtained simply by stretching the support wire. The load suspending means can be moved on the supporting wire. As a result, a large gantry equipped with a transfer device or the like is required as another support member of the material suspending means to move the material suspending means and transport the material in the horizontal direction. For example, at home construction sites, when loading heavy goods loaded on trucks onto the ground or transporting them to high places, such as chain blocks with a wide range of use that can be easily transported and installed, such as chain blocks. A suspension device can be provided.

Further, in the load suspending device according to any one of claims 2 to 4, when the friction block comes into direct or indirect contact with the rotating member, A rotation direction restricting means for restricting rotation in the predetermined direction, wherein when the rotation member attempts to rotate in the predetermined direction, the rotation direction restriction means comes into contact with the rotation member; When the driving means attempts to rotate in the predetermined direction, the rotation direction regulating means and the rotating member are configured to be separated from each other. Therefore, even if the supporting wire is not stretched on a horizontal plane, for example, While allowing the friction block to move in two directions on the supporting wire, the load suspending means descends unintentionally along the supporting wire due to the load of the load when the driving means is stopped. To prevent the danger of doing Wear.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining an example of an appearance and a use form of a material hanging device according to an embodiment of the present invention.

FIG. 2 is a detailed external view of the load suspending device.

FIG. 3 is a sectional view taken along line HH in FIG. 2;

FIG. 4 is a sectional view taken along the line AA in FIG. 3;

FIG. 5 is a sectional view taken along line BB in FIG. 3;

FIG. 6 is a sectional view taken along the line CC in FIG. 3;

FIG. 7 is an external side view of the cargo hanging device.

FIG. 8 is a view for explaining an appearance and a use form of the material hanging device according to the embodiment of the present invention;

FIG. 9 is a view showing an appearance of a suspension portion of the material suspension device according to another embodiment of the present invention.

FIG. 10 is a view showing a GG section of the suspension unit.

FIG. 11 is a diagram showing a DD section of the suspension unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Load material 2 ... Load material suspending means 3 ... Support chain 21 ... Rotating member 22 ... Drive means 24 ... Rotation direction regulating means 27 ... Contact member 31 ... Support chain 32 ... Wire rope 112 ... Gear 221 ... Driving motors 222, 223: Sprocket 224: Chain 231, 232: Gear member 233: Rotating shaft 241: Ratchet board 242: Claw 261, 262: Clutch member

Claims (5)

[Utility model registration claims] 1. A load suspending device comprising: a load suspending means for suspending a load so that the load can be raised and lowered; and a support member for supporting the load suspending means. A support wire is stretched in a direction different from the lifting direction of the load which is raised and lowered by the load suspending means. The support wire is rotatably supported by the support wire by being wound around the support wire. A driving member for driving the rotating member. The driving member is used to drive the rotating member, and the rotating member is driven by a frictional force between the rotating member and the supporting wire. A load suspending device, wherein the load suspending means comprises a friction block, such as a chain block, for moving the support wire out of a moving member. 2. The apparatus according to claim 1, further comprising a rotation direction restricting means for restricting rotation of the rotating member in a predetermined direction when the friction block comes into direct or indirect contact with the rotating member. The rotation direction restricting means and the rotating member come into contact with each other when the driving means is to rotate in the predetermined direction, and the rotation direction restricting means and the rotating member are contacted when the driving means is to rotate in the predetermined direction. Claim 1 is separated from
A material suspension device according to item 1. 3. The drive means moves to one end or the other end of the drive means in the direction of the rotation center axis when the drive means tries to rotate in the predetermined direction or the opposite direction. Shaft connected to the driving means by meshing with the screw portion provided as described above, and connected so as to rotate integrally with the rotating member, and the driving means of the screw portion of the rotation shaft An annular member meshed with the other end, and an annular plate-shaped member centered on the rotation shaft, the annular member being disposed between the driving means and the annular member; When the shaft is moved toward the one end side relative to the driving means, the annular member abutting on the other end side of the screw portion of the rotating shaft is pressed by the driving means and A clutch for integrally connecting the rotation direction restricting means and the rotation shaft. And a contact member provided on the one end side of the rotating shaft by the driving means and rotating integrally with the rotating shaft. When the rotating member is to rotate in the predetermined direction, The rotating shaft rotates integrally with the rotating member in the predetermined direction, the rotating shaft moves toward the one end relative to the driving means, and the rotation direction is regulated by the clutch member. By integrally connecting the rotating means and the rotating shaft, the rotation of the rotating member in the predetermined direction is restricted, and when the driving means tries to rotate in the predetermined direction, the driving means rotates the rotating member. The driving means is moved to the one end side of the shaft to release the connection between the rotation direction restricting means and the rotating shaft by the clutch member, and the driving means is brought into contact with the contact member so that the driving means and the driving means come into contact with each other. The rotating member is connected to a rotating shaft. Load material suspension device according to claim 2 comprising transmitting the driving of the drive means. 4. A ratchet machine having a rotation direction regulating means disposed between the driving means and the annular member and having a saw-shaped tooth on a peripheral surface thereof, and a ratchet machine having teeth on the ratchet machine. If the ratchet machine is to rotate in the opposite direction to the predetermined direction, the ratchet swings to allow rotation of the ratchet machine. 4. The material hanging apparatus according to claim 3, further comprising a claw member that locks the ratchet board and restricts rotation of the ratchet board. 5. The apparatus according to claim 1, wherein the supporting wire is a chain or a wire rope.