JP3739139B2 - Loading platform - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cargo handling gantry installed at a construction site or the like.
[0002]
[Prior art]
At the construction site, for example, a loading platform is installed to carry in and out materials and equipment to and from the intermediate floor under construction or repair. A loading platform is required on each floor, but the loading platform on each floor is horizontal so that it does not interfere with the loading and unloading of materials and equipment by cranes etc. on the loading platform on other floors. It is necessary to arrange it in the position. As shown in FIGS. 8 (A) and 8 (B), in the load handling gantry 74 of the system configured by assembling a frame scaffold 73 as a component of the gantry with respect to the housing 71 provided with the frame scaffold 72, For example, since the second floor load handling gantry 74a and the third floor load handling gantry 74b are arranged so as to be shifted, the lower space becomes complicated by the respective components (that is, the frame scaffold 73). As a solution to this problem, as shown in FIG. 9, a load handling gantry 75 of a system that is installed in a cantilever manner on a frame scaffold 72 provided in a housing 71 is often used. However, in any case, (1) it is necessary to arrange each floor in the horizontal direction. (2) Since the opening of the frame may be arranged in the vertical direction, depending on the floor to be installed・ It may be difficult to align the loading platform with the opening used for unloading. (3) When loading certain materials into multiple floors, the loading platform will shift horizontally. It may be necessary to move vehicles, cranes, etc. that carry materials on each floor. (4) Since the mounting position is fixed, it is not possible to handle even if loading and unloading concentrate on a certain floor. There is.
[0003]
[Problems to be solved by the invention]
It is an object of the present invention to provide a cargo handling gantry that can be folded so as not to interfere with other objects when not in use, and that can move an installation position.
[0004]
[Means for Solving the Problems]
In order to solve the problems, the load handling gantry according to claim 1 of the present invention includes a hoisting mechanism part, a gantry body that is rotatably attached to a temporary member or a housing, and interlocks with the winding member of the hoisting mechanism part. , Comprising a stopping means for stopping the gantry body at the set position, a blow-up preventing material interlocking with the gantry body, and a means for holding and releasing the blow-up preventing material with respect to the gantry body at the set position. rotatably mounted to the temporary member or precursor, the holding means upflow prevention material to the gantry body became set position, without disturbing the rotation of the upflow prevention member, relative direction of rotation of the gantry body It is a stopper member provided at a position where the blow-up preventing material comes into contact, and the release means of the blow-up preventing material from the gantry main body that has become the set position is before the gantry main body rotates by the winding of the winding member, The winding member is Characterized in that it is a contact member provided on the upflow prevention material to.
[0005]
Therefore, when the gantry body is in the folded position, when the take-up member of the hoisting mechanism part is rewound, the gantry body rotates downward about the attachment part with the temporary member by its own weight, and then by the stopping means While being stopped and arranged at the set position, the blow-up preventing material is also arranged at the set position after rotating downward about the attachment portion with the temporary member in conjunction with the gantry body by its own weight. In this state, when a blowing force due to wind or the like acts on the gantry body, the gantry body tries to rotate upward, but the gantry body comes into contact with the blowing prevention material by the stopper member to prevent the gantry body from rotating. Also, when the take-up member of the take-up mechanism is lifted from the state where the gantry body is in the set position, the loosened take-up member first comes into contact with the abutment member and the blow-up preventing material is placed on the gantry body. Next, after the gantry body rotates upward about the attachment part with the temporary member, the gantry body is in the folded position with the winding member fully wound up, and the blowing prevention material In conjunction with this, it rotates upward about the attachment portion with the temporary member to be in the folded position.
[0006]
According to a second aspect of the present invention, there is provided the cargo handling gantry according to the first aspect , wherein the blow-up preventing member includes a handrail.
[0007]
Therefore, the handrail is automatically arranged when the blow-up preventing material is disposed at the set position, and the handrail is automatically housed when the blow-up preventing material is stored at the folding position.
[0008]
According to a third aspect of the present invention, there is provided the cargo handling gantry according to the first or second aspect , wherein the cargo handling gantry includes a drive mechanism unit and travels on a rail provided in the temporary member or the housing. .
[0009]
Therefore, the loading mechanism can be moved along the rail by driving the drive mechanism.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a cargo handling gantry according to the present invention will be described. 1 includes a fixed frame 11, an electric chain block 21 that is a hoisting mechanism, a gantry body 31, and a blow-up preventing member 41. The fixed frame 11 is composed of square steel pipes, both-end vertical members 12a and 12b, central vertical members 13a and 13b, upper horizontal members 14a, 14b and 14c, and a lower horizontal member 15. As shown in FIG. 2, the upper horizontal members 14 a, 14 b, 14 c and the lower horizontal member 15 are provided with clamps 16 for attaching to the building frame column 52 of the frame scaffold 51 that is a temporary member via the plate 17. It is fixed by welding.
[0011]
The arrangement position and the number of places of the clamps 16 may be provided according to the horizontal dimension of the fixed frame 11 (that is, the cargo handling gantry 1) and the arrangement interval of the building frame columns 52 of the frame scaffold 51. Further, in this case, the clamp 16 is formed by fixing the structural member of the fixed frame 11 to a square steel pipe, so that the clamp 16 is welded and fixed via the plate 17. (Not shown) can be used, and it is not necessary to fix by welding or the like, and the arrangement position is also free. An electric chain block 21 is used as the hoisting mechanism portion, and is arranged on the middle upper portion of the central vertical members 13 a and 13 b of the fixed frame 11.
[0012]
The chain 22 as a winding member from the chain block 21 is connected to a mounting member 39 (this part of the face material 34 is cut out) provided in the central member 32c of the gantry body 31. The gantry body 31 is composed of a main body 32a, 32b, connecting members 33a, 33b, and a center member 32c made of rectangular steel pipes. A face material 34 is provided on the upper surface of the gantry body 31 (in the drawing, a part of the face material 34 is notched for easy explanation), and this face material 34 becomes a work surface for loading. . The face material 34 is made of a striped steel plate and is reinforced by providing reinforcing ribs (not shown) on the back surface. The gantry body 31 is rotatably attached to the fixed frame 11. In this case, the steel plate 18 provided on the fixed frame 11 shown in FIG. 2 and the steel plate 35 provided on the gantry body 31 are joined by pins 36, and this is the gantry body 31. The main members 32a and 32b and the center member 32c are provided. Therefore, the gantry body 31 is rotatably attached to the frame scaffold 51 that is a temporary member via the fixed frame 11.
[0013]
Further, the connecting member 33a shown in FIG. 1 is provided with a stopper member 37 which is a means for holding the blow-up preventing material, and the stopper member 37 is made of an angle steel holding angle 37a shown in FIG. And holding plate 37b. Further, the gantry body 31 shown in FIG. 1 includes a chain 38a which is a stopping means provided so as to connect the main material 32a and the upper horizontal material 14a of the fixed frame 11, and similarly, the main material 32b, A chain 38b is provided as a stopping means provided to connect the upper horizontal member 14c of the fixed frame 11.
[0014]
The blow-up prevention member 41 includes vertical members 42a and 42b made of square steel pipes and an angle 44 provided so as to connect the tip portions of the vertical members 42a and 42b. The angle 44 forms a stopper portion of the stopper member 37 provided on the gantry body 31. The base ends of the vertical members 42a and 42b are rotatably attached to the both ends vertical members 12a and 12b of the fixed frame 11 by pins 45, respectively. Therefore, the blow-up preventing member 41 is also rotatably attached to the frame scaffold 51 that is a temporary member via the fixed frame 11. Further, a square steel contact member 43 which is a releasing means from the stopper member 37 of the gantry body 31 is provided between the vertical members 42a and 42b. Further, the vertical members 42a and 42b are provided with pillars 47a and 47b made of square steel pipes, and the upper ends thereof are connected by a coping 47c to constitute a handrail 47. Although the handrail 47 is provided on the blow-up preventing member 41 in this way, it can also be provided directly on the gantry body 31.
[0015]
Here, the operation of the cargo handling gantry 1 will be described, and the function of each part will be described. 2 (and FIG. 1R> 1), the load carrier base 1 is in a state where the chain 22 as the winding member is rewound and relaxed, and the chain 38b (and 38a) as the stopping means is tight. The gantry body 31 is arranged at a set position (a position where the face material 34 serving as a work surface of the gantry body 31 is horizontal). At this time, as shown in FIG. 5, the blow-up prevention member 41 is only placed on the holding plate 37 b of the gantry body 31 and is in a state of being rotatable in the upward direction B. When the blowing force C caused by the wind shown in FIG. 6 acts on the gantry body 31, the gantry body 31 tries to rotate in the upward direction A, but the holding angle 37 a meshes with the angle 44 of the blowing prevention material 41. Thus, the rotation of the gantry body 31 caused by blowing up is prevented. When the wind stops and the blowing force C no longer acts, the original state shown in FIG. 5 is restored.
[0016]
The operation in which the cargo handling gantry 1 is changed from the set state shown in FIG. 2 to the folded state shown in FIG. 4 will be described. First, when the operation lever 23 of the electric chain block 21 shown in FIG. 2 is operated, the chain 22 is started to be wound by the internal drive motor 24. The chain 22 that is gradually wound up comes into contact with the contact member 43 of the blowing prevention member 41 before the gantry body 31 is rotated in the upward direction A about the pin 36, and is shown in FIG. As described above, the blow-up preventing member 41 is rotated about the pin 45 in the upward direction B and is detached from the gantry body 31. When the chain 22 is further wound up, rotation of the gantry body 31 in the upward direction A starts. In this case, the stopper member 37 is pushed up while being in contact with the blasting prevention material 41 so that the blasting prevention material 41 is moved to the gantry body. In conjunction with 31, it is stored in the folding position shown in FIG. The hoisting of the chain 22 is automatically stopped at this position by a limit switch (not shown).
[0017]
Next, an operation in which the cargo handling gantry 1 is changed from the folded state shown in FIG. 4 to the set state shown in FIG. 2 will be described. First, when the operation lever 23 of the electric chain block 21 shown in FIG. 4 is operated, the rewinding of the chain 22 is started by the internal drive motor 24. As the chain 22 is rewound, the gantry body 31 rotates about the pin 36 in the downward direction A ′ by its own weight, and the blow-up prevention member 41 also moves to the stopper member 37 of the gantry body 31 by its own weight. It rotates around the pin 45 in the downward direction B ′ in conjunction with the gantry body 31 while abutting. Then, the rewinding of the chain 22 proceeds, the chain 38b (and 38a) shown in FIG. 2 is tensioned, and the gantry body 31 is arranged at the set position. At this time, the blow-up preventing member 41 interlocked with the gantry body 31 is also held and disposed on the holding plate 37 b of the gantry body 31. Rewinding of the chain 22 is stopped by a limit switch (not shown) in a sufficiently relaxed state so that the chain 22 does not interfere with the operation.
[0018]
From the above, the load handling gantry 1 is set only by the operation of the switch, that is, the operation lever 23 (the face material 34 serving as the work surface is horizontal, the blow-up preventing material 41 functions, and the handrail is disposed). Similarly, it can be seen that the load-carrying gantry 1 can be brought into the folded state only by the operation of the operation lever 23.
[0019]
Another embodiment of the cargo handling gantry according to the present invention will be described. The loading platform 1 shown in FIG. 7 has a mechanism that can change the position of loading by changing the installation position up and down by running the rail 54 with the drive mechanisms 61a and 61b in addition to the above. Is. The drive mechanism portions 61a are provided in pairs at both lower ends of the fixed frame 11, and share the upward drive. Further, the drive mechanism portions 61b are provided in pairs at both upper ends of the fixed frame 11, and share the upward drive. The two rails 54 are arranged, for example, in parallel to the reinforced concrete frame 53 in the vertical direction, and the load handling gantry 1 is held on the rails 54 by the drive mechanism 61a and the drive mechanism 61b so as to be able to travel. Yes.
[0020]
The vertical movement of the cargo handling gantry 1 is performed by a movable pendant switch (not shown). For example, assuming that several load take-up gantry units 1 are provided in parallel in the horizontal direction, when loading of materials is concentrated on a certain floor, it is possible to concentrate as many load-loading gantry units 1 on that floor as necessary. . Moreover, since it can move up and down, it is not necessary to provide in each floor like a fixed load-carrying gantry. In addition, a plurality of cargo handling platforms can be provided on the same rail.
[0021]
The present invention is not limited to the above embodiment. For example, as a temporary member for mounting the load taking gantry, instead of the framework scaffolding, a mounting plate can be provided on the housing, and the gantry main body and the blow-up preventing material can be rotatably provided directly without using the fixed frame and the clamp. . Also, the interlocking of the blow-up preventing material with the gantry main body can be carried out by making contact with each other or by using a movable hinge or the like. Further, the hoisting mechanism and the winding member are not limited to the electric chain block as long as the gantry body can be rotated up and down . In other embodiments, the load handling gantry is moved up and down with rails . However, it goes without saying that the position of the load handling gantry can be moved on the same floor by running in the horizontal direction. . Furthermore, the stop member of the gantry body, the stopper part and the contact member that are means for holding and releasing the blowing prevention material with respect to the gantry body, the drive mechanism part for rail traveling, etc., within the scope of the present invention. The shape and material can be changed.
[0022]
【The invention's effect】
According to the present invention, since it can be folded so as not to interfere with other operations, the degree of freedom of the arrangement can be increased. Therefore, for example, if a plurality of cargo handling platforms are installed at positions that overlap in a plan view, space can be saved, and materials and equipment can be carried in and out at the same position for vehicles, cranes, etc. that carry materials. Furthermore, if a drive mechanism is provided so that the vehicle can travel in the vertical direction, if material loading is concentrated on a certain floor, it can be concentrated on a plurality of loading platforms and efficiently disposed of. Can be carried in and out. In addition, since one unit can also serve as a plurality of floors for loading and unloading, it is not necessary to provide each floor as in the case of a fixed loading platform, and the number of installed units can be reduced. In addition, if the drive mechanism is provided so that the vehicle can run in the horizontal direction, the positions of loading and unloading of materials and equipment can be changed in accordance with the progress of work on the same floor. In addition, the load handling gantry can be set or folded only by operating the switch, so that the operation is simple and does not require a dangerous operation. This is also true for rail travel.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a cargo handling gantry according to an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating the operation of an embodiment of the present invention (part 1).
FIG. 3 is a sectional view for explaining the operation of the embodiment of the present invention (No. 2).
FIG. 4 is a sectional view for explaining the operation of the embodiment of the present invention (part 3);
FIG. 5 is a cross-sectional view for explaining functions of an embodiment of the present invention (part 1);
FIG. 6 is a cross-sectional view for explaining the function of an embodiment of the present invention (part 2);
FIG. 7 is a perspective view for explaining a cargo handling gantry according to an embodiment of the present invention. FIG. 8 is a diagram for explaining a conventional technique. FIG. 9 is a diagram for explaining a conventional technique.
DESCRIPTION OF SYMBOLS 1 Cargo gantry 21 Electric chain block 22 which is a winding mechanism part Chain 31 which is a winding member Gantry body 37 Stopper member 37a which is a holding means of a blowing prevention material Holding angle 37b which is a stopper member Stopper member Holding plate 38a, 38b Chain 41 as stop means Blow-up prevention member 43 Contact member 44 as release means from the gantry body Angle 47 as stopper portion of stopper member Handrail 51 Frame scaffolds 61a, 61b as temporary members Drive Mechanism part

Claims (3)

A hoisting mechanism section, a gantry main body that is rotatably attached to a temporary member or a housing and interlocks with a winding member of the hoisting mechanism section, a stop unit that stops the gantry main body at a set position, and a blower that interlocks with the gantry main body. and up prevention material, Ri Do and a holding and releasing means upflow prevention member for the gantry body became set position, upflow preventing member is mounted rotatably on a temporary member or precursor, gantry body became set position The blowing prevention material holding means is a stopper member provided at a position where the blowing prevention material abuts against the rotation direction of the gantry body without interfering with the rotation of the blowing prevention material. The abutment member provided on the blow-up prevention material is such that the release means of the blow-up prevention material from the gantry main body becomes the abutment member abuts before the gantry main body rotates by winding the take-up member the der Rukoto Load up the gantry to the butterflies. The cargo handling gantry according to claim 1, further comprising a handrail provided on the blow-up preventing member. The load handling gantry according to claim 1, further comprising a drive mechanism section, and traveling on a rail provided on the temporary member or the housing.

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