JP3057407B2 - Material receiving device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material receiving apparatus for receiving, for example, materials lifted by a tower crane and carrying it on or off the floor of a building in building works.

[0002]

2. Description of the Related Art Conventionally, such an apparatus is disclosed in
As described in JP-A-274970 and JP-A-3-224962, an opening is provided on each floor of a building frame to form a stairwell transport path that penetrates all floors, and is laterally moved on the floor of each floor. A movable table or a slide hatch for opening and closing an opening is known. In this conventional example, a material suspended in a transport path by a tower crane is placed on a movable carriage for receiving goods on a use floor (a target floor to be carried in) or on a guide trolley running on a slide hatch. Then, the movable platform or the guide cart for loading is laterally moved onto the floor of the use floor and carried in.

[0003]

However, according to this, there are the following problems. It is necessary to provide an opening for each floor of the building frame, and to provide a movable receiving table or a slide hatch for each opening, which increases equipment costs.
A step of closing the opening of each floor later is required. The size of the material that can be carried in is limited by the size of the opening. Operation of the tower crane is very difficult because the material must be lifted and lowered through the opening.

SUMMARY OF THE INVENTION In view of the above problems, it is not necessary to provide an opening and a movable receiving stand or a slide hatch for each floor of a building skeleton, and materials and the like are transferred from the outside of the building skeleton to a use floor. An object of the present invention is to provide a material receiving device that can be efficiently and easily loaded or unloaded.

[0005]

In the material receiving device according to the present invention, an overhanging gantry projecting from the building frame is mounted on a pair of guide posts erected along the building frame so as to be able to move up and down. , With a self-elevating device that raises and lowers it along a pair of guide posts,
An upper support and a lower support for detachably fixing the overhanging gantry to the upper and lower two floors of the building frame are pivotally attached to the overhanging frame such that the upper and lower supports can be retracted from the upper floor of the building frame to the outside. I do. In addition, actuators for rotating the upper support and the lower support from the fixing brackets provided on the floor of the building frame to the outside of the floor and vice versa are mounted on the overhanging gantry, and the upper support and the lower support are respectively provided. In addition, an automatic lock mechanism for automatically fixing and releasing the fixing bracket on the floor is installed. The auto-lock mechanism includes a lock pin that can pass through the lock holes of the upper support and the lower support and the lock hole of the fixing member that matches the lock hole, an actuator that penetrates and withdraws the lock pin from the lock hole. Consists of

[0006]

According to such a material receiving device, the overhanging gantry can be automatically raised and lowered by the self-elevating device along the guide post outside the building frame. In addition, by fixing the upper support and the lower support attached to the overhanging gantry to the upper and lower two floors of the building skeleton, the overhanging gantry can be temporarily erected outside from the use floor of the building skeleton. At the same time, it can be easily moved to another floor. Therefore, for example, materials and the like lifted by a tower crane can be transferred onto an overhanging gantry projecting to the outside of the building frame, and can be carried into the use floor through the overhanging gantry or conversely carried out.

By providing a conveyor on the overhanging gantry, materials can be easily loaded and unloaded. By providing the fixing bracket on the floor of the building frame, the overhanging gantry can be easily fixed to the used floor. The upper support and the lower support can be automatically displaced from the upper floor to the lower floor by the actuator, and vice versa, and can be automatically fixed to and released from the metal fittings on the upper floor. By configuring the self-elevating device with a pinion that meshes with a rack provided on a pair of guide posts, and a motor that rotates the pinion, the self-elevating device can have a simple configuration. By connecting the upper support and the lower support with adjustable length columns, it is possible to cope with the difference in the floor height of the building frame. Provide a portal frame on the base end of the overhanging gantry or a U-shaped frame below the base end, and attach one of the upper support and the lower support to the upper side or lower side of these frames, and attach the other to the base end of the overhanging gantry By doing so, the overhanging gantry can be fixed to the use floor in a stable state.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIGS. 1 and 2, two guide posts 2 having a truss structure stand upright from the ground along the outer periphery of the building skeleton 1 outside the building skeleton 1 under construction having no outer wall yet. A plurality of guide posts 2 are supported by the building frame 1 at a plurality of positions using a known metal fitting (not shown) so as to be parallel.

A double-toothed rack 3 is vertically attached to each of the opposing inner surfaces of the two guide posts 2 by using metal fittings (not shown), and protrudes along the racks 3 on both sides. The gantry 4 is mounted as follows.

That is, the overhanging gantry 4 is configured such that a conveyor frame 6 is fixed on a base 5 having a truss structure, and left and right columns 7 erected perpendicularly to the base end of the base 5 and an upper frame member between these upper ends. (Upper side) 8 and the gate-shaped frame 9, between the upper frame material 8 and the tip of the conveyor frame 6,
The left and right braces 10 are stretched by wires. Two pairs of left and right drive pinions 11 are supported on both left and right sides of the base end of the base 5, and two pairs of auxiliary pinions 12 are supported on both left and right sides of the upper frame member 8.
Then, the teeth of the drive pinion 11 are engaged with the teeth so as to sandwich the rack 3 on the left and right sides by the two pairs of drive pinions 11 on the left and right, and the rack 3 is similarly sandwiched between the left and right auxiliary pinions 12 by the two pairs of left and right auxiliary pinions 12. The overhanging gantry 4 is horizontally mounted between the left and right racks 3 by engaging the teeth of the auxiliary pinion 12 with the teeth.

The left and right drive pinions 11 transmit the rotation of a motor 14 mounted in the base 5 via a speed reducer 15, and rotate the motor 14 forward or reverse to rotate the motor 14.
The overhanging gantry 4 can be automatically moved up and down along the left and right guide posts 2 while maintaining a horizontal state by a rack and pinion type self-elevating device.

Further, as shown in FIGS. 1, 3 and 4, the upper frame material 8 on the overhanging gantry 4 has
6 are pivoted by a shaft 17 and the conveyor frame 6
At the base end of the shaft, left and right lower supports 18 are similarly mounted on shafts 19.
Is pivoted by The upper support 16 and the lower support 18 are rotatable up and down in a state in which they project horizontally rearward as shown by solid lines in FIG. 1 and in a state in which they fall downward as shown by dashed lines. Figure 5
As shown in (1), it is automatically performed by a pneumatic or hydraulic cylinder 20, which is an actuator that expands and contracts. As shown in FIG. 5, each of the supports 16 and 18 has a distal end portion forked. Then, the forked portion is fitted to a fixing metal fitting 21 provided on the floor (on the beam of the skeleton) of the building skeleton 1 and locked into two sets of lock holes 22 which match with each other as shown in FIG. By penetrating the pin 23,
Each support 16 and 18 can be locked to the fixing bracket 21.

The following automatic locking mechanism is mounted on each of the supports 16 and 18 so that such locking and unlocking can be automatically performed. That is, a locking pneumatic or hydraulic cylinder 24 is attached to the side surface of each support 16, 18 for each lock pin 23. And the piston rod and the lock pin 23
The lock pin 23 is automatically connected to the lock hole 22 by air pressure or expansion and contraction of the hydraulic cylinder 24.
Get out.

As shown in FIGS. 1 and 3, a roller conveyor 27 is mounted on the conveyor frame 6 of the overhanging gantry 4 and a safety fence 28 is provided. Further, a load cell 29 is connected to each of the braces 10 in order to issue an alarm when the load weight of the overhanging gantry 4 exceeds a set value or to perform an interlock in which loading is impossible. Further, in the base 5, a motor 14 for raising and lowering the overhanging gantry 4 and upper and lower supports 16.1.
A control panel 31 is provided which enables a portable wireless device 30 to wirelessly control a cylinder 20 for operating the cylinder 8, a cylinder 24 for locking and unlocking the cylinder 8, a motor for driving the roller conveyor 27, and the like.

Next, an operation example of the material receiving apparatus will be described. In the case where the overhanging gantry 4 is moved up or down to move from the current use floor N of the building frame 1 to the next use floor M, FIG. 7 shows that the lower support 18 is fixed to the N use floor which is the current use floor. It shows a state in which the upper support 16 is fixed to the metal fitting 21 and the upper support 16 is fixed to the metal fitting 21 on the (N + 1) th floor. At this time, the overhanging gantry 4 is held in a state where the overhanging gantry 4 horizontally extends outward from the N floor, which is the currently used floor. The luggage 32 lifted by the tower crane is unloaded on the overhanging gantry 4 outside the building frame 1, and can be smoothly carried into the N floor by the roller conveyor 27 using the pallet 33.

From this state, the lock pin 23 is pulled out by the automatic lock mechanism shown in FIG.
6 and 18 are detached from the fixture 21, and the motor 14 of the self-elevating device shown in FIGS. 1 and 2 is driven to slightly raise the overhanging gantry 4, and as shown in FIG.
After separating 8 from the frame beams on the Nth and N + 1th floors, as shown in FIG. 9, these supports 16 and 18 are pivoted downward to retreat from the upper floor to the outer floor.

Thereafter, the overhanging gantry 4 is moved from the Nth floor to the Mth floor as shown in FIG. 10 by the self-elevating device, and as shown in FIG. 11, slightly above and below the frame beams on the Mth and M + 1th floors. After the supports 16 and 18 are turned upward to be horizontal, the overhanging gantry 4 is lowered until the supports 16 and 18 are on the frame beams, and the upper support 16 is attached to the fixing bracket 21 on the (M + 1) th floor. When the lower support 18 is fixed to the fixing fitting 21 on the Mth floor while being fixed, the overhanging gantry 4 is held in a state of horizontally protruding outward from the Mth floor as shown in FIG. Therefore, if the cargo lifted by the tower crane is wholesaled on the overhanging gantry 4, it can be carried to the M floor in the same manner as described above.

In the embodiment described above, the portal frame 9 is provided above the base end of the overhanging gantry 4, the upper support 16 is provided on the upper frame member 8 of the portal gantry 9, and the lower portion is provided on the base end of the overhanging gantry 4. FIG. 13 and FIG.
As shown in FIG. 4, the shape may be inverted.

That is, a U-shaped frame 34 is provided below the base end of the overhanging gantry 4, and the upper support 16 is attached to the base end of the overhanging gantry 4, while the lower support 18 is attached to the lower frame of the U-shaped frame 34. A steel brace 36 is mounted between the lower frame member 35 and the tip of the overhanging gantry 4 to support the overhanging gantry 4 from below.

In the case of the embodiment shown in FIGS. 1 to 12, if the left and right columns 7 of the gate-shaped frame 9 are made vertically expandable and contractible, the height of the gate-shaped frame 9, that is, the upper support 1
The distance between 6 and the lower support 18 can be adjusted according to the floor height. FIG. 15 shows an example, in which each of the right and left columns 7 is divided into an upper column 7a and a lower column 7b, and these are telescopically (nested) so as to be extendable and contractible, and the connecting portions can be fixed with fixing brackets. In addition, the length of the left and right braces 10 can be adjusted by the turn buckle 10a. The embodiment shown in FIGS. 13 and 14 can be similarly adjusted.

[0021]

The advantages of the present invention are as follows for each claim.

<Claim 1> The overhanging gantry can be automatically lifted and lowered by a self-elevating device along the guide post outside the building frame, and the upper support and the lower support attached to the overhanging gantry can be attached to the building. By fixing to the two floors above and below the building,
This overhanging gantry can be temporarily installed with the building slab protruding outward from the floor where it is used, and can be easily relocated to other floors. Alternatively, there is no need to provide a slide hatch, and materials and the like can be efficiently and easily carried into or out of the use floor from outside the building frame. The upper support and the lower support can be automatically displaced from the upper floor to the lower floor by the actuator, and vice versa, and can be automatically fixed to and released from the metal fittings on the upper floor.

<Claim 2> Since the conveyor is provided on the overhanging gantry, the loading and unloading of materials and the like can be performed more easily in addition to the effect of claim 2.

<Claim 3> Since the self-elevating device is composed of a pinion that meshes with a rack provided on a pair of guide posts, and a motor that rotates the pinion, the self-elevating device can be simplified. it can.

<Claim 4> Since the upper support and the lower support are connected by a column whose length can be adjusted, it is possible to cope with a difference in floor height of the building frame.

<Claims 5 and 6> A portal frame or a U-shaped frame below the base end is provided on the base end of the overhanging gantry, and one of the upper support and the lower support is provided on the upper side or lower side of these frames. By mounting the other on the base end of the overhanging gantry, the overhanging gantry can be stably fixed to the use floor.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a material receiving device according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of an upper end portion of the material receiving device.

FIG. 5 is a perspective view of a support for fixing the overhanging gantry to a building frame.

FIG. 6 is a plan view of an auto-lock mechanism for locking and unlocking the support.

FIG. 7 is a side view of the first stage of the operation procedure of moving the overhanging gantry from the current use floor N of the building frame to the next use floor M.

FIG. 8 is a side view of a second stage.

FIG. 9 is a side view of a third stage.

FIG. 10 is a side view of a fourth stage.

FIG. 11 is a side view of a fifth stage.

FIG. 12 is a side view of a final stage.

FIG. 13 is a side view of another embodiment of the material receiving device.

FIG. 14 is a side view showing a state where the material receiving device is relocated.

FIG. 15 is a side view of an example in which the distance between the upper and lower supports can be adjusted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building frame 2 Guide post 3 Rack 4 Overhanging gantry 7 Prop 8 Upper frame material 9 Portal frame 11 ・ 12 Pinion 14 Motor 16 Upper support 18 Lower support 20 Pneumatic or hydraulic cylinder (actuator) 21 Fixing bracket 23 Lock pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-118464 (JP, A) JP-A 6-58045 (JP, U) JP-A 5-83182 (JP, U) JP-A 52-183 83320 (JP, U) Actually open 1987-11956 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 21/16 B65G 69/28

Claims (6)

(57) [Claims] An overhanging gantry projecting from a building frame is mounted on a pair of guide posts erected along the building frame so as to be able to move up and down, and the overhanging gantry is moved up and down along a pair of guide posts. In addition to mounting the self-elevating device, the upper and lower supports for detachably fixing this overhanging gantry to the upper and lower two floors of the building frame are provided so that the upper and lower supports can be retracted from the upper floor of the building frame to the outside. And an actuator for pivoting the upper support and the lower support from a fixture provided on the floor of the building frame to the outside of the floor and vice versa is mounted on the overhanging gantry. , Each of the upper support and the lower support is equipped with an auto-lock mechanism for automatically fixing and releasing the fixing bracket, and this auto-lock The structure includes a lock pin that can pass through the lock holes of the upper support and the lower support and the lock hole of the fixing member corresponding thereto, and an actuator that penetrates and withdraws the lock pin from the lock hole. Material receiving device characterized by the above-mentioned. 2. The material receiving device according to claim 1, wherein a conveyor is provided on the overhanging gantry. 3. The self-elevating device according to claim 1, wherein the self-elevating device comprises a pinion that meshes with a rack provided on the pair of guide posts, and a motor that rotates the pinion. Material receiving device. 4. An apparatus according to claim 1, wherein said upper support and said lower support are connected by an adjustable length support.
A material receiving device according to any one of the above. 5. A portal frame provided on a base end of an overhanging gantry, an upper support pivotally attached to an upper side of the portal frame, and a lower support pivotally attached to a base end of the overhanging gantry. The material receiving device according to any one of claims 1 to 4, wherein: 6. A U-shaped frame is provided below a base end of the overhanging gantry, a lower support is pivotally attached to a lower side of the U-shaped frame, and an upper support is pivotally attached to a base end of the overhanging gantry. The material receiving device according to any one of claims 1 to 4, wherein