JP2828337B2 - Lifting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] The present invention relates to a lifting and carrying device, and more particularly to a lifting and carrying device for transporting construction materials and the like at a construction site.

[Conventional technology]

At the construction site, a transport elevator will be installed after the building framework is completed. For the completed building, various works are performed on each floor using a large amount of construction materials. The transport elevator can transport construction materials and the like necessary for the various works to each floor. The person in charge of each construction reserves the use of the transport elevator to transport the materials required for each construction to the floor where the work is performed. The transport elevator is used in accordance with a use schedule created by coordinating reservations from each construction person.

The transport elevator includes a bed for storing construction materials, a moving means for moving the bed up and down and stopping at each floor of the building,
It has. Operators of the transport elevator operate so that the loading platform moves up and down according to the use schedule. Also,
Several loading and unloading personnel load construction materials placed on a bogie or the like on the loading floor together with the bogie to the loading platform, and when the loading platform stops at the loading / unloading floor, unload the construction materials from the loading platform. Thereby, the construction material is lifted from the loading floor to the unloading floor and transported. Further, the carrier can accommodate and transport a person.

[Problems to be solved by the invention]

However, as described above, transporting construction materials using a transport elevator requires several cargo handling and operating personnel. In particular, the shortage of workers is a serious problem in construction work, and there is a need for labor saving and high efficiency in transporting construction materials and the like.

The present invention has been made in view of the above-described facts, and has as its object to obtain a lifting and conveying apparatus capable of saving labor for conveying construction materials and the like.

[Means for solving the problem]

In order to achieve the above object, a lifting and conveying apparatus according to the present invention includes a loading platform capable of storing a transported object, a moving unit configured to move the loading platform in an elevating direction, and loading or loading the transported object onto the loading platform. Transport means for transporting to be loaded and unloaded, and input means for inputting schedule data representing at least the transport date and time of the load, the loading floor and the loading / unloading floor,
On the basis of the input schedule data, the transported object located on the loading floor is loaded into the loading platform at the transportation date and time, and the loading platform on which the transported product is loaded is moved to the loading / unloading floor and then unloaded from the loading platform. Control means for controlling the moving means and the transport means as described above.

[Action]

In the present invention, the loading and unloading of the goods to be carried to and from the carrier is carried out by the carrying means, so that no cargo handling personnel is required. In addition, the moving means and the transporting means move the transported object located at the loading floor at the transportation date and time from the loading floor to the loading platform based on the scheduled data indicating the transportation date and time of the transported object, the loading floor and the unloading floor. Is controlled so that the loading platform on which the goods are loaded is moved to the loading / unloading floor, and then loaded / unloaded from the loading platform. As described above, since the transported object is automatically transported and the operation personnel are not required, it is possible to save labor for transporting the construction materials and the like.

〔Example〕

First Embodiment Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a part of a building under construction. A vertically extending elevator shaft 10 is provided inside the building.
Inside 10 is housed an elevator section 12 of the lifting and conveying apparatus according to the present invention.

As shown in FIG. 2, the elevator section 12 has a mast 14 disposed along the vertical direction of the elevator shaft 10. The mast 14 has a light and rigid box truss structure, and is configured by stacking a plurality of truss units along the vertical direction of the elevator shaft 10. The mast 14 is provided with a rack 16 and guide rails (not shown) along the longitudinal direction. The guide rail guides the movement of the carrier 18 in the ascending and descending directions. A shock unit 20 is provided upright at the lower end of the elevator shaft 10.

The bed 18 has a rectangular floor, 1.3 m long and 4.5 m wide
It is also possible to load large-scale building materials of about 4m with a size as small as possible. Doors 22 and 24 are provided on the front surface of the bed 18. door
The doors 22 and 24 are supported movably in the up-down direction with respect to the loading platform 18, and the door opening / closing motor 26 (the fourth
(See the figure), the door is moved up and down and opened and closed by transmitting the driving force of FIG. As shown in FIG. 4, the door opening / closing motor 26 is connected to a driving device (power board) 28 and is operated by the driving device 28. In addition, the door 22,
A limit switch 30 (see FIG. 4) that turns on and off in accordance with opening and closing of the switch 24 is provided.
Is a control unit (ground operation panel) via the switch drive circuit 32
Connected to 34. The switch drive circuit 32 outputs different signals depending on whether the limit switch 30 is on or off. The control device 34 determines the open / closed state of the doors 22, 24 based on the signal input from the switch drive circuit 32.

As shown in FIGS. 2 and 3, a drive unit 36 is disposed above the loading platform 18. The carrier 18 is connected to the drive unit 36 and moves together with the drive unit 36. One end of a wire 38 is attached to the drive unit 36. A wire winder 40 is attached to the other end of the wire 38, and an intermediate portion is wound around a guide sheep 42 arranged at the upper end of the mast 14. At the lower end of the wire winder 40, a counterweight 44 is attached. The counterweight 44 has a weight approximately equal to the total weight of the loading platform 18 and the drive unit 36, and is guided by a guide rail provided along the mast 14 so as to be movable in the ascending and descending directions. . Therefore, the carrier 18 and the drive unit 36 are moved up and down while balancing with the counterweight 44 with the guide sheep 42 as a fulcrum. The wire winder 40 winds and pulls out the wire 38 in accordance with the vertical movement of the bed 18 so that the distance between the guide sheep 42 and the counterweight 44 is proper.

The drive unit 36 includes three loading / lowering motors 48
And a pinion gear (not shown) that meshes with the rack 16. The driving force of the carrier lifting motor 48 is transmitted to the pinion gear via a transmission mechanism (not shown), whereby the carrier 18 and the drive unit 36 are moved up and down. The carrier lifting motor 48 is connected to the driving device 28 (see FIG. 4), and is operated by the driving device 28. Further, as shown in FIG.
It has. The rotary encoder 50 detects the rotation angle of the pinion gear meshing with the rack 16. The rotary encoder 50 is connected to the control device 34 and outputs a detection result to the control device 34. The control device 34 determines the moving direction, the moving distance, and the moving speed of the carrier 18 based on the signal input from the rotary encoder 50.

In addition, an auxiliary power unit 52 is mounted below the carrier 18. The auxiliary power unit 52 has a motor whose output is smaller than that of the carrier lifting motor 48, and drives the pinion gear with the driving force of the motor to apply a moving force to the carrier 18 in the lifting direction, and the driving unit 36 Packing bed by 18
Can assist in moving.

As shown in FIG. 1, a transfer machine 54 is mounted on the floor of the loading platform 18. The transfer machine 54 has a wide and endless belt supported by a pair of rollers, and is well known by rotating the belt with a driving force of a transfer machine drive motor 56 (see FIG. 4). Can transport the construction materials and the like placed on the upper belt surface (transport surface) as in the case of the belt conveyor. The transfer machine driving motor 56 is connected to the driving device 28 and is operated by the driving device 28.

A plurality of belt conveyors 58 are arranged on each floor of the building. Each belt conveyor 58 is a transfer machine
By rotating the belt by the driving force of the belt conveyor driving motor 60 (see FIG. 4), construction materials and the like on the conveying surface can be conveyed similarly to 54. The belt conveyor driving motor 60 is connected to the driving device 28 and is operated by the driving device 28. Belt conveyor 58 for each floor
Is a belt conveyor when the bed 18 stops on the floor.
The transfer surface 58 is installed so as to be substantially continuous with the transfer surface of the transfer machine 54. As a result, according to the rotation direction of the transfer machine 54 and the belt of the belt conveyor 58, the construction materials and the like are loaded on the carrier.
It can be conveyed to be loaded on or unloaded from the carrier 18. As described above, the transfer machine 54 and the belt conveyor 58 constitute a transport unit of the present invention.

A load cell 62 is attached to the transfer machine 54. The load cell 62 detects the weight of a transferred object such as a construction material placed on the transfer device 54 by detecting the displacement amount of the transfer surface of the transfer device 54. The load cell 62 is connected to the control device 34 (see FIG. 4), and outputs a detection result to the control device 34. The control device 34 determines the weight of the object loaded on the bed 18 and the weight of the object unloaded from the bed 18 based on the change in the weight of the object detected by the load cell 62.

Also, as shown in FIG. 1, an optical sensor 64 is provided on each floor in correspondence with the belt conveyor 58. The optical sensor 64 detects the presence or absence of a construction material or the like on the conveyor surface of the belt conveyor 58. As shown in FIG. 4, each optical sensor 64 is connected to the control device 34 and outputs the detection result to the control device 34.

Also, as shown in FIG. 2, an optical fiber cable 66 is connected to the carrier 18. The optical fiber cable 66 includes a limit switch 30, a rotary encoder 50, an output signal of a load cell 62, a door opening / closing motor 26, a carrier lift motor 48, and a transfer device drive motor attached to the carrier 18.
Control signals for controlling the operation of 60 are transmitted (see also FIG. 4).

As shown in FIG. 4, the control device 34 is connected to the drive device 28, and based on output signals from the sensors connected to the control device 34, the door opening / closing motor 26,
48, outputting motor control information for controlling the operations of the transfer machine drive motor 56 and the belt conveyor drive motor 60 to the drive device 28. The driving device 28 operates each motor connected to the driving device 28 based on the motor control signal.

Further, a personal computer 68 is connected to the control device 34. A keyboard 70 and a CRT 72 are connected to the personal computer 68. The personal computer 68 adjusts the operation reservation of the lifting / lifting device, which is input in advance via the keyboard 70, and outputs the adjusted result to the control device 34 as operation schedule data. Further, the control device 34 outputs the operation result data to the personal computer 68. The operation result data includes, based on the motor control information, data indicating at what time the floor 18 has been moved from what floor to what floor, and the transported object loaded on the transport bed 18 or the transported load unloaded from the transport platform 18. It consists of data indicating the weight of an object. The personal computer 68 once accumulates and collects this operation result data in a storage medium or the like, and then edits and collects it.
Display on CRT72.

Next, the operation of the first embodiment will be described. The person in charge of each construction work which intends to use the lifting equipment transfers data to reserve the use of the personal computer 68 via the keyboard 70.
Enter For example, as this reservation data, the name of the user, the name of the material, the date and time of transportation, the loading floor and the weight of the material when loading the material onto the carrier 18, the loading floor and the weight of the material when loading and unloading the material from the carrier 18 Enter the data representing the etc. The personal computer 68 adjusts the reservation data in which the transportation date and time overlap among the inputted reservation data, and generates operation schedule data. The lifting and carrying device is operated based on the operation schedule indicated by the operation schedule data.

The operation of the control device 34 for controlling the operation of the lifting and conveying device will be described with reference to the flowchart of FIG. The flowchart in FIG. 5 is executed when the power of the control device 34 is turned on.

In step 100, the controller reads out today's date from a timer built in the controller, and fetches scheduled operation data corresponding to the date from the personal computer 68. The operation schedule data is configured as shown in the table below, for example, and transport schedules of materials and the like used in each construction are arranged in ascending order of transport time.

According to the above operation data, transportation starts at 9:09:00, and 10 tons of goods are loaded on the loading platform 18 on the first floor, moved to the fifth floor, and 4 tons of goods are loaded and unloaded on the fifth floor. An operation schedule for moving to the 8th floor, loading and unloading all transported objects on the 8th floor, and moving to the first floor is expressed. And then 9
It is set to transport 8 tons of goods to be transported from the 1st floor to the 6th floor at 05:05.

A supplier or the like that lifts construction materials and the like by using a lifting and carrying device is a construction material and the like that lifts on the belt conveyor 58 of the loading floor slightly before the transportation time determined by the operation schedule data. Is placed. For example, in the transportation schedule shown in the above table, construction materials and the like are placed on the belt conveyor 58 on the first floor slightly before 9:09:00. In the next step 102, the current time is read from the timer, and it is determined whether or not the current time has reached the transportation time indicated in the operation schedule data. If the current time is not the transport time, the determination in step 102 is repeated until the transport time comes. If the determination in step 102 is affirmative, it is determined in step 103 based on the signal input from the optical sensor 64 whether a material or the like is placed on the belt conveyor 58 on the loading floor. If no material is placed, an alarm or the like is issued in step 104 to notify the manager or the like, and the process returns to step 102. Thereby, the administrator can recognize that the lifting and carrying device is not operating as scheduled.

If the determination in step 103 is affirmative, step 1
At 05, the loading platform elevating motor 48 is driven via the driving device 28 to move the loading platform 18 in the direction of the loading floor (ascending or descending direction), and the moving distance of the loading platform 18 detected by the rotary encoder 50 is adjusted to the loading floor. When the distance corresponding to is reached, the driving of the loading platform elevating motor 48 is stopped. This causes the bed 18 to stop at the loading floor.

In step 106, the door opening / closing motor 26 is driven to open the doors 22,2.
Move 4 in the opening direction. In the next step 108, the motor 56 for driving the transfer machine and the motor 60 for driving the belt conveyor on the loading floor are driven. As a result, a conveyed object such as a construction material placed on the belt conveyor 58 on the loading floor is moved onto the transfer machine 54 in the carrier 18.

In step 110, the weight of the transported object moved onto the transfer machine 54 is monitored based on the signal input from the load cell 62, and it is determined whether or not the weight has reached the weight set in the operation schedule data. If the determination in step 110 is negative, the process returns to step 108, and the belt conveyor 58 and the transfer machine 54 are operated until the weight reaches the set value.

If the determination in step 110 is affirmative, the process proceeds to step 112, in which the door opening / closing motor 26 is driven to move the doors 22, 24 in the closing direction. In step 114, the bed lifting motor 48 is driven to move the bed 18 to the loading / unloading floor, and in step 116
To drive the door opening / closing motor 26 again to move the doors 22, 24 in the opening direction. For example, in the transportation started at 9:00:09, the carrier 18 is moved to the fifth floor.

In step 118, the transfer machine driving motor 56 and the belt conveyor driving motor 60 on the loading / unloading floor are driven to
The transported object placed on 54 is loaded and unloaded. In step 120, the weight of the object unloaded from the transfer machine 54 is monitored from the output signal of the load cell 62 in the same manner as in step 110, and it is determined whether or not the weight has reached the value set in the operation schedule data. If the determination in step 120 is negative, the process returns to step 118, and the transfer machine 54 and the belt conveyor 58 are operated until the weight reaches the set value.

If the determination in step 120 is affirmative, in step 122 the door opening / closing motor 26 is driven to move the doors 22 and 24 in the closing direction. In the next step 124, it is determined whether or not the loading / unloading of the transferred object has been completed. For example, in the above-mentioned table, in the transportation started at 9:00:09, the operation schedule data is set so that the transported goods loaded on the first floor are unloaded at two places on the fifth floor and the eighth floor. In such a case, the determination in step 124 is denied, and the process returns to step 114.
Repeat 124. In addition, three or more floors can be set as the loading / unloading floors.

If the determination in step 124 is affirmative, in step 126, the transportation reservation actually subjected to the transportation processing in steps 104 to 124 is extracted from the operation schedule data and transferred to the personal computer 68 as operation result data.
The personal computer 68 stores the transferred operation result data in a storage medium such as a magnetic disk and collects the operation result data. Thereby, labor for collecting operation results can be saved. After the process of step 126 is completed, the process returns to step 102, and steps 102 to 126 are repeated until all materials and the like have been transported.

As described above, the construction materials and the like are automatically transported based on the operation schedule data, so that the operation personnel and the cargo handling personnel are not required, and the transportation of the construction materials and the like can be saved.

Next, the process of editing and outputting the operation results collected as an action of the personal computer 68 will be described with reference to the flowchart of FIG. The flowchart of FIG. 6 is executed when the operation result editing process is instructed to the personal computer 68 via the keyboard 70.

In step 150, it is determined whether an editing method has been designated. In this embodiment, the personal computer 68 can edit the operation result data by various kinds of editing methods. For example, a graph showing a change in the lifting operation time during the construction period as shown in FIG. 7A, a change in the lifting weight during the construction period as shown in FIG. The number of lifts per unit floor area of the building can be obtained by compiling a list of the weight, the number of times, and the steps, or from the total of the numbers of lifts. When the editing method is specified, the operation result data is read from the storage medium in step 152. In the next step 154, the operation result data is edited according to the specified editing method. This allows
For example, graphs such as those shown in FIGS. 7A and 7B and the above-described lists are created. In step 156, the edited result is displayed on the CRT 72, and the process ends.

By referring to the edited result, it is possible to analyze, for example, the proper number of lifting and carrying devices with respect to the total floor area of the building, and to analyze the timing of adding the lifting and carrying devices during the construction period. In addition, the management and operation of the lifting and conveying device can be improved. For example, it is possible to analyze an operation method for efficiently operating each of the plurality of lifting / carrying devices, and to change a method of adjusting a reservation for carrying by the personal computer 68 based on the analysis result. As described above, the operation and evaluation of the operation of the lifting and conveying device can be easily performed, and labor saving can be realized.

In the present embodiment, the transportation reservation that has been subjected to the transportation processing is extracted from the operation schedule data and used as the operation result data. However, a sensor for detecting the movement of the loading platform, a sensor for detecting the weight of the material to be transported, and the like. And the detection results of these sensors may be collected as operation result data. In this case, the operation result data can be collected for the manually operated elevator apparatus.

Second Embodiment Next, a second embodiment of the present invention will be described. The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the second embodiment, the control device 34 performs control as shown in FIG. 8 instead of the control shown in FIG. That is, in step 150, operation schedule data including a large number of transportation schedules is fetched from the personal computer 68 as in the first embodiment. In step 152, with reference to the operation schedule data, from among the multiple conveyance schedules, the conveyance schedule for which the conveyance process has not been executed and the set conveyance time is the shortest is set as the conveyance target. The determination as to whether or not the transport process has not been performed can be made by referring to data indicating whether or not the transport process provided for each transport schedule has been performed. At the start of the transport process, the data of each transport schedule is data indicating that the transport process has not been executed.

In the next step 154, the current time is read out, and it is determined whether or not the current time is after the transportation time set in the transportation schedule as the transportation target. If the current time is earlier than the transport time of the transport target, step 154 is repeated until the above determination is affirmed. If the determination in step 154 is affirmative, the process proceeds to step 156, where it is determined whether or not materials and the like are placed on the belt conveyor 58 at the loading floor set to be transported as the transport target. This determination is made based on a signal input from the light sensor 64 on the loading floor.

If the determination in step 156 is affirmative, in step 158, whether there is an empty space on the belt conveyor 58 at the loading / unloading floor set to be transported of the transport target, that is, the belt conveyor 58 on the loading / unloading floor is loaded / unloaded. It is determined whether or not processing can be performed. This determination is made based on a signal input from the light sensor 64 on the loading / unloading floor. If the determination in step 158 is affirmative, the transport processing of the transport target is possible, and therefore, step 105 in FIG.
The transport processing of materials and the like similar to Step 126 is performed in Step 1
Do 60.

If the determinations in steps 156 and 158 are denied, it is determined that the transport processing of the transport target cannot be performed, and the process proceeds to step 162. In step 162, the transportation schedule that has not been executed and the transportation time whose transportation time is currently set is reset as the transportation target, and the process returns to step 156. If the determinations in steps 156 and 158 are affirmed, it is determined that the transport processing of the reset transport target is possible, and the transport processing of the above-described materials is performed in step 160.

In the next step 162, data indicating that the carrying process has been performed is added to the carrying schedule of the carrying object. Steps
After executing step 162, the process returns to step 152 and the above processing is repeated.

By the above control, for example, it is determined whether or not the first transport process is possible, and if the first transport process is not possible, the second transport process is performed.
It is determined whether or not the transportation process of the vehicle is possible. If the second transport process is not possible, it is determined whether the third transport process is possible. If the second transport process is possible, the third transport process is performed. Thereby, in principle, the transport process is performed according to the operation schedule, and if it is determined that the transport process cannot be performed at the scheduled transport time, the transport schedule capable of the transport process is performed first, The material can be transported efficiently.

Further, it is determined whether or not the first transport process is possible. If the first transport process is not possible, another transport process is performed, and the determination is performed any number of times until the first transport process is performed. The results will not be significantly out of order.

In the above-described embodiment, the lifting and conveying apparatus has a single elevator section 12, but a plurality of elevator sections may be provided to improve the carrying capacity.

Further, in the above-described embodiment, the editing result obtained by editing the operation result data is displayed on the CRT 72, but may be printed by a printer or the like.

In the above embodiment, the load cell 62 determines whether or not the amount of the conveyed material to be loaded and unloaded is as expected based on the weight detected by the load cell 62. Alternatively, the number of objects to be conveyed and unloaded may be counted and determined. Further, it is also possible to count the occupants getting on and off the cargo bed 18 by using the infrared sensor, and to store and edit the operation results of the workers and the like.

〔The invention's effect〕

As described above, in the present invention, the transported object located on the loading floor at the transportation date and time is loaded into the loading platform based on the input schedule data, and the loading platform on which the transported product is loaded is moved to the loading / unloading floor. Since the loading and unloading is controlled so as to be unloaded from the rear loading platform, an excellent effect that labor for transporting construction materials and the like can be saved can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a part of a building to which a lifting and conveying apparatus according to the present invention is attached, FIG. 2 is a front view showing an elevator section of the lifting and conveying apparatus, and FIG. 3 is a side view of the elevator section. , FIG. 4 is a schematic block diagram of the lifting and conveying device, FIGS. 5 and 6 are flowcharts for explaining the operation of the first embodiment, and FIGS. 7 (A) and (B) are the results of editing the operation results. FIG. 8 is a flow chart for explaining the operation of the second embodiment. 18 ... bed, 34 ... control device, 48 ... bed lifting motor, 54 ... transfer machine, 58 ... belt conveyor, 68 ... personal computer.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Jiro Ishii 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Shozo Tomomatsu 8-21 Ginza, Chuo-ku, Tokyo No. 1 Takenaka Corporation Tokyo Main Store (72) Inventor Haruo Hoshino 2-5-14 Minamisuna, Koto-ku, Tokyo Inside Technical Research Center Takenaka Corporation (72) Inventor Masahiro Morita 2-Chome Minamisuna, Koto-ku, Tokyo No. 5-14 Inside Takenaka Corporation Technical Research Institute (56) References JP-A-58-177882 (JP, A) JP-A-3-174608 (JP, A) JP-A-63-82289 (JP, A) JP-A-59-114287 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66B 1/00-1/52 B66B 17/00-17/36 E04G 21/14-21 / twenty two

Claims (1)

(57) [Claims] A carrier capable of accommodating an object to be conveyed, a moving means for moving the carrier in an elevating direction, and a conveying means for conveying the object to be loaded on or unloaded from the carrier. Input means for inputting schedule data indicating the transportation date and time of the transported object, the loading floor and the loading / unloading floor, and loading the transported object located at the loading floor at the transportation date and time based on the input scheduled data. And a control means for controlling the moving means and the transport means so as to move the loading platform into which the goods to be loaded are loaded to the loading / unloading floor and then unload the loading platform from the loading platform.