JPH04191252A - Lifting conveyor - Google Patents

Abstract

PURPOSE:To promote the labor-saving of conveyance for construction materials by loading a conveyed work being situated at a loading floor at the carriage date based on the estimated data inputted into a loading space and, after the loading space, where the conveyed work is loaded, is shifted to the loading floor, controlling it so as to unload from the loading space. CONSTITUTION:Each operation estimated data is inputted into a personal computer 68 via a keyboard 70. Next, if it comes to carrying time, a loading space lifting motor 48 is driven via a driver 28, and a loading space 18 is stopped at a loading floor. In succession, a transfer machine driving motor 56 and a belt conveyor driving motor 60 at the loading floor are all driven, and a conveyored work such as construction materials being mounted on a belt conveyor 58 at the loading floor is transferred onto a transfer machine 54 in the loading space 18. Then, a loading space lifting motor 48 is driven and, after the loading space 18 is moved up to an unloading floor, the transfer machine driving motor 56 and the belt conveyor driving motor 60 at the unloading floor are driven, thus the conveyed work mounted on the transfer machine 54 is unloaded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lifting and transporting device, and particularly to a lifting and transporting device for transporting construction materials and the like at a construction site.

[Conventional technology]

At construction sites, transportation elevators are installed after the building framework is completed. Once the framework of the building has been completed, various construction work will be carried out on each floor using a large amount of construction materials. The transportation elevator can transport construction materials and the like necessary for the various types of construction work to each floor.

Persons in charge of each construction project reserve the use of a transportation elevator to transport the materials necessary for each construction project to the floor where the work will be performed. The transportation elevators will be used according to a usage schedule created by coordinating reservations from each construction worker.

The transportation elevator includes a loading platform that accommodates construction materials, and a moving means that moves the loading platform up and down and stops at each floor of a building. The operator of the transportation elevator operates the elevator so that the loading platform is raised and lowered according to the usage schedule. In addition, several cargo handling personnel load the construction materials placed on a cart or the like onto the platform together with the platform on the loading floor, and when the platform stops at the loading/unloading floor, unload the construction materials from the platform. As a result, construction materials are lifted and transported from the loading floor to the unloading floor. Further, the loading platform can accommodate and transport people.

[Problem to be solved by the invention]

However, as mentioned above, in order to transport construction materials using a transport elevator, a shortage of workers has become a serious problem, especially in construction work, which requires several cargo handling and operating personnel. Labor saving in transporting construction materials, etc.
High efficiency is required.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to obtain a lifting and transporting device that can save labor in transporting construction materials and the like.

[Means to solve the problem]

In order to achieve the above object, a lifting and transporting device according to the present invention includes a loading platform capable of accommodating an object to be transported, a moving means for moving the loading platform in an upward and downward direction, and a loading and unloading device for loading the object to be transported onto the loading platform. a conveying means for transporting the object to be loaded and unloaded; an input means for inputting schedule data representing at least a transportation date and time of the transported object, a loading floor, and a loading/unloading floor; A control means for controlling the moving means and the conveying means so that the objects to be transported located on the loading floor are loaded into the loading platform, the loading platform loaded with the objects is moved to the loading and unloading floor, and then unloaded from the loading platform. It has .

[Effect]

In the present invention, loading and unloading of the objects to be transported onto and from the loading platform is carried out by the transport means, so there is no need for cargo handling personnel.

In addition, based on the schedule data representing the transportation date and time of the transported object, the loading floor, and the loading/unloading floor, the moving means and the conveying means move the transported object located on the loading floor from the loading floor to the loading platform at the transportation date and time. The cargo platform loaded with the transported items is moved to the loading and unloading floor, and then the cargo is unloaded from the platform. In this way, the objects to be transported are automatically transported and no operating personnel are required, so it is possible to save labor in transporting 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.

Figure 1 shows part of the building under construction. An elevator shaft 1 () extending vertically is provided inside the building, and within this elevator shaft 10 is housed an elevator section 12 of the lifting and transporting device according to the present invention.

As shown in FIG. 2, this elevator section 12 has a mast 1 disposed along the vertical direction of the elevator shaft 10.
It has 4. The mast 14 has a lightweight and highly rigid box truss structure, and is configured by stacking a plurality of truss units along the vertical direction of the elevator shaft 10.

A rack 16 and a guide rail (not shown) are arranged on the mast 14 along the longitudinal direction. The guide rail guides the movement of the loading platform 18 in the upward and downward directions. Note that a shock unit 20 is provided upright at the lower end of the elevator shaft 10.

The loading platform 18 has a rectangular floor surface, and has dimensions of about 1.3 m in length and 4.5 m in width, and is capable of loading large construction materials of 4 m class. A door 22, 24 is provided on the front side of the loading platform 18. The doors 22 and 24 are supported to be movable in the vertical direction relative to the loading platform 18, and are moved vertically by the driving force of the door opening/closing motor 2B (see Fig. 4) attached to the loading platform 18 being transmitted. It is moved and opened and closed.

As shown in FIG. 4, the door opening/closing motor 26 is connected to a drive device (power panel) 28 and is operated by the drive device 28. In addition, a limit switch 30 (see FIG. 4) that is turned on and off according to the opening and closing of the door 22.24 is disposed inside the loading platform 18, and this limit switch 30 is connected to a control device (ground level) via a switch drive circuit 32. Control panel) 34
It is connected to the. The switch drive circuit 32 outputs different signals depending on whether the limit switch 30 is on or off. The control device 34 determines whether the doors 22, 24 are open or closed based on the signal input from the switch drive circuit 32.

As shown in FIGS. 2 and 3, a drive unit 3B is arranged above the loading platform 18. As shown in FIGS. The loading platform 18 is connected to this drive unit 36 and moves together with the drive unit 36. The drive unit 36 has a wire 38
One end of the is attached. A wire winder 40 is attached to the other end of the wire 38, and a mast 14 is attached to the middle part.
It is wound around a guide sheep 42 arranged at the upper end.

A counterweight 44 is attached to the lower end of the wire winder 40. The counterweight 44 is the loading platform 18
The mast 14 is guided by a guide rail provided along the mast 14, and is movable in the upward and downward directions. Therefore, the loading platform 18 and the drive unit 36 are moved up and down while being balanced with the counterweight 44 using 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 loading platform 18 so that the distance between the guide sheep 42 and the counterweight 44 is appropriate.

The drive unit 36 includes three loading platform lifting motors 48.
and a pinion gear (not shown) that meshes with the rack 16,
It is equipped with The driving force of the motor 48 for raising and lowering the loading platform is transmitted to the pinion gear via a transmission mechanism (not shown), whereby the loading platform 18 and the drive unit 36 are moved up and down. The loading platform lifting motor 48 is connected to the drive device 28 (see FIG. 4) and is operated by the drive device 28. Further, as shown in FIG. 1, the drive unit 36 includes a rotary encoder 50. 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 detection results to the control device 34. The control device 34 determines the moving direction, moving distance, and moving speed of the loading platform 18 based on the signal input from the rotary encoder 50.

Further, an auxiliary movable crab knit 52 is attached below the loading platform 18. The M assisting crab knit 52 has a motor with a smaller output than the motor 48 for raising and lowering the loading platform, and the driving force of this motor drives the pinion gear to move the loading platform 1.
8 can be given a moving force in the vertical direction to assist the movement of the loading platform 18 by the drive unit 36.

As shown in FIG. 1, a transfer device 54 is placed on the floor of the loading platform 18. The transfer machine 54 is composed of a wide and endless belt supported by a pair of rollers.
By rotating this belt with the driving force of the transfer device drive motor 56 (see Fig. 4), construction materials placed on the upper belt surface (conveyance surface) can be transported like a well-known belt conveyor. can do. The transfer machine driving motor 56 is connected to the drive device 28 and is operated by the drive device 28 .

Further, a plurality of belt conveyors 58 are arranged on each floor of the building. Each belt conveyor 58 is driven by a belt conveyor driving motor 6 similar to the transfer machine 54.
By rotating with a driving force of 0 (see Section 4), construction materials, etc. on the conveying surface can be conveyed. The belt conveyor drive motor 60 is connected to the drive device 28 and is operated by the drive device 28 . The belt conveyor 58 on each floor is installed so that the conveyance surface of the belt conveyor 58 is substantially continuous with the conveyance surface of the transfer device 54 when the loading platform 18 is stopped on the floor. This results in
Depending on the rotating direction of the belts of the transfer machine 54 and the belt conveyor 58, construction materials and the like can be transported so as to be loaded onto the loading platform 18 or unloaded from the loading platform 18. In this way, the transfer machine 54 and the belt conveyor 58 constitute the conveying means of the present invention.

A load cell 62 is attached to the transfer machine 54. The load cell 62 detects the weight of the object to be transported, such as construction materials, placed on the transfer device 54 by detecting the amount of displacement of the transfer surface of the transfer device 54 . The load cell 62 is the control device 34
(see FIG. 4), and outputs the detection results to the control device 34. The control device 34 determines the weight of the transported object loaded onto the loading platform 18 and the weight of the transported object to be unloaded from the loading platform 18 based on the change in the weight of the transported object detected by the load cell 62.

Further, as shown in FIG. 1, an optical sensor 64 is provided on each floor corresponding to the belt conveyor 58. The optical sensor 64 detects the presence or absence of construction materials, etc. on the conveyance surface of the belt conveyor 58. As shown in FIG.
is connected to the control device 34 and outputs the detection result to the control device 34.

Further, as shown in FIG. 2, an optical fiber cable 66 is connected to the loading platform 18. fiber optic cable 6
6, a limit switch 30 attached to the loading platform 18;
, the output signals of the rotary encoder 50, the load cell 62, and the control signals that control the operations of the door opening/closing motor 26, the platform lifting/lowering motor 48, and the transfer machine driving motor 60 (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 each sensor connected to the control device 34, the door opening/closing motor 26, the loading platform lifting motor 48, Motor control information for controlling the operation of the loading machine drive motor 56 and the belt conveyor drive motor 60 is output to the drive device 28. The drive device 28 operates each motor connected to the drive device 28 based on this 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 for the lifting and transporting device inputted in advance through the keyboard 70, and outputs the adjusted result to the control device 34 as operation schedule data. Further, the control device 34 outputs operation performance data to the personal computer 68. This operation performance data includes data indicating when and from which floor the loading platform 18 moved based on the motor control information, and the transported objects loaded onto the loading platform 18 or the transported objects unloaded from the loading platform 18. It consists of data indicating the weight of an object. The personal computer 68 temporarily accumulates and collects this operation performance data in a storage medium, etc., and then edits it and displays it on a CRT? Display on 2.

Next, the operation of the first embodiment will be explained. The person in charge of each construction project in which the lifting and transporting equipment is scheduled to use the equipment enters the data for reserving use on the personal computer 6 via the keyboard 70.
Enter into 8. For example, this reservation data includes the name of the user, the name of the material, the date and time of transportation, the loading floor and weight of the material when loading the material onto the loading platform 18, the loading and unloading floor when loading and unloading the material from the loading platform 18, and the weight of the material. etc., by manually generating data. The personal computer 68 adjusts the input reservation data that has overlapping transportation dates and times, and generates operation schedule data. The lifting and transporting device is operated based on the operation schedule indicated by this operation schedule data.

The operation of the control device 340 that controls the operation of this lifting and transporting device will be explained with reference to the flowchart of FIG. Note that the flowchart in FIG. 5 is executed when the control device 34 is powered on.

In step 100, today's date is read from the timer built in the control device 34, and the personal computer 68
The operation schedule data corresponding to the date is imported from. For example, this operation schedule data is structured as shown in the table below.
The transportation schedule for materials used in each construction project is arranged in ascending order of transportation time.

In the table, the transport data starts at 9:00:09, and 10 tons of objects are loaded onto the loading platform 18 on the 1st floor and moved to the 5th floor. The operation schedule is expressed in which the cargo is loaded and unloaded and moved to the 8th floor, and all transported items are loaded and unloaded on the 8th floor and moved to the 1st floor. Further, at 9:05:00, 8 tons of objects are to be transported from the first floor to the sixth floor.

A company that uses a lifting and transporting device to lift construction materials, etc. lifts construction materials, etc. onto the belt conveyor 58 on the loading floor a little before the transportation time determined by the operation schedule data. Place. For example, according to the transportation schedule shown in the table above, construction materials and the like are placed on the belt conveyor 58 on the first floor a little before 9:00:09. Next step 102
Then, the current time is read from the timer, and it is determined whether the current time is the transportation time indicated in the operation schedule data. If the current time is not the transportation time, the determination in step 102 is repeated until the transportation time is reached. Step 1
If the determination in step 02 is affirmative, it is determined in step 103 whether materials or the like are placed on the belt conveyor 58 on the loading floor based on the signal input from the optical sensor 64. If no materials are placed, an alarm or the like is generated in step 104 to notify the administrator, etc., and the process returns to step 102. This allows the manager to recognize that the lifting and transporting equipment is not operating as planned.

If the determination in step 103 is affirmative, in step 105 the loading platform lifting motor 48 is driven via the drive device 28 to move the loading platform 18 in the direction of the loading floor (in the ascending or descending direction), and the rotary encoder 50 When the moving distance of the loading platform 18 detected by the above-described distance reaches the distance corresponding to the loading floor, the driving of the loading platform lifting motor 48 is stopped. This causes the loading platform 18 to stop at the loading floor.

In step 106, the door opening/closing motor 26 is driven to open the door 2.
2. Move 24 in the opening direction. In the next step 108, the transfer machine drive motor 56 and the loading floor belt conveyor drive motor 60 are driven. As a result, objects to be conveyed, such as construction materials, placed on the belt conveyor 58 on the loading floor are moved onto the transfer machine 54 in the loading platform 18.

In step 110, the weight of the object moved onto the transfer machine 54 is monitored based on a signal manually input from the load cell 62, and it is determined whether 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 transfer machine 54 are operated until the set weight is reached.

If the determination in step 110 is affirmative, the process moves to step 112, where the door opening/closing motor 26 is driven to move the doors 22, 24 in the closing direction. In step 114, the loading platform lifting motor 48 is driven to move the loading platform 18 to the loading/unloading floor, and in step 116, the door opening/closing motor 26 is driven again to move the door 22.24 in the opening direction. For example, the above 9
In the transport starting at 0:00:00:90, the loading platform 18 is moved to the 5th floor.

In step 118, the transfer machine drive motor 56 and the belt conveyor drive motor 60 on the loading/unloading floor are driven to load and unload the objects placed on the transfer machine 54.

In step 120, similarly to step 110, the weight of the transported object loaded and unloaded from the transfer machine 54 is monitored based on the output signal of the load cell 62, and it is determined whether the weight has reached the weight 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 belt conveyor 5 are used until the set weight is reached.
Activate 8.

If the determination in step 120 is affirmative, in step 122 the door opening/closing motor 26 is driven to move the doors 22, 24 in the closing direction. In the next step 124, it is determined whether the loading and unloading of the transported objects has been completed. For example, in the above table, for transportation starting at 9:00 minutes and 9 seconds, the operation schedule data is set such that the transported items loaded on the first floor are loaded and unloaded at two locations on the 5th floor and the 8th floor. In such a case, the determination in step 124 is negative and step 1
14, and repeats steps 114 to 124 until the determination in step 124 is affirmative. Note that three or more floors can also be set as loading and unloading floors.

If the determination in step 124 is affirmative, step 126
Then, the transportation reservations for which the transportation process was actually performed in steps 104 to 124 are extracted from the operation schedule data, and are stored in the personal computer 68 as operation performance data.
Transfer to. Note that the personal computer 68 stores the transferred operation record data in a storage medium such as a magnetic disk and collects the operation record data. This results in
It is possible to save labor in collecting operation results.

After completing the process in step 126, the process returns to step 102.
Steps 102 to 126 are repeated until all materials have been transported.

In this way, since construction materials and the like are automatically transported based on the operation schedule data, there is no need for operating personnel and cargo handling personnel, making it possible to save labor in transporting construction materials and the like.

Next, the operation of the personal computer 680 to edit and output the collected operating results will be explained with reference to the flowchart shown in FIG. The flowchart in FIG. 6 is executed when the personal computer 68 is instructed to edit the operating results via the keyboard 70.

In step 150, it is determined whether an editing method has been specified. In this embodiment, the personal computer 68
can edit operation performance data using a variety of editing methods. For example, graphs showing changes in lifting operating time during the construction period as shown in Figure 7 (A), changes in lifting weight during the construction period (E) as shown in Figure 7 (B), etc. It is possible to compile a list of lifting time, weight, number of lifts, and their rate, or to calculate the number of lifts per unit floor area of a building from the total number of lifts. When the editing method is specified, in step 152, the operation record data is read from the storage medium. In the next step 154, the operation record data is edited according to the specified editing method. As a result, graphs such as those shown in FIGS. 7(A) and 7(B), the above-mentioned list, and the like are created. In step 156, the editing result is displayed on the CRT 72, and the process ends.

By referring to this editing result, it is possible to analyze, for example, the appropriate number of lifting and transporting devices to be installed relative to the total floor area of the building, the timing of adding lifting and transporting devices within the construction period, and the like. Furthermore, the management and operation of the lifting and transporting equipment can be improved. For example, it is possible to analyze an island operation method for efficiently operating each of a plurality of lifting and transport devices, and to change the method of adjusting transportation reservations using the personal computer 68 based on the analysis results. In this way, the operation of the lifting and transporting device can be easily evaluated and analyzed, and labor savings can be achieved.

Note that in this embodiment, transportation reservations for which transportation processing has been performed are extracted from the operation schedule data and used as operation performance data, but sensors that detect the movement of the loading platform and sensors that detect the weight of materials to be transported, may be provided, and the detection results of these sensors may be collected as operation performance data. In this case, operation performance data can also be collected for manually operated elevator systems.

Second Embodiment Next, a second embodiment of the present invention will be described. Note that the same parts as in the first embodiment are denoted by the same reference numerals, and the 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, the personal computer 68
In the same way as in the first embodiment, operation schedule data consisting of a large number of transportation schedules is imported.

In step 152, the operation schedule data is referred to, and from among the large number of transportation schedules, a transportation schedule that has not yet been subjected to transportation processing and has the earliest set transportation time is set as a transportation target. Determination as to whether or not the transportation process has not been executed can be made by referring to data indicating whether or not the transportation process provided for each transportation schedule has been executed. Note that at the start of the transportation process, the data for each transportation schedule is data representing that the transportation process has not been executed.

In the next step 154, the current time is read, and it is determined whether the current time is after the transportation time set in the transportation schedule for the transportation target.

If the current time is earlier than the transportation time of the object to be transported, step 154 is repeated until the above determination is affirmed. If the determination in step 154 is affirmative, the process moves to step 156, where it is determined whether materials or the like are placed on the belt conveyor 58 at the loading floor set for the scheduled transportation of the object to be transported. This determination is made based on a human signal from the optical sensor 64 on the loading floor.

If the determination in step 156 is affirmative, step 158
Then, it is determined whether or not there is space on the belt conveyor 58 at the loading/unloading floor set in the transportation schedule of the transportation target, that is, whether or not the belt conveyor 58 at the loading/unloading floor can perform the loading/unloading process. judge. This determination is made based on a human signal from the optical sensor 64 on the loading/unloading floor. If the determination at step 158 is affirmative, it is possible to carry out the transportation process for the object to be transported, and therefore, at step 160, the same material transportation process as in steps 105 to 126 in FIG. 5 is performed.

Further, if the determinations in step 156 and step 158 are negative, it is determined that the transportation process for the transportation target cannot be performed, and the process proceeds to step 162. Step 16
In step 2, the next earliest transportation schedule of the transportation target for which transportation processing has not been executed and for which the transportation time is currently set is reset as the transportation target, and the process returns to step 156. If the determinations in step 156 and step 158 are affirmative, it is determined that the re-set transportation target can be transported, and in step 160, the transportation processing of the materials, etc. described above is performed.

In the next step 162, data indicating that the transportation process has been executed is added to the transportation schedule of the transportation target. After executing step 162, the process returns to step I52 and the above processing is repeated.

Through the above control, for example, it is determined whether or not the first transportation process is possible, and if the first transportation process is not possible, it is determined whether or not the second transportation process is possible.

Further, if the second transportation process is not possible, it is determined whether or not the third transportation process is possible, and if it is possible, the third transportation process is performed. As a result, in principle, transportation processing is performed according to the operation schedule, and if it is determined that it is impossible to carry out transportation processing at the scheduled transportation time, transportation processing that can be carried out is performed first. Materials, etc. can be transported and processed efficiently.

In addition, it is determined whether or not the first transportation process is possible, and if it is not possible, another transportation process is performed, and the above determination is performed as many times as necessary until the first transportation process is performed. Actual results do not deviate significantly from the operating schedule.

In the above embodiment, the lifting and transporting device had a single elevator section 12, but it is also possible to improve the transporting capacity by providing a plurality of elevator sections.

Further, in the above embodiment, the editing result of the operation record data is displayed on the CRT 72, but it may be printed using a printer or the like.

In addition, in the above embodiment, it was determined whether the amount of transported objects to be loaded and unloaded was as planned or not based on the weight detected by the load cell 62, but infrared sensors installed in the loading platform 18, etc. The determination may also be made by counting the number of objects to be loaded and unloaded. Furthermore, it is also possible to count the number of passengers getting on and off the loading platform 18 using this infrared sensor, and to store and edit the operation results of the workers and the like.

〔Effect of the invention〕

As explained above, in the present invention, based on the input schedule data, the objects to be transported located on the loading floor at the transportation date and time are loaded into the loading platform, and the platform loaded with the objects to be transported is moved to the loading and unloading floor. Since the loading and unloading is controlled from the rear loading platform, an excellent effect can be obtained in that it is possible to save labor in transporting construction materials, etc.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing a part of a building in which the lifting and transporting device according to the present invention is installed, Fig. 2 is a front view showing the elevator section of the lifting and transporting device, and Fig. 3 is a side view of the elevator section. , FIG. 4 is a chart showing an example of the editing result of the operation record of lifting and transporting equipment, and FIG. 8 is a flowchart explaining the operation of the second embodiment. 18... Loading platform, 34... Control device, 48... Motor for lifting/lowering the loading platform, 54... Transfer machine, 58... Fist/belt conveyor, 68... Personal computer.

Claims (1)

[Claims] (1) A loading platform capable of accommodating an object to be transported, a moving means for moving the loading platform in an up-and-down direction, a conveying means for transporting the object to be loaded onto or unloaded from the loading platform, and at least the object to be transported. an input means for inputting schedule data representing the date and time of transporting the object, a loading floor, and a loading/unloading floor; and an input means for inputting schedule data representing the date and time of transporting the object, a loading floor, and a loading/unloading floor; and based on the input schedule data, the transported object located on the loading floor at the transport date and time is placed into a loading platform. A lifting and transporting device comprising: a control means for controlling the moving means and the conveying means so that the loading platform loaded with objects to be loaded and transported is moved to the loading/unloading floor and then unloaded from the loading platform.