Rack device in elevator

Abstract

To provide a shelf device in an elevator capable of adjusting the height of a shelf board according to the size of a cargo.SOLUTION: The in-elevator shelf device 10 applied to an elevator having a car 1 includes a movable shelf board 11 provided in the car 1 and liftably supported by a support rail 12, a lifting device 30 for lifting the movable shelf board 11, and a control device 20 for controlling the lifting device 30. The movable shelf board 11 is placed on a floor part when stored, and a control device 20 raises the movable shelf board 11 from the floor part when used.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a shelf device provided in an elevator car. [Background technology]

[0002] Generally, commercial elevators for transporting luggage do not have permanent shelves on which to place luggage other than on the floor. Therefore, when transporting luggage that cannot be stacked in an elevator, loading of the luggage must be stopped even if there is space left above the luggage. In this case, the elevator cannot be loaded to its loading limit, which reduces the elevator's operating efficiency.

[0003] Patent Document 1 discloses a shelf device configured such that a plate body rotatably attached to a wall panel inside a car is positioned horizontally and supported by supports provided on support columns. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-37567 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the shelf device of the above-mentioned prior art cannot adequately accommodate different sizes of luggage because the height at which the shelf is supported is fixed depending on the position at which the plate is attached. For example, the shelf device of the above-mentioned prior art cannot be used when transporting luggage that is slightly taller than the position at which the plate is attached. Ultimately, the loading of luggage must be completed with space left above the luggage, and the improvement of elevator operation efficiency is not sufficiently considered. Therefore, there is a need for an elevator that can adjust the height of the shelf according to the size of the luggage and can accommodate more luggage in one transport. [Means for solving the problem]

[0006] The elevator shelf device of the present invention is characterized by comprising a movable shelf supported on a support rail so that it can be raised and lowered, a lifting device for raising and lowering the movable shelf, and a control device for controlling the lifting device, both of which are located inside the elevator car. [Effects of the Invention]

[0007] According to the present invention, the height of the shelves can be adjusted by raising and lowering them depending on the size of the luggage, so luggage can be loaded above luggage placed on the floor. Compared to when luggage is placed only on the floor, more luggage can be transported at one time, improving the elevator's operating efficiency. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of the interior of an elevator car when a movable shelf plate of an elevator shelf device according to an embodiment is stored. FIG. [Figure 2] 1 is an enlarged view showing the main configuration of an elevator shelf device according to an embodiment of the present invention; [Figure 3] 1 is a schematic diagram of the interior of an elevator car when a movable shelf plate of an elevator shelf device according to an embodiment is in use. FIG. [Figure 4A] 1 is a schematic diagram illustrating the interior of an elevator car, showing the general configuration of a dispensing mechanism of an elevator shelf device, which is an example of an embodiment. FIG. [Figure 4B] FIG. 2 is a plan view of a movable shelf plate of an elevator shelf device according to an embodiment. [Figure 5] FIG. 10 is a schematic diagram of the interior of an elevator car showing the general configuration of a dispensing mechanism of an elevator shelf device, which is another example of an embodiment. [Figure 6] FIG. 10 is a schematic diagram illustrating the interior of an elevator car, showing the general configuration of a dispensing mechanism of an elevator shelf device, which is another example of an embodiment. [Figure 7] FIG. 10 is a schematic diagram illustrating the interior of an elevator car, which is another example of an embodiment, showing the general configuration of an elevator shelf device. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the embodiments described below are merely examples, and the present invention is not limited to the following embodiments.

[0010] The configuration of an elevator shelf device 10 and the raising and lowering of a movable shelf 11 will be described with reference to Figures 1 to 3. Figure 1 is a schematic diagram of the inside of an elevator car when the movable shelf of an elevator shelf device, which is an example of an embodiment, is stored. Figure 2 is an enlarged view showing the configuration of a main part of a lifting device of an elevator shelf device, which is an example of an embodiment. Figure 3 is a schematic diagram of the inside of an elevator car when the movable shelf of an elevator shelf device, which is an example of an embodiment, is used.

[0011] As shown in Figure 1, the car 1 of a freight elevator is formed in a hollow, roughly rectangular parallelepiped shape and is composed of a car floor 2, a ceiling 3, and a side wall 4 erected between the car floor 2 and the ceiling 3. A car door 7 is installed on the front of the car 1 opposite a hall door 6 provided at a hall 5. When the hall door 6 and the car door 7 open in conjunction with each other, an opening 8 for loading and unloading freight is formed.

[0012] The car 1 is equipped with a movable shelf 11 inside. The movable shelf 11 is supported on support rails 12 via a lifting device 30, which will be described later, so that it can be raised and lowered. When stored, the movable shelf 11 is placed in layers on the floor, i.e., on the car floor 2. When in use, a control device 20, which will be described later, raises the movable shelf 11 from the floor depending on the size (height) of the luggage.

[0013] The movable shelf 11 is not particularly limited as long as it is a generally plate-shaped part, but for example, it may have a configuration similar to that of the car floor 2, in which a floor plate is placed on the upper surfaces of multiple floor beams and fixed by welding or the like. In this case, it is possible to provide a lightweight shelf plate that is excellent in rigidity and strength.

[0014] The size of the horizontal surface of the movable shelf 11 is not particularly limited as long as it does not interfere with the side wall 4 and support rail 12 of the car 1 when it is raised or lowered. It is preferable that the size of the horizontal surface of the movable shelf 11 be approximately the same as the area of ​​the car floor 2 of the car 1 so that more cargo can be loaded onto the movable shelf 11 in the car 1.

[0015] In order to install the lifting device 30 described later in Figure 2 inside the movable shelf 11, it is preferable that the side facing the side wall 4 has an opening in the part opposite the support rail 12, and that there is a space from the opening to the inside of the movable shelf 11 to contain the lifting device 30.

[0016] In this embodiment, there is one movable shelf 11, but this is not limited to one, and there may be two or more. When the elevator shelving device 10 is equipped with two or more movable shelves 11, it becomes possible to divide the inside of the car 1 into smaller compartments compared to when there is only one movable shelf 11, and more luggage can be transported at one time.

[0017] The storage position of the movable shelf 11 is not particularly limited as long as it is on the floor, but it is preferable that the top surface of the movable shelf 11 and the landing 5 are at the same height when stored, so that it is easy to load luggage onto the movable shelf 11.

[0018] The support rails 12 are provided, for example, in pairs, in the vertical direction of the side walls 4 erected on the left and right sides when viewed from the car door 7 of the car 1. In this case, the installation location of the support rails 12 is preferably the center of the width direction of each side wall 4. The length of the support rail 12 is equal to or less than the height of the car 1. The support rail 12 is, for example, a rail with a U-shaped cross section, and is installed so as to have an opening on the interior side of the car 1. A rack gear 22 of the same length as the support rail 12 is fixed to the back portion of the support rail 12 facing the opening, and a guide groove is formed between the rack gear 22 and the side portions that rise to the left and right from the back portion. Specifically, the guide groove is formed by bending the ends of the side portions of the support rail 12 inward, and the support rail 12 slidably holds rollers 23a and 23b, which will be described later with reference to FIG. 2.

[0019] The movable shelf 11 of the elevator shelving device 10 is raised and lowered by an operation panel 43 installed, for example, at the landing 5. In addition to operating the raising and lowering of the movable shelf 11, the operation panel 43 is also used to operate the baggage release mechanism 16, the rotating unit 17 that tilts the shelf, and the conveyor 18. The operation panel 43 may be installed at the landing 5 or may be, for example, a remote control.

[0020] The elevator shelf device 10 further includes a sensor 15 inside the car 1. The sensor 15 is, for example, a distance sensor installed on the ceiling 3 of the car 1. Although details will be described later, by using the sensor 15 to detect the proximity of the luggage loaded on the movable shelf 11 to the ceiling 3, it is possible to prevent the luggage loaded on the movable shelf 11 from colliding with the ceiling 3 when the movable shelf 11 is raised.

[0021] 2, the lifting device 30 that supports the movable shelf 11 has a case 31 with a hollow cross section, and includes a motor 32, a worm gear unit 33 that is rotated by the motor 32, and a pinion gear 34 that is rotated by the worm gear unit 33 within the case 31. The case 31 holds the motor 32, the worm gear unit 33, and the pinion gear 34, and also forms the exterior of the lifting device 30.

[0022] The case 31 may be, for example, a substantially rectangular parallelepiped part with a hollow cross section, and the side surface facing the support rail 12 is open so that the pinion gear 34 and the rack gear 22 can mesh with each other. The case 31 of the lifting device 30 is sized to be accommodated within the movable shelf 11, and is inserted through an opening provided on the side surface facing the side wall 4 of the movable shelf 11 and installed inside the movable shelf 11. When the lifting device 30 is installed inside the movable shelf 11, there is no need to consider interference between the lifting device 30 and the luggage or movable shelf 11 when loading luggage or storing luggage on the movable shelf 11, as compared to when the lifting device 30 is installed exposed to the outside of the movable shelf 11, and space inside the car 1 is also secured. The motor 32 of the lifting device 30 is controlled by a control device 20, which will be described later.

[0023] Of the surfaces of the case 31 of the lifting device 30, at least the upper and lower surfaces are fixed to the inside of the movable shelf 11. In this case, the lifting device 30 supports the movable shelf 11.

[0024] Of the remaining surfaces of the case 31 of the lifting device 30, three side surfaces excluding the surface facing the support rail 12 may also be fixed to the inside of the movable shelf 11. In this case, the lifting device 30 can support the movable shelf 11 more firmly.

[0025] The motor 32 provided inside the lifting device 30 has a shaft 35 that rotates around a rotation axis O parallel to the Z axis. The worm gear unit 33 has a worm gear 36, a reducer 37 formed by meshing multiple gears, and bearings 38a and 38b. The worm gear 36 is supported by the bearings 38a and 38b so as to be rotatable around the rotation axis O. The worm gear 36 is connected to the shaft 35 of the motor 32 via a coupling member 39, and rotates coaxially with the shaft 35.

[0026] The pinion gear 34 is configured to receive the rotational force of the worm gear 36 via a reducer 37. The pinion gear 34 is meshed with a rack gear 22 provided in the vertical direction of the support rail 12, thereby forming a rack-and-pinion mechanism. The rack-and-pinion mechanism is driven by a motor 32, causing the lifting device 30 to raise and lower the support rail 12.

[0027] The lifting device 30 is slidably connected to the support rail 12 via rollers 23a and 23b. Specifically, by attaching the rollers 23a and 23b to the guide grooves of the support rail 12, the lifting device 30 is held on the support rail 12 without falling off even when moved in a direction against the direction of gravity. In this case, the movable shelf 11 supported by the lifting device 30 moves up and down along the support rail 12 via the lifting device 30.

[0028] The number of lifting devices 30 provided is the same as the number of support rails 12. That is, the movable shelf 11 supported by a pair of left and right support rails 12 is provided with one lifting device 30 on each side. The number of support rails 12 is not limited to one pair, and two or more pairs may be provided, but it is preferable that they are arranged so that the movable shelf 11 can be raised and lowered stably, as in this embodiment.

[0029] Next, with reference to FIG. 3 , a case where cargo 51 is loaded onto the movable shelf 11 and cargo 52 is loaded onto the car floor 2 will be specifically described. After cargo 51 is loaded onto the movable shelf 11, the control device 20 controls the lifting device 30 via the operation panel 43 to raise the movable shelf 11. In this case, the movable shelf 11 is stopped at a position where the distance between the lower end of the movable shelf 11 and the surface of the car floor 2 is equal to or greater than the height of the cargo 52 and where the cargo 51 will not collide with the ceiling 3 based on information from the sensor 15. Then, the cargo 52 is loaded onto the car floor 2. Compared to the conventional case where cargo 52 is placed only on the car floor 2, by raising the movable shelf 11, it is possible to load cargo 51 above the cargo 52 in addition to the cargo 52. This increases the amount of cargo that can be transported at one time.

[0030] To facilitate loading of luggage onto the car floor 2 after the movable shelf 11 has been raised, it is preferable that the upper surface of the car floor 2 after the movable shelf 11 has been raised be at the same height as the landing 5. In this case, in order to raise and lower the car floor 2, the car floor 2 may also be provided with the same lifting device 30 as the movable shelf 11, and may be supported on the support rails 12 so as to be able to rise and lower.

[0031] The control device 20 is configured by a computer, for example, a microcomputer, and includes a processor, memory, and each functional unit. The processor includes, for example, a CPU (Central Processing Unit). The memory includes a hard disk drive (HDD), a semiconductor memory, etc. The semiconductor memory includes a non-volatile memory such as a ROM (Read Only Memory) or a volatile memory such as a RAM (Random Access Memory). The non-volatile memory stores control programs, predetermined thresholds, etc. in advance. The volatile memory temporarily stores read programs and processing data. The processor reads programs, etc. stored in advance in the memory and executes the processing of each functional unit. The control device 20 may be installed, for example, in a hoistway where an elevator moves up and down, or in a machine room above the hoistway, but is not limited to these. The installation location of each functional unit of the control device 20 is not limited to within the control device 20, and may be installed outside the control device 20 as appropriate.

[0032] For example, the control device 20 receives an operation signal output from a control panel 43 installed at each landing 5, etc., and transmits a control signal to each functional unit. Specifically, when a shelf-lifting operation signal is output from the control panel 43, the control device 20 receives the signal and outputs a shelf-lifting control signal to the lifting device 30. The lifting device 30 receives the shelf-lifting control signal output from the control device 20 and rotates the motor 32. The rotation of the motor 32 drives the rack-and-pinion mechanism, causing the movable shelf 11 to rise along the support rail 12 via the lifting device 30. When the shelf-lifting operation signal from the control panel 43 is stopped, the output of the shelf-lifting control signal from the control device 20 is stopped and the rotation of the motor 32 is stopped, thereby stopping the rise of the movable shelf 11.

[0033] The car floor 2 may be equipped with a lifting device 30, similar to the movable shelf 11, and its elevation may be controlled by the control device 20. When raising the car floor 2, it is not necessary to raise it above the height of the landing 5, so the car floor 2 may be equipped with a position sensor or the like that can detect its position, and may be configured to output a signal to the control device 20 when it has risen to a predetermined height, thereby stopping the elevation.

[0034] On the other hand, when a shelf lowering operation signal is output from the operation panel 43, the control device 20 receives this signal and outputs a shelf lowering control signal to the lifting device 30. The lifting device 30, which has received the shelf lowering control signal output from the control device 20, reverses the rotation of the motor 32. As the motor 32 rotates in the reverse direction, the rack and pinion mechanism is driven in the opposite direction to the direction of lifting, and the movable shelf 11 is lowered along the support rails 12 via the lifting device 30. When the shelf lowering operation signal from the operation panel 43 is stopped, the output of the shelf lowering control signal from the control device 20 is stopped and the rotation of the motor 32 is stopped, thereby stopping the descent of the movable shelf 11.

[0035] When the movable shelf 11 is lowered after the cargo on the car floor 2 has been unloaded, both the movable shelf 11 and the car floor 2 are lowered to the storage position. For this reason, like the car floor 2, the movable shelf 11 may also be provided with a position sensor or the like that detects its position, and when the car floor 2 and the movable shelf 11 have lowered to a predetermined position, a signal may be output to the control device 20 to stop the descent.

[0036] When there are no shelves installed inside the car 1 or when transporting luggage that cannot be stacked, all of the luggage must be placed on the floor, and once the luggage is loaded on the floor, loading of luggage must be temporarily stopped even if there is space remaining above the luggage. However, by using the control device 20 to raise and lower the movable shelf 11 via the lifting device 30, it is possible to provide shelves in the car 1 according to the size (height) of the luggage. By providing shelves in the space above the luggage placed on the floor, it becomes possible to load more luggage without stacking the luggage, increasing the amount of luggage that can be transported at one time and improving the operating efficiency of the elevator.

[0037] The control device 20 generates a shelf board lift stop signal based on information received from the sensor 15 in addition to the operation signal from the operation panel 43 , and outputs the signal to the lifting device 30 for the movable shelf board 11 .

[0038] The sensor 15 provided on the ceiling 3 of the car 1 is, for example, a distance sensor, and includes a light-projecting unit and a light-receiving unit. The light-projecting unit irradiates laser light of a predetermined wavelength onto the interior of the car 1, particularly onto the movable shelf 11 and the luggage loaded thereon. The light-receiving unit is configured to detect light of a wavelength equivalent to that of the laser light irradiated from the light-projecting unit. The movable shelf 11 and the luggage loaded thereon reflect a portion of the laser light irradiated from the light-projecting unit. A portion of the reflected laser light returns to the sensor 15. The light-receiving unit of the sensor 15 detects the returned reflected light and outputs detection result information to the control device 20.

[0039] The control device 20 calculates the distance between the cargo loaded on the movable shelf 11 and the ceiling section 3 based on the detection result information from the sensor 15, and determines whether the cargo loaded on the movable shelf 11 has come closer to the ceiling section 3 than a predetermined distance. When the control device 20 determines that the cargo loaded on the movable shelf 11 has come closer to the ceiling section 3 than the predetermined distance, it generates a shelf lift stop signal and outputs it to the lifting device 30. Upon receiving the shelf lift stop signal output by the control device 20, the lifting device 30 stops the rotation of the motor 32 and stops the lifting of the movable shelf 11.

[0040] Next, the luggage dispensing mechanism 16 provided on the movable shelf 11 will be described with reference to Figures 4A and 4B. Figure 4A is a schematic diagram of the interior of the car showing the general configuration of the dispensing mechanism of an elevator shelf system according to an embodiment. Figure 4B is a plan view of a movable shelf of an elevator shelf system according to an embodiment.

[0041] As shown in Fig. 4A, the movable shelf 11 is equipped with a baggage discharge mechanism 16. In a commercial large-sized baggage elevator, when the movable shelf 11 is raised, it is expected that it will be difficult for a worker at the landing 5 to manually unload baggage 51a loaded at the back of the shelf during unloading. In this case, the movable shelf 11, which can discharge baggage 51a in the direction of the loading / unloading opening 8 using the baggage discharge mechanism 16, improves workability.

[0042] As shown in FIG. 4B , the baggage discharge mechanism 16 includes a rail 41 extending in the depth direction of the movable shelf 11 and a pusher 40 fixed to the rail 41. In order to load as many bags as possible onto the movable shelf 11, the length of the rail 41 is preferably approximately the same as the length of the movable shelf 11 in the depth direction, and the rail 41 is preferably positioned close to both ends of the movable shelf 11. The rail 41 has a slider that slidably engages with the rail 41. Specifically, the rail 41 includes a ball screw supported at both ends by bearings, and the slider is threadedly engaged with the ball screw. A drive source such as a motor is connected to one end of the ball screw, and the slider slides along the rail 41 by rotating the ball screw forward and backward with the driving force of the motor.

[0043] The pusher 40 is fixed to the pair of rails 41 via a slider. The shape of the pusher 40 is not particularly limited, but it may be a generally rectangular plate suspended over the pair of rails 41. In this case, it is possible to simultaneously remove all the packages on the movable shelf 11, compared to removing the packages individually using an arm or a gripping device. The height of the pusher 40 is not particularly limited, but it is preferably a height that does not cause the sensor 15 to determine that the movable shelf 11 has come closer than a predetermined distance when the movable shelf 11 is raised. When the rails 41 are positioned close to both ends of the movable shelf 11, the pusher 40 fixed thereto has a length that is approximately the same as the length of the movable shelf 11 in the horizontal direction.

[0044] The material of the pusher 40 is not particularly limited, but examples include a light metal such as aluminum, which is lightweight and strong, engineering plastic, resin, etc. The pusher 40 is attached to the rail 41 via a slider, and the slider moves horizontally as the motor rotates forward and backward, causing the pusher 40 to move back and forth on the rail 41.

[0045] Specifically, when a discharge mechanism operation signal is output from the operation panel 43 to the control device 20, the control device 20, upon receiving this, outputs a discharge mechanism control signal to the baggage discharge mechanism 16. The baggage discharge mechanism 16, which has received the discharge mechanism control signal output from the control device 20, rotates the ball screw forward using the driving force of the motor provided in the rail 41. As the ball screw rotates, the pusher 40 moves from the rear end of the rail 41 to the front side via the slider threadedly engaged with the ball screw, and the baggage discharge mechanism 16 dispenses baggage 51a in the direction of the loading / unloading opening 8.

[0046] In a large freight elevator, when the movable shelf 11 with luggage 51a loaded on the rear portion of the shelf is raised, it is difficult for an operator to unload the luggage 51a. However, the elevator shelving unit 10, which is equipped with the movable shelf 11 having the luggage discharge mechanism 16, can operate the luggage discharge mechanism 16 by operating the operation panel 43, and the luggage 51a loaded on the rear portion of the movable shelf 11 can be discharged in the direction of the loading / unloading opening 8, making it easy to load and unload luggage. When the operator stops the output of the discharge mechanism operation signal from the operation panel 43, the output of the discharge mechanism control signal from the control device 20 stops, and the operation of the luggage discharge mechanism 16 stops.

[0047] To unload the dispensed baggage and return the pusher 40 to its original position, the baggage dispensing mechanism 16 can be stored via the operation panel 43. Specifically, the control device 20 receives a dispensing mechanism storage signal output from the operation panel 43 and outputs a dispensing mechanism return signal to the baggage dispensing mechanism 16. The baggage dispensing mechanism 16, which receives the dispensing mechanism return signal output from the control device 20, reverses the ball screw using the driving force of the motor provided in the rail 41. As the ball screw rotates, the pusher 40 moves to the far end of the rail 41 via the slider threadedly engaged with the ball screw, and the pusher 40 returns to its original position.

[0048] Next, a mechanism for tilting the shelf downward during unloading will be described with reference to Fig. 5. Fig. 5 is a schematic diagram of the inside of the car showing the general configuration of a dispensing mechanism of an elevator shelf device according to another embodiment.

[0049] As shown in FIG. 5, the movable shelf 11 is rotatably installed relative to the support rail 12 via a rotating unit 17. The rotating unit 17 includes a rotation shaft that supports the movable shelf 11 in the width direction, a rotation device that is rotatable relative to the rotation shaft, and a motor, a reducer, and the like for driving the rotation device. In this case, the lifting device 30 is sized to be fixedly installed inside the rotation shaft of the rotating unit 17. The movable shelf 11 is rotatably connected to the rotation device of the rotating unit 17 as a unit. The rotation device transmits the driving force transmitted from the motor to the movable shelf 11, causing the movable shelf 11 to tilt at a predetermined angle as the rotation device rotates. A single rotating unit 17 may be provided as a whole, penetrating the movable shelf 11 in the width direction, or two rotating units 17 may be provided for each movable shelf 11 at a position that includes the lifting device 30.

[0050] When a shelf tilt operation signal is output from the operation panel 43, the control device 20 receives this signal and outputs a shelf tilt control signal to the rotating unit 17. The rotating unit 17, which has received the shelf tilt control signal from the control device 20, rotates the motor in the forward direction. The driving force of the motor rotates the rotating device, and the movable shelf 11, which is rotatably connected to the rotating device, rotates. By rotating the movable shelf 11 and tilting it downward from the back of the car toward the loading / unloading opening 8, the baggage 51a loaded on the movable shelf 11 slowly moves toward the loading / unloading opening 8.

[0051] After the movable shelf 11 is tilted downward toward the loading / unloading opening 8 and unloaded, a shelf tilt release operation signal is output from the operation panel 43 to return the movable shelf 11 to its original position. Specifically, upon receiving the shelf tilt release operation signal from the operation panel 43, the control device 20 outputs a shelf tilt release control signal to the rotating unit 17. The rotating unit 17, which has received the shelf tilt release control signal output from the control device 20, rotates the motor in the reverse direction. The driving force of the motor rotates the rotating device in the reverse direction, and the movable shelf 11, which is rotatably connected to the rotating device integrally, rotates in the reverse direction, and the movable shelf 11 returns to its horizontal position.

[0052] The configuration of the rotating unit 17 is not limited to this, and may be, for example, a rotating member and a rotating shaft without a motor. In this case, the cost for tilting the movable shelf 11 can be significantly reduced. When an operator at the landing 5 presses down on the front side (the landing 5 side) of the movable shelf 11, the movable shelf 11 rotates to a predetermined position via the rotating unit 17, and the baggage loaded on the movable shelf 11 can be moved in the direction of the loading / unloading opening 8.

[0053] In addition to tilting the shelf board via the pivoting portion 17, it is also possible to support the shelf board with two pairs of support rails 12 and tilt the shelf board downwards toward the loading / unloading opening 8. Specifically, two pairs of support rails 12 are installed on the left and right side walls 4, and during unloading, only the pair of lifting devices 30 on the loading / unloading opening 8 side is lowered, or only the pair of lifting devices 30 on the back side is raised, thereby tilting the shelf board downwards toward the loading / unloading opening 8. In this case, the control device 20 receives a shelf board tilt signal output from the operation panel 43 and outputs a lifting signal to either of the left and right pairs of lifting devices 30, thereby tilting the shelf board at a predetermined angle.

[0054] Next, an elevator shelf device 10 in which the movable shelf board 11 is a conveyor 18 will be described with reference to Fig. 6. Fig. 6 is a schematic diagram of the inside of an elevator car showing the general configuration of a dispensing mechanism of an elevator shelf device that is another example of an embodiment.

[0055] As shown in Fig. 6, the movable shelf 11 may be a conveyor 18 for moving cargo 51a loaded in the rear portion toward the loading / unloading opening 8 when unloading the cargo. The conveyor 18 may be, for example, a belt conveyor, but is not limited to this. The conveyor 18, like the movable shelf 11, is supported on the support rail 12 via the lifting device 30 so that it can be raised and lowered.

[0056] When the conveyor 18 is a belt conveyor, the conveyor 18 has rollers at both ends and includes a belt stretched over each roller. The conveyor 18 also includes a motor and a drive force transmission mechanism, and the drive force of the motor is transmitted to each roller via the drive force transmission mechanism to move the belt. The control device 20 drives the conveyor 18 during unloading to move the cargo 51a loaded on the conveyor 18, which is the movable shelf 11, toward the loading / unloading opening 8.

[0057] Specifically, when a conveyor drive operation signal is output from the operation panel 43, the control device 20 receives the signal and outputs a conveyor drive control signal to the conveyor 18. The conveyor 18 receives the conveyor drive control signal from the control device 20, rotates the motor, and sends the belt in the direction of the loading / unloading opening 8 via each roller. When the movable shelf 11 is the conveyor 18, there is no need to perform operations such as returning the dispensing mechanism to its initial position after unloading is complete.

[0058] Next, an elevator shelf device 10 in which movable shelves 11 are divided and each divided shelf moves up and down will be described with reference to Fig. 7. Fig. 7 is a schematic diagram of the inside of an elevator car showing the general configuration of an elevator shelf device that is another example of an embodiment.

[0059] As shown in Figure 7, elevator shelving unit 10 is equipped with movable shelves 11a and 11b that are divided into two in the depth direction of the shelf. Elevator shelving unit 10 is further equipped with support rails 12a on the rear side of left and right side walls 4 of car 1, and support rails 12b on the front side. Support rail 12a supports first movable shelf 11a so that it can be raised and lowered. Support rail 12b supports second movable shelf 11b so that it can be raised and lowered. When movable shelf 11 is divided, it is preferable that car floor 2 is also divided into two in the depth direction of the shelf (car floors 2a and 2b) like movable shelf 11, and that each is supported by support rails 12a and 12b so that it can be raised and lowered, to make it easier to load luggage.

[0060] The divided movable shelf plates 11a and 11b are used when the size of the bottom surface of the loaded luggage fits within the horizontal plane of the movable shelf plates 11a and 11b. For example, the case of mixed loading of luggage 61 (height L1), luggage 62 (height L2), luggage 63 (height L3), and luggage 64 (height L4) into basket 1 will be described. For example, let L1 < L2 < L3 < L4, and assume that L1 + L4 and L2 + L3 are each lower than the height of basket 1. The operator, for example, first places luggage 62 on the first movable shelf plate 11a located on the back side of the movable shelf plate 11. Next, the operation panel 43 is operated to raise the first movable shelf plate 11a to a predetermined height. To facilitate loading of luggage 63, the basket floor 2a located on the back side of the basket floor 2 is raised to the same height as the second movable shelf plate 11b in the stored state and the boarding area 5, and luggage 63 is placed on the basket floor 2a. Next, luggage 61 is placed on the second movable shelf plate 11b. Next, the second movable shelf plate 11b is raised, and the basket floor 2b located on the front side of the basket floor 2 is raised to the same height as the boarding area 5. Luggage 64 is placed on the basket floor 2b, and the loading of the luggage is completed.

[0061] When using the non-divided movable shelf plate 11 to load luggage 62 (height L2) and luggage 63 (height L3) on the back side of basket 1, since the movable shelf plate 11 stops at a position where luggage 63 (height L3) fits, it is not possible to load luggage 64 with a height of L4 on the front side of basket 1. By dividing the movable shelf plate 11, even if the first movable shelf plate 11a stops at a position where luggage 63 (height L3) fits, the second movable shelf plate 11b can stop at a position where luggage 64 (height L4) fits. From this, by the elevator interior shelf device 10 including the divided movable shelf plates 11a and 11b, it becomes possible to load a plurality of types of luggage with different heights into basket 1, and it becomes possible to transport more luggage at once.

[0062] As described above, by using the elevator shelf device 10 having the above configuration, the height of the shelf can be adjusted to accommodate various sizes (heights) of luggage, and space can be secured above luggage placed on the floor for loading new luggage. The space inside the car can be used effectively, increasing the amount of luggage that can be transported at one time, thereby improving the operating efficiency of the elevator.

[0063] The above embodiment can be modified as needed without impairing the purpose of the present invention. For example, it is possible to use the movable shelf 11 as a passenger floor and the car floor 2 as a luggage shelf. In this case, the object of transportation is not limited to luggage, and it becomes possible to transport many passengers at once, which leads to an expansion of the usage scenarios as a passenger / freight elevator.

[0064] When the divided movable shelves 11a and 11b are used as a passenger / freight elevator, it is possible to load luggage onto the movable shelf 11a and transport passengers onto the movable shelf 11b.

[0065] In another modification, for example, the movable shelf 11 may be stored on the ceiling 3 side and lowered when in use. In this case, the car floor 2 is set at the same height as the landing 5 in advance, so a mechanism for raising and lowering the car floor 2 is not required.

[0066] When the movable shelf 11 is used as a passenger floor board or when the movable shelf 11 is stored on the ceiling section 3 side, it is preferable to install lighting on the back side of the movable shelf 11, etc., from the viewpoint of ease of operation when loading luggage. [Explanation of symbols]

[0067] 1 car, 2 car floor, 3 ceiling, 4 side wall, 5 landing, 6 landing door, 7 car door, 8 loading / unloading door, 10 elevator shelf device, 11 movable shelf, 12 support rail, 15 sensor, 16 baggage discharge mechanism, 17 rotating part, 18 conveyor, 20 control device, 30 lifting device, 40 pusher, 41 rail, 43 operation panel

Claims

1. A shelf device applied to an elevator equipped with a car, a movable shelf plate provided in the car and supported by a support rail so as to be able to rise and fall; a lifting device that lifts and lowers the movable shelf; a control device for controlling the lifting device; An elevator shelf device comprising:

2. The movable shelf is placed on the floor when stored, 2. The elevator shelf system according to claim 1, wherein, in use, the control device raises the movable shelf from the floor.

3. The car is provided with a sensor for detecting when the cargo loaded on the movable shelf plate approaches a ceiling portion within a predetermined distance, The elevator shelf system according to claim 1, wherein the control device controls the raising and lowering of the movable shelf based on information from the sensor.

4. The movable shelf further includes a luggage ejection mechanism for ejecting luggage loaded on the rear portion of the movable shelf toward the loading / unloading opening when unloading the luggage, The elevator shelf device according to claim 1 , wherein the control device activates the baggage release mechanism when unloading.

5. 2. The elevator shelf device according to claim 1, wherein the control device tilts the movable shelf so that the movable shelf slopes downward from the rear of the car toward the loading / unloading opening in order to move the luggage loaded on the movable shelf toward the loading / unloading opening when unloading.

6. The movable shelf is a conveyor, 2. The elevator shelf system according to claim 1, wherein the control device drives the conveyor when unloading the luggage, in order to move the luggage loaded on the movable shelf toward the loading / unloading opening.

7. The movable shelf is divided into two in the depth direction of the shelf, The elevator shelf system according to claim 1 , further comprising support rails that support the first movable shelf plate and the second movable shelf plate so that they can be raised and lowered.

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