JP3188551B2 - Lifting device for packing object - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an apparatus for elevating and lowering an object to be packed, and more particularly to a method for lifting an object to be packed as a heavy object such as a copying machine, a facsimile, a printer, or furniture floated from a pallet by a buffer material. Also, the present invention relates to a device for elevating and lowering a packaged object with improved workability for lowering the product on a floor or the like.

[0002]

2. Description of the Related Art FIG. 26 is an explanatory view showing a state in which a packaged object is packed by a conventional method. In FIG. 26, a packaged object 101 which is a heavy object such as a copying machine, a facsimile, a printer, and furniture is transported. At the time, while being fixed on a pallet 111 or the like, the outside is packed in an outer box 112 such as a cardboard and transported by a truck or the like. In order to prevent the impact or vibration during transportation from damaging the heavy object to be packed 101 such as damaging, the cushioning material 109 is applied to the lower four corners of the object to be packed 101 so that the object is lifted off the pallet 111. keeping.

FIG. 27 is an exploded view for explaining the packing state of the conventional packaged object 101 in more detail.
1 is protected at each corner by applying a cushioning material 109 to each of the four upper and lower corners. The four cushioning materials 109a1 to 109d1 arranged below the packaged object 101 each have a projection (not shown) on the lower surface. The four lower cushioning materials 109a1 to 109d1 are fixed by screwing projections (not shown) into cushioning material fixing holes 113a provided in a base sheet 113 of an auxiliary member for fixing the outer box 112. . The base sheet 113 is fixed to the pallet 111 by using studs (not shown) or a sealing needle. The base sheet 113 is also made of cardboard. Upper four cushioning materials 109a2 to 109d2
Are merely placed on the four corners of the packaged object 101. The material of the cushioning material 109 is, for example, expanded polystyrene, expanded polyethylene, or those obtained by polymerizing these. Pallet 1 protected by cushioning material 109
The packaged object 101 placed on the base 11 is fixed by attaching joints 114 to fixing holes 112a and fixing holes 113b provided in an outer box 112 and a base sheet 113 each having an open lower surface. The outer box 112 can be easily removed by pulling the joint 114.

FIG. 28 is a cross-sectional view taken along the line AA of FIG. 26. A caster 115 is provided on the bottom surface of the package 101, and the worker can move the package 101 by pushing the package 101. At the time of packing, the object to be packed 101 is in a state of being floated from the upper surface of the base sheet 113 by the cushioning material 109, so that the casters 115 do not receive a shock or the like during transportation. The above-mentioned heavy object 101 such as a copier, a facsimile, a printer, and furniture is packed and the pallet 1
When the object 101 is loaded on a truck or the work of loading the object 101 stored in the warehouse on a truck can be easily performed by a forklift or the like which is permanently installed in the warehouse.
There is often no forklift at the place where 1 is dropped from the truck or the place where the package is unpacked, and in most cases, the packaged object on the truck or pallet is lowered to the ground or the floor by human power.

[0005] Further, a general concrete example of the packaged object 101 will be described. Console type office equipment weighs 15
As described above, it is 0 kg or more and is suspended from the pallet via the cushioning material. When unpacking the office equipment from the pallet, lift the office equipment off the pallet with several people, avoid the buffer material protruding from the top of the pallet, and move it parallel to the ground or floor surface. It is necessary not only to take a lot of labor, but also to carry out danger to the human body. In general, when the packaged object is 70 kg or more, it is impossible to lift it by two people. In addition, not only the lifting but also the parallel moving operation with the lifting requires considerable labor.
Since the package is heavy, there is a danger of serious injury even if a little care is taken. Therefore, as a method of lowering the office equipment with casters on the cushion material from the pallet, multiple casters are protruded from the upper surface of the pallet and detachably attached with screws etc. to make the caster float above the upper surface of the pallet. A method is known in which a caster is lowered onto a pallet by loosening a screw on a cushion material, and then office equipment is lowered from the pallet onto the ground or a floor surface (see Japanese Utility Model Laid-Open No. 2-40062).

[0006] However, office equipment can be easily lowered from the cushion material. However, when the office equipment is to be lowered from the pallet to the ground or a floor, it is necessary to lift or roll down with casters. There was a problem that shocked office equipment. Further, as a structure of a packing body for solving the above-mentioned problem, after removing a packing material, a leg of a caster incorporated in a product body of the packaged object is extended, and the product is lifted from the cushioning material. A technique has been proposed in which the material is removed, and then the product is lowered from the pallet while the feet are stretched, so that the product can be lifted with little human power.

[0007]

In the above-described conventional method for lifting and lowering a packaged object and a device for lifting the packaged object, there is often no forklift at the site where the packaged object is unpacked, so it is necessary to lift and lower it manually. As a result, there was a need for a lot of manpower and danger such as injury. Also,
Even when rolling down with casters, the office equipment is shocked, and the packaged product in which the lifting device is incorporated becomes large and expensive.

[0008]

SUMMARY OF THE INVENTION Therefore, the present invention is to solve such a problem. That is, heavy objects such as office equipment can be collected without using a large general-purpose machine such as a forklift or incorporating a large elevating device into the objects to be packed. Safe and secure
It is an object of the present invention to provide a small and inexpensive lifting device for a packaged object that can take a procedure of lowering the packaged object floated from a pallet by a cushioning material onto a pallet and then further lowering it on the ground or a floor surface.

[0009]

According to a first aspect of the present invention, there is provided a method for dropping an object to be packaged, which is floated on a pallet by a cushioning material, onto the pallet and then onto a floor or the like. In the apparatus for elevating and lowering the packaged object, lifting and lowering means which is detachably fixed to the outer surface of the packaged object and which moves the packaged object up and down, and the packaged object together with the lifting and lowering means at the ground end of the lifting and lowering means. Moving means for moving in the lateral direction, ground detecting means provided in the elevating means for detecting the presence or absence of grounding of the moving means, and a power source loaded on the packaged object or the elevating means, A power supply means for supplying power from the power source, and operating the lifting / lowering means and the moving means by operating signals from an operating device or a special remote operating device provided on the packaged object. It is characterized in that it is configured to obtain. According to a second aspect of the present invention, in the lifting device for the packaged object according to the first aspect, a cushioning material presence / absence detector for detecting the presence / absence of the cushioning material is provided on the packaged material, and the height of the cushioning material is provided in the lifting / lowering means. The present invention is characterized in that a cushioning material presence / absence detector for detecting the height direction is provided.

[0010]

The apparatus for elevating and lowering the object to be packed configured as described above is capable of lifting and lowering and moving the object to be packed by sequentially expanding and contracting or moving the lifting feet of the elevating means detachable from the object to be packed. Therefore, it is possible to recover the packaged object without lifting it by a large number of humans, and safely and securely operate it from the operation unit. It can be lowered on a surface or the like, and it is possible to provide a small and inexpensive lifting device for the packaged object.

[0011]

Next, embodiments of the present invention will be described with reference to the drawings. In addition, parts that do not appear in the drawings are denoted by reference numerals as needed, and are added to the description. FIG. 1 is a perspective view of an apparatus for elevating and lowering an object to be packed (elevating means) according to an embodiment of the present invention. In FIG. 2d) is detachably attached. Each lifting means 2 has a lifting foot 16
(16a-16d) and the lifting foot 17 (17a-17d)
Are arranged so as to penetrate one by one in the vertical direction, and mesh with a pinion gear 18 (not shown) and a pinion gear 19 (not shown) incorporated in each elevating means 2.
a to 27d) and 28 (28a to 28d)
6 and the elevating foot 17 are formed on the outer surfaces, respectively. The lower ends of the lifting feet 16a to 16d and the lifting feet 17a to 17d provided on the lifting means 2a to 2d are provided with moving means 3a to wheels 20a which constitute the moving means 3d. Wheels 20d and wheels 21a to 21d are attached, and casters 15 provided on the bottom surface of the packaged object 1,
Like a caster such as a commercially available swivel chair, it is configured to be rotatable 360 degrees left and right. On the upper surface of the packaged object 1, there is an operation unit of an operation device 6 including a key, a display unit, and the like. The elevating means 2a to elevating means 2d can be attached to and detached from the packaged object 1 by using attachment / detachment screws 22 (22a to 22d).

FIGS. 2 (a) and 2 (b) are longitudinal sectional views of a main part of the elevating device according to the present invention and a partial operation explanatory view of FIG. 2 (a), and show one of four elevating means 2b to 2d. The configuration of a certain elevating means 2a will be described. Note that the configuration of the other lifting / lowering means 2b to 2d is the same as that of the lifting / lowering means 2a. The lifting means 2a includes two lifting motors 2
3a, 24a, worm gears 25a, 26a integrated with the output shafts of the motors 23a, 24a, and rotatable by the side wall of the lifting / lowering means 2a so as to mesh with the worm gears 25a, 26a and receive the transmission of driving force. The pinion gears 18a, 19a supported and the rod-shaped lifting feet 16a, 17a supported by the packaged body 1 so as to be able to move up and down, respectively.
And rack gears 27a, 2 provided along the longitudinal direction on the outer peripheral surface of each of the lifting feet 16a, 17a for meshing with the pinion gears 18a, 19a to raise and lower each of the lifting feet 16a, 17a.
8a and the like. Lifting motor 23a and lifting motor 24
The driving force output from the gear a is transmitted to the lifting feet 16a and 17a via the worm gear 25a and the worm gear 26a, the pinion gear 18a and the pinion gear 19a, the rack gear 27a and the rack gear 28a, and the respective lifting feet are relatively moved up and down. The packaged object 1 can be moved up and down when the moving means 3a is grounded to the floor. The lifting motors 23a, 24a are provided corresponding to the lifting feet 16a, 17a of the lifting means 2a, and are fixed to the packaged object 1 by the motor bracket 29.
The lifting foot 16a and the lifting foot 17a are respectively cylindrical foot guides 30a and 31a provided inside the lifting means 2a.
(See FIGS. 3 and 4) and moves up and down.

Each of the lifting means 2a is provided with a respective lifting foot 16a,
The upper limit detecting means 37a, 3
8a, home position detecting means 39a, 40a are provided, and ground detecting means 41a, 42a (ground detecting section 8) are provided on the moving means 3a, 3b side located at the lower end.
a) is attached. Upper limit detecting means 37a, 38
a detects the elevation position of the lifting foot 16a and the lifting foot 17a, the home position detecting means 39a and 40a detect the home position, and the ground detecting means 41a and 42a are provided at the lower end of each lifting means 2. This is to detect whether the moving means 3 is in contact with the ground. As these detection sensors, for example, a transmission type photo interrupter or the like is used, and sectors 43 protruding from the lifting legs 16a, 17a, respectively.
The above sensors are operated by a, 44a, sectors 45a, 46a and ground detection members 47a, 48a provided on the moving means side. The bar-shaped ground detecting members 47a and 48a having bent upper ends are rotatably supported at the rotation centers 49a and 50a with respect to the support member 8b, and the lower ends thereof rotatably support the rollers 51a and 52a. Have been.

When the moving means 3 (3a) provided at the ground end (lower end) of each of the elevating means 2 is grounded, the lower ends of the ground detecting members 47a and 48a are pressed against the floor surface F. In order to be urged in the counterclockwise direction, the upper end thereof enters the ground detecting means 41a and 42a to be in the detection state. When the moving means 3 provided at the grounding end of each of the elevating means 2 is in the air because the packaged object 1 is lifted off the floor F, the grounding detecting members 47a, 48a
Is rotated clockwise by its own weight.
As shown in (b), it rotates until it comes into contact with the stoppers 53a and 54a. At this time, since the contact detecting members 47a and 48a are disengaged from the contact detecting devices 41a and 42a,
It is determined that each of the moving means 3 provided at the grounding end is in the air. The stopper 53a and the stopper 54a are arranged such that when the contact detecting member 47a and the contact detecting member 48a are in the air, the lower portion from the rotation centers 49a and 50a does not become perpendicular to the floor surface F, and This is to maintain the angle θ, so that the ground detection members 47a and 48a can rotate between FIGS. 2 (a) and 2 (b).

When unloading at the place where the package 1 is to be unloaded at the time of shipment, there is often no power supply.
In the key operation from the operating device 6 of the packaged object 1 shown in (1), the elevating motors 23a and 24a of the elevating means 2 do not move. In order to cope with such a problem, a power source (battery) 4 is mounted on each lifting / lowering means 2. Further, the power source (battery) 4 may be loaded on the package 1. When a power source (battery) 4 is loaded on the package 1, power is supplied to the operating device 6, the control device, and the like of the package 1 by a power supply unit 5 (cable), and each of the lifting / lowering units 2 is supplied. Also, the power is supplied by the power supply means 5. or,
When a power source (battery) 4 is loaded on each lifting / lowering unit 2, power is supplied to the packaged object 1 by the power supply unit 5. This method provides various conveniences because it is not necessary to incorporate the power source (battery) 4 used only for unloading into the package 1.

FIG. 3 is a sectional view taken along the line BB of FIG. 2 (a), and FIG. 4 is a perspective view of a main part of the elevating device. In FIGS. 3 and 4, the elevating legs 16a and 17a are connected to the elevating means 2a. The foot guides 30a and 31a are arranged so as to penetrate the inside in the up-down direction, and are movably supported in the up-down direction by the inner circumferences. An opening 33a is provided on the outer peripheral surface of the hollow cylindrical foot guide 31a, and a rack gear 28a provided integrally with the lifting foot 17a is arranged so as to be exposed from the opening 33a. In order not to shift its circumferential position,
The groove 34a of the elevating foot 17a is fitted to the guide projection 36a to inhibit rotation and relatively move vertically. Other foot guides 30a to 30d, 31b to 3
1d also has the same configuration as described above, and a description thereof will be omitted.

The elevating means 2 comprises an attaching / detaching portion 55 shown in FIG. 5 which is detachably attached to an attaching / detaching member 59 shown in FIG. That is, FIG.
FIG. 3 is a perspective view showing the configuration of another main part (removable part) of the elevating device according to the present invention.
5 (55a) is a hole 56a for a detachable screw, a detachable guide groove 5
7a, a lifting / lowering means side connector 66a, a cushion 58a and the like. The attachment / detachment portion 55a is a surface attached to the side surface of the packaged object 1. FIG. 6 is a perspective view showing another configuration of the main part of the lifting device. A detachable member 59 (59a) constituting a part of the package 1 is provided on the bottom surface (1a) of the package 1. Since a large load is applied to this member, it is necessary to increase its durability, and the member is made of a metal material. Packed object 1
The upper surface of the attachment / detachment member 59a is attached to and fixed to the bottom surface by screws or welding. The detachable member 59a is a detachable guide protrusion 6.
0a, lower guide 61a, detachable screw hole 62a, screw portion 6
3a, a packaged body side connector 64a and the like.

FIG. 7 is a view showing a mounting state of the attaching / detaching portion 55 and the attaching / detaching member 59 constituting the elevating device. When each elevating means 2 is attached to the to-be-packaged body 1, first, on the bottom surface 1a of the to-be-packaged body 1. Detachable member 59a fixed by screwing or welding, etc.
The detachable guide groove 5 of the detachable portion 55
7a (see FIG. 5) is slide-inserted so as to be fitted. As a result, the detachable guide groove 57a and the detachable guide protrusion 6
Oa maintains the positional accuracy at the time of joining, and the detachable screw hole 56a and the detachable hole 62a and the like enter a communicating state. In this state, the attachment / detachment screw 22a is inserted into the attachment / detachment screw hole 56a and tightened, whereby the attachment / detachment means 2 is fixed to the screw portion 63a and the attachment of the elevating means 2 is completed. The cushion 58a is provided on a surface of each of the lifting / lowering means 2 (detachable portion 55) in contact with the exterior part of the package 1 so that the package 1 is not damaged. Then, each of the fixed elevating means 2 is operated by using the operating device 6 or the like of the packaged object 1 (not shown). The above description also applies to other lifting means 2b to 2d other than the lifting means 2a.

FIG. 8 shows another essential part of the lifting device (connector 66).
9A is an enlarged perspective view showing the configuration of FIG. 8A, and FIG. 9 is an enlarged cross-sectional view showing the configuration of another essential part of the lifting device. In FIGS.
6a is disposed at a position where it naturally fits when the attaching / detaching portion 55 is joined to the attaching / detaching member 59. However, since it is difficult to completely match the positions of the packaged object side connector 64a and the lifting / lowering means side connector 66a, it is configured such that if the plugs are inserted roughly, they will be naturally connected. That is, the male electrode 67a of the lifting / lowering means side connector 66a
A copper alloy plate having strong elasticity is formed into a shape as shown in the figure, and has a swelling shape as shown in the figure. As the other female electrode 68a, a copper alloy plate having high elasticity is used. The opening amount of the inlet is made larger than the width in the vertical direction of each male electrode 67a and becomes narrower toward the back. Has a shape that fits while elastically deforming. The outside of the female electrode 68a is protected by an insulating female electrode protection member 69a. The female electrode protection member 69a is made of an elastic material such as rubber, and when the male electrode 67a is initially inserted, the female electrode 68a
Even when it is not inserted into the central part, the male electrode 67a is guided to the central part by elastic deformation to connect both connectors. Note that both electrodes 67
a and 68a are connected to the power supply means 5 as a matter of course.

Hereinafter, a method of lowering the packaged object 1 from the pallet 11 will be described. FIGS. 10 to 15 are diagrams for explaining a state change of a main part of the elevating device of the present invention. The packaged object 1 in a state where the elevating means 2 (2a to 2d) is attached to each of four side surfaces is shown in FIG. The state where it was packed by the pallet 11 and the outer box 12 is shown. Packed object 1 and elevating means 2
Are kept floating from the pallet 11 by being placed on the cushioning material 9 at the four lower corners. FIG. 11 shows a state immediately before the outer box 12 is removed.
In the above, the lifting feet 16a to 16d and the lifting feet 17a to 17d of the lifting means 2 are all extended and protruded downward, so that the grounding end of each foot is grounded on the base sheet 13 on the pallet 11, and further raised and lowered. After the feet 16a to 16d and the elevating feet 17a to 17d are extended to separate (up) the package 1 from the cushioning material 9, the cushioning material 9 is removed, so that the package 1 moves on the pallet 11. The means 3 can move freely. In the embodiment, the lifting / lowering means 2 is located at the center of each of the front, rear, left and right sides of the packaged object 1.
The lifting feet 16a to 16d and the lifting feet 17
a to 17d are provided two by two for each elevating means, but this is merely an example and the elevating means 2 and the elevating
When the packaged object 1 is lowered from the pallet 11 by increasing the number of the pallets 11 and 17 or by increasing the distance between the legs 16 and 17 for raising and lowering, the balance is not lost.

FIG. 12 is a view showing a first stage of an operation for lowering the packaged object from the pallet, and two lifting feet 16a and 17a positioned in the direction of lowering the packaged object 1 are placed on the floor surface F.
It is in a state where it is about to be grounded. Lifting means 2b
And the lifting / lowering means 2d are located on the front side and the rear side at the same position when viewed from the front in the figure. As will be described in detail later, the operation procedure for lowering is to extend the left and right lifting feet in order from the right side of the drawing, and to extend the front and rear lifting and lowering feet 16 and 17 in order. It is assumed that two are operated simultaneously. That is, the feet 16b and 17d are simultaneously operated as a pair, and then the feet 17b and 16d are simultaneously operated as a pair. In FIG. 12, immediately after removing the cushioning material 9 shown in FIG.
To 23d and 24a to 24d to operate each foot 1
Keep 6 and 17 short. Subsequently, each of the lifting / lowering means 2a-2
By means of the moving means 3a to 3d provided for d, the object to be packed 1 is manually pushed and moved to a position where the elevating foot 16a and the elevating foot 17a of the elevating means 2a protrude from the edge of the pallet 11. At this time, the packaged object 1 has the wheels 2 of the lifting / lowering means 2b to 2d other than the lifting / lowering means 2a protruding into the air.
It is stably mounted on the pallet 11 by the wheels 0b to 20d, the wheels 21b to 21d, and the casters 15 of the packaged object 1. The lifting feet 16a and 17a that have detached from the pallet
By operating the motors 23a and 24a and simultaneously extending downward as shown in the figure, the wheels at the lower end are installed on the floor F.

FIG. 13 shows a state in which, following the lifting feet 16a, 17a, two lifting feet 16b and 17d in the direction of lowering the packaged object 1 are grounded. FIG.
After the state of 3, the packaged object 1 is further moved by the moving means 3a to 3d, and the two legs 17b and 16d are grounded. Further, the packaged object 1 is moved from the moving means 3a to 3d.
By moving in the same direction using 3d, all the casters 15 of the packaged object 1 are detached from the pallet 11, and the state is shifted to a state in which only the lifting / lowering means 2c is placed on the pallet 11. FIG. 15 further shows moving means 3a-3.
This shows a state in which the object 1 is completely unloaded from the pallet 11 by moving the object 1 in the unloading direction. The two lifting feet 16c of the last lifting means 2c on the pallet 11 and the wheels 20c and 21c of the lifting feet 17c are floating in the air. Even in such a state, it is not difficult to understand that there is no danger that the packaged object 1 will lose its balance and fall down because the other lifting feet have landed. As the handling of the two lifting feet 16c and 17c of the last lifting means 2c, they are once extended and grounded, and then all the lifting feet are contracted to lower the packaged object 1, or Lifting means 2a, 2
b, 2d, the feet 16a, 16b, 16d, and the feet 16a, 17b,
It is possible to arbitrarily select whether to drop the 17c on the ground according to the situation at the place.

The operation section (not shown) may be arranged in a hidden door or the like without exposing the operation section dedicated to unloading on the operation device 6 of the packaged object 1, or an operation key. If a liquid crystal touch panel is used, a screen for a loading / unloading mode is created, and a switch for selecting the lifting feet 16 and the lifting feet 17 of the lifting means 2 is operated. May be. However, the lifting feet 16 and 17 are lowered every time the wheels 20 and 21 of the lifting feet 16 and 17 of the lifting means 2 move out of the pallet 11 so that the packaged object 1 is lowered. If the switch is operated while visually checking how far the lifting foot 17 should be extended, the lengths of the lifting foot 16 and the lifting foot 17 cannot be accurately aligned. Therefore, the contact detecting means 41a to 41d and the contact detecting means 42 described with reference to FIGS.
a to 42d are used. That is, by operating the operation touching switch, the lifting feet 16 and 1 to be lowered are required.
7 are connected to the ground detecting means 41a to 41d and the ground detecting means 42.
The elevating motor 23 is extended so that a-42d is turned on.
a to 23d and the elevating motors 24a to 24d are controlled by a control unit (not shown).

It is conceivable that when operating the up and down movement of the lifting feet 16 and 17, the operation switches of the lifting feet 16 and 17 which the user does not want to extend may be erroneously operated. For example,
In the state of FIG. 13, if the switch for extending the lifting feet 16c and 17c of the lifting means 2c is accidentally turned on, the packaged object 1 is broken or the lifting motors 23c and 24c of the lifting means 2c are overloaded. May be damaged. Further, the lifting feet 16b and 17 of the lifting means 2b and 2d
If the lifting legs 17b and 16d are extended when d is not in contact with the ground, the packaged object 1 may fall down, or the lifting motors 23d and 24b of each lifting means 2b may be overloaded and damaged. is there. The same applies to the case where each lifting leg is shortened.

In order to prevent such a situation, when all the lifting / lowering means 2 are in the ground contact state, all the lifting / lowering feet 16 and 17 simultaneously expand and contract (when the cushioning material 9 is removed).
Other than the above, it is necessary to set a control program so that the extension order of each of the lifting and lowering means of the lifting and lowering means 2b to 2d other than the lifting and lowering means 2a which is first extended and grounded on the floor is set in advance. There is. In other words, for example, immediately after the lifting feet 16a, 17a of one lifting means 2a extend and touch the floor, the lifting feet 16b, 17d of the lifting means 2b, 2d on the adjacent side face are used for lifting. Keep your feet from stretching. Further, only when the contact detecting means 41a to 41d and the contact detecting means 42a to 42d are off, that is, only when the contact detecting means is in the non-contact state, these are lifted from the pallet 11; To be able to expand and contract at the same time. It is more effective if an alarm is sounded when the lifting foot 16 or the lifting foot 17 is operated alone in the ground contact state. Even if a program for preventing tilting as described above is not set, a serious accident can be prevented by providing an emergency operation stop switch at an appropriate position in the device.

FIG. 16 is a flowchart for explaining the operation of the elevating means, which is an operation flow when the operation switches of the elevating feet 16b and 17d of the second elevating means 2b and the fourth elevating means 2d are pressed. is there. Here, one example of the first to fourth lifting means 2a to 2d, that is, the second lifting means 2b
In the following, the other lifting means 2a, 2c,
The situation is the same for 2d. First, the operation switches of the lifting foot 16b of the second lifting means 2b and the lifting foot 17d of the fourth lifting means 2d are turned on. First lifting means 2
The ground detection means 41a and 42a of a are off (non-ground state)
12 means that both the lifting feet 16a and 17a are not in contact with the floor in FIG. 12, so that the lifting motors 23b and 24d of the second and fourth lifting means 2b and 2d are used.
Does not move, sounds an alarm and ends (steps 1, 2,
9, 10).

In step 1, when the contact detecting means 41a and the contact detecting means 42a are turned on, the lifting feet 16a, 1
7a are both in contact with the floor, it is checked in step 3 whether the contact detection means 41b of the second lifting means 2b and the contact detection means 42d of the fourth lifting means 2d are on. Is the lifting foot 16 of both lifting means 2b, 2d
b, 17d are still grounded on the pallet 11, so that the elevating motor 23b and the elevating motor 2
Do not move 4d, sound an alarm and end. If the contact detecting means 41b and the contact detecting means 42d are off in step 3, the process proceeds to step 4, and the contact detecting means 42b and 41d
Is turned on (whether the lifting feet 17b and 16d are on the pallet). When the ground detection means 42b and 41d are off in step 4, the lifting motor 2
3b and the elevating motor 24d do not move, sound an alarm and end. When the contact detecting means 42b and 41d are turned on in step 4, the ascending and descending feet 17b and 16d are in contact with the pallet on the pallet.
And whether the ground detection means 42c is on. When the touchdown detecting means 41c and the touchdown detecting means 42c are turned off, the lifting motor 23b and the lifting motor 24d do not move, and an alarm is sounded.

In step 5, when the touchdown detecting means 41c and the touchdown detecting means 42c are on, the lifting feet 16c, 17
In order to mean that c is grounded on the pallet, the lifting motor 23b and the lifting motor 24d are driven to extend the lifting feet 16b and 17d, and are driven until the ground detecting means 41b and the ground detecting means 42d are turned on. After that, the lift motor 23b and the lift motor 24d are stopped, and the process ends (steps 6, 7, 8). This is the state shown in FIG. The control unit (not shown) includes upper limit detection units 37a to 37d.
And upper limit detecting means 38a to 38d, home position detecting means 39a to 39d, and home position detecting means 40a.
Of course, the extension / retraction state of each elevating foot is determined based on detection signals from the grounding detecting means 41a to 41d and the grounding detecting means 42a to 42d.

FIG. 17 is a perspective view showing the overall structure of a lifting device according to another embodiment of the present invention. In this embodiment, the operation of the lifting means 2a to 2d is performed not by the operating device 6 of the packaged object 1. An operation signal is transmitted from an antenna 70 of a remote controller 7 which is remotely operated by radio or the like, and a signal is received by each antenna 71 of the lifting / lowering means 2a to 2d, and each of the lifting feet 16a to 16d is received.
And the operation of each of the lifting feet 17a to 17d. In this case, there is no current or signal exchange between the packaged object 1 and each of the lifting / lowering means 2a to 2d.
a to 57d, the detachable guide protrusions 60a to 60d, the lower guides 61a to 61d, the detachable screw holes 56a to 56d, and the detachable screw holes 62a to 62d, so that the configuration can be simplified. Attachment / detachment members 59a-59 for mounting the commercially available elevating means 2a-2d are mounted on the packaged object 1 side.
It can be easily manufactured simply by attaching d.

FIG. 18 shows an example of the structure of the moving means in the embodiment of FIG. 17. The moving means 3a to 3d provided for each of the elevating means 2a to 2d include wheels 20a to 20d, wheels 21a to 21d, and wheels 21a to 21d. Motors 72a to 72d, wheel motors 73a to 73d, wheel motor brackets 74a to 7
4d, wheel motor brackets 75a to 75d, worm gears 76a to 76d and worm gears 77a to 77d,
It comprises a wheel unit 88 formed by gears 78a to 78d and gears 79a to 79d. The above wheel motor 7
The power of a power source (battery, FIG. 2A) 4 in the lifting / lowering means 2a to 2d is supplied to the wheels 2a to 72d and the wheel motors 73a to 73d by the power supply means 5. The driving force of each of the wheel motors 72a to 72d and the wheel motors 73a to 73d is equal to the worm gear 76a to 76d and the worm gear 77.
a to 77d, each gear 78a to 78d and gear 79a to 79
d, wheels 21a to 20d and wheels 21a to 2
1d.

FIG. 19 is a diagram showing a circuit configuration for transmission and reception in the embodiment of FIG. 17. A transmitter 80 of the remote controller 7 modulates a signal (low frequency: called a baseband signal) 81 to be transmitted. The signal is modulated by the section 82 and sent to the high frequency section 83. Here, a high frequency (carrier) is skipped from the antenna 70. The receiver 84 receives the carrier wave from the antenna 71 at the high frequency section 85, amplifies the carrier wave, and returns it to the original low frequency (baseband signal) at the demodulation section 86.
And the operation of the lifting / lowering means 2a to 2d is performed. The above-mentioned transmitter 80 and receiver 84 are known ones which are not different from the generally marketed weak electric radios. When the operation of the lifting / lowering means 2a to 2d is performed using the operating device 6 of the package 1, the position of the operating device 6 of the package 1 is too high when on the pallet 11, and the operation is difficult. There is a problem, but if you operate the wheel unit 88 with the remote controller 7, you can operate it with a radio controlled toy car,
The heavy object 1 can be easily unloaded from the pallet 11.

FIG. 20 is a block diagram showing a schematic configuration of a control unit for operating the lifting / lowering device and a controlled object. In the case of remotely operating the lifting / lowering means 2a to 2d, only the lifting / lowering means control unit 87 needs to be provided. good. The control unit 89 of the operation device 6 of the packaged object 1 has a sequence controller 90 and an operation controller 91. These controllers are each composed of a CPU, a peripheral LSI, a driver, and the like. To control the synchronization. The operation controller 91 has an operation switch 9
3 to the sequence controller 90, and controls the display 94 to display the set mode and operation state via the operation switch 93. The elevating means controller 92 includes upper limit detecting means 37a to 37d and upper limit detecting means 38a to 38d for controlling the raising and lowering of the respective lifting feet 16a to 16d of the lifting means 2a to 2d and the respective lifting feet 17a to 17d, and detecting the home position. Means 39a
To 39d and home position detecting means 40a to 40d,
Ground detection means 41a-41d and ground detection means 42a-4
2d, and the elevating motors 23a to 23d and the elevating motors 24a to 24
d, wheel motors 72a-72d and wheel motors 73a-7
3 is performed to control the operation timing. In the above description, both the operation from the operation device 6 of the packaged object 1 and the operation from the remote operation device 7 are all manual operations, but they can be automated. However, in this case,
Also when operating from the remote controller 7, it is necessary to exchange signals between the packaged object 1 and the lifting / lowering means 2a to 2d.

FIG. 21 is an explanatory view of the structure of a main part of another embodiment of the present invention. The packaged object 1 is provided with a buffer material presence / absence detector 10a for detecting the presence / absence of the buffer material 9, and each lifting means 2
In (2a to 2d), a buffer material presence / absence detector 10b for detecting the presence / absence of the buffer material 9 in the height direction is provided. The number of the buffer material presence detectors 10a may be the same as the number of the buffer materials 9, and at least one of the height direction presence / absence detection means 10b may be provided. As the buffer material presence / absence detectors 10a and 10b, reflection type photo interrupters are used. When the reflection sheet 95 is attached to the cushioning material 9 and the reflected light returns to the cushioning material presence / absence detectors 10a and 10b, it is in the ON state. When the height of the packaged object 1 exceeds a certain value, the cushioning material presence / absence detector 10b for detecting the presence / absence of the cushioning material 9 in the height direction comes off the reflection sheet 95 and is turned off. At this time, the lifting / lowering motors 23a to 23d and the lifting / lowering motors 24a to 24d (not shown) are stopped, and the cushioning material 9 may be removed between them. When four cushioning materials 9 are removed and lost, a cushioning material presence / absence detector 10 for detecting the presence or absence of the cushioning material 9
a, 10b are turned off, and the ground detecting means 41a to 41a-4
1d and the lifting / lowering motors 23a to 23d and the lifting / lowering motor 2 (not shown) until the ground detection means 42a to 42d turn on.
4a to 24d are rotated. As described above, the operation device 6 of the packaged object 1 is provided with the detachment mode switch (not shown) of the cushioning material 9 for removing the cushioning material 9, so that the switch 9 is operated only once to operate the switch. Can be removed.

FIG. 22 is a flow chart for explaining the operation of each part when the cushioning material is removed. When the mode switch for removing the cushioning material 9 is pressed, the elevating motors 23a to 23a are moved.
d and the lifting / lowering motors 24a to 24d all rotate forward, and the packaged object 1 rises. After confirming that the cushioning member presence / absence detector 10a for detecting the presence / absence of the cushioning member 9 in the height direction has come off the reflection sheet 95 and is in the off state, the lifting motors 23a to 23e
d and the lifting motors 24a to 24d are stopped (steps 20 to 23). At this time, after it is confirmed that the operator removes the cushioning material 9 and all the cushioning material presence / absence detectors 10a and 10b are turned off, the control unit controls the elevating motors 23a to 23d.
And the lift motors 24a to 24d are rotated in reverse. Until it is confirmed that the ground detecting means 41a to 41d and the ground detecting means 42a to 42d are turned on, the lifting motors 23a to 23d
3d and the elevating motors 24a to 24d continue to rotate in the reverse direction, and then stop and end.

FIGS. 23, 24 and 25 (a) and (b) are flow charts for explaining the operation of the embodiment of FIG. 17, which is provided in the operating device 6 or the remote operating device 7 of the packaged object 1. When the unload mode switch of the packaged object 1 is turned on,
The control unit includes the touchdown detecting means 41a to 41d and the touchdown detecting means 4
After confirming that the wheels 2a to 42d are on, the wheel motor 7 of the wheel unit 88, which is the moving means 3a to 3d, is used.
2a to 72d and the wheel motors 73a to 73d are driven,
The packaged object 1 is moved in the unloading direction. When only the first lifting / lowering means 2a jumps out of the edge of the pallet 11 and the ground detection means 41a and the ground detection means 42a are turned off, the wheel motors 72a to 72d and the wheel motor 73a are turned off.
-D stop (steps 29-33). In step 34, the contact detecting means 41a and the contact detecting means 4
After confirming that 2a is turned off, the lifting motor 23a and the lifting motor 24a are rotated forward to
6a and the lifting foot 17a are extended,
a and the grounding detecting means 42a are turned on,
and the elevating motor 24a stops (see FIG. 12).

At this time, due to circumstances such as a recess on the floor,
If the elevating foot 16a and the elevating foot 17a do not touch the ground after a predetermined time that is an average time required for touchdown,
When the upper limit detecting means 37a is turned on, the normal rotation of the motor is stopped. The lift motor 23a and the lift motor 24a
Is turned, the device is broken (steps 35 and 3).
6, 40). After confirming that the ground contact detecting means 41a to 41d and the ground contact detecting means 42a to 42d are turned on, the wheel motors 72a to 72d and the wheel motors 73a to 73d are turned on.
3d, the lifting foot 16b and the lifting foot 17d jump out of the pallet 11 and the grounding detecting means 41b and the grounding detecting means 42d are turned off, and the wheel motors 72a to 72d are turned off.
And the wheel motors 72a to 72d stop (see FIG. 13).
(Steps 37 to 43).

Subsequently, at step 44, the contact detecting means 41
b, 42d are off and the lifting feet 16b, 17d are in the air, and then the lifting motors 23b, 24
By rotating d in the forward direction, the lifting feet 16b and 17d are started to descend (step 45). After confirming that the upper limit detecting means 37b and 38d are off, the ground detecting means 41b and 4
When 2d is turned on, the lifting motors 23b and 24d are stopped, and the lowering of the lifting feet 16b and 17d is stopped (steps 46 to 48). At this point, the lifting foot 16
It turns out that b and 17d were correctly grounded on the floor F. In step 49, all of the contact detecting means 41, 4
When 2 is ON, turn on the wheel motors 72 and 73
When the grounding detecting means 42b and 41d for detecting the grounding of the following lifting feet 17b and 16d are turned on, the wheel motors 72 and 73 are stopped. However, when the ground detecting means 42b, 41d is turned off, it means that the lifting feet 17b, 16d are in the air, and the lifting motors 24b, 23d are rotated forward to lower the lifting feet 17b, 16d ( Steps 50-55). When the ground contact detecting means 42b and 41d for the lifting feet 17b and 16d are turned on, the lifting motors 24b and 23d are stopped, and the wheel motor 72,
73 is rotated (steps 56 to 64).

Finally, if it is confirmed in step 61 that the last lifting foot 16c, 17c is in the air, the wheel motors 72, 73 are stopped and all the lifting motors are rotated in reverse, and (Steps 61 to 68). That is, when the state of FIG. 15 is reached, the lifting legs 16 and 17 that are already grounded are rotated by the corresponding lifting motor 23 and lifting motor 24 in the reverse direction.
The object 1 to be packed is lowered, and all the lifting feet 16 and 17 and the casters 15 of the object to be packed 1 are grounded on the floor. When it is confirmed that all the lifting feet 16 and 17 are in contact with the ground, the lifting motors 23a to 23d and the lifting motors 24a to 24d are rotated in reverse, and the home position detecting means 39a to 39d are rotated.
When 39d and the home position detecting means 40a to 40d have detected, the elevating motors 23a to 23d and the elevating motors 24a to 24d are stopped to end the operation (steps 65 to 68). The reason why the lifting feet 16 and 17 are stopped at the home position above the grounding state is because it is convenient when removing the lifting means 2 or when attaching the lifting means 2 to the packaged object 1. is there. This is because if the lifting feet 16 and 17 are in contact with the ground, they are difficult to remove because they are under a load when they are removed, and they are difficult to attach when they are attached because there is no gap below.

[0039]

Since the present invention is constructed as described above, the lifting feet of the lifting means which can be attached to and detached from the package are sequentially extended or contracted or moved so that the package is lifted, lowered or moved. The packing material can be collected without lifting by a large number of humans, and can be safely and securely operated by the operation unit. Alternatively, a compact and inexpensive lifting device for a packaged object that can be dropped on a floor or the like can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a lifting device according to an embodiment of the present invention.

2 (a) and 2 (b) are a cross-sectional view of a main part of an elevating device according to an embodiment of the present invention and an explanatory view of a state where the main part in FIG. 2 (a) changes.

FIG. 3 is a sectional view taken along line BB of FIG. 2 (a).

FIG. 4 is a perspective view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 5 is a perspective view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 6 is a perspective view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 7 is a front view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 8 is an enlarged perspective view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 9 is an enlarged sectional view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 10 is an explanatory diagram of a state change of a main part of the lifting device according to the embodiment of the present invention.

FIG. 11 is an explanatory diagram of another state change of the main part of the lifting device according to the embodiment of the present invention.

FIG. 12 is an explanatory diagram of another state change of the main part of the lifting device according to the embodiment of the present invention.

FIG. 13 is an explanatory diagram of another state change of the main part of the lifting device according to the embodiment of the present invention.

FIG. 14 is an explanatory diagram of another state change of the main part of the lifting device according to the embodiment of the present invention.

FIG. 15 is an explanatory diagram of another state change of the main part of the lifting device according to the embodiment of the present invention.

FIG. 16 is an operation flowchart of a main part of the lifting device according to the embodiment of the present invention.

FIG. 17 is a perspective view of a lifting device according to another embodiment of the present invention.

FIG. 18 is an enlarged perspective view of another main part of the lifting device according to the embodiment of the present invention.

FIG. 19 is a block diagram illustrating another main part of the elevating device according to the embodiment of the present invention.

FIG. 20 is a block diagram illustrating another main part of the elevating device according to the embodiment of the present invention.

FIG. 21 is a front view of another state of another main part of the elevating device according to the embodiment of the present invention.

FIG. 22 is another operation flowchart of another main part of the elevating device according to the embodiment of the present invention.

FIG. 23 is another operation flowchart of another main part of the elevating device according to the embodiment of the present invention.

FIG. 24 is another operation flowchart of another main part of the elevating device according to the embodiment of the present invention.

FIGS. 25 (a) and 25 (b) are other operation flowcharts of other main parts of the elevating device according to the embodiment of the present invention.

FIG. 26 is a perspective view illustrating a packing state of a body to be packed according to the related art.

FIG. 27 is an exploded view for explaining a packing state of a body to be packed according to the related art.

FIG. 28 is a sectional view taken along line AA of FIG. 26;

[Description of Signs] 1 ... Packed object, 2a-d ... Elevating means, 3a-d
... Transportation means, 4 ... Power source (battery), 5 ...
Power supply means, 6 operating device, 7 remote control device, 8a to d ground contact detecting means, 9 buffer material, 10 buffer material presence detector, 11 ..Pallets, 12 ... outer boxes, 12a ... fixing holes, 13 ...
・ Base sheet, 13a: fixing hole, 13b: fixing hole, 14: joint, 15: caster, 1
6a-d ... feet for elevating, 17a-d ... feet for elevating,
18a-d: Pinion, 19a-d: Pinion, 20a-d: Wheel, 21a-d: Wheel, 2
2a-d: attachment / detachment screws, 23a-d, elevating motors, 24a-d, elevating motors, 25a-d, worm gears, 26a-d, worm gears, 27a-
d: rack, 28a-d: rack, 29 ...
Motor bracket, 30a-d ... foot guide, 31a
To d: foot guide, 32a to d: opening, 33a
... d ... opening, 34a-d ... groove, 35a-d
..Guide protrusions, 36a-d ... Guide protrusions, 37a
... d: upper limit detecting means, 38a-d: upper limit detecting means, 39a-d: home position detecting means, 40
ad: home position detecting means, 41a-d
..Ground detection means, 42a-d ... Ground detection means, 4
3a-d ... sector, 44a-d ... sector, 45
ad: sector, 46a-d: sector, 47a
-D: Member for grounding detection means, 48a-d: Member for grounding detection means, 49a-d: Center of rotation, 50a-
d: rotation center, 51a-d: roller, 52a-d
... rollers, 53a-d ... stoppers, 54a-d
..Stoppers, 55a-d ... detachable parts, 56a-d
..Screw holes for attachment / detachment, 57a-d: attachment / detachment guide grooves, 5
8a-d: cushion, 59a-d: detachable member, 60a-d: detachable guide projection, 61a-d ...
・ Lower guide, 62a-d ... holes for detachable screws, 63a-
d: screw portion, 64a-d: packaged object side connector, 65a-d: groove, 66a-d: elevating means side connector, 67a-d: male electrode, 68a-d.・
-Female electrode, 69a-d ... female electrode protection member, 70
... Antenna, 71 ... Antenna, 72a-d ...
-Wheel motors 73a-d ... wheel motors 74a-
d: Wheel motor bracket, 75a-d: Wheel motor bracket, 76a-d: Worm gear, 7
7a-d ... worm gear, 78a-d ... gear,
79a-d ... gear, 80 ... transmitter, 81 ...
Signal, 82: modulation section, 83: high-frequency section, 84
..Receiver, 85, high frequency section, 86, demodulation section
87 ... elevation means control unit, 88a-d ... wheel unit, 89 ... packed object control unit, 90 ... sequence controller, 91 ... operation controller, 92
... Elevating means controller, 93 ... Operation switch, 94 ... Display, 95 ... Reflection sheet, 101
... Packed object, 109a1-d2 ... Buffer material, 11
1 ... pallet, 112 ... outer box, 112a ...
・ Fixing hole, 113 ・ ・ ・ Base sheet, 113a ・ ・ ・
Fixing hole, 113b: fixing hole, 114: joint, 115: caster.

Claims (2)

(57) [Claims] 1. A lifting device for object to be packaged for Kudasu on the further floor surface or the like from the object to be packaged in a state in which floated from the pallet by cushioning material drop-off onto the pallet, the object to be packaged and lifting means for lifting moving該被pack is detachably secured to the outer surface of the body, and moving means for moving the object to be packaged in the lateral direction together with the elevating means there to the ground end of the elevating means, the mobile To detect the presence or absence of grounding means
Of, a ground detection means provided in said elevating means, a power source that is stacked on the object to be packaged or elevating means, and a power supply means for supplying electric power from said power source, the object to be packaged operation signal from the operation unit or special remote controller or the like provided in the lifting device of the object to be packaged, characterized by being configured such that may operate the lifting means and the moving means or the like. 2. An apparatus for elevating and lowering an object to be packed according to claim 1, further comprising a buffer material presence / absence detector for detecting the presence / absence of said buffer material on said body to be packed, and wherein said elevating means is provided in a height direction of said buffer material. A device for elevating and lowering an object to be packed, comprising a buffer material presence / absence detector for detecting the presence of a buffer.