JPH0522178U - Lifting device for cargo - Google Patents

Abstract

(57) [Abstract] [Purpose] A large lift table for loading and unloading large heavy loads is provided, and when loading and unloading small, light small loads into and out of the luggage compartment, the rear door can be opened and closed while the lift table is stored, and The ROH of the car body is short and the turning is effective, so it can be mounted on a small car body. [Structure] A lift table 1 which is arranged behind a cargo room and overlaid with a floor, and horizontal drive units 5, 7, 1 for moving the lift table inside or outside the cargo room while keeping it substantially horizontal.
1, 12, 13, 14 and lifting drives 2, 3, 4 for lifting and lowering the lift table substantially vertically to the ground when the lift table is outside the luggage compartment.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a load lifting device mounted on a truck for collecting and delivering cargo, and more particularly to a load lifting device of a type in which a moving floor is suspended.

[0002]

[Background technology]

 In recent years, moving luggage has been established by a major logistics company in which a system with a width of 1100 mm x length of 1100 mm x height of 1900 mm or a dedicated box with caster wheels attached to the bottom of a basket is used for transportation. , Is being deployed nationwide online. In addition, the same logistics company has established and operates a courier system on a nationwide network.

However, since a small-sized parcel is delivered to each individual home, the courier must be a small car with a short vehicle length so that it can be entered even on a narrow road. On the other hand, a special moving vehicle requires a large lifting device (table lifter) to load and unload the above-mentioned special box, and is a large vehicle with a long vehicle length.

It was impossible to equip the former small-sized home delivery vehicle with a large-sized lifting device as a result of impairing the function of the home delivery vehicle. The latter moving-only vehicle is inconvenient to use when the small luggage is taken in and out of the rear door without using the rear lifting device, because the lifting device becomes a nuisance. In addition, due to the heavy traffic congestion and severe parking regulations in recent years, the ability to turn around is poor, and speedy pickup and delivery processing is required for home delivery, which is completely inappropriate and cannot be used. In other words, since the load lifting device is used for lifting and lowering heavy loads from the ground to the loading platform, it is essential for moving vehicles that carry large heavy loads, but for home delivery vehicles that collect and deliver small loads. Was not necessary.

However, different vehicles result in different garages, sales offices, and drivers, and the same company operates different vehicles independently in the same area, which promotes traffic congestion. It is the current situation.

[0006]

[Problems to be solved by the device]

 As the lifting / lowering device for the load used in the above-mentioned moving vehicle, there are A to G types as shown in FIGS. 9 to 15. The same functional components will be described with the same reference numerals.

In the case of A, B, and E types (FIGS. 9, 10, and 13), the lift table 103 is moved up and down by the parallel link 104 and the elevating column 105. The lift table 103 is flipped up behind or in front of the rear door 102 of the chamber 101. This lift table 103 has a drawback that it cannot be loaded or unloaded in the luggage compartment 101 unless it is horizontally operated.

In the case of the C type (FIG. 11), since the lift table 103 is retracted and stored under the floor by the parallel link 104 during traveling, if the length L of the lift table 103 is increased, the rear wheel tires 106 are There is a drawback that the dimension ROH (rear overhang) to the rearmost part of the vehicle body becomes long and the entire vehicle body becomes long. The same applies to the D type (Fig. 12), where the floor of the ROH part moves up and down.

In the case of the F type (FIG. 14), since the lift table 103 is folded and stored under the floor during traveling, the storage work is complicated. In particular, when the lift table 103 is large, the weight becomes heavy and difficult to handle, and there is a drawback that the parallel link 104 is provided and the ROH cannot be made too short.

The G type (FIG. 15) is a modification of the A type, in which the lift table 103 is vertically tilted below the rear door 102 and stored. If the lift table 103 is made larger, the ground clearance H at the tip of the lift table 103 becomes insufficient during traveling, so that the lift table 103 cannot be made too large.

An object of the present invention is to solve the above-mentioned problems and to provide a large lift table for loading and unloading a large and heavy load, and to store a small and light small load in and out of the luggage compartment. An object of the present invention is to provide a lifting / lowering device for a load that can be mounted on a small vehicle body because the rear door can be opened and closed in this state so that loading and unloading of the vehicle is not hindered, and the ROH of the vehicle body is short, which allows for small turns.

[0012]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, an apparatus for lifting and lowering a load according to the present invention comprises a lift table which is arranged behind a luggage compartment and overlapped with a floor, and a lift table which is disposed inside or outside the luggage compartment in a substantially horizontal position. And a horizontal drive unit for moving the lift table outside the luggage compartment, and a vertical drive unit for moving the lift table up and down substantially vertically with respect to the ground. ..

In this case, the lift table may be slightly lifted in the vertical direction by the lifting drive unit when being driven by the horizontal drive unit.

[0014]

[Action]

 According to the present invention, since the lift table is arranged so as to be stacked on the floor, the lift table can be made large, and a large and heavy load can be loaded and unloaded. Moreover, the ROH of the vehicle body is short and the turning is effective, Can be mounted on a small vehicle body.

Further, since they are arranged on the upper side of the floor portion, the rear door can be opened and closed while the lift table is stored when a small and light parcel is taken in and out of the luggage compartment.

[0016]

【Example】

 Next, the present invention will be described in more detail with reference to examples. 1 to 3 are views showing a state in which an embodiment of a load lifting device according to the present invention is mounted on an automobile. FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a front and rear view. is there. 4 to 7 are views showing an extracted embodiment of a load lifting device according to the present invention. FIG. 4 is a side view, FIG. 5 is a rear view, FIG. 6 is a perspective view, and FIG. 7 is a moving mechanism. It is the figure which showed.

As shown in FIGS. 1 to 3, the automobile 20 is a vehicle used for home delivery and having a weight of about 3 tons. For example, a vehicle having a total length of 4755 mm, a total width of 1690 mm, and a total height of about 3060 mm is suitable. Used for.

In the automobile 20, a lift table (moving floor) 1 is arranged in an overlapping manner from the middle portion of the floor portion 21 in the front-rear direction to the rear side. The vehicle 20 is provided with left and right vertical outer boxes 3 and 3 along a side wall 22 of the body, and inside the outer boxes 3 and 3, a vertical inner box along the side wall 22 is also provided. 2, 2 are provided.

The lift table 1 is fixed to the inner boxes 2 and 2 at the lower ends thereof, and the hydraulic cylinders 4 and 4 are arranged in the inner boxes 2 and 2, respectively. The upper end of the hydraulic cylinder 4 is connected to the upper part of the outer case 3, and the lower end of the piston rod 4 a of the hydraulic cylinder 4 is connected to the lower part of the inner case 2.

The lower end of the outer box 3 is fixed to the lower beam 5 extending forward and backward along the side wall 22, and the upper end thereof is fixed to the upper beam 6 extending forward and backward along the side wall 22. As shown in FIG. 7, the lower beam 5 and the upper beam 6 are slidably inserted and supported in the lower outer beam 7 and the upper outer beam 8 fixed to the side wall 22 on the front side of the outer box 3. .. A spacer 9 is provided at a portion where the lower beam 5 moves out of the lower outer beam 7 so as to fill the difference in thickness from the lower outer beam 7.

A long rack 11 is fixed to the lower surface of the lower beam 7 in the front-rear direction, and a pinion gear 12 is meshed with the rack 11. As shown in FIG. 7, the pinion gear 12 is rotationally driven via a chain 14 by an electric or hydraulic motor 13 provided below the floor 21 of the automobile 20. Reference numeral 23 is a drive shaft.

Since the load lifting device of this embodiment is configured as described above, the lift table 1 is housed in the body of the automobile 20 during normal traveling. When the motor 13 is driven and the pinion gear 12 is rotated while the rear door 24 (see FIG. 3) is opened, when the rack 11 moves, the lower beam 5 moves rearward (direction of arrow A in FIG. 4). When the lower beam 5 moves, the outer box 3 and the upper beam 6, which are a structure integrally with the lower beam 5, move to the outside of the luggage compartment of the automobile 20 while maintaining a substantially horizontal position. At this time, it is desirable to raise the lift table 1 slightly by the hydraulic cylinder 4.

Next, the piston rod 4a of the hydraulic cylinder 4 provided in the outer case 3 is extended to lower the lift table 1 substantially vertically (direction of arrow B shown in FIG. 8). The lift table 1 may be stored in the reverse operation.

By using the load lifting device described above, a large number of trucks with a lifting device, which are currently used in Japan, and a small home delivery vehicle, which is also very often used, for parcel delivery Can be combined with. In other words, if a small courier is equipped with the lifting device of the present invention, the small courier will be able to collect and deliver moving luggage within its operating area. Therefore, the provision of the device for lifting and lowering cargo according to the present invention to a small-sized home delivery vehicle, which can partially take over the moving field, means that the current transportation industry suffers from a serious labor shortage and deterioration of traffic conditions. The economic effect on the is immeasurable.

8A and 8B are views showing another embodiment of the load lifting device according to the present invention. FIG. 8A is a side view and FIG. 8B is a rear view. In this embodiment, an example is shown in which a vehicle that is illegally parked is used as a transport vehicle for removing and moving. In that case, the upper ends of the left and right outer boxes 3, 3 are connected by the upper connecting rods 31 to maintain rigidity, and the lift table 1 is abolished. Instead, the tires 41 of the vehicle 40 serving as a load are moved forward and backward. A desorption bar 32 is provided for sandwiching and lifting.

As a result, even the vehicle 40 with the door locked and the parking brake applied can be loaded and moved without touching anything other than the tires 41 of the vehicle 40.

Each of the embodiments described above has the following various advantages that are not available in the past. Since the lift table 1 is arranged on the floor portion 21, the lift table 1 can be made large without being restricted by the ROH size.

When the lift table 1 is stored, the lift table 1 overlaps with the floor portion 21. Therefore, the lift table 1 does not hinder the opening and closing of the rear door 24 and the loading and unloading of the load table 1. Easy to take in and out.

Since the work of raising and lowering the load and the work of loading and unloading the load can be easily and safely performed by power without relying on human power, the work on the lift table 1 can be performed in the loading platform or on the ground.

Since, it is compact and has excellent small turning ability, frequent small luggage is taken in and out, and it is highly mobile, as well as a special moving vehicle that requires loading and unloading heavy heavy loads. That is, the home delivery vehicle can also serve as a moving-only vehicle.

Therefore, the lift table 1 can be made 5 to 6 m to provide a passenger car carrier. The passenger car 40 can be placed on the lift table 1 on the ground and stored as it is in the loading platform. Compared to the conventional method of moving the front wheel or rear wheel of the vehicle to be transported such as a passenger car such as a tow truck or hoisting it with a crane and carrying it on the loading platform, the detachment bar 32 can be removed more easily. Since it is work on the ground, it is highly safe. Moreover, when the vehicle is towed, a vehicle that cannot be towed in the past due to a broken traveling device can be easily and safely transported by using the detachable bar 32.

[0032]

[Effect of the device]

 As described in detail above, according to the present invention, since the lift table is arranged so as to overlap the floor portion, the lift table can be made large. Therefore, large and heavy luggage can be loaded and unloaded, and the ROH of the vehicle body is short, so that it can be installed in a small vehicle body with a small turning effect.

Further, since the rear doors can be opened and closed while the lift table is stored because they are arranged on the upper side of the floor portion, small and light parcels can be taken in and out of the luggage compartment. ..

[Brief description of drawings]

FIG. 1 is a plan view showing an automobile equipped with a first embodiment of a load lifting device according to the present invention.

FIG. 2 is a side view showing an automobile equipped with a first embodiment of a load lifting device according to the present invention.

FIG. 3 is a front view showing an automobile equipped with a first embodiment of a load lifting device according to the present invention.

FIG. 4 is a side view showing a first embodiment of a load lifting device according to the present invention.

FIG. 5 is a rear view showing a first embodiment of a load lifting device according to the present invention.

FIG. 6 is a perspective view showing a first embodiment of a load lifting device according to the present invention.

FIG. 7 is a diagram showing a horizontal drive unit of the lifting device according to the first embodiment.

FIG. 8 is a view showing an essential part of a second embodiment of a load lifting device according to the present invention.

FIG. 9 is a view showing a conventional example (A type) of a load lifting device.

FIG. 10 is a view showing a conventional example (B type) of a load lifting device.

FIG. 11 is a view showing a conventional example (C type) of a load lifting device.

FIG. 12 is a view showing a conventional example (D type) of a load lifting device.

FIG. 13 is a view showing a conventional example (E type) of a load lifting device.

FIG. 14 is a view showing a conventional example (F type) of a load lifting device.

FIG. 15 is a view showing a conventional example (G type) of a load lifting device.

[Explanation of symbols]

 1 Lift table (moving floor) 2 Inner box 3 Outer box 4 Hydraulic cylinder 4a Piston rod 5 Lower beam 6 Upper beam 7 Lower outer beam 8 Upper outer beam 9 Spacer 11 Rack 12 Pinion gear 13 Motor 14 Chain 20 Car 21 Floor 22 Side wall 23 Drive shaft 24 Rear door 31 Upper connecting rod 32 Desorption bar

Claims (2)

[Scope of utility model registration request] 1. A lift table disposed behind a luggage compartment and overlapping with a floor, a horizontal drive section for moving the lift table inside or outside the luggage compartment while keeping the lift table substantially horizontal, and the lift table. And an elevating and lowering drive unit for elevating and lowering the lift table substantially vertically with respect to the ground when the vehicle is outside the luggage compartment. 2. The lift table is slightly lifted in the vertical direction by the lifting drive unit when driven by the horizontal drive unit.
Lifting device for the cargo described.