JP2004001927A - Two-step type storage device and motor-truck using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a two-step type storage device suitable to be provided in a baggage box of a motor-truck for entrance delivery and enhancing a storage efficiency and a loading efficiency by effectively utilizing a baggage chamber regarding the baggage in which superposing and the number of superposing layers are restricted. <P>SOLUTION: A roller conveyor 2 is laid on a floor surface of the baggage chamber and a lifting base 3 in which a height position of the whole becomes lower than a conveying surface of the roller conveyor 2 at a descending terminal end is further provided on an upper side of the roller conveyor. The lifting base 3 made to a baggage shelf of an upper stage is raised by a lifting mechanism 4 and the baggage on the roller conveyor 2 is transferred onto the lifting base. A new baggage is loaded on the empty roller conveyor 2 and is stored. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a two-stage storage device that enables effective use of a luggage compartment and efficient loading and unloading of luggage, and a freight vehicle such as a truck employing the same.
[0002]
[Prior art]
For example, in door-to-door delivery of luggage (freight) using a van type truck, loading is performed on the premise of first-in, first-out. In this case, in order to reduce the transportation cost, it is usual to increase the loading efficiency by stacking the luggage that is allowed as much as possible, but if emphasis is placed on the loading efficiency, the premise of first-in first-out is broken. In some cases, it is necessary to stack the luggage to be unloaded later on the luggage to be unloaded. In such a case, it is necessary to temporarily retreat the upper luggage and take out the lower luggage.
[0003]
In addition, there are some packages whose stacking and the number of stacks are restricted, and the use efficiency of the luggage space for such packages is reduced, and the loading efficiency cannot be increased.
[0004]
Here, if the entire luggage compartment of the van type truck is partitioned into, for example, upper and lower two-tiers, the floor area of the luggage compartment can be doubled. I have trouble loading and unloading luggage. In addition, the height of the floor of the upper luggage compartment is increased, so that a lift or the like for lifting and lowering luggage at the entrance is required.
[0005]
In addition, when this method is employed, the size of the luggage compartment is reduced, so that large luggage cannot be stored or transported.
[0006]
It is an object of the present invention to provide a two-stage storage device that eliminates the above-described problems and a freight vehicle that employs the storage device.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is configured such that a roller conveyor for carrying a load and carrying it to a target point is provided, and a horizontal ridge is provided between the left and right outer frames at a pitch capable of receiving the load on the roller conveyor. The roller conveyor is laid on the floor of a luggage compartment, and further, the lift table is placed above the roller conveyor, and the lower end point of the table is set. Then, the horizontal ribs enter between the rollers of the roller conveyor and are arranged so that the position of the elevator is lower than the conveying surface of the roller conveyor, and the elevator is raised to become the upper shelf, and after the elevator is lifted. Provided is a two-stage storage device in which a roller conveyor serves as a lower shelf.
[0008]
The roller conveyor of this apparatus is preferably of a power driven type, and when the frontage of the floor is wide, it is preferable to lay a plurality of the roller conveyors in parallel.
[0009]
Further, it is preferable that the lifting mechanism moves the movable member screwed to the screw shaft with a screw shaft, and lifts the lifting table by pulling a wire hanging the lifting table with the movable member.
[0010]
According to the present invention, there is also provided a freight vehicle such as a truck or a freight car in which the above-described two-stage storage device is provided on a loading platform so that the luggage compartment can be divided into upper and lower stages and used.
[0011]
[Action]
When the elevating platform is raised, it becomes an upper shelf and the luggage compartment is divided into two upper and lower stages. Therefore, the total floor area of the luggage compartment is almost doubled, and the storage efficiency can be improved even for the luggage whose stacking and the number of stacking are restricted.
[0012]
In addition, since the roller conveyor serving as the lower shelf is also used for loading and unloading the luggage in the upper shelf, simplification of the apparatus, reduction of costs, reduction of the work load of the operator, and improvement of the efficiency of taking in and out can be achieved.
[0013]
Further, since the entire upper shelf is constituted by a lifting platform, it is possible to take in and out the luggage without a lift.
[0014]
In addition, when the elevator is lowered, there is no partition in the luggage compartment, so that large luggage is not subject to storage restrictions.
[0015]
Note that a storage device using a power-driven roller conveyor allows an operator to load and unload luggage without entering a luggage compartment. It is not preferable that the worker enters the luggage compartment not only in terms of work efficiency but also in terms of safety.
[0016]
Further, in a device in which a plurality of roller conveyors are laid in parallel, the width of the conveyor can be reduced to increase rigidity, and a heavy object can be stored.
[0017]
In addition, a screw shaft that generates a thrust to pull the wire and lift the lifting platform with the wire can raise and lower the lifting platform in a well-balanced manner, and freely adjust the height position of the upper shelf formed by the lifting platform. You can change it.
[0018]
This two-stage storage device is suitable for first-in / last-out luggage, and a particularly great effect is expected if this device is provided in a door-to-door delivery freight vehicle on which first-in / last-out is the basis. it can.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
[0020]
As shown in FIGS. 1 to 5, the two-stage storage device 1 includes several roller conveyors 2 arranged in parallel on the floor of a luggage compartment, an elevator 3 provided above the roller conveyors, It is provided with a lifting mechanism 4 of a lifting table. Reference numeral 5 denotes a body defining a luggage compartment, and the exemplified two-stage storage device 1 is provided inside the body 5. In the case of a device installed indoors, the body 5 is not essential.
[0021]
As shown in FIGS. 6 to 9, the roller conveyor 2 has an independent bracket 2b erected on a base frame 2a, and a drive roller 2c (the illustrated roller is a drive roller) between a pair of left and right brackets 2b. A built-in motor), a driven roller 2d that receives a rotational force from a driving roller 2c via a belt 2f, and a normal roller 2e independent of these rollers in a regular array pattern. I use something. By rotating the roller conveyor 2 forward and backward, the load A (see FIG. 7) placed on the conveyor 2 is taken in and out. The power transmission between the rollers 2c and 2d may be carried out by passing a wide conveying belt between the two rollers. In this case, the outer diameter of the roller 2e is made larger than the other rollers to convey the conveying belt. The height position of the surface and the conveying surface of the roller 2e are aligned.
[0022]
As shown in FIGS. 10 to 12, the lift 3 is configured by passing a horizontal support 3 b between the left and right outer frames 3 a at a pitch capable of supporting the load on the roller conveyor 2. The elevator 3 shown in the drawing includes a reinforcing longitudinal ridge 3c to be inserted into a gap between adjacent roller conveyors, but the longitudinal ridge 3c may be provided as needed.
[0023]
When the elevator 3 is at the end point of descent, the horizontal support 3b enters between the rollers 2c and 2e and between 2d and 2e, and the outer frame 3a is placed outside the roller conveyors 2 on both sides, and The entire position is lower than the conveying surface of the roller conveyor 2. Therefore, the loading and unloading by the roller conveyor 2 can be performed even when the lifting platform 3 is at the descent end point.
[0024]
The lifting mechanism 4 includes a screw shaft (preferably a trapezoidal screw or a ball screw) 4a provided between the roller conveyor 2 and the body 5 on both sides, a driving mechanism 4b for synchronizing rotation of the left and right screw shafts 4a, and each screw shaft. A movable member 4c screwed to both ends of 4a, a total of four wire posts 4d, pulleys 4e respectively attached to the upper and lower ends of the wire posts and the tip of the movable member 4c, and one end hooked on these pulleys Is composed of a total of four wires 4f for fixing the other end to the lower anchoring portion of the wire support 4d, and a lifting guide 4g provided at the four corners of the lifting platform 3.
[0025]
On the screw shaft 4a, a right-hand screw and a left-hand screw are formed in half. The screw shaft 4a is rotated forward and reverse to move the movable members 4c screwed to both ends in opposite directions, and pull the wires 4f with the movable members 4c to lift the elevating platform 3 as shown in FIGS. Like that.
[0026]
The lifting mechanism 4 may be a mechanism using a hydraulic cylinder as a drive source. However, the lifting mechanism 4 can raise and lower the four corners of the lifting table 3 in synchronization, and is excellent in operation stability. Further, there is an advantage that the elevator 3 can be stopped at an arbitrary position and the position can be held there, and the height of the upper shelf can be adjusted.
[0027]
In the two-stage storage device 1 configured as described above, a load A is placed on the roller conveyor 2 at the entrance of the luggage compartment, and the load A is sent to a target point, that is, a position where movement is restricted. The movement of the luggage is restricted by the luggage sent to the wall at the back end of the body 5 or the luggage.
[0028]
When the loading of the luggage to be stored in the upper shelf is completed, the lifting mechanism 4 is driven to raise the lifting platform 3, and the luggage on the roller conveyor is transferred to the lifting platform 3 and stored in the upper part of the luggage compartment.
[0029]
Thereafter, new luggage is placed on the roller conveyor 2 serving as a lower luggage shelf and sequentially sent to the front of the luggage compartment, thereby completing the storage operation.
[0030]
In addition, when taking out the luggage, the roller conveyor 2 is reversed, the luggage on the conveyor 2 is taken out first, and when the luggage on the lower shelf is exhausted, the elevator 3 is lowered, and the luggage returned on the roller conveyor 2 is returned. Again on the conveyor 2. Therefore, the loading and unloading of luggage by this device is first-in, first-out.
[0031]
FIG. 13 shows an example in which the present invention is applied to a van type cargo truck. This cargo truck 6 is equipped with a body 5 shown in FIGS. 1 to 5 as a packing box on a carrier, and a two-stage storage device shown in FIGS. (Not shown).
[0032]
If this cargo truck is used for carrying or door-to-door delivery of cargo whose stacking or number of stacks is regulated, it is possible to improve the loading efficiency and the efficiency of loading and unloading the cargo.
[0033]
【The invention's effect】
As described above, the two-stage storage device of the present invention and the freight vehicle provided with the same in the luggage compartment are provided with the elevating platform serving as the upper-stage loading shelf. In addition, the storage efficiency and the loading efficiency can be improved without breaking the principle of first-in, first-out.
[0034]
In addition, since the luggage stored in the upper and lower shelves is loaded and unloaded by sharing the roller conveyor laid on the floor, loading and unloading of luggage can be performed efficiently with a low-cost apparatus.
[0035]
Furthermore, when the elevator is lowered, the luggage room becomes one, so that large luggage is not subject to storage restrictions.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the apparatus of the present invention. FIG. 2 is a side view of the above apparatus. FIG. 3 is a front view of the above apparatus. FIG. 4 is a side view of a state in which an elevator is raised. FIG. 5 is a front view of a state where the elevator is raised. FIG. 6 is a plan view of the roller conveyor. FIG. 7 is a side view of the roller conveyor. FIG. 8 is a front view of the roller conveyor. FIG. 9 is an enlarged front view of the roller conveyor. FIG. 10 is a plan view of a lift table. FIG. 11 is a side view of the lift table. FIG. 12 is a front view of the lift table. FIG. 13 is provided with a two-stage storage device of the present invention in a body (packing box). Side view of cargo truck [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Two-stage storage apparatus 2 Roller conveyor 2a Base frame 2b Bracket 2c Driving roller 2d Driving roller 2e Roller 2f Belt 3 Elevating base 3a Outer frame 3b Horizontal support 3c Vertical support 4 Lifting mechanism 4a Screw shaft 4b Drive mechanism 4c Moving member 4d Wire Support 4e Pulley 4f Wire 4g Lifting guide 5 Body 6 Cargo truck

Claims (5)

A roller conveyor that carries the load and carries it to the target point, an elevator that is constructed by passing a horizontal ridge between the left and right outer frames at a pitch that can support the load on the roller conveyor, and an elevator that raises and lowers this elevator And a mechanism,
The roller conveyor is laid on the floor of the luggage compartment, and the elevator is placed above the roller conveyor. At the end point of descent of the platform, the horizontal ridge enters between the rollers of the roller conveyor, and the position of the elevator is changed to the roller conveyor. A two-stage storage device which is arranged so as to be lower than the conveying surface of the upper stage and raises the elevator to form the upper shelf, and the roller conveyor after the elevation of the elevator becomes the lower shelf. 2. The two-stage storage device according to claim 1, wherein said roller conveyor is a power-driven conveyor. The two-stage storage device according to claim 1 or 2, wherein a plurality of the roller conveyors are laid in parallel. 4. A mechanism for moving a movable member screwed to the screw shaft by a power-driven screw shaft and pulling a wire hanging the lift table by the movable member to lift the lift table. 3. The two-stage storage device according to any one of 3. A freight vehicle in which the two-stage storage device according to any one of claims 1 to 4 is provided on a carrier, and a luggage compartment is divided into upper and lower stages for use.

Images