JPH02124335A - Unloading device for load-carrying platform of vehicle - Google Patents

Abstract

PURPOSE:To facilitate cargo unloading work by providing the load carrying platforms of a car, etc., with a moving frame supported movably fore and aft, and allowing it to protrude from the opening of the rear body when moved to the backmost position. CONSTITUTION:A pair of rails 10 oriented fore and aft are put on the floor of a rear body 2 of a car, and further is this equipped with No.1 moving frame 11, which is reciprocative force and aft under guidance of these rails 10, and No.2 moving frame 12, which has a length half the first named frame 11 and is supported reciprocatively in the direction fore and aft by the No.1 movable frame 11. A chain 16 is set over between sprockets 14, 15 supported on the floor of the rear body 2, and No.2 moving frame 12 is coupled to an appropriate place of this chain 16 using a fixing member 17. A stopper 20 is furnished for prevention of forward movement by detaining with the front end of No.1 moving frame 11 when it has moved till the tail.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a loading/unloading device for a loading platform of a vehicle, etc., which greatly improves work efficiency when loading and unloading cargo onto the loading platform of a freight vehicle, etc.

(Prior art) In vehicles with a loading platform, such as trucks, wagons, and freight cars with one trailer, and in cargo storage means such as containers, the loading platform is located at a higher position than the ground, and the interior of the loading platform is deep. When loading cargo onto a loading platform, it is necessary to get on and off the loading platform many times and load items sequentially from the back. Also, when unloading the loaded baggage, it is necessary to start from hand+ii+ and sequentially unload the baggage at the back. In such loading and unloading operations, getting on and off the loading platform and carrying the vehicle back and forth between the back of the loading platform and the hand +14 are extremely complicated, and are inefficient tasks that require a great deal of labor and time.

(Objective of the Invention) The present invention has been made in view of the above, and it is an object of the present invention to significantly improve work efficiency by eliminating the need for getting on and off the vehicle and reciprocating to the back of the loading platform during loading and unloading operations on the loading platform of a vehicle, etc. The purpose of this invention is to provide a loading/unloading device for a cargo platform of a vehicle, etc.

(Summary of the Invention) In order to achieve the above object, the present invention comprises one or more movable pedestals supported movably in the longitudinal direction of the vehicle body on the loading platform of a vehicle, etc., and the movable pedestals are moved to the rearmost side. It is characterized in that it is sometimes configured to protrude to the outside from the loading platform opening.

Further, the present invention connects two 61 movable pedestals so that they can slide relative to each other, and the length of the second movable pedestal located in the E direction is approximately the length of the second movable pedestal located above. It is characterized by being halved.

(Example) Hereinafter, the loading and unloading device for a cargo platform of a vehicle or the like according to the present invention will be described in detail based on an example shown in the accompanying drawings.

FIG. 1 (al (bl) and (c) are diagrams illustrating a wagon car, a truck car to which the present invention is applied, and the basic principle of the present invention.

The loading/unloading device 1 of the present invention is used for a vehicle or the like (including freight cars, containers, etc.) 5 having a loading platform 2 as shown in FIG. 1 fa) (bl).

This loading/unloading device l is connected to a loading platform 2 as shown in Fig. 1 fc).
A pair of rails (or a plurality of rails) laid in the front-rear direction on the floor surface of a first movable pedestal +1 that can freely move back and forth;
The first movable pedestal has approximately half the length of the movable pedestal 11! 1, a second movable base 12 is supported so as to be able to reciprocate in the front-back direction (between the dotted line position and the solid line position), and a sprocket 14 is supported on the floor surface of the loading platform 2.
, I5 extends endlessly in the front-rear direction, and has a second movable base 12 and a chain 16 fixed by a fixing member ]7. Reference numeral 20 denotes a stopper that engages with the front end of the first movable base to prevent it from moving forward when the first movable base 11fJSB moves to the rear end position indicated by the solid line.

A loading plate 18 for placing cargo is laid on the entire inside surface (or at least the front half) of the first movable base 11, and
The movable pedestal 12 also includes a loading plate +2a for placing cargo.

In the above configuration, when loading the luggage 30 onto the loading platform 2, first pull out the first movable base 11 rearward as shown in FIG.
0, and the second movable pedestal 12 is also positioned at the rear. In this state, the cargo 30 is loaded on the second movable pedestal 12, and then the second movable pedestal 12 is shown by a solid line. If you move it forward like this, it will be located at the bottom! Since the rear half of the loading plate 18 of the movable base is exposed, the remaining cargo is loaded on this loading plate 18. In this way, when the loading of cargo is completed on the second movable base 12 located at the front and the first movable base 11 located at the rear, the stopper 2
0 to the OFF state and the first movable pedestal II entire loading platform 2
Slide it to the back (front) of the and door 31
Loading is completed by closing the

These operations are realized by driving the chain 16 with a motor.

When unloading cargo in the opposite manner to the above, the cargo loaded on the second movable pedestal 12 is located at the back (front), and the cargo loaded on the loading plate 18 of the first movable pedestal +1 is located at the front. Since it is located on the side (rear), the motor drives the first movable pedestal! ■ Pull out the rear half as it is, unload the loaded items one by one, and after unloading the items on the loading plate 18, further drive the motor to move the second movable pedestal 12 backwards. and unload the baggage in the back. In addition, chain 16
Since it is the second movable pedestal 12 that is directly engaged with the second movable pedestal 12, when the first movable pedestal 11 is pulled out with luggage loaded on the loading plate 18 and the second movable pedestal 12, respectively. teeth,
It is also possible that only the second movable base 12 slides backward without moving the first movable base 11, but the second movable base 12 is moved backward by the cargo loaded on the loading plate +8. Since movement is prohibited, the entire first movable base 11 can protrude rearward by running the chain 16. If there is no cargo on the loading plate 18 and only on the second movable pedestal 12, the second movable pedestal 12 and the first movable pedestal 11 are sequentially moved rearward by the drive of the motor to load the cargo as needed. There is no problem as long as it sticks out.

When moving the first movable base 11 (including the second movable base 12) in the state shown in FIG. and return it to the dotted line position, then move the second movable base 1
2 is moved to the innermost part together with the first movable base 11. Conversely, when moving the first movable base 11 located at the innermost part to the protruding position shown in FIG. 1 fcl, the second movable base 12 is moved to the first movable base l! It is moved to the rear end, and then the second movable pedestal 12 is moved to the rearmost part together with the first movable pedestal +1.

Figure 2 [al to (dl) are specific configuration examples of the loading and unloading device of the present invention, and as shown in fal, fixed guide rails IO fixed on the floor surface of the loading platform 2 are arranged at predetermined intervals in the length direction. The first movable pedestal 11 is fixed to the lower surface of the plate 18 and is engaged to surround each roller loa.
It has a guided rail 40 supported movably in the front and rear direction by an oa. The second movable base 12 is guided by a guide 4I fixed on the temporary 18 and a roller 45 is moved.
has.

The loading plate +2a of the second movable base 12 is fixed to the chain 16 via a fixing member 17.

A motor M is connected to the sprocket 14 on the hand ii'if (rear) side of the loading platform, and by operating the handle 45, the motor is turned on and off to drive the chino.
Can be stopped. The motor M is configured to be capable of forward and reverse rotation or forward and reverse rotation via a clutch, and moves the second movable pedestal 12 and the first movable pedestal 11 rearward during forward rotation.
Move it forward when reversing.

FIGS. 3(b) and 3(c) show another embodiment of the present invention, and (al) is an explanatory view of an example in which the present invention device is applied to a loading platform formed on the side wall of a path.

This loading/unloading device 1 moves a first movable base 11 to a loading platform 2 using a pair of idle rails 10 arranged on the floor of the loading platform 2.
It is designed to be able to move freely in and out of the building. Said first
Similar to the embodiment described above, a two-stage structure in which the second movable pedestal is slidably provided on the first movable pedestal may be used, but since there is a limit to the depth of the loading platform formed on the side wall of the bus, - A stage type is sufficient.

In this second embodiment, when loading and viewing luggage, the first
The movable pedestal 11 is made to protrude as shown in FIG.

In addition, in the case of an extremely deep loading platform such as a loading platform towed by a trailer, it is possible to use a loading/unloading device consisting of three or more stages of movable bases.

FIG. 4 shows a stopper 20 used in each of the above embodiments.
This is an explanatory diagram of a specific configuration of an example, and the stopper 20 includes a locking piece 21 fixed on the floor surface of the loading platform 2 and the front side 11a of the first movable base II (or the front end of the loading plate 18). A locking hook 22 is pivotally supported to be able to move up and down, and a locking hook 22 is
A spring 23 that constantly biases the hook part 22a at the tip in the locking direction and presses the hook part 22a downward, and the pressed g(
and a release means 25 for pressing the S 22b against the spring 23. The first movable pedestal II is shown in Figure 1 (c) from the front.
l When the IL hook 22 is moved to the rear position shown in
The hook portion 22a rotates in the direction B against the spring 23 and once overcomes the locking piece 21, returns to the direction B as shown in FIG. 4, and engages with the locking side 21. Forward movement of the first movable base is prohibited.

To release the engagement between the hook portion 22a and the locking side 21, the release means 25 is activated to press (or pull) the pressed portion 22b against the spring 23.

For example, the release means 25 engages one end of a wire with the suppressed part 22b, and releases the suppressed part by pulling or pressing the wire or the like using an electric switch or a mechanical switching handle provided near the handle 45. It is configured to operate against a spring.

In this way, the present invention lays a guide rail from the back to the front of the loading platform of a vehicle, supports the movable platform so that it can move freely in the front and rear directions, and furthermore, when the movable platform is pulled out to the frontmost side, the loading platform is The movable base is configured to protrude a predetermined amount from the opening to the outside. Furthermore, since the =r moving platform is configured as a two-stage type and each stage can be moved forward and backward independently, when this is applied to a deep loading platform, it is possible to get on and off the loading platform, and to move between the back and the opening. It is possible to improve the loading and unloading work efficiency by eliminating the need for complicated operations such as reciprocating movement between the loading and unloading parts.

In the above embodiment, the configuration in which the movable bases (11, 12) are made to protrude further outward than the rear edge of the loading platform 2 mainly by means of the rail 10 is shown, but the scope of the present invention is not limited to this, and the movable bases (11, 12) are This also includes a case where the maximum protrusion position of the rear end edge of the pedestal coincides with the rear end edge of the loading platform 2, a case where it is slightly retracted, etc.

In other words, various forms can be assumed as the maximum movement position of the movable base from the inside to the outside of the loading platform.

(Effects of the Invention) As described above, according to the present invention, workability can be significantly improved by eliminating the need for getting on and off the vehicle and reciprocating to the back of the loading platform during loading/unloading operations on the loading platform of a vehicle or the like.

[Brief explanation of the drawing]

Fig. 1 (at lbl and fc) is a diagram explaining a wagon car, a truck to which the present invention is applied, and the basic principle of the present invention, and Fig. 2 (al (bl) (c) and (dl are main parts of the device of the present invention) A front view showing a specific configuration example, a plan view of the chain section, a plan view of the guide rail section, and a plan view of the first movable base, and FIGS. 3(a) +bl and (c) are other embodiments of the present invention. Fig. 4 is a diagram illustrating a specific configuration of an example of a stopper.l...Loading/unloading device 2...Loading platform 10...Rail +1...First movable pedestal (Movable base of base l) +2... Second movable base l 4. 15... Sprocket ■6... Chain 17... Fixed member 18... Plate 20... -Stopper 30... luggage

Claims (3)

[Claims] (1) Consisting of one or more movable pedestals supported on the loading platform of a vehicle, etc. so as to be movable in the longitudinal direction of the vehicle body, and the movable pedestals are configured to protrude outside from the loading platform opening when moved to the rearmost position. A loading/unloading device for a loading platform of a vehicle, etc., characterized in that: (2) In the loading/unloading device for a cargo platform of a vehicle, etc. according to the first claim, the two movable bases are connected to each other so as to be slidable relative to each other, and the length of the second movable base located above is adjusted upward. A loading/unloading device for a cargo platform of a vehicle, etc., characterized in that the length is approximately half the length of the second movable pedestal. (3) The loading platform for a vehicle, etc. according to claim 1 or 2, wherein the rearmost position of the movable base is aligned with or located in front of the rearmost edge of the loading platform. loading and unloading equipment.