JP2737024B2 - Connecting device between slide deck and its drive device in cargo handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Industrial Application Field The present invention relates to an elevating frame capable of elevating between a loading platform and the ground,
The present invention relates to a loading / unloading device including a lifting frame and a slide deck movable between a loading platform and a connecting device for connecting the slide deck to a moving drive device.

(2) Conventional technology Conventionally, a lifting frame that is raised and lowered by a lifting mechanism is provided on one side of a conventional loading platform, and a slide deck that can be transferred onto the lifting frame is provided on the loading platform, and lifting and lowering operation control of the lifting frame is provided. A loading / unloading device is known in which the loading / unloading of cargo is performed between the loading platform and the ground by controlling the reciprocating movement of the slide deck between the loading platform and the lifting frame (see Japanese Patent Application Laid-Open No. 63-219434). ).

(3) Problems to be Solved by the Invention By the way, in such a cargo handling device, a slide deck usually provided on a loading platform is connected to a driving device and forcibly reciprocated between the loading platform and the lifting frame, and the slide deck is moved up and down. When the slide deck is moved upward, the connection between the driving device and the slide deck must be released, and when the slide deck is placed on the bed, the slide deck must be fastened to the bed.

By the way, in such a cargo handling device, in order to enhance the efficiency of the cargo handling operation, it is desirable to enhance the reliability, safety and easiness of the connection operation of the connecting device between the loading platform and the slide deck and the switching operation of the detachment, and the slide deck. When the slide deck is installed on a loading platform, it is desirable that the slide deck be securely fastened to the loading platform so that the slide deck on the loading platform does not rattle even when the loading platform is provided in a cargo handling vehicle. However, no countermeasure against the request is taken in the conventional device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a connection device between a slide deck in a new cargo handling device and a driving device thereof, which can satisfy all of the above requirements with a simple configuration. It is the purpose.

B. Configuration of the Invention (1) Means for Solving the Problems According to the first aspect of the present invention, a slide is provided so as to be movable between a loading platform and a lifting frame provided on one side thereof. A coupling device for connecting a deck and a driving device for driving the slide deck, wherein the driving device is provided with a coupling member capable of moving back and forth with respect to the slide deck, while the slide deck includes the coupling member. Receiving portion, a connecting member that can be connected to and detached from the connecting member in the receiving portion, an operating portion that can be operated from the outside, and a connecting link mechanism that can transmit an operating force of the operating portion to the connecting portion. Provide.

According to the second aspect of the present invention, there is provided a connecting device for a slide deck movably provided between the loading platform and the elevating frame, and a driving device for driving the slide deck, wherein the driving device includes: A connecting member capable of moving back and forth with respect to the slide deck; a connecting member capable of connecting to and detaching from the connecting member provided on the slide deck; A step-like rising wall for regulating forward movement of the slide deck is formed, and the connecting member is formed with a claw piece which abuts with the connector when connected to the connector to regulate rearward movement of the slide deck. Is done.

(2) Operation According to the configuration of the first invention, the operation of connecting and disconnecting the connecting device provided between the slide deck and its driving device can be performed easily, reliably, and safely.

In the first aspect of the invention, when the connecting device is at the uncoupling position, the uncoupling holding mechanism restrains the connecting link mechanism, so that the connecting device can be connected more accurately and smoothly.

Further, according to the configuration of the second aspect, the connecting device between the slide deck and its driving device also has a function of securing the slide deck on the carrier, and firmly secures the slide deck on the carrier. It is possible to prevent rattling and play.

(3) Example Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a front side view of a cargo handling vehicle V provided with the cargo handling device of the present invention, and FIG. 2 is a plan view thereof. In these figures, a loading platform A is formed at the rear of a cargo handling vehicle generally denoted by a reference character V on a vehicle body B, and a pair of guide rails parallel to each other at intervals in the vehicle width direction on the loading platform A. 1, 1 are laid along the vehicle length direction, and a pair of guide columns 2, 2 parallel to each other are erected in the left and right corners of the rear end of the vehicle body B in a vertical direction. The columns 2, 2 guide the lifting and lowering of a lifting frame Fe described later. On the vehicle body B, a slide cylinder 3 as a drive device is disposed in the center in the vehicle width direction in the front-rear direction. The slide cylinder 3 is supported by the vehicle body B, and has a flat surface at its tip. or hook-like coupling member 4 is provided integrally, the linking member 4 protrudes on該荷table a through a stepped erecting walls a ₁ of the front end of the bed a by extension operation of the slide cylinder 3 (FIG. 8).

The pair of guide posts 2, 2 have a substantially vertical guideway.
5, 5 are formed, and a pair of elevating members 6, 6 are respectively engaged with the guide paths 5, 5 via guide rollers 7, 8 provided thereat so as to be vertically movable. At the lower part of the pair of elevating members 6, 6, the base ends on both sides of the elevating frame Fe are supported between the extended position (solid line position in FIG. 1) and the storage position (dashed line position in FIG. 1) with the support shafts 9, 9. It is rotatably supported up and down.

The elevating frame Fe is formed by a rectangular frame having a concave portion 10 open rearward at the center of the rear edge thereof, and has a cross-section coaxial with the guide rails 1, 1 on both left and right sides thereof. A pair of letter-shaped guide rails 11, 11 are laid integrally.

A pair of stoppers 1 is provided at the rear end of the lifting frame Fe.
2 and 12 are projected upward, and these stoppers 12 and 1
2 is an abutment piece 72, 72 (No.
(FIGS. 5 and 6) so as to regulate the retreat position of the slide deck Ds. Further, a pair of locked parts 13, 13 are provided integrally on the inner surface of the concave part 10, and these locked parts 13, 13 are fixed to a locking hook 70 of a slide deck Ds described later.
(FIGS. 5 and 6). Engagement pieces 14, 14 are integrally protruded from the base ends on both sides of the elevating frame Fe.
The lifting members 4 and 14 are engaged with position-adjustable locking members 15 and 15 provided at the lower end of the lifting member 6, and the lifting frame Fe is held at a substantially horizontal extended position.

The elevating frame Fe is controlled to elevate along the pair of guide posts 2, 2 by an elevating function E provided on the vehicle body B. Next, the structure of the lifting mechanism E will be described mainly with reference to FIG. 9. The lifting cylinder 16 is provided on the vehicle body B, and a pair of moving pulleys 17, 1
7 'is supported. 2 on both sides of the lifting cylinder 16
The base ends of the wire ropes 18 and 18 'are bound respectively,
One wire rope 18 passes through one moving pulley 17, fixed pulleys 20 and 21 supported on the vehicle body B, and a fixed pulley 22 supported on the upper part of one guide support 2, and then to one lifting member 6. The other wire rope 18 'is connected to the other pulley 17', the fixed pulley 24 pivotally supported by the vehicle body B, and the fixed pulley 25 pivotally supported on the upper part of the other guide post 2. It is connected to the other lifting member 6. Therefore, if the single-acting lifting cylinder 16 is extended and retracted, the lifting frame Fe is connected to the pair of guide posts via the two wire ropes 18 and 18 '.
You can go up and down along 2,2. Lifting cylinder 1
If 6 is made free, the lifting frame Fe descends by its own weight.

On the loading platform A of the vehicle body B, a slide deck Ds which can be transferred on the lifting frame Fe is provided so as to be movable back and forth.

This slide deck Ds is constructed by integrally laying a load receiving plate 30 made of an iron plate or the like on a square deck frame 29 as shown in FIG. As shown in FIGS. 3 and 5, the deck frame 29 is formed as a highly rigid rectangular frame by integrally connecting a plurality of cross members 28 to the left and right vertical beams 27, 27. Receiving plate 30
The rear end is formed on an inclined surface 31 that is inclined rearward and downward.

As shown in FIG. 8, a pair of left and right holding frames 32, 32 are erected along the front-rear direction on the left and right sides of the load receiving plate 30, and these holding frames 32, 32 have a pair of aircraft serving as cargo. Tires T, T
(FIGS. 1 and 2) are held tight by the cords 33, 33.

Guide frames 35 and 35 made of angle materials are fixed to the right and left deck frames 29 of the slide deck Ds, respectively.
A plurality of horizontal regulating rollers 36 ‥ and a vertical regulating roller 37 ‥ are rotatably supported on these guide frames 35, 35, respectively. These rollers 36 ‥ and 37 ‥ Rollably engage with 1, 1 to guide forward and backward movement of slide deck Ds.

As is clearly shown in FIGS. 3 and 5, a flat U-shaped receiving portion 38 opening to the front edge is formed at the center of the front end of the deck frame 29 of the slide deck Ds. A fork-like connecting member 4 with three tips can enter, and the connecting member 4 is provided on the inner surface of the receiving portion 38.
The distal end surface 4 ₁ and abutment surface 38 ₁ which may abut the is formed.

The slide deck Ds includes the slide cylinder 3
In cooperation with the connecting member 4 at the tip, the connecting link mechanism 39 constituting the connecting device J for connecting the slide deck Ds and the slide cylinder 3, and the stopper 12 and the locked portion 13 are cooperated. Further, a securing link mechanism 40 constituting a securing device L for securing the slide deck Ds is provided on the elevating frame Fe.

Next, the configurations of the connecting link mechanism 39 and the securing link mechanism 40 will be described with reference to FIGS.

First, the structure of the connection link mechanism 39 will be described. As shown in FIGS. 3 to 6 and 10, the operation of extending horizontally in the rear of the deck frame 29 of the slide deck Ds via a plurality of bearing bosses 41, 41. A lever 42 is rotatably supported, and one end of the operation lever 42 is bent at a substantially right angle to form a handle 43. An arm 44 is welded to the center of the operation lever 42, and one end of a connection rod 45 whose length can be adjusted is connected to the tip of the arm 44. This connecting rod 45 is a slide deck
Ds is extended forward and connected to the swing lever 46. The swing lever 46 has an intermediate portion pivotally supported by a bracket 47 projecting from the cross member 28 at the front of the slide deck Ds with a pivot 48 so that the swing lever 46 has one end. The connecting rod 49 is connected. The front part of this connecting rod 49 is
An arm 51 integral with a connection shaft 50 rotatably supported at the center of the receiving portion 38 at the front end thereof.
Are connected. A connector 52 is fixed to the connection shaft 50,
The connector 52 can rotate about 90 ° between the connection position (a) shown in FIG. 3 and the connection release position (b) shown in FIG. 5 in the fork hook-shaped connection member 4. and it is in the, also the claw piece 4 _2, 4 ₂ of the inner surface of the connecting member 4 is engaged at one side thereof. As shown in FIGS. 3 and 4, when the handle 43 is in the prone position and the operating lever 42 is rotated clockwise in FIG. 4, the connecting rod 45 moves backward (arrow (X) in FIG. 3).
Direction) through the swing lever 46 and the connecting rod 49
52 is held at a lock position (a) orthogonal to the traveling direction of the vehicle V. When the operating lever 42 is turned upright as shown in FIG. 6 with the handle 43 upright as shown in FIGS. 5 and 6, the connecting rod 45 is moved forward (in the direction of the arrow (X ') in FIG. 5). ) And the connector 52 via the swing lever 46 and the connecting rod 49.
Is rotated and held at an unlocked position (b) substantially parallel to the traveling direction of the vehicle V.

The connection link mechanism 39 is provided with a connection release holding mechanism 54 for holding it at the connection release position.

Next, the structure of the mechanism 54 will be described with reference to FIGS. 3 to 6 and FIG. 10. A lock pin 55 protrudes from the free end of the swing lever 46. On the other hand, a lock arm 56 is pivotally supported on the cross member 28 of the slide deck Ds in the vicinity of the free end of the swing lever 46, and the lock arm 56 has the lock pin 55 A notch 58 is formed which can be disengaged from the notch. The lock arm 56 is engaged with the other end of a tension spring 59 whose one end is locked to the slide deck Ds. The elastic force of the tension spring 59 is, as shown in FIG. 52 is in the uncoupling position (b), and the connecting member 4 of the slide cylinder 3 is
When it deviates further, the notch 58 can be urged to a position engaged with the lock pin 55 to hold the coupling device J in the disconnection position. A link 60 is provided at the free end of the lock arm 56.
Is connected to one end of a bell crank 62 which is rotatably supported on a receiving portion 38 of the slide deck Ds, and a roller 63 is rotatably supported on a free end of the bell crank 62. . As shown in FIGS. 3 and 5, the roller 63 is at a position where the slide cylinder 3 is extended and the connecting member 4 at the distal end thereof can be engaged with the side surface when the connecting member 4 enters the receiving portion 38 of the slide deck Ds. As a result, the bell crank 62 is rotated counterclockwise, and the lock arm 56 is held at the unlocked position against the spring force of the tension spring 59 as shown in FIGS.

Next, the structure of the securing link mechanism 40 of the securing device L for securing the slide deck Ds on the lifting frame Fe will be described with reference to FIGS. A pair of arms 65, 65 are fixed on the left and right sides of the connecting rod 45, and lashing rods 66, 66 whose length is adjustable are pivotally connected to these arms 65, 65, and these lashing rods 66, 66 are connected.
Extends forward, and the other ends are each a slide deck Ds
Are pivotally connected to arms 69, 69 integral with securing shafts 68, 68 which are rotatably supported by the cross member 28 via brackets 67, 67. A pair of downward lashing hooks 70, 70 are fixed to the lashing shafts 68, 68, respectively.
Reference numerals 0 and 70 are adapted to be detachably engaged with the locked portions 13 of the lifting frame Fe, respectively. Thus, when the handle 43 integral with the operation lever 42 is in the upright position as shown in FIGS. 1, 5, and 10, the securing hooks 70 and 70 rotate clockwise to lock the lifting frame Fe. It is in a position engaged with the parts 13,13. Therefore, it can be easily visually confirmed from the outside that the slide deck Ds is fixed on the lifting frame Fe by the standing position of the handle 43.

An abutment piece 72 is fixed to the back surface of the inclined surface 31 of the slide deck Ds, and the abutment piece 72 moves up and down when the slide deck Ds is transferred onto the elevating frame Fe as shown in FIGS. The rear position of the slide deck Ds can be defined by engaging with a stopper 12 fixed to a rear portion of the frame Fe.

FIG. 11 shows a hydraulic circuit diagram C of the moving slide cylinder 3 of the slide deck Ds and the elevating cylinder 16 of the elevating frame Fe. In the circuit diagram C, oil passages 74 and 75 connected to oil pressures a and b of the slide cylinder 3 are connected to a hydraulic pump 77 driven by a motor M via an electromagnetic switching valve 76 or an oil sump 78, and a lifting cylinder An oil passage 79 connected to the 16 oil chambers c is connected to a hydraulic pump 77 or an oil reservoir 78 via an electromagnetic direction control valve 81 and an electromagnetic switching valve 80.

In FIG. 11, 82 to 85 are relief valves, and 86 is an orifice.

In FIG. 11, if the electromagnetic switching valve 76 is switched to the right,
When the slide cylinder 3 is extended and switched to the left, the slide cylinder 3 is contracted. If the electromagnetic directional control valve 81 is switched to the left and the electromagnetic switching valve 80 is switched to the left, the lifting cylinder 16 is extended, and if the electromagnetic directional control valve 81 is switched to the right and the electromagnetic switching valve 80 is switched to the right, the oil chamber is changed. The pressure oil in c is returned to the oil reservoir 78 through the orifice 86, and the lifting cylinder 16 is gradually expanded and contracted by the weight of the lifting frame Fe and the lifting member 6.

 Next, the operation of this embodiment will be described.

First, referring mainly to FIGS. 12A to 12C, the cargo handling vehicle V
The procedure of unloading the cargo loaded on the loading platform A of the vehicle, that is, the pair of aircraft tires T to the ground will be described.
As shown in FIG. 12 (A), in a loaded state in which the slide deck Ds loaded with the pair of tires T is supported on the material A of the vehicle body B of the cargo handling vehicle V, as shown in FIGS. The lashing device L is turned down, and the connecting device J is released.
Is the slide cylinder 3 in the contracted state in the connected state.
The connecting member 4 at the tip is connected to the connector 52 of the connecting link mechanism 39. In this connection state, as shown clearly in FIGS. 3 and 4, the front surface of the slide deck Ds is on the stepped rising wall A ₁ of the vehicle body B.
A pair of nail pieces 4 _2, 4 ₂ of the inner surface of the connecting member 4 with abutting is abuts on one side of the coupling element 52, the slide deck Ds by abutment of said two locations at a predetermined position on the vehicle body B Firmly fixed. In this connection state, since the roller 63 at the tip of the bell crank 62 is engaged with one side surface of the connection member 4, the connection release holding mechanism 54 is in an inoperative state.

On the other hand, the elevating frame Fe is raised by the extension operation of the elevating cylinder 16, and its upper surface is held at the ascending position where it is flush with the upper surface of the carrier A of the vehicle body B.

Next, when the slide cylinder 3 is extended from the state shown in FIG. 12 (A), the slide deck Ds moves rearward and is transferred from the bed A to the lift frame Fe. At this time,
As shown in FIG. 6, the abutting piece 72 at the rear end of the slide deck Ds abuts the stopper 12 at the rear end of the elevating frame Fe, and the retreat position of the slide deck Ds is regulated. Use this to pull handle 43
In FIG. 12 (B), when the user operates the standing operation as shown by the arrow R, the pair of securing hooks 70, 70 rotate downward as shown in FIGS. It engages with the stoppers 13,13. As described above, the backward movement of the slide deck Ds is restricted by the abutment between the abutment pieces 72, 72 and the stoppers 12, 12, and the engagement between the securing hooks 70, 70 and the locked portions 13, 13 is prevented. In some cases, the forward movement of the slide deck Ds is restricted, and the slide deck Ds is firmly fixed on the lifting frame Fe.

According to the upright operation of the handle 43, the connecting rod 45 is pressed in the direction (X ') in FIG. 5, so that the connecting link mechanism 39 is released from the connection and the connector 52 is operated as described above.
Is rotated about 90 ° in the connecting member 4, and the connecting device L is in the fourth or fifth position.
It is automatically held in the disconnected state as shown in the figure.

Here, as shown in FIG. 12 (C), if the slide cylinder 3 is expanded and contracted, the connecting member 4 is disengaged from the connector 52 and retreats to the front of the vehicle V. This allows the bell crank 62
Since the leading end roller 63 is disengaged from the side surface of the connection member 4, the lock arm 56 of the connection release holding mechanism 54 is engaged with the lock pin 55 and is operated, whereby the connection device L is securely held in the connection release state. .

When the handle 43 is raised as described above, the slide deck Ds is firmly fixed on the elevating frame Fe, and at the same time, the connection between the slide cylinder 3 and the slide deck Ds is disconnected. In addition, the connection release holding mechanism 54 operates, and the connection device J is reliably held at the release position.

Next, if the lifting cylinder 16 is set in the free state, the tire T
, The slide deck Ds and the lifting frame Fe loaded with them are integrally lowered by their own weight and grounded on the ground, so that the tires T, T can be unloaded to the ground.

In order to load the tires T, T on the ground onto the carrier A of the cargo handling vehicle V, the operation reverse to that described above, that is, from FIG.
The operation of (A) may be performed.

In the above embodiment, the case where the cargo handling device of the present invention is mounted on a cargo handling vehicle has been described. However, this may be provided at another appropriate cargo handling location, for example, a platform.

In the above-described lifting device, the lifting frame is moved up and down along a substantially vertical guide column, but another lifting device such as a link-type lifting device may be used instead.

Further, in the above-described embodiment, the case where the hydraulic cylinder is used as the driving device of the slide deck and the elevating frame has been described, but it is needless to say that the driving thereof may be performed by another driving device.

Furthermore, as the connecting member and the connecting member that make up a set, any members may be used as long as their functions are not impaired.

C. Effects of the Invention As described above, according to the first aspect of the present invention, in the connecting device between the slide deck in the cargo handling device and the driving device, the driving device is provided with a connecting member that can advance and retreat with respect to the slide deck. On the other hand, the slide deck has a receiving portion that receives the connecting member, a connector that can be connected to and detached from the connecting member in the receiving portion, an operating portion that can be operated from the outside, and an operating force of the operating portion. Since the connecting link mechanism capable of transmitting the signal to the connector is provided, the connecting and disconnecting operations of the connecting device can be performed easily, reliably and safely from the outside of the carrier, and the efficiency of the cargo handling operation can be improved.

According to the second aspect of the present invention, in the connecting device, the driving device is provided with a connecting member that can move forward and backward with respect to the slide deck, while the sliding deck has a connecting member that can be connected to and detached from the connecting member. Provided, and further on the carrier,
A stepped rising wall is formed to abut the slide deck to regulate the forward movement of the slide deck, and the connecting member abuts the connector at the time of connection with the connector. Since a claw is formed to restrict the backward movement of the deck, the slide deck can be securely fastened to the loading platform by using the connecting device of the driving device and the slide deck. The cargo handling work can be efficiently, safely, and reliably performed without being moved or floating. In addition, since there is no need to separately provide a securing device for the slide deck on the carrier, the overall structure is simplified, and the weight and cost can be reduced.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention. FIG. 1 is a rear side view of a cargo handling vehicle provided with a cargo handling device of the present invention, FIG. 2 is a plan view thereof, and FIG. FIG. 4 is a cross-sectional plan view taken along the line III-III of FIG.
FIG. 4 is a sectional view taken along line IV-IV in FIG. 3, FIG. 5 is a cross-sectional plan view taken along line VV in FIG. 6, and FIG. 5, a sectional view taken along the line VI-VI of FIG. 5, FIG. 7 is a partial plan view of the slide deck showing an operation state of the connection release holding mechanism, FIG. 8 is an exploded perspective view of the slide deck and a carrier part of the cargo handling vehicle, FIG. 9 is an exploded perspective view of a lifting frame and a lifting mechanism, and FIG. 10 is a connecting device.
FIG. 11 is an exploded perspective view of a securing device and a connection release holding mechanism, FIG. 11 is a hydraulic circuit diagram of a slide cylinder and a lifting cylinder,
12 (A), (B) and (C) are rear side views of a cargo handling vehicle showing a cargo handling process of the device of the present invention. A: loading bed, A _1: stepped rising wall, Ds: slide deck, Fe ... elevating frame 3 ... slide cylinder as driving device, 4 ... connecting member, 4 ₂ ... claw piece, 38 ... Receiving part, 39 ... Linking link mechanism, 43 ... Handle as operating part, 52 ... Connector, 54
...... Connection release holding mechanism

Continued on the front page (72) Inventor Koji Iwatani 6-1-145 Koshienguchi, Nishinomiya City, Hyogo Prefecture Inside Far East Development Industry Co., Ltd. 72) Inventor Tatsuo Uchihara 824-2 Hagizono, Hagizono, Chigasaki City, Kanagawa Prefecture (56) References JP-A-63-219434 (JP, A) Japanese Utility Model Application Sho-58-174339 (JP, U)

Claims (3)

(57) [Claims] A slide deck (Ds) movably provided between a loading platform (A) and a lifting frame (Fe) provided on one side thereof, and a drive for driving the slide deck (Ds). A connection device with the device (3), wherein the drive device (3) is provided with a connection member (4) that can move forward and backward with respect to the slide deck (Ds), while the slide deck (Ds) includes: The receiving part (3) for receiving the connecting member (4)
8) connecting the connecting member (4) in the receiving portion (38);
A detachable connector (52), an operation unit (43) operable from outside, and a connection link mechanism (39) capable of transmitting an operation force of the operation unit (43) to the connector (52) are provided. A connecting device for a slide deck in a cargo handling device and a driving device thereof. 2. The connecting link of the slide deck (Ds) such that when the connecting member (4) is not present in the receiving portion (38), the connector (52) is held at a disconnecting position. A connecting device for connecting a slide deck in a cargo handling device and a drive device thereof in the cargo handling device according to claim 3, further comprising a connection release holding mechanism (54) for restraining the mechanism (39). 3. A connection between a slide deck (Ds) movably provided between a loading platform (A) and a lifting frame (Fe), and a driving device (3) for driving the slide deck (Ds). The driving device (3) is provided with a connecting member (4) that can move forward and backward with respect to the slide deck (Ds), while the sliding deck (Ds) is connected to the connecting member (4). A detachable connector (52) is provided, and the loading platform (A) is further provided with a stepped rising wall (A ₁ ) which abuts on the slide deck (Ds) and regulates the forward movement of the slide deck. Is formed on the connecting member (4). The connecting member (4) has a claw piece (11) that abuts with the connector (52) to restrict the backward movement of the slide deck (Ds) when the connector (52) is connected. 4 _2, 4 ₂₎ and the slide deck in the cargo apparatus, characterized in that is formed, driving its Coupling device with the device.