JPH04129848A - Load-carrying platform for loading vehicle - Google Patents

Abstract

PURPOSE:To control a vehicle gangboard without the exhaustion of physical strength by internally inserting telescopic devices in the first device of a vehicle gangboard, inserting a telescopic cylinder and a telescopic rod in a first cylinder, and fitting the tip of the final telescopic rod to the final telescopic device. CONSTITUTION:An axis piece 9 in a width direction is provided on the rear end of a load-carrying platform, the rod 13 of a derricking cylinder 12, oscillatingly supported with a chassis 1, etc., is linked to an arm member 10 protruded from the axis piece 9 or the member 8 inserted in the axis piece 9, and telescopic devices 16 and 17 are internally inserted in the first device 15 of a vehicle gangboard 15a derricking together with the axis piece 9 or the member 8 inserted in the axis piece 9. The vehicle gangboard 15a is made to have constitution in which a telescopic cylinder 21 and a telescopic rod 25, having same number as the telescopic devices 16 and 17, approximately the same length as their length, and making a rod action, are inserted in a first cylinder 18 whose base end is fixed to the first device 15 and whose length is made approximately same as the first device 15; and the tip of the final telescopic rod 25 is fitted to the final telescopic device 17.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a vehicle loading platform for loading and transporting a vehicle such as an excavator that travels slowly or is prohibited from driving on roads, and in particular, The structure uses fluid pressure to expand and contract the vehicle road board necessary for loading and unloading operations.
This allows even female employees to easily operate the vehicle.

(Prior Art) A loading platform for loading a vehicle is provided on the loading platform of a trailer or a truck. For example, a vehicle road board C provided on the loading platform of trailer a in FIG. 10 is manually raised and lowered at the rear of the loading platform. When transporting a construction vehicle d such as a shovel car that is movably installed and loaded on the loading platform through urban areas, the vehicle road board C is erected diagonally forward along the solid line and the loading platform bj, :$ 9 fixed cars, 11 cars for construction
When loading and unloading, the vehicle road board C is tilted backwards as shown by the chain line, and the loading platform is used by a hydraulic jack.
The construction vehicle d is guided to the loading platform bJ: or from the loading platform to the ground by placing the rear end of the vehicle road board C on the ground together with or alone. However, as mentioned above, when driving in urban areas, etc., if the vehicle road board C is left upright diagonally in front as shown in the figure, there is a danger that telephone lines etc. may get caught, so the configuration is such that it is manually folded back about three times. However, the work of raising and lowering the vehicle road board C or folding it is not intended for female employees who are unable to do heavy lifting.

However, since it is not possible to make girls do the same work as boys, some kind of countermeasure must be taken.

(Problems to be Solved by the Present Invention) The present invention mainly takes measures to accommodate female workers, and aims to make the vehicle road board expandable and contractible using fluid pressure so that it can be controlled without wasting physical strength. As a challenge,
This is the purpose.

(Means for Solving the Problems) A first aspect of the vehicle loading platform of the present invention is that an axle in the middle direction is provided at the rear of the platform, and an arm member protrudes from the axle or a member fitted to the axle. A rod of a cylinder for raising and lowering supported swingably on a chassis or the like is connected to the first device of the vehicle road board which raises and lowers together with the shaft or the above-mentioned member fitted to the shaft. A first cylinder having a proximal end fixed to the first device and having approximately the same length as the distal end of the first device has the same number of telescopic devices as the telescopic device, and a distal end of the telescopic device. This relates to a loading platform for loading a vehicle, characterized in that several telescopic cylinders or telescopic rods are fitted into the rod of approximately the same length, and the tip of the final telescopic rod is attached to the final telescopic device. . A second aspect of the present invention relates to a vehicle loading platform according to claim 1, characterized in that one to several telescoping devices are replaced by two telescoping devices that are sequentially fitted into the first device of the vehicle road board. The f53 invention relates to a loading platform for loading a vehicle according to claim 1, characterized in that the loading platform is applied to a loading platform of a trailer connected to a towing vehicle. A fourth invention relates to a loading platform for loading a vehicle according to claim 1, characterized in that the loading platform is applied to a loading platform of a truck or a loading platform of a truck that enables rearward dumping. A fifth invention relates to the loading platform for loading a vehicle according to claims 1) to 4), characterized in that a hydraulic jack is provided at the lower end of the loading platform to timely lift the front end of the loading platform. .

(Example) Figures 1 to 6 show examples in which the present invention is applied to the loading platform of a trailer connected to a towing vehicle. , a trailer T1 with support brackets 4 for wheels 3 suspended at the rear end so as to be able to swing relative to each other.
This chassis has a rear end slightly tilted downward, a low-floor loading platform 5 is provided at the rear of the connecting arm 2 and the suspension part of the support bracket 4, and the rear end of the chassis 1 is open at the rear. The piece 6 is fixed, a shaft support plate 7 that projects rearward is provided between both sides of the frame piece, and a member 8 having a rectangular cross section in the middle direction of the loading platform 5 is arranged between the frame halo and the shaft support plate 7. , a shaft element 9 integral with the member 8
are fitted into both sides of the frame piece 6 and the shaft support plate 7 so that they can rotate freely. (The shaft element 9 fitted to the shaft support piece 7 is not shown.) An arm member 10 protruding at right angles from a member 8 having a rectangular cross section is attached to a mounting piece 11 that constitutes a part of the chassis 1 or the frame piece 6 so as to be swingable. Supported undulating cylinder 12
The rods 13 of are connected.

An inverted U-shaped connecting plate 14 is fitted into and removed from the member 8, and a receptacle is freely fitted and fixed, and a vehicle stand plate 15aI7) that moves up and down together with the member 8 is attached to each of the connecting plates 14. t5
1 device 15 is fixed. The first device 15 has a planar shape,
One to several telescoping devices 16, 17 are fitted into this one after another. There are two pieces shown in Figure 2.5.6, and the first
115 and telescoping devices 16 and 17 are approximately the same quality.

A base piece 19 of a first cylinder 18 is fixed to the first device 15 at its base end in contact with the connecting plate 14 . ! 51=8- The cylinder 18 has approximately the same length as the first device 15, and is provided with a stopper 20 bent inward at right angles at its tip. A rod-acting second telescopic cylinder 21 having approximately the same length as the telescopic device 16 is fitted into the first cylinder 18 . The second telescopic cylinder 21 is provided with a bottom plate 22 that can be engaged with the stopper 20 described above at the base that is fitted into the first cylinder 18,
A communication hole 23 is provided at the center of the bottom plate 22, and a stopper 24 bent inward at right angles is provided at the tip.

Further, in the telescopic device 17, a telescopic rod 25 having approximately the same length as the device 17 is fitted into the second telescopic cylinder 21 so that the flange plate 26 at the proximal end can be engaged with the stopper 24 of the second cylinder 21. The tip of the rod 25 is attached to the spanning plate 17a at the tip of the telescoping device 17.

The device described above is for trailer T1, but this device can also be installed in truck T2, which has a loading platform 33 at the rear of the driver's cab 32 at the front of the chassis 31, as shown in FIGS. 7 to 9. It comes out. In the case of , 2, a pair of shaft support plates 7a are fixed on both sides of the rear end of the loading platform 33, and the shaft 9 of the loading platform 33 in the [j direction] is supported by being passed between the shaft supporting plates 7a.
A member 8 having a rectangular cross section is integrally formed on the shaft 9, and an arm member 10 protrudes from the end of the RITF member 8.8, and is swingably supported at an appropriate position on the rear lower surface of the chassis 31. The rod 13 of the cylinder 12 for the arm member 10
The loading platform 33 is connected to the driver's cab 32 and the loading platform 33 immediately behind the front middle wheel.
At the front end of the
A body pressure cylinder 34 (possibly one or more supported) is equipped in a known manner.

(Function) To explain the function of each vehicle road board 15a of the vehicle loading trailer T1 shown in FIGS. 1 to 6 and the vehicle loading truck T2 shown in FIGS. When the first device 15 is turned backward and downward by the operation of the cylinder 12 and pressure fluid is sent into the first cylinder 18, the second telescoping cylinder 21 and the telescoping device 16 are expanded and the pressure fluid is released from the communication hole 23. The second telescopic cylinder 21 is entered, the telescopic rod 25 and the telescopic device 17 connected thereto are extended, and the length of each extension is adjusted by adjusting the amount of pressure fluid sent with a valve or the like depending on the topography, and then the telescopic rod 25 and the telescopic device 17 connected thereto are extended. At T2, the rod 35 of the hydraulic cylinder 34 is further extended to tilt the loading platform 33 rearward, and the expansion/contraction device 17 of the vehicle road board 15a is placed on the ground to load or unload the loading vehicle.

Figure 1 (Figure 2, etc.) and Figure 7 (Figure 8) of the vehicle road board 15a
The raising of the figure) is carried out by the raising and lowering cylinder 12, but the expansion and contraction devices 17 and 16 contract due to their own weight at the same time as the raising and lowering.
Just check that.

(Effects) The first aspect of the present invention is to provide an axle in the width direction at the rear of the loading platform, and to swingably support the arm member protruding from the axle or a member fitted to the axle on the chassis or the like. 1 to a first device of a vehicle road board which connects the rod of the undulating cylinder and which moves up and down together with the axle or the above-mentioned member fitted to the axle;
~ Several telescopic devices are fitted inside, and the proximal end is fixed to the @i device and the length is approximately the same as the distal end of the first device. It consists of fitting one to several telescopic cylinders or telescopic rods 1t with rod action of approximately the same length as the end of the device, and attaching the end of the final telescopic rod to the final telescopic device. It is a structure that controls the expansion of one to several expansion and contraction devices fitted in the ml device of the vehicle road board by fluid pressure without relying on human power, and the vehicle road board of the Jl1 car loading platform is controlled by the flow valve pressure. The ability to expand and contract is unprecedented, and even unskilled women can handle it with a little skill, which has the effect of encouraging the introduction of female employees.

The second invention is characterized in that the one to several telescoping devices that are sequentially fitted into the first device of the vehicle road board in the first invention are replaced by two telescoping devices. It can be configured with a device that prevents telephone lines from getting caught when driving in urban areas, etc.
Moreover, since the two expansion and contraction devices do not require bulk, there is an advantage that manufacturing can be facilitated.

The third invention is characterized in that the first invention is applied to a trailer connected to a towing vehicle, and the effect that the fluid pressure controlled vehicle loading platform of the first invention can be provided on the trailer is achieved. be.

A fourth invention is characterized in that the first invention is applied to a truck bed or a truck bed that enables rearward dumping, and the fluid pressure controlled vehicle loading bed of the first invention is applied to a truck. This has the effect of making it possible to provide

The fifth invention is characterized in that it is also provided with a fluid pressure jack that lands on the lower end of the rod and lifts the front end of the loading platform in a timely manner. There is an effect that can be achieved through cooperation between the two parties.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment in which the present invention is applied to a trailer T1, and Figures 7 to 9 show an embodiment in which the invention is applied to a truck T2. The figure is an enlarged partially cutaway side view, Figure 3 is a rear view, Figure 4 is a plan view of the rear part, Figure 5 is a longitudinal side view of the vehicle in an expanded and contracted form, and Figure 6
The figure is a longitudinal sectional side view of the same extended state. Figure 7 is a side view;
FIG. 8 is an enlarged partially cutaway side view, and FIG. 9 is a partially cutaway side view, which is the same as FIG. 6. FIG. 10 is a side view showing an example of a conventional vehicle loading platform. T, → Vehicle loading trailer T2 → Vehicle loading truck 1 → Chassis 2 → Connecting arm 3 → Wheel 4 → Support bracket 15 → Loading platform 6 → Frame piece 7.7a → Axle support plate 8 → Square cross-section member 9 → Axis element 10 → arm member
11→Take A] Piece 12→Luffing cylinder 13→Rod 14→Downward U-shaped connecting plate 15a→Vehicle road board 15→First
Device 16.17 → Expanding device 17a-+ Spanning board 18
→ First cylinder 19 → Base piece 20 → Stopper 21 → Second telescoping cylinder 22 → Bottom plate 23 → Communication hole 24 → Stopper 25 → Telescoping rod 26 → Flange plate 31 → Chassis 32 → Cab 33 → Loading platform 34 → Fluid pressure cylinder 35 → rod

Claims (1)

[Scope of Claims] 1) A levitation cylinder provided with an axle in the width direction at the rear of the loading platform, and swingably supported on a chassis or the like by an arm member protruding from the axle or a member fitted to the axle. one to several telescopic devices are fitted inside the first device of the vehicle road board that moves up and down together with the shaft or the member fitted to the shaft; A first cylinder whose proximal end is fixed to the device and whose length is approximately the same as the distal end of the first device is provided with one to several rod-acting rods having the same number and length as the telescoping device. A loading platform for loading a vehicle, characterized in that a telescoping cylinder or telescoping rod is fitted, and the tip of the final telescoping rod is attached to a final telescoping device. 2) Claim 1) characterized in that the number of expansion and contraction devices that are sequentially fitted into the first device of the vehicle road board is reduced to two.
The listed vehicle loading platform. 3) The loading platform for loading a vehicle according to claim 1), which is applied to the loading platform of a trailer connected to a towing vehicle. 4) The loading platform for loading a vehicle according to claim 1), which is applied to a loading platform of a truck or a loading platform of a truck that enables rearward dumping. 5) The vehicle loading platform according to claims 1) to 4), further comprising a hydraulic jack for timely lifting the front end of the platform whose lower end has landed.