JPH0732167Y2 - Traction device in box-pallet carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a towing device for a box pallet transport vehicle for loading and transporting postal items and other various types of luggage.

(Prior Art) Conventionally, when a box pallet is towed by a carrier, a tow hook is mounted on the carrier, a connecting metal fitting is provided on the box pallet side, and the tow hook is engaged with the connecting metal. I was pulling a box pallet by a carrier.

(Problems to be Solved by the Invention) According to the above-mentioned conventional device, the box pallet must be provided with a connecting metal fitting for connecting with the transport vehicle, and a delicate driving operation of the transport vehicle is required during the coupling work. Therefore, a lot of time is required for the connection work.

Also, since the box pallet and the transport vehicle are connected via hooks and connecting fittings, a tightly integrated connection cannot be expected, and the box pallet easily swings at the connection part, and the path of the box pallet when the transport vehicle moves backwards. The direction cannot be determined.

Furthermore, unless the weight of the carrier vehicle is large, no load is applied to the drive wheels and the vehicle slips.

The present invention has been proposed in view of the above-mentioned problems of the prior art, and the object thereof is to connect the box pallet and the transport vehicle easily, quickly, and surely.
Another object of the present invention is to provide a towing device for a box pallet transport vehicle, which improves the vehicle steering performance of the box pallet transport vehicle in the box pallet linked state.

(Means for Solving the Problems) In order to achieve the above-mentioned object, a towing device for a box pallet transport vehicle according to the present invention is capable of moving back and forth along the center line of the box pallet truck at the rear of the truck. A box-shaped traction member support frame having an opened upper end surface mounted on a box pallet carrier provided, a guide member extending obliquely downward toward the box pallet side provided on the support frame,
A slide shifter including a cylinder having an upper end pivotally supported by the support frame and extending substantially parallel to the guide member, and a piston rod fitted to the lower end of the cylinder so as to be movable back and forth, and pivotally supported at the lower end of the piston rod. A box pallet pulling member in which a horizontal portion extending toward the box pallet side is continuously provided from the lower end of the upper tilted portion piece, and the guide member is provided on the upper sloped piece of the pulling member. A guide part that slidably fits is mounted,
A locking member that engages with and disengages from a horizontal frame member on the lower surface of the carriage of the box pallet is pivotally attached to a free end of the horizontal portion that projects the pulling member beyond the support frame via a pivot. At the same time, a torsion spring for urging the locking member so as to always rotate upward is mounted on the pivot.

(Operation) Since the present invention is configured as described above, if the center line of the box pallet carrier is aligned with the center line of the trolley of the box pallet and the carrier is moved to the box pallet side, the box pallet tow is pulled. The horizontal piece of the member sneaks into the lower part of the bogie of the box pallet.

In this state, when the slide shifter is driven to retract the rod into the cylinder of the shifter, the box pallet pulling member connected to the rod via the upper inclined portion piece is attached to the upper inclined portion piece of the same member. A locking member pivotally supported by the free end of the horizontal portion of the pallet pulling member is lifted up by using the provided guide portion and a guide member arranged in the pulling member guide frame of the transport vehicle. By a biasing force of a torsion spring arranged at the pivotal support portion of the box pallet, it is securely locked to the horizontal frame member at the end of the bogie of the box pallet.

Subsequently, the rod of the slide shifter is retracted into the cylinder, and the pulling member is moved up along the guide member.The lock member pulls the horizontal frame member of the box pallet toward the transport vehicle, The pallet is locked to the traction member while being lifted to one side thereof, so that the box pallet is integrally connected to the box pallet carrier.

Contrary to the previous case, the rod of the slide shifter is extended from the cylinder and the box pallet pulling member is lowered to disconnect the pulling member from the box pallet.

(Embodiment) The present invention will be described below with reference to the illustrated embodiment.

(A) is a box pallet carrier that is arranged at the rear of the box pallet (B) so that it can move back and forth along the center line of the box pallet (B).
A box-shaped traction member support frame (1) having an open upper end surface is mounted, and the support frame (1) has a rod-shaped inclined guide member (2) extending in an oblique direction toward the box pallet (B) side. )
Is provided.

(3) is a slide shifter whose hydraulic cylinder (3
An upper end of a) is pivotally supported (4) by the support frame (1), and a rod (3b) fitted in the cylinder (3a) so as to be movable back and forth.
A box pallet pulling member (5) is pivotally supported (6) at the lower end of the
Has been done.

In the figure, (7) is a drive device for the slide shifter (3).

The pulling member (5) is composed of an upper inclined portion piece (5a) and a lower horizontal portion piece (5b) directed toward the box pallet (B) side and protruding from the support frame (1). 5a)
A guide part (8) slidably fitted to the rod-shaped guide member (2) is mounted on the upper end of the horizontal part (5b). ) Is freely pivoted through an axis (10).

The lock member (9) is urged by a torsion spring (11) mounted on the pivot (10) so as to always project to the upper surface of the horizontal portion (5b).

In the figure, (12) is an adjusting tool for the torsion spring (11). (6th
(Refer to the drawing) (B) is a box pallet, in which a net-shaped peripheral frame (13) is erected in a traveling trolley shape, and if necessary, an opening / closing part for loading and unloading of luggage is provided in part of the peripheral frame (13).

Then, the box pallet carrier (A) is moved back along the center line of the box pallet (B) (see FIGS. 3 and 7) so that the back plate of the support frame (1) is the box pallet (B). The vehicle (A) is stopped at the place where it abuts against the vehicle. (See FIG. 8) At this time, the lower horizontal part (5b) of the box pallet towing member (5) in the carrier (A).
Enters below the trolley of the box pallet (B).

In this state, the slide shifter (3) is operated to retract the rod (3b) into the cylinder (a), and the pulling member (5) is moved to the inclined guide member (2) and the guide piece (8).
When it is lifted up as a guide (see FIG. 9), the locking member (9) at the tip of the horizontal part (5b) of the pulling member (5) causes the horizontal frame member at the end of the traveling carriage in the box pallet (B). Engage with (14). (See FIGS. 4 and 10) When the pulling member (5) is further raised, the box pallet (B) is transferred to the transport vehicle (A) via the locking member (9) and the horizontal frame member (14). ) Side, and one side thereof is lifted, so that it is firmly connected to the carrier (A). (See FIG. 5 and FIG. 11) On the contrary, by lowering the towing member (5) by operating the slide shifter (3), the lock between the carrier (A) and the box pallet (B) can be achieved. It will be canceled.

In this way, the box pallet (B) and the transport vehicle (A) are integrally locked via the pulling member (5), so that the forward and backward movements are reliably performed with the directionality determined. Box pallet (B) and carrier (A)
By locking and pushing and, after being put in a fixed position of the bed of the automobile in a narrow elevator, both of them can be unlocked, and only the carrier vehicle (A) can be easily taken out.

Furthermore, as described above, by lifting one side of the box pallet (B) via the pulling member (5) and connecting it to the transport vehicle (A), the own weight of the box pallet (B) is reduced. Therefore, the box pallet (B) can be easily moved without slipping even when the transport vehicle (A) is weighing.

(Effect of the Invention) According to the present invention, as described above, the box pallet truck is mounted on the traveling body of the box pallet carrier which is arranged rearward of the box pallet truck along the center line of the box pallet. The upper end of the slide-shifter cylinder is pivotally supported by a box-shaped traction member support frame whose upper end surface is open.The rod is mounted in the cylinder so that it can move back and forth. A box pallet pulling member consisting of a horizontal piece mounted with a locking member that extends and extends in a horizontal direction at the rear end of the trolley and is attached to the horizontal frame material is connected to the inclined frame piece and the support frame. A state in which a box pallet is lifted on one side by the traction member by mounting a guide portion piece slidably fitted on a guide member that extends obliquely toward the lower front In front The transport vehicle is locked and the transport vehicle and the box pallet are integrally connected. Therefore, the transport vehicle moves forward and backward reliably with the box pallet connected, and puts the box pallet in a narrow elevator or at a fixed position of the car carrier, unlocks both of them, and takes out only the transport vehicle. be able to.

Further, as described above, when the box pallet and the transport vehicle are connected, one side of the box pallet is locked in a lifted state, and the weight of the box pallet is added to the transport vehicle. The box pallet can be easily moved without causing any trouble.

Furthermore, according to the present invention, the box pallet can be used without providing a special connecting device.

[Brief description of drawings]

FIG. 1 and FIG. 2 are side views and partially cutaway perspective views showing an embodiment of a traction device in a box pallet carrier according to the present invention, and FIG. 3 and FIG. The figures show before connecting the box pallets and when starting the connecting work, respectively.
Along with this, a vertical cross-sectional view showing a state at the time of starting the connecting work, FIG. 6 is a vertical cross-sectional view showing the locking member attaching portion, and FIGS. 7 to 11 are explanatory views showing the box pallet connecting step. (A) …… Transport vehicle, (B) …… Box pallet,
(1) ... traction member support frame, (2) ... guide member,
(3) …… Slide shifter, (3a) …… Cylinder,
(3b) …… Piston, (4) …… Pivot part, (5) …… Box pallet pulling member, (5a) …… Upper sloped piece,
(5b) …… Lower horizontal part, (6) …… Pivot, (7)…
… Slide shifter drive device (8) …… Guide part, (9) …… Locking member, (10) …… Axis, (11) ……
Torsion spring, (12) …… Torsion spring adjustment tool.

Claims (1)

[Scope of utility model registration request] 1. A box with an open upper end mounted on a box pallet carrier (A) which is arranged at the rear of a pallet of a box pallet (B) so as to be movable back and forth along the center line of the pallet. Type traction member support frame (1), guide member (2) extending obliquely downward toward the box pallet (B) side disposed on the support frame (1), upper end portion of the support frame (1) A slide shifter (3) including a cylinder (3a) that is pivotally supported and extends substantially parallel to the guide member (2), and a piston rod (3b) that is fitted to the lower end of the cylinder (3a) so as to be movable back and forth. , A pivotal support (6) at the lower end of the piston rod (3b)
A box pallet pulling member (5) in which a horizontal portion (5b) extending toward the box pallet (B) side is continuously provided from the lower end of the upper inclined portion piece (5a) formed, is provided with the pulling member (5). A guide portion piece (8) slidably fitted to the guide member (2) is mounted on the upper inclined portion piece (5a) in 5), and the pulling of the horizontal portion piece (5b) is performed. A locking member (9) that engages and disengages with a horizontal frame member (14) on the lower surface of the trolley of the box pallet (B) is provided at a free end portion of the member that projects beyond the support frame (1). And a torsion spring (11) for urging the locking member (9) so as to always rotate upward. A traction device for a box pallet carrier.