JPS6238425Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tailgate securing device for a tailgate lifter.

Conventionally, a cargo truck or a van truck with a tailgate lifter installed thereon is known, and the tailgate is secured in an upright and retracted state via a securing device during driving.

By the way, this lashing device only uses the weight of the tailgate to prevent it from rotating downward to the working position, and cannot prevent it from jumping up.

In other words, since the tailgate is only suspended by a lift wire, when the vehicle lifts up while the vehicle is running, the tailgate follows the bounce and slides within the support via the lift column.
There was a problem in that the impact load acted on the wires, lashing devices, etc. and damaged these parts.

The present invention has been made in view of the above problem, and provides a tailgate lashing device for a tailgate lifter that can prevent the tailgate from jumping up during driving with a simple configuration.

Hereinafter, an embodiment of the present invention will be described in detail based on the drawings. At the rear end of the cargo box 1, a pair of supports 2, 2 are provided.
is erected, and a cross member 3 is installed below the pair of support columns 2, 2, located below the floor surface of the cargo box. Inside this cross member 3 is a hydraulic cylinder 4 as a means for lifting and lowering a tailgate 9, which will be described later.
is located.

By the way, there are an appropriate number of rollers 5 inside the support 2.
An elevating column 6 guided and supported by is fitted so as to be movable up and down, and a bracket 8 is fixed to the lower part of the elevating column 6 via a stay 7. A tailgate 9 is rotatably attached to the bracket 8, and the lower end of the tailgate 9 comes into contact with the lower end of the above-mentioned lifting column 6 during cargo handling operations.

Note that 10 is a pulley pivotally supported within the support column 2, and one end of which is connected to a wire 1 fixed to the lifting column 6.
After the pulley 10 is suspended, the other end of the guide pulley 12 is fixed to the cross member 3 via a guide pulley 12 which is pivotally supported by the end of the cross member 3 and the piston rod of the hydraulic cylinder 4, respectively.

Therefore, as the hydraulic cylinder 4 expands and contracts, the tailgate 9 can be raised and lowered via the lifting column 6.

Further, the support column 2 and the tailgate 9 are provided with a securing device 13 that secures the tailgate 9 in an upright state when the vehicle is running.

This lashing device 13 includes a lashing stopper 14 provided on the pillar 2 side, and an arm 15 provided on the tailgate 9 that can be freely pulled out to the side and rotated.
It is composed of.

The lashing stopper 14 is rotatably mounted around a boss 17 fixed to the upper part of the column 2 via a base 16, and has an abutment part 14a formed inside and a groove part 14b formed on the front side. has been done.

Therefore, when the lashing stopper 14 rotates backward, the groove 14 formed in the lashing stopper 14
b and the arm 15 can be engaged or disengaged.

Furthermore, a lashing member 18 is provided on the lifting column 6 side.
As shown in FIGS. 4 and 5, the lashing stopper 14 is fixed to the lifting column 6 and bent outward, and the lashing stopper 14 is moved around the boss 17 from the storage position along the column 2. When rotated 180 degrees backward, the securing member 18 comes into contact with the contact portion 14a.

Therefore, when using the tailgate lifter of the present invention, arm 15 is fixed by rotating it approximately 180 degrees to stand up from the traveling storage state shown in FIGS. 1 and 2, and then pushing it inward. Bound stopper 14
The groove 14b is formed in the groove 14b.

As a result, the tailgate 9 rotates about the pivotal portion with the bracket 8 and is fixed at a position substantially flush with the floor surface of the cargo box. Next, when the hydraulic cylinder 4 is contracted, the tailgate 9 is lowered via the wire 11.

Next, the tailgate 9 is raised and lowered between the ground and the cargo box floor by the telescopic operation of the hydraulic cylinder 4.
Perform cargo handling work.

When the cargo handling work is completed, the tailgate 9 is rotated upright around the pivot point with the bracket 8, and at the same time, the lashing stopper 14 is rotated approximately 180 degrees rearward, and the arm 15 is removed from the groove 14b. The tailgate 9 is held in an upright position by pulling it out toward the side, engaging it, and rotating it down.

In this case, the lashing stopper 14 is also attached to the tailgate 9.
It will be fixed in the rear extended position via the arm 15, and the abutment portion 14a formed thereon will come into contact with the lashing member 18.

Therefore, the lifting column 6 is prevented from moving upward with respect to the support column 2, and the tailgate 9 can be prevented from jumping up.

In this embodiment, the case where there is only one elevating column 6 has been described, but a plurality of elevating columns 6 may be fitted into the support column 2. In that case, the tailgate 9 is rotated to the innermost elevating column. It can be pivoted freely.

Further, although the lashing member 18 is provided on the elevating column 6, it may be provided on the tailgate 9 connected to the elevating column 6.

As described above, in the present invention, when the tailgate is closed and stored, the tailgate and the lifting column can be secured by the abutment part of the lashing stopper and the lashing member provided between the strut and the tailgate or the lifting column. This prevents the tailgate from jumping up and securely secures the tailgate without damaging the wire or the securing stopper.

[Brief explanation of the drawing]

The drawings illustrate the embodiments of the present invention.
The figure is a partial rear view showing the tailgate lifter of the present invention in its retracted state, FIG. 2 is a side view thereof, FIG. 4 and 5 are a plan view and a side view of the lashing device. 2... Strut, 6... Lifting column, 9... Tail gate, 13... Lagging device, 14... Lagging stopper, 15... Arm, 18... Lagging member.

Claims (1)

[Scope of utility model registration request] A column is erected at the rear end of the cargo box mounted on the vehicle body, one or more elevating columns are disposed within the column so that it can be raised and lowered as appropriate, and a tailgate is pivoted at the lower end of the elevating column so that the tailgate can be opened and closed. In the attached tailgate lifter, a lashing stopper in which a groove is formed is rotatably provided on the support column, and a lashing stopper that can be freely pulled out laterally and rotated in correspondence with the groove of the lashing stopper is provided on the tailgate. A movable arm is provided, and the lashing stopper has an abutting part, and the elevating column or tailgate has a lashing member corresponding to the abutting part, and when the tailgate is closed, A tailgate securing device for a tailgate lifter, characterized in that the tailgate is configured to be secured in an upright position.