JPS5855077Y2 - Load collapse prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo collapse prevention device for preventing cargo stacked on a loading platform such as an L-rack from collapsing.

When loading cargo onto the bed of an open truck higher than the height of the side panels, it is necessary to use ropes to prevent the cargo from collapsing, but unless you are a transporter or warehouse operator, you cannot easily hang ropes. If this is done by other amateurs, the cargo often collapses while the truck is running.

On the other hand, rope hanging is a troublesome task for transport companies and warehouse operators, and often takes a considerable amount of time.

The purpose of this invention is to provide a novel cargo collapse prevention device that can prevent cargo from collapsing without the need for ropes even when cargo is loaded higher than the height of the side panels of an open truck without a roof or other equipment. It is to be.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of an open truck equipped with a cargo collapse prevention device according to the present invention.

As shown in FIG. 1, the device of the present invention consists of four extensible columns 1 attached to the four corners of a loading platform, an upper beam member 2 spanning between the columns 1, and a top beam member 2 attached to the columns 1 at both ends. Its main parts include a cross beam member 3 which is removably locked.

Each column 1 is supported by a column support device 4 attached to the top of the loading platform, so that the two front columns can be folded down only towards the rear, and the two rear columns can be folded only towards the front. , each supported.

As shown in FIG. 2, each column 1 has a sleeve-shaped column main body 11 and a rod-shaped column tip 12 that is inserted and fixed at the tip of the main body 11. As shown in FIG.

A split-type threaded snub IIA is fixed to the upper end of the column main body 11, and an oak 11B is fitted into the outer threaded part of the threaded sleeve IIA.

The threaded sleeve IIA has an axially extending crack 11 a
It is divided into two parts by the crack 11a.

When fixing the rod-shaped strut tip 12 to the tip of the strut main body 11, insert the strut tip 12 into the tie sleeve IIA by an appropriate length, and then insert the oak l-11B into the tie sleeve IIA. When screwed in, the screw sleeve 11A contracts in diameter and the column tip 12 is firmly gripped by the screw sleeve IIA.

A coil spring 11C is housed inside the column main body 11, and a disc-shaped seat 11D is attached to the upper end of the coil spring 11C.

This seat 11D receives the lower end of the column tip 12 inserted into the column main body 11. Therefore, when the column tip 12 is inserted into the column main body 11, the column tip 12 is received. It always receives an upward force from the coil spring 11C via the seat 1iD.

Therefore, when the nut 11B is loosened, the tip of the column 12
The gripping force of the spring sleeve 11A is weakened, and the column tip 12 is naturally pushed out of the column main body 11 by the force of the coil spring 11C.
Oak when the protrusion length of 2 becomes an appropriate length) 11 B
By tightening, the length of the support column 1 can be easily changed.

A tongue piece 11E is provided to protrude from the lower end of the support main body portion 11, and a pin 11F is provided to protrude from the outer circumferential surface above the tongue piece 11E.

The tongue piece 11E is a part that is pivotally attached to the post support device 4, which will be described later, and is provided with a bottle hole 11e.

Further, a stepped portion is provided at the tip of the column tip portion 12,
A small diameter portion 12a is provided at the tip of this stepped portion, and a projection 12b for preventing removal is provided at the outer periphery of the lower end.

As shown in the lower part of FIG. 2, the column support device 4 includes a support part 41 for supporting the column main body 11, and a base plate 4 which is pivotally connected to the support part 41 so that the column main body 11 can be brought down.
It is separated from 2.

The support part 41 is made of an elastically deformable material,
As shown in FIGS. 2 to 4, it has a pair of side plate portions 41A extending parallel to the vertical direction, and an end plate portion 41B perpendicular to the side plate portions 41A,
As a whole grain, it has a shape like a channel steel (1-shaped surface shape or C).

The horizontal distance between the pair of opposing side plate portions 41A is greater than the outer diameter of the column main body portion 11, and therefore the side plate portions 41
The support main body portion 11 can be accommodated between the spaces A.

As shown in FIG. 4, the inner wall surface of both side plate portions 41A is provided with a recess 41a for receiving a pin 11F (see FIGS. 2 and 3) protruding from the support main body 11. Further, a bottle hole 411) that coincides with the column hole 11e of the column main body is provided near the lower end of the side plate portion 41A.

Since the support part 41 is made of an elastically deformable material as described above, the support part 41 and the support part 41
When combining the two side plates 41 of the support section 41,
A by hand in opposite directions, and at the same time push the column main body 11 between the side plates, so that the protruding pin 11F of the column main body 11 is engaged with the recess 41a of the side plate 41A. All you have to do is match it.

As shown in FIGS. 2 to 4, the base plate 42 of the column support device 4 has a pair of parallel bearing portions 42A, and a stopper portion 42B disposed perpendicularly to the bearing portions 42A. have.

The bearing portion 42A is provided with a pin hole 42a that coincides with the pin hole 11e of the support body portion 11 and the pin hole 41b of the support portion 41, and a single pin common to each of the pin holes is provided. By inserting the pin (see FIG. 5), the support body 11 and the support portion 41 are connected to the substrate 4 through the pin.
It is designed to be pivoted to 2.

The stopper portion 42B provided on the substrate 42 is connected to the hanging portion 41C provided on the end plate portion 41B of the support portion 41.
(See Figure 4).
2 When part 41 C collided with B from the left, part 4
1C is constructed such that the movement of the pin P is prevented by the portion 42B, and therefore the support body 11 is configured such that the movement of the pin P is prevented only between the solid line position and the two-dot chain line position, as shown in FIG.
It can be rotated around.

(Figure 5 shows the movable range of the strut attached to the rear of the 1-rack loading platform, but the movable range of the strut attached to the front of the loading platform is the opposite. (In other words, the front column can only be moved backwards.) Figure 6 shows the column 1 and the upper beam member 2 extending over its upper end.
This shows an example of a bonding structure with.

In the illustrated embodiment, the upper beam member 2 is constructed by bending both ends of a tube at right angles.''The upper beam member 2 is composed of a beam body 21 and a sleeve-shaped portion 22 covering the outer periphery of the horizontal portion of the upper beam body 21. ing.

The upper beam main body 21 has an inner diameter that is the same as the small diameter portion 12 a of the tip of the column, and an outer diameter that is equal to the outer diameter of the tip portion 12 of the column. 12a by fitting it into the support column 1.
It can be combined with

The part 22 is a part to prevent damage to the cargo stacked on the truck bed even if it collides with the cargo, and is made of a soft material such as urethane foam. In order to make it easier to apply, it may be configured to be able to rotate relative to the upper beam main body 21.

FIG. 7 shows a structure for attaching the crossbeam member 3 to the support column 1.

The crossbeam member 3 is a member to prevent the cargo stacked on the loading platform from falling, and has a long main body 31 with a box-shaped cross section.
and locking devices 32 attached to both ends of the main body 31.

As shown in FIG. 7, the locking device 32 has a hook-shaped portion 32a at the tip, an arm 32A attached to the main body 31 so as to be able to move slightly in the axial direction, and a pin attached to the arm 32A. A lever 32B pivotally connected via p1 and the lever 3
2B, and the latch 32C is hooked onto a protrusion 31a protruding near the end of the main body 31.

When attaching the crossbeam member 3 to the support column 1, first press the lever 32.
Rotate B to the right and attach the latch 32C to the protrusion 31 of the main body 31.
a, and at the same time, the hook-shaped portion 32a at the tip of the arm 32A is engaged with the outer periphery of the tip end portion 12 as shown by the two-dot chain line in the figure.

Next, when the lever 32B is rotated to the left as shown in the lower part of FIG.
In other words, the main body 31 is also pulled to the left.

Therefore, tension is applied outward to both ends of the main body 31, but as a reaction force, the arm 32A receives an inward force from the main body 31 (that is, rightward in FIG. 7), so the tip of the arm 32A The hook-shaped portion 32a is securely locked to the outer periphery of the column tip 12.

When using the load collapse prevention device according to the present invention as described above, first, each column main body 11 is raised upright from the collapsed position shown by the two-dot chain line in FIG. The height of each support column 1 is adjusted to the height of the cargo by tightening the oak l-11B.

Next, the upper beam member 2 is fitted into the upper end of each support column 1, and the crossbeam member 3 is then locked to the support tip end 12 in the manner described above in accordance with the height of the cargo.

Conversely, when not in use, the upper beam member 2. After removing the crossbeam member 3 from the strut 1 and further pushing the strut tip 12 into the strut body 11 and storing it, either the strut body 11 is laid down as described above, or the strut body 11 is may also be removed from the column support device 4.

As described above, according to the present invention, even when cargo is piled high on the platform of a truck, there is no need to hang it with ropes.
In addition, a cargo collapse prevention device is provided that can be easily removed when not in use.

The illustrated embodiment shows only one example of the upper beam member and the cross beam member, but the shape of the upper beam member and the cross beam member is within the scope of the utility model registration claim of the present invention. For example, the center part of the upper beam member or the crossbeam member may be formed in the shape of a bar or a lattice, or a material other than metal may be used as the material.

Further, although only one example of the strut is shown in the embodiment of the present invention, other types of telescoping struts may also be implemented in the present invention; for example, the strut may be of a telescopic type. The configuration also belongs to the present invention.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a truck equipped with a cargo collapse prevention device according to the present invention, and Fig. 2 shows a structural part of a column of the cargo collapse prevention device shown in Fig. 1 and a column support device for supporting the column. 3 to 5 are diagrams illustrating the coupling relationship between the column main body and the column support device and their functions, and FIG. 6 is a diagram showing the coupling relationship between the column tip and the upper beam member. The figure shown in FIG. 7 is a diagram showing the locking relationship between the support column and the cross beam member. 1: Strut, 11: Strut main body, 12: Strut tip, 2:
Upper beam member, 3: crossbeam member, 32: locking device, 4: column support device.

Claims (1)

[Scope of utility model registration request] Four pillars are removably erected upright at the four corners of the loading platform of a truck, etc., and are expandable and retractable in the axial direction, and two of the four pillars are positioned in front of the loading platform. four pillar support devices that support each of the two pillars located at the rear of the loading platform so that they can be brought down only toward the front;
an upper beam member that spans between the columns and has both ends removably supported at the upper end of the columns, and a locking device that is detachably locked to the outer periphery of the columns at both ends; A cargo collapse prevention device consisting of a crossbeam member extending from one side to the other.