JPH0415712Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an apparatus for preventing collapse of cargo when stacking and transporting rolls such as web rolls manufactured in a paper mill.

[Conventional technology]

Continuous paper produced in paper mills is usually wound into rolls and transported in this state to processing plants and printing plants. When these paper rolls are transported by truck, for example, the first paper rolls are arranged in two rows on a loading platform, and the second paper rolls are stacked alternately by dropping them into valley-shaped recesses between adjacent rolls. To prevent rotational movement on the loading platform, each paper roll is packed tightly against the front wall of the loading platform, and a wooden wedge-shaped stopper is inserted between the roll and the loading surface at the rear of the rearmost paper roll in the first stage.
A tension member such as a rope or wire was hung on the rear portion of the vehicle to secure it to the cargo platform.

[Problem that the invention attempts to solve]

However, as described above, in the conventional cargo collapse prevention device in which a wedge-shaped stopper is fixed using a tension member such as a wire or rope, the tension member is used to secure a large weight (for example, 1 to 3 tons/piece) paper roll during transportation. It expands and contracts in response to the inertial force of. At this time. When the wedge-shaped stopper retreats, the stopper becomes ineffective, the rolls easily collapse, and each web roll rattles, causing scratches on the contact surfaces.

Furthermore, the tension member is easily pulled and broken by the inertia of the rolls on the loading platform, and it is therefore extremely dangerous if the load collapses.

[Means for solving problems]

In order to solve the above problems, this invention includes a wedge-shaped stopper that is inserted toward the contact point of a roll placed on a loading platform with side walls, and a wedge-shaped stopper that is inserted into the gap between this stopper and the side wall of the loading platform. It is combined with a horizontal jack with circularly curved ends on both ends to prevent backward movement.

[Effect]

According to this invention, for example, multiple paper rolls are stacked on the packing floor of a truck and installed in the gap between the rearmost paper roll of the first stage and the packing rear wall (see Figure 4).
If the jack is used to open and tighten this, the wedge-shaped stopper will not move back even if it is subjected to vibrations during transportation, and the roll will not collapse.

Since both end surfaces of the horizontal jack are formed into circular curves, external forces acting on the jack body from the side wall of the loading platform or the rear end of the stopper can be appropriately prevented from acting in the bending or twisting direction. , the jack body is not easily damaged, and this product can be used safely.

〔Example〕

1 to 4 show an embodiment of this invention. The roll collapse prevention device of this invention acts as a pawl toward the contact point P (see Fig. 4) of the rearmost one of the first stage of the paper rolls 22 loaded in two rows and in two stages on the floor of the truck loading platform 21. A wooden wedge-shaped stopper 1 (see Fig. 1) to be inserted, and a horizontal screw jack 2 (see Fig. 2) installed in the gap between this stopper 1 and the rear side wall 23 of the loading platform to prevent the stopper 1 from retreating. Consists of a combination of

The stopper 1 is a rod having a right triangular cross section and is used so that the slope 3 is in contact with the roll 22,
Screws 2 are perpendicular to the center of the vertical back surface 4.
is loaded. The size of the stopper 1 can be appropriately selected depending on the diameter and width of the roll to be prevented from collapsing.

The screw jack 2 has a right-hand thread 5 on the left end, a left-hand thread 6 on the right end, and a hexagonal part 7 in the center.
A screw main shaft 8 which is connected to the main screw shaft 8, a cap-shaped right-hand screw nut 9 and a left-hand thread nut 10 that are screwed onto both ends of the screw main shaft 8, respectively, and a single-end ratchet trench 11 that fits into a hexagonal part and rotates the screw main shaft 8. It consists of.

The right-hand threaded nut 9 and the left-hand threaded nut 10 have a relatively deep female thread cut from one end to the shaft center, and can be moved over a considerable distance.The other end surface is finished with a smooth curved surface, and has a stopper or a press-fitting stopper. The side wall of the loading platform is not damaged, and the screw jack 2 is prevented from being subjected to inappropriate bending force or force in a torsional direction, making it difficult to damage and ensuring sufficient safety. There is. This screw jack 2 is
A single-end ratchet trench 11 with a long handle is used for use in a narrow space on the loading platform of a truck. The pointed free end of the single-ended ratchet trench 11 is conveniently inserted into the axis of the roll and used to open the wrapping paper.

When this roll collapse prevention device is used on the loading platform of a truck, the first rolls 22 are placed in two rows on the floor of the loading platform 21 as shown in FIGS. 3 and 4. Stack the second-stage rolls 22 by dropping them into the valley-like recesses between the first-stage rolls, pack them all tightly against the front wall 24 of the loading platform, and line them up in a line in the gap between the rearmost rolls 22 of the first stage and the rear wall 23. Load this every time. That is, drive the stopper 1 toward the contact point P on the floor surface of the rearmost roll 22 and insert it, insert the screw jack orthogonally between the rear side wall 23 and the stopper 1, and operate the ratchet trench 11. Then, both screw nuts 9 and 10 are moved outward and expanded, and the stopper 1 is pressed from the back side, and the screw jack 2 is left as it is on the loading platform.

The rolls loaded in two tiers on the loading platform are round and tend to roll, but because the rolls at the rear of the first tier are pressed down by a horizontal jack that does not retract with stopper 1, they are subject to vibration during transportation. Even if each roll moves out of place, it will not collapse.

The driver also checks the fastening state of the stopper and screw jack 2 during transportation, and if they are loosened, he operates a ratchet trench to retighten them.

FIG. 5 is a plan view of the main parts of a screw jack showing another embodiment of this invention. The screw jack of this embodiment has a single-end ratchet trench 11 on the screw main shaft 8.
are fixed together by means such as welding,
There is an advantage that there is no need to worry about the ratchet trench coming off the hexagonal part.

As mentioned above, the roll collapse prevention device of the present invention can use other types of screw jacks, such as rack drive jacks and hydraulic Jyatsuki etc. are also used.

Furthermore, this load collapse prevention device can be used for paper rolls,
It is useful for preventing rolls of various products such as film rolls from collapsing.

〔effect〕

As described above, the roll collapse prevention device according to this invention includes a wedge-shaped stopper that is inserted to stop the rotation of the roll, and a horizontally placed wedge-shaped stopper that is inserted into the gap between the stopper and the side wall of the loading platform to prevent the stopper from retreating. It consists of a combination with a jack, and has a simple structure and can be provided at low cost. It is also easy to handle, and can be used on rolls stacked on the loading platform of trucks and freight cars to prevent scratches. It has beneficial effects.

[Brief explanation of the drawing]

Figures 1 and 2 are a perspective view of a stopper and a cross-sectional plan view of the main part of the jack showing an embodiment of the invention, and Figures 3 and 4 are a plan view and a side view of the main part showing the same state of use. , FIG. 5 is a plan view of the main parts of a jack showing another embodiment of this invention. 1...stopper, 2...screw jack, 8...
Screw main shaft, 11... Single-ended ratchet trench, 21
...Cargo platform, 22...Roll, P...Contact.

Claims (1)

[Scope of utility model registration request] A combination of a wedge-shaped stopper that is inserted toward the contact point of a roll placed on a loading platform having side walls, and a transverse jack with circular curved surfaces on both ends that is loaded into the gap between this stopper and the side wall of the loading platform to prevent the stopper from retreating. Roll collapse prevention device consisting of: