JPS5828764Y2 - Load fasteners - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cargo fastening device used for securing cargo to a loading platform, a boat platform, etc.

Conventionally, as a type of load tightening device, a pair of hooks are connected to the base of a lever via a connecting member, and the distance between the pair of hooks is expanded or contracted by raising and lowering the lever to tighten or release the load. There is something that does this.

By the way, with this type of load tightening device, the distance between the pair of hooks is fixed to a certain size when expanded, and there is no flexibility, so there is a problem that the load may be tightened too much or not tightened when tightening the load. There is.

The present invention was made in view of the above-mentioned problems of the conventional technology.The present invention incorporates an extensible means such as a compression coil spring into one of the connecting members that connect the pair of hooks of the lever, thereby increasing the length of the connecting member. The object of the present invention is to provide a cargo fastening tool which can be adjusted to expand and contract within a certain range, and has flexibility in the distance between a pair of hooks when expanded and contracted.

Another object of the present invention is to provide a telescoping means equipped with a stopper that limits the amount of compression of the spring so that the compression coil spring of the telescoping means is not damaged during use of the load fastener.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 denotes a lever, and a first connecting fitting 8 and a second connecting fitting 16 are connected to a base portion 1d of the lever 1.

A ring 8d is provided on the front surface of the base 8a of the first connecting fitting,
One U-shaped connecting fitting 1 of the telescopic means 6 is attached to this ring 8d.
On the other hand, the seventeenth hook 3 is connected to the other U-shaped connecting fitting 13 via rings 9a and 9b.

At the end of the head 16a of the second connecting fitting, a ring 16c>
and 18 to connect the twenty-seventh hook 5.

The lever 1 has a handle 1a and a base 1 continuous to the handle 1a.
d, and the base 1d is opposite to the side plate 1b.
, Ic.

Further, the first connecting fitting 8 is formed into a roughly U-shape with a base portion 8a and opposing side plates 8b and 8c connected to the base portion 8a.
The opposing side plates 1b and 1c of the lever 1 are inserted between the opposing side plates 8b and 8c, and the tip of the side plate 8b of the first connecting fitting 8 and the tip of the opposing side plate 1b of the lever are connected by a hinge. At 15a, also connect the tip of the side plate 8c of the first connecting fitting and the tip of the side plate 1c of the lever opposite thereto.
- These pins 15a and 15b are connected to each other by the pins 15b.
The lever 1 can be rotated with respect to the first connecting fitting 8 using the lever 1 as a fulcrum.

Also, when tightening the load, the handle part 1a of this lever can be connected to the first connecting fitting 8.
When the lever is pushed down in the direction of the continuous portion 8a, the side plate 1b of the lever
, 1c is submerged between the side plates 8b, 8c of the first connecting fitting, and the lower surface near the boundary between the side plates 1b, 1c and the handle 1a contacts the upper surface of the base 8a of the first connecting fitting, and The handle portion 1a is arranged along the first connecting member 2.

On the other hand, the second connecting fitting 16 consists of a head 16a and a plate-shaped part 16b connected to the head 16a, and the plate-shaped part 16b is inserted between the opposing side plates 1b and 10 of the lever 1, and
The tip of the plate-like portion 16b is rotatably coupled to a predetermined position near the husband's handle of each of the side plates 1b, 1c of the lever 1 facing the plate-like portion 16b by means of a pin 17.

The pin 17 that connects the second connecting fitting 16 and the lever 1 is used when tightening the load, that is, by pushing down the handle 1a of the lever toward the first connecting member 2, and pushing a part of the handle 1a to the first connecting fitting 8. A pair of pins 15a, 1 that connect the first connecting fitting 8 and the lever 1 when brought into contact with the upper surface of the base 8a of the
5b and the point of action of the chain 4 on the ring 3b provided on the base 8a of the first connector, the opposite side to the upper surface of the base 3a of the first connector and the It is located near a plane.

By locating the pin 17 in this manner, when tension is applied to the chain 9 and ring 18 during load tightening, the lever 1
always rotates in the load tightening direction, that is, in the direction of pressing the lever 1 against the base 8a of the first connecting fitting.

The expansion/contraction means 6 includes a compression coil spring 7, and disk-shaped spring seats 10, 11 are abutted on each end of the compression coil spring 7.

The spring seat plate 10 is provided with a pair of large-diameter through-holes 10a, 10b and a pair of small-diameter through-holes 10c, 10d on the same circumference smaller than the inner diameter of the coil spring, which penetrate through the center of the circumference. The holes 10a and 10b are the through holes 10c and 1
0d are symmetrical, and each through hole 1
They are arranged so that the phase difference between 0a, 10c, 10b, and 10d is approximately 9C.

Further, the spring seat plate 11 is also provided with a pair of large-diameter through holes 11a, 11b and a pair of small-diameter through holes 11c, 11d on a circumference having the same diameter as the above-mentioned circumference. On the other hand, the through holes 11a and 11b are made to be symmetrical to the through holes 11c and 11d, respectively, and each through hole 11a, 1
They are arranged so that the phase difference between 1c, 11b, and 11d is approximately 9 degrees.

- Also, a pair of large-diameter through holes 10 in one spring seat plate 10
a.

Each of the U-shaped connecting fittings 10 is fitted with a pair of tip ends of the U-shaped connecting fittings 12 so as to be slidable from the outside to the inside, and is provided on the spring seat plate 11 facing the spring seat plate 10 through the inside of the coil spring 7. A pair of small diameter through holes 11c, 1
The ends of the connecting fittings 12 are fitted into each of the connecting fittings 1d and fixed.

A pair of large diameter through holes 11a and 11b of the spring seat plate 11
Similarly, the husband and husband also fit the pair of ends of the U-shaped connecting fittings 13 in a slidable manner from the outside to the inside, and pass them through the inside of the coil spring 7 to the spring seat plate 10 opposite to the spring seat plate 11. A pair of small diameter through holes 10c, 10 provided
The tips of the connecting fittings 13 are fitted into and fixed to each of the connecting fittings 13.

In addition, the straight parts 12a, 12 of the connecting fittings 12.13
b, 13a.

A round bar-shaped stopper 14 is fitted into a space surrounded by the seat plate 13b and the pair of seat plates io and ii.

The axial dimension of this stopper 14 is set to be slightly larger than the compressed length of the coil spring 7 when it was compressed before the adjacent windings were in contact with each other.

Further, the base portions of the pair of U-shaped connecting fittings 12 and 13, that is, the curved portions 12c and 13c, are connected to the ring 8dt or the chain 9 as described above.

The load fastener having the above structure is operated and used as shown in FIGS. 5 and 6.

In FIGS. 5 and 6, reference numeral 19 denotes the floor surface of a loading platform loaded with luggage 20, and a ring 21 is fixed at a predetermined location thereof.

On the other hand, a ring 22 is also fixed at a predetermined location on the luggage 20,
A chain 2 is attached to this ring 22 via a hook 24 to adjust the distance between the loading platform and the ring 21.
3 is hanging.

Now, as shown in Fig. 5, when starting load tightening, lever 1
The first connecting fitting 8 and the second connecting fitting 16 connected to each other are separated from each other, and the 17th hook 3 is hooked on the ring 21 of the loading platform, while the 27th hook 5 is pulled up diagonally upward and the chain 23 is pulled diagonally downward. Pull the hooks 3, 5 and the ring 22 in a straight line, and insert the 27th hook 5 into the corresponding chain link n 3.
Hook it on a.

When the 27th hook 5 is pulled up, the U-shaped connecting fittings 12 and 13 of the expansion/contraction means are pulled in opposite directions, so that the pair of seat plates 10 and 11 pull up the coil spring 7 depending on the strength of the pulling force. They can be compressed by a certain amount and brought closer to each other.

Therefore, the distance between the 17th claw 3 and the 27th claw 5 is automatically finely adjusted depending on the strength of the tensile force.

Next, as shown in FIG.
A is pulled toward the user, the entire lever 1 is rotated using pins 15a and 15b as fulcrums, and the handle 1a is brought down substantially along the first connecting member 2 to tighten the load.

The coil spring 7 of the expansion/contraction means 6 is compressed by a certain amount by the tightening of the load.

After the load is tightened, a large tension is applied to the load tightener for some reason, and the coil spring 7 of the expansion/contraction means 6 is further compressed.
The spring seats 10.11 of the telescoping means 6 contact both sides of the stopper 14, so that the coil spring 7 is no longer compressed.

The expansion and contraction means 6 of the above embodiment includes a pair of connecting fittings 12 and 13.
straight portions 12a, 12b, 13a.

13b were respectively arranged inside the coil spring 7,
It is also possible to arrange one or both of the pair of coupling fittings 12, 13 outside the coil spring 7.

Furthermore, both of the connecting fittings 12 and 13 do not necessarily have to be U-shaped; one may be U-shaped and the other may be shaped like an eye bolt.

Furthermore, the stopper is constructed of a pipe-like member, which is connected to the straight parts 12a and 12b of the connecting fittings.

It can also be fitted on the outside of 13a, 13b.

As detailed in the above-mentioned embodiments, the load tightening device according to the present invention has the following features:
The connecting member is configured with H+<, 6 telescoping means, and the distance between the pair of hooks can be automatically finely adjusted, resulting in good workability during load tightening work. Even when an excessive tensile force is applied, the tensile force is absorbed, so that the load binding device itself or the cargo will not be damaged.

In addition, the expansion and contraction means of the load tightening device is equipped with a stopper that comes into contact with the spring seat plate and limits the amount of compression of the coil spring to within a certain limit, so it prevents contact wear between adjacent windings of the coil spring. Buckling and the like are prevented, damage to the expansion and contraction means is prevented, and the maximum length of the distance between the pair of hooks of the load fastener can be reliably guaranteed.

[Brief explanation of the drawing]

1 and 2 are a front view and a plan view of a load fastening device according to an embodiment of the present invention, FIG. 3 is a sectional view taken along the line m-m in FIG. , 6 is a diagram showing how this load tightening tool is used. 1... Lever, 1a... Handle, 1d... Base, 2
... first connection member, 3 ... first hook, 4 ... second connection member, 5 ... second hook, 6 ... expansion and contraction means,
7...Coil spring, 10. 11...Spring seat plate, 12.13...Connection fittings, 14...Stopper.

Claims (1)

[Claims for Utility Model Registration] A pair of hooks are connected to the base of the lever through connecting members,
For a load tightening device that tightens or releases a load by expanding or contracting the distance between a pair of hooks by operating a lever, at least one of the connecting members has an expansion and contraction means built into a part thereof. , the expansion/contraction means includes a compressible coil spring held between a pair of spring seat plates, a stopper held between the pair of spring seat plates for limiting the amount of compression of the coil spring, and a spring in front of each of the coil springs. It slidably passes through the seat plate, and its tip is fixed to the other spring seat plate, one base is attached to the lever itself or the connecting member on the lever side, and the other base is attached to the hook itself or the connecting member on the hook side. A load fastener comprising a pair of connecting fittings that are connected and pulled in opposite directions.