JPH0571448B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a load tightening tool for fixing a load on a base or tightening the load itself, and in particular,
This invention relates to a load tightening tool that can be retightened multiple times.

PRIOR ART The present inventors have already proposed one load fastener of this type in Japanese Patent Application No. 156292/1983 (unpublished). The load tightening device proposed here is suitable for securing large vehicles to the deck of a ship, especially in the case of ship transportation of large vehicles, and the load tightening device has a relatively compact structure, and It is characterized by being able to be retightened multiple times.
The general structure of this load tightening tool is shown in FIGS. 6 and 7.

If explained according to Figs. 6 and 7, this load tightening tool is roughly composed of a main body A and two connecting members A' and A'' connected to the main body A, and a lever on the main body A. By rotating 6 relative to the body 5,
The connecting members A', A'' are tightened and released.The main body A is constructed as follows.That is, both side walls 6 of the lever 6
One end of each link 7a, 7b is placed on the outside of each link 7a, 6b, and is rotatably connected by each rotation shaft 14. On the other hand, the other ends of each of the links 7a, 7b are applied to the inner sides of both side walls 5a, 5b of the body 5, and are rotatably connected by rotation shafts 17a, 17b. A connecting shaft 8 is provided between the left ends of both side walls 5a and 5b of the body 5 in the figure, and a connecting member A' is connected to the connecting shaft 8. That is, the connecting member A' is
A belt 4 whose one end is connected to a connecting shaft 8, and a first hook (not shown) connected to the other end of the belt 4.
It becomes more. On the other hand, between both side walls 6a and 6b of the lever 6, there is a belt winding shaft 13 and a belt pushing shaft 12.
is fixed. Another connecting member A'' is composed of a belt 2 and a second hook (not shown) connected to one end of the belt 2, and the other end 2a of the belt 2 is connected to the belt pushing shaft 12. Then, it is wound around the belt winding shaft 13 and led out to the outside.When the lever 6 is rotated from the load tightening release position in the load tightening direction, the belt winding shaft 13 and the belt pushing shaft 12 are rotated. It rotates about the rotation shaft 14 to tighten the belt 2.

Furthermore, in the above-mentioned load tightening tool, the body 5
A support shaft 21 and a belt stopper plate 22 are provided between the right ends of both side walls 5a and 5b in the figure, and a support shaft 21 and a belt stopper plate 22 are provided.
A belt stopper claw 19 is rotatably attached to the belt.
By providing this belt retaining pawl 19, it becomes possible to further tighten the belt. That is,
After the lever 6 is rotated once from the load tightening release position to the load tightening position to apply a constant tension to the belts 2 and 4, the belt stopper claw 19 is rotated counterclockwise in FIG. 7 to stop the belt. The second end side 2b of the belt 2 is sandwiched between the belt holding bar 19c of the claw 19 and the belt stopping plate 22, and in this state, the lever 6 is temporarily returned to the load tightening release position, and the first end side 2a of the belt 2 is The tension in the belts 2 and 4 is increased by pulling the belts to take up the slack, and then rotating the lever 6 again to the load tightening position.

As mentioned above, the load tightening device having the above structure can arbitrarily increase the tension of the belts 2 and 4, so when the length of the belts 2 and 4 becomes long and a large tightening margin is required, Although very effective, there is one problem. The problem is that the belt retaining pawl 19 becomes an obstacle when the belt 2 is loosened when the load is released. In other words, in order to loosen the belt 2, the second end side of the belt 2 must be
b needs to move to the right in the figure, but if the belt stopper claw 19 is a bit upright, this second end side 2
With the rightward movement of b, the belt presser bar 19c
As a result, the belt 2 is clamped between the belt presser bar 19c and the belt stopper plate 22, and its movement is prevented. Therefore,
In order to loosen the belt 2, it is necessary to hold the belt retaining claw 19 so that it does not stand up.

Technical problem of the present invention Therefore, the technical problem to be solved by the present invention is to avoid the belt fastening claw far from the belt fastening position when releasing the load fastening in this type of load fastening device equipped with a belt fastening claw. The goal is to get a structure to hold it.

SUMMARY OF THE INVENTION The present invention is applicable not only to the specific load fasteners shown in FIGS. 6 and 7 but also to load fasteners of the following type.

That is, this load tightening tool connects the first connecting member directly or indirectly to one end of the body, and directly connects the lever to the body so as to be freely rotatable between the load tightening position and the load tightening release position. or indirectly attached, and connects the first end side of the belt as the second connecting member to the lever, and leads both the first end side and the second end side to the outside of the body, and further , comprising a support shaft on the other end of the body to which a belt stopper is rotatably attached between a belt stopper position and a belt release position, and a belt stopper plate that cooperates with the belt stopper; is tightened by rotating the belt from the load tightening release position in the load tightening direction, while tightening the belt.
When retightening the lever, by operating the belt stopper, the second end of the belt is held between the belt stopper and the belt stopper plate, and the tension applied to the belt is maintained. This enables retightening operations.

Now, in order to solve the above technical problem, the present invention is configured as follows.

That is, the belt stopper is attached to the support shaft,
a pair of side plates rotatably attached to the body between the belt stop position and the belt release position; and a claw release shaft and a claw stop shaft, each of which is mounted between the both side plates and at the opposite end of the belt pressure bar from the spindle side, respectively. The first end of the belt is led out of the body by passing between both side plates of the belt stopper and between the stopper shaft and the release shaft, while the second end of the belt is connected between the belt stopper plate and the belt stopper. It is led out of the body through the belt holding bar of the claw, and when retightening the lever,
By operating the first end of the belt, the first end rotates the belt retaining pawl to the belt retaining position via the pawl retaining shaft, and the second end of the belt is placed between the belt presser bar and the belt retaining plate. While temporarily holding the belt, when tightening the belt, operate the first end of the belt,
The belt retaining pawl is configured to be rotated and held at the belt release position by the first end side via the pawl release shaft. With the above configuration, the belt stopper can be rotated to the belt stop position and held in the belt release position by only a simple up and down operation on the first end side of the belt, and the lever can be tightened further. It is really easy to operate and loosen the belt.

Embodiment Below, one embodiment of the present invention shown in FIGS. 1 to 5 will be described in detail.

First, the general structure of the cargo fastener will be explained based on FIGS. 1 and 2. In addition, in Figures 1 and 2, the lever 6 is
The figure shows a state in which the body 5 has been rotated to the load tightening position.

The main body A is generally composed of a body 5 and a lever 6 rotatably connected to the body 5 via a pair of links 7a and 7b, similar to the conventional example described above.

The body 5 has a pair of opposing oblong side walls 5.
a, 5b. At one end of the pair of side walls 5a, 5b, that is, at the right end in the figure, a plurality of shafts 10, 20, 21 and a belt stopper plate 2 are provided.
2 are provided. In the figure, one connecting shaft 20 and one belt stopper plate 22 are arranged vertically shifted from each other, so that one end side 2b of the belt 2 passes through a passage formed between the two members 20 and 22. It's summery. In addition, the other guide shaft 10 is
Lever 6 is located at the top in the figure and is in the load tightening state.
The function is to position the Further, the other shaft 21 is configured as a support shaft for rotatably supporting the belt retaining pawl 19 disposed between the side walls 5a and 5b with respect to the body 5.

The belt stopper 19 is connected to a pair of opposing side plates 1.
9a and 19b, a pawl stopper shaft 19d and a pawl release shaft 19e are fixed between the outer ends of the side plates, and a belt presser bar 19c is fixed to the inner end thereof. Belt stopper claw 19 having the above configuration
can freely rotate between the release position shown in FIG. 2, that is, the position where the belt presser bar 19c is separated from the belt 2, and the belt stop position shown in FIG.

The left ends of both side walls 5a and 5b of the body 5 in the figure are as follows:
The links 7a and 7b are connected to each other near the left end in the outside view via rotation shafts 17a and 17b. A connecting shaft 8 is fixed to the left end of the pair of links 7a and 7b in the figure, and one connecting member is fixed to the connecting shaft 8.
A', that is, the belt 4 is connected. What should be noted here is the relative positional relationship between the rotating shafts 17a, 17b and the connecting shaft 8. That is, the first,
2 shows a state in which the lever 6 is in the load tightening position with respect to the body 5, and the belt 4 and the belt 2 are each pulled in a straight line, but the connecting shaft 8
As shown in the figure, each rotation shaft 17a, 17b is offset to a lower position, that is, a position on the side opposite to the lever load tightening side, with respect to a tension line T passing approximately at the center of the lever.

The lever 6 has a pair of opposing side walls 6a and 6b.
and a connecting wall 6c that connects these side walls. The right ends of the links 7a and 7b in the figure are placed on the outside of each of the side walls 6a and 6b, and are rotatably connected to each other by a rotation shaft 14, respectively.

A belt winding shaft 13 and a knurled belt pushing shaft 12 are fixed between the pair of side walls 6a and 6b. These belt pushing shafts 12
Also, each end of the belt winding shaft 13 has a side wall 6a,
6b, and a belt guide portion 6d is formed around these axes. Furthermore, a load tightening rod insertion cylinder 18 is fixed at a predetermined position of the connecting wall 6c. This load tightening rod insertion tube 18 is for inserting the tip of a load tightening rod (not shown), and the lever 6 is inserted through the load tightening rod.
is adapted to be rotated relative to the body 5.

A hook (not shown) is connected to one end 2b of the belt 2. On the other hand, the other end 2a of the belt 2 is connected as shown in FIG. 1 in the following manner. That is, both side walls 5a and 5b of the body 5
The other end side 2a of the belt is introduced from the outside so as to pass between the connecting shaft 20 and the belt stopper plate 22, and is wound around the belt winding shaft 13 via the belt pushing shaft 12, and then the belt pushing shaft 12 is wrapped around the belt winding shaft 13 again. It passes between the release shaft 19e of the belt retaining pawl 19 and the pawl retaining shaft 19d, and is led out to the outside. Therefore, as clearly shown in FIG.
It is doubled in this part.

As shown in FIG. 5, both side walls 5a and 5b of the body 5 are each provided with a mooring protrusion 5c that protrudes inward at a predetermined position, while both side walls 6a and 6b of the lever 6 are provided with mooring protrusions 5c that protrude inwardly at predetermined positions. A mooring hole 6j is provided at a predetermined position corresponding to 5c. Each of the mooring protrusions 5c is adapted to fit into each corresponding mooring hole 6j when the lever 6 is in the load tightening position with respect to the body 5. Therefore, the lever 6 is stable with respect to the body 5 even if the load tightening device body A slightly vibrates at the load tightening position.

Next, the belt 2 is
The operation procedure for retightening will be explained with reference to FIG.

When the first load tightening is completed (not shown), the belts 4 and 2 are not yet sufficiently stretched in a straight line. Next, in order to further tighten the belts 4, 2, as shown in FIG. 3, the free end side 2a of the belt 2 is first lifted upward. Then, the free end side 2a lifts the pawl stop shaft 19d of the belt stop pawl 19 upward, and as a result,
The entire belt stopper 19 rotates counterclockwise in the figure, and the belt presser bar 19c presses the tension end side 2b of the belt 2 against the belt stopper plate 22. The amount of counterclockwise rotation of the belt retaining pawl 19 is regulated by the guide shaft 10. In the state shown in FIG. 3, when the lever 6 is rotated in the direction of releasing the load tightening, the belt 2 tends to be loosened, so that the portion 2b tends to move rightward in the figure. Therefore, since the belt retaining claw 19 is in contact with the belt portion 2b, the belt retaining claw 19 is rotated in the counterclockwise direction as a whole, and as a result, the belt retaining bar 19c is in contact with the belt portion 2b.
Push the belt further into the belt stopper plate 22 to make it stronger.
As a result, the belt 2 is held securely and will not loosen any further.

What should be noted in the state shown in FIG. 3 is that the lever 6 is generally sunk downward between the pair of links 7a and 7b, but
7b and the connecting shaft 8, it is lifted slightly above the fully sunk position. That is, since the belt 2 is held by the belt stopper claw 19 and the belt stopper plate 22 of the body 5, the tension applied to the belts 2 and 4 is borne by the body 5 and the links 7a and 7b. Therefore, the pivot shaft 17 which is deviated
a and 17b try to approach the tension line T connecting between the belt holding bar 19c of the belt stopping claw 19 and the belt stopping plate 22 and the center of the connecting shaft 8, and as a result, as described above, this rotation Moving axis 17
a, 17b are lifted upward, and therefore the right end sides of the links 7a, 7b in the figure are also lifted upward,
As a result, each rotation shaft 14 connecting the links 7a, 7b and the lever 6 floats upward.
Then, the lever 6 as a whole rotates about each rotation shaft 14 in the counterclockwise direction in the figure, that is, in the load release direction. Therefore, as shown in FIG. 3, the belt pushing shaft 12 is held at a sufficiently high position relative to the belt winding shaft 13, and the double portions of the belt 2 at the belt pushing shaft 12 are separated from each other. This can lead to a situation where Therefore, when pretightening is performed by pulling the one end side 2a of the belt 2, the one end side 2a of the belt 2 is tightened without causing a large resistance because the double portions of the belt are not in contact with each other.
It is possible to pull a. By performing this preliminary tightening, the slack in the belt 2 loosened in FIG. 3 is removed (this state is shown by the imaginary line in the figure).

Next, when the lever 6 is rotated again in the direction of the load tightening position, the load tightening force is applied to the portion 2b of the belt 2 and moves to the left in the figure, so the belt stopper claw 19 is rotated in the direction of the hour hand, and the automatic The stop was lifted,
Belts 2 and 4 will be retightened for the first time. In the same manner, additional tightening can be performed for the second and subsequent times.

On the other hand, as shown in FIG. 4, when loosening the belt 2, one end side 2a of the belt 2 is overlapped with the other end side 2b, and the claw release shaft 19e of the belt stopper claw 19 is pressed down. The entire belt retaining pawl 19 is rotated in the direction of the hour hand, that is, to the belt release position, and while this state is maintained, the other end side 2b of the belt 2 is pulled out to the right in the figure. By doing so, the belt stopper 19 is effectively prevented from interfering with the loosening operation of the belt 2, and the belt can be loosened quickly.

In addition, in this embodiment, as shown in FIG.
are recessed inward to narrow the interval between the portions 5g, thereby guiding the belt 2 so that it does not shift in the width direction.

[Brief explanation of the drawing]

1 to 5 show embodiments of the present invention, FIG. 1 is a side view of the main parts of the load tightening tool, FIG. 2 is an enlarged sectional view of FIG. 1, and FIG. An enlarged sectional view of the tool, FIG. 4 is an enlarged sectional view of the main part showing a state in which the belt is loosened, FIG. 5 is an enlarged sectional view taken along the line of FIG. 1,
6 and 7 are a side view and a cross-sectional view of the main parts of a conventional load fastener. 2...Belt, 2a, 2b...End portion, 4...Belt,
A...Loading device body, A', A''...Connecting member, 5...Body, 5a, 5b...Side wall, 5c...Mooring protrusion, 6...Lever, 6a, 6b...Side wall, 6c...Connecting wall, 6d...
Belt guide part, 6j... Mooring hole, 7a, 7b... Link, 8... Connection shaft, 10... Guide shaft, 12... Belt pushing shaft, 13... Belt winding shaft, 14... Rotation shaft,
17a, 17b...Rotation shaft, 18...Loading rod insertion cylinder,
19... Belt stopper claw, 19a, 19b... Side plate, 1
9c...Belt presser bar, 19d...Claw stop shaft, 19
e...Claw release shaft, 20...Connection shaft, 21...Support shaft, 22
...Belt stop plate, T...tension line.

Claims (1)

[Scope of Claims] 1. A first connecting member A' is connected to one end of the body 5, and a lever 6 is attached to the body 5 so as to be rotatable between a load tightening position and a load tightening release position. The first end side 2a of the belt 2 as the second connecting member A'' is connected to the lever 6, and both the end of the first end side 2a and the second end side 2b are led out to the outside of the body 5, and further, The body 5 is provided with a support shaft 21 on which the belt stopper 19 is rotatably pivoted between a belt stop position and a belt release position, and a belt stop plate 22 that cooperates with the belt stopper 19. and the belt stopper claw 19 is attached to the support shaft 21.
A pair of side plates 19a and 19b are rotatably mounted on the body 5 between the belt stop position and the belt release position, and Belt stop plate 22
a belt presser bar 19c attached to the side end;
A claw release shaft 19e and a claw stop shaft 19d are respectively mounted between the side plates 19a and 19b and at the end opposite to the belt presser bar 19c from the support shaft 21 side. Further, the first end of the belt 2 is located between both side plates 19a and 19b of the belt stopper claw 19 and the claw stopper shaft 1
9d and the claw release shaft 19e to the outside of the body, while the second end side 2b of the belt 2 passes between the belt stopper plate 22 and the belt holding bar 19c of the belt stopper claw 19 to the outside of the body. When retightening the lever 6, the first end 2a of the belt 2 is operated, and the first end 2a rotates the belt stopper 19 to the belt stop position via the stopper shaft 19d. The second end side 2b of the belt 2 is temporarily held between the belt presser bar 19c and the belt stop plate 22, while the first end side 2a of the belt is operated to loosen the belt 2. A load tightening device characterized in that a belt retaining pawl 19 is rotated and held at a belt releasing position by one end side 2a via a pawl releasing shaft 19e.