JPH0822513B2 - Packing - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a load fastener for securing a load on a base via a belt, or for securing a belt hung on the load, particularly for a light load. Regarding fasteners.

2. Description of the Related Art The applicant of the present invention has already provided a compact and robust fastener having functional reliability and easy handling (Japanese Utility Model Laid-Open No. 57-165538). In this load clamp, the load clamp body is composed of a body and a lever rotatably connected to the load clamp body, and the lever is rotated in the load clamp direction from the load clamp release position. At this time, the belt winding shaft and the belt pushing shaft provided between the both side walls of the lever rotate around the rotation shaft to clamp the belt.

The above-mentioned load-fastener has a main purpose of securing the automobile to the deck of the ship when a relatively light-duty passenger car is transported by ship, and therefore the size of the load-fastener is relatively small. .

By the way, actually, there are cases where a large vehicle of 10 tons or more is transported by a ship, and in such a case, the above-mentioned fastener is not suitable. Because, in order to withstand the load of a car of 10 tons or more, it is necessary to further configure the whole load fastener, but in this case if the structure of the load fastener is used as it is, Is very large and inconvenient to handle. That is, when the lever is rotated to the load tightening position, the belt winding shaft and the belt pushing shaft are located above the rotation shaft, and therefore, the portion of the lever to which those shafts are attached is larger than the body. This is because the height of the load-clamping main body in the load-clamped state becomes extremely large because of the protrusion, and accordingly, the body needs to be elongated in the longitudinal direction.

Therefore, in view of the above conventional circumstances, the inventor of the present invention can fit the lever relatively well in the body even when the load fastening body is in the load fastening state, and thus the overall size of the load fastening tool is relatively compact. A load fastener having a novel structure suitable for heavy loads has already been provided (Japanese Patent Laid-Open No. 58-15679).

This load clamp is as shown in FIG. 7, and the lever 6 is not directly attached to the body 5 but the lever 6 is attached to the body 5 via the links 7a, 7a, and the lever 6 is attached in the load fastening direction. The basic feature is that the pivot shafts 14a, 14a connecting the links 7a, 7a and the lever 6 are moved in the direction of sinking into the body 5 when they are pivoted. More specifically, one end of each link 7a, 7b is applied to the outside of each side wall 6a, 6a of the lever 6 and rotatably connected by the rotation shafts 14a, 14a, while the other end of each link 7a, 7b is connected. Body 5
On both sides of the side walls 5a, 5a and rotatably connected by a connecting shaft 8 to connect the first hook 1a to the connecting shaft 8 of the body 5 via a connecting member 4, while the lever 6 The belt 2 is fixed between both side walls 6a, 6a of the belt 2 and the belt pushing shaft 12 is fixed, and one end of the belt 2 is wound around the belt winding shaft 13 via the belt pushing shaft 12 and the other end of the belt 2 is When the second hook 1b is connected and the lever 6 is rotated in the load tightening direction from the load releasing position, the belt winding shaft 13 and the belt pushing shaft 12 rotate with respect to the connecting shaft 8 to move the belt. At the same time as tightening, the rotating shaft 14
The a and 14a are designed to move in the direction of sinking inside the body.

By the way, this structure is not limited in its application to large-sized load fasteners. Of course, it can also be applied to the small-sized fastener described above.

However, when this structure is applied to the small load fastener, there are the following problems to be solved.

As shown in FIG. 7, in the large-sized load clamp, one end 2b of the belt 2 is connected to the connecting shaft 9 connected between one end of the body 5 and both side walls 5a, 5b, and the belt 2 is connected to the lever 6. It is stretched in a loop with the body 5. The reason for adopting such a structure is to divide the tensile load of the belt 2 generated by the load clamping into the body 5 and the lever 6 so that the required strength of the lever can be lowered, and therefore the size of the lever can be reduced. Especially.

However, in this structure, the problem that the size of the belt 2 becomes too long, and the second belt between the loop belts 2
There is a problem that the hook 1b is easily inserted and is inconvenient to handle. Therefore, originally, it is preferable that one end 2b of the belt 2 is directly connected to the second hook 1b. Further, in the case of a small load fastener, since the belt is not so heavily loaded, the strength of the lever 6 and hence the size of the lever are not a particular problem.

However, in this way, one end 2b of the belt 2 is hooked on the hook 1b.
If you connect to, another problem will arise here. That is, according to this structure, both the tension of the belt 2 and the tension of the connecting member 4 are applied to the connecting shaft 8 when the belt is pretightened. That is, the end of the body 5 on the connecting shaft 8 side is stable, but the other end is movable and very unstable. It should be noted here that the posture of the load clamp varies depending on its application. In other words, the load clamp may be used in a normal posture in which the lever is in an upper position, or may be used in a posture in which the lever is in a sideways or downward direction. As described above, if the body 5 is unstable at the pre-tightening stage, the work of fastening the load on the lever 6 becomes very difficult. This tendency is strong sometimes when the load clamp is in a posture in which the lever is in the lateral direction or the downward direction.

Therefore, the problem to be solved by the present invention is to stabilize the body at the time of pre-fastening the belt even if the structure adopting the link as shown in FIG. Is to improve.

DISCLOSURE OF THE INVENTION (Structure / Operation / Effect) In order to solve the above technical problems, the present invention is configured as follows.

That is, in the conventional example shown in FIG. 7, one end of each link, the body, and the connecting means are constituted by one connecting shaft, whereas the present invention is such that the connecting means and the body are connected. By making the positions of the parts and the positions of the connecting parts of the links and the body different from each other, the body is pulled in different directions at the two connecting parts when the belt is pretightened or the lever is tightened. The position of the body is thus stabilized.

EXAMPLES The present invention will be specifically described below with reference to the examples shown in FIGS.

As shown in the figure, the load clamp is roughly composed of a main body A and two connecting means A'and A "connected to the main body A, and the lever 6 of the load clamp main body A is firstly arranged. It rotates between the load tightening position shown in FIGS. 2, 3 and the load tightening release position shown in FIGS.

The main body A includes a body 5 and a pair of links 7 on the body 5.
The lever 6 and the lever 6 are rotatably connected via a and 7b.

The body 5 has a pair of laterally long side walls 5a and 5b facing each other.
It is provided with a connecting shaft 8c extending between one ends of the side walls 5a, 5b, and a guide shaft 10 and a bottom wall 9 arranged between the other ends and arranged vertically. The ends of the guide shaft 10 are welded and fixed to the side walls 5a and 5b, respectively.

The connecting member A ', that is, the first hook 1a of this embodiment is connected to the connecting shaft 8c.

The pair of links 7a and 7b are connected by a connecting portion 7c and have a U shape as a whole. One end of each link is connected to each side between the side walls 5a and 5b of the body 5 by the connecting shafts 8a and 8b and at a position separated from the connecting shaft 8c by a predetermined distance l.

The lever 6 includes a pair of opposed side walls 6a and 6b formed by sheet metal working, and a connecting wall 6c connecting the side walls. Then, one end of each of the links 7a, 7b is applied to the outside of each of the side walls 6a, 6b, and each of the rotating shafts 1
It is rotatably connected by 4a and 14b. The pivot shafts 14a, 14 of the both side walls 6a, 6b of the lever and the both side walls 5a, 5b of the body
The portions to which b is attached are made to project outward so that the heads of the rotary shafts 14a and 14b do not interfere with the belt 2.

A belt winding shaft 13 and a knurled belt pushing shaft 12 are fixed between the pair of side walls 6a and 6b. The respective ends of the belt pushing shaft 12 and the belt winding shaft 13 are fixed at positions that are somewhat inward of the edges of the side walls 5a and 5b, and a belt guide portion 6d is formed around these shafts.

The other connecting means A ″ is composed of the belt 2, the connecting member 11 and the second hook 1b connected to the belt 2.
The other end 2a of the belt 2 passes between the guide shaft 10 and the bottom wall 9, passes through the belt pushing shaft 12, and is wound on the belt winding shaft 13 by a film.
After passing through the belt pushing shaft 12 again, the belt guide shaft 10
It is led out to the outside through between the bottom wall 9 and the bottom wall 9. Therefore, as well shown in FIG. 3, the belt 2 is doubled at the belt pushing shaft 12. However, the belt retaining plate 3 attached to the end 2a of the bell is not attached when the belt is inserted.

Now, the operation procedure of the load fastener with the above configuration is as follows.

Figures 4 and 5 show the unloaded state. As shown in FIGS. 4 and 5, in this unloaded state, the lever 6 faces the left side in the drawings, and the rotating shafts 14a and 14b connecting the links 7a and 7b and the side walls 6a and 6b of the lever 6 are connected to the body 5. It largely projects upward from between both side walls 5a and 5b. The hooking of the first hook 1a and the second hook 1b to the baggage or the load-fastening belt is performed in this load-released state, and in this state, one end 2a of the belt 2 is sufficiently pulled to eliminate the slack of the belt 2 ( Pre tightening).

When the lever 6 is positioned at the load clamping position as shown in FIGS. 1, 2, and 3, the rotating shafts 14a and 14b move in the direction of sinking between the side walls 5a and 5b of the body 5, and thus the lever 6 It is possible to prevent the portions where the belt winding shaft 13 and the belt pushing shaft 12 are fixed from projecting above the body significantly from the state at the load release position, and the lever 6 can be compactly accommodated in the body 5 of the body. . The lever 6 is in the load-closed state when predetermined portions of the side walls 5a and 5b come into contact with the guide shaft 10 and the mooring protrusions 5c formed at predetermined positions of the side walls 5a and 5b protrude inward. It is maintained by being locked in the mooring holes 6j formed at the positions where 6a and 6b face each other. In this tightened state, the tension portion between the belt push-in shaft 12 of the belt 2 and the connecting fitting 11 is the rotating shafts 14a,
Since it is located closer to the belt pushing shaft 12 or the belt winding shaft 13 than the central axis O of 14b, if further tension is applied to the belt 2 during use, the lever 6 will rotate in the direction of further tightening the load. Therefore, it is prevented that the load is naturally released during use. Further, as shown in FIG. 6, when the belt 2 is loosened during use and the load clamping body A is turned upside down, the belt 2
Comes out of the belt guide shaft 10 and comes into pressure contact with the bottom wall 9, but even in this case, the portion of the belt 2 between the bottom wall 9 and the belt pushing shaft 12 is rotated by the rotating shafts 14a, 14b. Belt push-in shaft 12 or belt winding shaft than the new central shaft
Since it is located on the side of 13, the lever does not naturally rotate in the load releasing direction even if the belt 2 is tensioned again, as described above.

By the way, in the above structure, at the time of preliminary tightening of the belt and load tightening of the lever, the body has two points in the side view, that is, two points of the connecting shaft 8c and the connecting shafts 8a and 8b (in plan view, The shafts 8c, 8a, and 8b (3 points) are pulled in opposite directions.
In other words, the position of the body 5 is stable along the belt pulling direction. Therefore, when the lever 6 is fastened after pre-fastening the belt, the body 5 is stable and does not wobble.

And, needless to say, the above-mentioned embodiment has the load-clamping body A
Since the lever 6 is not directly rotatably connected to the body 5 via the links 7a and 7b, the lever 6 and the link 7 are connected to each other when the lever 6 is positioned at the load clamping position.
The rotating shafts 8a and 8b connecting the a and 7b move in the direction of sinking inside the body 5, so that the lever 6 can be compactly housed in the load-closed state without projecting much wider than the body 5 upward. At the same time, the lateral length of the body 5 can be made small, and as a result, the entire body of the load clamp can be made compact.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention, FIGS. 1 and 2 are a plan view and a front view of a load clamp in a load clamp state, and FIG. 3 is a sectional view taken along line III-III of FIG. Fig. 4 is a sectional view similar to Fig. 3 of the load clamp in the unloaded condition, Fig. 5 is a cross sectional view of Fig. 4, and Fig. 6 is a loosened belt in the loaded condition and the load tightening body is reversed. FIG. 7 is a cross-sectional view of the load fastener in the state, and FIG. 7 is a cross-sectional view of the load fastener according to the conventional example. 1a, 1b …… hook, 2 …… belt, 2a, 2b …… end part, 3…
... Belt retaining plate, A ... Loading clamp body, A ', A "... Coupling means, 5 ... Body, 5a, 5b ... Side wall, 5c ... Morning protrusion, 5d ... Locking part, 6 ... … Lever, 6a, 6b …… Sidewall, 6c
...... Connecting wall, 6j ...... Mooring hole, 7a, 7b ...... Link, 8a, 8b, 8
c ... connecting shaft, 9 ... bottom wall, 10 ... guide shaft, 12 ... belt pushing shaft, 13 ... belt winding shaft, 14a, 14b ... rotating shaft.

Claims (1)

[Claims] Claims: 1. One end of each link (7a, 7b) is applied to the outside of the side wall (6a, 6b) of the lever (6) and the rotation shaft (14a, 14).
b) rotatably connected, while each link (7a, 7b)
The other end of the body is applied to the inside of both side walls (5a, 5b) of the body (5) and is rotatably connected by a connecting shaft (8a, 8b), and both side walls (5a, 5b) of the body (5) are ) And a connecting means (A ') is connected to the connecting shaft (8c) at a position apart from the connecting shafts (8a, 8b) by a predetermined distance, and the lever (1) is connected to the lever (1). The belt winding shaft (13) and the belt pushing shaft (12) are fixed between both side walls (6a, 6b) of (6), and one end of the belt (2) is passed through the upper belt pushing shaft (12) and then the belt winding shaft When the hook (1b) is connected to the other end of the belt (2) wound around the belt (13) and the lever (6) is rotated in the load clamping direction from the load releasing position, the belt winding shaft (13) is wound. And the belt pushing shaft (12) rotates with respect to the rotating shafts (14a, 14b) to tighten the belt (2), and at the same time, the rotating shafts (14a, 14b).
A packing fastener characterized in that b) is moved in the direction of sinking into the body (5).