JPS6030290Y2 - automatic locking hook - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a hook that can be automatically engaged and disengaged. The tip of the piece is pushed up by the rising bang pin guided by the inner upper surface of the hook part at the upper part of the inner upper surface that slopes upwardly, and the bang pin escapes upward. By simply lowering or raising the hook by pivoting it down so that it falls towards the tip of the hook,
To enable a hook and a bang pin to be engaged or disengaged.

[Conventional technology]

Conventionally, as this type of automatic locking hook,
There is one such as that taught in Japanese Patent No. 26896.

As stated in the same publication, a hook piece 8 and a locking rod 2 are independently pivoted and suspended from a container frame 3 fixed to the ceiling, etc., and the locking rod 2 has an upper end thereof. A clasp 11 is provided, and a latching piece 5 that descends and engages the clasp 11 by the pivotal rotation of the hook 8 and a side arm 6 that supports the latching piece 5 are provided at the pivoting portion of the hook 8. Fixed.

Then, as the hanging piece 15 of the object to be hung rises, the hanging piece 15 locking rod 2 and the hook piece 8 are pushed apart from side to side, enter the hook part 10 and engage with each other, and the hanging piece 15 further rises and pushes the inner upper edge 9 of the hook portion 10, pivoting the hook piece 8, and hooking the locking piece 5 to the hook 11, thereby moving the hook piece 8 into its pivoted position. maintain.

Also, when the hanging piece 15 descends and depresses the locking rod 2, the hook 1
1 pivots in the direction of detaching from the locking piece 5, the hook piece 8 returns to its original hanging position, and the hook portion 10 is closed by the locking rod 2.

[The problem that the invention is trying to solve]

However, according to such automatic locking hooks, the hook piece and the locking rod are independently pivoted and suspended from the ceiling, etc., so that the hook is not locked to the locking rod. The hook was held open, and the hanging piece struck the locking rod, causing the hook to release the locking rod and allowing the hook to return. When the container frame, which pivotally supports the locking rod, is suspended from a conveying machine such as a crane via a flexible strip, the hook and the locking rod may swing. This may cause a mistake in the action of the hanging piece hitting the locking rod.

Therefore, when such an automatic locking hook is used in a conveyance machine such as a crane, its operation is not reliable, so there is a problem in that it lacks reliability in fully automated warehouses, factories, etc.

[Means to solve the problem]

In order to solve this problem, this invention, for example, as in the illustrated embodiment, hooks a bang pin 3 of a suspended object onto a hook body 1 which is pivoted and suspended from above by a pin 2 on a conveying machine. For this purpose, it has a hook part 4 whose inner upper surface and inner lower surface are inclined upward, and the upper end of the hook part 4 is pivotally connected to an opening 5 by a pin 8 to freely hang down so as to close the opening 5. A relief piece 6 is provided, and the bottom surface of the hook body 1 is formed into an inclined surface 9 that rises in the direction of the hook portion 4, and furthermore, a lower end 10 of the bottom surface of the hook body 1 The center of gravity is set so that when it hangs freely from the pivot point, it deviates by the necessary dimension from the vertical line (2) from the pivot point to the side opposite to the inclined surface 9, and the length of the relief piece 6 is Said hook part 4
In the self-locking hook, which protrudes from the tip of the hook by the required dimension, the relief piece 6 is pivotally attached to the hook body 1 itself near the upper part of the inner upper surface of the hook portion 4, and the tip thereof is The bang pin 3 is pushed up by the bang pin 3 which is guided by the inner upper surface of the hook portion and raised.
The present invention relates to an automatic locking hook that is configured to escape upward and then fall toward the tip of the hook portion 4.

[Effect]

In this invention, the relief piece 6 is pivotally attached to the hook body 1 itself near the upper part of the inner upper surface of the hook part 4, and the tip thereof is guided by the inner upper surface of the hook part and raised. Since the bang pin 3 is pushed up by the coming bang pin 3, the bang pin 3 is released upward, and then falls toward the tip of the hook portion 4, so that when the bang pin 3 passes, the hook portion 4 swings. Regardless, the release piece 6 will surely return to the tip of the hook portion 4 due to its own weight, and the hook portion 4 will also return to its appropriate hanging position due to its own weight.

〔Example〕

1 and 2 are a front view and a side view, respectively, of the hook according to this invention, and the hook body 1 is attached to a conveying machine (not shown).

) is pivoted and suspended by a pivot pin 2 via a wire rope or link of an overhead crane or the like.

The hook body 1 has a hook portion 4 curved to hook the bang pin 3 of the object to be suspended, and the inner upper surface and the inner lower surface of the hook portion 4 are inclined diagonally upward. Thus, the opening 5 is configured to face obliquely upward.

Immediately above the opening 5, that is, immediately above the upper end of the inner upper surface, a relief piece 6 is pivotally attached at its upper end by a pivot pin 8 and hangs freely, and the tip of the relief piece 6 is attached to a hook. The relief piece 6 is disposed so as to come into contact with the tip of the portion 4 and close the opening 5 of the hook portion 4 .

The distal end of the relief piece 6 projects outward by L from the opening 5 of the hook portion 4.

Further, the bottom surface of the hook body 1 forms an inclined surface 9 rising upward with respect to the vertical line V toward the direction of the hook portion 4, and the angle of inclination thereof is preferably about 45°.

Furthermore, the lower end 10 of the bottom of the hook body 1 is shifted to the side opposite to the inclined surface 9 (to the left in FIG. 1) from the vertical line 2 from the pivot pin 2, which is the pivot point of the hook body 1. It is configured.

Next, its operation will be explained.

The order of engagement and disengagement between the bang pin 3 and the hook portion 4 is shown in FIG. 1 and FIGS. 2 to 6.

That is, in FIG. 1, when the hook is lowered from the crane toward the suspended object, the bang pin 3 contacts the inclined surface 9 of the hook body 1 at point P.

Furthermore, when the hook is lowered further than in FIG. 1, the hook body 1 is guided by the bang pin 3 as shown in FIG.
It escapes to the side opposite to the hook part 4 (to the left in the figure) and swallows the bang pin 3 in an attempt to restore itself with the hook's own weight.

At this time, since the relief piece 6 protrudes from the opening 5 by a length L, it is pushed open by the bang pin 3.

Next, if the hook that has swallowed the bang pin 3 is raised, the suspension by the hook becomes reliable, as shown in FIG.

Next, when the hook is lowered from the position 3 where the object to be hung is suspended, the relief piece 6 is brought into contact with the point IA by the bang pin 3 and pushed up, as shown in FIG.

In FIG. 5, the relief piece 6 contacts the hook body 1 at point B, and the point B acts as a stopper to prevent the relief piece 6 from rotating any further, and when the bang pin 3 passes upward, As shown in FIG. 6, the relief piece 6 falls from here toward the tip of the hook portion 4 due to its own weight.

Therefore, even if you pull up the hook in the state shown in Figure 6, the relief piece 6
Since the bang pin 3 is placed across the opening 5 and is in a closed state, the bang pin 3 will not be swallowed by the opening 5 of the hook portion 4 again.

〔effect〕

As described above, according to this invention, the hook suspended from a transport machine such as a crane can be reliably engaged with the bang pin of the suspended object by simply moving it vertically in a linear manner. Or it can be desorbed.

Therefore, the steps for automatic control of work can be significantly reduced, which is also significantly effective in terms of durability of the power mechanism.

[Brief explanation of drawings]

Figure 1 is a front view of the hook of this invention, Figure 2 is the first
The side views and FIGS. 3 to 6 are diagrams showing the engagement and disengagement relationship between the hook and the bang pin. In the figure, 1 is the hook body, 3 is the bang pin of the suspended object, and 4
5 is a hook portion, 5 is an opening, 6 is a relief piece, and 9 is an inclined surface.

Claims (2)

[Scope of utility model registration request] (1) The hook body is pivoted and suspended from above by a pin on the conveyor machine, and has a hook part whose internal upper surface and internal lower surface are inclined upward in order to hook the bang pin of the suspended object. , a relief piece whose upper end is pivotally attached to the opening of the hook portion with a pin and freely hangs so as to close the opening, and the bottom surface of the hook body is
The lower end of the bottom surface of the hook body is shaped like an inclined surface rising toward the direction of the hook portion, and furthermore, when the hook body is freely suspended from the pivot point, In the automatic locking hook, the center of gravity is set so as to be shifted by a necessary dimension on the opposite side of the inclined surface, and the length of the relief piece protrudes from the tip of the hook portion by the necessary distance, and the relief piece is pivotally attached to the hook body itself near the upper part of the inner upper surface of the hook portion, and its tip is pushed up by the bang pin that is guided by the inner upper surface of the hook portion and ascends. The automatic locking hook is configured such that the bang pin escapes upward and then falls toward the tip of the hook portion. (2) The slope of the bottom of the hook body is about 4 degrees with respect to the vertical line.
The automatic locking hook according to claim 1 of the utility model registration claim, which has an angle of 5°.