JP2518616Y2 - Corner drop off device - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to an angled attachment / detachment device used for adjusting the flow rate of a floodgate, a waterway, or the like.

(Prior art) In floodgates and waterways, rakes are used to adjust the flow rate. The corner drop has a thin plate shape. By engaging each side part with a pair of vertical grooves arranged on each side part of a water channel, etc., and lowering the corner drop into the flowing water, A part of this is blocked and the flow rate is changed.

The corner drop is used by stacking multiple sheets according to the flow rate to be adjusted. When changing the flow rate, it is necessary to change the number of corner drops that are immersed in the water, but gradually increase the corner drops in the water, or
It is not easy to stack the undercuts in water without damaging them. For this reason, a device that facilitates the lifting and lowering of a corner drop from the water is disclosed, for example, in Japanese Utility Model Publication No. 40-19395. According to this device, the corner drop can be easily pulled up from the water, but when the corner drop is suspended in water, an operation for detaching the device from the suspended corner drop is required. This operation must be performed underwater when the whole corner drop is immersed in water, which is dangerous and very troublesome.

Japanese Utility Model Publication No. 54-14418 discloses a device in which a corner drop can be automatically attached and detached. With this device, operation in water is not necessary. However, the device has a drawback that it has a complicated structure and has a large number of parts.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and an object thereof is to lift up and drop a corner drop and to attach and detach the corner drop immersed in water. It is an object of the present invention to provide a corner drop attachment / detachment device that does not require any operation. Another object of the present invention is to provide an angle drop attachment / detachment device which has a simple structure with a small number of parts and is extremely easy to operate.

(Means for Solving the Problems) The cornice attachment / detachment device of the present invention lifts and hangs the cornice that is raised and lowered by engaging the respective side portions in a pair of vertical grooves arranged to face each other. It is a drop-on / off device used for lowering, and has a through hole through which an engaging hook disposed on the upper surface of the drop-off can be inserted, and the engaging hook is inserted into the through hole to hit the upper surface of the drop-off. A main body part that can come into contact with the main body part, and one connecting shaft is rotatably disposed along the longitudinal direction on the upper surface of the main body part. The engaging hook is movable and is arranged so as to be able to rotate downward due to gravity, and the downward rotation allows the engagement hook to be bridged above the through hole and inserted into the through hole. A locking piece that can be locked, and a rotating piece that is attached to the middle of the connecting shaft and that has a contacting piece that can contact the rotating piece, and And one switching lever for selectively switching the locking piece between a position where it can be rotated upward against gravity and a position where it can be rotated downward due to gravity. By doing so, the purpose is achieved.

(Example) Hereinafter, the present invention will be described with reference to examples.

According to the present invention, the device for attaching and detaching a cornice is such that a thin plate-like cornice is placed, for example, on the bottom surface of a water channel or on a cornice previously arranged in the waterway, and in the waterway. Used when removing sardines. The corner drop is moved up and down by engaging each side portion with a pair of vertical grooves arranged so as to face each other on each side portion such as a water channel.

The corner drop attachment / detachment device of the present invention has a long plate-shaped main body 10 as shown in FIGS. Each longitudinal side portion of the main body portion 10 is provided with a longitudinal groove into which the corner drop side portion can engage.
41 and 41 are engaged. The main body 10 has, for example, a U-shape in a downward cross section, and the upper end of the corner drop 30 is fitted in the gap.

A pair of frame members 11 and 11 are arranged on the upper surface of the main body 10 at predetermined intervals in the width direction.
The frame members 11 and 11 are respectively bent so that the distance between the side portions in the longitudinal direction is slightly smaller. Then, the mounting shafts 12 and 12 are installed at the portions where the widthwise spacing is slightly smaller.
Is attached to each end of each chain 13 and 13.
The other end of each chain 13 is attached to the lower end of a chain 14 whose upper end is suspended by a hook of a hoist crane, for example.

Through holes 15 and 15 are provided on each side of the upper surface of the main body 10 in the longitudinal direction. Also, the main body
A pair of through holes 16a and 16b are also formed in the central portion of the upper surface of the top face 10 at predetermined intervals in the width direction. A pair of engaging hooks 31 are provided on the upper surface of the corner drop 30 at predetermined intervals in the through holes 15 and 15 provided on each side of the upper surface of the main body 10.
And 31 can be threaded. Each engagement hook 31 has, for example, a semi-elliptical shape protruding upward.

A single connecting shaft 21 is rotatably arranged on the upper surface of the main body 10 along the longitudinal direction thereof. Each side portion of the connecting shaft 21 has a through hole 15 and
15 along one side edge in the width direction. Further, the central portion of the connecting shaft 21 has a through hole 16 disposed in the central portion of the upper surface of the main body portion 10.
It is located between a and 16b and extends along the widthwise central side edge of one through hole 16a.

The through holes 15 of the main body 10 and the connecting shafts located on the sides of the through holes 15.
Locking pieces 22 and 22 are attached to each side of 21. Each locking piece 22 has a thin plate rectangular shape. The connecting shaft 21
The upper surface of one side of each locking piece 22 is attached to the
The other side portion extends to the side where each through hole 15 is provided. And
As each locking piece 22 rotates downward, each locking piece 22 is bridged above each through hole 15.

Each locking piece 22 has a size capable of being bridged above each through hole 15, and the engaging hooks 31 provided on the upper surface of the corner drop 30 are provided.
The size is such that it can pass through the inner space of the body by its rotation.

A rotating piece 23 is attached to the center of the connecting shaft 21. The lower surface of the rotating piece 23 is attached to the upper portion of the connecting shaft 21 so that the side portions thereof extend to the respective sides of the connecting shaft 21. The rotating piece 23 is the locking piece for the connecting shaft 21.
The side portion extending in the extending direction of 22 has a larger weight than the side portion extending to the other side, and the center of gravity thereof is located on the side portion on the extending direction side of each locking piece 22. The rotating piece 23 and each locking piece 22 are rotated downward by the gravity of the side of the rotating piece 23 where the weight is increased and the weight of each locking piece 22. 21 is also rotated in the same direction. The turning piece 23
Is bent downward, and the bent portion is one of the through holes provided in the central portion of the main body portion 10 when the turning piece 23 is turned downward. Mates with 16b. The other side end of the turning piece 23 is fitted into the other through hole 16a at the center of the main body 10 by turning the turning piece 23 upward.

In this embodiment, as described above, the through hole 16 is formed in the center of the main body 10.
Although a and 16b are provided, this is for securing a turning space of the turning piece 23, and the connecting shaft 21 is a main body so that the turning space of the turning piece 23 can be sufficiently secured. Part 10
If it is arranged on the upper surface of the
Is not necessary.

A switching lever 24 is provided on the upper surface of the main body 10 on the side of the position where the turning piece 23 is provided. The switching lever
24 is located on the side of the connecting shaft 21 which is opposite to the direction in which the locking piece 22 extends from the connecting shaft 21. The switching lever 24 is attached to the upper surface of the main body 10 so as to be rotatable in the longitudinal direction of the main body 10.

The switching lever 24 includes an abutment piece 24a, a lever portion 24b,
And a weight member 24c. The abutting piece 24 includes a supporting piece 17 provided on the upper surface of the main body 10 and one frame member 11 of the main body 10.
The lower part is rotatably supported by a support shaft 17b that is erected between a and a. The lower portion of the lever portion 24b is fixed to the side portion of the contact piece 24a, and the upper portion thereof extends above the upper surface of the corresponding contact piece 24a. The weight member 24c is fitted on the upper portion of the lever portion 24b.

When the switching lever 24 is turned to the side where the turning piece 23 is disposed, the contact piece 24a comes into contact with the side portion of the turning piece 23, and the turning piece 2a.
3 is rotated upward by the weight of the corresponding contact piece 24a and the weight of the weight member 24c. As a result, the connecting shaft 21 also rotates in the same direction, and each locking piece 22 attached to each side of the connecting shaft 21 also rotates upward. When the switching lever 24 is turned in the opposite direction, the contact piece 24a is separated from the turning piece 23, and the turning piece 23 is turned downward by its own weight and the own weight of each locking piece 22.

In the rotation area of the lever portion 24b of the switching lever 24, the regulation shafts 18 and 1 for regulating the rotation of the lever portion 24b in the respective rotation directions are provided.
9 are installed between the frame members 11 and 11, respectively.

Using the corner drop attachment / detachment device having such a configuration,
When suspending the switch to the specified position, first select the switching lever.
The contact piece 24a is rotated so that the contact piece 24a does not contact the rotation piece 23. As a result, each locking piece 22 rotates downward due to its own weight and the own weight of the rotating piece 23, and bridges above each through hole 15. In such a state, the upper end of the corner drop 30 is fitted to the main body 10, and the engaging hooks 31 on the upper surface thereof are inserted into the through holes 15 and 15 arranged on each side of the main body 10. Let When each engaging hook 31 is inserted into each through hole 15, each locking piece 22 is in a state of being able to freely rotate upward, and therefore each locking piece 22 is free to rotate.
The engaging hooks 31 are pressed by the engaging hooks 31 and rotate upward, so that each engaging hook 31 penetrates the through hole 15. Then, when each engaging hook 31 is inserted through the through hole 15, each engaging piece 22 is disengaged from the upper end surface of each engaging hook 31, and is rotated downward by its own weight and the own weight of the rotating piece 23 to be engaged hooks. It passes through the space inside 31 and is bridged above the through hole 15.

In this state, when the whole of the corner drop attachment / detachment device is lifted upward, the engaging hooks 31 of the corner drop 30 are locked by the locking pieces 22 bridged above the through hole 15 and both locking pieces 22 and Suspended at 22. As a result, the entire drops 30 are suspended by the locking pieces 22.

Then, the switching lever 24 is rotated so that the contact piece 24a thereof contacts the rotation piece 23 in a state where the entire corner drop 30 is suspended by the respective locking pieces (see FIG. 2). (See dotted line).
The switching lever 24 presses the turning piece 23 by the weight member 24c and the like, but the locking piece 22 is lifted by the hanging of the corner drop 30, so that the turning piece 23 turns. do not do.

In such a state, each side portion of the corner drop 30 is engaged with a vertical groove such as a water channel, and the corner drop 30 is suspended along the vertical groove. Then, when the corner drop 30 reaches the bottom of the water channel or the like, or the previously arranged corner drop top surface, the downward movement of the corner drop 30 is stopped. In this state, when the corner drop attachment / detachment device is further lowered, the engaging hooks 31 of the corner drop 30 are
It will move upward with respect to the attachment / detachment device, and the locking piece
The locked state with 22 is released. In this case, since the contact piece 24a of the switching lever 24 is in contact with the rotating piece 23, when the engagement state of the engagement piece 22 with the engagement hook 31 is released, the engagement piece 22 is not attached. The force for rotating downward does not work, the rotating piece 23 is pressed by the contact piece 24a and rotates upward, and the connecting shaft 21 also rotates in the same direction, whereby the locking piece 22 rotates upward. To be done. When the locking piece 22 is rotated upward, as shown in FIG. 3, the locking piece 22 passes through the space inside the engaging hook 31 and is disengaged from the engaging hook 31. Then, if the whole of the detachment device is pulled up, only the detachment device is raised and the detachment device is dropped.
30 cannot be raised. As a result, the corner drop 30 is placed at a predetermined position.

Next, the case of hoisting the corner drop 30 arranged in a waterway or the like will be described. In this case, first, the switching lever 24
Is rotated so that the contact piece 24a does not contact the rotation piece 23. As a result, each locking piece 22 rotates downward due to the weight of the rotating piece 23 or the like, and becomes a bridged state above each through hole 15. However, since only the gravity acts on the rotating piece 23 and each locking piece 22, each locking piece 22 can be pressed upward by a pressure higher than a predetermined pressure and rotated.

In such a state, the corner drop attachment / detachment device as a whole is lowered by engaging each side portion with a vertical groove such as a water channel. When the whole corner drop attachment / detachment device is lowered, the engaging hooks 31 arranged on the upper surface of the corner drop 30 are fitted into the through holes 15 on the upper surface of the main body. Then, as the whole attachment / detachment device descends, the engagement hook 31 penetrates through the through hole 15 while pushing up the locking piece. Further, when the entire attaching / detaching device is lowered, the engaging piece 22 comes out of contact with the upper surface of the engaging hook 31, and the engaging piece 22 pivots downward due to gravity and passes through the space in the engaging hook 31. And is bridged above the through hole 15.

In such a state, the entire attachment / detachment device is hoisted up, and as shown in FIG. 2, the engaging hook 31 is hoisted by the locking piece 22 bridged above the through hole 15, and the whole corner drop 30 is lifted. Be hung up. When the suspended corner drop 30 is to be detached from the attachment / detachment device, the angle drop 30 is leaned against a flat surface, and the attachment / detachment device is slightly lowered from such a state, and the switching lever 24 is brought into contact with the contact piece 24a. It suffices to rotate so as to contact the rotating piece 23. As a result, the locking piece 22 pivots upward, disengages from the engaging hook 31, and the corner drop 30 is disengaged from the attaching / detaching device.

(Effect of the device) In this way, the corner drop attaching / detaching device can be operated by switching only one switching lever in advance in this way.
You can hang and drop the corner drop,
No need to operate in water. The corner drop attachment / detachment device of the present invention has a simple structure, has a small number of parts, and is extremely easy to manufacture. The operation at the time of hoisting and hoisting the corner drop only requires rotating the switching lever, and the operability is significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a corner drop attaching / detaching device of the present invention,
FIG. 2 is a vertical sectional view thereof, and FIG. 3 is a vertical sectional view for explaining the operation. 10 …… Main body, 15 …… Through hole, 21 …… Connecting shaft, 22 …… Locking piece,
23 …… Rotating piece, 24 …… Switching lever, 24a …… Abutting piece, 24b
...... Lever part, 24c ...... Weight member, 30 ...... Corner drop, 31 ...... Engagement hook.

Claims (1)

(57) [Scope of utility model registration request] 1. A corner drop attachment / detachment device for lifting and lowering a corner drop which is engaged with each side and raised and lowered in a pair of vertical grooves arranged opposite to each other. A main body having a through hole through which the engaging hook disposed on the upper surface can be inserted, the engaging hook being inserted through the through hole, and being able to fall into contact with the upper surface, and the upper surface of the main body, One connecting shaft is rotatably arranged along the longitudinal direction, and by being attached to each side of the connecting shaft, the connecting shaft can be rotated in the vertical direction and can be rotated downward by gravity. And a locking piece that bridges above the through hole by rotating downward and can lock the engaging hook inserted in the through hole, and a middle part of the connecting shaft. A rotating piece is attached to the rotating piece, an abutting piece capable of contacting the rotating piece is provided, and the locking piece is rotated upward against gravity. That the position and angular drop detachment device having a single switching lever selectively switched between a position that can be pivoted downwardly by gravity, the.