JPS5845296Y2 - Automatic mating/unhooking device - Google Patents

Description

[Detailed description of the invention] The present invention utilizes the movement of an object to be moved up and down, such as a gate, to freely engage and detach the object from an upper fixed body, or from a lower movable object to the object. This invention relates to an automatic hooking/unhooking device for continuous hooking.

Conventionally, a hydraulic cylinder was used to manually lock the gate etc. to the fixed body above, but this method not only makes the operation complicated, but also increases the chances of erroneous operation. There was a problem in that the number of cases increased and it also became dangerous.

The present invention was developed in view of the above-mentioned problems, and it is an object of the present invention to provide an automatic hooking/unhooking device that can automatically perform the required engagement/disengagement by utilizing the vertical movement of a gate or the like.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on the accompanying drawings.

In the drawing, reference numeral 1 denotes an elevating mechanism for a gate 3 disposed on an upper fixed body 2. The elevating mechanism 1 transmits, for example, the rotation of an electric motor 4 to a drum 6 via a speed reducer 5.
The gate 3 is raised and lowered by a wire rope 7 wound around the gate 3.

By the way, the automatic fitting/unhooking device 8 according to the present invention includes a hook device 10 that is pivotally suspended from a pivot shaft 9 installed at a predetermined position of the fixed body 2, and a hook device 10 that is fixed at a predetermined position above the gate 3. It consists of a retaining pin 11.

The hook device 10 includes an inclined guide surface 13 that allows the engagement pin 11 to receive and swing backward on the lower jaw surface of the hook portion 12 so as to be able to move and stop in a predetermined manner by contacting and moving with the engagement pin 11. In addition, the front surface of the hook handle 14 is provided with a guide surface 15 for two-step backward swinging to return it to the vertical position.
A hook body 18 having a protrusion 17 on the top surface of the hook handle 14 that maintains the pin receiving posture by engaging with the claw 16 that comes into contact with the hook body 18; and the posture holding protrusion of the hook body 18. A plate body is formed having a protrusion 19 that can be connected to the protrusion 17 of the hook body 18 so that the claw 16 engaged with the hook 17 can be pushed up and held when the hook body 18 swings backward to return to the vertical position. The hook body 18 is provided with a cam plate 20 which is pivotally connected to the pivot shaft 9 in an overlapping manner so as to be rotatable relative to the hook body 18 within a predetermined range.

In this embodiment, the hook body 18 and the cam plate 20 are rotated relative to each other within a predetermined range.
An example is shown in which a pin 21 is provided protruding from the upper part of the cam plate 8, and an arcuate guide hole 22 is provided at a position facing the pin 21 of the cam plate 20.

Further, the cam plate 20 is provided with two notched grooves 23 as means for maintaining the posture at a predetermined position, and a brake piece 24 is brought into contact with the notched grooves 23.

Note that the pawl 16 and the brake piece 24 are urged by a spring 25.

26 is a control panel for controlling the rotation of the electric motor 4;
Operation bundle 27. 2 limit switches 28. 29
, the electric motor 4 based on the detection signal from the load switch 30.
It rotates forward and reverse and stops.

That is, when the operating bundle 27 is in the open position, the electric motor 4 is rotated in a direction to lift the gate 3, and the gate 3 is lifted up to the upper limit switch 28, ignoring the lower limit switch 29.

Then, the electric motor 4 is rotated in the opposite direction at the upper limit switch 28, and when the pulley load detected by the load switch 30 becomes less than a set value, the electric motor 4 is stopped.

Next, when the operating bundle 27 is in the closed position, the electric motor 4
is rotated in the direction to pull up the gate 3 in the same way as above.

Then, at the lower limit switch 29, the electric motor 4
is reversed to lower the gate 3, and when the pulley load detected by the load switch 30 becomes less than a set value, the electric motor 4 is stopped.

Next, when the operating bundle 27 is in the stop position, the electric motor 4
maintains the stopped state, and when the operating bundle 27 is returned to the state before stopping, the electric motor 4 rotates in the same direction as before stopping,
Further, when the operation bundle 27 is placed in a state opposite to that before stopping, the electric motor 4 is also set to rotate in the opposite direction.

The upper limit switch 28 is activated when the operation bundle 27 is in the open position, and the gate 3 is pulled up and the retaining pin 11 fixed to the gate 3 is placed on the upper guide surface of the two-step backward swing guide surface 15. When the contact occurs, the rotation of the electric motor 4 is reversed via the control panel 26.

In addition, the lower glue switch 29 is connected to the operation bundle 27.
When the locking pin 11 comes into contact with the lower guide surface of the guide surface 15 for two-step backward swing, the control panel 2
6, the rotation of the electric motor 4 is reversed.

The load switch 30 is disposed on a pulley 31 for guiding the wire rope 7 unwound from the drum 6 to the gate 3. When the load applied to the pulley 31 exceeds a set value, the load switch 30 becomes a closed circuit. If it is less than the value, the power supply circuit of the motor 4 is opened when the gate 3 is lowered, and the motor 4 is allowed to rotate only when the gate 3 is raised.

The operation bundle 27 is operated by the load switch 30 to control the gate 3.
When the electrical circuit in the direction of lowering the motor 4 is opened, it will not work if the position is the same as before the motor 4 stopped, and will work only if it is in the opposite position.

For example, if the operation bundle 27 is in the open position before the electric motor 4 is stopped, the electric motor 4 will not rotate as long as it is open, and will rotate and pull up the gate 3 when it is closed.

Furthermore, if the operating bundle 27 is in the closed position before the electric motor 4 is stopped, when the operating bundle 27 is opened, the gate 3
will be salvaged.

The operation of the present invention constructed as described above will be explained based on FIGS. 4 to 9.

FIG. 4 shows a state in which the game 1-3 is hooked by the automatic fitting/unhooking device 8 of the present invention and the water gate is opened.

When the operation bundle 27 is moved to the closed position from this state, the electric motor 4 is driven via the control panel 26, the gate 3 is further lifted up via the reducer 5, the drum 6, and the pulley 31, and the retaining pin 11 is moved to the hook body. 18 two-step backward swing guide surface 15
At the same time, the hook body 18 swings backward as shown in FIG. can be kept.

At the same time, the lower limit switch 29 is activated by the limit switch raising/lowering protrusion 32 protruding from a predetermined position of the gate 3, and the rotation of the electric motor 4 is reversed, so that the gate 3 is lowered and the water gate is closed.

(See FIG. 6) In this state, the wire rope 7 is loosened, so no load acts on the load switch 30 disposed on the pulley 31, and the load switch 30 operates to stop the electric motor 4.

Next, when the operating bundle 27 is placed in the open position, the electric motor 4 rotates in the direction of lifting the gate 3, and as shown in FIG. In the process up to contact, the cam plate 20 rotates together with the hook body 18 as the left end of the guide hole 22 of the cam plate 20 is pushed by the pin 21 as the hook body 18 rotates, and the protrusion 19 pushes up the pawl 16, thereby securing the cam plate 20. Matching pin 11 is 2
When abutting against the upper guide surface of the stepwise backward swing guide surface 15, the claw 16 comes into contact with the protrusion 19 of the cam plate 20, and the claw 16 is removed from the protrusion 17 of the hook body 18.

At the same time, the upper limit switch 28 is activated by the protrusion 32 protruding from the gate 3, and the direction of rotation of the electric motor 4 is reversed.
The hook body 18 also swings forward while being in contact with the cam plate 20, but the cam plate 20 remains stationary because it is pressed against the brake piece 24.

Next, as shown in FIG. 8, when the retaining pin 11 descends to the lower guide surface of the two-step backward swing guide surface 15, the pin 21 contacts the right end of the guide hole 22, and the cam plate 20
It starts to rotate with.

At this time, the claw 16 connects the protrusion 19 of the cam plate 20 with the hook body 1.
Since the protrusion 17 of 8 is continuous, the hook body 18 rotates until it comes into contact with the collar 33 and the cam plate 2.
The protrusion 19 of 0 also comes off from the claw 16.

Further, the gate 3 is lowered, the retaining pin 11 is hooked to the hook part 12, the water gate is opened, the load switch 30 is activated, the electric motor 4 is stopped, and the state shown in FIG. 4 is reached.

As described above, according to the present invention, the gate can be opened and closed with an extremely easy operation of simply moving the operating bundle in three stages: open, close, and stop, and the gate can be latched reliably and quickly. Therefore, the present invention has an extremely large effect in that the complexity of operations and the risk of erroneous operations, which are conventional, are greatly reduced.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing the present invention and related devices, FIG. 2 is a side view of the present invention, and FIG. 3 is a front view of the cam plate of the present invention.
4 to 9 are explanatory diagrams of the operation of the present invention. 8 is an automatic fitting/unhooking device, 10 is a hook device, 11 is an engagement pin, 12 is a hook portion, 13 is an inclined guide surface, 14 is a hook handle portion, 15 is a guide surface for two-stage backward swinging, 16 is a claw,
17 is a protrusion, 18 is a hook body, 19 is a protrusion, and 20 is a cam plate.

Claims (1)

[Scope of utility model registration request] An automatic hooking/unhooking device for attaching and detaching an object to an upper fixed body or a lower movable object to the object by utilizing the movement of the object to be moved up and down, such as game 1-. The hook device, which is pivotally suspended from the upper object, can be swung and stopped in a predetermined manner by contacting and moving with a retaining pin fixed to the lower object. An inclined guide surface is provided on the front surface of the hook handle for accepting and swinging the dowel backward, and a guide surface for swinging backward in two steps is provided on the front surface of the hook handle, and the top surface of the hook handle is abutted against this guide surface. a hook body comprising a protrusion that maintains a pin-receiving posture by engagement with a claw; A plate body is formed having a protrusion part that can be connected to the protrusion part of the hook body so as to be able to be pushed up and held when swinging, and a cam plate is connected to the hook body in an overlapping manner so as to be rotatable relative to the hook body within a predetermined range. An automatic fitting/unhooking device characterized by being equipped with a hook.