JPS6339495B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a flexible hand for a cargo handling device used when carrying cargo of various types (shape, size, hardness, etc.).

(Prior art) As a conventional hand for a cargo handling device, for example, the 9th hand
The devices shown in FIGS. 1 to 11 are known.

First, in the cargo handling device hand A shown in FIG. 9, one end of a vacuum hose 102, 103 is connected to a circular flat rubber suction cup 100, 101, and a connector 104 is provided at the other end of the vacuum hose 102, 103. Bakyum Horse 102,
103 is one vacuum hose 105, and the vacuum hose 105 is equipped with a vacuum device 106.
It was a combination of

Therefore, the vacuum device 106 was operated to suck out air from the vacuum hoses 102 and 103, and the baggage a was sucked up by the rubber suction cups 100 and 101.

Next, the cargo handling device hand B shown in FIG.
A rubber suction collar 108 is provided on the outer periphery of a rectangular flat plate 107 made of metal, a suction hole 109 is provided in the center of the flat plate 107, one end of a vacuum hose 110 is connected to the suction hole 109, and the other end of the vacuum hose 110 is A vacuum device 111 was provided.

Therefore, the vacuum device 111 was operated to suck out air from the vacuum hose 110, and the baggage b was sucked by the rubber suction collar 108.

Next, the cargo handling device hand C shown in FIG.
Rubber suction collar 11 on the vacuum device 112 itself
3 was provided.

Therefore, the vacuum device 112 was operated to suck out the air, and the baggage c was sucked by the rubber suction collar 113.

(Problems to be Solved by the Invention) However, in the case of such a hand for a cargo handling device, the rubber suction cups 100, 101 and the rubber suction collars 108, 11 that are brought into contact with the flat surface of the cargo are
Since the baggage was lifted and transported by suctioning the baggage with a suction member of 3rd grade while eliminating leakage with the outside air, adhesion between the baggage and the suction member was required, and a clean, smooth surface without any irregularities was required. There was a problem that only flat objects could be lifted, which limited the types of objects that could be handled.

Further, since the baggage is lifted by partial suction force, a vacuum device that generates a strong vacuum suction force is required.

(Means for Solving the Problems) Therefore, the present invention was made for the purpose of solving the above-mentioned problems. A hole is provided in the hole, one end of an air hose is connected to the hole, a hanging device for holding the flexible sheet is provided near the hole, and an air suction device is provided at the other end of the air hose. A plurality of air bags are provided radially from approximately the center of the flexible sheet toward the outer circumference, one end of an air tube is connected to the air bag, and a pneumatic pressure source is connected to the other end of the air tube. and a control for switching between an expanded state in which the air bag and an air pressure source are communicated, and a suction state in which the air hose and an air suction device are communicated, and the air bag is disconnected from the air pressure source and released to the atmosphere. The configuration includes a switch.

(Function) Next, turn the control switch to the expanded state and supply compressed air from the air tube to the air bag. Then, the flexible sheet expands due to the air bags provided radially. Move it to the top of the bag in this state. As a result, the upper surface of the cargo is covered by the expanded flexible sheet.

Next, switch the control switch to the suction state side, suck air from the air hose, and remove air from the air bag.
The flexible sheet wraps the cargo and continues to suck out air from the air hose, making the flexible sheet stick to the cargo.

Then, by pulling up or moving the flexible sheet that has wrapped and sucked the baggage with the cargo handling device, the baggage can be lifted or transported.

In addition, when separating the luggage from the flexible sheet, it is done by turning off the control switch or placing it in the expanded state.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
First, the configuration of the embodiment shown in FIGS. 1 to 5 will be explained.

Reference numeral 1 denotes a flexible sheet consisting of disk-shaped plates 2 and 3 made of rubber material and reinforcing thread 4 sandwiched and bonded between the plates 2 and 3. Suction holes 2a and 3a are opened in the centers of 2 and 3, respectively.

This flexible sheet 1 is formed to have excellent deformability as a whole by using plates 2 and 3 made of thin rubber material, and the sheet area is wide enough to wrap around the cargo to be lifted. do.

Reference numeral 5 denotes a hanging device, which is provided to hold the flexible sheet 1 on a hanging fitting 7 fixed to the suction holes 2a, 3a of the flexible sheet 1 with rivets 6. The hanging device 5 is provided on a cargo handling device 8 for lifting and transporting.

9 is an air hose, and the first
The air hose 91 is connected to an air hose attachment fitting 10 fixed to the hanging fitting 7,
The second air hose 92 at the other end is connected to the air suction device 11 .

In addition, between both air hoses 91 and 92, there is a first
A solenoid valve 12 is provided, and this first solenoid valve 12 allows both air hoses 91,
92 or one of the first air hoses 9
1 and the atmosphere release hose 93 are switched to communicate with each other.

Numeral 13 is an air bag, and four air bags are provided radially from the center of the flexible sheet 1 toward the outer circumference. are doing.

Note that each air bag 13 has an air circulation hole 14 formed therein.
are respectively provided with air tube fittings 15.

Reference numeral 16 denotes an air tube, one end of which is a branch air tube 160 (branched from the first air tube 161 by a connector 17).
is connected to the air tube fitting 15, and the second air tube 162 at the other end is connected to the compressor 18, which is an air pressure source.

In addition, the first and second air tubes 161, 16
A second solenoid valve 19 is provided between the two air tubes 161 and 162, or the first air tube 161 and the atmosphere opening tube 163 are connected to each other. Switch whether to enable or disable.

A control switch 20 is connected to the first solenoid valve 12 and the second solenoid valve 19, and is composed of a first solenoid switch 201 and a second solenoid switch 202, and both switches 201 and 202 are OFF. At this time, both the first air hose 91 and the first air tube 161 are open to the atmosphere, and when one of the second solenoid switches 202 is turned on, the second solenoid valve 19 is switched and the high pressure of the compressor 18 is When the air enters the air bag 13 and the other first solenoid switch 201 is turned on, the first solenoid valve 12 is switched and the air suction device 11 sucks the air between the flexible sheet 1 and the cargo. It becomes a suction state.

In addition, the first and second solenoid switches 201,
The switches 202 are linked so that when one switch is turned on, the other switch is turned off, so that both switches 201 and 202 are not turned on at the same time.

Next, the operation of the embodiment will be explained with reference to FIGS. 6 to 8.

(b) When the flexible hand is not in use Because the compressor 18 is not operating,
The flexible sheet 1 is in a deflated state due to its flexibility to freely deform.For example, as shown in FIG.
When the flexible sheet 1 is hung, the flexible sheet 1 becomes long and slender.

(b) Preparation stage for lifting cargo Then, the compressor 18 and the air suction device 11 are operated, and then the second solenoid switch 202 of the control switch 20 is turned on.

By turning on this switch, the compressor 18
The compressed air from the second air tube 162 →
1st air tube 161 → branch tube 16
The air bag 13 provided on the flexible sheet 1 is inflated by the compressed air, and the flexible sheet 1 expands into a disk shape as shown in FIG. In this state, move it to the top of the luggage L. As a result, the luggage L
The upper surface part of is covered with this expanded flexible sheet 1.

(c) When lifting and transporting cargo Next, when the second solenoid switch 202 of the control switch 20 is turned off, the compressed air is removed from the air bag 13, and the flexible sheet 1 exhibits its original flexibility and lifts the cargo L. It deforms to fit the luggage L according to its shape.

Then, at the same time as the second solenoid switch 202 is turned off, the first solenoid switch 202 is turned off.
01, the air between the flexible sheet 1 and the luggage L is sucked by the air suction device 11 via the first air hose 91 → second air hose 92, and the flexible sheet 1 It sticks to luggage L.

By continuing to suck air with the air suction device 11, a grip force sufficient to lift the load L is exerted, and as shown in FIG. 8, the load L can be lifted by pulling up the cargo handling device 8. By moving the cargo handling device 8, the cargo L can be transported.

(d) When releasing the cargo After transporting the cargo L to a predetermined position with the cargo L wrapped and suctioned, the first solenoid switch 201 of the control switch 20 is activated.
If you turn off the suction state, the baggage L can be released, and many pieces of baggage L can be released.
When transporting the 2nd solenoid switch 2
02, spread the flexible sheet 1, and repeat the above-mentioned operation.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, the flexible sheet is not limited to the one formed by two plates sandwiching reinforcing threads as in the example, but can also be formed by one sheet or two or more sheets stacked one on top of the other. Furthermore, the shape is not limited to a disk, but may be a polygon or the like.

In addition, although the air bag shown has four straight radial air bags, as long as the flexible sheet can be expanded, the number of air bags may be more than one, and the shape of the air bag may not be straight. It may also be curved.

In addition, the control switch may be any switch that can switch between a state in which the flexible sheet is expanded by a pneumatic source and a state in which it is sucked in by an air suction device, and may be a switch installed in each of two solenoid valves. Alternatively, the solenoid valve may be omitted and the operating switch for the air pressure source and air suction device may be used as a control switch.

(Effects of the Invention) As explained above, in the flexible hand for a cargo handling device of the present invention, the cargo is lifted and transported while the cargo is wrapped and suctioned by the flexible sheet. The baggage can be uneven or rounded, and the excellent effect of being able to handle it without being restricted by the shape of the baggage and regardless of its size, hardness, etc. can be obtained.

In addition, since the suction area for the cargo is wide, unless the cargo is extremely heavy, there is no need for a vacuum device that generates a strong vacuum suction force. By continuing to do this, you will be able to lift the load sufficiently.

Furthermore, since the flexible sheet can be expanded using the air bag, it is possible to quickly and orderly carry out the preparation work for lifting the luggage.

Furthermore, by using a flexible sheet, it can be folded into a long and thin shape when not in use, so the storage space can be small.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a flexible hand for a cargo handling device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the flexible hand for a cargo handling device according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a flexible hand for a cargo handling device according to an embodiment of the present invention. FIG. 4 is an exploded perspective view showing the flexible sheet of the hand, FIG. 4 is a perspective view showing the air bag of the flexible hand for cargo handling equipment according to the embodiment of the present invention, and FIG. 5 is a piping system of the flexible hand for cargo handling equipment according to the embodiment of the present invention. FIG. 6 is a perspective view showing a storage state of the flexible hand for a cargo handling device according to an embodiment of the present invention when it is not in use, and FIG. 7 is a diagram showing the flexible hand for a cargo handling device according to an embodiment of the present invention lifting a load. FIG. 8 is a perspective view showing the state of lifting a load by the flexible hand for a cargo handling device according to an embodiment of the present invention; FIGS. 9, 10, and 11 show a conventional hand for a cargo handling device. FIG. 1... Flexible sheet, 2a, 3a... Suction hole, 5...
Hanging device, 9... Air hose, 11... Air suction device, 13... Air bag, 16... Air tube, 18... Compressor (air pressure source), 20... Control switch.

Claims (1)

[Claims] 1 A hole is provided approximately in the center of the flexible sheet, one end of an air hose is connected to the hole, a hanging device for holding the flexible sheet is provided near the hole, and the other end of the air hose is connected to the hole. An air suction device is provided at the end, and a plurality of air bags are provided radially from approximately the center of the flexible sheet in the outer circumferential direction, one end of the air tube is connected to the air bag, and the other end of the air tube is connected to the air bag. A pneumatic source is connected to the air bag, and an expanded state that communicates the air bag and the air pressure source communicates with the air hose and the air suction device, and allows the air in the air bag to be released to the atmosphere. A flexible hand for cargo handling equipment characterized by being equipped with a control switch for switching between a suction state and a suction state.