JP2807405B2 - Grab fry - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for grasping and lifting an object.

[0002]

2. Description of the Related Art Conventionally, to open the mouth of a plastic bag or a sheet-like bag made of a soft material, open it by hand.
The mouth is sucked open by vacuum suction.

[0003]

However, in the manual opening method, it takes time to grasp and fry the sheet, and it is difficult to open the sheet smoothly. Further, in the method of the vacuum suction opening, the apparatus itself becomes large, and large-scale equipment such as a power source, a vacuum pump and the like are required, and it is difficult to simplify the apparatus. In view of the above, it is an object of the present invention to provide a simplified device for easily grasping and lifting the opening of the bag.

[0004]

According to the present invention, there is provided a grab-and-fry tool comprising:
A pair of claws openable and closable at the tip, a protrusion provided inward of the middle of the claw, a pressing body for opening and closing the tip of the claw by contacting the protrusion, and the pressing body When the pressing body is pushed from the base end side to the distal end side, the pressing body comes into contact with the projection to isolate the tip end of the claw, and the rod-shaped body is provided. When the tip of the body projects forward from the tip of the claw and abuts against the object to be gripped and pulls back the pressing body, the tip of the rod-like body retreats proximally from the tip of the claw and the tip of the claw The device is characterized in that the part is closed and the object to be gripped is gripped by the tip.

[0005]

According to the gripping and frying tool of the present invention, the pushing body is pushed out so that the pushing body comes into contact with the tip of the projection provided at the middle part of the claw, and the tip of the claw is lifted and separated from each other, and at the same time, the rod-shaped The tip of the body protrudes from the isolated tip of the nail. The tip of the protruding rod is pressed against the grasping and lifting point of the grasped object to fix the grasping and lifting device, and the tip is used as a fulcrum to strongly push the claws toward the grasped object, thereby isolating the object. The distal ends of the pair of claws are pressed toward the pressing point near the distal end of the rod-shaped body of the object to be grasped. At the same time, the protruding part comes off from the pressing body that has come into contact with the above-mentioned abutting part, the tip part of the rod-shaped body retreats from the tip part of the claw, and the tip parts of the pair of claws are closed. You can grab things. When gripped by the gripping device as described above, wrinkles are generated at the place where the grip is lifted, air enters through the gap between the wrinkles, and when pulled, one of the stacked objects is peeled off, and easily one by one. Can be fried. When the object to be gripped is removed, it can be easily removed by pushing the pressing body again.

As described above, the present apparatus can be easily operated and easily grasped and lifted without requiring large-scale equipment.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 shows a plan view of the gripper 1. FIG. 2A is a front view of the gripper 1, FIG. 2B is a left side view of FIG.
Shows a right side view of (A). FIG. 3 is XX of FIG.
FIG.

The gripper 1 comprises a claw 3, a rod 5, a pressing body 7, and a cylinder 9. The pair of claws 3 are formed of a spring having a pair of opposing key-shaped bent projections 11 at the center, and the tip portions 3a of the claws 3 are in contact with each other to form a cutting edge for gripping an object. The pair of claws 3 are integrated at a base end 3b thereof, and the base end 3b is in contact with the center of the cylinder base 9b.

The pressing body 7 is accommodated in the cylinder 9 so as to be capable of reciprocating operation, and the tip of the pressing body 7 forms a taper 7a and is integrated with the rod body 5. The tip 5a of the rod 5 is
Is held inside the distal end portion 3a. On the other hand, the base end 7b of the pressing body 7 is extended from the cylinder base 9b to the outside while keeping the reciprocating working distance of the pressing body 7, and has a pressing plate 15 at the end,
The base end 7b has a through groove 19 for accommodating the base end 3b of the claw 3 in the diameter direction.

The cylinder 9 abuts the claw 3 on the outside, and a through groove 20 provided on the tip end side of the cylinder 9 from the protrusion 11 to the tip 3a of the claw 3 as shown in FIGS. It is stored in. The method of using the gripping and frying tool 1 will be described with reference to FIGS. FIG.
5, 6, and 7 are explanatory views of each operation state with FIG. 3 as a normal state.

As shown in FIG. 6A, a vinyl bag 23 as shown in FIG.
Next, the bag 23 in which the tip 25 of the bag 23 is fixed by the fixture 27 and suspended will be described. The gripper 1 fixes the cylinder 9 and pushes the pressing plate 15 to push out the pressing body 7. At this time, as shown in FIG. 4, the tip 21 of the projection 11 of the claw 3 is lifted up while abutting on the taper 7 a at the tip of the pressing body 7, and comes into contact with the outer peripheral surface of the pressing body 7. As a result, the tips 3a of the claws 3 are lifted and separated from each other, and
Of the claw 3 protrudes from the separated distal end 3a. The inner surface 11a of the projection 11 of the claw 3 and the cylinder 9
Is separated from the outer peripheral corner 9c of the cross section 9a facing the through hole 20 of FIG.

Subsequently, the tip 5 of the projecting rod 5
a is pushed up to the point P of the opening of the bag 23, and the cylinder 9 is strongly pushed out toward the point P of the opening of the bag 23.
As shown in FIG. 5, the cylinder 9 is
a and a distance between the outer peripheral corner 9c and the inner surface 11a of the projection 11 of the claw 3 comes into contact with the outer peripheral corner 9c,
A space V is opened between the cylinder base 9b and the base end 3b of the claw 3b, the claw 3 is further pushed out, and the distal end 21 of the projection 11 of the claw 3 that has been in contact with the pressing body 7 comes off from the pressing body 7. By instantaneously sliding down the taper 7a of the pressing body 7 by the spring tension, the pawl 3 instantaneously moves in the space V with the cylinder base 9b, and the pawl 3
Is pressed so as to pierce a point near the opening P of the bag 23. At the same time, the tip 5a of the rod 5
The tip 3a of the claw 3 is closed and grips a point near the opening P of the bag 23 pressed as shown in FIG. When the gripper is pulled in the gripped state, as shown in FIG.
5, the mouth of the plastic bag 23 can be easily opened. To release from the gripped state, the pushing body 7 is pushed out again, the tip 3a of the claw 3 is isolated, and the bag 23 is opened.

The gripping and frying device 1 as in the above embodiment is particularly suitable for peeling off objects that are in close contact with each other and are difficult to peel off one by one, such as a soft bag 23 made of vinyl. If the gripping and frying tool 1 is used in place of the suction device of the conventional bag opening device by vacuum suction, the bag can be easily opened,
The same effect as the vacuum suction method can be obtained without a large-scale device.

For example, instead of the vacuum suction port, it is also possible to mount the gripper 1 to be mechanized. As an example, it is possible to automatically control the operation of the cylinder 9 and the pressing body 7 by using the following air or hydraulic operation method. While the cylinder 9 is stopped, the pressing body 7 is pushed out by air or hydraulic pressure, and then the whole is advanced to push the tip 5a of the rod 5 against the bag 23 as described above. Then cylinder 9
Can be strongly pushed out by air or hydraulic pressure in the direction of the bag 23, grasped by the tip 3a of the claw 3, and pulled so as to retreat as a whole to open the bag.

[0015]

According to the present invention, the gripper is simplified without the need for large-scale equipment such as a power source, a vacuum pump, and the like.
Each of the objects to be grasped stacked by the grasping and frying device can be easily grasped and fried. In particular, it is suitable for grasping and frying the stacked flexible sheets one by one.

[Brief description of the drawings]

FIG. 1 is a plan view of a grab-and-fry tool.

FIGS. 2A and 2B are explanatory views of a gripping and frying tool, wherein FIG. 2A is a front view, FIG. 2B is a left side view of FIG. 2A, and FIG. 2C is a right side view of FIG.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a state diagram in which a pressing body is pushed out from the state of FIG. 3;

5 is a diagram showing a state in which the tip of the rod-shaped body is pushed up against the object to be gripped from the state shown in FIG. 4 to push out the cylinder, and one corner of the cylinder comes into contact with the protrusion.

6A and 6B are diagrams showing a state where a bag is suspended, wherein FIG. 6A is a partial view of an upper portion of the bag and FIG. 6B is a diagram showing a state where the bag is suspended on a plate.

7 is a view showing a state where the bag of FIG. 6 is opened.

[Explanation of symbols]

1, gripping and frying tool 3, claw 3a, tip of claw 5, rod-shaped body 5a, tip of rod-shaped body 7, pressing part 9, cylinder 11, projection 21, projection Tip of

Claims (1)

(57) [Claims] 1. A pair of claws openable and closable at their tips, a protrusion provided inward of the middle of the claws, and a pressing body for opening and closing the tips of the claws by contacting the protrusions. And a rod-shaped body provided at the distal end of the pressing body. When the pressing body is pushed from the base end side to the distal end side, the pressing body comes into contact with the projection and isolates the distal end of the claw. At the same time, when the distal end of the rod protrudes forward from the distal end of the claw and abuts against the object to be gripped, and the pressing body is pulled back, the distal end of the rod retreats proximally from the distal end of the claw. A gripping and frying device, characterized in that the tip of the claw is closed and the object to be gripped is gripped by the tip.