JPH0213439Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a clamping device for a cargo handling machine in an unmanned cargo handling system.

[Conventional technology]

As shown in FIG. 5, the cargo 5 is placed on a pallet 4 that is shaped like a grid with a plurality of vertical bars 1 and horizontal bars 2, and has a gap 3 between a pair of upper and lower horizontal bars 2 provided at the bottom. When the fork claw of the cargo handling machine is inserted into the gap 3 and the cargo 5 is lifted together with the pallet 4 for cargo handling, if the cargo 5 has a circular cross section as shown in FIGS. A portion may protrude into the gap 3 and the fork claw may not be inserted.

[The problem that the idea aims to solve]

Therefore, it is conceivable to grip the sides of the pallet 4 with a pair of clamp arms as described above, but since the vertical rod 1 of the pallet 4 is gripped by the clamp arms, it is easy to slip and the pallet 4 cannot be grasped and lifted securely. .

The present invention was devised in view of the above circumstances, and its purpose is to provide a cargo handling machine that can securely grip and lift pallets with a pair of clamp arms, as well as facilitate the operation of gripping pallets with the clamp arms. The purpose is to provide a clamping device.

[Means and actions to solve the problem]

A pair of clamp arms 13 and 14 grip a pallet 4 having a gap 3 on the side surface, and claw bodies 15 and 16 to be inserted into the gap 3 of the pallet 4 and the gap 3.
The pallet 4 can be lifted up without slipping by inserting the claws 15 and 16 into the gap 8. is detected, and the claw bodies 15, 16 of the clamp arms 13, 14 can be reliably inserted into the gap 3.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4.

10 is a mast of the cargo handling machine, 11 is a roller support, and roller 1 of the roller support 11
2' is inserted into the mast 10. A swing board 12 is provided on the roller support 11 so as to be swingable around a rotation center P, and left and right clamp arms 13 and 14 are provided on the swing board 12 so as to be movable in the left-right direction.

The left and right clamp arms 13, 14 are provided with front and rear claw bodies 15, 16 on their opposing inner surfaces.
Further, sensors 17 and 18 are provided at the front and rear of the opposing inner surfaces of the left and right clamp arms 13 and 14, respectively.

The front and rear sensors 17 and 18 consist of a transmitter 19 and a receiver 20.

Next, the operation will be explained.

When the left and right clamp arms 13 and 14 grip the pallet 4 from the left and right sides, the light or radio waves emitted from the transmitter 19 are received by the receiver 20 through the gap 3 of the pallet 4 and sent to the sensor 17,
18 is turned on and detects that there is a gap 3.

That is, the claw bodies 1 of the clamp arms 13 and 14
This means that it is detected that there is a gap 3 into which 5 and 16 are inserted.

Note that reflective sensors may be used as the sensors 17 and 18.

[Effect of idea]

The claw body 15 of the pair of clamp arms 13, 14,
By inserting the pallet 4 into the gap 3 of the pallet 4, the pallet 4 can be gripped securely and the pallet 4 can be lifted without slipping.
8 to detect the gap 3 of the pallet 4, and the claws 15, 16 of the clamp arms 13, 14 can be inserted into the gap 3 reliably. It can be done easily.

[Brief explanation of the drawing]

Fig. 1 is a plan view of one embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a perspective view with the same part omitted, Fig. 4 is an explanatory view of the same operation, Fig. 5 is a front view of the pallet, FIG. 6 is a diagram illustrating the configuration of the pallet with some parts omitted. 3 is a gap, 4 is a pallet, 13 and 14 are clamp arms, 15 and 16 are claw bodies, and 17 and 18 are sensors.

Claims (1)

[Claims for Utility Model Registration] In a clamping device for a cargo handling machine in which a pallet 4 having a gap 3 on the side surface is held by a pair of clamp arms 14, 13, the pallet 4 is held on opposing surfaces of the pair of clamp arms 14, 13. The claw body 1 inserted into the gap 3 of
5 and 16 are provided facing each other, and this claw body 13,
14. A clamping device for a cargo handling machine, characterized in that sensors 17 and 18 for detecting the gap 3 of the pallet 4 are provided adjacent to the pallet 14.