JPH0439170Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a lid opening/closing device for a container for transporting goods having a hinged lid.

Conventional technology As shown in Fig. 4, in the past, the lid 3 of the container 2 was suctioned and lifted by a vacuum cup 1 that could move vertically and horizontally, and moved laterally to take in and take out the contents of the container. This method requires a large space, and when the vacuum cup is opened, it generates dust due to exhaust gas, making it unsuitable for work in a clean room.

Problems to be solved by the invention The purpose of this invention is to provide a container lid opening/closing device that saves opening/closing space by hingedly attaching the container lid to the case, and solves the problem of dust generation by not using a vacuum. shall be.

Means for Solving the Problems This proposal includes a device for regulating the longitudinal position of a container case in which a lid that opens upward is hinged on one side in the direction of the hinge axis and for preventing floating, and a device that is perpendicular to the longitudinal position of the container case. a positioning device for correcting the left and right position of the container case; and an arm whose base end is fixed to a rotating shaft supported by a spline bearing and whose axis coincides with the hinge axis of the positioned container case and which is movable back and forth in the direction of the axis. a chuck that is fixed to the tip of the arm and protrudes from the lid in the direction of the hinge axis; a chuck that engages and disengages by the back and forth movement of the arm; a drive device for moving the arm back and forth that moves the rotating shaft back and forth; and a drive device that rotates the spline bearing. The gist of the present invention is the configuration of a container lid opening/closing device having an arm rotation drive device.

Operation The container reaches the lid opening/closing position when the arm is retracted so that the chuck is out of the path of the container projection and is restrained in position by the positioning device and the anti-floating device. At this time, the arm is stopped at a rotational position where the chuck faces the protrusion, and when the arm is moved forward by the arm forward/backward movement drive device and the chuck engages with the protrusion, the arm rotation drive device starts to move the arm. Rotate and open the lid. The lid opens more than 90 degrees and stops, and items are taken in and out of the case in this state. After loading and unloading is completed, the lid is closed by the reverse operation to the above, and the container becomes movable.

Embodiment In FIGS. 1 to 3, the container 4 is carried into the lid opening/closing position in a state in which the container 4 is positioned in the left-right direction in FIG. 2 by the guide piece 6 that supports the lower surface of the case 5. Then, the clamp 7 stands up and clamps the case 5 from the front and rear to regulate the front and back position and prevent the case 5 from floating up. Container 4 lid 8
is pivotally connected to a hinge fitting 9 fixed to one side in the longitudinal direction of the case 5 by a pin 9a so as to be openable and closable, and a receiver 10 fixed to the case 5 and a lid 8 are fixed to the opposite side. The support member 11 is in contact with the upper surface of the case 5 and covers the upper surface of the case 5.

On one front side of the case 5, the fixed frame 1
A U-shaped support fitting 13 is fixed on the U-shaped support fitting 2, and a spline bearing 14 attached to the U-shaped support fitting 13 supports the rotating shaft 15 at a position where the axis coincides with the pin 9a in the positioning state. The spline bearing 14 consists of a metal fitting 18 that is spline-coupled to the rotating shaft 15 and is fixed inside an outer cylinder 17 supported by a ball bearing 16. An arm 19 is fixed to the tip of the rotating shaft 15 and attached to the supporting metal fitting 13. An air cylinder 21, which is a drive device for moving the arm back and forth, is attached to the mounting frame 20, and the rod and the rotating shaft 15 are concentrically connected by a cylinder hook 22.

A lever 23 is fixed to the outer cylinder 17 in the U-shaped space of the support fitting 13, and the base end of an air cylinder 25, which is an arm rotation drive device, is attached to a trunnion fitting 24 fixed to the frame 12 on the other front side of the case 5. The rod is connected to the lever 23, and the arm 19 is rotated by the air cylinder 25.

When the air cylinder 25 is extended (second
), the chuck 26 fixed to the tip of the arm 19
is opposed to a protrusion 27 fixed to the lid 8, and when the air cylinder 21 is extended in this state, the chuck 2
The tip hole 28 of No. 6 fits into the protrusion 27. Then, when the air cylinder 25 is shortened, the arm 19 rotates and the lid 8 is opened to the position 8'. In this case, the case 5 is prevented from floating by the clamp 7.

To close the lid 8, the operation can be performed in the reverse order.

Effects of the invention This invention has the above-mentioned configuration, and since the lid is opened and closed at a lateral position with respect to the lid opening/closing direction of the container, it is easy to take goods in and out of the container, and the entire lid opening/closing device can be made into a compact unit. It is mechanically simpler, cheaper, and easier to maintain than the conventional vacuum type, and there is no risk of dust generation, so it is suitable for container equipment for goods that must be kept in a clean state. It has the following effects.

[Brief explanation of the drawing]

Fig. 1 is an elevational view showing a main part of an embodiment of the present invention in cross section, Fig. 2 is a side view of the same, Fig. 3 is a partial side view of the container, and Fig. 4 is an elevational view of a conventional example. be. 4... Container, 5... Case, 6... Positioning device, 7... Positioning device and floating prevention device,
8...Lid, 14...Spline bearing, 15...Rotation shaft, 19...Arm, 21...Arm back and forth movement drive device, 25...Arm rotation drive device, 26
...chuck, 27...protrusion.

Claims (1)

[Scope of utility model registration request] a device for regulating the front-rear position of a container case in which a lid that opens upward is hinged on one side in the direction of the hinge axis and preventing floating; a positioning device for regulating the left-right position of the container case perpendicular to the front-rear position; An arm whose base end is fixed to a rotating shaft supported by a spline bearing whose axis coincides with the hinge axis of the container case and which is movable back and forth in the direction of the axis, and a hinge shaft which is fixed to the tip of the arm and attached to the lid. A lid for a container having a protrusion protruding in a direction and a chuck that engages and disengages by back and forth movement of an arm, an arm back and forth movement drive device that moves the rotating shaft back and forth, and an arm rotation drive device that rotates the spline bearing. Switchgear.