JPS6040382Y2 - Line shaft drive conveyor device - Google Patents

Description

[Detailed Description of the Invention] The present invention is a line shaft drive conveyance device, that is, a driven roller that comes into contact with a driving line shaft supported along the conveyance carriage movement line is pivotally supported on the conveyance carriage, and at the place where the carriage stops, A movable cam rail for changing the driven roller from a driven state oblique to the axis of the drive line shaft to an idle state parallel to the axis, and a switching means for switching the cam rail between an active position and a non-active position. The present invention relates to a conveyance device, which is improved so that a conveyance vehicle can be safely and reliably stopped at a predetermined position after the propulsion force transmission from the line shaft is cut off at the vehicle stop point.

An embodiment of the present invention will be described below with reference to the attached illustrative drawings.

In FIG. 1, reference numeral 1 denotes a driving line shaft supported along the moving route of the transport vehicle 2;
is provided with a driven roller 3 that comes into contact with this driving line shaft 1.

Reference numeral 4 denotes a movable frame that is rotatably supported on the transport vehicle 2 by a vertical shaft 5, and the driven roller 3 is pivotally supported by the movable frame 4 about a horizontal shaft.

6 is a cam driven roller pivotally supported by the movable frame 4.

Although not shown, the movable frame 4 is attached by a spring so that the driven roller 3 is in a driven state inclined at an angle of 45 degrees with respect to the driving line shaft 1, as shown by the solid line in FIG. Forced.

At each stop location of the transport vehicle 2, a cam rail 8 supported by a vertical shaft 7, a switching means 9 for the cam rail 8,
A carrier stopper 10 is provided.

The switching means 9 includes a lever 13 supported by a vertical shaft 12 on a base 11, and a vertical shaft 14 at one end of this lever 13.
It consists of an L-shaped bar 15 that is pivotally supported by the L-shaped lever 15, and a cylinder unit 16 that is interposed between one end of the L-shaped bar 15 and the base 11. - the free end of the rod 6 is connected.

The stopper 10 is attached to a base 11 as shown in FIG.
A stopper main body 19 is pivotally supported by a horizontal shaft 18 to be vertically swingable on a bracket 17 protruding from the bottom, and a horizontal It consists of a trouble link 22 supported by shafts 20 and 21, and a stopper 23 for regulating the range of motion of this trouble link 22.

When the trouble link 22 comes into contact with the stopper 23, the stopper main body 19 is in a protruding position where it can come into contact with the abutment member 24 provided on the transport vehicle 2 and stop the transport vehicle 2, The folding part pivot shaft 25 is slightly closer to the stopper 23 than the neutral line connecting the shafts 20 and 21 at both ends.
When the contact member 24 collides with the stopper main body 19 on the side, the downward rotational force generated in the stopper main body 19 is stopped by the stopper 23 .

Reference numeral 26 denotes a length-adjustable rod as an operating means for pushing and pulling the center-folded pivot shaft 25 of the trouble link 22. This rod 26 and the other end of the lever 13 are connected by a ball joint 27. When the cam rail 8 is in the operating position as shown in Fig. 1, the trouble link 2
2 is urged into an upright position in contact with the stopper 23,
The stopper body 19 is configured to take a protruding position.

Next, to explain the operation, when the cam rail 8 is in the operating position as shown in FIG.
1 and is propelled in the direction of arrow 28, the cam driven roller 6 moves against the cam rail 8.
1, the movable frame 4 is rotated against the force, and the driven roller 3 is switched to an idle state as shown by the imaginary line in FIG. 1, so that the carrier 2 becomes free.

At this time, the contact member 24 of the carrier 2 comes into contact with the stopper main body 19 in the protruding position as shown in FIG. 2, and the carrier 2 is stopped at a predetermined position without overshooting the stop position due to inertia. .

When starting the stopped transport vehicle 2, as shown in FIG. 3, the L-shaped bar 15 is pulled by the cylinder unit 16, so that the cam rail 8 rotates outward about the shaft 7. Since the cam is separated from the driven roller 6, the driven roller 3 is returned to the driven state by the force, and at the same time, the lever 13 rotates around the shaft 12, and the center-folded portion of the trouble link 22 is pivoted via the rod 26. axis 25
is pulled as shown in FIG. 4, the trouble link 22 is bent in half, and the stopper main body 19 is
Since it is rotated downward and retracted around 8, the carrier 2 receives the propulsive force from the drive line shaft 1 again and moves in the direction of the arrow 28.

The present invention can be implemented and used as described above, and according to the present invention, a driven roller for obtaining propulsive force is linked to a cam rail for switching between a driven state and an idle state, The stopper used to stop the transport vehicle at a predetermined position can be moved in and out, so when the driven roller is switched to an idle state, the stopper is automatically and timely protruded, ensuring that the transport vehicle is at a predetermined position. It can be stopped at any time.

In addition, since the protruding stopper is supported by the trouble link, the impact when the transport vehicle collides with this stopper is not transmitted to the cam rail side, and the cam rail is reliably held in the operating position and the desired result is achieved. This allows it to function effectively.

[Brief explanation of the drawing]

FIG. 1 is a plan view, FIG. 2 is a side view of the main parts, FIG. 3 is a plan view when the cam rail is switched to the non-operating position, and FIG. 4 is a side view showing the stopper at that time. 1... Drive line shaft, 2...
Transport truck, 3... Driven roller, 6...
・Cam driven roller 8...Cam rail, 9・
... Switching means, 10 ... Stopper, 13 ... Lever, 15 ... L-shaped bar 16 ... Cylinder unit, 19 ...・
... Stopper main body, 22 ... Trouble link, 25 ... Half-folded part pivot shaft, 26 ......
rod.

Claims (1)

[Scope of utility model registration request] A driven roller that comes into contact with a driving line shaft supported along the transportation line of the transportation vehicle is pivotally supported on the transportation vehicle, and the driven roller is moved from a driven state diagonal to the axis of the driving line shaft at a location where the transportation vehicle stops. In a conveying device provided with a movable cam rail for changing to a parallel idle state and a switching means for switching the cam rail between an active position and a non-active position, the driven roller is switched to an idle state by the cam rail in an active position. A stopper for stopping the forward movement of the conveyor cart is provided so as to be movable in and out, and the stopper is supported in the extended state in a stable position slightly bent to one side from a straight state, and the stopper is bent halfway to the opposite side. A trouble link is provided for retracting and retracting the stopper in the posture, and an operation means for pushing and pulling the folded part of the trouble link and the cam rail switching means are connected to each other when the cam rail is switched to a non-operating position. A line shaft drive conveyor device in which the links are interlocked and connected to each other so that the links can be switched to a bent or half-folded position.