JP3666628B2 - Work transfer reversing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a workpiece transfer / reversing apparatus, and more particularly to a transfer / reversing apparatus for reversing and transferring a heavy object such as an automobile transmission.
[0002]
[Prior art]
As a device for reversing and transferring a heavy object such as an automobile transmission from an upright position to an inverted position, the device disclosed in Japanese Utility Model Publication No. 8-5148 is supported by a hoist or the like. If the arm is formed in an arc shape centering on the center of gravity of the workpiece as a heavy object, and the lower end of the arm is supported and supported by the lower end of the workpiece in the normal rotation state, the arm is axially The workpiece is rotated around the center of gravity by being displaced to the right.
[0003]
This device has the advantage that it can be reversed with a slight force around the center of gravity of the workpiece, but on the other hand, the workpiece must be attached using a plurality of bolts at the other end of the arm. In addition to requiring a lot of time to attach and detach, there is still room for further improvement in that it places an unnecessary load on the upper and lower bolts and workpieces during reversal.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of such problems, and an object of the present invention is to provide an improved work that allows easy attachment / detachment of the work and does not place an unnecessary load on the attachment part during reversal. It is in providing the transfer reversing apparatus.
[0005]
[Means for Solving the Problems]
That is, since the present invention to achieve the foregoing object, movable bolt holes at the lower end, also Oite to transfer reversal device of a work and a hook portion on the side surface, is formed in an arc shape in the axial direction arm and, provided in the arm, and the rod member for restricting the movement of the workpiece is inserted into the bolt hole of the word click on the lower end, provided in the arm, the engagement has been the work the hook portion of the workpiece A horizontal hook plate member having an upward engaging projection that supports the arm, and the arm is displaced in the axial direction so that the work held by the arm is reversed around its center of gravity. .
[0006]
[Action]
With this configuration, the rod member suspended from the lower end of the arc-shaped arm is inserted into the bolt hole at the lower end of the workpiece to restrict the movement of the workpiece, and the upward engagement protrusion of the hook plate member provided sideways is provided. By engaging with the hook portion on the side surface of the workpiece, the workpiece can be easily reversed without applying an excessive force to the rod member or the hook plate member.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Therefore, examples of the present invention will be described below.
1 to 3 all show an embodiment of the present invention.
[0008]
In the figure, reference numeral 1 denotes an arm for suspending and reversing a workpiece W to be reversed and transferred, for example, a heavy object such as a transmission of an automobile, and this arm 1 has approximately four centers around the center of gravity of the workpiece W. A half arc is formed, and a lever 2 for rotating operation is fixed to the upper end in a direction perpendicular to the upper end.
[0009]
Reference numeral 4 in the figure denotes a suspension member attached to the lower end of the arm 1 to engage with and hold the workpiece W. The suspension member 4 has both ends of the bracket 5 fixed to the lower end of the arm 1. Are formed by two rod-like rods 6 and 6 fixed in a direction perpendicular to the upper surface of the bracket 5 and a hook plate 7 fixed laterally on the upper surface of the bracket 5 toward the workpiece W. engaging projection 8 provided with Shi returned to the arm 1 side is projected, bolt holes a two places provided on the lower end of the workpiece W, is inserted the end of the rod 6, 6 a, the side surface of the workpiece W The lower end of the arm 1 and the workpiece W are coupled to each other by engaging the engaging protrusion 8 with the hook portion b provided on the arm.
[0010]
On the other hand, reference numeral 12 in the figure is a bracket rotatably attached to a hoist hanging bracket 11 (not shown), and this bracket has a U-shape having a width that allows the arm 1 to be loosely inserted. A roller 14 that supports the arm 1 with a space that allows the arm 1 to be inserted between the inner top surface 13 and the inner top surface 13 is fixed to the inner top surface 13. 14 is configured so that the arm 1 inserted between the arm 14 and the arm 14 can move in the axial direction.
[0011]
In order to engage the workpiece W with the transfer / reversing device configured as described above, first, the hoist suspension fitting 11 is pulled down with respect to the workpiece W in the upright position, and the arm 1 is moved through the bracket 5. The tip of the rod 6 fixed to the lower end is inserted into the bolt hole a at the lower end of the workpiece W.
[0012]
Next, as shown by the solid line in FIG. 2, the arm 1 is slightly lowered and displaced in the direction away from the work W, and then as shown by the two-dot chain line, the arm 1 is returned to the original position and pulled up. The engagement protrusion 8 at the tip of the hook plate 7 is naturally fitted and coupled to the hole c of the suspension hook b on the side surface of the workpiece W.
[0013]
If the arm 1 is lifted in this state, the workpiece W is lifted while applying a tensile force in the longitudinal direction to the hook plate 7 while showing a tendency to rotate clockwise around the tip of the rod 6.
[0014]
Therefore, as shown in FIG. 3, if the arm 1 is turned to the right or left as it is, the workpiece W is supported by the rod 6 and the hook plate 7, and the center of gravity O is the center. Easy flipping operation.
[0015]
FIG. 4 shows an embodiment of a hook plate configured to be applicable to different workpieces W such as cylinder blocks.
[0016]
In the figure, reference numeral 25 denotes a bracket fixed to the lower end of an arm (not shown), and two upper and lower hook plates 27 and 28 are pivotally supported on the upper and lower surfaces of the bracket 25 via a common bolt 26. In addition, the hook plates 27 and 28 are operated to rotate, and the engaging projections 27a and 28a projecting from the top surfaces of the tips are engaged with hook holes of various workpieces W having different shapes. ing.
[0017]
【The invention's effect】
According to the present invention as described above, in a state of inserting the tip of the rod member to the bolt holes Wa chromatography click, arm by pulling while displaced in a direction away from the workpiece, the workpiece easily at the lower end of the arm At the same time, the arm is displaced in either of its axial directions, thereby supporting the load of the workpiece to be rotated around the tip of the rod member by the steel in the longitudinal direction of the hook plate. Even if the workpiece is heavy, it can be easily reversed while stably holding it.
[Brief description of the drawings]
1A and 1B are a side view and a front view of an apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a state where the workpiece is coupled.
FIG. 3 is a diagram showing a reversed state.
4A and 4B are a top view and a side view of a hook plate showing another embodiment of the present invention.
[Explanation of symbols]
1 Arm 5, 25 Bracket 6 Rod 7, 27, 28 Hook plate 8 27a, 28a Engagement protrusion

Claims (2)

The bolt holes in the bottom and in the transfer reversal device of a work and a hook portion on the side surface,
An arm movable in the axial direction is formed in a circular arc shape, provided in the arm, and the rod member for restricting the movement of the work is inserted through the bolt hole of the workpiece to the lower end, provided in the arm , anda transverse hook plate member having an upward engaging projections are engaged with the full-click portions of the work supporting the work,
A workpiece transfer reversing device for displacing the workpiece held by the arm by displacing the arm in the axial direction about the center of gravity .   2. The workpiece transfer and reversing device according to claim 1, wherein two hook plate members, which are long and short, are pivotally supported at the lower end of the arm so as to be displaceable.

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