JP2897982B2 - Reaction force receiving device for jacks for moving heavy objects - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a reaction force receiving device for a jack for moving a heavy object.

[0002]

2. Description of the Related Art The method of moving heavy objects by jacks is as follows.
One end of the jack is connected to a heavy object to be moved, and the other end is connected to a mold steel or the like that takes a reaction force of the movement, and the heavy object is moved while taking a reaction force in the form of a scale using the expansion and contraction of the jack. .

Conventionally, the method of taking the jack reaction force of this type is to use a reaction force receiving bracket A, which is connected to a lot R of a moving jack J at each cycle, by bolts, as shown in FIGS. As shown in FIG. 13 and FIG.
As shown in FIG. 5, it has been common practice to equip a reaction force receiving portion with a tightening device D such as a wedge-type mold steel clamp device, to tighten a flange of the shape steel K to take a reaction force by friction.

However, in the former method, bolts and pins are fitted and removed by aligning the bolt holes and pin holes, and there is a problem that these require time. In addition, the latter method involves a trouble such that a person must check that the moving jack has come to the end of the stroke, operate the tightening device and confirm the tightening.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks of the prior art, and automatically removes and releases the jack reaction force without the need for human labor, thereby enabling a heavy load capable of greatly reducing labor. It is an object of the present invention to provide a reaction force receiving device for a moving jack.

[0006]

According to the present invention, there is provided a reaction force receiving device (1) for a jack for moving a heavy object connected to the other end of a jack connected to a heavy object whose one end is moved.
A reaction force receiving frame (4) detachably mounted on a pair of right and left clamping devices (3) provided with a clamp set pin (2) on a reaction force receiving steel (K) of a required length also serving as a rail for moving heavy objects. ), And a reaction receiving bracket (6) fixed to the reaction receiving frame (4) by a shaft (7). The reaction receiving bracket (6) is provided with the reaction receiving steel (K). ) Is provided with a serrated (5) arc surface which is engaged with the flange surface (F) to release the engagement, and the reaction force receiving bracket (6) has a shaft (8) which is a heavy object. Is connected to the rod (R) of the moving jack (J).

[0007]

[0008] By simply operating the moving jack, the jack reaction force can be removed and released, and the heavy object can be moved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, K is a reaction force receiving steel (H-shaped steel) having a required length, and also serves as a rail for moving heavy objects.

A jack reaction force receiving device generally designated by 1 is:
It has a reaction force receiving frame 4 detachably attached to the mold steel K by a pair of right and left clamping devices 3 and 3 provided with a clamp set pin 2. Prepared, serration processing 5
The formed arc surface is meshed with the flange surface F of the reaction force receiving die steel K, and the reaction force receiving member 6 from which the engagement is released is fixed by the shaft 7.

The reaction force receiving bracket 6 of the reaction force receiving device 1 is connected to the rod R of the jack J for moving heavy objects by the shaft 8.

When thrust is applied to the moving jack J, FIG.
As shown in the figure, the reaction force receiving bracket 6 rotates in the direction of the arrow,
The serrated surface 5 of the reaction receiving metal fitting 6 automatically meshes with the flange surface F of the reaction receiving steel K to take a reaction force and move a heavy object.

When the moving jack J is contracted, FIG.
As shown in (1), the engagement of the serrated surface 5 of the reaction force receiving metal 6 with the flange surface F of the reaction force receiving steel K is automatically released, and the reaction force receiving device 1 is pulled in the direction of the arrow.

FIGS. 6 to 10 show an operation procedure of moving a heavy object with the jack by the reaction force receiving device 1 described above.

FIGS. 6 to 8 show a state in which the reaction force is received by the reaction force receiving device 1 and the jack J is extended to move the heavy object M in the direction of the arrow. N is a roller interposed between the flange surface of the reaction force receiving steel K and the heavy object M.

FIGS. 9 and 10 show the reaction force receiving device 1.
Is released to release the reaction force and pull the reaction force receiving device 1 in the direction of the arrow.

The operations shown in FIGS. 6 to 10 are repeated, and the heavy object is moved by the scale insect method.

[0018]

According to the present invention, when a thrust is applied to the moving jack without using a special device such as a fastening jack, the fastening force is automatically applied to the flange of the mold steel by the reaction force receiving bracket. When the operation of contracting the moving jack is performed, the reaction force receiving bracket is automatically loosened to release the reaction force, and the reaction force receiving device can be drawn. That is, a heavy object can be moved only by operating the moving jack, and the operation is greatly reduced.

[Brief description of the drawings]

FIG. 1 is a side view in which a reaction force receiving device according to an embodiment of the present invention is connected to a jack for moving a heavy object.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a front view showing a main part in cross section.

FIG. 4 is a side view showing a state in which the reaction force receiving device is taking a jack reaction force.

FIG. 5 is a side view showing a state in which the jack reaction force of the reaction force receiving device is released.

FIG. 6 is a side view showing an initial state in which the reaction force receiving device takes a jack reaction force and moves a heavy object with the movement jack.

FIG. 7 is a side view showing an intermediate state.

FIG. 8 is a side view showing a stroke end state.

FIG. 9 is a side view showing an initial state in which the jack reaction force of the reaction force receiving device is released and the reaction force receiving device is drawn.

FIG. 10 is a side view showing a state where the reaction force receiving device has been drawn.

FIG. 11 is a side view showing a conventional reaction force receiving means.

FIG. 12 is a view taken in the direction of the arrow A in FIG. 11;

FIG. 13 is a side view showing another example of the conventional reaction force receiving means.

FIG. 14 is a view taken in the direction of arrow B in FIG. 13;

FIG. 15 is a side view showing still another example of the conventional reaction force receiving means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Reaction force receiving device 2 ... Clamp set pin 3 ... Clamping device 4 ... Reaction force receiving frame 5 ... Serration processing 6 ... Reaction force receiving bracket 7 ... Shaft 8.・ ・ Shaft K ・ ・ ・ Reaction force receiving type steel J ・ ・ ・ Jack R ・ ・ ・ Todd M ・ ・ ・ Heavy load N ・ ・ ・ Roller

Claims (1)

(57) [Claims] 1. A reaction force receiving device (1) for a jack for moving a heavy object connected to the other end of a jack connected to a heavy object whose one end is moved, the reaction force having a required length serving also as a rail for moving a heavy object. A reaction force receiving frame (4) detachably mounted by a pair of right and left clamping devices (3) provided with a clamp set pin (2) on a receiving die (K). A reaction force receiving member (6) fixed to a shaft (7), the reaction force receiving member (6) meshes with the flange surface (F) of the reaction force receiving steel (K), and the meshing is released. Serration processing (5)
And the reaction force receiving bracket (6) is a shaft (8) and a rod (R) of a jack (J) for moving a heavy object.
A reaction force receiving device for a jack for moving a heavy object, wherein the device is connected to the jack.