JPH0471839B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a jack for moving a heavy object or the like in a continuous manner vertically, longitudinally or horizontally.

[Prior Art] Conventionally, a device having the structure shown in FIGS. 4 and 5 has been used as a jack for moving a member such as a heavy object in the vertical, longitudinal, or horizontal direction.

In other words, the device shown in FIG. 4a has the first
and the cylinders 4, 5 of the second jacks 2, 3 are fixed, and the first and second jacks 2, 3 are fixed.
The rams 6 and 7 are connected via a connecting beam part 8, and a chuck part 11 is provided in the center of the continuous beam part 8 to connect to a connecting member 10 connected to a heavy object 9. The device in b is reaction force base 1
A cylinder 13 of a so-called center hole jack 12 is fixed thereto, and a chuck portion 11 is provided on a ram 14 of the center hole jack 12 to a connecting member 10 connected to a heavy object 9.

Thus, the jacking device shown in FIG. The heavy object 9 is moved by the amount of extension of the rams 6 and 7 via the member 11, and when the rams 6 and 7 are returned for the purpose of extending the rams 6 and 7 again, the heavy object 9 is moved once by the amount of extension of the rams 6 and 7. After the rams 6 and 7 are supported in the position moved by the extension, the rams 6 and 7 are returned, and the first and second jacks 2 and 3 are operated in the same manner, and the rams 6 and 7 are returned after the extension. The required moving work of the heavy object 9 is carried out while the heavy object 9 is being moved.

In addition, in the case of the jacking device shown in FIG. While returning the ram 14 in the supported state, the heavy object 9 is
The vehicle will carry out the required amount of moving work.

The jacking device shown in Figures 5a and b is as shown in Figure 4a.
The illustrated jacking device is constructed by providing two stages in series via a first reaction force base 1, a second reaction force base 15, or alternatively a jacking frame 16. The ram 6 of one jacking device, By returning the rams 6 and 7 of the other jacking device during the extension operation of step 7, the heavy object 9 is
It is designed to enable the movement of people.

The jacking device shown in Figures 5c and d is as shown in Figure 4b.
In the configuration of the center hole jack 12 constituting the jack device, a locking member 18 having a keyway 17 is provided on the ram 14, and a guide having a guide protrusion 19 that engages the keyway 17 of the locking member 18 is provided. By providing the member 20, the heavy object 9 can be moved while preventing the ram 14 of the center hole jack 12 from rotating when the ram 14 is activated.

In FIG. 5, the same components as those in FIG. 4 are given the same numbers, and the explanation thereof will be omitted.

[Problems to be Solved by the Invention] However, according to the jacking device shown in FIG. This has the disadvantage that it causes vibrations caused by repeated operations, which adversely affects the heavy object 9 itself.

In particular, the lateral movement of the heavy object 9 is often carried out using support means such as sliding bearings and rolling bearings. Due to the selection of the means used, it has the disadvantage of unnecessary loading at the start of movement.

Therefore, since the work of moving the heavy object 9 by the jacking device shown in FIG. It has the disadvantage that it takes almost as much time as decompression, has a lot of waiting time, and is inefficient.

Further, according to the jacking device shown in FIGS. 5a and 5b, the intermittent moving work in the jacking device shown in FIG. It is necessary to separately provide a reaction base 15 or a jack mount 15 for installation, and special equipment is required for this purpose, which increases the complexity of the equipment, expands the equipment space, reduces economic efficiency, and furthermore, causes eccentricity. It has disadvantages such as associated risks.

Further, in order to prevent the rotation of the center hole jack 12 in the jacking device shown in FIG. 4b during operation of the ram 14, the jacking device is provided with a locking member 18 and a guide member 20 shown in FIGS. has been developed and used, but disadvantages are unavoidable, such as higher costs due to increased production costs of such a configuration, and a decrease in economic efficiency and performance such as an increase in sliding frictional resistance between the locking member 18 and the guide member 20 during operation. It has the following.

Therefore, the present invention has been developed in view of the various shortcomings of the conventional jacking devices described above, and is capable of rapidly and accurately carrying out continuous movement work of transferred members such as heavy objects without rotating the ram or cylinder. The object of the present invention is to provide a jack for continuous relocation that is highly economical and high in performance.

[Means for Solving the Problems] The continuous relocation jack of the present invention is provided with a plurality of fixing through holes 31 and a through hole 32 for the relocated member or the connecting member connected thereto in the central part. The provided jack base 30 and tension side oil pipe joint 4
7 and 48 to the tension side hydraulic circuit,
A pair of jacks arranged opposite to the jack base 30 by connecting the return side oil pipe joints 51, 52 to the return side circuit and fixing the cylinders 37, 38 to the jack base 30 via the mounting fittings 39, 40. The first relocation jack part 33 consisting of 35 and 36 and the tension side oil pipe joints 49 and 50 are connected to the tension side hydraulic circuit, and the return side oil pipe joint 5
3,54 are connected to the return circuit, and the rams 43,4
4 is fixed to the jack base 30 via the mounting fittings 45, 46, so that the jacks 35, 36 of the first relocation jack part 33 face each other in a direction perpendicular to the arrangement direction of the jacks 35, 36. A second relocation jack portion 34 consisting of a pair of provided jacks 41 and 42, and fitting recesses 58a and 59a provided in connecting portions 58 and 59 on both left and right sides.
The jack 3 of the first relocation jack part 33
Connecting ends 56a, 57 of rams 56, 57 of 5, 36
a, and is fixed and installed with a bolt 60, and is formed by providing a through hole 61 in the center of the member to be relocated or a connecting member connected thereto, which coincides with the axis of the through hole 32 of the jack base 30. A first connecting the rams 56, 57 of the jacks 35, 36 of the first relocation jack part 33
Sliding holes 67, 6 of the rams 43, 44 of the jacks 41, 42 of the second relocation jack part 34, which are opened in the connecting beam part 55 and the connecting parts 65, 66 on both left and right sides.
The fitting recesses 6 are inserted into the respective rams 43 and 44 via the fitting recesses 6 provided in the connecting portions 65 and 66.
5a, 66a are the protruding input ends 6 of the rams 43, 44 of the cylinders 63, 64 of the jacks 41, 42.
3a, 64a and fixed with bolts 69, and the jack base 30 is installed in the center part.
through hole 32 and through hole 6 of the first connecting beam portion 55
A second relocation jack part 34 that connects the cylinders 63 and 64 of the jacks 41 and 42 of the second relocation jack part 34, which is formed by providing a through hole 70 in a member to be relocated or a connecting member connected thereto, which coincides with the axis of the second relocation jack part 34. A chuck case 74 in which a support ring 73 having a connecting beam part 62 and a through hole 72 communicating with the through hole 72 communicating with the through hole 61 of the first connecting beam part 55 is fitted inside the opening end 74a is attached to the first connecting beam by a mounting bracket 75. Part 55
The chuck case 74 is attached to the center thereof, and inside the tapered inner diameter part 76 of the chuck case 74, three channel split claws 77 with chuck grooves 77a carved on the inner peripheral surface are slidably installed. A spring 7 is inserted between the chuck splitting claw 77 and the cap 78.
The cap 78 is screwed onto the chuck case 74 while restricting the sliding of the split claws 77 for each chuck by interposing the split claws 77 for each chuck. A release member 81 for pressing the claw 77 against the elasticity of the spring 79 is slidably provided inside, and a release handle 84 is rotatably mounted on the outside of the cylindrical portion 80 of the chuck case 74 via a pivot shaft 82. At the same time, a slide pin 85 is slidably inserted into a slide groove 83 disposed opposite to the cylindrical portion 80, and the release handle 84 is connected to the edge of the slide pin 85 via the slide pin 85. The release member 81 is connected to provide a release portion of the chuck split claw 77, and the tapered inner diameter portion 76 of the chuck case 74 and the tapered outer diameter portion of the chuck split claw 77 are formed to correspond to each other. At the same time, an annular groove 86 is provided at the outer peripheral end of each chuck splitting claw 77 on the side of the cap 78 of the chuck case 74, and an elastic band-shaped plate 87 is wound around each of the annular grooves 86 to connect each chuck splitting claw 77.
The first connecting beam portion 5 has a locking ring 88 for the spring 79 interposed in each chuck splitting claw 77.
A chuck case 91 is attached to the central part of the second connecting beam part 62 via a mounting bracket 90, and a tapered inner diameter part 92 Three chuck splitting claws 93 are slidably installed inside the chuck case 91, and a cap 95 is screwed onto the opening of the chuck case 91 while a spring 94 is loaded therein. A chuck groove 93a is formed in the member to be transferred or a connecting member connected thereto, and an annular groove 96 is provided in the outer periphery of the opening of each chuck splitting claw 93 on the side of the cap 95 of the chuck case 91. An elastic band plate 97 is wound around the groove 96 to connect each chuck splitting claw 93, and each chuck splitting claw 93 is connected to a chuck portion 89 in which a locking ring 98 for the spring 94 is interposed. It is what it is.

[Function] The continuous relocation jack of the present invention can conflict with the plurality of jacks in the first and second jack parts through necessary control such as sequence control or position control between the first and second jack parts. By performing the operation, the work of relocating the member to be relocated is continuously performed through the first and second connecting beam parts connecting the plurality of jacks and the chuck parts provided thereon for connecting each member to be relocated. It is something.

In particular, the configuration improves the performance and speed of continuous operation by arranging the jacks of the first and second jack parts in opposite directions, and supports the chuck parts of the first and second connecting beam parts. It is possible to simplify the process and downsize the entire configuration.

In addition, the chuck portions provided on the first and second connecting beam portions can improve the accuracy of continuous relocation operations at the first and second jack portions, and the manual release means provided on the same portions can improve the accuracy of continuous relocation operations at the first and second jack portions. It is possible to simplify and speed up the relocation operation of the relocation member.

[Example] Hereinafter, an example of the jack for continuous relocation of heavy objects, etc. of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a plan view showing an embodiment of the jack for continuous relocation of heavy objects, etc. of the present invention, Fig. 2 is a partially cutaway side view from the first jack part side in Fig. 1, and Fig. 3. 2 is a partially cut away side view from the second jack part side in FIG. 1, with some parts omitted; FIG.

In the figure, 30 is a jack base, and this jack base 30 is provided with a plurality of through holes 31 for fixing, and a member to be relocated or
A through hole 32 for a connecting member connected to this is provided.

33 is a first relocation jack part provided on the jack base 30, and 34 is a second relocation jack part provided on the same jack base 30.

Thus, the first relocation jack section 33 moves the pair of hydraulic jacks 35 and 36 to its cylinder 3.
7 and 38 are fixed oppositely to the jack base 30 via mounting fittings 39 and 40, and the second relocation jack part 34 is connected to a pair of hydraulic jacks 41 and 42.
The rams 43 and 44 are fixed to the jack base 30 via mounting fittings 45 and 46 so as to be perpendicular to the direction in which the axial pressure jacks 35 and 36 of the first relocation jack section 33 are disposed and facing each other.

In addition, the first and second relocation jack parts 33,
The tension-side oil pipe joints 47, 48, 49, 50 of each of the 34 hydraulic jacks 35, 36, 41, 42 are connected to the tension-side hydraulic circuit of a hydraulic control section (not shown), and the return-side oil pipe joints 51, 52, 53, 54
is connected to the return circuit.

Reference numeral 55 denotes a first connecting beam portion that connects the rams 56, 57 of the hydraulic jacks 35, 36 of the first relocation jack portion 33, and the fitting recesses 58a, 59a provided in the left and right connecting portions 58, 59 are connected to the rams 56, 57 of the hydraulic jacks 35, 36 of the first relocation jack portion 33. 56, 57, and is fixed with a bolt 60. At the center, there is a member to be relocated that is aligned with the axis of the through hole 32 of the jack base 30, or a connecting member connected thereto. Through hole 6
1.

Reference numeral 62 denotes a second continuous beam portion connecting the cylinders 63 and 64 of the hydraulic jacks 41 and 42 of the second relocation jack 34, and connecting portions 65 and 66 on both left and right sides.
The fitting recesses 65 provided in the connecting portions 65, 66 are inserted into the rams 43, 44 through the sliding holes 67, 68 of the rams 43, 44, which are opened in the rams 43, 44, respectively.
a, 66a are the rams 43 of the cylinders 63, 64,
44, and are fixed and attached with bolts 69, and the center portion thereof coincides with the axes of the through hole 32 of the jack base 30 and the through hole 61 of the first connecting beam portion 55. It is formed by providing a through hole 70 in a member to be relocated or a connecting member connected thereto.

Reference numeral 71 denotes a chuck portion of the relocated member provided at the center of the first continuous beam portion 55 or a connecting member connected thereto. A chuck case 74 with a support ring 73 having a hole 72 fitted inside the open end 74a is attached to the first
Attached to the center of the connecting beam portion 55, three chuck split claws 77 having chuck grooves 77a carved on the inner peripheral surface are slidably installed inside the tapered inner diameter portion 76 of the chuck case 74. A spring 79 is interposed between the three chuck splitting claws 77 and the cap 78 to separate each chuck splitting claw 77.
The cap 78 is screwed onto the chuck case 74 while restricting the sliding of the chuck case 74, and each chuck split claw 77 is inserted into the cylindrical portion 80 on the open end 74a side of the chuck case 74 against the elasticity of the spring 79. A releasing member 81 to be pressed is slidably installed inside the cylindrical portion 8 of the chuck case 74.
Release handle 84 via pivot shaft 82 on the outside of 0
A slide pin 8 is rotatably mounted in a slide groove 83 arranged opposite to the cylindrical portion 80.
5, and insert this slide pin 8 so that it can slide freely.
A release portion for the chuck split claw 77 is provided by connecting the release member 81 connected to the edge of the slide pin 85 to the release handle 84 via the release handle 84.

The tapered inner diameter part 76 of the chuck case 74 and the tapered outer diameter part of the chuck splitting claw 77 are formed to correspond to each other, and the outer peripheral end of each chuck splitting claw 77 on the cap 78 side of the chuck case 74 An annular groove 86 is provided, an elastic band plate 87 is wound around each annular groove 86 to connect each chuck split claw 77, and a locking ring 88 of the spring 79 is connected to each chuck split claw 77. It is equipped.

Reference numeral 89 denotes a chuck portion of a member to be relocated or a connecting member connected thereto provided at the center of the second connecting beam portion 62. This chuck portion 89 is attached to the central portion of the second connecting beam portion 62 via a mounting bracket 90. At the same time, the chuck case 91 is attached to the chuck case 91, three chuck split claws 93 are slidably installed inside the tapered inner diameter part 92, and the cap 95 is screwed while a spring 94 is elastically loaded in the opening of the chuck case 91. It is formed by

In addition, a chuck groove 93a for a member to be transferred or a connecting member connected thereto is carved on the inner circumferential surface of each chuck splitting claw 93 of this chuck portion 89, and a chuck groove 93a for the chuck case 91 of each chuck splitting claw 93 is carved. There is an annular groove 9 on the outer periphery of the opening on the 95 side.
6, and an elastic band plate 97 is provided in this annular groove 96.
are wound to connect the respective chuck split claws 93, and furthermore, each chuck split claw 93 is interposed with a ring 98 for locking the spring 94.

In addition, in the figure, 100 indicates each hydraulic jack 35, 3.
6, 41, 42 cylinders 37, 38 and rams 43, 44 mounting brackets 39, 40, 45, 46
Tightening bolt for fixing the to the jack base 30, 1
01 is O on the sliding surface of the ram 43, 44, 56, 57 screwed into the opening of the cylinder 37, 38, 63, 64 of each hydraulic jack 35, 36, 41, 42.
An opening ring with a ring 102 interposed therein; 103 is the ram 4 of each hydraulic jack 35, 36, 41, 42;
O-rings installed in 3, 44, 56, 57, 10
4, 105 are caps 78, 9 screwed onto the chuck cases 74, 91 of the chuck portions 71, 89;
5 is a ventilation hole, 106 is each hydraulic jack 3
5, 36, 41, 42 oil pipe joints 47, 48,
It shows the communication holes provided at 49, 50, 51, 52, 53, and 54.

Now, when moving a member to be relocated using the continuous relocation jack having the above configuration, the jack base 30 is fixed in a predetermined position via the through hole 31 of the jack base 30, and the through hole 32 of this jack base 30 is The member to be relocated, for example, if this is a long member such as a rod, wire, or plate, it can be directly connected to it, or if it is a heavy object with a certain shape, it can be connected to a long member connected to it. The members are connected to the through hole 70 of the second connecting beam portion 62 and the chuck portion 89.
It is inserted into each of the chuck splitting claws 93 of
By inserting it into each split chuck claw 77, the member to be relocated or a connecting member connected thereto is chucked to each chuck portion 71, 89 of the first and second connecting beam portions 55, 62. That is, each chuck splitting claw 77, 93 of each chuck part 71, 89 connects the first and second connecting beam part 5.
The tapered inner diameter portion 76 of the chuck case 74, 91 resists the elasticity of the springs 79, 94 for the relocated member inserted from the through holes 61, 70 side of the chuck cases 74, 62 or the connecting member connected thereto. ，
While sliding the chuck 92 in the direction of the large diameter part, the inner diameter of each chuck splitting claw 77, 93 expands, and each chuck splitting claw 7
Although the chuck grooves 77a and 93a of 7 and 93 are in an inactive state and allow the insertion of the relocated member or the connecting member, in the removal direction after insertion, the chuck splitting claws 77 and 93 are in the chuck case 74 and 91. While sliding the tapered inner diameter portions 76, 92 toward the small diameter portion, the inner diameter of each chuck split claw 77, 93 closes, and the chuck groove 7 of each chuck split claw 77, 93 closes.
7a and 93a act to chuck the member to be relocated or the connecting member.

Under such conditions, the hydraulic jacks 35 and 36 of the first relocation jack section 33 are first applied to extend the rams 56 and 57, thereby moving the member to be relocated by the stroke amount and moving the member to be relocated by the stroke amount. Each hydraulic jack 35, 36 of the relocation jack part 33
The hydraulic jacks 41 and 42 of the second relocation jack section 34 are operated in conjunction with the operation of the cylinder 6.
3 and 64 to move the relocated member by the stroke amount.

The ram 5 after the hydraulic jacks 35 and 36 of the first relocation jack section 33 are operated.
6, 57 is performed by the cylinder 6 of each hydraulic jack 41, 42 of the second relocation jack section 34.
3 and 64, and conversely, the retracting action of the cylinders 63 and 64 is performed in conjunction with the extension action of the rams 56 and 57 of the respective hydraulic jacks 35 and 36 of the first relocation jack section 34. By performing this operation, it is possible to continuously move the relocated member chucked by the chuck portions 71, 89 of the first and second connecting beam portions 55, 62.

As described above, each chuck part 71, 89 allows the movement of the relocated member without interfering with the operation of each hydraulic jack 35, 36, 41, 42 of the first and second relocation jack parts 33, 34. It can be made possible.

In addition, in connection with the above-mentioned operation, when necessary, by rotating the release handle 84 of the chuck section 71 to release the chuck splitting claw 77, the member to be relocated in the same section can be moved by the operation of the jack section. It can be opened independently of the operation (e.g., removing and removing a relocated member from the chuck part)
can be simplified.

Among the configurations of the illustrated embodiments described above, the first
The number of hydraulic jacks 35, 36, 41, 42 of the second transfer jack sections 33, 34 can be increased or decreased as necessary, and the number of the first and second transfer jacks can be increased or decreased as needed. The configuration of the two connecting beam parts 55 and 62 was also changed while changing the design.
In addition, the configuration of the chuck portions 71, 89 may be implemented while making design changes corresponding to the configuration of the member to be relocated, such as the shape, and is not limited to the configuration shown in the drawings.

Furthermore, the first and second relocation jack parts 3
3, 34 hydraulic jacks 35, 36, 41, 4
2 can also be constituted by another fluid jack that can accommodate the movement of the relocated member.

In addition, the jack for continuous relocation of heavy objects, etc. of the present invention can be used to move linear, rod-shaped, plate-shaped materials such as steel rods, steel plates, and steel wires in the vertical, longitudinal, and horizontal directions, as well as on steel bridges. , lifting, lowering, or vertically or horizontally moving construction of concrete bridges, lifting, lowering, or moving vertically or horizontally of steel, concrete, civil engineering, or architectural structures;
Examples include lifting, lowering, vertical and horizontal movement of all kinds of heavy objects such as nuclear reactors, various tanks, ships, lighthouses, etc.

[Effects of the Invention] According to the jack for continuously moving heavy objects, etc. of the present invention, continuous moving work of heavy objects, etc. can be carried out quickly and easily, and the structure is simple and economical, and furthermore, it can be used with a wide range of equipment. It has the advantage that it does not require much space and can be moved appropriately, efficiently, and safely without adversely affecting the relocated member.

In particular, the configuration improves the performance and speed of continuous operation by arranging the jacks of the first and second jack parts in opposite directions, and supports the chuck parts of the first and second connecting beam parts. It is possible to simplify the process and downsize the entire configuration.

In addition, the chuck portions provided on the first and second connecting beam portions can improve the accuracy of continuous relocation operations at the first and second jack portions, and the manual release means provided on the same portions can improve the accuracy of continuous relocation operations at the first and second jack portions. It is possible to simplify and speed up the relocation operation of the relocation member.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the jack for continuous relocation of heavy objects, etc. of the present invention, Fig. 2 is a partially cutaway side view from the first jack part side in Fig. 1, and Fig. 3. is a partially cutaway side view from the second jack part side in FIG. 1, with some parts omitted;
Figures 4a, b and 5a, b are schematic diagrams showing the configuration of a conventional relocation jack, and Figures 5c, d are schematic diagrams showing the configuration of a ram rotation prevention means in a center hole jack. be. 30... Jyatsuki base, 31, 32, 61,
70, 72... Through hole, 33... First relocation jack part, 34... Second relocation jack part, 35, 3
6, 41, 42...Hydraulic jack, 37, 38,
63, 64...Cylinder, 39, 40, 45,
46...Mounting bracket, 43, 44, 56, 57...
Ram, 47, 48, 49, 50... tension side oil pipe joint, 51, 52, 53, 54... return side oil pipe joint,
55...first connecting beam section, 58, 59, 65, 66
...Connection part, 58a, 59a, 65a, 66a...
...Fitting recesses, 56a, 57a, 63a, 64a...
...Connection end, 60, 69...Bolt, 62...Second
Connecting beam portion, 67, 68...Sliding hole, 71, 89...
...chuck part, 73 ... assistance ring, 74, 91
...Chuck case, 75, 96...Mounting bracket,
76, 92...Inner diameter part, 77a, 93a...Chuck groove, 77,93...Chuck split claw, 78,
95... Cap, 79, 94... Spring,
80... Cylindrical portion, 81... Release member, 82... Pivot shaft, 83... Slide groove, 84... Release handle, 85... Slide pin, 86, 96... Annular groove, 87, 97... Elastic band plate, 88, 98...
Locking ring, 100... Tightening bolt, 101...
...Aperture ring, 102, 103...O ring, 1
04, 105... Ventilation hole, 106... Distribution hole.

Claims (1)

[Claims] 1. Connect the jack base 30, which has a plurality of fixing holes 31 and a through hole 32 in the center for a member to be moved or a connecting member connected thereto, and the tension side oil pipe joints 47, 48 to the tension side hydraulic circuit. At the same time, the return side oil pipe joints 51 and 52 are connected to the return side circuit, and the cylinders 37 and 38 are fixed to the jack base 30 via the mounting fittings 39 and 40, so that they are arranged opposite to the jack base 30. The first relocation jack part 33 consisting of a pair of jacks 35 and 36 and the tension side oil pipe joints 49 and 50 are connected to the tension side hydraulic circuit, and the return side oil pipe joints 53 and 54 are connected to the return side circuit, and By fixing the rams 43 and 44 to the jack base 30 via the mounting fittings 45 and 46, the jack base 30 is provided between the jacks 35 and 36 of the first relocation jack section 33 in a direction perpendicular to the arrangement direction of the jacks 35 and 36. Second relocation jack part 34 consisting of a pair of jacks 41 and 42 arranged opposite to each other
Then, the fitting recesses 58a and 59a provided in the left and right connecting parts 58 and 59 are connected to the first relocation jack part 3.
A member to be moved is fitted to the connecting ends 56a, 57a of the rams 56, 57 of the jacks 35, 36 of No. 3 and fixed by bolts 60, and in the center is a member to be relocated that coincides with the axis of the through hole 32 of the jack base 30. Alternatively, the rams 56, 57 of the jacks 35, 36 of the first relocation jack part 33 are formed by providing a through hole 61 of a connecting member connected thereto.
through the sliding holes 67, 68 of the rams 43, 44 of the jacks 41, 42 of the second relocation jack part 34, which are opened in the first connecting beam part 55 that connects the left and right connecting parts 65, 66. each ram 43,
44 and the fitting recesses 65a, 66a provided in the connecting parts 65, 66 are inserted into the jacks 4.
1,42 cylinders 63,64 rams 43,4
4, and is fixed and attached with a bolt 69, and the center portion thereof is aligned with the axis of the through hole 32 of the jack base 30 and the through hole 61 of the first connecting beam portion 55. The cylinders 63 and 6 of the jacks 41 and 42 of the second transfer jack part 34 are formed by providing a through hole 70 in the member to be transferred or the connecting member connected thereto.
A chuck case 74 in which a second connecting beam part 62 that connects the two connecting beams 4 and a supporting ring 73 having a through hole 72 that communicates with the through hole 61 of the first connecting beam part 55 is fitted inside the open end 74a is attached to the chuck case 74 using a mounting bracket. 75 is attached to the center of the first connecting beam portion 55, and within the tapered inner diameter portion 76 of this chuck case 74, three chuck split claws 77 having chuck grooves 77a carved on the inner circumferential surface can be slid freely. and a spring 79 is interposed between the three chuck splitting claws 77 and the cap 78 to separate each chuck splitting claw 77.
The cap 78 is screwed onto the chuck case 74 while regulating the sliding movement of the chuck, and the chuck split claws 77 are inserted into the cylindrical portion 80 on the open end 74a side of the chuck case 74 against the elasticity of the spring 79. A releasing member 81 to be pressed is slidably installed inside the cylindrical portion 8 of the chuck case 74.
Release handle 84 via pivot shaft 82 on the outside of 0
A slide pin 85 is rotatably mounted in a slide groove 83 disposed opposite to the cylindrical portion 80.
Slide pin 85 through the slide pin 85.
slide pin 8 to the release handle 84 via
The release member 81 connected to the edge of the chuck case 74 is connected to provide a release portion of the chuck splitting claw 77, and the tapered inner diameter portion 76 of the chuck case 74 is connected to the release member 81 connected to the edge of the chuck case 74.
The tapered outer diameter portions of the chuck splitting claws 77 and the chuck splitting claws 77 are formed to correspond to each other, and an annular groove 86 is provided at the outer peripheral end of each chuck splitting claw 77 on the side of the cap 78 of the chuck case 74.
The elastic band plate 87 is wound around the split claw 7 for each chuck.
7 are connected to each other, and a locking ring 88 for the spring 79 is interposed in each chuck splitting claw 77, and a member to be moved is provided at the center of the first connecting beam portion 55, or a linking member connected thereto. chuck part 71,
A mounting bracket 90 is installed at the center of the second connecting beam portion 62.
The chuck case 91 is attached through the chuck case 91, three chuck split claws 93 are slidably installed inside the tapered inner diameter part 92, and the cap 95 is screwed on while a spring 94 is elastically loaded in the opening of the chuck case 91. , and a chuck groove 93a for a member to be transferred or a connecting member connected thereto is carved on the inner circumferential surface of each chuck splitting claw 93, and an opening on the side of the cap 95 of the chuck case 91 of each chuck splitting claw 93 is carved. There is an annular groove 9 on the outer periphery of the part.
6 is provided, and an elastic band-shaped plate 9 is provided in this annular groove 96.
7 is wound to connect each chuck splitting claw 93, and furthermore, each chuck splitting claw 93 has a chuck portion 89 in which a locking ring 98 for the spring 94 is interposed. Jack for relocation.