JP2019210087A - Attitude switching device - Google Patents

Abstract

To provide an attitude switching device that can switch the attitude of a lifted object to an attitude suited for transportation.SOLUTION: An attitude switching device 100 is assembled to a demolished material T which is an object. When a winch 30 is operated in a state where the attitude switching device 100 is lifted together with the demolished material T, and a truck 20 is moved along a rail 10, the position of the center of gravity of the attitude switching device 100 and the demolished material T which have been integrally assembled moves. As the attitude of the lifted demolished material T can be switched along with the movement of the position of the center of gravity, the attitude of the lifted demolished material T can be switched to an attitude suited for transportation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a posture switching device for switching the posture of a suspended object.

2. Description of the Related Art Conventionally, there is known a lifting device that can switch the posture of a suspended concrete segment when the concrete segment removed from the formwork is lifted and transported (see, for example, Patent Document 1).
If the arc-shaped concrete segment is stored with the inner surface of the arc facing downward, it may be deformed so that the arc expands due to its own weight, so a lifting device is required to store it vertically with one side facing down. When transporting a concrete segment lifted by, the posture is switched.
This lifting device includes a horizontally long main beam suspended horizontally by a suspension wire, and a reversing beam rotatably connected to both ends of the main beam. The concrete segment is held by the reversing beam. The posture can be switched.

Japanese Utility Model Publication No. 5-89385

However, the lifting device disclosed in Patent Document 1 is a relatively long device having an inverted beam that is one size larger than the concrete segment and a main beam that is one size larger than the inverted beam. It was unsuitable for use.
For example, when the longitudinal direction of a concrete segment lifted by this lifting device is switched by 90 °, a horizontally long main beam is swung horizontally. Therefore, if there is not enough space for the swiveling of the concrete segment, It may interfere with transportation.

  The objective of this invention is providing the attitude | position switching apparatus which can be switched to the attitude | position suitable for conveying the attitude | position of the suspended target object.

In order to achieve the above object, the present invention provides:
A posture switching device that is assembled to a suspended object and switches the posture of the suspended object,
A rail disposed along the longitudinal direction of the object;
A carriage that is movably installed along the rail and is provided with a hanging portion that is locked by a lifting machine that lifts the object;
Drive means for moving the carriage along the rail;
I was prepared to.

The posture switching device having such a configuration is assembled to an object to be lifted, and the carriage provided with the hanging portion is railed with the posture switching device being lifted together with the object by a lifting machine that holds the hanging portion of the posture switching device. , The position of the center of gravity of the posture changer and the target object assembled together is moved.
In this way, by moving the carriage of the posture switching device that is suspended together with the object along the rails, the position of the center of gravity of the object and the posture switching device assembled together is moved, and the lifting is performed. The posture of the target object can be switched.
In other words, if this posture switching device is used, the posture of the object suspended integrally with the posture switching device can be switched, so that the posture of the suspended object is switched to a posture suitable for carrying. Can do.

Also, preferably
The drive means includes a winch installed on one end side of the rail, and a pulley attached to the carriage,
The wire member fed out from the winch is hung so as to be folded back by the pulley, and the end of the wire member folded back by the pulley is fixed at a predetermined position on the winch side,
The posture switching device is configured to be hung by the lifting machine together with the object in a posture corresponding to the length of the wire member fed from the winch.

Here, the “predetermined position” at which the end of the wire member is fixed refers to, for example, a locking portion provided at one end of the rail, a locking portion provided in the main body of the winch, or a support base of the winch. It is assumed that the locking portion is provided.
In addition, here, “the posture corresponding to the length of the wire member fed out from the winch” means that the object assembled integrally, the position of the center of gravity of the posture switching device, the hanging portion, and the lifting machine are It is assumed that the posture is in accordance with the vertically aligned balance.
That is, according to the length of the wire member drawn out from the winch, the object and the attitude switching device assembled together by moving the carriage of the attitude switching device suspended along with the object along the rail. The posture of the suspended object can be switched by moving the position of the center of gravity of the object.

And, for example, when the wire member is fed out from the winch in a state where the posture switching device is lifted together with the object to be lifted, the carriage moves in a direction away from the winch, and the object being lifted as the center of gravity moves Can be switched.
In addition, when the wire member is wound around the winch in the state where the posture switching device is lifted together with the object to be lifted, the carriage moves in the direction approaching the winch, and as the position of the center of gravity moves, the object being lifted is moved. The posture can be switched.

Also, preferably
On one end side of the rail, a first stopper is provided for restricting movement of the carriage so as not to approach the winch too much,
On the other end side of the rail, a second stopper for restricting movement of the carriage so as not to be separated from the winch is provided.

  By doing so, the carriage of the posture switching device suspended together with the object can be suitably moved along the rail, and the posture of the suspended object can be suitably switched.

  ADVANTAGE OF THE INVENTION According to this invention, it can switch to the attitude | position suitable for conveying the attitude | position of the target suspended with the attitude | position switching apparatus.

It is the top view (a) and side view (b) which show the attitude | position switching apparatus of this embodiment. It is an enlarged view of the trolley | bogie part of the attitude | position switching apparatus of this embodiment, and is a top view (a), a side view (b), and a front view (c). It is explanatory drawing (a) (b) (c) (d) (e) (f) (g) regarding the switching of the attitude | position of the target object by an attitude | position switching apparatus. It is explanatory drawing which shows an example of the aspect which uses an attitude | position switching apparatus.

  Embodiments of a posture switching device according to the present invention will be described below in detail with reference to the drawings. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

The posture switching device is a device that is assembled to a lifting object and used to lift the object, and is particularly used to switch the posture of the lifting object.
The posture switching device assembled to the object to switch the posture of the suspended object is an apparatus used in a state where it is lifted together with the object.
In the present embodiment, a posture switching device used to switch a posture by lifting a dismantling material (target object) using the dismantling material disassembled by cutting a shield tunnel or the like as a target object will be described.

The posture switching device 100 according to the present embodiment is disposed along the longitudinal direction of the dismantling material T, for example, as shown in FIGS. 1 (a), 1 (b), 2 (a), 2 (b), and 2 (c). A pair of rails 10, a carriage 20 movably installed along the rails 10, a winch 30 and a pulley 31 as drive means for moving the carriage 20 along the rails 10 are provided.
The carriage 20 is provided with a hanging portion 21 that is locked by a lifting machine that lifts the dismantling material T.

The rail 10 is a member made of, for example, I-shaped steel or H-shaped steel, and is formed in a curved shape according to the curvature of the arc outer surface of the dismantling material T.
A plurality of (seven in this embodiment) steel plates 11 arranged in a direction intersecting with the rails 10 are fixed to the lower surfaces of the pair of rails 10 by welding or the like at predetermined intervals.
The steel plate 11 is fixed to the demolition material T by bolts B, and a pair of rails 10 are disposed on the outer surface of the arc of the demolition material T.

In addition, a first stopper 12 is provided on one end side of the rail 10 (a winch 30 side (support base 30a side) described later), and a second stopper 13 is provided on the other end side of the rail 10.
The first stopper 12 and the second stopper 13 are members for restricting the movement of the carriage 20 that moves along the rail 10. The carriage 20 has a movement range between the first stopper 12 and the second stopper 13. Yes.
The first stopper 12 on one end side of the rail 10 has a function of restricting movement of the carriage 20 so as not to approach a winch 30 described later. The second stopper 13 on the other end side of the rail 10 is The cart 20 has a function of restricting its movement so as not to be too far from a winch 30 described later.

  The carriage 20 includes a carriage main body 20a, a suspension 21 provided on the upper surface of the carriage main body 20a, four wheel parts 22 provided on the carriage main body 20a, and rubber provided before and after the carriage main body 20a. A buffer 23 and the like are provided.

The hanging part 21 is a member that is locked by a lifting machine such as a crane. For example, a hook F of the crane is hung on the hanging part 21.
Moreover, the ring 21a (refer FIG. 3) may be connected with this suspension part 21, and you may make it hook the hook F of a crane on the ring 21a. In that case, the hook F of the crane is hung on the hanging portion 21 via the ring 21a.

  The wheel portion 22 includes one upper wheel 22a that rolls in contact with the upper surface of the upper flange of the rail 10, and four lower wheels 22b that roll in contact with the lower surface of the upper flange of the rail 10. The upper wheel 22a and the lower wheel 22b rotate with the upper flange of the rail 10 interposed therebetween, and the carriage 20 moves along the rail 10.

  When the movement of the carriage 20 is restricted by the first stopper 12 and the second stopper 13 provided on the rail 10, the rubber buffer 23 buffers the impact of the carriage 20 hitting the first stopper 12 and the second stopper 13. It is a member for.

The winch 30 that constitutes the driving means is installed on a support base 30 a provided in an arrangement on one end side of the rail 10. Note that the support 30a is fixed to one end of the rail 10 by welding or the like. The support base 30a is fixed to the dismantling material T by bolts B.
The pulley 31 constituting the driving means is attached to the carriage 22 (the carriage main body 20a) and is rotatable about the central axis thereof.
The pulley 31 is swingably attached to the carriage 22 (the carriage main body 20 a) via a support shaft 31 a that is orthogonal to the central axis of the pulley 31 and orthogonal to the longitudinal direction of the rail 10.

And the wire member 30b drawn out from the winch 30 is hung so that it may be turned back by the pulley 31, and the end 30c of the wire member 30b turned back by the pulley 31 is a position on one end side of the rail 10 that is the winch 30 side ( For example, it is fixed to the locking portion of the support 30a.
Further, the predetermined steel plate 11 (in this embodiment, the third and fifth steel plates 11 from the left in the drawing of FIG. 1B) is fed out from the winch 30 or wound around the winch 30. A guide pulley 32 for guiding the wire member 30b is disposed.

The posture switching device 100 having such a structure and assembled to the dismantling material T is configured to be suspended by the hoisting machine together with the dismantling material T in a posture in which the winch 30 is not positioned higher than the carriage 20. .
Here, in order for the posture switching device 100 to be suspended by the lifting machine together with the dismantling material T in a posture in which the winch 30 is not positioned higher than the cart 20, the arrangement of the rail 10, the cart 20, the winch 30, and the like is set. In the state where the carriage 20 is closest to the winch 30 (see FIG. 3G), the posture switching device 100 is assembled to the dismantling material T with a weight balance where the winch 30 is not positioned higher than the carriage 20. Yes.
That is, the posture switching device 100 is assembled to the dismantling material T so that the winch 30 is suspended by the lifting machine together with the dismantling material T in a balance that maintains a posture in which the winch 30 is not positioned higher than the carriage 20.

And in the attitude | position switching apparatus 100 of the state suspended with the dismantling material T, the trolley | bogie 20 moves to the direction away from the winch 30 by extending | stretching the wire member 30b from the winch 30. FIG.
Further, in the posture switching device 100 in a state of being lifted together with the dismantling material T, the carriage 20 moves in a direction approaching the winch 30 by winding the wire member 30b around the winch 30.

Specifically, as shown in FIG. 3 (a), the hook F of the crane (lifting machine) is hung on the hanging portion 21 via the ring 21a, and the posture switching device 100 is lifted together with the dismantling material T. When the wire member 30b is fed out from the winch 30 until the carriage 20 hits the second stopper 13, the dismantling material T can be suspended in a vertically oriented posture (90 ° posture).
When the wire member 30b is wound around the winch 30 from this state, the carriage 20 moves in a direction approaching the winch 30, and the posture of 75 ° shown in FIG. 3 (b), the posture of 60 ° shown in FIG. 3 (c), 45 ° shown in FIG. 3 (d), 30 ° shown in FIG. 3 (e), 15 ° shown in FIG. 3 (f), 0 ° shown in FIG. 3 (g) (sideways The dismantling material T can be hung by switching to (posture). In addition, in a state where the dismantling material T is hung in a horizontal posture (0 ° posture), the carriage 20 hits the first stopper 12.

Similarly, as shown in FIG. 3 (g), in the state where the hook F of the crane (lifting machine) is hung on the hanging part 21 via the ring 21a and the posture switching device 100 is lifted together with the dismantling material T, the cart 20 When the wire member 30b is wound around the winch 30 until it comes into contact with the first stopper 12, the dismantling material T can be suspended in a lateral orientation (0 ° orientation).
When the wire member 30b of the winch 30 is unwound from this state, the carriage 20 moves in a direction away from the winch 30, and the posture of 15 ° shown in FIG. 3 (f), the posture of 30 ° shown in FIG. 3 (d), 45 ° posture, FIG. 3 (c), 60 ° posture, FIG. 3 (b), 75 ° posture, 90 ° posture (vertical orientation). The dismantling material T can be hung by switching to (posture). In addition, in a state where the dismantling material T is suspended in a vertically oriented posture (90 ° posture), the carriage 20 abuts against the second stopper 13.

As shown in FIGS. 3A to 3G, the posture switching device 100 is assembled to the dismantling material T, the winch 30 is operated in a state where the posture switching device 100 is lifted together with the dismantling material T, and the rail When the carriage 20 is moved along the position 10, the disassembled material T and the position of the center of gravity G of the posture switching device 100 are moved together. As the position of the center of gravity G moves, the posture of the dismantled material T that is suspended can be switched.
That is, by moving the carriage 20 of the posture switching device 100 suspended together with the dismantling material T along the rail 10, the positions of the disassembly material T and the gravity center G of the posture switching device 100 that are assembled together are moved. In this way, the posture of the dismantling material T that is suspended can be switched.

Note that, as shown in FIGS. 3A to 3G, the combined center of gravity G of the posture switching device 100 and the dismantling material T is inside the middle point of the arc of the dismantling material T.
When the dismantling material T and the posture switching device 100 assembled together are hung on the crane hook F via the suspension part 21 of the carriage 20, the hook F → the suspension part 21 → the center of gravity G in this order from above. It becomes lined up vertically.
Here, when the carriage 20 (suspending portion 21) is moved according to the length of the wire member 30b drawn out from the winch 30, the hook F, the suspended portion 21, and the center of gravity G are integrated so as to maintain a vertically aligned relationship. The postures of the dismantled material T and the posture switching device 100 that are assembled can be switched.
As described above, the posture switching device 100 uses the rail 10, the carriage 20, and the winch 30 (driving means) to continuously change the disassembled material T and the center of gravity G of the posture switching device 100, which are integrally assembled, The posture of the dismantled material T being lifted can be switched.

For example, as shown in FIG. 3A, if the dismantling material T is suspended in a vertical orientation (90 ° orientation), the space is narrow in the lateral direction (front-rear direction and left-right direction). Also, the dismantling material T can be transported in a suspended state.
In addition, as shown in FIG. 3A, if the dismantling material T is suspended in a vertical orientation (90 ° orientation), the rotation radius when rotating around the vertical axis is small. Therefore, even in a narrow space in the lateral direction (front-rear direction and left-right direction), the direction of the dismantling material T can be switched by rotating around a vertical axis.

For example, as shown in FIG. 3 (g), if the dismantling material T is suspended in a lateral orientation (0 ° orientation), the dismantling is possible even in a narrow space in the vertical direction (vertical direction). The material T can be transported in a suspended state.
Further, as shown in FIG. 3G, if the dismantling material T is suspended in a lateral orientation (0 ° orientation), even in a space narrow in the vertical direction (vertical direction), The direction of the dismantling material T can be switched by rotating around the axis.

  And, for example, as shown in FIG. 4, when the dismantled material T disassembled by cutting the shield tunnel in a narrow space is lifted by the overhead crane C, which is a lifting machine, and transported to the dismantled material temporary storage site R, If the posture of the dismantled material T being lifted is appropriately switched, the dismantled material T can be transported suitably.

  As described above, in the posture switching device 100 of the present embodiment, the posture switching device 100 is assembled to the dismantling material T, and the posture of the dismantling material T lifted together with the posture switching device 100 is switched between the vertical direction and the horizontal direction. It is possible to switch to a posture suitable for carrying the posture of the dismantled material T that has been lifted.

In the above embodiment, the case where the winch 30 and the pulley 31 are used as driving means for moving the carriage 20 along the rail 10 has been described as an example. However, the present invention is not limited to this. .
For example, a rack and including a pinion that is rotated in the forward direction and the reverse direction by a motor installed on the carriage 20 (the carriage body 20a), and a rack that meshes with the pinion installed along the rail 10. -You may make it move the trolley | bogie 20 along the rail 10 using the mechanism of a pinion as a drive means.
Even with the attitude switching device 100 using the rack and pinion mechanism as the driving means, the attitude of the dismantling material T suspended together with the attitude switching device 100 can be switched to an attitude suitable for carrying.

  In the above embodiment, the arc-shaped dismantling material T obtained by disassembling the shield tunnel has been described as an example of the object to be lifted, but the present invention is not limited to this, and the object to be lifted Is optional, and may be, for example, a rectangular block material.

  In addition, it is needless to say that other specific detailed structures can be appropriately changed.

DESCRIPTION OF SYMBOLS 10 Rail 11 Steel plate 12 1st stopper 13 2nd stopper 20 Bogie 20a Bogie body 21 Hanging part 21a Ring 22 Wheel part 22a Upper wheel 22b Lower wheel 23 Rubber buffer 30 Winch (drive means)
30a Support base 30b Wire member 31 Pulley (drive means)
31a Support shaft 32 Guide pulley 100 Posture switching device T Demolition material (object)
F hook (hook of lifting machine)
C Overhead crane (lifting machine)
G center of gravity

Claims (3)

A posture switching device that is assembled to a suspended object and switches the posture of the suspended object,
A rail disposed along the longitudinal direction of the object;
A carriage that is movably installed along the rail and is provided with a hanging portion that is locked by a lifting machine that lifts the object;
Drive means for moving the carriage along the rail;
A posture switching device characterized by comprising: The drive means includes a winch installed on one end side of the rail, and a pulley attached to the carriage,
The wire member fed out from the winch is hung so as to be folded back by the pulley, and the end of the wire member folded back by the pulley is fixed at a predetermined position on the winch side,
The said attitude | position switching apparatus is comprised so that it may be suspended by the said lifting machine with the said object with the attitude | position according to the length of the wire member paid | fed out from the said winch. Posture switching device. On one end side of the rail, a first stopper is provided for restricting movement of the carriage so as not to approach the winch too much,
The posture switching device according to claim 2, wherein a second stopper is provided on the other end side of the rail to restrict movement of the carriage so as not to be separated from the winch.

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