JP2503482Y2 - Lift up device - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> The present invention is used for raising and lowering a transported object along an inclined line such as a structure having an inclined surface that inclines inward as it goes upward or the outside of a standing wall. Related to a lift-up device.

《Conventional technology》 Conventionally, when constructing an observation room on the upper part of a tower such as an observation tower, after first constructing the tower part, the observation room is pre-assembled on the ground, and this observation room There is a method of lifting and attaching it to a predetermined position.

By the way, in order to lift a transported object such as an observation room in this way, for example, a lift-up device disclosed in JP-A-1-97758 is used.

FIG. 5 shows such a conventional lift-up device 1, in which a fixed beam 3 fixed horizontally to a structure 2 such as a tower, a movable beam 4 arranged above the fixed beam 3, and these fixed beams. 3 and the movable beam 4 are provided with a vertical jack 5 oriented in the vertical direction, and the fixed beam 3 and the movable beam 4 are provided.
A suspension rod 6 for suspending a transported object is penetrated through, and a portion where the suspension rod 6 penetrates the fixed beam 3 and the movable beam 4 is provided between the suspension rod 6 and the fixed beam 3 and the movable beam 4. Nuts 7 and 8 for engaging and disengaging each are provided.

The suspension rod 6 has a male screw threaded over the entire length thereof, and the nuts 7 and 8 are screwed into the male screw portion.

Then, in order to lift the transported article suspended on the suspension rod 6, first, the vertical jack 5 is extended (jacked up) from the state shown in the drawing to raise the movable beam 4.

Then, the suspension rod 6 is lifted while being locked to the movable beam 4 via the nut 8, and the transported object is lifted by the extension amount of the vertical jack 5.

At this time, the nut 7 is disengaged from the fixed beam 3 and positioned upward by the amount by which the suspension rod 6 is raised, and the nut 7 is rotated in the downward direction while maintaining the extended state of the vertical jack 5. Then, the fixed beam 3 is locked.

Next, when the vertical jack 5 is shortened in this state,
Along with this, the movable beam 4 is also lowered, but at this time, since the suspension rod 6 is locked to the fixed beam 3 via the nut 7, the suspension rod 6 is held at the jacked-up position, The nut 8 retained on the movable beam 4 is left at the jack-up position.

Then, when the left-over nut 8 is rotated in the lowering direction and locked to the movable beam 4, the state shown in the figure is obtained. In this state, however, the transported object is the same as before the lift-up operation. It means that the vertical jack 5 is lifted by the jacked-up amount.

Therefore, by repeating the lift-up operation, it is possible to gradually lift the transported object to the target position.

<< Problems to be Solved by the Invention >> However, in such a conventional lift-up device 1, since the movable beam 4 is located above the fixed beam 3, the vertical jack 5 provided between them prevents the tilt thereof. Therefore, both ends of this are fixed to the fixed beam 3 and the movable beam 4.

In addition, a suspension rod 6 that penetrates the fixed beam 3 and the movable beam 4
When an extremely long rod-shaped body made of steel is used for the above, some bending is allowed, but this bending stress becomes extremely large.

Therefore, as shown in FIG. 6, when the structure 2 is a tower body, the outer surface of the tower body is an inclined surface 2a that inclines inward (toward the center of the tower body) as it goes upward, When the lift-up device 1 is attached to the top of the, and when the observation room 9 as a transported object is hung on the suspension rod 6, the inclined surface 2a becomes an obstacle and the suspension rod 6 is fixed as illustrated. The lower end of the beam 3 is bent outward.

Therefore, a large bending stress is generated in the suspension rod 6, and this acts as a force F for pressing the movable beam 4 toward the center of the tower body, so that the vertical jack 5 fixed to the movable beam 4 is laterally moved. The load in the direction will be input.

However, although the vertical jack 5 has a remarkably large strength in the expansion / contraction direction, it does not have sufficient strength for lateral force, and therefore the vertical jack 5 may be damaged or fall.

Therefore, in such a conventional lift-up device 1, as a means for preventing a lateral force from acting on the vertical jack 5, for example, a guide or the like that prevents the movable beam 4 from moving horizontally with respect to the fixed beam 3. Therefore, there is a problem that the device is complicated.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lift-up device capable of preventing lateral force from acting on a vertical jack without complicating the device.

<Means for Solving the Problem> In order to achieve such an object, the present invention is a lift-up device for vertically raising and lowering a transported object, in which a horizontal projection is provided above a position where the transported object is to be raised. The fixed beam fixed to the inclined surface and the lower side of the fixed beam by pivotally attaching the upper clevis or bracket to the bracket or clevis projecting on the lower side of the fixed beam via a pin A vertical jack rotatably attached to the vertical jack; A tension member that vertically penetrates the fixed beam and the movable beam and suspends the transported object, and a tension member that is provided in each of the portions where the tension member penetrates the fixed beam and the movable beam. And
The tension member and the fixed beam and the movable beam are provided with engagement and disengagement members that can be engaged and disengaged, respectively.

<Operation> In the lift-up device of the present invention having the above-described configuration, the movable beam is arranged below the fixed beam, and when the transported object is lifted, first, the movable beam is placed between the fixed beam and the movable beam. The vertical jack provided is extended to push down the movable beam, and in this state, the engaging / disengaging member is locked to the movable beam.

Then, in this state, by shortening the vertical jack and raising the movable beam, the tension member rises together with the transported object, and in this state, the engaging / disengaging member is locked to the fixed beam to extend the vertical jack again. By repeating the operation, the load is gradually lifted.

By the way, since the vertical jack is rotatably attached to each of the fixed beam and the movable beam, the movable beam is fixed to the fixed beam even when the tension member is curved when the article is lifted along the inclined surface. With respect to the vertical jack, it is possible to easily move horizontally and to release the bending stress when the tensile member is bent, thereby preventing lateral force from acting on the vertical jack.

<< Embodiment >> An embodiment of the present invention will be described in detail below with reference to the drawings.

1 and 2 show a lift-up device 10 showing an embodiment of the present invention, FIG. 1 is a front view and FIG. 2 is a side view.

That is, the lift-up device 10 is provided with a fixed beam 12 arranged in a horizontal direction, a pair of vertical jacks 14 attached to the lower side of the fixed beam 12, and a lower end of the vertical jack 14, and the fixed beam 12 is attached to the fixed beam 12. A movable beam 16 parallel to the fixed beam 12, a suspension rod 18 as a tension member that penetrates the fixed beam 12 and the movable beam 16 in the vertical direction, and a portion where the suspension rod 18 penetrates the fixed beam 12 and the movable beam 16. The nut 20 and the nut 22 are provided as engaging and disengaging members, respectively, and are generally configured.

The fixed beam 12 is fixed to a tower body T which is tapered as it goes upward like an observation tower or the like, and this mounting position is more than the mounting position of a later-described object 26 to be lifted by the hanging rod 18. It is fixed to the upper part.

The vertical jack 14 is configured as a hydraulic jack,
Clevis 14a formed at both ends are pivotally attached to a bracket 12a protruding below the fixed beam 12 and a bracket 16a protruding above the movable beam 16 via pins 24, respectively. Thus, the vertical jack 14 is movably attached to the fixed beam 12 and the movable beam 16.

The movable beam 16 is supported by the vertical jack 14 and is movable in the vertical direction with respect to the fixed beam 12.

As the suspension rod 18, a sufficiently long PC steel rod, PC steel stranded wire, or the like is used, and when the PC steel rod is used, a male screw portion 18a is formed over the entire length as shown in the drawing.

The suspension rod 18 includes the fixed beam 12 and the movable beam.
The large-diameter holes 12b and 16b formed in 16 are loosely fitted and penetrated.

The nuts 20 and 22 are screwed into the male screw portion 18a of the suspension rod 18, the nut 20 is arranged on the upper side surface of the fixed beam 12, and the nut 22 is arranged on the upper side surface of the movable beam 16. , 22 are brought into contact with the fixed beam 12 and the movable beam 16 to be locked, and the fixed beam 12 and the movable beam 16
It becomes a detached state by moving away from.

In the lift-up device 10 of the present embodiment having the above-described structure, the transported object 26 is lifted by the operation shown in FIGS. 3 (a) to (d).

In the present embodiment, the transported object 26 is an observation room pre-assembled on the ground, and this observation room is installed, for example, at the top of the tower T.

First, in (a), as shown in FIG. 1, the vertical jack 14 is in a shortened state, and the nuts 20 and 22 are locked to the upper surfaces of the fixed beam 12 and the movable beam 16, respectively. It is in.

Then, when the vertical jack 14 is extended in this state,
As shown in (b), the movable beam 16 descends along the suspension rod 18, and at this time, the nut 22 is left behind and put into a detached state.

In this case (b), since the suspension rod 18 is locked to the fixed beam 12 via the nut 20, the transported object 26 is held at the position (a) without being dropped.

Next, as shown in (c), the nut 22 is rotated in the lowering direction so that it is brought into contact with the movable beam 16 and brought into a locked state.

Then, in this (c), the suspension rod 18 is locked via the nut 22, and in this state, when the vertical jack 14 is shortened as shown in (d), the suspension rod 18 rises together with the movable beam 16. Then, the transported article 26 suspended from the suspension rod 18 is lifted by the stroke 1 when the vertical jack 14 is shortened.

By the way, in this (d), the nut is attached to the suspension rod 18.
Since 20 moves upward and is in a state of being separated from the fixed beam 12, the vertical jack 14 is shortened, and then the nut 20 is rotated in a lowering direction to be locked to the fixed beam 12, The state is set to (a).

Therefore, in the lift-up device 10 of the present embodiment, by repeating the operations (a) to (d), the transported object 26 can be gradually lifted and installed on the top of the tower T.

By the way, the lift-up device 10 of this embodiment has a fixed beam 12
A movable beam 16 is provided below the both ends of the vertical jack 14 arranged between these beams 12 and 16, and the fixed beam 12 and the movable beam
Since the movable beams 16 are movably attached to the 16 via the pins 24, the movable beam 16 can be moved relative to the fixed beam 12 in the left-right direction in FIG. Even when it is displaced, it is possible to prevent lateral force from acting on the vertical jack 14.

That is, FIG. 4 shows a state in which the object to be transported 26 is being lifted along the tower body T. Since the tower body T is tapered as it goes upward, the outer surface of the tower body T goes upward. The inclined surface S is inclined inward (toward the center of the tower T) as it goes.

Therefore, in the tower T having a considerable height above the ground, when the transported object 26 is lifted, the transported object 26 is restricted by the inclined surface S, so that the supporting position of the suspension rod 18 of the lift-up device 10 and the transported object 26. The mounting position of the suspension rod 18 is largely displaced in the horizontal direction, and the suspension rod 18 inclines as shown in FIG.

In this way, the suspension rod 18 formed of the PC steel rod inclines, but the vertical jack 14 allows the inclination of the suspension rod 18 because the both ends attached to the fixed beam 12 and the movable beam 16 are easily rotated. Therefore, it is possible to prevent lateral force from acting on the vertical jacks 14 and prevent damage to the vertical jacks 14.

Preferably, a ball pedestal 23 with a through hole is provided above the hanging rod penetrating portion of the fixed beam 12 and the movable beam 16, the hanging rod 18 is inserted through this, and the nut 20 and the nut 22 are abutted.

In the above description, the case of lifting the transported object 26 has been described, but the lift-up device 10 can be used when lowering the transported object 26 along the inclined surface S, and at the time of this lowering, the above-mentioned FIG. It suffices to reverse the procedure shown in.

Further, in this embodiment, the tower body T having the inclined surface S is formed.
I disclosed the case where the lift-up device 10 was attached to
It goes without saying that the lift-up device of the present invention can be applied to the case where the transported object is inclined, without being limited thereto.

Further, in this embodiment, the case where the number of the hanging rod 18 is one and the number of the vertical jacks 14 is two is disclosed.
The numbers of 18 and vertical jacks 14 are not limited.

Furthermore, a suspension rod made of PC steel rod as a tensile material
In relation to using 18, the male screw portion 18a is formed over the entire length thereof, and the case where the nuts 20 and 22 screwed to the male screw portion 18a are used as the engagement / disengagement member has been disclosed. Can also use other materials, such as PC steel stranded wire,
In this case, since it is impossible to form the male screw portion, a blade grip may be used as the engaging / disengaging member.

That is, the engagement / disengagement member only needs to have a function of engaging and disengaging the tension member with the fixed beam and the movable beam.

The vertical jack 14 of this embodiment has both ends movably attached to the fixed beam 12 and the movable beam 16, and the vertical jack 14 is configured to easily fall down. Since it has a structure in which it is suspended by the fixed beam 12, there is no hindrance to the function of lifting the transported object 26. Further, the brackets 12a and 16a and the clevis 14a are in a relative relationship, and contrary to FIG. 1, the clevis is attached to the beams 12 and 16.
14a may be provided, and the vertical jack 14 may be provided with brackets 12a and 16a.

<< Advantages of the Invention >> As described above, in the lift-up device of the present invention, the movable beam is arranged below the fixed beam, and the vertical jack is rotatably provided between the fixed beam and the movable beam. The vertical jack can be easily tilted to release the bending stress when the tension member is bent even when the load is bent when the load is lifted along the inclined surface. it can.

Therefore, since the lateral force does not act on the vertical jack itself, it is possible to prevent the vertical jack from being damaged by the lateral force and significantly improve the durability.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of an embodiment of a lift-up device according to the present invention, FIG. 2 is a side view of the same, FIG. 3 (a),
(B), (c) and (d) are explanatory views showing the operation of one embodiment of the lift-up device according to the present invention in order, and FIG. 4 is an illustration of one embodiment of the lift-up device according to the present invention. FIG. 5 is an explanatory view showing an operating state, FIG. 5 is a main part configuration diagram of a conventional lift-up device, and FIG. 6 is an explanatory diagram showing an operating state of the conventional lift-up device. 10 …… Lift up device, 12 …… Fixed beam 14 …… Vertical jack, 16 …… Movable beam 18 …… Suspension rod (tensile material) 20,22 …… Nut (disengagement member) 24 …… Pin, 26… … Cargo

Claims (1)

(57) [Scope of utility model registration request] 1. A lift-up device for diagonally raising and lowering a transported object, a fixed beam 12 projecting horizontally and fixed to the inclined surface above a position where the transported object is to be lifted, A vertical jack that is rotatably attached to the lower side of the fixed beam by pivotally attaching the upper clevis or bracket to a bracket or clevis protruding from the lower side of the fixed beam through a pin, and the vertical jack. The lower clevis or bracket is pivotally attached to the bracket or clevis via a pin so that the movable beam rotatably attached to the lower end of the vertical jack and the fixed beam and the movable beam penetrate vertically. The tension member for suspending the transported object and the tension member respectively provided in the portions penetrating the fixed beam and the movable beam. Lifting apparatus, wherein a and a respectively locking and disengageable engaging and disengaging member.