JPH09301656A - Construction tower dismantling equipment for construction elevators - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a steel tower assembling / disassembling device for a construction elevator, which enables safe and easy addition / disassembly of a steel tower. SOLUTION: A pair of left and right sides is installed on a moving table 21 installed along a tower 1 of an elevator on a top joint stand 10 having an automatic lifting function, at a distance wider than a width dimension of the tower 1 of the elevator. Arms 24, 24 are provided, and a plurality of steel tower support pieces 25 that can be moved forward and backward with respect to the side portions of the steel tower 1 are provided on both arms 24, 24, respectively, and the movable table 21 is moved forward most. Position the arms 24, 24
It is possible to hold the steel tower segment 1A to be operated by the steel tower supporting piece 25 attached to the above-mentioned steel tower and correspond to the installation position of the steel tower.
A guide rail 13 of a moving table 21 is provided so that the steel tower supporting piece attached to the above can be moved to a position deviated from the installation position of the steel tower.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rack-type construction elevator equipped with a carrier that is moved up and down by the meshing drive of a rack attached to a steel tower and a drive gear, and is elevated along the steel tower. The present invention relates to a steel tower assembling / disassembling device for a construction elevator, in which the assembly or dismantling of a steel tower is facilitated by a drivable top bridge.

[0002]

2. Description of the Related Art Conventionally, a steel tower for guiding and supporting a carrier in an elevator for construction needs to be extended in order to increase the lift of the building as the construction process of the structure progresses. Further, in order to raise and lower the carrier at high speed, a method of balancing the counterweight by connecting the counterweight to a carrier and a rope around the guide sheave provided at the top of the tower is used in order to reduce the driving force. To this end, the top of the steel tower is provided with a guide sheave that guides and supports the counterweight, and is provided with a top joint table that can be moved up and down by using the steel tower as a guide when the steel tower is replenished.

[0003] In the above-mentioned steel tower replenishing work, since the steel tower segments are carried up to a higher position to be assembled, the steel tower segments are generally hoisted and assembled by using a crane installed in the frame of the building under construction. The method is adopted. In addition to this, a method is also adopted in which a segment of a steel tower is loaded onto a carrier and carried up, and a small crane attached to this carrier suspends and connects the segment of the steel tower onto an existing steel tower.

Further, when the construction elevator is dismantled after the work is completed, the dismantling work is carried out by sequentially suspending the steel tower segments by means of a construction crane mainly installed in a high place of the building. There is.

[0005]

When the steel tower segment is suspended by a crane installed on the frame or the like as described above, the workability is relatively good.
The crane cannot be used if the elevator installation location is outside the crane working radius. Alternatively, due to the rationalization of work, the crane is often dedicated to the hoisting work of construction materials and the like, and it is often difficult to use it in the process. For this reason, there is a demand for a means that can efficiently and safely carry out the work of adding a steel tower with the extension of the lifting head using the construction elevator alone.

[0006] Further, even when the construction elevator is no longer needed and the dismantling work is carried out after the construction is completed, if the dismantling work cannot be done using the crane, it is required to dismantle the steel tower by its own function. In this case, work using a small crane attached to a conventional carrier is low in workability, it is difficult to dismantle in a short time when the tower is large, and it is dangerous because it is poor in safety. There is a problem.

[0007] The present invention solves such problems,
A steel tower assembly that has a self-propelled top tower directly holds a steel tower segment and can be installed or removed from an existing steel tower, and can safely and easily add or dismantle steel towers. The purpose is to provide a device.

[0008]

DISCLOSURE OF THE INVENTION The present invention, which is configured to achieve such an object, is an interlocking drive type construction elevator, wherein a top joint is provided on the top of a steel tower, and the steel tower is mounted on both sides of the tower. A steel tower holding device in which a pair of arms provided with a mechanism that can be supported is erected is installed, and the steel tower holding device is movable from the front side of the steel tower to the steel tower installation position, and the top frame is attached to the drive machine. It is characterized by having a function of being driven up and down along the steel tower installed by.

In the steel tower assembling / disassembling apparatus for a construction elevator according to the present invention, a pair of left and right units are installed as a steel tower holding device on the moving table installed on the top connecting stand at a distance wider than the width of the steel tower of the elevator. Arms are provided, and steel tower holding means capable of advancing and retracting with respect to the side portions of the steel tower are respectively provided on upper portions of these arms, and the steel tower holding means provided with the arms at the most advanced position of the movable table. A tower guide is provided so that the tower tower segment to be operated by can be corresponded to the tower installation position, and when the moving table moves backward, the steel tower holding means with the arm can move to a position outside the tower installation position. Is preferred.

Further, the steel tower holding means in the steel tower holding device includes a support piece insertion hole provided in an upper portion of the arm in a direction orthogonal to a side surface of the steel tower, and a side surface of the steel tower penetrating the support piece insertion hole. And a supporting piece for holding the steel tower by inserting it into the inside of the steel tower and engaging the lower surface of the lateral member constituting the steel tower. Further, the steel tower holding means may be a clamp mechanism that is arranged toward the side surface of the steel tower at the upper part of the arm and holds a constituent member of the steel tower that can move back and forth.

Further, in the present invention, a pair of left and right columns are erected on the steel tower holding device on a moving table installed on the top connection table at intervals wider than the width dimension of the steel tower of the elevator. An arm, which is vertically moved by a linear actuator for a required stroke, is provided on each of these columns so as to project to the side of the tower, and an intermediate portion of each arm moves forward and backward with respect to the side of the tower. A possible steel tower holding mechanism is supported by bearings with their rotating shafts aligned, and is provided so as to be able to move forward and backward with respect to the side part of the steel tower, and by the steel tower holding mechanism provided with the arm at the most advanced position of the movable table. The steel tower segment to be operated can correspond to the steel tower installation position, and the steel tower holding mechanism attached to the arm rotates the steel tower segment when the movable table moves backward on the top connection table. It can also be assumed that the mobile base of the guide is provided so as to be movable up direction convertible position.

Further, it is preferable that the steel tower holding mechanism in the present invention is provided with a holding means capable of gripping and holding a key point of a constituent member of the steel tower segment held at the tip of the rotary support shaft. It should be noted that the top connection table is provided with an automatic stop mechanism for stopping the ascent when the steel tower holding device adds a steel tower segment held by the steel tower holding means provided with the arm to the installed steel tower or reaches a position where a removing operation is performed. It is more preferable that the work of assembling or removing the steel tower segment with respect to the existing steel tower can be safely carried out.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a steel tower assembling / disassembling apparatus for a construction elevator according to the present invention will be described with reference to the drawings.

FIG. 1 is a view showing a concrete example of a construction elevator in which the steel tower assembling / disassembling apparatus according to the present invention is used. (A) is a front view and (b) is a right side surface. It is a figure. FIG. 2 is a front view showing a specific example of a steel tower assembling / disassembling apparatus for a construction elevator according to the present invention. FIG. 3 is FIG.
It is the side view seen from the right side. FIG. 4 is a plan view of FIG.

In these figures, a steel tower 1 which is erected and supported by a building frame is assembled to a required height by stacking a large number of steel tower segments 1A divided into required lengths. Guide rails 1a for guiding the carrier 2 are attached to both sides of the steel tower 1, and a rack 1b is attached to the front surface in parallel with the guide rails 1a so as to be continuous. The carrier 2 is a guide rail 1a of the tower 1.
And a lifting frame 4 connected to the driving frame 3 so as to move up and down by engaging a pinion driven by a driving machine 6 mounted on the tower 1b with the rack 1b attached to the steel tower 1. And a cage 5 attached to the.

On the front surface of the top of the steel tower 1, a top connecting stand 10 is provided.
However, a pinion driven by a driving machine 12 mounted therein is engaged with a rack 1b attached to the steel tower 1 so as to be movable up and down. A pair of left and right sheaves 9, 9 for suspending the counterweight wire ropes 8, 8 are attached to the top joint 10 so as to be located on both sides of the steel tower 1. The counterweights 7, 7 are guided so as to be able to move up and down along the left and right side surfaces of the steel tower 1,
The tip ends of the wire ropes 8 hung on the hanging sheaves 9 are connected to the lifting frame 4 of the carrier 2, and the extra ends are wound around the extra winding drum 7a incorporated in the counterweight 7, The carrier 2 and the counterweight 7 are balanced. It should be noted that the carrier 2 is moved up to the top joint 10 so that a worker can transfer from the ceiling of the cage.

A steel tower assembling / disassembling apparatus 20 according to this embodiment.
Is at the front of the frame 10 ′ of the top joint 10 and on the upper surface of the landing 11 at an interval wider than the width dimension of the tower 1 and in the direction orthogonal to the tower 1. Guide rails 13, 13 laid in parallel with a U-shaped cross section
21. A movable table 21 movably provided by being guided by the groove portion of the
And two arms 24, 24 arranged so as to project from the moving table 21 in parallel to both sides of the steel tower 1, and a steel tower supporting piece 25a detachably attached to each tip of the arms 24. It is composed of a steel tower holding means 25.

The movable table 21 in the steel tower assembling / disassembling apparatus 20 is movable by engaging the wheels 22 with the two guide rails 13 and 13 laid on the landing 11 as illustrated in FIG. An arm 24 is provided, which is arranged and stands up on both sides so that an upper portion of the frame 23 is bent horizontally by a required length toward the front (the frame 10 'side of the stand) and protrudes. Each of these arms 24 is provided with a plurality of (four in the specific example) support piece insertion holes 26 which are orthogonal to each other at predetermined intervals. An iron tower support piece 25a is removably inserted into each of the support piece insertion holes 26. The steel tower supporting means 25 is constituted by the steel tower supporting piece 25a and the supporting piece inserting hole 26 of the arm 24. The steel tower support piece 25a and the support piece insertion hole 26 are formed in a rectangular cross section so that the steel tower support piece 25a can be easily inserted into and removed from the support piece insertion hole 26 by a manual operation without load.

The moving table 21 is provided with the guide rail 1
When the steel tower holding means 25 is located right next to the installation position of the steel tower 1 when it is most advanced along 3, 13, the steel tower segment 1A held by the steel tower holding means 25 is located away from the installation position of the steel tower when it is finally retracted. Is related to. The guide rail 1 of this moving table 21
3 and 13 are made of grooved steel and are used for the wheels 22 of the moving base 21.
Is prevented from rising, and stoppers 13a and 13b are provided at the most advanced position and the most retracted position to facilitate positioning. In addition, the landing 11 of the top joint stand 10 is provided in the laying range of the guide rail 13 so that the moving table 21 can be easily moved forward and backward, and is provided with the trap 15 so that the carrier 2 can be transferred. (See Figure 3)

A drive unit 12 for driving a pinion 14 that meshes with the rack 1b of the steel tower 1 and a speed detection type governor-type fall prevention device 16 in case of an accident are attached to a frame 10 'of the top frame 10. And, the top connecting table 10 is raised to a certain height from the top end of the tower 1 and its frame 10 '
When is ejected, a photoelectric lock-out prevention limit switch 40 is attached as an automatic stop mechanism in order to prevent further escape by preventing further movement. The prevention switch limit switch 40 is provided so as to face a continuous member (for example, the rack 1b) of the steel tower 1 so as to be detected. Therefore, a limit switch other than the photoelectric type can be used as the retaining prevention limit switch 40.

In the steel tower assembling / disassembling apparatus 20 according to the present embodiment thus configured, the top connecting table 10 mounted on the tower connecting / disassembling apparatus 20 is connected to a power source so as to be operated independently of the carrier 2. For example, in order to perform an assembly operation in which the steel tower 1 is replenished, the carrier 2 is lowered to the lowest position, and the counterweight suspension wire rope 8 is temporarily removed. After that, the steel tower segment 1A for replenishing by a wrecker is hung on the front side of the moving table 21 which has been lowered to the bottom and the top moving table 10 is finally retracted.
With a certain amount of air from the floor of the landing 11,
The steel tower support pieces 25a are inserted into the support piece insertion holes 26 of the arm 24 of the movable table 21 respectively.
Is inserted into the lower side of the corresponding lateral member 1c on the side surface of the steel tower segment 1A located between both arms 24, 24, and the steel tower segment 1A that is being suspended is lowered, thereby Steel tower segment 1
Accept A while keeping it upright.

Thereafter, as shown in FIG. 6, the top joint 10 is raised to the top of the steel tower 1 by the operation of the driving machine 12, and the lower end of the steel tower segment 1A supported by the steel tower holding means 25 is the existing steel tower 1. When it reaches a position slightly above the top surface of the, the operation is stopped. It should be noted that an operator is boarded on the top frame 10 and is operated to move up and down. In addition, this top joint stand 10 rises to the top of the steel tower 1,
Even if the frame 10 'rises excessively, the frame 10' that constitutes the top frame is equipped with a retaining prevention limit switch 40, so that the frame 10 'should not come out of the top end of the tower 1. And there is no need for safety.

Thus, the movable table 21 is attached to the guide rail 1
Steel tower holding means 2 by advancing along 3, 13
It is possible to move the steel tower segment 1A held by 5 onto the existing steel tower 1. Therefore, when the connection position of the steel tower segment 1A held by the steel tower holding means 25 and the existing steel tower 1 is adjusted, the steel tower segment 1A is stacked on the top surface of the existing steel tower 1 so that the top connecting table is formed. Lower 10

After the top joint 10 has reached the required position in this manner, the joint support pieces 18, 18 (previously provided on the top joint 10 so as not to come in contact with the steel tower 1 when moving up and down). Is protruded from the front surface of the steel tower 1 and is engaged with and supported by a lateral member provided on the front surface of the steel tower 1. By doing so, the top-portion 10 is supported by the column-supporting lateral members to support its own weight, and is displaced in the front-rear direction by the guide rollers 17 engaged with the guide rails 1a. Is held
It is fixed stably. Therefore, this top frame 10
Can secure safety without causing accidents such as dropping the steel tower during work.

When the steel tower segment 1A is stacked on the steel tower to which it is added, the steel tower supporting piece 25a holding the steel tower segment 1A is separated from the lower surface of the lateral side member 1c of the steel tower segment 1A and comes out of the supporting state. Therefore, if all the steel tower supporting pieces 25a of the steel tower holding means 25 are pulled out from the supporting piece insertion holes 26, the relationship with the steel tower 1 is released, and the movable table 21 can be retracted. Therefore, after the steel tower segment 1A to be replenished is bolted to the existing steel tower 1, the connecting stand supporting pieces 18, 1
8 is retracted, and the top joint 21 is moved to the next tower segment 1A.
Can be lowered to the loading position, and thereafter the above procedure can be repeated to add the steel tower 1.

The above description has been given of the work for adding the steel tower 1. When dismantling the steel tower 1, first, the carrier 2 is lowered to the ground floor and removed, and then the power source is connected to the drive unit of the top joint stand 10 (normal operation). At this time, the power source to the drive unit of the top connecting table 10 is not connected) and the connecting table supporting pieces 18, 18 are retracted, and the holding of the connecting table supporting pieces 18, 18 to the steel tower 1 is released. Then, the top weight stand 10 is once lowered to remove the counterweight suspension wire rope 8.

Next, the driving machine 12 of the top joint 10 is operated to rise to the top of the tower 1, the top joint 10 is stopped at a position where one top tower segment can be removed, and the moving table 21 is moved to the tower. Advance to the holding position. After that, the support piece insertion holes 26 of both arms 24, 24 of the movable table 21 are inserted.
The steel tower support piece 25a is inserted into and inserted into the lateral members 1c on both side surfaces of the steel tower segment 1A to be removed. At the time of inserting the steel tower supporting piece 25a, the stop position of the top connecting table 10 is determined so that the steel tower supporting piece 25a does not come into contact with the lateral member 1c of the steel tower segment 1A and is located slightly below.

On both the left and right sides of the steel tower 1, steel tower supporting pieces 2 are respectively provided.
When the 5a is inserted, the connecting bolt of the steel tower 1 is removed, and then the top connection table 10 is slightly raised to bring each steel tower support piece 25a into contact with the lower side of the lateral members 1c on both sides of the steel tower, and the existing steel tower 1 Lift the tower segment 1A from. Therefore, when the movable table 21 is retracted in this state, the steel tower holding means 25 attached to the movable table 21 moves the steel tower segment 1A to the front side from the steel tower installation position and lifts the steel tower segment 1A. 12 is driven and lowered to the above-ground portion as it is, and the steel tower segment 1A carried down on the above-ground portion is hung by a truck crane or the like to release the holding by the steel tower holding means 25 (the steel tower supporting piece 25a is removed). Remove the tower segment 1A from above. After that, by repeating this operation, the steel tower 1 can be sequentially disassembled and removed.

As described above, the detaching operation of the steel tower segment 1A from the existing steel tower is performed through the plurality of steel tower supporting pieces 25a on the arm 24 of the moving table 21 in the steel tower assembling / disassembling apparatus 20 on the top connecting stand 10. Since the steel tower segment 1A is held by being lifted upright, the moving base 21 can be set by the stopper 13a so that the forward position of the moving base 21 is directly above the existing steel tower 1.
It can be easily positioned and operated by the forward / backward movement and the fine vertical movement at the top of the top tower 10 of the tower. Moreover, since the top joint 10 is provided with the landing 11 facing the front and both sides of the steel tower 1, bolting and disassembling work of the steel tower 1 can be easily performed.

Next, a concrete example of another embodiment of the steel tower assembling / disassembling apparatus according to the present invention will be described with reference to FIGS. 7 and 8.

As shown by these figures, the tower assembling / disassembling apparatus 20A in this embodiment is mounted on the above-mentioned top connection stand 10 and, as mentioned above, the required section tower and its front part are connected. A movable table 21A that can move between the two, and left and right frames 23A, 23A that stand upright on the movable table 21A.
Arm 24 attached to the side facing the steel tower and movable up and down
Steel tower holding means 30 attached to A and this steel tower holding means 3
A mechanism for rotatably supporting 0 is provided. The same parts as those in the above-described embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

The movable table 21A is positioned by a stopper (not shown) so that the steel tower segment 1A supported by the steel tower holding means 30 attached to the arm 24A at the most advanced position matches the existing steel tower installation position. The overall dimensions of the steel tower segment 1A to be supported are formed so that the steel tower segment 1A to be supported can be inverted when it finally moves back.

The arm 24A attached to the frame 23A of the moving base 21A has its base end engaged with the support seat 27 on the steel tower side of the frame 23A so as to be vertically slidable, and the base and the moving base 21A. It is connected movably up and down by a linear drive device 28 (for example, a hydraulic cylinder) provided between the upper surface and the upper surface. Then, in the middle of the upper part of these arms 24A, the bearings 3 are formed by aligning the axes on the same left and right axes.
1 is attached respectively. A support shaft 32 having a clamp 33 for gripping and fixing the lateral member 1c or the like of the steel tower 1 at the tip of these bearings 31 is provided symmetrically and freely rotatable and rotatable in the axial direction. It should be noted that although not shown, instead of the clamp 33 at the end of the support shaft 32,
Support shaft 3 by bolting the steel tower lateral member 1c etc.
It is also possible to use a support member composed of a face plate that can be fixed to 2 and a pressing plate.

Further, in addition to the steel tower holding means 30 composed of the support shaft 32 provided on the arm 24A and the clamp 33 (or fixedly held by sandwiching the face plate and the pressing plate), the arm 24A is provided with the movable table 21A. It is advisable to additionally provide a fixing means (not shown) such as a metal plate for temporarily fixing the steel tower segment 1A supported during movement so as not to rotate.

Steel tower assembling / disassembling apparatus 2 thus constructed
For example, when dismantling the steel tower 1, 0A is operated by operating the top joint stand 10 alone to the top of the tower, and is raised, and is fixed to the steel tower 1 at predetermined positions by the joint stand support pieces 18 attached to the top joint stand 10. After that, the movable table 21A is moved forward to the tower side. After that, the support shaft 32 of the steel tower holding means 30 attached to both arms 24A is advanced to the steel tower side, and the clamp 33 at the tip grasps and fixes the steel tower lateral member 1c and the like. The position of the clamp 33 when gripping the lateral member 1c of the steel tower 1 is adjusted by moving the arm 24A up and down by the drive unit 28.

After the steel tower segment 1A to be disassembled is held by the steel tower holding means 30, the connected bolts are removed. After that, the drive device 28 is operated to lift the steel tower segment 1A, and the movable table 21A is retracted after being separated from the existing steel tower 1, and when it is retracted to a position where it does not contact the steel tower 1, the drive device 28 is operated. The steel tower segment 1A that is being held is lowered to a stable posture, and then the top bridge 10 is lowered to the ground portion as it is. In the above-ground portion, when the movable table 21A is moved to the last retracted position, as shown in FIG. 7, the held steel tower segment 1A is rotationally displaced from the standing state to the horizontal state with the support shaft 32 as the fulcrum. By doing this, in the above-ground portion, for example, the fork of a forklift truck is supported by being inserted into the frame of the steel tower segment 1A,
Steel tower lateral member 1c by the clamp 33 of the steel tower holding means 30
When the holding of the above is released, it can be carried out from the top joint stand 10 to the outside by a forklift as it is.

After that, the top joint 10 can be raised to the top of the steel tower, and the steel tower segment 1A can be sequentially disassembled according to the above-mentioned procedure and carried out to the ground. As for the assembly of the steel tower 1, the steel tower segment 1 is assembled in the reverse order of the dismantling operation described above.
It can be assembled by carrying A and sequentially adding it to the existing steel tower 1.

According to this example, the arm 24A attached to the movable table 21A and the steel tower holding means 30 mounted on the top connection table 10 have a function of being moved up and down by the linear drive device 28. Therefore, since the steel tower segment 1A can be assembled and disassembled at the top of the steel tower 1 without finely moving the top joint 10 up and down, there is an advantage that work in high places can be performed safely.

The steel tower assembling / disassembling apparatus mounted on the top connection table in each of the above-mentioned embodiments does not cause any problem when mounted in a normal elevator operation.

[0040]

According to the present invention as described above,
A steel tower segment supporting device that can be assembled or disassembled by holding the steel tower segments on both sides on the top joint stand that has the function of allowing self-propelling and moving up and down with respect to the tower installation position and moving back and forth horizontally. By installing the steel tower segment in a stable state and connecting / disconnecting it to / from the existing steel tower, the connection / disassembly work of the steel tower can be performed safely and efficiently, and the steel tower of the elevator can be operated by its own function. Assembling and dismantling became easier.

Further, if the arm for holding the steel tower segment can be moved up and down by the linear motion drive device, the top bridge is kept at a predetermined position when the steel tower segment is added to or removed from the top of the existing steel tower. It is possible to work while vertically adjusting only the steel tower segment to be held, and it is possible to more safely handle heavy objects (steel tower segment) at high places, and it is possible to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a diagram showing a specific example of a construction elevator in which a steel tower assembling / disassembling apparatus according to the present invention is used,
(a) is a front view and (b) is a right side view.

FIG. 2 is a front view showing a specific example of a steel tower assembling / disassembling apparatus for a construction elevator according to the present invention.

FIG. 3 is a side view seen from the right side of FIG.

FIG. 4 is a plan view of FIG.

FIG. 5 is an overall perspective view of a specific example of a steel tower assembling / disassembling apparatus.

FIG. 6 is a schematic diagram showing a procedure for assembling a steel tower segment.

FIG. 7 is a side view of another embodiment of the steel tower assembling / disassembling apparatus according to the present invention, in which the manner of operating the steel tower segment is also shown.

FIG. 8 is a view of the steel tower assembling / disassembling apparatus shown in FIG. 7 as viewed from the right side.

[Explanation of symbols]

1 steel tower 1a steel tower guide rail 1b rack 1c steel tower lateral member 1A steel tower segment 2 carrier 6 driver 7 counterweight 8 counterweight wire rope 9 suspension sheave 10 top joint 10 'top joint frame 11 landing 12 Top drive unit 13 Guide rails 13a, 13b Stopper 20 Steel tower assembly / disassembly device 21,21A Mobile stand 22 Wheels 23, 23A Frame 24, 24A Arm 25, 30 Steel tower holding means 25a Steel tower support piece (support) 26) Support piece insertion hole 28 Drive device 31 Bearing 32 Support shaft 33 Clamp (clamp mechanism) 40 Preventive prevention limit switch (automatic stop mechanism)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiya Noji 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yoshifumi Kimura 1-7-20 Hanazono, Nishinari-ku, Osaka Stocks Within Koshihara Company (72) Inventor Kazuhiro Inoue 7-20 Hanazono Minami, Nishinari-ku, Osaka

Claims (7)

[Claims] 1. In an interlocking drive type construction elevator, a steel tower holding device in which a pair of arms having a mechanism capable of supporting the steel tower on both sides is erected is mounted on a top joint stand provided at the top of the steel tower, This steel tower holding device is capable of advancing and retracting from the front side of the steel tower to the steel tower installation position, and the top joint stand has a function of being vertically driven along the steel tower installed by an attached drive machine. Elevator tower assembly and dismantling equipment for construction. 2. A pair of left and right arms are arranged in the steel tower holding device on a moving table installed on the top connection table at intervals wider than a width dimension of a steel tower of the elevator, and both arms are provided. In the upper part, there are respectively provided steel tower holding means capable of advancing and retracting with respect to the side parts of the steel tower, and the steel tower segment to be operated by the steel tower holding means attached to the arm at the most advanced position of the movable table. Can correspond to a steel tower installation position, and the top connection table is provided with a guide of a movable table that can move the steel tower holding means with the arm to a position outside the steel tower installation position when the movable table retracts. The steel tower assembling / disassembling device for the construction elevator described in 1. 3. The steel tower holding means in the steel tower holding device comprises a support piece insertion hole provided in an upper portion of the arm in a direction orthogonal to a side surface of the steel tower, and a side surface of the steel tower penetrating the support piece insertion hole. 3. A steel tower assembling / disassembling device for a construction elevator according to claim 1 or 2, further comprising a support piece that is inserted into the inside of the steel tower and is engaged with a lower surface of a lateral member constituting the steel tower to hold the steel tower. 4. The steel tower holding means in the steel tower holding device is a clamp mechanism which is arranged at an upper portion of the arm toward a side surface of the steel tower and holds a constituent member of the steel tower which can be moved back and forth. The steel tower assembling and disassembling device for the construction elevator described in. 5. The steel tower holding device is provided with a pair of left and right pillars standing upright on a moving table installed on the top connection table at intervals wider than a width dimension of the steel tower of the elevator. Each of these arms is provided with an arm that is vertically moved by a required stroke so as to project laterally of the steel tower, and an intermediate portion of each arm holds a steel tower that can move forward and backward with respect to the side of the steel tower. The mechanism is supported by bearings with the axes of rotation matched and is provided so as to be able to move forward and backward with respect to the side portion of the steel tower, and the movable table tries to be operated by the steel tower holding mechanism with the arm at the most advanced position. The steel tower segment can correspond to the steel tower installation position, and the steel tower holding mechanism equipped with the arm can rotate the steel tower segment so that the direction can be changed when the movable table is retracted to the top connection table. The steel tower assembling / disassembling device for a construction elevator according to claim 1, wherein a guide of a moving table is provided so as to be able to move to the stand. 6. The construction elevator according to claim 5, wherein the steel tower holding mechanism is provided with a holding means capable of holding and holding a key point of a constituent member of a steel tower segment held at the tip of the rotary support shaft. Steel tower assembly and disassembly equipment. 7. An automatic stop mechanism for stopping the ascending when the steel tower holding device holds a steel tower segment held by the steel tower holding means provided with the arm to the installed steel tower or reaches a position where an operation for removing the steel tower is carried out. The steel tower assembling / disassembling apparatus for a construction elevator according to claim 1, 2 or 5, which is provided.