JP2001020537A - Support device for steel tower of hoisting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device for the steel tower of a hoisting device that can be attached to the vertical member of the steel tower at a certain position and support the steel tower without being made structurally complex. SOLUTION: This support device for a steel tower 1 whose vertical member 2 is constructed of a steel pipe has at least two mounting units A each one of which comprises a pair of gripping members 11 for sandwiching the vertical member 2 over a great width and holding its peripheral surface, and a mounting part piece 15 mounted on one side of each gripping member 11 and connected to a support (structure) B in the direction crossing the vertical member 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tower support device for a lifting device used when installing a lift, an elevator, a crane, or the like mainly used in a construction site.

[0002]

2. Description of the Related Art A steel tower of a lifting device such as a lift or an elevator generally used at a construction site or the like is usually supported by a support bracket having a base end fixed to a building frame or a frame work scaffold under construction. It is erected. For example, Japanese Patent Publication No. 55-22063 or Japanese Patent Publication No. 49-23212 discloses a structure for mounting the support fitting so as to be connected to a vertical member or a horizontal member on a building side of a steel tower installed. ing.

[0003] The support bracket is the former (Japanese Utility Model No. 55-55)
No. 22063) discloses a structure in which a supporting bracket is attached to and supported by a vertical member of a steel tower formed by framed steel molds, and the latter (disclosed in Japanese Patent Publication No. 49-23412). In this case, there is described a structure in which a supporting member is attached to and supported by a horizontal member of a steel tower formed by framed steel molds.

[0004] In the case of a steel tower constructed using a steel pipe material, the vertical member of the steel tower in the prior art is made of a steel pipe material, and as shown in FIGS. Of the vertical member (steel pipe material) 51 is fastened by a combination of a U-shaped bolt 56 and a paddle 57.

[0005]

However, in a system in which a conventional U-shaped bolt 56 is used as the support bracket 55 of the steel tower 50 composed of the steel pipe material as the vertical member 51, the support bracket 55 is provided at the mounting portion. The strength of attachment of the support member 55 to the vertical member 51 by the U-shaped bolt 56 is very small, and the vertical width of the vertical member 51 on the side of the tower 50 at the fastening portion is very small. This causes the holding force to act intensively, which causes an undesirable problem.

For this purpose, as shown in FIGS. 6 (a) and 6 (b), an appropriate space is provided vertically above and below the steel tower 50 with respect to a support member 58 of a support having a base end supported on the construction B side. The vertical support members 59 are arranged such that the binding portions for the vertical members 51 by the U-shaped bolts 56 are arranged at a plurality of locations.
Is used to prevent a concentrated load from acting, and as a result, many parts are required. In particular, the support bracket (support member 5) on the building B side
8) Since the mounting position cannot always be connected and supported on the steel tower 50 side under the same conditions because of the construction B side, the construction B
It is necessary to adjust the tying part on the tower side in the vertical direction in accordance with the supporting member 58 of the support fitting attached and supported on the side, and in order to connect and arrange a plurality of tying parts with one supporting member 58, the adjustment A vertical support member 59 is required, and there is a problem that the construction cost increases.

[0007] Further, in the case where a support fitting is mounted by sandwiching a steel pipe material on the steel tower side, when a large horizontal force is applied depending on the supporting means, the vertical member (steel pipe material) is deformed, so that it is strongly connected. This causes a problem that the vertical member is weakened in the portion.

The present invention has been made to solve the above-mentioned problems, and has been made without complicating the structure.
It is an object of the present invention to provide a tower supporting device of a lifting device that can be attached to a tower vertical member at an arbitrary position and can support the tower.

[0009]

Means for Solving the Problems and Action / Effect In order to achieve such an object, a steel tower supporting device of a lifting device according to the present invention is a steel tower supporting device in which a vertical member is made of a steel pipe material. A pair of gripping members for holding the peripheral surface by sandwiching the vertical member with a wide width, and an attaching portion for a supporting member attached to one side surface of the gripping member and connected to the support body in a direction intersecting the vertical member. It is characterized in that it has one set of mounting units with one piece and at least two sets of such mounting units.

The tower supporting device of the lifting apparatus according to the present invention having the above-described structure is provided so that a vertical member of a supporting tower is sandwiched between a pair of wide holding members divided at its supporting portion. While holding the surface, the mounting piece attached to one side of the gripping member can be connected to and supported on the building side by a support member of a required size. Therefore, according to the present invention, a holding member and a mounting piece attached thereto are prepared in advance as a set, and the end of the supporting member corresponding to the condition on the support side such as a structure is connected to the mounting piece. By doing so, a support device corresponding to the support conditions can be obtained. Moreover,
Since the gripping member is configured to hold the vertical member of the tower with a relatively wide width, it can be held at any position where the vertical member can be gripped, and the concentration force acts locally. The effect is that the tower can be supported without the need.

Further, the gripping member is formed with a holding portion of a vertical member having a required thickness, which is partially offset from the center to one side, and the holding portion substantially matches the diameter of the vertical member just held. It is preferable that the structure has an inner diameter, is divided into two parts in the front and rear, and is fastened with a bolt through a fastening hole penetrating in the front and rear direction at a position appropriately separated from the holding part. By doing so, the steel pipe material, which is a vertical member of the tower, is held by the holding portion without being pinched by the bisected holding member, and the tower is supported by connecting to the supporting member having the base end attached to the building side. Can be. Therefore, since the holding portion between the vertical member and the holding member holds the vertical member in a fitted state at a position where the vertical member of the tower is supported, the vertical member is held without being pinched, and a horizontal force acts on the tower. Even if it does not deform. Further, the vertical member is held with a wider length than that of the conventional U-bolt, and the external force is not locally concentrated on the vertical member, so that there is no obstacle. It is.

[0012] Further, it is preferable that a bolt detent seat is engraved on an outer surface side of a fastening bolt hole on a gripping piece of the gripping member opposite to the mounting piece piece fixing side. In this way, when mounting the steel tower vertical member by the holding member, when the two-parted holding member is fastened by bolts, it may be tightened with a tool only on the nut side, so that it can be operated with one hand and can be performed safely. There is an advantage. In addition, if the rotation stop seat of the bolt is engraved and provided, the operation of fitting the fastening bolt into the bolt hole can be performed easily and reliably, which is more effective.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a tower supporting device of a lifting apparatus according to the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a tower supporting apparatus according to an embodiment of the present invention, and FIG. 2 is a side view of FIG.
3 is an enlarged plan view of a main part, FIG. 4 is a side view showing a part of FIG. 3 in cross section, and FIG. 5 is a view taken along line XX of FIG.

The tower supporting apparatus 10 of this embodiment supports a tower provided with a guide rail of a transporter in a construction elevator, and as shown in the drawings,
An attachment unit A is constituted by a holding member 11 for holding a steel pipe material used as the vertical member 2 of the steel tower 1 and an attachment piece 15 for attaching the holding member 11 to the building side. Of the four vertical members constituting the tower 1, two sets are arranged symmetrically so as to be attached to the two vertical members 2 and 2 on the support side, respectively, and these mounting units A are connected to the building B. And a supporting member 17.

Since the mounting unit A is bilaterally symmetric, one of them will be described in detail below.

The gripping member 11 is formed in a rectangular cube having an outer shape of an appropriate height and a holding portion 1 for gripping the vertical member (steel pipe material) 2 by shifting the center of the rectangular shape in plan view to one side.
2 is cut out in the height direction in a column shape with a part cut away at the end, and is divided into two in the front-rear direction by a longitudinal vertical surface passing through the center of the holding portion 12. Each of the divided gripping pieces 11a and 11b is bolted at a position appropriately distant from the holding part 12 so that the holding part can hold the vertical member 2.

The holding portion 12 is dimensioned to substantially match the outer diameter of the vertical member (steel pipe material) 2 which just holds its inner diameter D, so that a force for strongly pinching when holding the vertical member 2 does not act. To be. Also, one gripper piece 1
1a is welded to the front surface of the mounting piece 15 on its back surface to be integrally formed, and the other gripping piece 11b is inserted into a bolt hole 14 that penetrates together with the gripping piece 11a integrated with the mounting piece 15. It can be fastened and fixed with a fastening bolt 20.

In the portion where the bolt hole 14 is provided, the outer surface of the other gripping piece 11b is slightly larger than the dimension between the two sides of the head 20a of the fastening bolt 20, as shown in FIG. A bolt detent seat 14a engraved with a wide dimension is formed so that a tightening operation at the time of bolt fastening can be easily performed.

The mounting piece 15 is an angle-shaped member, and one gripping piece 11a is integrally attached to the front surface as described above, and the connection face 15a faces downward (or faces upward in use). Support member 17 connected to the structure B
A plurality of bolt holes 16 are provided so that the ends of the bolt holes 16 are attached. Note that reference numeral 15 'in the figure is a reinforcing rib.

The tower supporting device 10 thus constructed can be used in a place where the tower 1 of the intended lifting apparatus is to be erected.
A support member 17 (a flat plate in this example) having a required length corresponding to the distance between the tower 1 and the support mounting portion of the building B is prepared, and the tip of the support member 17 is attached to the mounting portion piece 1 of the mounting unit A.
5 to the connection surface 15a with bolts, and the mounting unit A
The gripping member 11 is divided into two by removing the fastening bolt 20.
Holding part 12 of gripping piece 11a on the side to be attached to attachment piece 15
To the required position of the vertical member 2 of the steel tower 1, and the holding portion 12 of the other removed gripping piece 11 b is attached to the gripping piece 1.
1a, and combined with the fastening bolt 20
The head 20a is received in the bolt detent seat 14a,
The fastening bolt 20 inserted in the bolt hole 14 is
Is tightened with a nut 21 via a washer outside the.

In this manner, both gripping pieces 11a, 1
1b are combined by fastening bolts 20 until the opposing surfaces of the gripping pieces 11a, 11b contact each other.
The holding part 12 is closed, and the holding part 12 holds the vertical member 2 of the tower. In this state, since the inner diameter D of the holding portion 12 of the gripping member 11 substantially matches the outer diameter of the vertical member 2 (steel pipe material), the tightening force of the fastening bolt 20 does not excessively act, and the position shifts. Is held in a state that does not occur. Therefore, the support member 17
The bolt 23 is fastened by aligning the rear end portion with a mounting bolt hole provided at a predetermined mounting position of the structure B in advance. In this way, by using the tower supporting device 10 and connecting it to the building B at a plurality of locations at required intervals according to the installation height of the tower 1, the tower 1 can be stably supported.

When the tower 1 is supported by the tower supporting device 10 in this manner, the vertical member 2 of the tower 1 is held by the holding portion 12 of the gripping member 11 in a relatively wide range, and the vertical member in the holding portion 12 is held. Since the peripheral surface portion 2 is held substantially equally over the entire circumference, even if horizontal force acts on the support portion, the steel tube material (vertical member 2) is not locally deformed and can be safely held. is there. Also,
At the time of holding operation of the vertical member 2 by the gripping member 11, when the fastening operation by the fastening bolt 20 is performed by combining the gripping pieces 11a and 11b divided into two, the fastening bolt 20 is a bolt with a head 20a engraved. Since it is fitted and fixed and held in the detent seat 14a, the inserted state of the fastening bolt 20 is first maintained, and it is good to rotate the nut 21 only with a tool and tighten it. In this case, safety can be improved.

In the above, the supporting device of the steel tower provided with the guide rail for carrying the elevator of the construction elevator has been described.
It can also be used in crane towers. Further, as the member connecting the mounting unit and the building (support), an arbitrary shape can be used according to the situation of the steel tower installation site.

The construct B in this example corresponds to the support in the present invention.

[Brief description of the drawings]

FIG. 1 is a plan view of a tower supporting device according to one embodiment of the present invention.

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

FIG. 3 is an enlarged plan view of a main part.

FIG. 4 is a side view showing a part of FIG. 3 in section.

FIG. 5 is an XX view of FIG. 3;

FIGS. 6A and 6B are views showing an example of a conventional tower support, wherein FIG. 6A is a plan view and FIG. 6B is a side view.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tower of lifting device 2 vertical member of tower 10 tower support device 11 gripping member 11a one gripping piece 11b other gripping piece 12 holding part 14 bolt hole 14a bolt detent seat 15 mounting part piece 17 support member 20 fastening Bolt 20a Bolt head A Mounting unit B Construction (support)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tamotsu Nojo 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Masatoshi Tsumaka Hanazono Minamiichi Nishinari-ku, Osaka No. 7-20, Koshihara Co., Ltd. (72) Inventor Mitsunori Kawano 1-7-20, Hanazono Minami, Nishinari-ku, Osaka F-term (reference) 3F205 AA03 BA01 JA10 3F301 DD02

Claims (3)

[Claims] 1. A supporting device for a steel tower in which a vertical member is made of a steel pipe material, comprising: a pair of gripping members that hold the peripheral surface by sandwiching the vertical member with a wide width, and fixed to one side surface of the gripping member. And a mounting member for a supporting member connected to the support member in a direction intersecting with the vertical member. The mounting unit has one mounting unit, and at least two such mounting units are provided. Tower support equipment. The pair of gripping members have a required thickness, and a holding portion of a vertical member which is partially cut away by being shifted to one side from the center is formed, and the holding portion has a diameter substantially equal to the diameter of the vertical member to be held. It has a matching inside diameter and is divided into two parts along the vertical surface passing through the center of the holding part, and is fastened with bolts through bolt holes that penetrate in the front-rear direction at a position appropriately separated from the holding part. A steel tower support device for the lifting device according to claim 1. 3. The lifting device according to claim 2, wherein a bolt detent seat is engraved on an outer surface side of a bolt hole for fastening on a gripping piece of the gripping member opposite to a mounting piece piece fixing side. Tower support device for the descending device.