JPH11246179A - Hoist support device of hoist lifter for construction site - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure, and reliably and easily install a support boom on a square column by arranging the hoist suspending part on a support column body rotatably arranged on the square column, installing/removing a hoist by turning a support device to the square column side, and winding/unwinding a lifting wire by turning it to the anti-square column side. SOLUTION: The hoist suspending part 102 is arranged on a support column body 101 loosely fitted to a square column 3 so that a hoist 11 is suspended by a lifting lever 102d of the suspending part 102. The suspending part 102 is approached to or separated from the square column 3, the hoist 11 is installed/removed/repaired when the suspending part 102 exists on the square column side A, and an elevating lifter is lifted by the hoist 11 when the suspending part 102 exists on the anti-square column side A'. At this time, a support device 10 of the hoist is rotatably arranged on the square column 3 to follow a movement of the elevating lifter. Therefore, a twist of the hoist 11 is avoided to reliably and easily install/remove the hoist.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hoist support device for a hoist lifter for a construction site.

[0002]

2. Description of the Related Art Recently, simple lifters such as a hoist lifter and a pole lifter using a scaffold are useful as a simple lifting device at a construction site. In the case of a hoist lifter, a hoist is suspended from a prism using a support boom. If the lifter of the hoist lifter has a wide bed, the support boom is naturally used. It is necessary to make the other bent part of the length long. In this case, the support boom is not provided so as to be pivotable, and it is difficult to attach and remove the hoist to and from the support boom. However, there was no suitable boom for this type of hoist lifter.

[0003] Although not a hoist lifter, the documents in which the supporting boom or the supporting arm pivots include: (1) a winch of Japanese Utility Model Laid-Open No. 6-14187, and (2) a heavy-weight suspension device of Japanese Patent Application Laid-Open No. 5-39200. (3) There is an upper switching mechanism of the vertical transfer device disclosed in Japanese Patent Laid-Open No. 5-105368.

[0004]

The technique disclosed in the above-mentioned document is configured such that a support boom or a support arm is pivotally connected to a pole or a column via a pivot member. Therefore,
There are problems that mounting and pivoting of the support boom and the like are complicated and that many parts are required. In particular, there are problems such as an increase in the number of parts, an increase in cost and an increase in work complexity.

[0005]

SUMMARY OF THE INVENTION The present invention simplifies the structure of the hoist support device, or secures the support boom to the prism.
It is an object of the present invention to be able to easily mount and remove the hoist securely and easily by utilizing the turning of the hoist support device.

[0006] Claim 1 is a scaffold provided at a construction site,
A prism provided with a number of connectors on a pole such as a ladder, a lifter provided on the prism so as to be able to ascend and descend via a support frame loosely fitted to the prism, and an elevating lifter A hoist lifter provided in a hoist lifter composed of a hoist that governs the hoist, the hoist support device includes a support column that is rotatably provided on a prism, and a hoist suspension portion that is provided on the support column. The hoist support device is attached to and detached from the hoist by turning the hoist support device to the prism side, and the lifting wire is wound and unwound by the turning operation to the opposite prism side. It is a hoist support device for hoist lifters for construction sites.

Another object of the present invention is to reliably operate the hoist support device and avoid a failure.

A hoist for a hoist lifter for a construction site, wherein a load applied to the hoist of the hoist support device is detected, and when a load exceeding a certain level is applied, a switch is operated to stop the rotation of the hoist. It is a supporting device.

Further, in the present invention, the connection between the support boom and the prism is strengthened, and the reliability and stability of the hoist suspension are improved.

According to a third aspect of the present invention, there is provided a hoist lifter for a hoist lifter for a construction site, wherein the support column of the hoist support apparatus is configured to be loosely fitted into a prism.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the hoist supporting apparatus of the present invention, its supporting column is fixedly inserted into or attached to a prism. In the case of insertion, a bush is used, and in the case of attachment, a clamp is used, and it is pivotably (rotatably) attached. With this mounting, the hoist support device is provided so as to be pivotable on the prism, so that it can be pulled by a string or other connecting body when necessary.
Alternatively, the other bent portion is pulled toward the scaffold side (at hand) by an automatic turning means (not shown), and a hoist is attached or removed, repaired, stored, and the like. Therefore, there is a feature that the work such as the mounting of the hoist can be performed reliably and quickly with a sense of security. In addition, since the hoist support device has a configuration in which the support column is loosely fitted to the prism, free rotation is guaranteed, and a large amount of load applied to the hoist support device can be supported by this prism. The structure is strong and excellent in stability. In addition, it consisted of a support column and a hoist suspension,
Since it has a simple configuration, it has features that can contribute to cost reduction, improvement of workability, facilitation of handling, and the like.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 1 denotes a pole such as a scaffold, a ladder or the like erected on a construction site, other sites, other places, factories, and the like. Is done. The base 2a of the connector 2 is formed as a clamped portion 21 having a split shape, a split shape, or the like.
The poles 1 and 21 are detachably provided on the pole 1 using fasteners (not shown) such as bolts and nuts. Clamp part 21,
21 and the connecting body 2 may have any structure of an integral structure and a detachable structure. On the other hand, the bent portion 2b of the connector 2 is inserted into a hole 31a provided in the mounting portion 31 of the prism 3. In this operation, the prism 3 is attached to the pole 1 via a number of connecting bodies 2.
The hole 31a has a hexagonal shape, a square shape, an irregular shape, or the like, and the bent portion 2b having substantially the same shape is formed in the hole 31a.
Insert The prisms 3 can also be stably provided together by inserting the bent portions 2b into the pair of holes 31a so as to face each other.

In the drawing, reference numeral 4 denotes a lifting lifter. The lifting lifter 4 includes a support frame 5 having a plurality of trochanters (not shown) loosely fitted on the prism 3 and a rotating section mounted on the support frame 5. A back portion 7 is provided rotatably or detachably via a base 6, and a load receiving portion 8 is provided on the back portion 7 so as to be detachable and / or swingable. The lifting lifter 4 is provided on the support frame 5 via the rotating unit 6 so as to be rotatable substantially 90 ° in the left-right direction. In the figure, reference numeral 9 denotes a stay which is hung between the back portion 7 and the receiving portion 8, and is provided as necessary.

In the figure, reference numeral 10 denotes a hoist support device, and the hoist support device 10 is a support column 101 which is loosely fitted to the prism 3.
And a hoist suspension 102 provided on the support column 101
It is composed of The hoist 11 is hung on a lifting rod (to be described later) of the hoist hanging part 102. In this example, the hoist suspension 102 is
Left and right housings 1 provided on the left and right via a connecting member 102a
02b (hereinafter simply referred to as a housing 102b; a symmetrical configuration is omitted); and a long hole 102 provided in the housing 102b.
c and the elevating rod 102d inserted between the long holes 102c.
And an operator 102f (dog) provided on the elevating rod 102d, and a limit switch 102g contacted by the operator 102f. Therefore, hoist 11
And the lifting rod 102d descends,
The actuator 102f is lowered, contacts the limit switch 102g, and stops the rotation of the hoist 11. In this configuration, the hoist hanging portion 102 is close to the prism 3 (in a state where it is located beside and near the prism 3 and is referred to as a prism side A) or separated (in a state where the hoist suspension 102 is located in front of the prism 3 and is opposite the prism A). '). Therefore, the hoist suspension 102
When is on the prism side A, operations such as mounting or removing the hoist 11 and repairing are performed. When the hoist suspension 102 is on the side A 'opposite to the prism, the hoist 11 is used to perform operations such as lifting and lowering the lifter 4.
The hoist 11 winds or rewinds a hanging member 12 such as a wire or a chain connected to the lifting lifter 4. The hoist support device 10 is provided rotatably on the prism 3 and configured to follow the movement of the lifting lifter 4,
The hoist 11 is prevented from being twisted. Note that a stopper rod 13 is provided on the hoist support device 10, and the stopper rod 1
The stopper 14 inserted in the prism 3 may be locked to the stopper rod 15 of the prism 3.

[0015]

According to the present invention, a prism is provided alongside a pole at a construction site by using each connecting body, a lifting lifter provided to be able to move up and down on the prism, and a hoist which controls the lifting of the lifting lifter. The hoist support device provided on the hoist lifter has a support column body rotatably provided on a prism,
A hoist suspension provided on the support column. Therefore, the structure of the hoist support device can be simplified, or the hoist support device can be securely and easily attached to the prism, and the hoist can be securely and easily attached and detached by utilizing the turning of the hoist support device. In particular, in the present invention,
There is a feature that the hoist can be mounted and removed by turning the hoist support device to the prism side, and the wire for lifting can be wound and unwound by turning the hoist support device to the opposite prism side.

A hoist of a hoist lifter for a construction site, wherein a load applied to the hoist of the hoist support device is detected, and when a load exceeding a certain level is applied, a switch is operated to stop the rotation of the hoist. It is a supporting device. Therefore, reliable operation of the hoist support device and failure avoidance can be achieved.

According to a third aspect of the present invention, there is provided a hoist support device for a hoist lifter for a construction site, wherein the support column of the hoist support device is configured to be loosely fitted into a prism. Accordingly, the connection between the support boom and the prism is strengthened, and the hoist can be reliably and reliably suspended.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the whole of the present invention.

FIG. 2 is an enlarged side view showing a main part of the present invention.

FIG. 3 is an enlarged perspective view of the hoist support device.

FIG. 4 is an enlarged sectional view of the hoist support device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pole 2 Connecting body 21 Clamp part 2a Base part 2b Bending point part 3 Prismatic column 31 Mounting part 31a Hole 4 Lifting lifter 5 Support frame 6 Rotating part 7 Back part 8 Receiving part 9 Stay 10 Hoist support device 101 Support column 102 Hoist suspension Lower part 102a Connecting member 102b Housing 102b Slot 102c Lifting rod 102f Actuator 102g Limit switch 11 Hoist 12 Suspension member 13 Stopper rod 14 Stopper 15 Stopper rod A Square prism side A 'Reverse prism side

Claims (3)

[Claims] 1. A prism provided along a pole, such as a scaffold or a ladder, provided at a construction site by using a large number of connectors, and the prism can be freely raised and lowered via a support frame loosely fitted to the prism. A hoist supporting device provided on a hoist lifter comprising a lifting lifter provided and a hoist which manages lifting and lowering of the lifting lifter, wherein the hoist supporting device is provided with a support pillar rotatably provided on a prism. , And a hoist suspension provided on the support column,
A hoist lifter for a construction site, in which the hoist is mounted and removed by turning the hoist support device to the prism side, and the wire for lifting and lowering is wound and unwound by the turning operation to the opposite prism side. Hoist support device. 2. The construction site according to claim 1, wherein a load applied to the hoist of the hoist support device is detected, and a switch is activated when a load equal to or more than a predetermined value is applied to stop the rotation of the hoist. Hoist support device for hoist lifter. 3. The hoist support device for a hoist lifter for a construction site according to claim 1, wherein the support column of the hoist support device is loosely fitted in a prism.