JP3148929U - Article lifting mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting mechanism for an article that is simple in construction and can be reliably attached to a parapet and can be lifted from the ground onto the roof of a building. A fixing frame 2 fixed to a parapet 1 and provided with a horizontal tube fixing portion 24 at an upper end, a horizontal tube 4 fixed to the horizontal tube fixing portion 24, and a vertical tube 5 fixed to the horizontal tube 4. A vertical tube support 6 fixed to the vertical tube 5, a boom support 7 fixed to the upper portion of the vertical tube 5, and the boom support 7 so as to be pivotable in the horizontal direction. An article lifting mechanism comprising a boom 8 and a winch 90 for lifting the article 93 by the boom 8. [Selection] Figure 1

Description

The present invention relates to an article lifting mechanism for lifting heavy objects such as communication equipment on the roof of a building.

When installing communication equipment such as antennas on the roof of a building, the parts of the communication equipment are lifted from the ground to the installation site and assembled. In this case, conventionally, lifting is performed on the roof of a building using lifting means called a projecting scaffold with a work radius of about 1 m.
Since this overhanging scaffold has a rated load of 250 kg, a lifting height of about 20 m, and a working radius of about 1 m, it is impossible to lift heavy objects to a high building and the radial work is small, so there are restrictions on the work.

A simple crane as shown in Patent Document 1 has also been proposed.
This simple crane is used by being attached to the scaffolding strut (1), and is provided at the upper part of the base end of the arm (5), and a ring-shaped attaching part (3) through which the scaffolding strut (1) can penetrate, and the arm (5 ) It has a contact part (4) which is provided at the lower part of the base end and contacts the scaffolding strut (1).
According to this simple crane, attachment to and removal from the scaffold is easy, and the effect of improving work efficiency at the work site is achieved.
Utility model registration No. 3023683

However, since the simple crane of the above-mentioned patent document 1 is supported only by the ring (1) penetrated by one scaffolding column and the lower contact part (4), it is possible to lift heavy objects such as communication equipment. In addition, there is a problem that the operating state is also unstable.

  The present invention has been made in view of the above points, and since it is firmly and securely fixed to a parapet (a low wall provided on the outer periphery of a building rooftop, etc.), the stability is high and a heavy object is increased. Provided is a lifting mechanism for an article that can be safely lifted to a place.

The gist of the present invention is that a fixing frame fixed to a parapet and having a horizontal tube fixing portion at an upper end, a horizontal tube fixed to the horizontal tube fixing portion, a vertical tube fixed to the horizontal tube, and the vertical tube A vertical pipe support fixed to the pipe, a boom support fixed to the upper part of the vertical pipe, a boom attached to the boom support so as to be rotatable in a horizontal direction, and a pulley provided at the tip of the boom. An article lifting mechanism comprising a winch for lifting an article.

The gist of the present invention is that the fixing frame includes a horizontal member that is in close contact with the upper side surface of the parapet, an outer vertical member that is fixed to one end of the horizontal member and is in close contact with the outer side surface of the parapet, This is a lifting mechanism for an article constructed in a substantially U shape by an inner vertical member fixed to the other end and provided with fixing means at the lower part.

Also, the gist of the present invention is an article lifting mechanism in which the vertical tube support is formed into a substantially equilateral triangle in plan view by three side plates, and the vertical tube fixing portions are provided at three positions at each vertex. is there.

Further, the gist of the present invention is that the boom support body is configured in a substantially equilateral triangle in plan view by three side plates, and a fixing portion of a vertical pipe is provided at three points of each vertex, and the two side plates are provided with two side plates. This is a lifting mechanism of an article in which two support plates are attached and a pin insertion portion is formed on the support plate.

  Since the present invention is configured as described above, according to the first aspect of the present invention, the lifting mechanism is constructed simply by assembling the horizontal pipe and the vertical pipe on the basis of the fixed frame fixed to the parapet. It can be securely and firmly attached to the roof of a building, and a safe and efficient lifting work of heavy objects can be performed.

According to the second aspect of the present invention, since the fixed frame is formed in a substantially U shape by the horizontal member, the outer vertical member, and the inner vertical member, the fixed frame can be easily and firmly attached to the parapet.

  According to the third aspect of the present invention, the vertical pipe support is configured in a substantially equilateral triangle in plan view, and the vertical pipe fixing portions are provided at three positions at each vertex, so that the vertical pipe is stably supported.

  According to the fourth aspect of the present invention, the vertical tube support of the boom support is configured to have a substantially equilateral triangle in plan view, and the vertical tube fixing portions are provided at three positions at the apexes, and the boom is rotatably attached. Therefore, the boom can be stably supported.

In the best mode for carrying out the present invention, a substantially U-shaped fixing frame having a horizontal tube fixing portion at the upper end is fixed on a parapet, and the horizontal tube is fixed horizontally to the horizontal tube fixing portion by a clamp. .
Three vertical tubes are fixed to the horizontal tube vertically by a clamp, and this vertical tube is fixedly supported by a vertical tube support.
A boom support is fixed to the upper part of the vertical pipe, the boom is pivotably mounted in the horizontal direction via the boom support, and a winch for lifting an article via a pulley provided at the tip of the boom is installed on the roof. This is a mechanism for lifting an article.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
1 is a side view of an article lifting mechanism, FIG. 2 is a plan view thereof, FIG. 3 is a side view of a fixed frame attached to a parapet, FIG. 4 is a partially cutaway perspective view of the fixed frame, and FIG. FIG. 6 is an exploded perspective view of the tube support, FIG. 6 is an exploded perspective view of the boom support, and FIG. 7 is a side view of the boom.

The fixed frame 2 will be described with reference to FIGS. The fixed frame 2 is substantially U-shaped, and fixes the outer vertical member 21 and the inner vertical member 23 at right angles to both ends of the horizontal member 22 that is in close contact with the upper side surface 1 b of the parapet 1.

A rubber material 22a is fixed to the back side of the horizontal plate 22b and a horizontal tube fixing portion 24 is erected on the front side of the horizontal member 22 in order to stably adhere to the upper side surface 1b of the parapet 1. The horizontal tube 4 is horizontally fixed to the horizontal tube fixing portion 24 by a clamp 41.
Furthermore, six long holes 22c are formed in the horizontal plate 22b in two rows.

A rubber material 21 a is fixed to the back side of the outer vertical member 21 so as to be in close contact with the outer surface 1 a of the parapet 1.

A fixing means 25 is formed below the inner vertical member 23.
The fixing means 25 includes an operating rod 26 penetrating a hole 23a provided in the lower portion of the vertical plate 23a of the inner vertical member 23 of the fixed frame 2 and a pressing body 27 provided at the tip thereof. A rubber 27 a is attached to the surface of the pressing body 27.
The operating rod 26 has a spiral on its peripheral surface, and moves forward (leftward in FIG. 3) in the horizontal direction while screwing into the hole 23 a to press the moving member 31.

On the other hand, a moving member 31 is attached to the lower surface of the horizontal member 22 so as to be movable in the horizontal direction. The moving member 31 is made of H steel, and four holes 31c corresponding to the long holes 22c of the horizontal plate 22b of the horizontal member 22 are formed in the upper plate 31b formed at the upper end, and the front side plate is formed. Two elongated holes 31e are formed in 31d, and rubber 31a is adhered to the upper end.
The moving member 31 is fixed to the horizontal plate 22b through the bolt B through the long hole 22c and the hole 31c.

An angle 35 is attached to the side plate 31 d of the moving member 31. The angle 35 is an L-shaped metal plate, and a rubber 35b is fixed to the horizontal portion 35a on the upper surface, and two holes 35d are formed in the vertical portion 35c. The hole 35d corresponds to the long hole 31e of the side plate 31d, and the angle 35 is fixed to the side plate 31d by passing a bolt B through the hole 35d and the long hole 31e.

The configuration of the vertical tube support 6 will be described with reference to FIG.
The vertical tube support 6 is composed of three rectangular side plates 61 having the same shape in an equilateral triangle, and vertical tube fixing portions 62 are provided at three positions at each vertex.
The fixed portion 62 of the vertical pipe is constituted by a fixed holding body 63 and a movable holding body 64. The fixed clamping body 63 is fixed to three places on the top of the side plate 61, and includes a concave portion 63b for accommodating the vertical tube 5 and fastening portions 63a projecting on both sides thereof.
On the other hand, the movable holding body 64 has the same shape as the fixed holding body 63 and is fastened to the fastening portion 63a of the fixed holding body 63 with a bolt B by the fastening portion 64a.

The configuration of the boom support 7 will be described with reference to FIG.
The boom support 7 has two parallel support plates 71 attached to the two side plates 61 of the vertical tube support 6, and fixed fixing plates 73 and 73 are fixed horizontally in front of the support plate 71. A pipe-like pin insertion portion 72 is configured to penetrate the plates 73 and 73.

The configuration of the boom will be described based on FIG.
The boom 8 is configured in a right triangle shape by a horizontal rod 81 having a pulley 91 at the tip, an inclined rod 82 and a vertical rod 83.
A rotation support portion 84 constituting a pin insertion portion 85 is fixed to the vertical rod 83. The boom 8 is pivotably mounted in the horizontal direction by inserting the pin 88 into the pin insertion portions 72, 85, 72 by sandwiching the upper and lower sides of the rotation support portion 84 between the two boom supports 7. .

The operation of this embodiment configured as described above will be described.
First, the horizontal member 22 of the fixed frame 2 is attached to the upper surface 1 b of the parapet 1 and the outer vertical member 21 is attached to the outer surface 1 a of the parapet 1, and the fixed frame 2 is attached to the parapet 1.
In this case, as shown in FIG. 2, the fixed frame 2 is fixed at four corners of the parapet 1.

Next, the operating rod 26 of the fixing means 25 attached to the inner vertical member 23 is advanced, and the moving member 31 is moved by the pressing body 27 at the tip thereof to press against the inner surface 1d of the parapet 1. As a result, the moving member 31 presses the inner surface 1 d of the parapet 1, and the fixing frame 2 is securely fixed to the parapet 1.
Thereafter, the bolt B which has been passed through the long hole 22c of the horizontal member 22 and the hole 31c of the moving member 31 in advance is fastened, and the moving body 31 is fixed to the horizontal plate 22b. In this case, since the movable body 31 can move by the length of the long hole 22c, it can correspond to the width of the parapet 1.
Next, the angle 35 is moved upward along the side plate 31d to press the rubber 35b against the lower surface of the parapet 1, and then the bolt B is fastened to fix the angle 35 to the side plate 31d.

Next, the horizontal tube 4 is horizontally fixed to the horizontal tube fixing portion 24 of the fixed frame 2 by the clamp 41. In this embodiment, four fixing frames are provided, and the four horizontal tubes 4 are crossed and fixed, so that the assembling becomes strong. Three vertical tubes 5 are fixed to the horizontal tube 4 with clamps 41.
Four reinforcing vertical tubes 55 are fixed vertically to the horizontal tube 4 and are erected on the roof. In order to stabilize the reinforcing vertical pipe 55, two parallel reinforcing horizontal pipes 45 and a crossed reinforcing horizontal pipe 46 are fixed horizontally to the lower part of the reinforcing vertical pipe 55 with a clamp 41.
Further, two reinforcing horizontal pipes 47 are fixed horizontally in a direction orthogonal to the reinforcing horizontal pipe 45, and the lower portions of the three vertical pipes 5 are fixed to the reinforcing horizontal pipe 47 by clamps 41.

Then, the vertical pipe support body 6 is attached to the three vertical pipes 5 standing on the roof, and the vertical pipes 5 are fixed to each other. A method of fixing the vertical tube 5 will be described with reference to FIG.
The vertical tube 5 is housed in the concave portion 63b of the fixed holding body 63 of the vertical tube support 6, and the movable holding body 64 is covered from above, and the fastening portions 63a, 64a are fastened by four bolts B and fixed. To do.

In this embodiment, five vertical tube supports 6 are attached. The number of attachments is arbitrary, but at least one or two at the lower part of the vertical tube 5 is necessary.

Next, two boom supports 7 are attached to the upper end of the vertical tube 5. Since this attachment method is the same as that of the longitudinal tube support 6, description thereof is omitted.

A boom 8 is attached to the tip of the boom support 7 so as to be rotatable in the horizontal direction. That is, as shown in FIG. 6, the pin 88 is inserted into the pin insertion part 72 at the tip of the boom support 7, and the pin 88 is inserted into the pin insertion part 85 of the rotation support part 84 of the boom 8.

After assembling in this way, the article 93 is hung on the rope 92 and lifted by the winch 90 via the pulley 91.

Thus, according to the present embodiment, since the horizontal tube and the vertical tube are assembled on the basis of the substantially U-shaped fixed frame fixed to the parapet, the lifting mechanism can be easily, securely and firmly attached to the rooftop, Safe and efficient lifting of heavy objects can be performed.
The vertical tube is stably supported by the vertical tube support body, and the boom support body supports the vertical tube and can stably support the boom so that the boom can be freely rotated. Therefore, a safe and efficient lifting operation can be performed. It is.

Side view of the article lifting mechanism Top view of the article lifting mechanism Side view of the fixed frame attached to the parapet Partial cutaway exploded perspective view of fixed frame Exploded perspective view of vertical tube support Exploded perspective view of boom support Boom side view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parapet 2 Fixed frame 4 Horizontal pipe 5 Vertical pipe 6 Vertical pipe support body 7 Boom support body 8 Boom 21 Outer vertical member 22 Horizontal member 23 Inner vertical member 24 Horizontal pipe fixing part 25 Fixing means 26 Actuation rod 27 Press body 31 Moving member 35 Angle 61 Side plate 62 Vertical tube fixing part 63 Fixed clamping body 64 Movable clamping body 71 Support plate 72 Pin insertion part 81 Horizontal rod 82 Inclined rod 83 Vertical rod 84 Rotating support portion 91 Pulley

Claims (4)

A fixed frame fixed to the parapet and provided with a horizontal tube fixing portion at the upper end; a horizontal tube fixed to the horizontal tube fixing portion; a vertical tube fixed to the horizontal tube; and a vertical tube support fixed to the vertical tube; A boom support fixed to the upper part of the vertical pipe, a boom attached to the boom support so as to be rotatable in a horizontal direction, and a winch for lifting the article via a pulley provided at the tip of the boom. Lifting mechanism.   The fixing frame has a horizontal member that is in close contact with the upper side surface of the parapet, an outer vertical member that is fixed to one end of the horizontal member and is in close contact with the outer surface of the parapet, and a fixing means that is fixed to the other end of the horizontal member and is fixed to the lower portion. The article lifting mechanism according to claim 1, wherein the article lifting mechanism is formed in a substantially U shape by the inner vertical member provided. 2. The lifting mechanism for an article according to claim 1, wherein the vertical tube support is formed in a substantially equilateral triangle in plan view by three side plates, and fixed portions of the vertical tube are provided at three positions at each vertex. The boom support body is configured to have a substantially equilateral triangle in plan view by three side plates, provided with fixing portions of vertical pipes at three positions at each vertex, and two support plates are attached to the two side plates. 2. The article lifting mechanism according to claim 1, wherein a pin insertion portion is formed on the support plate.

Images