JP2011251834A - Crane device - Google Patents

Abstract

A crane apparatus having a high lift and a light weight is provided.
A base frame 110 that is pulled or pushed by a self-propelled lift device 200 and travels, and a mast 120 that is attached to the upper surface of the base frame 110 and lifts up the lift device 200 to thereby extend. Since it was equipped, the crane apparatus 100 does not need to be provided with the drive source required for self-propulsion, and the drive source required for expansion | extension of the mast 120, and becomes lightweight. Moreover, if the lift apparatus 200 is connected to the crane apparatus 100, the lift apparatus 200 functions as a counterweight, and the crane apparatus 100 can be prevented from overturning.
[Selection] Figure 1

Description

  The present invention relates to a traveling crane device.

  In a construction site where a medium-sized or small-scale building is constructed, a fixed crane device or a mobile crane device may be installed for unloading. However, the crane apparatus installed for unloading has a small working radius and cannot be used for attaching a unitized formwork. For this reason, it is necessary to carry and attach a reinforcing bar, a small member, etc. by human power, and it is one of the factors which does not raise the work efficiency of a construction site.

  Forms unitized with a small mobile crane device or a portable jib crane device can also be attached, but these are heavy and difficult to handle and relocate to the upper floor, handling, cost The sites that can be used from this point are extremely limited. For this reason, in order to attach the unitized formwork, a crane having a high lift and a light weight is required.

  In addition, although the crane apparatus pulled by the tow vehicle and carried to a work site is proposed, it cannot be used as it is in the construction site which constructs a medium-sized or small-scale building (for example, refer to patent documents 1).

Japanese Patent No. 2624623

  This invention is made | formed in view of the above, Comprising: It aims at providing the crane apparatus with a high lift and a lightweight.

  In order to solve the above-described problems and achieve the object, the present invention includes a traveling carriage that is towed or pushed and travels, and a mast that is attached to an upper surface of the traveling carriage and extends. To do.

  In the crane apparatus according to the present invention, the mast includes an outer mast attached to an upper surface of the traveling carriage, and an inner mast accommodated in the outer mast and pulled out from the outer mast. And

  Further, the present invention provides the crane apparatus, wherein the crane can be lifted up and down on an outer periphery of the outer mast, and lifted while supporting a lift pin attached to a through hole provided in the inner mast. A lift mast for pulling out the inner mast is provided.

  Further, the present invention is characterized in that the crane apparatus further includes a lift plate that is provided at an upper end portion of the lift mast and supports lift pins attached to through holes provided in the inner mast.

  Further, the present invention provides the crane apparatus, wherein the guide is attached to the lift mast in a mode positioned between the outer mast and the lift mast, and slides on the outer mast when the lift mast moves up and down. It is characterized by having.

  According to the present invention, in the crane apparatus, a mast pin that is mounted in a state of being inserted through a through hole provided in the outer mast and a through hole provided in the inner mast, and that fixes the outer mast and the inner mast. It is characterized by having.

  In the crane device according to the present invention, the inner mast is accommodated in the outer mast and is pulled out from the outer mast, and a top mast is accommodated in the intermediate mast and is pulled out from the intermediate mast. It is characterized by having.

  Further, the present invention is characterized in that in the crane apparatus described above, an undulating jib attached to an upper end portion of the mast is provided.

  Further, the present invention is characterized in that the crane apparatus includes a winch that winds up a wire having a crane hook attached to the tip.

  The crane apparatus according to the present invention includes a traveling carriage that is towed or pushed and travels, and a mast that is attached to the upper surface of the traveling carriage and extends, and thus has a high lift and a light weight.

FIG. 1 is a side view showing a state where the crane apparatus according to the first embodiment of the present invention is pulled or pushed by the lift apparatus. FIG. 2 is a plan view showing a state where the crane apparatus according to the first embodiment of the present invention is pulled or pushed by the lift apparatus. FIG. 3 is a side view of the crane apparatus shown in FIGS. 1 and 2. FIG. 4 is a plan view of the crane apparatus shown in FIGS. 1 and 2. FIG. 5 is a perspective view showing a main part of the crane apparatus shown in FIGS. 1 and 2. FIG. 6 is a side view of the lift device shown in FIGS. 1 and 2. FIG. 7 is a plan view of the lift device shown in FIGS. 1 and 2. FIG. 8-1 is a side view showing a mast extension procedure and shows an initial state. FIG. 8-2 is a side view illustrating a mast extension procedure, and is a diagram illustrating a state in which the top mast is being lifted up. FIG. 8C is a side view showing the mast extension procedure, and shows a state in which the lift-up of the top mast is completed. FIG. 8-4 is a side view illustrating a mast extension procedure, and is a diagram illustrating a state in the middle of lift-up of the intermediate mast. FIG. 8-5 is a side view of the mast extension procedure, showing a state in which the lift-up of the intermediate mast has been completed. FIG. 9 is a side view showing a state where the crane apparatus according to the second embodiment of the present invention is pulled or pushed by the lift apparatus. FIG. 10 is a plan view showing a state where the crane device according to the second embodiment of the present invention is pulled or pushed by the lift device. FIG. 11 is a side view showing the crane apparatus in a state where the mast is tilted. FIG. 12 is a side view showing the crane apparatus in a state where the mast is standing up.

  Hereinafter, an embodiment of a crane device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  The crane apparatus according to the embodiment of the present invention is suitable for mounting work such as unitized molds and is configured to have a high lift and a light weight.

(Embodiment 1)
FIG. 1 is a side view showing a state where the crane apparatus according to the first embodiment of the present invention is pulled or pushed by the lift apparatus, and FIG. 2 shows the crane apparatus according to the first embodiment of the present invention as a lift. It is a top view which shows the state pulled or pushed by the apparatus.

  As shown in FIGS. 1 and 2, the crane apparatus 100 according to the first embodiment of the present invention is pulled or pushed by a self-propelled lift apparatus 200. The crane apparatus is suitable for mounting work such as unitized formwork, and includes a base frame (traveling carriage) 110, a mast 120, a jib 150, and a winch 170.

  As shown in FIGS. 3 and 4, a rotatable free caster 111 is attached to the lower surface of the base frame 110, and the vehicle is towed or pushed by a lift device 200 connected to the crane device 100 and travels. Moreover, the base frame 110 is provided with the outrigger 112 protruding to the side, and the crane apparatus 100 is prevented from falling by protruding the outrigger 112 to the side before lifting a heavy object.

  The mast 120 is attached in an upright manner on the upper surface of the base frame 110. The mast 120 is a multi-stage (three-stage in this embodiment) telescopic mast, and includes an outer mast 121, an intermediate mast (inner mast) 122, and a top mast (inner mast) 123 from the outside to the inside. ing. The outer mast 121, the intermediate mast 122, and the top mast 123 all have a rectangular tube shape with a rectangular cross section. The intermediate mast 122 is accommodated inside the outer mast 121, and the top mast 123 is inside the intermediate mast 122. Contained.

  The mast 120 can be extended in three stages by pulling out the intermediate mast 122 and the top mast 123 from the outer mast 121. Specifically, the top mast 123 is accommodated in the intermediate mast 122 and the intermediate mast 122 is accommodated in the outer mast 121 (see FIG. 8-1), and the top mast 123 is pulled out from the intermediate mast 122 (FIG. 8- 3), the top mast 123 is pulled out from the intermediate mast 122 and the intermediate mast 122 is pulled out from the outer mast 121 (see FIG. 8-5) to be extended in three stages.

  A mast pin hole 121a (see FIG. 5) is provided in the middle and lower ends of the top mast 123, the upper and lower ends of the intermediate mast 122, and the upper end of the outer mast 121. And in the state which accommodated the top mast 123 in the intermediate mast 122 and the intermediate mast 122 in the outer mast 121, between the middle part of the top mast 123 and the upper end part of the intermediate mast 122, the upper end part of the intermediate mast 122 And the upper end of the outer mast 121 are mounted so as to penetrate the mast pin 124, and the top mast 123 and the intermediate mast 122, and the intermediate mast 122 and the outer mast 121 are fixed (see FIG. 8-1). Then, the mast pin 124 is pulled out from between the top mast 123 and the intermediate mast 122, and the mast pin 124 is penetrated between the lower end portion of the top mast 123 and the upper end portion of the intermediate mast 122 with the top mast 123 pulled out. The top mast 123 and the intermediate mast 122 are fixed (see FIG. 8-3). Further, the mast pin 124 is pulled out from between the intermediate mast 122 and the outer mast 121, and the mast pin 124 is penetrated between the lower end portion of the intermediate mast 122 and the upper end portion of the outer mast 121 with the intermediate mast 122 pulled out. The intermediate mast 122 and the outer mast 121 are fixed (see FIG. 8-5).

  Also, lift pin holes 122b (see FIG. 5) are provided in the middle portion of the top mast 123 and the upper end portion of the intermediate mast 122. The lift pin 125 is fitted in the lift pin hole 122b.

  A lift mast 126 is provided outside the mast (outer mast 121) 120. The lift mast 126 is used when the mast 120 is extended, is a frame that forms each side of the rectangular parallelepiped, and can be lifted and lowered along the mast 120. The lift mast 126 is provided with a corner guide 127 so as to be positioned between the outer mast 121 and the lift mast 126. When the lift mast 126 moves up and down, the corner guide 127 serves as a corner portion of the outer mast 121. Slide. Thereby, the lift mast 126 moves up and down smoothly. In addition, lift mast pin holes are provided in the lower part of the lift mast 126 and the lower part of the outer mast 121. Then, with the lift mast 126 lowered, the lift mast 126 is mounted with the lift mast pin penetrating between the lower portion of the lift mast 126 and the lower portion of the outer mast 121, and the lift mast 126 and the outer mast 121 are fixed.

  In addition, square pipes 128 are attached to both sides of the lower end portion of the lift mast 126. The fork 250 of the lift device 200 can be inserted into the square pipe 128, and the fork 250 inserted into the square pipe 128 is fixed by a bolt 129 attached to the square pipe 128, and is prevented from coming off. When the lift device 200 lifts the fork 250 with the fork 250 inserted into the square pipe 128, the lift mast 126 rises.

  As shown in FIG. 5, a lift plate 130 is provided on the upper end portion (upper end surface) of the lift mast 126. The lift plate 130 is a member that supports the lift pin 125 that is mounted in a state of penetrating the lift pin hole 122b, and the upper end thereof is formed by cutting out in a valley shape.

  As shown in FIGS. 3 and 4, a jib frame 151 is attached to the upper end portion of the top mast 123, and the jib frame 151 moves up and down together with the top mast 123. Further, an intermediate sheave 152 is rotatably attached to the jib frame 151, and a wire 171 described later is guided.

  The jib 150 is attached to the jib frame 151 so as to be raised and lowered. A undulation cylinder (hydraulic cylinder) 153 can be attached between the jib 150 and the jib frame 151, and the jib 150 is undulated when the attached undulation cylinder 153 expands and contracts. Further, a top sheave 154 is rotatably attached to the tip of the jib 150, and a wire 171 described later is guided.

  The winch 170 is attached to the upper surface of the base frame 110. The winch 170 winds up the wire 171 guided by the intermediate sheave 152 and the top sheave 154. When the wire 171 is wound up, the hook 172 attached to the tip of the wire 171 is lifted. When the hook 172 is connected to the jib 150 and the wire 171 is wound up before the undulation cylinder 153 is attached, the jib 150 is raised to a position where the undulation cylinder 153 can be attached.

  As shown in FIGS. 1 and 2, the lift device 200 can pull or push the crane device 100 and includes a base frame 210 and a fork 250. As shown in FIGS. 6 and 7, the base frame 210 is provided with a rotatable free caster 211 and a drive wheel 212 for running the lift device 200. The drive wheel 212 is driven by electric power of a mounted battery (not shown) and causes the lift device 200 to travel.

  The fork 250 has a pair of left and right claws 251. The fork 250 can be raised and lowered by hydraulic pressure, and the fork 250 can be lifted up with the claw 251 inserted into the square pipe 128 of the crane apparatus 100 described above.

  The lift device 200 can be used alone or, for example, can be used for removing a unit mold.

  In moving the crane apparatus 100 which is Embodiment 1 mentioned above, the crane apparatus 100 and the lift apparatus 200 may be connected, and the crane apparatus 100 may be pulled or pushed by the lift apparatus 200. Specifically, the lift device 200 and the crane device 100 are connected by inserting the forks 250 of the lift device 200 into the square pipes 128 attached to both sides of the lower end portion of the lift mast 126 of the crane device 100, and the lift device 200. By driving the drive wheel 212, the crane device 100 is pulled or pushed by the lift device 200.

  Next, a mast extension procedure of the crane apparatus 100 according to the first embodiment will be described with reference to FIG. FIG. 8 is a side view showing the mast extension procedure.

  First, as shown in FIG. 8A, the lift device 200 is connected to the crane device 100. Specifically, after inserting the claws 251 of the fork 250 into the square pipes 128 attached to both sides of the lower end portion of the lift mast 126, the bolt 129 is tightened. Then, lift pins 125 are attached to the lift pin holes of the top mast 123.

  Next, as shown in FIG. 8B, the lift device 200 is operated to raise the fork 250. Then, the lift mast 126 rises and the top mast 123 is lifted up via the lift pins 125. When the top mast 123 is lifted up and the mast pin 124 is inserted into the mast pin hole of the top mast 123 and the mast pin hole of the intermediate mast 122, the top mast 123 and the intermediate mast 122 are fixed. Thereafter, as shown in FIG. 8C, by lowering the fork 250, the top mast 123 maintains the lifted up state even when the lift mast 126 is lowered.

  Further, when the mast 120 is extended, lift pins 125 are attached to the lift pin holes of the intermediate mast 122 as shown in FIG.

  Next, the fork 250 is raised by operating the lift device 200. Then, the lift mast 126 rises, and the intermediate mast 122 and the top mast 123 are lifted up via the lift pins 125. If the mast pin 124 is inserted into the mast pin hole of the intermediate mast 122 and the mast pin hole 121a of the outer mast 121 while the intermediate mast 122 is lifted up, the intermediate mast 122 and the outer mast 121 are fixed. Thereafter, as shown in FIG. 8-5, by lowering the fork 250, the intermediate mast 122 is kept lifted even when the lift mast 126 is lowered. Finally, the lift mast 126 is attached to the lift mast pin hole of the lift mast 126 and the lift mast pin hole of the outer mast 121 in a state where the lift mast pin penetrates, and the lift mast 126 and the outer mast 121 are fixed.

  Since the crane apparatus 100 which is Embodiment 1 demonstrated above is towed or pushed to the self-propelled lift apparatus 200, the crane apparatus 100 does not need to be provided with the drive source required for self-propulsion. Thereby, the crane apparatus 100 becomes lightweight.

  Moreover, since the mast 120 of the crane apparatus 100 expands, it becomes a high lift. Furthermore, since the mast 120 is extended by the lift device 200 connected to the crane apparatus 100, the crane apparatus 100 does not need to have a drive source required for extending the mast 120. Thereby, the crane apparatus 100 becomes lightweight.

  Further, if the lifting operation is performed in a state where the self-propelled lift device 200 is connected to the crane device 100, the lift device 200 serves as a counterweight and can counter the overturning moment of the crane device 100.

  Furthermore, the lift device 200 can be used alone for removing the unit formwork, and can be used effectively in addition to moving the crane device 100 and extending the mast 120.

(Embodiment 2)
FIG. 9 is a side view showing a state where the crane apparatus according to the second embodiment of the present invention is pulled or pushed by the lift apparatus, and FIG. 10 shows the crane apparatus according to the second embodiment of the present invention as a lift. It is a top view which shows the state pulled or pushed by the apparatus.

  The crane apparatus 300 according to the second embodiment of the present invention is a collapsible mast in consideration of storage, transportation, replacement of used floors, and the like. In addition, about the structure same as the crane apparatus 100 which is Embodiment 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 9, in the crane device 300 according to the second embodiment, the mast 120 and the lift mast 126 can be tilted, and the reverse bracket 310 is attached to the base frame 110. The mast bracket 320 is attached. Further, the reversing bracket 310 and the mast bracket 320 are connected by a reversing pin 330, and the mast 120 and the lift mast 126 can fall around the reversing pin 330.

  In addition, a base 340 is attached to the base frame 110, and supports the lying mast 120 and the lift mast 126.

  As shown in FIG. 11, the crane device 300 according to the second embodiment described above is stored, transported, and replaced in a state where the mast 120 and the lift mast 126 are lying down. First, when the crane apparatus 300 is erected and can be used, the jib 150 is attached to the jib frame 151. Next, the wire 171 is pulled out from the winch 170, and the wire 171 is wound around the intermediate sheave 152 and the top sheave 154. And the crane apparatus 300 and the lift apparatus 200 are connected, and the crane apparatus 300 and the lift apparatus 200 are integrated.

  Then, the crane device 300 and the lift device 200 are moved directly below the hoist H attached to the existing steel beam B or the like. Next, the upper part of the mast 120 is lifted using a hoist H or the like, and the crane device 300 is moved to raise the mast 120. When the mast 120 stands, the mast pin 124 is mounted and fixed between the lift mast 126 and the outer mast 121, the outer mast 121 and the intermediate mast 122, and the intermediate mast 122 and the top mast 123.

  Then, after the mast 120 stands, the lower end portion of the outer mast 121 is fixed to the base frame 110, the reversing pin 330 is extracted, and the mast 120 is extended as necessary.

  Since the crane apparatus 300 according to the second embodiment described above stores the mast 120 and the lift mast 126 in a lying state, the packing state during storage and transportation becomes compact.

DESCRIPTION OF SYMBOLS 100 Crane apparatus 110 Base frame 111 Swivel caster 112 Outrigger 120 Mast 121 Outer mast 121a Mast pin hole 122 Intermediate mast 122b Lift pin hole 123 Top mast 124 Mast pin 125 Lift pin 126 Lift mast 127 Corner guide 128 Square pipe 129 Bolt 130 Lift plate 150 Jib 15 Frame 152 Intermediate sheave 153 Lifting cylinder 154 Top sheave 170 Winch 171 Wire 172 Hook 200 Lift device 210 Base frame 211 Swivel caster 212 Drive wheel 250 Fork 251 Claw 300 Crane device 310 Reverse bracket 320 Mast bracket 330 Reverse pin 340 Mounting base B Steel beam H Hoist

Claims (9)

A traveling carriage that is towed or pushed and travels;
A crane apparatus comprising: a mast that is attached to an upper surface of the traveling carriage and extends. The mast is
An outer mast attached to the upper surface of the traveling carriage;
The crane apparatus according to claim 1, further comprising: an inner mast accommodated in the outer mast and pulled out from the outer mast.   A lift mast is provided on the outer periphery of the outer mast so as to be movable up and down, and lifts in a state of supporting a lift pin attached to a through hole provided in the inner mast, thereby pulling out the inner mast from the outer mast. The crane apparatus according to claim 2, characterized in that:   The crane apparatus according to claim 3, further comprising a lift plate provided at an upper end portion of the lift mast and supporting lift pins attached to through holes provided in the inner mast.   4. The apparatus according to claim 3, further comprising a guide attached to the lift mast so as to be positioned between the outer mast and the lift mast, and sliding the outer mast when the lift mast moves up and down. 4. The crane apparatus according to 4.   3. A mast pin that is mounted in a state of being inserted through a through hole provided in the outer mast and a through hole provided in the inner mast, and that fixes the outer mast and the inner mast. The crane apparatus as described in any one of 5. The inner mast is
An intermediate mast housed in the outer mast and drawn from the outer mast;
The crane apparatus according to any one of claims 2 to 6, further comprising: a top mast that is accommodated in the intermediate mast and pulled out from the intermediate mast.   The crane apparatus according to any one of claims 1 to 7, further comprising an up-and-down jib attached to an upper end portion of the mast.   The crane apparatus as described in any one of Claims 1-8 provided with the winch which winds up the wire which attached the crane hook to the front-end | tip.

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