JPS58152794A - Post type crane - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a post-type crane that is removably interposed between the floor and ceiling of an 11M building. Lifting objects was accomplished by setting up a tripod and suspending a chain block from the top. In this case, it was troublesome to transport the tripod and to set it upright so that the legs would not be spread too far apart, and it was impossible to move the tripod horizontally as it was due to the heavy weight.

Therefore, the present invention provides a simple boss type crane that solves the above problems.

The crane of the present invention is first provided with a vertical ball 2 having a jack part 1 whose pole length is extendable and retractable. Then, the intermediate part of the horizontal member S is attached to the vertical ball 2, and a ceiling abutting surface 3 is provided protrudingly at one end of the horizontal member, and a lifting part 4 is provided at the other end. In addition, a jacking portion 1 is provided at one end of the vertical ball 2. At the same time, the intermediate portion of the horizontal member 5 is provided at f! One end of the horizontal member 5 is pivotally connected to the straight ball 2 so that it can rotate in the vertical direction. Then, a wheel 6 is provided protrudingly from the one end of the horizontal member S. Furthermore, a rotatable means is interposed between the horizontal member 5 and the pressing surfaces 7 provided at both ends of the vertical ball 20 so that the horizontal member can rotate around the axis of the vertical ball 2. .

Each embodiment of the present invention will be described below based on the drawings.

1 to 7 show a first embodiment of the present invention.

The crane of the present invention comprises a vertical ball 2 and a horizontal member 5, as shown in the figure. The vertical ball 2 has the lower end shown in FIG.
It has a jack part l as shown in FIG. The jack part 1 has an internally threaded member 11 fitted and fixed to the inner surface of the lower end of the steel pipe 1G, and a threaded shear 7) 12 is screwed onto the member 11. A handle 13 is detachably attached to the threaded shaft 12, and a locking nut 34 for preventing loosening is screwed onto the threaded portion. Further, a spherical body fitting part ss is protruded from the lower end of the screw shaft 12, and a groove 30 for a retainer 7 is cut in the outer periphery of the lower end of the fitting part 35.

The vertical ball 2 is connected to the screw shaft 12 as shown in FIG.
A pressing member IS is connected via a spherical bearing 14 serving as a rotatable means 8, and its lower end surface forms a floor pressing twill surface 7.

Further, a pressing member Is is connected to the upper end of the vertical ball 2 via a spherical bearing 14 which is a rotatable means 8 according to the seventh WJ. The upper end portion forms the ceiling pressing surface 7. moreover,
As shown in FIG. S, a mounting member 16 for pivoting a horizontal member is welded and fixed to the upper intermediate portion of the vertical pole 2.

The mounting member 16 is formed in the shape of a small box, and a round bar insertion hole 17 for passing the vertical ball 2 is bored through the vertical surface thereof. Next, the horizontal member 5 is the second! El.

As shown in FIG. 3 or FIG. 5, a pair of U-shaped steels are welded back to back, and a narrow orifice 11s18 is formed from near the center in the longitudinal direction to one end. Its fork 1
A round bar insertion hole 19 (Fig. 3) is bored near the base of the vertical ball 2, and the round bar insertion hole 17 (Fig. 5) of the vertical ball 2 is aligned with the round bar insertion hole 19 (Fig. 5). The round bar 20 passes through the hole as shown in FIG. And both ends of the round shell are the so-called Matsuba Bin 21.
The intermediate portion of the horizontal member 5 is pivotally connected to the vertical ball 2 so that the horizontal member 5 can rotate slightly around the pivot point. Further, on the lower surface of the other end of the horizontal member S, a lifting part 4 consisting of a single-shaped hook is provided projecting at a distance in the longitudinal direction of the horizontal member S.
It is assumed that the chain block 25 can be locked like the first WJ. Further, a bolt hole 22 (FIG. 3) is bored at one end of the horizontal member, and an end projecting member 9 shown in FIG. 4 is detachably attached to one end of the bolt hole 22 as shown in FIG. 1. That is, the end projecting member 9 has a bolt hole 21 (FIG. 4) drilled at its lower end, which aligns with the bolt hole 22 (FIG. 3) at the one end.
Bolts 24 (Figure 111) are attached to them. A wheel 6 is attached to the upper end of the end projecting member 9, and the outer peripheral surface of the wheel 6 constitutes the ceiling abutment surface 3. As described above, the first embodiment of the tube of the present invention is completed.

Next, FIG. 8 shows a second embodiment of the present invention, which is capable of lifting a large heavy object to a higher position (higher ms+) than the first embodiment.

For this purpose, the horizontal member 5 is formed into a key shape, and
The horizontal member 5 is suspended between the tip of the vertical ball 2 and both ends of the horizontal member 5 by reinforcing members 27 via turn baffles 26, respectively.

Furthermore, a connecting piece 28 is connected to the middle of the vertical ball 2 by seven flange 29 and others, so that it is possible to accommodate various ceiling height differences. Next, FIG. 9 shows a third embodiment of the present invention. This is used for a device with a lower lift and a larger load than that of the second embodiment, and one reinforcing member 27 suspends the tip of the horizontal member 5. Furthermore, FIG. 10 shows a fourth embodiment of the present invention, which is suitable for high head and low load. It should be noted that the present invention is not limited to the above-described embodiments, and may be modified as appropriate.

Next, the operation of the present invention will be explained.

To assemble the crane according to the first embodiment of the present invention, proceed as follows. First, attach the jack l to the lower end of the vertical ball 2.
At the same time, a stamping member Is (FIG. 7) is attached to the lower end of the jack part l and the upper end of the vertical mail 2 via a spherical bearing 54. Next, the mounting @is of the vertical pole 2 is sandwiched between the forked part 18 of the horizontal member S shown in FIGS. 2 and 3,
Align the round rod insertion holes 17 and 111 of both as shown in Figure S,
A round rod 20 is passed through it and a pine needle bottle 21 is fixed thereto to prevent it from being removed. Next, the end projecting member 9 is attached to one end of the horizontal member 5 with a bolt 24 as shown in FIG. At this time, the height from the horizontal member S to the upper end of the wheel 6 and the height from the horizontal member S to the stamping member 15t are approximately configured. Next, the length between the pressing surfaces 7, 7 at both ends of the vertical ball 2 is determined by the floor surface 3.
1 and the ceiling surface 32, and the crane of the present invention is made to stand upright on the floor surface 31. Next, rotate the handle 13 of the jack part 1 to extend the vertical ball 2,
The pressing surfaces 7, 7 at both ends are respectively connected to the ceiling surface 32 and the floor surface 31 &
: Press firmly. And by Natsuto s4, Jyatsuki s
At the same time, remove the handle 13.

Then, when the vertical wheel 2 becomes self-supporting, the upper surface of the wheel 6 comes into contact with the ceiling surface 32. In this way, the crane of the present invention can be easily and quickly self-supported at an appropriate position within the building.

Thus, the load 33 having a weight of W is lifted up by the chain pull 25 which is engaged with the lifting part 4 of the horizontal member 5. At this time, the horizontal member S is pivotally connected to the vertical ball 2 by a round bar 20. Therefore, no bending moment is applied to the m1ic ball 2, and the load W is applied to the vertical ball 2 via the round bar 20 as a farm load. The maximum moment 1lllf-t applied to the right side of the vertical ball 2 in the horizontal member 5 of FIG. 1 is balanced by the product Wl-t1 of the reaction force W1 from the ceiling contact surface 3 of the wheel 6 and the length tl.

Here, t and tl are from the vertical ball 2 to W, as shown in the figure.
It is the distance to W. From the above, vertical ball 2
Since no bending moment is applied to the vertical ball 2, the load 33 can be safely lifted without any force acting to overturn the vertical ball 2. Next, when the load 33 is lifted and pushed in the horizontal direction, part of the vertical ball 2 rotates via the rotatable means 8, and the load 33 moves around the vertical ball 2. The crane has the above-mentioned configuration and has the following effects: This crane has a shirt middle part 1 on the vertical ball 2, and the crane can stand on its own by simply lifting and lowering the shirt part 1.
Crane can be easily and quickly placed at an appropriate location within the building, regardless of location.
You can install it and use it. Furthermore, this crane mainly consists of a vertical ball 2 and a horizontal member S, and has an extremely simple structure, so it can be manufactured lightweight and the crane can be easily moved. Furthermore, since the structure is simple as described above, the crane can be provided at low cost and is easy to handle. Furthermore, by pivotally attaching the horizontal member 5 of the crane to the vertical ball 2, only a vertical load can be applied to the vertical ball 2, and no overturning force is applied to the ball 2, allowing the crane to stand on its own safely and reliably.

At the same time, the main parts of the crane can be assembled and disassembled by attaching and detaching the round bar Roll, which is the pivot member, making it convenient to carry the crane. Furthermore, by providing wheels 6 on the horizontal member 5 and providing rotatable means 8 between the horizontal member 5 and the pressing surface 7, the lifted cargo can be moved around the vertical ball 2. Further, by providing the jack 5 at one end of the vertical ball 2, it can be positioned below the ball 2 when it is erected, so that the work of expanding and contracting the jack is facilitated.

[Brief explanation of the drawing]

The drawings show each embodiment of the present invention, FIG. 1 is an elevational view of the first embodiment, FIG. 2 is a plan view of the horizontal member S of the same embodiment,
Figure 3 is the same elevation view, 4th v! J is an elevational view of the end projecting member 9, No.! Fig. S is a view taken along the arrow A-^ in Fig. 1, Fig. 6 is a partial longitudinal sectional side view of the jacking portion l of the vertical ball 2, Fig. 7 is a longitudinal sectional view of the rotatable means 8, and Fig. 8. 1 is an elevational view of the second embodiment, and FIG. 9 is an elevational view of the third embodiment (lower part omitted).
FIG. 110 is an elevational view of the fourth embodiment. l... Jacket part, 2... Vertical ball, 3... Ceiling □ Contact surface, 4... Lifting part, 5... Horizontal member,
6... Wheel, 7... Pressing surface, 8... Rotatable means, 9... End protruding member, 1G... #1 pipe, 11...
- Internal threaded member, 12... Threaded shaft, 13... Handle, 14... Spherical bearing, 15... Pressing member, 1
6...Mounting member, 17.19...Round bar insertion hole, 18
...fork, 20...round bar, 21...pine needle bottle,
22.23... Bolt hole, 24... Bolt, 25.
...Chainpu Yotsuk, 26-...Turn baffle, 27
...Reinforcement material, 28...Connection bee - Nut, 3... Spherical body fitting part, 36... Covering rubber. Agent Patent Attorney Kubo 1) Taku Midai 1 Figure 2 Figure 4 Figure 5 '30 Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1) A vertical ball ■ having a jack part α) whose ball length is expanded and contracted, an intermediate part attached to the vertical ball ■, and a ceiling contact surface ■ projected from one end; , and a horizontal member having a lifting member at the other end. 2) Jack part where the pole length can be expanded and contracted a) [A vertical ball (■) at one end, and the middle part is pivoted to the vertical ball (■) so that one end can rotate in the vertical direction, and the wheel direction is attached to the one end. A horizontal member Is) with a lifting member 5 (4) provided at the other end and a horizontal member Is) provided at both ends of the vertical ball ■ so that the horizontal member -) can freely rotate around the axis of the vertical ball ■. A boss comprising a rotatable means β) interposed between the pusher II surface and the horizontal member (S)] I crane.