RU2540214C2 - Rotary platform and vehicle with such platform - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: rotary platform contains bearing plate made with hole passing through in vertical direction, structural member located above bearing plate and providing possibility to connect to it a boom or a ladder, and additional plate. Additional plate is installed with possibility of tight connection with either top surface or bottom surface of bearing plate. When additional plate is connected with top surface of bearing plate it has horseshoe-shaped form enclosing part of bearing plate. When additional plate is connected with bottom surface of bearing plate it is formed with presence of circular-shaped hole in its centre. Vehicle is provided with above characterised rotary platform.

EFFECT: perfected design.

4 cl, 4 dwg

Description

CROSS REFERENCE TO RELATED APPLICATION (APPLICATIONS)

This application, in accordance with Section 359 of Section 35 of the United States Code of Law, claims the priority and advantage of Korean Patent Application No. 10-2012-0019213, filed February 24, 2012, which is incorporated herein by reference in its entirety.

BACKGROUND

1. TECHNICAL FIELD

The following description relates to a pivoting platform, and more particularly, to a pivoting platform providing the ability to pivot a retractable ladder equipped in machines having boom equipment or in a car with a multi-section retractable ladder relative to a vehicle body and a vehicle containing a pivoting platform.

2. DESCRIPTION OF THE PRIOR ART

A vehicle with a multi-section retractable staircase provides the user with the ability to obtain easy access from the ground to a specific floor of a building, such as an apartment in a high-rise building. For example, in a fire place, a fire engine equipped with a multi-section retractable ladder allows firefighters to enter a high-rise building on the appropriate floor, putting out a fire, and save lives.

Korean Registered Patent No. 20-0258475 (published December 28, 2001) discloses a car with a multi-section retractable ladder equipped with auxiliary rails.

A car with a multi-section retractable ladder described in the patent above comprises a housing, a rotary platform that is mounted on the upper part of the housing so that it rotates in a horizontal direction, a ladder assembly that is formed with many steps and connected to the rotary platform in a vertical direction, and a lift movably connected to the node of the ladder. The turntable is made thicker than other elements in order to prevent the formation of cracks or damage during the rotation of the ladder assembly. However, as the deadweight of the turntable increases, the thickness of the vehicle body to which the turntable is attached must increase, which leads to an increase in manufacturing cost.

SUMMARY OF THE INVENTION

The following description relates to a turntable with reduced dead weight and a vehicle comprising a turntable.

In one general aspect, a rotary platform is provided, comprising: a carrier plate made with a particular thickness and a hole of a special shape extending through it in the vertical direction; a structural element located above the base plate and providing the ability to connect boom or ladder equipment to it; and an additional plate made with a special thickness and with the possibility of forming in accordance with part of the carrier plate and tight connection with either the upper surface or the lower surface of the carrier plate.

Other features and aspects will be apparent from the following detailed description, drawings, and claims.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a drawing illustrating a perspective view of a turntable according to an illustrative embodiment of the present invention.

Figure 2 is a drawing illustrating a top view of the carrier plate and the additional plate of the turntable shown in figure 1.

Figure 3 is a drawing illustrating a side view of the turntable shown in figure 1.

Fig. 4 is a drawing illustrating a perspective view showing the bottom of the turntable shown in Fig. 1.

In all the drawings and in the detailed description, unless otherwise described, the same reference numbers should be understood as a reference to the same elements, features and structures. The relative size and image of these elements can be increased for clarity, illustration and convenience.

DETAILED DESCRIPTION

The following description is provided to assist the reader in gaining a comprehensive understanding of the methods, devices, and / or systems described therein. Accordingly, various changes, modifications, and equivalents to the methods, devices, and / or systems described therein will be offered to the ordinary person skilled in the art. Also, descriptions of well-known functions and constructions may be omitted to enhance clarity of conciseness.

1 is a drawing illustrating a perspective view of a turntable according to an illustrative embodiment of the present invention. Figure 2 is a drawing illustrating a top view of the carrier plate and the additional plate of the turntable shown in figure 1. Figure 3 is a drawing illustrating a side view of the turntable shown in figure 1. Fig. 4 is a drawing illustrating a perspective view showing the bottom of the turntable shown in Fig. 1.

With reference to FIG. 1, the turntable 100 comprises a carrier plate 110 and at least one structural member 120.

The carrier plate 110 has a special thickness. The base plate 110 is connected to the car body with a multi-section retractable ladder. The carrier plate 110 can move in the left and right directions relative to the vehicle by means of a power unit, which is not illustrated in FIG.

The structural member 120 is located above the base plate 110. The structural member 120 may have various shapes, such as a polygonal prism, a cylinder, and the like. The structural member 120 is tilted in one direction relative to the carrier plate 110. The structural member 120 may be connected to a car ladder or a boom of a heavy machine and the like.

In contrast to the conventional carrier plate, the carrier plate 110 contained in the rotary platform 100 of FIG. 1 has a hole 111 of a special shape extending through it in the vertical direction, as shown in FIG. 2. The hole 111 may contribute to reducing the dead weight of the turntable 100. In this case, the thickness of the carrier plate 110 of the turntable 100 may be desirably thinner than the thickness of the conventional carrier plate. Accordingly, the dead weight of the turntable 100 can be further reduced.

The turntable 100, in addition, may contain additional plates 130 and 140 (with reference to figures 3 and 4). Additional boards 130 and 140 are made with a special thickness and corresponding to parts of the carrier plate 110, respectively. Additional plates 130 and 140 are closely associated with each of the upper surface and lower surface of the carrier plate 110. Due to this, although the turntable 100 has a carrier plate 110 that is thinner than the carrier plate of a conventional turntable, the turntable 100 s additional plates 130 and 140 connected to the base plate 110 may exhibit strength similar to that of a conventional turntable.

Accordingly, the voltage applied to a specific part of the carrier plate 110 is distributed over the carrier plate 110 when the turntable 100 is rotated relative to the vehicle body so that a stable rotation of the turntable 100 can be achieved without damage.

If the additional plate 130 is connected to the upper surface of the carrier plate 110, as shown in FIG. 1, the additional plate 130 is placed between the upper surface of the carrier plate 110 and the structural member 120 and is located on the front side of the carrier plate 110 with respect to the direction in which the structural element 120 is inclined and extends from the carrier plate 110. The additional plate 130 may be horseshoe-shaped, covering the right side of the carrier plate 110, as shown in FIG.

As another example, if the additional plate 140 is connected to the bottom surface of the carrier plate 110, the additional plate 140 is formed along the edge of the carrier plate 110. More specifically, the additional plate 140 may be formed with a hollow round-shaped hole in its center and adjacent passes around the circumference of a hollow hole. Cables or brake can be routed through the hollow hole.

In addition, a pivot bearing, which is not illustrated, can be bolted to an additional plate 140 and a bearing plate 110 through connecting passages in order to facilitate rotation of the pivoting platform 100 relative to the vehicle body. In addition, to supply energy from the brake and the rotation of the turntable 100 due to this energy, an annular gear with gear teeth formed along its inner surface can be bolted to an additional plate 140 and the base plate 110 through the connecting passages.

As described above, by reducing the dead weight of the turntable 100 compared to the conventional turntable, the operator is able to easily assemble the turntable with the vehicle body during assembly of the vehicle parts. In addition, the reduced dead weight of the turntable 100 contributes to reducing the need to increase the thickness of the upper surface of the body of a heavy equipment or vehicle with a multi-section retractable ladder (not illustrated) to which the turntable 100 is attached. Consequently, the manufacturing cost of the turntable is also reduced.

In addition, by reducing the dead weight of the turntable 100, the voltage applied to the brake and the ring gear, each of which transfers energy to the turntable 100 when the turntable 100 is rotated relative to the vehicle body, can be weakened, thereby preventing brake wear and gears and thereby reducing manufacturing costs.

A number of examples have been described above. However, it should be understood that various modifications may be made. For example, suitable results can be obtained if the described technologies are performed in a different order and / or if the constituent elements in the described system, structure, device or circuit are otherwise combined and / or replaced or supplemented by other constituent elements or their equivalents. Accordingly, other embodiments fall within the scope of the legal claims of the following claims.

Claims (4)

1. A turntable comprising:
a bearing plate having an opening extending through it in a vertical direction;
a structural element located above the base plate and providing the ability to connect boom or ladder equipment to it; and
an additional plate having a shape corresponding to a part of the carrier plate, and installed with the possibility of tight connection with either the upper surface or the lower surface of the carrier plate, while when the additional plate is connected to the upper surface of the carrier plate, the additional plate has a horseshoe-shaped shape, covering part of the carrier plate, and when the additional plate is connected to the lower surface of the carrier plate, the additional plate is formed with a hollow round-shaped hole in its center. 2. The turntable according to claim 1, in which
the structural element is configured to tilt in one direction relative to the carrier plate, and
when the additional plate is connected to the upper surface of the carrier plate, the additional plate is located between the upper surface of the carrier plate and the structural element and is placed on the front side of the carrier plate relative to the direction in which the structural element is inclined and extends from the carrier plate. 3. The turntable of claim 1, wherein when the additional plate is connected to the bottom surface of the carrier plate, the additional plate is formed along the edge of the carrier plate. 4. A vehicle containing a turntable according to any one of claims 1 to 3.

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