JPH0247392B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevating radar column that is attached to a ship or the like and is raised and lowered when the ship passes under a bridge.

Depending on the navigation area of a ship, air draft lines are restricted by bridges, electric cables, etc., and conventionally radar columns of ships passing through these areas have been raised and lowered using hydraulic cylinders or hand winches. .

For example, the method of raising and lowering with a hydraulic cylinder is
As shown in the figure, the lower end of the radar column 1 is pivotally supported by the radar column mount 2, a support 4 is provided on the pillar part 3 of the radar column 2, and one end of the hydraulic cylinder 5 is attached to the side of the radar column 1. The other end was connected to the support base 4. When the ship approaches under a bridge, a hydraulic pump (not shown) is activated to bring down the radar column 1 to the position indicated by the dotted line in the diagram, and after passing, the hydraulic pump is activated again to return it to its original position. was. This method requires a hydraulic pump, a hydraulic cylinder, etc., which makes the device expensive and requires a considerable amount of installation space.

For example, as shown in FIGS. 2 and 3, the method of raising and lowering the radar column 1' with a hand winch is to erect a long bearing pedestal 6 on the radar column 2' and pivotally support the radar column 1' in the middle. A wire 7 is tied to the lower end of the radar column 1', and the wire 7 is hoisted up by a hand winch 8 to raise the radar column 1', or by loosening it, the radar column 1' is laid down. This system has the problem that the long radar column 1' is toppled sideways, so each member must be strong, resulting in a large and expensive device.

The present invention provides a radar column that solves these problems, and by changing the radar column from a circular column to a square column to prevent rotation of the radar column, and changing from a tilting type to an elevating type. It is characterized by a simple mechanism.

That is, the present invention relates to an elevating radar column in which a square inner tube is fitted into a vertically fixed square outer tube and slides vertically, and a radar column is erected at the top of the inner tube. be.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 4 is a left side view of a radar column according to an embodiment of the present invention, and FIG. 5 is a front view. As shown in the figure, a radar column main body 10 is erected on a deck 11, and a square outer cylinder 12 is vertically fixed to the upper front surface of the main body 10. A square inner cylinder 13 that slides vertically is fitted into the square outer cylinder 12, and a radar antenna 14 is mounted on the upper part of the inner cylinder 13.
has been erected.

The square outer cylinder 12 grips the square inner cylinder 13 and guides the square inner cylinder 13 when moving it up and down. FIG. 6 shows the periphery of the square outer cylinder taken along the line A-A in FIG. A wide gap 15 is formed in the center of the back surface of the square outer cylinder 12 over the entire length in the longitudinal direction of the cylinder, and rail rods 16, 16 are welded to the inner surfaces of both edges of the gap 15. These are for smooth raising and lowering of the square inner cylinder 13. At the lower left side of the square outer cylinder 12, there is a T-bar that tightens and fixes the side surface of the square inner cylinder 13, as shown in FIG. shaped tension bolt 1
7 is provided. Further, as shown in FIG. 4, a certain width of the lower square outer cylinder 12 is cut off in order to insert an upper stopper 18 therein. This upper stopper 18 is a plate that supports the bottom of the square inner cylinder 13 when it is raised.
As shown in FIGS. 8 and 9, it is hinged to the left front corner of the main body 10. When this upper stopper 18 is inserted into the cutout 25 of the square outer cylinder 12, it is pressed against the bottom of the square inner cylinder 13 and fixed, and when it is partially removed from the cutout 25, one end of the upper stopper 18 is fixed. is fixed to the left side surface of the main body 10 with a pin 26.

The square inner cylinder 13 has a square shape to prevent its rotation, and at the lower end of its rear surface, as shown in FIG. 10, there is an eye plate for connecting a wire 19 from a hand winch, which will be described later. 20 is provided protrudingly.

At the top of the main body 10, as shown in FIG.
A pair of pulleys 21a and 21b are provided, one pulley 21a stands up near the front edge of the top and carries the wire 19a from the lower end of the square inner cylinder 13, and the other pulley 21b stands near the left end of the top. It is erected near the edge and carries the wire 19b from the hand winch. As shown in FIG. 4, a lower stopper 22 is protruded from the lower front surface of the main body 10. As shown in FIG. The lower stopper 22 is a fixed plate that supports the bottom of the rectangular inner cylinder 13 in the lowered state, and has a dish shape as shown in FIG. 12, and has a drain hole 23 in the center. Further, as shown in FIG. 4, a hand winch 24 is further attached to the left side of the lower body, and a wire 19b hanging from a pulley 22b is wound around the drum of the hand winch 24.

Regarding the operation of raising and lowering the radar antenna, when lowering the radar column, first loosen the tension bolt 17 and raise the rectangular inner cylinder 13 slightly using the hand winch 24, then raise the upper stopper 13.
Release from 8. Next, the upper stopper 18 is removed from the cutout 25 of the square outer cylinder 12 and fixed to the left side surface of the main body 10 with a pin 26. Next, turn the hand winch 24 to move the square inner cylinder 13 to the lower stopper 22.
All you have to do is lower it to . On the other hand, when raising
Raise the square inner cylinder 13 with the hand winch 24 until the lower end passes the upper stopper 18, pull out the pin 26 of the upper stopper 18, and remove the cutout 2 of the square outer cylinder.
Insert into 5. Then, the hand winch 24 is turned to lower the square inner cylinder 13 onto the upper stopper 18, and finally the tension bolt 17 is tightened.

The radar column of the present invention is not limited to the above-described embodiments, and the square shape of the square outer cylinder 12 and the square inner cylinder 13 may also be used as long as they can prevent the rotation of the square inner cylinder 13 into which they are fitted. Therefore, in addition to the rectangular shape as in the embodiment, it may also be an octagonal shape or a so-called diagonal shape in which one side of a circle is cut off. The means for fixing the rectangular outer cylinder 12 is also not limited, and may be bolted or the like in addition to welding.

Further, the eye plate 20 for connecting the wire 19 may also be provided on one of the sides of the square inner cylinder 13 instead of on the back side. In addition, the tension bolt 17, upper stopper 18, lower stopper 22, etc. can be changed or replaced as appropriate.

The radar column of the present invention has the advantage that it has a simple structure, can be manufactured cheaply and easily, and has few failures.

[Brief explanation of drawings]

FIG. 1 is a side view of an example of a conventional folding radar column using a hydraulic cylinder. FIG. 2 is a side view of an example of a conventional folding radar column using a hand winch, and FIG. 3 is an enlarged view of the main parts thereof. FIG. 4 is a left side view of an elevating radar column according to an embodiment of the present invention, and FIG. 5 is a front view.
FIG. 6 is a partial cross-sectional view of the A-A section in FIG.
FIG. 7 is also a partial sectional view of the section BB. FIG. 8 is a plan view of the upper stopper portion, and FIG. 9 is a left side view. FIG. 10 is a left side view showing the locked state of the rectangular inner cylinder, FIG. 11 is a partial sectional view taken along the line CC in FIG. 4, and FIG. 12 is a plan view of the lower stopper. 10...Radar pillar body, 11...Detsuki, 12
... Square outer cylinder, 13 ... Square inner cylinder, 14 ... Radar column, 19, 19a, 19b ... Wire, 24 ...
...Hand winch.

Claims (1)

[Claims] 1 A square inner cylinder that slides vertically is fitted into a square outer cylinder fixed vertically to the top of the radar column main body, and a wire is fixed at one end to the lower part of the square inner cylinder. A winch for raising and lowering the square inner cylinder is provided, an upper stopper that rotates and supports the bottom of the square inner cylinder when the square inner cylinder is raised, and a lower stopper that supports the bottom when the square inner cylinder is lowered, and An elevating radar column with a radar antenna erected at the top of the rectangular inner cylinder.