JPH0756502Y2 - Radar reflector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Fields of Industrial Application The present invention relates to an improvement of a radar reflector including reflecting plates of three planes orthogonal to each other.

(B) Conventional technology Folding lifeboats, rafts, etc. are difficult to see with a radar, so it is necessary to equip them with a radar reflector. Most of the radar reflectors are corner reflectors consisting of circular three-plane reflecting plates that are orthogonal to each other, but the radar reflectors that are three-dimensionally assembled cannot be stored in a folded lifeboat or liferaft, and thus are of a foldable type. Radar reflectors have been devised. These are those in which half-cut second and third plane plates are assembled on both sides of the first plane reflector, or the first plane reflector is folded in two.
At the same time as opening this, the second and third planes were automatically assembled.

(C) Problems to be solved by the invention In the former case, the size of the reflecting plate is one plane even when folded, and in the latter case, it can be folded in half the area.
When folded, the thickness of the flat plate causes distortion, resulting in poor assembly accuracy.

(D) Means for Solving the Problems The present invention is to cut each circular flat reflecting plate into a half-cut shape, and the first flat reflecting plate is overlapped at the center point of the circle of the first flat plate and rivet-contacted along the flat surface. The reflectors of the first plane are formed so as to be rotatable with respect to each other around the stud contacts, and the reflectors of the second and third planes are each formed by a line of intersection with the reflector of the first plane. The first and second flat plates are divided into two parts, and slits reaching the center are provided on the intersecting lines of the second and third flat plates, which are inserted into each other.
A means for connecting the end portions of the half-cut reflectors of the respective planes to each other is provided by providing projections for inserting and locking the slits provided on the intersecting lines of the plane reflecting plates, and inserting and locking from both sides of the first plane reflecting plate. It is a built-in radar reflector provided.

(E) Action When assembling, the half-cut shaped reflector plate of the first plane is rotated around the rivet contacts until the center lines overlap, and the reflector plate of the first plane is assembled, and slits are formed from both sides of the reflector plate. Inserted into the rectangular shape and assembled in an orthogonal shape, the protruding portions of the second and third reflecting plates are inserted into and locked in the slits of the reflecting plate of the first plane,
By connecting the connecting means provided at the end of the semi-cut reflector on the same plane, the assembly can be done accurately and easily.

In the retracted state, the semi-cut first flat reflector is rotated around the rivet contacts, and the second and third flat semi-finished reflectors are placed on top of each other. It fits compactly in the area and can be easily stored in a folded life raft.

(F) Embodiment FIG. 1 is a perspective view showing an assembling method of the radar reflector of the present invention, wherein ( 1 ) is a first plane reflector, ( 1 ),
(1 ') is a half-plane-shaped first flat reflector, (2),
(2 ') is a half-cut second plane reflector, (3),
(3 ') is a half-cut, third-plane reflecting plate, and (4) is a tack.

2a and 2b show a semi-cut first plane reflector ( 1 ),
In each of the plan views of (1 '), (4') is a hole for tacking, and the reflectors ( 1 ) and (1 ') of the first plane are tacked to the hole (4') with tacks (4), The reflectors can be rotated around each other around the tacks so that the reflectors are stacked in a semi-cut form or expanded to form the reflector ( 1 ) of the first plane. (5) and (5 ') are the second and third
Is a slit for inserting and locking the protrusion of the flat plate, and the outer slit (5 ') is a slit having a thickness of two reflectors, and the protrusion can be inserted and locked from both sides of the first reflector. .
Reference numerals (6) and (6 ') are button-shaped locking members which are in rivet contact with the reflection plates ( 1 ) and (1'), which are one example of means for connecting the ends of the half-cut reflection plates to each other. While rotating and expanding,
(6) and (6 ') are locked by turning the string (7). (8)
Is a hole for passing a hanging string.

FIGS. 3a and 3b are plan views of the semi-cut reflectors (2) and (2 ') of the second plane, wherein (9) and (9') are slits, (10) and (10 '). ) Is a protrusion which is inserted and locked in the slits (5) and (5 ') of the first flat reflecting plate. The semi-cut reflectors (3) and (3 ') of the third plane have the same shape as the semi-cut reflectors (2) and (2') of the second plane.

4a and 4b are explanatory views showing the assembling sequence of the semi-cut reflectors ( 1 ) and (1 ') of the first plane, and FIG. 4c.
FIG. 3 is a perspective view showing a state in which a radar reflector is assembled.
FIGS. 5A and 5B are a plan view and a perspective view showing a state in which the end portions of the half-cut reflectors on the same plane are connected to each other.

FIGS. 6a and 6b are a perspective view and a partially cutaway plan view showing a connecting order of another embodiment of the means for connecting the end portions of the reflectors on the same plane. Reflector (2 ')
Snap-on female button (1
1 ') is a connecting means for attaching and locking a snap-shaped male button (11) to the corresponding position of the reflector (2). In this case, the slit (5 ') has a thickness of one reflection plate.

(G) Effect of the Invention With the above-mentioned configuration, the radar reflector of the present invention, when folded, is compactly and reasonably stacked in a half-cut area of one plane to have a small capacity, and a life-saving folded. It can be stored in a raft without difficulty, and in an emergency, anyone can easily and accurately assemble it and fully exhibit the function of the radar reflector.

[Brief description of drawings]

FIG. 1 is a perspective view showing the assembly of a radar reflector embodying the present invention, and FIGS. 2a and 2b are plan views of half-reflecting reflectors ( 1 ) and (1 ') in the first plane, and FIGS. FIG. 4b is a plan view of the semi-cut reflectors (2) and (2 ′) of the second plane, and FIGS. 4a and 4b are semi-cut reflectors ( 1 ) and (1 ′) of the first plane. Explanatory drawing showing assembly sequence, FIG. 4c
5A and 5B are perspective views of the assembled radar reflector, FIGS. 5A and 5B are plan and perspective views showing a state in which the ends of the reflectors on the same plane are connected to each other, and FIGS. 6A and 6B are reflectors on the same plane. FIG. 6 is a perspective view showing a connecting sequence of another embodiment of the means for connecting ends to each other and a partially cutaway plan view of the connected state. 1 ...... 1st plane reflector, 1 , 1 '...... 1st plane half-cut reflector, 2,2' ...... 2nd plane half-cut reflector, 3, 3 '...... 3rd plane Semi-cut reflector, 4 ... tack, 4 '... tack hole, 5,5
...... Slit, 9,9 '... Slit, 10,10' ... Projection, 11 ... Male button, 11 '... Female button.

Claims (1)

[Scope of utility model registration request] Claims: 1. A radar reflector comprising three circular reflectors each having a radar reflecting surface which are orthogonal to each other, wherein the reflectors on each plane are assembled into a substantially half-cut shape. , Overlapping with each other at the center point of the circle of the first plane, making them rotatable relative to each other around the ridge contact along the plane, and forming the reflection plate of the first plane in the expanded state. The reflecting plate is divided into two parts by a line of intersection with the reflecting plate of the first plane, and the slits reaching the center are provided on the lines of intersection of the half-cut second and third plane reflecting plates, respectively, and inserted into each other. Protrusions that are inserted and locked in the slits provided on the intersections of the reflection plates of the first plane are provided and inserted and locked from both sides of the reflection plate of the first plane, and the end portions of the half-cut reflection plates of each plane are connected to each other. A radar reflector comprising means.