The present invention relates to a reel system which enables to open/close swimming platforms used particularly in boats and yachts. Background of the Invention

Users utilize platform in order to swim, dive, take boat from the sea and/or unload in particularly ships and yachts. The swimming platform is fixed in some boats and yachts whereas folding platforms are preferred in others so as to provide ease of handling and space saving. Swimming platforms are located on the rear part of boats and yachts.

Hydraulic piston systems or rope systems are used for opening-closing operations of swimming platforms used in the state of the art. These systems can be automatic or manual. The main problem in both automatic and manual systems is synchronization disorder of right and left side during opening the platform which is connected from both sides. The most important reason is that the mechanisms on the right and the left side are activated by separate motors and these motors are not in communication with each other. The platform is broken or wears off early if one side of the platform is forced to go down before the other side. Therefore, providing synchronization of these systems is critical. The fact that the platform is stuck, does not operate may pose a risk for users while operations of taking boat from the sea and/or unloading are carried out or while swimmers go down/get off the platform. Using two motors for opening/closing swimming platforms also leads to waste of energy. Systems used in available technology are not sufficient for overcoming synchronization disorder and balance problems during lowering down the swimming platform. Summary of the Invention

An objective of the present invention is to realize a reel system which prevents synchronization disorder during opening/closing swimming platforms. The system receives power from a single motor in order to prevent synchronization disorder.

Another objective of the present invention is to realize a reel system which prevents the platform from being damaged, broken during opening-closing operations of the platform in order to prevent synchronization and balance disorders.

A further objective of the present invention is to realize a reel system which achieves energy and space saving due to the fact that the power required by the system is provided from a single motor. Detailed Description of the Invention

The "Reel System" realized to fulfill the objectives of the present invention is shown in the figures attached, in which: Figure 1 is a back view of the inventive reel system wherein the platform is open from right.

Figure 2 is a back view of the inventive reel system wherein the platform is open.

Figure 3 is a back view of the inventive reel system wherein the platform is open from left. Figure 4 is a front view of the inventive reel system wherein the platform is open.

Figure 5 is a top view of the inventive reel system wherein the platform is open.

Figure 6 is a side view of the inventive reel system wherein the platform is open.

The components illustrated in the figure are individually numbered, where the numbers refer to the following:

1. Reel system

2. Power source

3. Rope

4. Reel

5. Stabilizer

6. Switch

7. Trigger

8. Stopper

9. Pusher

P. Platform

The inventive reel system (1) essentially comprises: at least one power source (2) which is activated upon the swimming platform (P) is opened and provides the power necessary for the system to operate;

at least one two ropes (3) which hold the swimming platform (P), lowers it down and lifts it up;

at least two reels (4) which release the rope (3) wound to them upon they rotate and/or re-wind the released rope (3) to them; at least one stabilizer (5) which balance the length of the rope on both sides of the platform;

at least one switch (6) which stops operation of the power source (2) when the platform (P) reaches the maximum opening position while the swimming platform (P) is being opened;

at least one trigger (7) which is connected to the rope (3) of the stabilizer (5) and triggers the switch (6) to stop the power source (2) upon it contacts the switch (6);

at least one stopper (8) which stops progress of the rope (3) coming from the stabilizer (5);

at least two pushers (9) which push the platform (P) at the time of first opening the swimming platform (P).

In the inventive reel system (1), the platform (P) is hold by means of the rope (3) from the right and the left sides thereof. Among these ropes (3), a rope (3) on a desired side (right or left) is released or wound by the reel (4) near the power source (2). Whereas the rope (3) holding the platform (P) on the other side is released or wound by the reel (4) in the inner part of the stabilizer (5). First the power source (2) starts operating in order that the swimming platform (P) is opened. The operating power source (2) releases the rope (3) by rotating the reel (4) near thereof. Length of the rope (3) on the other end of the platform (P) is increased upon the reel (4) located in the inner part of the stabilizer (5) rotates, in the meantime, length of the rope (3) is balanced on both sides of the platform (P).

When the side of the platform (P) wherein the power source (2) is located starts opening, a force is generated on the other side thereof (on the side where the trigger (9) is located). The reel (4) in the inner part of the stabilizer (5) rotates by this force and releases the rope (3) which is wound to it. In a preferred embodiment of the invention, the stabilizer (5) has a spring structure. The reel (4) connected to the stabilizer (5) is prevented from rotating more or less than desired by means of this spring structure. The spring structure is powerful as much as that it will not obstruct movement of the platform (P) and prevent the rope (3) from moving too much. In a preferred embodiment of the invention, coil/helical spring is used. The spring inside the stabilizer (5) is stressed as the platform (P) is opened and generates a force retracting the rope (3) and thus, the rope (3) does not become idle. By means of the stabilizer (5) used in the reel system (1) lowering down the swimming platform (P), unbalance problems arising from opening degrees of the ropes (3) are avoided. When the platform (P) reaches the desired opening position, the trigger (7) connected to the rope (3) of the stabilizer (5) contacts the switch (6). The switch

(6) sends signal to the power source (2) in order to stop operating by means of this contact, thus the system operation is stopped. In a preferred embodiment of the invention, the switch (6) is electrical and it sends electric signal to the power source (2) to stop.

In a preferred embodiment of the invention, electric motor is used as power source (2). A single power source is used inside the system and thus synchronization problems possible to occur during opening/closing the platform (P) is avoided and energy saving is provided.

In the inventive reel system (1), there is a stopper (8) which stops progress of the rope (3) on the switch (6) side and a trigger (7) which activates the switch (6). In one embodiment of the invention, the stopper (8) is in the form of a ball and it is hang to fastened to the rope (3) coming from the stabilizer (5). Since the ball formed stopper (8) does not pass through the aperture where the rope (3) passes, it stops the release motion of the rope (3). Thus, the reel (4) inside the stabilizer (5) does not rotate and the descending motion is stopped on that side. The stopper (8) is not only in the form of a ball, it is enough for the cross-sectional area of the stopper (8) to be larger than the cross-sectional area of the rope (3). The trigger

(7) contacts the switch (6) and the power source (2) stops operating. Operation of the reel (4) near the power source (2), which stops operating, and thus descending motion of the platform (P) are stopped and the platform (P) is opened.

In a preferred embodiment of the invention, the stopper (8) is mounted onto the body of the marine vessel using eyebolt.

In one embodiment of the invention, the trigger (7) activating the switch (6) is cylindrical. The rope (3) moved by the reel (4) located near the stabilizer (5) passes through the trigger (7). There is stopper (8) in the way where the rope (3) proceeds to the platform (P) behind the trigger (7). When the stopper (8) stops the movement of the rope (3), the movement of the rope (3) inside the trigger (7) stops and this is transmitted to the switch (6) by means of a signal.

In the inventive reel system (1), the power source (2) operates in the opposite way while the platform (P) is being closed and it is started to wind the ropes (3) upon the reels (4) rotate in the opposite way. When the platform (P) is fully closed, the pusher (9) located inside the system senses that and the power source (2) stops operating. In a preferred embodiment of the invention, a switch becoming activated when the pusher (9) reaches a fully closed position transmits this information to the power source (2). Thus, the power source (2) also stops operating when the pusher (9) is fully closed.

In a preferred embodiment of the invention, the switch to be used for sensing when the pushers (9) are fully closed can be placed to the area where the pushers (9) are located. Differently from this, it is also possible to use the same switch in different positions in order to stop the power source (2) in closed position of the platform (P). For example, a magnetic switch can be used at the point where the rope (3) connected to the power source (2) is fasted to the platform (P) or another electric switch can be used on the stopper (8) part which is close to the reel (4). In a preferred embodiment of the invention, it is possible to place detectors such as sensor, encoder to that area in order to sense that the platform (P) and thus the pistons are fully closed. These sensors can enable the power source (2) to be turned off by transmitting this information received.

The pusher (9) pushes the platform (P) at the time of first opening the swimming platform (P). With this pushing movement, the center of gravity of the platform (P) is slid forwards and the platform (P) starts going down. In a preferred embodiment of the invention, piston is used as pusher (9) and it is mounted onto the body of the marine vessel reciprocally and thus the pusher (9) can push the platform (P) equally from either sides. Possible balance problems are avoided. The rope (3) located inside the system and released upon the power source (2) is activated, is preferably mounted onto the body of the marine vessel by means of eyebolt. The rope (3) moving after the reel (4) in the inner part of the stabilizer (5) rotates is not stable on the body, it is stabilized by the stabilizer (5) while the platform (P) is open. In a preferred embodiment of the invention, the ropes (3) are not in communication with each other.

It is possible to develop a great variety of embodiments of the inventive "Reel System (1)"; it cannot be limited to the examples disclosed herein and it is essentially according to the claims.