JPH0838012A - Backlash prevention of twin shaft reel on casting fishing trick - Google Patents

Abstract

PURPOSE:To enable any anglers to cast a fishing trick easily in a twin shaft reel by providing the reel with a mechanism preventing the backlash on casting the trick. CONSTITUTION:An electromagnetic disk brake mechanism is set on a rotary shaft 2 of a spool of a twin shaft reel to detect the starting torque generated in the spool with a torque sensor 7, and when a fishing trick is cast by means of the electronic control system, a braking torque is generated to relax this starting torque momentarily and control the braking force of the disk brake.

Description

Detailed Description of the Invention

[Industrial field of use] The present invention relates to a backlash prevention method for a double-axis reel equipped with an electromagnetic disc brake mechanism in order to prevent backlash of the spool when a tackle is loaded on the dual-axis reel. Is.

[Prior Art] (a) The conventional drag mechanism in the reel is a device for alleviating the impact on the device and the line thread when the fish is suddenly pulled, and does not prevent backlash. (B) The conventional shockless start mechanism on reels is a mechanism to prevent backlash because it remains in a half-clutch state even when the clutch is disengaged when loaded, but when a tackle is put almost vertically during fishing, etc. It is difficult to reduce the initial rotational torque of the spool when artificial acceleration is applied to the device. (C) It is essential to hold the spool with your fingers to prevent backlash when a long throw is required for surf fishing, etc., and it is extremely training required for those who can not do it. Has the problem of being difficult to handle.
Further, since the rotation start torque value applied to the spool also changes depending on the weight of the weight, it is difficult to prevent backlash with the feeling of a fingertip.

[Problems to be Solved by the Invention] Under these circumstances, an electronic system is adopted to prevent the backlash of the spool at the time of making a tack on a twin-screw reel, so that the braking force of the spool is instantly controlled automatically. , The purpose is that anyone can throw fishing with a dual-axis reel.

[Means for Solving the Problem] and [Operation] (a) Therefore, according to the present invention, the torque sensor detects the rotation start torque generated in the spool by the yarn which is fed from the spool when the tackle is charged. A braking torque that instantly relaxes the starting torque was generated. An electromagnetic disc brake mechanism is provided on the rotating shaft of the spool, the disc is fixed to the rotating shaft of the spool, an electromagnetic coil is integrated with the brake pad, and the brake pad itself is made into an electromagnet.
The disc was sandwiched by brake pads from both sides, and the attraction force of the electromagnet was used as the braking force. (B) The disc and the brake pad are always in contact with each other and can be slid, and the contact surface pressure is minimized. (C) Control of the braking force of the brake was dealt with by changing the magnitude of the current value flowing in the electromagnetic coil. (D) A braking torque is generated which corresponds to the initial rotation starting torque given to the spool by the initial acceleration of the device when the device is loaded and which alleviates this. (E) The device will fly with inertia after the initial acceleration occurs, and the spool will also rotate with inertia after the initial rotation start torque is applied, but it will give an appropriate braking force to the spool rotation. This keeps the line thread and the spool stretched from the spool at all times, and because of the inertial flight of the gimmick, rotational torque is constantly generated in the spool until the gimmick reaches the gimmick. To prevent the occurrence of spool backlash by generating and controlling the braking torque to cope with the above. (F) When throwing with a twin-screw reel, a considerable amount of rotation starting torque is applied to the spool when the tackle is inserted, and it is possible to prevent backlash by pressing the spool with your finger depending on the flight distance of the tackle. Although difficult, it is possible to completely prevent the backlash because the braking force can be instantly generated and controlled by adopting the electromagnetic disc brake mechanism of the present invention.

[Embodiment] (a) A disc (3) is provided on the spool rotating shaft (2), and the brake pad (4) is sandwiched by the disc (3).
And the electromagnetic coil (5) was integrated with the brake pad (4). (B) The disc (3) and the brake pad (4) were always in contact and slidable state, and the contact surface pressure was minimized. (C) The spool rotation shaft (2) is received by the bearing (6),
A torque sensor (7) was provided outside the bearing (6). (D) The torque sensor (7) senses the rotation start torque value given to the spool rotation shaft (2) at the time of adding the device,
The microcontroller performs arithmetic processing and outputs the braking torque value so as to alleviate the rotation starting torque value. (E) The device will fly with inertia after the initial acceleration is generated, and the spool will also rotate with inertia after the initial rotation torque is applied, but the rotation torque given to the spool and the corresponding The control thread is processed in real time, and the thread that is fed from the spool and the spool are kept in a tensioned state. Rotational torque is always generated in the spool until the device touches the water. The output of the braking torque value was processed in real time. At the same time as the device got wet, the tension between the thread and the spool was cut off, and the rotational torque applied to the spool was 0.
And at the same time the braking torque becomes zero. At this point, if you press the spool with your finger, fix the spool, and manually turn on the conventional clutch, the spool will be manually wound up. (F) FIG. 2 is a schematic diagram of a control circuit according to the electronic system of the present invention. The data sensed by the torque sensor (7) is input to the microcontroller (2), arithmetic processing is performed, and the electromagnetic coil (6) is passed through the actuator (3).
Control. In addition, (4) is a switch and (5) is a battery. (G) Further, instead of the torque sensor, the acceleration (impact degree) to the spool is detected by the acceleration sensor, this acceleration (impact degree) is converted into a rotational torque value, and the braking torque is made to correspond to this rotational torque. It is also possible.

[Effects of the Invention] (a) Since backlash does not occur even when used for pitching fishing, the conventional operation of pressing the spool with a finger is not required, and training skill for this is not required. (B) In the conventional spinning reel, the fishing force must have a fairly safe value due to its design, but in the case of the double-spindle reel, a large fishing force can be obtained because the bearing strength largely depends on the bearing strength. . In addition, backlash does not occur even if the ball is thrown away, and the way the thread runs from the spool is the same as the direction of rotation of the spool. (C) When it is used for long-distance throwing, the way the thread goes out is the same as the rotation of the spool, so there is little contact resistance when the thread passes through the guide at the hand of the fishing rod, and little damage to the thread . In addition, since the sliding resistance with the guide is also small, there is little effect on the acceleration when the device is flying.

[Brief description of drawings]

FIG. 1 is a sectional view of a disc brake mechanism.

[Explanation of symbols]

 1 Spool 2 Spool rotating shaft 3 Disc 4 Brake pad 5 Electromagnetic coil 6 Bearing 7 Sensor

FIG. 2 is a schematic diagram of a control circuit of an electronic system.

[Explanation of symbols]

 2 Micro controller 3 Actuator 4 Switch 5 Battery 6 Electromagnetic coil 7 Sensor

Claims (1)

[Claims] 1. An electromagnetic disc brake mechanism is provided on a rotary shaft of a spool, and the disc is fixed to the rotary shaft.
The brake pad and the electromagnetic coil are integrated, and the attraction force of the electromagnet is used as the braking force of the disc. A torque sensor detects the rotation start torque generated in the spool when the device is turned on, and a braking torque that instantly relaxes the rotation start torque is generated. (B) The disc and the brake pad were always in contact with each other and allowed to slide, and the contact surface pressure was minimized. (C) Control of the braking force of the brake was dealt with by changing the magnitude of the current value flowing in the electromagnetic coil.