JPH03262432A - Structure of electric reel for fishing - Google Patents

Abstract

PURPOSE:To obtain the title reel lightened because of small size and thin shape and reduced in heat generation by forming frame and cover of a reel as a magnetic body and providing a rotor, commutator, magnet, etc., in specific places. CONSTITUTION:A spool shaft 26 housed in a spool 28 is rotatably hung and provided in a side frame and a rotor 12 is inserted into a rotor shaft 11 coupled to the spool shaft 26 and a magnet 20 is provided in a magnetic body frame plate 4 having heat conductivity. The rotor and magnet are housed in a hollow formed of a magnetic cover 10 and magnetic body frame plate 4 and coil 13 and commutator 14 are arranged in the rotor.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the structure of a motor for an electric fishing reel.

(Prior Art) In a conventional electric fishing reel, as shown in FIG. There is an electric reel that is designed to be more compact by housing a small, flat motor inside.

The configuration will be described below with reference to the accompanying drawings FIGS. 1 and 3.

A plurality of support columns 30 are installed in parallel between the pair of side frames 1 and 2, and a spool 28 is rotatably mounted on a spool shaft 26 that is mounted between the side frames 1 and 2. The motor 36 is housed in a motor case 38 provided on a motor case mounting plate 4o supported by a pedestal 42. motor shaft 39
includes a pinion gear 41 that meshes with a spur gear 44, which will be described later.
will be established. The spur gear 44 is fitted and fixed to the end of the connecting shaft 46 into which the tapered portion 43 of the spool shaft 26 is fitted.

The connecting shaft 46 is supported by a one-way clutch 48, and the one-way clutch 48 is supported by a bearing holder 50 that is fitted and fixed to the side frame 2 and frame plate 4. A bearing 52 is provided on the outer periphery of the connecting shaft 46, and the tapered portion 43 that fits into the spool shaft 26 allows the connecting shaft 46 connected to the shaft 26 to rotate while being supported by the bearing 52.

When the motor 36 operates, a pinion gear 41 attached to its shaft 39 rotates, and this rotational motion is transmitted to a spur gear 44 meshing with this gear 41, which connects the pinion gear 44 with this gear 44 at its end. Since the spool shaft 26 rotates together with the shaft 46, the spool 28 attached to it rotates.
also rotate in the same direction.

Reference numeral 54 indicates a gap existing between the motor 36 and the frame 4.

(Problem 8 to be solved by the invention) In the conventional example described above, a flat motor was used in order to reduce the size of the electric reel due to its structure, but the motor was Since the mounting plate 40 and the frame 4 are assembled and the motor case 38 is attached to the mounting plate 40, unnecessary gaps such as the reference numeral 54 are created.
Since a gap and a motor case 38 as shown in Fig. 3 exist around the motor 36, the following problems have occurred.

That is, the outer periphery of the motor 36 housed in the motor case 38 is covered with air, which has a rich insulation effect and makes it difficult for heat to be released to the outside.Therefore, the burnout prevention means of the motor 36 is frequently activated. It is not possible to sustain the large torque of the motor continuously for a long time.

Next, the motion transmission structure between the motor 36 and the spool shaft 26 is complicated, and the rotation of the motor 36 is transmitted to the spool shaft 26 via the motor shaft 39, pinion gear 41, spur gear 44, etc. Since the motor 36 including the motor 36 is housed in the motor case 38, the motor unit becomes thick by the thickness of the motor mounting part, which becomes an obstacle to making the fishing reel smaller and thinner.

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned problems and provides a means for achieving this object, in particular, without employing a motor case, instead of a motor case that is placed close to and covering the motor. The cover member attached to the frame is made of a magnetic material and serves as a magnetic path.

(Means for Solving the Problems) Means for achieving the above objects will be described below using the reference numerals used in the embodiments of the present invention.

That is, in an electric fishing reel in which a spool shaft 26 housed in a spool 28 is rotatably installed on the side frames 1 and 2, and the spool shaft 26 is rotatable together with the spool 28 by driving a motor.

A rotor 12 is fitted and fixed to the rotor shaft 11 connected to the spool shaft 26, and a magnet 2 is attached to a thermally conductive magnetic frame plate 4 fixed to the side frame 2 so as to face the rotor 12.
0, and the rotor 12° magnet 20 is connected to the rotor 1.
2. An electric fishing reel characterized in that the rotor 12 is housed in a cavity formed by a magnetic cover lO and a magnetic frame plate 4 provided adjacent to the rotor 12, and the rotor 12 is equipped with a coil 13 and a commutator 14. It is.

(Function) The motor unit of the present invention is mounted directly on the rotor shaft connected to the spool shaft, and the magnet provided on the magnetic frame plate fitted and fixed on the rotor shaft is made to face the coil of the rotor, and the motor unit is mounted directly on the rotor shaft connected to the spool shaft. This configuration eliminates the motor case that houses the motor, and instead provides a magnetic cover member close to the motor to form a magnetic path. In contrast to conventional motors, which required a magnet back yoke and a frame plate, in the present invention, the frame plate is shared as the magnet back yoke.
Since there is no need for a back yoke for the motor and no need for a motor case, the motor unit can be made smaller and thinner, and compared to those that provide rotation to a subunil shaft connected to the rotor via a gear train, The advantage of direct drive is that the structure can be simplified and smooth operation can be achieved.

In addition, a magnet is attached to the thermally conductive frame plate, which helps to quickly conduct and release the heat generated by the drive of the rotor to the magnetic frame plate and the magnetic cover provided close to the rotor. This eliminates defects caused by the heat generation effect of air existing in the gap between the base and the side frame, as in the conventional example.

(Embodiment) An embodiment of the electric fishing reel according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of an electric fishing reel related to the present invention. FIG. 2 is a sectional view showing details of the motor unit section. A magnetic cover member 5 is provided on the outside of the pair of side frames 1 and 2. Assemble IO. A plurality of supports 30 are installed in parallel between the side frames 1 and 2, and the side frame 1 is installed in the gap between the side frames.
．． 2, and a spool 28 that houses the spool shaft 26.
will be established. The motor M is attached to a frame plate 4 made of a magnetic material with high thermal conductivity and fixed to the side frame 2, and is disposed in a gap between the frame plate 4 and a cover lO made of a magnetic material provided close to the motor M. A magnet 20 is attached to a frame plate 4, and a brush holder 18 equipped with a brush 16 is attached inside the magnet 20. A plurality of bearings 22a, 22b, 22C that support one side of the rotor shaft 11 of the motor M and also support the spool shaft 26 are provided near the center of the frame plate 4, and a bearing holder 17 that holds the bearing 22b is attached to the side plate 2.
, and the frame 4. A rotor 12 having a plurality of coils 13 is fitted and fixed on the rotor shaft 11, and a commutator 14 that can come into contact with the brush 16 is also fitted and fixed, and the member 12.14 is attached to the rotor shaft 11. and rotate in the same direction. The bearing 22a, which supports the rotor shaft 11 at its end, is housed in a small blind hole of the cover 10 whose bottom is shaped by pressing or the like. The cover 10 is watertightly fixed to the side frame 2 by adhesive or the like. One end of the rotor shaft 11 is formed into an oval-shaped recess 15, and a spool shaft 26 is formed in this recess 15.
The oval convex portion of the tapered end portion 19 is fitted to the rotor shaft 11.
and the spool shaft 26 are configured to be integrally rotatable. Also, a sun gear (not shown) is provided at the other end of the spool shaft 26.
is fixed to the sun gear, and the spool 28 is rotated via a planetary gear device (not shown) provided on the outer periphery of the sun gear and an internal gear (not shown) fixed to the spool 28. There is. O to make the motor M watertight
Ring 24 is used.

When the motor M is energized via the coil 13 of the motor M,
The rotor 12 forms a magnetic path with the cover member 10, and rotates in a predetermined direction together with the commutator 14 in cooperation with the magnet 20. This rotation is caused by the spool shaft 26 via the rotor shaft 11.
The rotation of the spool 28 is transmitted to the spool 28. Furthermore, heat generated in the motor coil 13 and the like during motor operation is directly conducted and radiated to the frame plate 4 and the magnetic cover 10, which have high thermal conductivity.

(Effects) As described above in detail, according to the present invention, within the cavity formed within the frame and cover, which are the constituent parts of the reel,
Insert and secure the rotor, commutator, etc. in parallel to the rotor shaft,
A magnet is provided on the frame to face the rotor, and the cover member and frame are used as motor magnetic circuit forming members, and are smaller, thinner, and lighter than conventional ones. It has effects such as being able to be measured.

Also, unlike the conventional example, there is no unnecessary air gap between the frame and the cover, so the air generates less heat during motor operation, and the generated heat is efficiently passed through the frame plate and cover, which have high thermal conductivity. There are also effects such as being released.

[Brief explanation of drawings]

FIG. 1 is a route plan view of an embodiment of an electric fishing reel according to the present invention. FIG. 2 is a cross-sectional view of the motor unit shown in FIG. 1. FIG. 3 is a cross-sectional view of the motor unit of a conventional electric fishing reel. M...Motor, 2...Side frame, 4...Frame plate,
DESCRIPTION OF SYMBOLS 10... Cover, 11... Rotor shaft, 12... Rotor, 13... Coil, 14... Commutator, 15...
Oval shaped recess (rotor shaft), 16... brush, 17...
・Bearing holder, 18...Brush holder, 19...Tapered end (spool shirt)), 20...Magnet,
22 & 222b, 22c...Bearing, 26...Spool shaft, 28...Spool, 30...Strut Applicant

Claims (1)

[Scope of Claims] 1. An electric fishing reel in which a spool shaft housed in a spool is rotatably mounted on a side frame, and the spool can be rotated together with the spool shaft by driving a motor, which is fixed to the side frame. A rotor shaft connected to a spool shaft is placed in a cavity formed by a thermally conductive magnetic frame plate and a cover member, and a rotor is fitted and fixed to the rotor shaft and disposed adjacent to the cover member. , and a magnet provided on a magnetic frame plate so as to face the rotor. 2. The electric fishing reel according to claim 1, wherein the cover member is made of a magnetic material. 3. The electric fishing reel according to claim 1 or 2, wherein the rotor has a built-in coil and a commutator.