WO2023021779A1

WO2023021779A1 - Electric hoisting apparatus

Info

Publication number: WO2023021779A1
Application number: PCT/JP2022/014787
Authority: WO
Inventors: 佑太郎阿部
Original assignee: グローブライド株式会社
Priority date: 2021-08-18
Filing date: 2022-03-28
Publication date: 2023-02-23
Also published as: JP2023027818A

Abstract

Provided is an electric hoisting apparatus with which the size of the entire apparatus can be reduce while ensuring a high reduction ratio in a reduction mechanism that transmits motive point of an electric motor to a rotating body. The electric hoisting apparatus 10 according to the present invention has an electric motor 3 and a rotating body 4 around which a pulling member for pulling an object to be hoisted is wound. The electric hoisting apparatus 10 transmits rotational driving force of the electric motor 3 to the rotating body 4 via a reduction mechanism 44 constituting a cycloid reducer to rotate the rotating body 4, thereby winding the pulling member on the rotating body 4.

Description

electric hoist

Cross-reference This application claims priority from Japanese Patent Application No. 2021-133110 (filed on August 18, 2021), the content of which is incorporated herein by reference in its entirety.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hoisting device that rotates a rotating body by rotational driving of an electric motor and winds a traction member around the rotating body.

Conventional electric hoisting devices, including industrial winches, use the driving force of an electric motor to hoist objects such as bedding, packaging, temporary scaffolding, buildings, and fishing equipment to predetermined positions. commonly known from

Also, in the technical field of fishing reels, electric reels are often used as electric hoisting devices in boat fishing, especially deep-sea fishing.

These various types of electric hoisting devices are at least capable of winding the traction member onto a rotating body (e.g., a drum or spool) by rotating the electric motor in the forward direction, and depending on the application, rotating the electric motor in the reverse direction. The traction member can also be paid out from the rotating body by .

By the way, in the electric hoisting device, the power of the electric motor is generally transmitted to the rotating body via the speed reduction mechanism. In this case, the electric motor requires sufficient power to rotationally drive the rotating body to wind the pulling member that pulls the object to be pulled, and therefore has a size sufficient to output such power. Therefore, it may occupy a large installation space even in the device. On the other hand, in the speed reduction mechanism that transmits the power of the electric motor to the rotating body, for example, the electric hoisting device is installed in a drone to hoist a large heavy object, or the electric hoisting device is configured as a fishing reel for hoisting a large fish. In such cases, it is necessary to obtain a large traction torque in the rotating body, so there is a tendency for a high speed reduction ratio to be required.

As described above, when a speed reduction mechanism is required to have a high speed reduction ratio, a planetary gear mechanism may be used as the speed reduction mechanism, as disclosed in Patent Document 1, for example.

In addition, as described above, if the electric motor occupies a large installation space in the device, it is necessary to efficiently secure the installation space for the remaining parts other than the motor within the device. In the case of being mounted on a moving body such as an electric reel or configured as a portable electric hoisting device typified by an electric reel, miniaturization is also required, so for example, as disclosed in Patent Document 2 In addition, it is conceivable to use a hollow motor having a through-hole as the electric motor so that parts can be inserted into the through-hole to improve the layout.

JP-A-2003-284474 JP 2017-035041 A

However, as disclosed in Patent Document 1, when a planetary gear mechanism is used as a reduction mechanism to obtain a high reduction ratio, there is a limit to the reduction ratio of a single planetary gear. is required, and the size of the entire electric hoisting device is increased accordingly.

On the other hand, as disclosed in Patent Document 2, when using a hollow electric motor, it is necessary to set the diameter of the hollow shaft of the electric motor to a certain extent large in order to ensure its strength. Since the outer diameter of the motor inevitably increases, the planetary gear mechanism itself connected to the hollow shaft of the motor in a power-transmissible manner also increases accordingly. Specifically, if the electric motor is made hollow while maintaining the reduction ratio, the diameter of the sun gear of the planetary gear also increases in conjunction with the increase in the diameter of the motor hollow shaft, and the diameter of the internal gear also increases in proportion to the increase. As a result, the planetary gear mechanism itself becomes large as a whole. That is, when a planetary gear mechanism is used as a reduction mechanism, it is difficult to reduce the size of the entire device even if the electric motor is made hollow to improve the layout.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides an electric hoist apparatus that can reduce the overall size of the apparatus while ensuring a high speed reduction ratio of a speed reduction mechanism that transmits the power of an electric motor to a rotating body. intended to provide

In order to achieve the above object, the present invention has a rotating body around which a pulling member for pulling an object to be hoisted is wound, and an electric motor. An electric hoisting device that winds a traction member on the rotating body by transmitting force to the rotating body to rotate the rotating body, wherein the speed reduction mechanism constitutes a cycloid speed reducer. and

Therefore, according to the above configuration, since the speed reduction mechanism constitutes a cycloidal speed reducer, the speed reduction mechanism alone can ensure a high speed reduction ratio. That is, unlike the case where a planetary gear mechanism is used as a speed reduction mechanism, there is no need to install a plurality of speed reduction mechanisms to obtain a high reduction ratio. A high speed reduction ratio can be obtained without increasing the size of the entire device in the axial direction by arranging a plurality of gears along the .

In addition, if a cycloid speed reducer is used as a speed reduction mechanism in this way, even if a hollow electric motor is used, the size of the speed reduction mechanism as a whole does not have to be increased. In other words, the cycloid reducer can avoid the aforementioned problem of an increase in the diameter of the gear due to the increase in the diameter of the hollow shaft of the motor, as in the planetary gear mechanism. Thus, the size of the entire device can be reduced.

Further, in the above configuration, the electric motor has a hollow shape having a through hole extending coaxially with the rotation axis of the rotor, and the members constituting the electric hoisting device are inserted into the through hole. It is preferable that According to this, since the through-hole of the electric motor can be effectively used as a space for arranging members, and the layout can be improved, the size of the entire device can be reduced. In addition to making effective use of through-holes in this way (ensuring high layout flexibility), the use of a cycloid reducer also avoids the need to increase the size of the reducer due to hollowing out the motor, resulting in a more compact overall device. can contribute to That is, the combination of the cycloid speed reducer and the hollow motor makes it possible to simultaneously and effectively achieve the two objectives of a high speed reduction ratio and miniaturization of the device.

In addition, according to such a configuration, sufficient power is required to rotationally drive the rotating body to wind up the traction member that pulls the object to be hoisted (object to be hauled), which occupies a large installation space in the device. The electric motor obtained is provided with a through hole extending coaxially with the rotating shaft of the rotor, and a member constituting the electric hoisting device is inserted into the through hole. Even when the components of the device positioned on both sides are mechanically or electrically connected to each other, the connection path is divided by the electric motor by arranging the connection element that performs the connection in the through hole as the member. You can avoid situations like this. As a result, the connection path does not have to detour the electric motor to a large extent, so there is no need to secure a space for such a detour path, and the associated increase in size of the device can be prevented. Also, by efficiently and effectively using the through-holes, it is possible to reduce the size of the device. Here, the "component" refers to a component of the electric hoisting device that is positioned on one side or the other side of the electric motor and is not inserted through the through hole of the electric motor, and the "member" refers to the Among the elements that constitute the hoisting device, the element that is inserted through the through hole of the electric motor (for example, the connection element described above).

Further, if a through hole is provided in the electric motor and the through hole can be used as a space for arranging members, it is possible to avoid a situation in which the constituent elements themselves of the device are separated by the electric motor. can be advantageously set functionally and structurally, and problems such as increased volume and increased torque loss can be avoided (structurally and functionally optimized).

In addition, in the above configuration, the through hole of the electric motor causes a mechanical force (particularly a , driving force) or electrical signals, efficient and lean force transmission and signal transmission are possible, and the device can be functionally and structurally optimized. It can also contribute to miniaturization. Here, the term "electrical signal" means a broad concept that includes all electrical flows, including electrical energy such as current, voltage, and power, and electrical detection signals.

In addition, in the above configuration, the arrangement form of the electric motor with respect to the rotating body can be set arbitrarily. For example, the electric motor may be arranged in the rotating body, but the present invention can be particularly beneficial with respect to device miniaturization when the electric motor is arranged axially side by side with the rotating body. In the above configuration, the through-hole may be formed in a different manner depending on the structural form of the electric motor. Advantageous.

Further, in the above configuration, the speed reducer has a hollow form having a through hole extending coaxially with an input member thereof that receives rotational driving force from the electric motor, and the through hole includes the electric hoisting device. It is preferable that a member constituting the is inserted and arranged. Such a configuration is useful when the hollow electric motor and the speed reducer are unitized and used as a geared motor. In this case, it is preferable that a through-hole similar to the through-hole of the electric motor is provided in the speed reducer coaxially so that the geared motor has a hollow shape. By arranging a member for mechanically or electrically connecting components in the hollow portion of the geared motor, it is possible to avoid a situation where the connection path is cut off by the geared motor. Of course, the effect is the same even if the form of the geared motor unit is not formed. By connecting the components through the electric motor and the speed reducer, it is possible to save the space of the entire device (optimization of the structure), which is beneficial.

Further, in the above configuration, the electric motor has a hollow shape having a through hole extending coaxially with the rotation axis of the rotor, and the speed reducer is an input member that receives rotational driving force from the electric motor. and the rotating body has a through hole extending coaxially with the rotating shaft, and the speed reduction mechanism is between the electric motor and the rotating body. and the through hole of the speed reduction mechanism coaxially communicates the through hole of the rotating body and the through hole of the electric motor, the rotating body, the speed reducing mechanism, and It is preferable that a member constituting the electric hoisting device is inserted through the through hole of each of the electric motors. In this way, if the through-holes that are arranged in parallel with each other in the axial direction communicate with each other and are coaxially arranged, the member (for example, the connecting element described above) can be inserted through these through-holes. , the concentricity of each component can be easily ensured, and the positional relationship between the components can also be ensured with high accuracy. Further, since the through hole of the cycloidal reduction gear and the through hole of the electric motor are coaxial, the rotational driving force of the electric motor can be efficiently transmitted to the cycloidal reduction gear.

Further, in the above configuration, the electric hoisting device constitutes an electric fishing reel, and the electric fishing reel has a power transmission state in which the power of the electric motor can be transmitted to the rotating body, and the electric motor A transmission rod that has a rotatably operable lever member for switching between a power cutoff state in which power transmission from to the rotating body is cut off and a transmission rod that transmits a rotating operation force of the lever member to the rotating body side, It is preferable that members constituting the electric hoisting device are arranged to be inserted through the respective through holes of the rotating body, the speed reduction mechanism, and the electric motor.

In the case of an electric fishing reel, for example, in a drag mechanism that applies a braking force to the rotation of a spool that is a rotating body, the braking mechanism is generally provided on a handle shaft separate from the rotation shaft of the motor (star drag, etc.), even if the electric motor is hollow and a cycloid reducer is adopted, there is a limit to the improvement of the layout, and it is not possible to efficiently reduce the size of the entire device. If all the rotors are hollow and the through holes are coaxially arranged to communicate with each other, it is possible to secure a space for arranging the members in a straight line. It is also possible to form the transmission rod that transmits power to the rotating body as a single member extending coaxially with the rotation axis of the rotating body and arrange it in the space. The structure can be simplified by arranging in a straight line (coaxially with the rotation axis of the motor), and the transmission rod can also efficiently transmit a large force.

Further, in the above configuration, the reduction mechanism has an output member that reduces rotation input from the electric motor and outputs the rotation, and the rotation is achieved by axial movement of the transmission rod accompanying the rotation operation of the lever member. The body is moved in the axial direction and pressed against the friction plates that rotate integrally with the output member, and the frictional force in the rotational direction generated in the friction plates according to the magnitude of the pressing force causes the electric motor to rotate the rotating body. It is preferred to transmit drive power. According to this, it is possible to configure a drag mechanism adapted to the high speed reduction ratio of the cycloid speed reducer while the transmission rod realizes miniaturization of the device. In other words, if a high reduction ratio is obtained by adopting a cycloid reduction gear, the transmission torque will also increase, and accordingly the drag mechanism will also need to have a high capacity. To increase the capacity of a drag mechanism by arranging it as a single member extending coaxially with a rotating shaft to enhance the layout property, and as a result, to obtain a drag mechanism suitable for a high reduction ratio of a cycloid reducer. will be able to

According to the present invention, it is possible to obtain an electric hoist that can reduce the size of the entire device while ensuring a high reduction ratio of the speed reduction mechanism that transmits the power of the electric motor to the rotating body.

1 is a perspective view showing the appearance of an electric hoisting device according to an embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view showing the main configuration of the electric hoisting device of FIG. 1; FIG. 2 is a perspective view of a cycloid speed reducer that constitutes a speed reduction mechanism of the electric hoist of FIG. 1; (a) is a front view of the cycloid reduction gear of FIG. 3, (b) is a side view of the cycloid reduction gear of FIG. 4(a) is a cross-sectional view taken along line AA of FIG. 4(a), and FIG. 4(b) is a cross-sectional view taken along line BB of FIG. 4(b).

Hereinafter, the electric hoisting device according to the present invention will be described by taking an electric fishing reel as an example with reference to the drawings. Needless to say, the present invention can be applied to all electric hoisting devices that use the driving force of a motor to hoist up and unload objects such as bedding, packages, temporary scaffolds, buildings, and fishing tools. In addition, the same reference numerals are given to constituent elements common to a plurality of drawings, and explanations of constituent elements that have already been explained will be omitted.

1 and 2 show an electric fishing reel (hereinafter simply referred to as an electric reel) 10 as an electric hoisting device according to one embodiment of the present invention. Here, FIG. 1 is a perspective view showing the appearance of the electric reel 10 according to this embodiment, and FIG. 2 is a cross-sectional view showing the configuration of main parts of the electric reel 10 according to this embodiment.

In the figure, reference numeral 1 is a frame, reference numeral 2 is a side plate attached to one side of the frame 1 so as to close the opening of the frame 1, and the frame 1 and the side plate 2 are connected to the electric reel 1. forming the exterior of the The side plate 2 serves to position an electric motor 3 and a spool 4, which will be described later.

As shown, the electric reel 10 has a spool 4 as a rotating body around which a fishing line as a pulling member is wound, and an electric motor 3. When the electric motor 3 is rotationally driven, the spool 4 is rotated to rotate the spool. 4 to take up the fishing line. When the electric motor 3 is involved in the winding drive in this way, the electric motor 3 has sufficient power to drive the rotating spool 4 so as to wind up an object to be wound (an object to be towed) such as a fish or a tackle. In short, it is large enough to output such power, and thus occupies a large installation space within the electric reel 10 as shown in FIG. (possibly occupying the axial space of The electric motor 3 may have any structural form, but in this embodiment, it has the same structural form as the motor disclosed in Japanese Utility Model Registration No. 3228782, for example.

Specifically, the electric motor 3 has a stator 3a made of a soft magnetic material supported coaxially with the spool 4 by the side plate 2, and the stator 3a extends axially toward the spool 4 side. It has a plurality of supports 3aa, 3ab arranged to form two concentric rings together. Of these supports 3aa and 3ab, each of the inner supports 3aa forming an inner annular body supports a corresponding annular first coil 3b and an outer support 3aa forming an outer annular body. A corresponding annular second coil 3c is supported on each of the bodies 3ab. In this case, each of the

coils

3b and 3c serves to excite the stator 3a, and is supported in such a manner that the inner peripheral surfaces thereof are fitted to the outer peripheral surfaces of the corresponding supports 3aa and 3ab.

The electric motor 3 has a rotor 3d rotatably supported by the stator 3a. The rotor 3d is formed by an outer annular body formed by an outer support 3ab of the stator 3a and an inner support 3aa of the stator 3a. and an outer annular portion 3da extending axially so as to enter an annular space between the outer annular portion 3da and the inner annular portion 3a extending axially inside an inner support 3aa of the stator 3a through ball bearings 3g and 3h. and an inner annular portion 3db that is rotatably supported on the . In this case, the outer annular portion 3da supports and fixes the

magnets

3e and 3f, and the inner annular portion 3db forms the through hole 9 of the electric motor 3 extending coaxially with the rotation axis O of the rotor 3d. That is, in this embodiment, the electric motor 3 has a hollow shape having a through hole 9 extending coaxially with the rotation axis O of the rotor 3d.

It should be noted that the electric motor 3 may have other structural forms as long as it has a hollow form having a through hole 9, and may have a structural form such as a brush motor or a stepping motor, for example. .

The spool 4 as a rotating body arranged coaxially with the electric motor 3 is rotatably supported via ball bearings 5 and 6 . In this case, the inner ring sides of the ball bearings 5 and 6 are fitted and supported by a transmission rod 36, which will be described later. The spool 4 also has a through hole 4a that extends through it coaxially with the rotation axis O, and this through hole 4a is coaxially positioned in communication with the through hole 9 of the electric motor 3. there is

Further, to such a spool 4, as shown in the figure, rotational driving force is transmitted from the electric motor 3 through a speed reduction mechanism 44 arranged axially between the electric motor 3 and the spool 4. It has become. In this case, the speed reduction mechanism 44 is a known hollow cycloid speed reducer as disclosed, for example, in Japanese Patent Application Laid-Open No. 2018-189237. The rotation input from the electric motor 3 is decelerated and output to the output member 45 .

Specifically, as shown in FIGS. 3 to 5, the cycloid reducer 44 of the present embodiment is an input member (rotating shaft O) 44g, a ring-shaped cycloidal disk 44f fitted eccentrically rotatably on the outer circumference of the input member 44g via balls 44i held by a retainer 44d and having external teeth on the outer circumference, and a cycloidal disk 44g. An annular internal tooth ring 44c, which is positioned on the outer periphery of the cycloidal disk 44f, is non-rotatably supported by the side plate 2, and has internal teeth on its inner periphery that mesh with the external teeth of the cycloidal disk 44f, engages with the cycloidal disk 44f. and an output member 45 that rotates with the rotation of the cycloidal disk 44f.

In this case, the input member 44g is fitted to the inner peripheral surface of the cycloidal disk 44f and supported by a support ring 44e interposed between the cycloidal disk 44f and the internal toothed ring 44c. In addition, the output member 45 has a plurality of projections 45a provided at predetermined angular intervals along the outer circumference, which are engaged with holes 44j provided corresponding to the cycloidal disc 44f. As each protrusion 45a revolves within the hole 44j with the eccentric rotation, it receives a rotational force from the cycloid disk 44f. Both sides (input/output side) of the inner toothed ring 44c are covered with an upper cover 44k and a lower cover 44b, and a balance weight 44h is held on the inner peripheral surface of the input member 44g. Further, retainers 44d are provided between the

covers

44b, 44k and the output member 45 and the input member 44g, and between the output member 45 and the input member 44g and the inner tooth ring 44c (support ring 44e). A ball 44i is interposed. A through hole 44a of the reduction mechanism 44 is formed by inner holes of the annular output member 45 and the annular input member 44g.

Therefore, according to the above configuration, when the input member 44g rotates about the rotation axis O once, the cycloid disk 44f fitted to the eccentric cylinder 44ga of the input member 44g rotates about the rotation axis O once. , the outer teeth 44fa provided on the outer periphery of the cycloidal disk 44f ride over the inner teeth 44ca of the inner toothed ring 44c by one tooth (the cycloidal disk 44f rotates about the rotation axis O by one tooth of the inner teeth 44ca). As a result, the rotation input from the electric motor 3 via the rotor output portion 3dc is decelerated to 1/the number of teeth of the internal teeth 44ca. The rotation decelerated to the cycloidal disk 44f is transmitted to the output member 45 by the hole 44j of the cycloidal disk 44f pushing the projecting portion 45a in the direction of rotation about the rotation axis O. By configuring the hole 44j of the cycloidal disk 44f so as to revolve around the center axis of the projecting portion 45a, the revolving motion of the cycloidal disk 44f about the rotation axis O is not transmitted to the output member 45. ing.

With this operating principle, the reduction ratio of the cycloid can be obtained by dividing the number of teeth of the internal teeth 44ca of the internal tooth ring 44c by the number of teeth of the internal teeth 44ca of the internal tooth ring 44c. , the reduction ratio is 1/30 (the cycloidal reduction ratio can be set from about 10 to 100).

In the case of a conventional planetary gear reducer, it is necessary to place the sun gear mechanism in the center, so if the planetary gear mechanism has a hollow structure, an opening larger than the diameter of the sun gear cannot be provided. Also, in order to obtain a high reduction ratio in the planetary gear mechanism, it is necessary to reduce the number of teeth of the sun gear (reduce the diameter). Therefore, in the planetary gear mechanism, it is difficult to achieve both a high speed reduction ratio and a hollow shape. In addition, the planetary gear mechanism usually has a speed reduction ratio lower than 1/10 in one stage. On the other hand, in the cycloid reduction gear of this embodiment, the reduction ratio is determined by the number of teeth of the internal gear, and even if the reduction ratio is large, there is no need to reduce the diameter of the centrally arranged input member. Therefore, it is possible to achieve both a high reduction ratio (which alone can provide a higher reduction ratio than a single planetary gear) and a hollow structure.

In FIG. 2, reference numeral 33 is a spool side friction plate fixed to the spool 4, and reference numeral 34 is positioned opposite the spool side friction plate 33 and between the spool side friction plate 33. It is a drive-side friction plate that transmits the rotational driving force of the electric motor 3 to the spool 4 by the generated frictional force in the rotational direction. It is a drag force adjustment knob for adjusting the rotational frictional force generated between the plate 33 and the drive-side friction plate 34 (the frictional force is hereinafter referred to as the drag force).

Further, the through hole 9 of the electric motor 3, the through hole 44a of the speed reduction mechanism 44, and the through hole 4a of the spool 4 are members constituting the electric reel 10, and apply a braking force to the rotation of the spool 4. This transmission rod 36 is pivotally supported by the frame 1 and the side plate 2, is inserted into the transmission rod 36, and has its side surface fitted to the frame 1. Movement in the rotational direction is regulated by a pin 37 that As a result, when the degree of tightening of the drag force adjusting knob 35 screwed to the transmission rod 36 is changed, the transmission rod 36 moves in the axial direction accordingly.

A transmission pin 38 is press-fitted and fixed to the transmission rod 36 , and the transmission pin 38 moves the spool 4 via an elastic member 39 arranged coaxially with the transmission rod 36 by axial movement of the transmission rod 36 . The inner ring side of the ball bearing 5 that is rotatably supported can be pressed in the axial direction. As a result, a pushing force corresponding to the position of the transmission rod 36 is applied to the spool 4, and this pushing force is applied to the spool side friction plate 33 fixed to the spool 4 and the drive side friction plate 34 driven by the electric motor 3. The pressing force is between

A support rod 49 is coaxially fitted on the outer periphery of the transmission rod 36 . The support rod 49 rotates in synchronism with the drive-side friction plate 34 and has a reaction force equivalent to the axial pressing force applied from the spool-side friction plate 33 toward the drive-side friction plate 34 . is designed to generate In this case, one end side of the support rod 49 axially presses the inner ring side of the ball bearing 40 that rotatably supports the support rod 49, and the axial pressing force from the spool 4 side is the ball. It is supported by the side plate 2 via bearings 40 .

A lever member 41 is rotatably supported by the side plate 2, and the lever member 41 switches the spool-side friction plate 33 and the drive-side friction plate 34 between a contact state and a non-contact state. It's becoming A cam member 42 is fixed to the lever member 41, and an inclined surface (not shown) is formed at a contact portion of the cam member 42 with a cam counterpart member 43 facing the cam member 42. As shown in FIG. This inclined surface converts the amount of movement of the lever member 41 in the rotational direction into the axial movement of the cam counterpart member 43 . to move in the direction Further, the cam partner member 43 is in contact with the drag force adjusting knob 35 , and the amount of movement of the cam partner member 43 in the axial direction becomes the amount of movement of the drag force adjusting knob 35 as it is. As described above, the drag force adjustment knob 35 is connected to the spool 4 through the transmission rod 36, the transmission pin 38, and the elastic member 39, so that the spool 4 is rotated by rotating the lever member 41. It moves in the axial direction, so that the lever member 41 can switch the spool-side friction plate 33 and the drive-side friction plate 34 between the contact state and the non-contact state.

Further, in this embodiment, the drive-side friction plate 34 rotates integrally with the output member 45 of the deceleration mechanism 44 , so that the turning operation of the lever member 41 transfers the power of the electric motor 3 to the spool 4 . It is possible to switch between a power transmission state in which power can be transmitted and a power cutoff state in which power transmission from the electric motor 3 to the spool 4 is cut off. To be able to adjust the drag force in In other words, the force in the axial direction of the spool generated by the adjusting mechanism composed of the lever member 41, the cam mating member 43, the cam member 42, and the drag force adjusting knob 35 is transmitted through the transmission rod 36, the spool 4, the drive side friction plate 34, and the support. It is transmitted in the order of the bar 36 and the side plate 2 . Such a group of parts constitutes a side plate unit, and the pressing force transmission path is optimized so as to be completed within the unit. As a result, the influence of the pressing force on the parts constituting other units is eliminated, and an improvement in reliability can be expected. Also, by optimizing the configuration, it is possible to reduce the size of the reel as a whole.

As described above, according to the present embodiment, the speed reduction mechanism 44 constitutes a cycloid speed reducer, so that the speed reduction mechanism 44 alone can ensure a high speed reduction ratio. That is, unlike the case where a planetary gear mechanism is used as a speed reduction mechanism, it is not necessary to install a plurality of speed reduction mechanisms to obtain a high speed reduction ratio. Obtainable.

Further, if a cycloid speed reducer is used as the speed reduction mechanism 44 in this way, even if the hollow electric motor 3 is used as in this embodiment, the size of the speed reduction mechanism 44 as a whole does not have to be increased. In other words, the cycloid reducer does not cause the above-mentioned problem of an increase in gear diameter due to an increase in the diameter of the motor hollow shaft unlike the planetary gear mechanism. As a result, it is possible to reduce the size of the electric reel 10 as a whole.

In this embodiment, a transmission rod 36 for transmitting a pressing force for generating a drag force and a support rod 49 for receiving the pressing force are provided in the through hole 9 of the electric motor 3 and the through hole 44a of the speed reduction mechanism 44. are placed through. That is, in the present embodiment, the through-hole 9 constitutes the electric reel 10 and is located on one side of the electric motor 3 , and the spool 4 is a component that constitutes the electric reel 10 and is located on the other side of the electric motor 3 . A transmission path for transmitting mechanical force is formed between the lever member 41 and the lever member 41, which is a positioned component. A connection element that connects the spool 4 and the lever member 41, specifically, a transmission rod 36 and a support rod 49 that constitute a drag mechanism, are arranged to pass therethrough. As a result, it is possible to avoid the disconnection of the connection path by the electric motor 3, and to achieve miniaturization and optimization of the functions of the electric reel 10 as a whole.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the spirit of the present invention. For example, in the embodiments described above, the configuration of the cycloid speed reducer is not limited to the configuration described above. Further, in the above-described embodiment, the pulling member is a fishing line, but when the electric hoisting device constitutes a winch or the like, the pulling member may be a metal wire or the like. Further, part or all of the above-described embodiments may be combined without departing from the gist of the present invention, or part of the configuration may be omitted from one of the above-described embodiments. good too.

10 electric reel (electric hoisting device)
3 electric motor 3d rotor 4 spool (rotating body)
4a through hole 9 through hole 34 friction plate 36 transmission rod 41 lever member 44 reduction mechanism 44a through hole 45 output member

Claims

A rotating body around which a pulling member for pulling an object to be hoisted is wound, and an electric motor. An electric hoisting device that winds a traction member on the rotating body by rotating it,
An electric hoist, wherein the speed reduction mechanism constitutes a cycloid speed reducer.
The electric motor has a hollow form having a through hole extending coaxially with the rotation axis of the rotor, and a member constituting the electric hoisting device is inserted through the through hole. The electric hoisting device according to claim 1.
The speed reducer has a hollow form having a through hole extending coaxially with an input member that receives rotational driving force from the electric motor, and a member constituting the electric hoisting device is inserted through the through hole. 3. The electric hoisting device according to claim 1 or 2, wherein the electric hoisting device is arranged.
The electric motor has a hollow shape with a through hole extending coaxially with the rotation axis of the rotor, and the speed reducer extends coaxially with its input member that receives rotational driving force from the electric motor. The rotary body has a through hole extending coaxially with its rotary shaft, and the speed reduction mechanism is axially arranged between the electric motor and the rotary body. and the through hole of the speed reduction mechanism coaxially communicates the through hole of the rotating body and the through hole of the electric motor, and the rotating body, the speed reducing mechanism, and the electric motor are connected to each other. 2. The electric hoisting device according to claim 1, wherein a member constituting the electric hoisting device is inserted into the through hole of the electric hoisting device.
The electric hoisting device constitutes an electric fishing reel, and the electric fishing reel has a power transmission state in which power of the electric motor can be transmitted to the rotating body, A transmission rod that has a lever member that can be rotated to switch between a power cutoff state in which power transmission is cut off and that transmits a turning operation force of the lever member to the rotating body constitutes the electric hoisting device. 5. The electric hoisting device according to claim 4, wherein the member is inserted through each of the through-holes of the rotating body, the speed reduction mechanism, and the electric motor.
The deceleration mechanism has an output member that decelerates and outputs the rotation input from the electric motor, and the rotating body moves in the axial direction due to the axial movement of the transmission rod accompanying the rotation operation of the lever member. and a friction plate that rotates integrally with the output member, and a frictional force in the rotational direction generated in the friction plate according to the magnitude of the pressing force transmits a rotational driving force from the electric motor to the rotating body. The electric hoisting device according to claim 5, characterized by: