Anti-collision transmission mechanism of spinning wheel type fishing reel

Abstract

An anti-collision transmission mechanism of a spinning wheel type fishing reel comprises a small gear, a transmission gear meshed with the small gear, a main shaft and a sliding block arranged on the main shaft, an eccentric column is fixed to the end face, facing the sliding block, of the transmission gear, and one end of the eccentric column is inserted into a sliding groove of the sliding block. The sliding block can be restrained on the main shaft in an axial sliding mode relative to the main shaft, meanwhile, a first elastic piece acting on the sliding block is arranged so that the sliding block can have the trend of moving towards the tail end of the main shaft all the time, and when the rocker arm rotates in the normal take-up direction, the first elastic piece can enable the sliding block to be fixed relative to the main shaft. During normal transmission take-up, the sliding block can still drive the main shaft to do axial reciprocating motion through the first elastic part, and once the sliding block is subjected to external force (such as generated during collision) which enables the sliding block and the main shaft to rotate in the direction opposite to the take-up direction, the sliding block and the main shaft slide relatively, so that the first elastic part crumples to absorb energy, and therefore damage to parts such as a transmission gear and a pinion is avoided, and the service life of the transmission gear is prolonged. Therefore, the purpose of prolonging the service life of the fishing reel is achieved.

Description

Technical Field

[0001] This utility model relates to a fishing reel, specifically a spindle-type fishing reel with an anti-collision transmission mechanism. Background Technology

[0002] A spinning reel is a type of fishing tackle that includes a main body, a main shaft, a gear rod, a gear disc, a line housing, and a reel. To facilitate line feeding on the spinning reel, a transmission mechanism is installed within the main body. This transmission mechanism typically consists of a gear disc, a gear rod, a main shaft, a pinion, a drive gear, and a slider. The gear disc and pinion are coaxially mounted and driven by a rocker arm. This driving force is divided into two outputs. One output is the meshing of the gear disc and the gear rod, which is mounted on the main body. The line housing is mounted on the gear rod, forming the first transmission mechanism, which allows the line housing to rotate. The second transmission mechanism converts the rotational motion of the main shaft into axial reciprocating motion through the meshing of a pinion and a transmission gear. An eccentric column is fixed to the transmission gear, with its other end located in a groove in a slider. The slider is fixed to the main shaft, and the reel is mounted at the front end of the main shaft. The rotational motion of the transmission gear is converted into axial reciprocating motion of the main shaft through the interaction of the eccentric column and the slider, which in turn drives the reel to reciprocate axially. In other words, the rotational motion of the line housing, combined with the axial reciprocating motion of the reel, achieves uniform line laying on the spinning reel. Such a transmission mechanism is disclosed in documents such as Chinese Patent Application Publication No. CN108990931A and Chinese Patent Grant Announcement No. CN210841243U.

[0003] However, during use, it was discovered that because the spinning reel's line housing and gear can only rotate in one direction (a one-way bearing is installed between the gear and the main body, rotating along with the rocker arm during line reeling), when the spinning reel is subjected to external impact, such as falling to the ground, the impact force is fed back to the space between the gear and the gear disc, and between the pinion and the drive gear, causing them to break, especially the pinion and drive gear. The existing transmission mechanism lacks anti-collision measures, directly rendering the spinning reel unusable. Therefore, further improvements are needed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an anti-collision transmission mechanism for a spinning wheel-type fishing reel, which makes the spinning wheel-type fishing reel have a longer service life, in light of the current state of the technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an anti-collision transmission mechanism for a spinning reel, comprising a small gear, a transmission gear, a main shaft for mounting the reel, and a slider mounted on the main shaft, wherein the small gear can rotate together with the winding direction of the rocker arm of the spinning reel, the transmission gear has transmission teeth on its circumference that mesh with the small gear, and an eccentric column is fixed on the end face of the transmission gear facing the slider, one end of the eccentric column is inserted into the slide groove of the slider, so that the rotational motion of the transmission gear can be converted into the axial reciprocating motion of the main shaft, characterized in that: the slider can be axially slidably constrained on the main shaft relative to the main shaft, and a first elastic element acting on the slider is also configured to make the slider always have a tendency to move towards the tail end of the main shaft, and when the rocker arm rotates in the normal winding direction, the first elastic element can fix the slider relative to the main shaft.

[0006] In the above scheme, preferably, the first elastic element is a compression spring sleeved on the main shaft, with one end of the compression spring abutting against the main shaft and the other end abutting against the slider;

[0007] Alternatively, the first elastic element may be a butterfly-shaped washer sleeved on the main shaft and abutting against the slider.

[0008] To facilitate assembly and prevent the slider from detaching from the spindle, a stop is provided on the spindle to abut against the slider. This stop and the first elastic element are located on opposite sides of the slider. The stop can be a retaining ring secured to the spindle or a radial pin inserted into the spindle.

[0009] To prevent relative rotation between the slider and the main shaft, the cross-section of the section where the main shaft and the slider mate is designed as a non-circular structure, and the slider is designed with a corresponding non-circular shaft hole.

[0010] To further improve the energy absorption of collapse under external force, the transmission gear is further improved by including a first transmission wheel with the aforementioned transmission teeth and a second transmission wheel with the aforementioned eccentric column, which are coaxially mounted. The opposite end faces of the first and second transmission wheels are provided with mutually meshing one-way teeth, and a second elastic element is configured to ensure that the one-way teeth on the first and second transmission wheels always have a tendency to mesh with each other. The one-way teeth allow the first and second transmission wheels to mesh and rotate together with the winding direction of the rocker arm, and when the external force forces the first transmission wheel to rotate in the opposite direction of winding, the one-way teeth allow the first transmission wheel to rotate relative to the second transmission wheel.

[0011] In the above-described further improved scheme, preferably, the second elastic element is a wave-shaped washer or a spring, arranged on the same side as the eccentric column and sleeved and confined on the shaft. The wave-shaped washer or spring can better meet the elasticity required for engagement or disengagement between the first and second transmission wheels, and is easy to install.

[0012] To facilitate the positioning of the aforementioned wave-shaped gasket or spring, one end of the shaft is fixed to the inner wall of the housing, and the other end is threaded with a fastener that abuts against the wave-shaped gasket or spring.

[0013] To facilitate coaxial installation, a bushing extends from the middle of the second drive wheel toward the first drive wheel for the shaft to pass through. This bushing can pass through the shaft hole of the first drive wheel.

[0014] In the above-mentioned further improved scheme, it is further preferred that the meshing surface of each of the unidirectional teeth is composed of radially distributed vertical surfaces, inclined surfaces arranged circumferentially and gradually rising towards the vertical surface side, and a plane connecting the top of the vertical surface and the top of the inclined surface, and adjacent unidirectional teeth have a connecting surface that meshes with the plane on the corresponding unidirectional tooth.

[0015] Compared with the prior art, the slider of this utility model can slide axially relative to the main shaft, and a first elastic element with suitable rigidity is cleverly added to the main shaft. During normal transmission and winding, the slider can still drive the main shaft to reciprocate axially through the first elastic element. However, once it is subjected to an external force that makes them rotate in the opposite direction of winding (such as when it is impacted), relative sliding will occur between the slider and the main shaft, so that the first elastic element collapses and absorbs energy.

[0016] In particular, the aforementioned transmission gears are made into a split first transmission wheel and second transmission wheel. Normal transmission is achieved by utilizing the transmission teeth on the first transmission wheel to mesh with the pinion, and the eccentric column on the second transmission wheel to cooperate with the sliding groove on the slider. At the same time, the one-way teeth between the first and second transmission wheels allow them to rotate together with the rocker arm to achieve the winding function during normal winding. However, once they are subjected to an external force that causes them to rotate in the opposite direction of winding (such as during an impact), the first and second transmission wheels can rotate relative to each other, so that the external force is further absorbed by the relative rotation of the first and second transmission wheels, thereby better protecting the transmission components such as the transmission gears and pinion.

[0017] Therefore, this utility model can effectively avoid damage to transmission components such as transmission gears and pinions, thereby extending the service life of fishing reels. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention installed at the tail of a spinning reel (with the housing removed);

[0019] Figure 2 for Figure 1 An enlarged schematic diagram of part I in the diagram;

[0020] Figure 3 for Figure 2 A schematic diagram of local decomposition;

[0021] Figure 4 for Figure 3 A three-dimensional diagram from another direction;

[0022] Figure 5 for Figure 2 A three-dimensional sectional view;

[0023] Figure 6 for Figure 2 Another three-dimensional sectional view. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In the following description of the embodiments, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "axial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0026] like Figure 1 The image shows a spinning reel, comprising a housing, a reel 10, a line housing 20, and an anti-collision transmission mechanism. The housing includes a main body and a main cover fixed to the side of the main body's tail with screws. Since the housing uses existing technology, it has been omitted from all figures to clearly show the internal anti-collision transmission mechanism. The anti-collision transmission mechanism is located at the tail of the spinning reel's housing. Figures 2 to 6As shown, it includes a pinion 1, a transmission gear 2, a main shaft 3, a slider 4, and an eccentric column 5. The pinion 1, like in the prior art, is mounted on a spindle 7 along with a gear disc 6. The spindle 7 is supported by bearings on the main body and main cover, and a rocker arm 8 is mounted at one end of the spindle 7. That is, rotating the rocker arm 8 drives the spindle 7, gear disc 6, and pinion 1 to rotate together. The transmission gear 2 has transmission teeth on its circumference that mesh with the pinion. An eccentric column 5 is fixed to the end face of the transmission gear 2 facing the slider 4, and the end of the eccentric column is inserted into the groove 41 of the slider 4. The slider 4 is mounted on the main shaft 3. The gear disc 6 is located on one side of a rack 9 and meshes with the rack 9. The rack 9 is fitted onto the main shaft 3 and supported within the main body by bearings. A spool 10 is mounted on the main shaft 3, and a wire housing 20 is mounted on the rack 9. When the rocker arm 8 is rotated, it can drive the wire wheel 10 to reciprocate along the axis of the main shaft 3 via the pinion 1, transmission gear 2, eccentric column 5, slider 4, and main shaft 3. At the same time, it drives the wire shell 20 to rotate via the gear plate 6 and gear rod 9. This transmission path is the same as the existing technology and will not be explained in detail.

[0027] In this embodiment, the main improvement lies in that the slider 4 is axially slidably constrained to the main shaft 3 (i.e., not fixed to the main shaft by screws as in the prior art). A first elastic element acting on the slider 4 is also provided. In the figure, this first elastic element is a compression spring 01 (or a butterfly washer) sleeved on the main shaft 3. One end of the compression spring 01 abuts against the main shaft (in the figure, the main shaft has a shoulder 31, and one end of the compression spring 01 abuts against this shoulder 31; alternatively, a radially arranged limiting pin or the like can be used to replace the shoulder 31), and the other end abuts against the slider 4, ensuring that the slider 4 always tends to move towards the tail end of the main shaft 3. Furthermore, to prevent the slider 4 from detaching from the main shaft 3, a stop is provided at the tail end of the main shaft 3 that abuts against one side of the slider 4. That is, the stop and the compression spring 01 abut against the two sides of the slider, respectively. Specifically, the stop can be a retaining ring 02 clamped on the main shaft 3 or a radial pin inserted into the main shaft 3. During normal take-up, the slider 4 needs to reciprocate axially with the main shaft 3. Therefore, the first elastic element needs to have a certain rigidity. That is, it needs to ensure that when the rocker arm 8 rotates in the normal take-up direction, the first elastic element can keep the slider 4 fixed relative to the main shaft 3, i.e., it needs to tightly abut the slider 4 against the stop. However, once subjected to an external impact, if the external force causes the transmission gears and other transmission components to tend to rotate in the opposite direction of take-up, the slider 4 can overcome the force of the first elastic element and move axially on the main shaft 3. This compresses the first elastic element and absorbs energy, thereby effectively protecting the transmission gears, pinions, and other transmission components from damage.

[0028] During operation, to prevent the slider 4 from rotating relative to the main shaft 3, the cross-section of the section where the main shaft 3 and the slider 4 mate is designed as a non-circular structure. The slider 4 has a corresponding non-circular shaft hole 42. This non-circular structure can be a polygonal structure; in the figure, a flat shaft structure is formed by machining a plane 32 on the main shaft. Alternatively, the slider 4 and the main shaft 3 can be connected by a keyway structure, allowing them to slide relative to each other axially when needed, while remaining fixed together circumferentially.

[0029] To further absorb the force of external forces, this embodiment is further improved by designing the transmission gear 2 as a split structure. The transmission gear includes a first transmission wheel 21 and a second transmission wheel 22 mounted coaxially. The periphery of the first transmission wheel 21 is provided with transmission teeth that mesh with the pinion 1. The eccentric column 5 is provided on the end face of the second transmission wheel 22. That is, the first transmission wheel 21 is used to mesh with the pinion 1, and the eccentric column 5 on the second transmission wheel 22 is used to cooperate with the slide groove 41 on the slider 4. Meanwhile, on the opposite end faces of the first transmission wheel 21 and the second transmission wheel 22, there are also meshing one-way teeth 23, and a second elastic element 04 is configured. Specifically, the second elastic element can be a wave-shaped washer (or a spring), arranged on the same side as the eccentric column and sleeved and limited on the shaft 03. In the figure, one end of the shaft 03 is fixed to the inner wall of the main body, and the other end is threaded with a fastener 05 that abuts against the wave-shaped washer (or spring). The fastener 05 can be a bolt. At this time, the other end of the shaft 03 has a threaded hole. Of course, the fastener can also be a nut. At this time, the other end of the shaft is designed as a screw. The nut is threadedly connected to the screw to achieve the purpose of pressing the wave-shaped washer (or spring), thereby allowing the wave-shaped washer (or spring) to abut against the second transmission wheel 22, so that the one-way teeth on the first and second transmission wheels always have a tendency to mesh with each other.

[0030] Meanwhile, considering the convenience of assembly and the reliability of transmission, the middle part of the second transmission wheel 22 extends toward the first transmission wheel to form a bushing 221 through which the shaft 03 passes. The bushing 221 can pass through the shaft hole 211 of the first transmission wheel 21.

[0031] The aforementioned one-way tooth 23 needs to meet the following conditions: it should allow the first drive wheel 21 and the second drive wheel 22 to mesh and rotate together with the winding direction of the rocker arm, thus achieving normal winding function; when an external force forces the first drive wheel 21 to rotate against the winding direction, the one-way tooth 23 should allow the first drive wheel 21 to rotate relative to the second drive wheel 22. During this process, the first drive wheel 21 needs to overcome the force of the second elastic element 04. Preferably, the meshing surface of the one-way tooth 23 consists of radially distributed vertical surfaces 231, circumferentially arranged inclined surfaces 232 that gradually rise towards the vertical surfaces, and a plane 233 connecting the top of the vertical surfaces and the top of the inclined surfaces. Adjacent one-way teeth have a connecting surface 234 that meshes with the plane on the corresponding one-way tooth. Thus, during normal transmission, the vertical surfaces 231 on the corresponding one-way teeth 23 mesh with each other, allowing the first drive wheel 21 and the second drive wheel 22 to rotate together in only one direction. When subjected to a reverse force, due to the inclined contact, the first transmission wheel 21 will overcome the force of the second elastic element 04, climb up the inclined plane and rotate relative to the second transmission wheel 22. That is, slippage will occur between the two, thereby absorbing the impact force of the external force, achieving the purpose of collapsing and absorbing energy, avoiding damage to the various components in the transmission mechanism due to large impact forces, and ensuring that the spinning reel can still work normally after the impact.

Claims

1. A kind of anti-collision transmission mechanism of spinning reel fishing reel, including the pinion (1) being installed in the shell of spinning reel fishing reel, transmission gear (2) and the main shaft (3) for installing reel (10) and the slider (4) being arranged on the main shaft (3), wherein the pinion (1) can rotate with the take-up direction of the rocker arm (8) of spinning reel fishing reel, the transmission gear is provided with the transmission tooth that is engaged with the pinion on the circumferential edge, the end surface of the transmission gear (2) towards slider (4) is fixed with eccentric column (5), one end of the eccentric column is inserted into the sliding slot (41) of slider, so that the rotary motion of transmission gear (2) can be converted into the axial reciprocating motion of main shaft (3), it is characterized by: The slider (4) is axially slidably constrained on the main shaft (3), and is further provided with a first elastic member acting on the slider to make the slider always have a tendency to move towards the tail end of the main shaft, and the first elastic member can also fix the slider (4) relative to the main shaft (3) when the rocker arm rotates in the normal take-up direction.

2. A drag-reducing transmission mechanism for a spinning reel as defined in claim 1, wherein: The first elastic member is a compression spring (01) sleeved on the main shaft (3), one end of the compression spring (01) abuts against the main shaft (3), and the other end abuts against the slider (4). Alternatively, the first elastic member is a butterfly gasket sleeved on the main shaft (3) and abutting against the slider (4).

3. The anti-jamming drive mechanism of a spinning reel fishing reel according to claim 1 wherein: The main shaft (3) is further provided with a stopper abutting against the slider (4), and the stopper and the first elastic member are located on the two sides of the slider (4) respectively.

4. The anti-jamming drive mechanism of a spinning reel fishing reel according to claim 3 wherein: The stopper is a snap ring (02) clamped on the main shaft (3) or a radial pin inserted into the main shaft (3).

5. The anti-jamming drive mechanism of a spinning reel fishing reel according to claim 1 wherein: The cross section of the local segment of the main shaft (3) cooperating with the slider (4) is designed as a non-circular structure, and a non-circular shaft hole (42) corresponding to the non-circular structure is designed on the slider.

6. A drag reduction mechanism for a spinning reel according to any one of claims 1 to 5, wherein: The transmission gear (2) comprises a coaxial shaft (03) installed with a first transmission wheel (21) provided with the transmission teeth and a second transmission wheel (22) provided with the eccentric column (5), and a one-way tooth (23) is arranged on the opposite end faces of the first transmission wheel (21) and the second transmission wheel (22) to be engaged with each other, and a second elastic member (04) is arranged to make the one-way teeth on the first transmission wheel (21) and the second transmission wheel (22) always have a tendency to engage with each other, and the one-way tooth (23) can allow the first transmission wheel (21) and the second transmission wheel (22) to rotate together with the take-up direction of the rocker arm (8), and when an external force forces the first transmission wheel (21) to rotate against the take-up direction, the one-way tooth (23) can allow the first transmission wheel (21) to rotate relative to the second transmission wheel (22).

7. A drag reducing drive mechanism for a spinning reel as defined in claim 6 wherein: The second elastic member (04) is a wave-shaped gasket or spring, which is arranged on the same side of the eccentric column (5) and sleeved on the shaft (03).

8. The anti-jamming drive mechanism of a spinning reel fishing reel according to claim 7 wherein: One end of the shaft (03) is fixed to the inner wall of the housing, and the other end is threadedly connected with a fastener (05) abutting against the wave-shaped gasket or spring.

9. The anti-jamming drive mechanism of a spinning reel fishing reel according to claim 6 wherein: The second transmission wheel (22) extends towards the first transmission wheel (21) to form an axle sleeve (221) for the shaft (03) to pass through, and the axle sleeve (221) can pass through the shaft hole (211) of the first transmission wheel.

10. The anti-jamming drive mechanism of a spinning reel fishing reel according to claim 6 wherein: The engagement surface of each one-way tooth (23) is composed of a radial distribution of upright surfaces (231), a circumferentially arranged inclined surface (232) gradually rising towards the upright surface side, and a flat surface (233) connected between the top of the upright surface and the top of the inclined surface, and the adjacent one-way teeth have a connecting surface (234) engaged with the flat surface on the corresponding one-way tooth.

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