TWM633598U - Hand-pull clutch controller for remote-controlled car - Google Patents

Abstract

A remote control car clutch hand controller, which mainly includes an active unit, a passive unit and a transmission shaft installed on one side of the engine, wherein the active unit is provided with a shell, inside the shell is provided with a bearing and an elastic The rope shaft is wound with a pull rope, and the passive unit is provided with a seat body combined between the engine and the opening of the casing, a bushing is arranged in the center of the seat body, a bearing is installed on the side of the casing inside the bushing, and a bearing is installed on the other side of the bushing. There is a shaft sleeve for braking the engine, the shaft sleeve has a spiral guide groove, and one end of the drive shaft is fitted with the rope shaft to form a co-moving shaft that is coupled to the bearing of the housing, and the other end is radially There is a positioning pin protrudingly, and the bearing that fits on the base is used as the axis of support during rotation. At the same time, the positioning pin is guided in the spiral guide groove of the bushing, and through the guidance of the spiral guide groove, the bushing is simultaneously rotated. It has the clutch function of forward and backward displacement. Under normal conditions, it is not restrained by the main shaft of the engine. Only when it is actuated, it will protrude to drive the piston connecting rod to start the engine.

Description

Remote control car clutch hand controller

This creation is about a remote control car with a starter to start the engine, especially a remote control car clutch that can be started manually and after the engine is started, the starting structure of the starter can be separated from the main shaft of the engine so that the output power of the engine will not be lost. Pull the controller.

According to the general remote control car engine, its starting method can be roughly divided into electric auxiliary or manual rope starter to start the engine. The components connected to the engine inside the starter are still interlocked by the running of the engine, causing the power output by the engine to be restrained and the power to be reduced. Therefore, a starter with a clutch structure is designed so that it can be separated from the engine shaft after the engine is started. , to avoid engine power loss, it is necessary.

For example, the case B of the Republic of China (Taiwan) Patent Certificate No. M478534 "Hand Pull Starter with Clutch Structure" applied for by the author in the previous case mainly includes an active part (1) and a passive part (2), wherein the active part (1) A rolling member (13) with a pull cord (14) wound around it is installed in the housing portion (12) of the casing (11), and the other end of the pull rope (14) is passed through the casing (11) The outside is combined with the handle (15), so that the user can pull the scroll piece (13) to rotate by holding the handle (15), and one side of the scroll piece (13) is provided to make the scroll After the member (13) is rolled, it provides the elastic body (16) with the force of reverse rewinding, and a rotating shaft (17) is assembled at the axis of the rolling member (13), and a prominent positioning is provided on the surface of the rotating shaft (17) Pin (18), and shaft (17) at the same time One end is pierced with a rolling piece (13) and pivotally arranged in the inner wall groove (111) of the housing (11), as the supporting axis when the rolling piece (13) and the rotating shaft (17) rotate; the passive part includes There is a cover (21) covering the accommodating part (12) of the casing (11), a shaft sleeve (23) provided with a detent pin (231) and a spiral groove (232) passing through the cover (21) Among them, the shaft sleeve (23) is movably sleeved on the rotating shaft (17), and the positioning pin (18) is guided in the spiral groove (232), so that the shaft sleeve (23) can be moved to the position of the latch when it is driven to rotate. The movable pin (231) can brake the position of the engine (3). In order to assist in starting the engine (3), and after the engine is started (3), the detent pin (231) is separated from the detent position of the detent engine (3), so that the power output by the engine (3) is not received by the shaft sleeve (23) The pinning causes power loss. However, although this manual starter can use the helical groove of the shaft sleeve to move back and forth when rotating to form a clutch effect, after the engine is started, the starting structure for braking the engine can be separated from the main shaft of the engine, so as to avoid engine power. loss. However, since the scroll member and the rotating shaft in the active part of the starter that drive the rotational displacement of the passive part bushing are only pivoted at the end of the groove on the inner wall of the housing through the rotating shaft as the supporting axis during rotation, it is activated by hand operation. When starting the device, its stability and smoothness are not enough.

In order to improve the above deficiencies, please refer to the previous application of the creator of the Republic of China (Taiwan) Patent Certificate No. M483817 "Improvement of the structure of the hand starter with clutch structure" B case, this additional creation is based on the previous application No. M478534 The innovative structure of Patent No. 1 is further improved in design, mainly because a bearing (27) is specially added at the joint surface of the active part (1) and the passive part (2) in the previous case, which can be pivoted by the rotating shaft (17) as the center of the rotating support shaft. , and an O-ring (28) with an oil seal effect. However, although this addition can use the bearing (27) as a stable support shaft during rotation, the engine (3) can start more smoothly and smoothly, and it can also use the O-ring (28) to achieve the effect of sealing to prevent the engine from The oil gas in the chamber is brought into the starter, resulting in oil leakage. But in actual use, when the user pulls the pull cord of the active part to drive the scroll member and the rotating shaft to rotate, not only will a huge lateral force be generated, but the scroll member will also be deflected when the pull cord is wound. Pendulum function, because this creation is only active There is a single bearing structure design at the joint surface of the drive part and the passive part; therefore, after a period of use, the pivoting end of the rotating shaft and the groove on the inner wall of the housing will also be excessively worn and affect the stability and smoothness of the entire starter. speed, it may even cause a stuck situation to occur.

Furthermore, when the user releases the pull cord, the scrolling member will quickly form reverse scrolling due to the elastic force, and at the same time drive the rotating shaft to guide the bushing to move inward and retract to the original position, and the overall rebound force is quite large and Fast, and because the shaft sleeve is installed next to the bearing, it is very easy to be displaced by the powerful impact of the retraction of the shaft sleeve, which makes the overall assembly gap relatively larger, resulting in faster wear of the rotating shaft, which in turn affects the stability of the starter And fluency is still not ideal. It can be seen that these conventional structures really need to be recreated and improved to solve the deficiencies in the use of the above structures.

Yes, based on the concept of continuous improvement and innovation of engine-assisted starters, the author of this creation is based on years of practical experience in the design and development of this product, as well as active research and development thinking, and through countless actual design experiments, this creation is achieved. The production of this invention is more applicable to yacht engine or lawn mower engine or generator engine etc.

The purpose of this creation is to provide a remote control car clutch hand controller, which uses a more stable and precise bearing structure design to make its operation more stable and smooth, so that the performance of the overall structure of the starter is more perfect and improved.

In order to achieve the above-mentioned purpose, this creation is configured on one side of the engine, including an active unit, a passive unit and a transmission shaft, wherein the active unit includes a housing with an inner chamber, and a housing at the bottom of the chamber. There is a bearing, and an elastic winding rope shaft is installed on the outside of the bearing. There is a fitting hole in the center of the rope shaft, and a pull rope is wound around the outside. The unit is provided with a seat combined between the engine and the opening of the housing There is a bushing in the center of the seat body, a bearing is installed inside the bushing on the side of the housing, and a bushing is pivoted on the other side to protrude into the engine, and a catch is provided at the radial direction of the protruding end The moving pin is used to brake the engine, and the other end is provided with a spiral guide groove on the peripheral ring; one end of the transmission shaft is fitted with the rope shaft of the driving unit to form a co-moving shaft that is connected to the bearing of the housing, and the other end is connected to the bearing of the casing. The bearing of the base of the passive unit is used as the supporting axis during rotation, and is sleeved on the shaft sleeve at the same time, and a positioning pin is protruded in the radial direction to guide and engage in the spiral guide groove, so that the shaft sleeve can be rotated by the drive shaft. It has the clutch function of forward and backward displacement. Under normal conditions, it will not be restrained by the main shaft of the engine, which will cause power loss. Only when it is actuated, the shaft sleeve will be driven to rotate and protrude to the position where the engine can be braked, and then drive the piston connecting rod to start. The engine runs.

Other features and specific embodiments of this creation can be further understood in the following detailed description with accompanying drawings.

10:Active unit

11: shell

111: Containment room

12: Bearing

13: rope shaft

131: Fitting hole

132: Groove

14: coil spring

15: pull rope

16: pull handle

17: shell cover

171: Through hole

18: Locking piece

19: screw

20: passive unit

21: seat body

22: Bushing

221: retaining ring

222: ring groove

23: Bearing

24: shaft sleeve

241: Detent pin

242: spiral guide groove

243: positioning groove

25: O-ring

26: spring

27: steel ball

28: screw

30: drive shaft

30a: the first shaft section

30b: Second shaft section

31: Card System Department

32: Locating pin

33: screw hole

34: screw teeth

40: engine

41: Crank

42:Spindle

43: Eccentric shaft

Figure 1 is an exploded schematic diagram of the structure of this creation.

Figure 2 is a three-dimensional assembly diagram of this creation.

Figure 3 is a schematic diagram of the three-dimensional appearance of this creation.

Figure 4 is a partial sectional view of this creation.

Figure 5 is a partially enlarged sectional view of this creation.

Please refer to Figures 1 to 5, the clutch hand controller of this invention is configured on one side of the engine 40, the engine 40 can be a remote control car engine, a yacht engine, a lawn mower engine or a generator engine, etc., and this invention The preferred embodiment of creation mainly includes a driving unit 10 , a passive unit 20 and a transmission shaft 30 .

The active unit 10 mentioned above is provided with a housing 11, the housing 11 has a hollow chamber 111 inside, the bottom of the chamber 111 is provided with a bearing 12, the outside of the bearing 12 is provided with a rope shaft 13, and the rope The shaft 13 is installed in the housing 11 by elastically winding a coil spring 14 on one side to provide a reverse rolling recovery force after rolling, and the rope shaft 13 has a fitting hole 131 in the center, There is a groove 132 on the outside to wind a drawstring 15 of a predetermined length. The open end of the drawstring 15 is passed through the outside of the casing 11 and combined with a T-shaped pull handle 16, so that the user can use the hand to pull The handle 16 is convenient for pulling the stay cord 15 and then the rope shaft 13 is rolled.

In addition, in this preferred embodiment, the casing 11 of the active unit 10 is further provided with a casing cover 17 at the opening of the chamber 111, and a through hole is provided at the corresponding position of the fitting hole 131 of the central rope shaft 13 of the casing cover 17. hole 171, and use a locking member 18 to pass through and lock the opening of the case cover 17, and then package each component inside the casing 11, thereby assembling into a single module component (as shown in FIG. 2 ).

The passive unit 20 is provided with a seat body 21 combined between the engine 40 and the casing 11. During implementation, the seat body 21 can be locked on one side of the engine 40 by passing through several screws 28, and then by another Several screws 19 lock the opening of the housing 11 on the other side of the base 21 , so that the invention can be arranged on one side of the engine 40 . The seat body 21 is provided with a wear-resistant bushing 22 in the center, a bearing 23 is installed on the joint side of the casing 11 inside the bushing 22, and a bushing 24 that can protrude to the inside of the engine 40 is pivoted on the other side. The protruding end of the shaft sleeve 24 is provided with a detent pin 241 in the radial direction, and the other end is provided with a spiral guide groove 242 on the surface of the shaft sleeve 24 with a predetermined length.

In addition, in this preferred embodiment, the bushing 22 is further provided with a retaining ring 221 at the inner edge of the bearing 23 installation side, which can form a stop for the positioning of the bearing 23, and the inner wall of the retaining ring 221 is installed on the bearing 23. Correspondingly, an annular groove 222 is further provided. When assembling, the O-ring 25 is embedded in the ring groove 222 (as shown in Fig. 5), and the setting of the O-ring 25 is used to achieve a sealing effect to prevent The oil and gas in the engine room is brought into the controller, resulting in oil leakage.

One end of the transmission shaft 30 is engaged in the bearing 12 of the casing 11 of the active unit 10, and a clamping portion 31 is provided at a position corresponding to the fitting hole 131 of the rope shaft 13 for joint movement. In this embodiment, the fitting The hole 131 is in the shape of an inner hexagonal hole to have six connected sides, and the transmission shaft 30 has a hexagonal clamping portion 31 matching the shape of the fitting hole 131, so that the hexagonal clamping portion 31 is embedded in the hexagonal hole. The fitting hole 131 enables the transmission shaft 30 to be assembled on the rope shaft 13 and rotated by the rope shaft 13, and the other end of the transmission shaft 30 is coupled to the bearing 23 of the base body 21 of the passive unit 20, and is sleeved on the Inside the shaft sleeve 24, there is a positioning pin 32 protruding in the radial direction, which guides in the helical guide groove 242, and through the rotation of the transmission shaft 30, the shaft sleeve 24 moves along the guidance of the helical guide groove 242 to form a It has a clutch function structure of rotation and forward and backward movement, which is used to brake the shaft sleeve 24 to move axially forward and backward on the transmission shaft 30, and make the shaft sleeve 24 rotate with the transmission shaft 30, because the positioning pin 32 is in the spiral guide groove 242 on the lead screw so that the stop pin 241 can move to the position of the stop engine 40.

Furthermore, the bushing 24 of the passive unit 20 of the present invention is provided with several positioning grooves 243 on the surface, and a spring 26 is installed on the shaft diameter section of the seat body 21, and a positioning steel ball 27 is pressed by the spring 26 to make the positioning The steel ball 27 remains elastic and snaps into the positioning groove 243; accordingly, the shaft sleeve 24 can move axially forward and backward on the transmission shaft 30 and the shaft sleeve 24 can maintain a certain position during the axial retraction process after the engine starts running. To prevent the shaft sleeve 24 from being shaken out and moving forward due to the running vibration of the engine.

In addition, in this preferred embodiment, in order to make the assembly of the transmission shaft 30 more convenient, the transmission shaft 30 is divided into a first shaft section 30a and a second shaft section 30b which are interlocked and combined. The clamping portion 31 is formed at the locking end of the first shaft section 30a, and a screw hole 33 is provided in the center, while the positioning pin 32 is arranged at the rear end of the second shaft section 30b, and the front end of the shaft section is provided with Corresponding thread 34; during assembly, the positioning pin 32 of the second shaft section 30b and the helical guide groove 242 of the sleeve 24 can be guided together Afterwards, the end of the thread 34 is passed through the bearing 23, and the first shaft section 30a is locked and engaged, so that the transmission shaft 30 can be pre-axially engaged in the bearing 23 of the base body 21, so as to be assembled into another single module component. Finally, the module is installed on one side of the engine 40, and the rope shaft 13 fitting hole 131 of the active unit 10 module is engaged with the clamping part 31 of the transmission shaft 30, and then the casing is connected through several screws 19. 11 is installed on the seat body 21 to complete the assembly (as shown in Figure 2).

Please refer to the 3rd and 4th figures, the structure of the engine 40 of the remote control car of this invention usually has a crank 41 connected to the cylinder piston in the engine room, and an eccentric shaft provided by a main shaft 42 is linked by one end of the crank 41 43. When wanting to start the engine 40, the user can pull the stay cord 15 by the pull handle 16, so that the rope shaft 13 and the transmission shaft 30 rotate simultaneously, and the positioning pin 32 will also rotate thereupon when the transmission shaft 30 rotates, because The positioning pin 32 is guided in the helical guide groove 242 of the shaft sleeve 24, so the positioning pin 32 can rotate along the helical guide groove 242 to form a guide screw, so that the positioning pin 32 maintains a fixed point during the movement process. Rotation makes the shaft sleeve 24 move axially due to the guide screw action of the helical guide groove 242, and because one side of the positioning pin 32 abuts against the helical guide groove 242, it will generate a braking force on the side wall of the helical guide groove 242 The axle sleeve 24 is moved on the power transmission shaft 30 with the braking axle sleeve 24, and the axle sleeve 24 can be moved close to the direction of the engine 40, so that the axle sleeve 24 can be moved to the point where the detent pin 241 provided on it can actuate the engine 40. The position of the eccentric shaft 43.

Because pull handle 16 is pulled out again, when causing stay cord 15 to drive drive shaft 30 to rotate, when positioning pin 32 fixed-point rotations move along the helical guide groove 242 lower side and be stuck in the closed end of helical guide groove 242 lower side (i.e. lower dead end). point), the shaft sleeve 24 will stop moving axially and keep the shaft sleeve 24 rotating at the bottom dead center. Accordingly, the protruding length of the front end of the bushing 24 can be controlled to ensure that the stop pin 241 can stop the engine 40 and prevent the bushing 24 from overhanging. And when the extension length of the shaft sleeve 24 is fixed, the locking force is also generated by the positioning pin 32 on the closed end of the lower side of the spiral guide groove 242, so that the braking shaft sleeve 24 can follow the transmission. The drive shaft 30 rotates synchronously, so that the eccentric shaft 43 of the engine 40 can be driven by the detent pin 241, and the main shaft 42 of the engine 40 can be rotated, and then the engine 40 can be started.

After the engine 40 is started and the user no longer pulls the pull cord 15, the rope shaft 13 is elastically restored by the coil spring 14 on one side, so that the rope shaft 13 and the drive shaft 30 rotate in reverse synchronously, and the positioning pin 32 also It will move upward in the opposite direction from the original position stuck on the closed end of the lower side of the spiral guide groove 242 (that is, the bottom dead point) to the position of the upper closed end of the spiral guide groove 242 (that is, the upper dead point), and then press the aforementioned positioning pin 32 1. The actuation principle of the spiral guide groove 242 rotating and moving back and forth. Similarly, the positioning pin 32 can stop the sleeve 24 from moving in the opposite direction on the transmission shaft 30 (that is, move in a direction away from the engine 40), so that the stop pin 241 Breaking away from the detent position of the detent engine 40 to remove the detent state can make the power output by the engine 40 not be restrained by the starting structure of the present invention, resulting in power loss.

After the actual test of this creation, the power output by the engine can be increased by about 15% horsepower compared with the engine without the starting clutch function. At the same time, the engine is more fuel-efficient due to the rotation factor of the no-load starter component on the rotation.

Moreover, bearings (12, 23) are respectively installed on the housing 11 of the active unit 10 and the seat body 21 of the passive unit 20 of the present invention, so that the transmission shaft 30 can cooperate as the axis of rotation when supporting, not only in operation It is more stable and smooth, and at the same time, it can reduce the wear between components and increase the service life of the product.

In addition, in this invention, a retaining ring 221 is provided on the side edge of the bushing 22 where the bearing 23 of the seat body 21 is installed, which can drive the transmission shaft 30 to guide the bushing 24 to quickly retract and move inward when the rope shaft 13 is forced to return by the elastic force. And when the shaft sleeve 24 moves inward and produces a strong impact force and hits the bearing 23, a stopper effect can be formed, so that the bearing 23 will not be displaced, thereby affecting the assembly precision of each component.

To sum up, the remote control car clutch hand controller design of this creation, in addition to its starting The structure can be conveniently clutched and separated from the engine, and the smooth, smooth and high-precision manual starting structure allows users to start the engine without the need for starting electric equipment and additional power. As far as the engine starting device is concerned, the overall design is innovative, and the improvement in function is obvious, and it has indeed met the requirements for a new patent application. I would like to file a patent application according to the law. I would like to invite your review committee to take the time to review it carefully and hope that it will be approved as soon as possible. Patents are used to encourage creation, which is really convenient.

The above is only a preferred embodiment of this creation, and should not limit the scope of implementation of this creation; therefore, all simple equivalent changes and modifications made according to the patent scope of this creation and the content of the creation instructions, All should still fall within the scope covered by this creation patent.

10:Active unit

11: shell

111: Containment room

12: Bearing

13: rope shaft

131: Fitting hole

132: Groove

14: coil spring

15: pull rope

16: pull handle

17: shell cover

20: passive unit

21: seat body

22: Bushing

221: retaining ring

222: ring groove

23: Bearing

24: shaft sleeve

241: Detent pin

242: spiral guide groove

243: positioning groove

25: O-ring

26: spring

27: steel ball

30: drive shaft

30a: the first shaft section

30b: Second shaft section

31: Card System Department

32: Locating pin

33: screw hole

34: screw teeth

40: engine

41: Crank

42:Spindle

43: Eccentric shaft

Claims (7)

A remote control car clutch hand controller, which is assembled on one side of the engine, includes: An active unit includes a housing with a chamber inside the housing, a bearing at the bottom of the chamber, an elastic winding rope shaft installed outside the bearing, a fitting hole in the center of the rope shaft, and an outer winding There is a pull rope, and the open end of the pull rope is passed to the outside of the shell to connect with a pull handle; A passive unit, including a seat body combined between the engine and the opening of the housing, a bushing is provided in the center of the seat body, a bearing is installed on the joint side of the bushing, and a protruding shaft is pivoted on the other side. A shaft sleeve extending to the inside of the engine, the shaft sleeve is provided with a detent pin at the radial position of the protruding end, and the other end is provided with a spiral guide groove at the peripheral ring; A transmission shaft, one end of which is shafted in the bearing of the active unit housing, and a clamping part is provided at the corresponding position of the rope shaft fitting hole for joint movement, and the other end is shafted in the bearing of the passive unit seat , and sleeved inside the sleeve, and a positioning pin protruding from the radial direction is guided in the spiral guide groove; In this way, when the transmission shaft is driven by the rope shaft to rotate, the shaft sleeve is driven to rotate and at the same time, it is guided by the spiral guide groove to generate a displacement, so that the stop pin at the protruding end is locked on the engine main shaft pivoted by the piston connecting rod. On the eccentric column, and then start the engine running. As the remote control car clutch hand controller described in item 1 of the scope of the patent application, the rope shaft of the active unit is installed in the housing in an elastically coiled manner using a coil spring. As the remote control car clutch hand controller described in Item 1 of the scope of the patent application, the housing of the active unit is further provided with a shell cover with a through hole at the opening. As the remote control car clutch hand controller described in item 1 of the scope of the patent application, wherein the base of the passive unit is provided with a stop ring at the inner edge of the bushing on the side of the casing for bearing stop. The remote control car clutch hand controller as described in any one of the 1st or 4th items of the scope of patent application, wherein the The bushing of the passive unit base is provided with an annular groove on the inner wall of the bearing device, and an O-ring is embedded in the inner wall of the annular groove. As the remote control car clutch hand controller described in item 1 of the scope of the patent application, the shaft sleeve of the passive unit is provided with several positioning grooves on the surface ring, and a spring is installed on the shaft diameter section of the seat body, and the spring is used to resist Press a positioning steel ball so that the positioning steel ball remains elastically stuck in the positioning groove. According to the remote control car clutch hand controller described in item 1 of the patent scope of the application, the drive shaft system is formed by the first and second shaft sections being locked with each other, and the locking part is formed on the first The locking end of the shaft section is provided with a screw hole in the center, and the detent pin is arranged on the second shaft section, and a corresponding thread is provided at the joint end of the shaft section for locking.

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