Force feedback device and handle

Abstract

This invention discloses a force feedback device and handle, relating to the field of electronic equipment technology. The force feedback device includes a housing, a pressure rod, and a drive assembly. The housing cover has an opening, the edge of which forms a flange extending inwards and arranged in a ring shape. A positioning groove is formed inside the housing. The pressure rod can extend from the opening into the inner cavity of the housing, allowing it to move along a first direction when rotating relative to the housing. A ring gear of the drive assembly is through which the pressure rod passes. One end of the ring gear along the first direction is located in the positioning groove, and the inner wall of the ring gear and the flange are opposite each other along the radial direction of the ring gear. The cover and housing cooperate to limit the position of the transmission component in the first direction, and the flange and positioning groove cooperate to limit the position of the ring gear in the radial direction. This achieves a sliding and anti-rotation engagement between the ring gear and the pressure rod, fixing the overall position of the drive assembly, facilitating the standardized design of the device, improving transmission efficiency, and reducing transmission wobbling.

Description

Technical Field

[0001] This invention relates to the field of electronic equipment technology, and in particular to force feedback devices and handles. Background Technology

[0002] Currently, to enhance the user experience, gaming device manufacturers are adding force feedback devices to game controllers to simulate the immersive feeling of specific game scenarios, such as drawing a bow and shooting an arrow, or pulling the trigger of various firearms. However, existing force feedback devices are complex in structure and large in size, and cannot freely adjust the force feedback state and intensity, resulting in limited adjustment freedom and failing to meet the increasingly sophisticated gaming experience demands of users. Summary of the Invention

[0003] In order to adjust the feedback force, some structures are equipped with a pressure rod that can move in a straight line. Since the pressure rod can rotate and rise and fall relative to the outer shell, when driving the pressure rod, it is necessary to consider that the pressure rod can always transmit torque during the rising and falling process.

[0004] The main objective of this invention is to propose a force feedback device and handle that improves positioning effect and reduces transmission wobbling by designing the limiting method and installation position of the transmission components.

[0005] To achieve the above objectives, the present invention provides a force feedback device, comprising:

[0006] The outer casing includes a cover and a housing disposed opposite to each other along a first direction. The cover has an opening, and the edge of the opening has a flange extending toward the inside of the housing and arranged in an annular shape. The housing has a positioning groove and a first threaded portion.

[0007] A pressure rod extends along a first direction, one end of which is provided with a second threaded portion. The pressure rod can extend into the inner cavity of the housing through the opening, and the second threaded portion is threadedly connected to the first threaded portion, so that the pressure rod can move along the first direction when it rotates relative to the housing; and...

[0008] A drive assembly is installed in the housing. The drive assembly includes a drive component and a transmission component that are connected by a drive. The transmission component includes a ring gear, and the inner hole of the ring gear is through which the pressure rod passes.

[0009] One end of the ring gear along the first direction is disposed in the positioning groove, and the inner wall of the other end of the ring gear surrounds the outer periphery of the flange and is opposite to the flange along the radial direction of the ring gear.

[0010] In one embodiment, the transmission member further includes a drive gear meshing with the ring gear, the drive gear being connected to the drive member.

[0011] In one embodiment, a groove communicating with the inner hole of the ring gear is provided at the middle of one end of the ring gear facing the cover.

[0012] The flanged portion extends into the settling groove.

[0013] In one embodiment, the ring gear has an arc-shaped mating surface protruding from one end facing the cover, and the arc-shaped mating surface contacts the cover; and / or,

[0014] The ring gear has a protruding arc-shaped mating surface at one end facing away from the cover, and the arc-shaped mating surface contacts the bottom wall of the positioning groove.

[0015] In one embodiment, the end of the ring gear is provided with a plurality of arc-shaped mating surfaces, and the plurality of arc-shaped mating surfaces are arranged along the circumference of the ring gear.

[0016] In one embodiment, the ring gear has a protruding arc-shaped mating surface at one end facing away from the cover, and the arc-shaped mating surface contacts the portion of the positioning groove near the pressure rod.

[0017] In one embodiment, the outer surface of the ring gear is stepped to form a first mating section and a second mating section with gradually decreasing outer diameter. The second mating section is located in the positioning groove, and the peripheral surface of the first mating section forms teeth.

[0018] In one embodiment, the inner cavity of the housing is provided with an internal thread to form a first threaded portion, and the outer side of the pressure rod is provided with an external thread to form a second threaded portion; and / or,

[0019] The cover is made of metal, and the shell is made of plastic.

[0020] In one embodiment, the outer side of the pressure rod is formed with a plurality of guide grooves arranged at intervals along its circumference;

[0021] The inner wall of the ring gear is provided with a plurality of limiting ribs, which are used to extend into the guide groove.

[0022] The present invention also proposes a handle, comprising:

[0023] trigger;

[0024] Force feedback devices include at least:

[0025] The outer casing includes a cover and a housing disposed opposite to each other along a first direction. The cover has an opening, and the edge of the opening has a flange extending toward the inside of the housing and arranged in an annular shape. The housing has a positioning groove and a first threaded portion.

[0026] A pressure rod extends along a first direction, one end of which is provided with a second threaded portion. The pressure rod can extend into the inner cavity of the housing through the opening, and the second threaded portion is threadedly connected to the first threaded portion, so that when the pressure rod rotates relative to the housing, it can move along the first direction.

[0027] A drive assembly is installed in the inner cavity of the housing. The drive assembly includes a drive component and a transmission component that are connected by a drive. The transmission component includes a ring gear, and the inner hole of the ring gear is through which the pressure rod passes.

[0028] One end of the ring gear along the first direction is disposed in the positioning groove, and the inner wall of the other end of the ring gear surrounds the outer periphery of the flange and is opposite to the flange along the radial direction of the ring gear.

[0029] The pressure bar has a force feedback state in which it moves to abut against the trigger and a disengaged state in which it is released from the trigger.

[0030] In the technical solution of this invention, when the drive assembly is working, the transmission component can convert the driving force of the drive component into the rotational force of the pressure rod, thereby enabling the pressure rod to rotate relative to the outer shell. Based on the threaded engagement between the pressure rod and the shell, it can move along a first direction, thus allowing for adjustable length of the portion of the pressure rod exposed in the shell. During the forward and reverse rotation of the pressure rod, it can engage or disengage with the trigger of the handle. By controlling whether and when the pressure rod contacts the trigger, the user can obtain different force feedback effects when operating the trigger, resulting in different gaming experiences. In the structural fit, the driven gear is installed and positioned based on the positioning groove. The cover and shell fit together to limit the position of the driven gear in the first direction, and the flange and positioning groove fit together to limit the position of the driven gear in the radial direction. This ensures that during the engagement between the driven gear and the pressure rod, only torque can be transmitted, and the driven gear will not be displaced along the first direction due to the pressure rod's rotation. This achieves a sliding and anti-rotation engagement between the driven gear and the pressure rod in the first direction, allowing the overall position of the drive assembly to be fixed, facilitating miniaturization of the device, improving transmission efficiency, and reducing transmission wobbling. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1A schematic diagram of the structure of an embodiment (an angle) of the force feedback device provided by the present invention;

[0033] Figure 2 for Figure 1 3D exploded view of the force feedback device;

[0034] Figure 3 for Figure 1 A cross-sectional view of the fit between the intermediate pressure bar and the outer casing;

[0035] Figure 4 for Figure 1 A cross-sectional schematic diagram of the fit between the ring gear and the housing;

[0036] Figure 5 for Figure 1 A schematic diagram of the transmission components.

[0037] Explanation of icon numbers:

[0038] 100. Force feedback device; 1. Housing; 10. First threaded part; 11. Cover; 111. Opening; 12. Flanged part; 13. Housing; 131. Positioning groove; 2. Pressure rod; 20. Second threaded part; 21. Guide groove; 3. Drive assembly; 31. Drive component; 32. Transmission component; 320. Inner hole; 321. Ring gear; 322. Countersunk groove; 323. First mating section; 324. Second mating section; 330. Drive gear; 33. Limiting rib; 34. Arc-shaped mating surface; 4. Position detection device; 41. Magnetic sensor; 42. Induction magnet; 5. Fastening screw; 6. Flexible circuit board; 7. Cover.

[0039] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] To enhance the user experience, gaming device manufacturers add force feedback devices to game controllers to simulate the immersive feeling of specific game scenarios. In order to adjust the feedback force, some structures are equipped with a pressure rod that can move in a straight line. Since the pressure rod can rotate and rise and fall relative to the outer shell, it is necessary to consider that the pressure rod can always transmit torque during the rising and falling process when driving the pressure rod.

[0044] This invention proposes a force feedback device and handle, which improves the positioning effect and reduces transmission wobbling by designing the limiting method and installation position of the transmission components.

[0045] Please refer to Figures 1 to 2 and Figure 4 The force feedback device 100 includes a housing 1, a pressure rod 2, and a drive assembly 3. The housing 1 includes a cover 11 and a shell 13 disposed opposite to each other along a first direction. The cover 11 has an opening 111, and the edge of the opening 111 forms a flange 12 extending toward the inside of the shell 13 and arranged in an annular shape. A positioning groove 131 is formed inside the shell 13, and a first threaded portion 10 is provided inside the shell 13. The pressure rod 2 extends along the first direction, and one end of the pressure rod 2 has a second threaded portion 20. The pressure rod 2 can extend from the opening 111 into the inner cavity of the shell 13, and the second threaded portion 20 is connected to the inner cavity of the shell 13. The first threaded portion 10 is threaded to allow the pressure rod 2 to move along the first direction when it rotates relative to the housing 13. The drive assembly 3 is installed on the housing 13. The drive assembly 3 includes a drive member 31 and a transmission member 32 that are connected by a drive. The transmission member 32 includes a ring gear 321. The inner hole 320 of the ring gear 321 is for the pressure rod 2 to pass through. One end of the ring gear 321 along the first direction is located in the positioning groove 131. The inner wall of the other end of the ring gear 321 surrounds the outer periphery of the flange portion 12 and is opposite to the flange portion 12 along the radial direction of the ring gear 321.

[0046] In the technical solution of this invention, when the drive assembly 3 is working, the ring gear 321 can convert the driving force of the drive component 31 into the rotational force of the pressure rod 2, thereby enabling the pressure rod 2 to rotate relative to the outer shell 1. Based on the threaded engagement structure between the pressure rod 2 and the shell 13, it can move along a first direction, thus achieving an adjustable length setting for the portion of the pressure rod 2 exposed in the outer shell 1. During the forward and reverse rotation of the pressure rod 2, the pressure rod 2 can abut against or separate from the trigger of the handle. By controlling whether and when the pressure rod 2 contacts the trigger, the user can obtain different force feedback effects when operating the trigger, thereby obtaining different gaming experiences. During structural assembly, the ring gear 321 is installed and positioned based on the positioning groove 131. The cover 11 and the housing 13 cooperate to limit the position of the ring gear 321 in the first direction. The flange 12 and the positioning groove 131 cooperate to limit the position of the ring gear 321 in the radial direction. This ensures that during the engagement of the ring gear 321 with the pressure rod 2, only torque can be transmitted, and the ring gear 321 will not be displaced in the first direction due to the pressure rod 2 rotating. This achieves sliding and anti-rotation engagement between the ring gear 321 and the pressure rod 2 in the first direction, allowing the overall position of the drive assembly 3 to be fixed, facilitating the miniaturization of the device, improving transmission efficiency, and reducing transmission vibration.

[0047] When the pressure rod 2 is driven to rotate by the ring gear 321, it also moves along the first direction. If the driving point of the ring gear 321 and the pressure rod 2 is relatively fixed in the first direction, then the ring gear 321 must move synchronously with the pressure rod 2 in the first direction. That is, the ring gear 321 and the pressure rod 2 may slide and anti-rotate in the first direction, which raises the question of how to ensure that the ring gear 321 is always connected to the driving component 31 during the lifting and lowering process in the first direction. Alternatively, the ring gear 321, the pressure rod 2, and the driving component 31 may all move together with the pressure rod 2 in the first direction, which requires more space for arrangement. Therefore, in this embodiment, the ring gear 321 is set to slide and anti-rotate with the pressure rod 2 in the first direction, so that the overall position of the driving component 3 can be fixed, which facilitates the miniaturization of the device.

[0048] Specifically, the drive assembly 3 may have two working processes. In one working process, the drive assembly 3 may drive the pressure rod 2 to rotate to adjust the size of the pressure rod 2 extending out of the housing 1, thereby controlling whether it presses against or disengages from the trigger, so as to control whether the force feedback device 100 is used. When the aforementioned work process control force feedback device 100 is in use, i.e., the lever 2 is pressed against the trigger, the drive assembly 3 has another work process. Specifically, when the drive assembly 3 is energized and driven in the direction that the lever 2 extends out of the housing 1, if the trigger is pressed by the user, the drive assembly 3 provides a stall force in the opposite direction of the user's press. Combined with the frictional force when the lever 2 and the housing 1 rotate relative to each other, this forms force feedback to the user. At this time, the drive assembly 3 is used to increase the feedback force. Conversely, when the drive assembly 3 is energized and driven in the direction that the lever 2 retracts into the housing 1, if the trigger is pressed by the user, the drive assembly 3 provides a driving force in the same direction as the user's press to counteract the frictional force when the lever 2 and the housing 1 rotate relative to each other, forming force feedback to the user. At this time, the drive assembly 3 is used to reduce the feedback force. When the drive assembly 3 is not activated, if the user presses the trigger, the frictional force between the lever 2 and the housing 1 rotating relative to each other serves as the force feedback to the user.

[0049] The specific form of the transmission component 32 is not limited; for example, it can be a sprocket drive, gear drive, etc. In this embodiment, please refer to... Figure 2 and Figure 3 The transmission component 32 also includes a drive gear 330 that meshes with the ring gear 321. The drive shaft of the drive component 31 is connected to the drive gear 330. The drive component 31 can be configured as a motor, and the drive gear 330 can be fixed to the drive shaft of the motor and rotate synchronously. When the drive gear 330 rotates, the ring gear 321 is driven to move and can transmit the driving force to the pressure rod 2, so that the pressure rod 2 can achieve rotation and lifting action. It should be noted that the motor body is located on the outside of the housing 13, and the motor shaft of the motor extends into the inside of the housing 13.

[0050] The ring gear 321 has a groove 322 in the middle of one end facing the cover 11, which communicates with its inner hole 320. The flange 12 extends into the groove 322, so that the flange 12 can serve as the shaft positioning structure of the ring gear 321. In the radial direction of the pressure rod 2, the ring gear 321 is mainly restricted by the side wall of the positioning groove 131 and the flange 12, so it can have a stable position in the radial direction.

[0051] Please refer to Figure 5The ring gear 321 has a protruding arc-shaped mating surface 34 at one end facing the cover 11 and / or the other end facing away from the cover 11. The arc-shaped mating surface 34 is used to contact the bottom wall of the cover 11 or the positioning groove 131. This arrangement allows the arc surface to contact the plane, forming a tangential fit, which is beneficial to the accurate positioning of the ring gear 321 and can reduce the rotational frictional resistance of the ring gear 321.

[0052] It should be noted that in some embodiments, the arc-shaped mating surface 34 is arranged in a ring shape, that is, the ring-shaped surface of the corresponding end of the transmission member 32 is in contact with the inner wall surface of the cover 11. In some embodiments, the corresponding end of the transmission member 32 is provided with multiple arc-shaped mating surfaces 34, which are arranged circumferentially along the transmission member 32. In this embodiment, the arc-shaped mating surfaces 34 are elongated, and the length of each arc-shaped mating surface 34 can be the same or different, and the spacing between two adjacent arc-shaped mating surfaces 34 can be the same or different. In this case, the multiple arc-shaped mating surfaces 34 and the cover 11 have multi-point mating.

[0053] The vertex of the arc-shaped mating surface 34 should be the outermost edge of the transmission component 32.

[0054] In this embodiment, the ring gear 321 has a protruding arc-shaped mating surface 34 at one end facing away from the cover 11, and the arc-shaped mating surface 34 contacts the part of the positioning groove 131 near the pressure rod 2. The value of torque is affected by the radius and friction. When the coefficient of friction is fixed, the smaller the radius, the smaller the torque. Therefore, within the limited space of the bottom wall of the positioning groove 131, the arc-shaped mating surface 34 is positioned as close as possible to the pressure rod 2 to reduce the torque.

[0055] Furthermore, the outer surface of the ring gear 321 is stepped to form a first mating section 323 and a second mating section 324 with gradually decreasing outer diameters. The second mating section 324 is located within the positioning groove 131, and the peripheral surface of the first mating section 323 forms teeth. The stepped surfaces formed by the first mating section 323 and the second mating section 324 are spaced apart from the edge of the positioning groove 131, and the second mating section 324 and the positioning groove 131 are radially defined.

[0056] During the engagement of the pressure rod 2 with the components, the precision requirements for the fit between the cover 11 and the pressure rod 2 are higher. This makes the opening 111 play a guiding and limiting role during the engagement with the pressure rod 2. The inner hole 320 of the ring gear 321 is mainly for the pressure rod 2 to pass through and for the torque transmission between the pressure rod 2 and the transmission component 32. A first gap is formed between the flange 12 and the pressure rod 2, and a second gap is formed between the inner hole 320 of the ring gear 321 and the pressure rod 2. The size of the first gap is smaller than the size of the second gap. Since the driving force on the pressure rod 2 has a lateral component, there is a certain amount of deflection during the displacement of the pressure rod 2 in the first direction. By setting the size of the first gap to be smaller than the size of the second gap, even if the pressure rod 2 deflects, it will first abut against the inner wall of the flange 12, while there will still be a certain fit clearance between it and the ring gear 321. Therefore, it will not affect the torque transmission, avoid the ring gear 321 from jamming, and improve the stability of the entire device operation.

[0057] The housing 13 and the pressure rod 2 are connected by a threaded connection. A threaded hole can be provided on the pressure rod 2, and a corresponding screw can be provided inside the housing 13 to achieve the connection. For this embodiment, please refer to... Figure 3 The inner cavity of the housing 13 is provided with an internal thread to form a first threaded portion 10; the outer side of the pressure rod 2 is provided with an external thread to form a second threaded portion 20.

[0058] It should be understood that corresponding mating parts can be provided in the inner hole 320 of the ring gear 321 and the outer side of the pressure rod 2, so as to avoid the pressure rod 2 not being under force when the transmission component 32 rotates due to excessive gap between the ring gear 321 and the pressure rod 2.

[0059] The outer side of the pressure rod 2 has multiple guide grooves 21 arranged at intervals along its circumference; the inner wall of the ring gear 321 is provided with multiple limiting ribs 33, which are used to extend into the guide grooves 21. When the driving member 31 drives the ring gear 321 to rotate, the limiting ribs 33 will abut against the groove wall of the guide groove 21 during the rotation, thereby driving the pressure rod 2 to rotate. In contrast, when the pressure rod 2 rotates, it moves relative to the outer shell 1 in the first direction, and the limiting ribs 33 can move along the length direction of the guide groove 21 without the need for the transmission member 32 to move. The structure is simple and ingenious, and has strong practicality.

[0060] It should be understood that the number of guide grooves 21 is greater than or equal to the number of limiting ribs 33. In some embodiments, the two numbers are the same, in which case each limiting rib 33 extends into the corresponding guide groove 21. In some embodiments, the number of guide grooves 21 is greater, in which case some guide grooves 21 are fitted with limiting ribs 33, while some guide grooves 21 are empty. This not only does not affect the realization of its function, but also allows the pressure rod 2 to be used in different gear structures. It should be understood that when the pressure rod 2 is a plastic part, the guide grooves 21 can be obtained directly by thermoplastic processing; when the pressure rod 2 is a metal part, the guide grooves 21 can be obtained by cutting.

[0061] The guide groove 21 and the limiting rib 33 can be matched in shape to facilitate the engagement of the pressure rod 2 along the first direction. The guide groove 21 and the limiting rib 33 can also have different shapes, as long as they can move relative to each other. For example, the guide groove 21 can be an arc-shaped groove, and the limiting rib 33 can be an arc-shaped protrusion. Alternatively, the guide groove 21 can be a square groove, and the limiting rib 33 can be a protrusion; or the guide groove 21 can be a square groove, and the limiting rib 33 can be an arc-shaped protrusion. This invention does not impose any limitations on these aspects.

[0062] In some implementations, the top of the limiting rib 33 is an arc shape protruding towards the guide groove 21. A limiting groove is defined between two adjacent limiting ribs 33, and a guide protrusion is defined between two adjacent guide grooves 21. The gap between the top of the limiting rib 33 and the guide groove 21 is smaller than the gap between the limiting groove and the guide protrusion. With this configuration, the ring gear 321 and the pressure rod 2 can make linear contact. When transmitting torque, the frictional resistance can be reduced when the pressure rod 2 moves linearly in the first direction.

[0063] Based on this embodiment, a guide protrusion is defined between two adjacent guide grooves 21, a limiting groove is defined between two adjacent limiting ribs 33, and a second gap is defined between the outer side of the guide protrusion and the bottom surface of the limiting groove.

[0064] In this embodiment, the top of the limiting rib 33 is arc-shaped, and the width of the guide groove 21 gradually widens towards the ring gear 321. This allows the width of the guide groove 21 to adapt to the arc dimension of the limiting rib 33, ensuring a clearance fit between the limiting rib 33 and the guide groove 21 in the circumferential direction.

[0065] Specifically, the guide groove 21 includes a bottom wall and two side walls located on opposite sides of the bottom wall, with the two side walls extending away from each other; the gap between the top of the limiting rib 33 and the bottom wall is smaller than the gap between the bottom of the limiting rib 33 and the side wall. During the movement of the limiting rib 33 driven by the ring gear 321, the ring gear 321 can contact different side walls by rotating clockwise or counterclockwise, thereby causing the pressure rod 2 to rotate threadedly relative to the outer casing 1.

[0066] Furthermore, considering the stability of the fit, the number of limiting ribs 33 is 'a', where a ≥ 3. Three limiting ribs 33 can form a triangular stable support, which is more stable than the cases of a single limiting rib or two limiting ribs.

[0067] The plurality of limiting ribs 33 include a first limiting rib and a second limiting rib arranged circumferentially adjacent to each other in the pressure rod 2, with the first limiting rib and the second limiting rib spaced apart in a first direction. Thus, contact points are formed in two dimensions in the first direction during torque transmission.

[0068] In addition, the slope of the teeth of the ring gear 321 that meshes with the drive gear 330 is an outwardly convex arc shape, thus enabling line contact when it mates with the drive gear 330. The slope of the limiting rib 33 adjacent to its top is an inwardly convex arc shape, thus enabling line contact when it mates with the guide groove 21.

[0069] The cover 11 and the shell 13 are arranged opposite each other in the first direction, and the two can be connected by a snap-fit. In this embodiment, they are also locked by fastening screws 5.

[0070] Considering the function of the cover 11, the cover 11 is made of metal. At this time, the material of the shell 13 can be the same as that of the cover 11, or the material of the shell 13 can be different from that of the cover 11. In this embodiment, the shell 13 is made of plastic, which is lighter and suitable for the preparation of complex shapes.

[0071] To meet different force feedback requirements, this can be achieved by keeping the pressure rod 2 in a specific position or by controlling different rotation angles of the motor. Therefore, it is necessary to confirm the current position of the pressure rod 2 as it moves along the first direction. In this embodiment, a position detection device 4 is used to detect the position of the pressure rod 2 in real time. The specific form of the position detection device 4 is not limited, and includes, but is not limited to, physical contact position detection devices, visual detection devices, infrared distance sensors, etc. In this embodiment, a combination of a magnetic sensor 41 and a sensing magnet is mainly used. This detection method is less susceptible to interference and is more practical.

[0072] Specifically, the magnetic sensor 41 is disposed outside the housing 13, and the sensing magnet is disposed inside the pressure rod 2. Because the magnetic induction detection method between the magnetic sensor 41 and the sensing magnet can be detected through an object, the magnetic sensor 41 can be disposed outside the housing 13. This reduces the size of the force feedback device 100 and facilitates the maintenance and replacement of the magnetic sensor 41. Specifically, the magnetic sensor 41 is mounted on the flexible circuit board 6 for assembly. The sensing magnet is disposed inside the pressure rod 2, allowing it to move synchronously with the pressure rod 2 without interfering with other components.

[0073] For the installation of the induction magnet 42, the pressure rod 2 has a hollow portion extending through in a first direction. This hollow portion includes a first hollow portion and a second hollow portion, which are arranged along the inside of the housing 13 towards the outside. The cross-sectional area of ​​the second hollow portion is smaller than that of the first hollow portion. Due to the difference in cross-sectional area between the first and second hollow portions, a stepped surface is formed facing away from the second hollow portion and towards the inside of the housing 13. The port of the second hollow portion of the induction magnet 42 is inserted until it abuts against the stepped surface, completing the installation. Because of the through-hole design of the hollow portion, air can escape from the second hollow portion during the installation of the induction magnet 42, which helps reduce air resistance during assembly. Furthermore, the installation direction of the induction magnet 42 is consistent with the direction of movement of the pressure rod 2 when it abuts against the trigger. At this time, the direction of the inertial force is consistent with the direction of the force exerted by the induction magnet 42 against the stepped surface, preventing the induction magnet 42 from shaking.

[0074] It should be understood that if the sensing magnet 42 moves along the direction from the second hollow part to the first hollow part, then during the movement of the lever 2 toward the trigger, due to inertia, the sensing magnet 42 will have the same tendency to move. With prolonged use, there is a risk that the sensing magnet 42 will shift, which will affect the position detection accuracy based on the sensing magnet 42.

[0075] Furthermore, the induction magnet 42 is interference-fitted with the first hollow part. When the induction magnet 42 is not installed properly, it is not easy to exit from the inlet. At this time, the external workpiece can be inserted from the port of the second hollow part, thereby holding the end of the induction magnet 42 until it is pushed out.

[0076] Considering that the pressure bar 2 is in direct contact with the trigger, a plug 7 is provided at the end of the pressure bar 2. The plug 7 can increase the base area with the trigger, and different contact effects with the trigger can be achieved by changing the material of the plug 7.

[0077] Based on the hollow structure design, the end of the pressure rod 2 near the cover 11 has a groove that connects to the second hollow part; the force feedback device 100 also includes a detachable cover 7, at least part of which is embedded in the groove. The cover 7 can cooperate with the trigger and also seal the hollow part.

[0078] It should be understood that the fixed fit between the induction magnet 42 and the second hollow part can be ensured by applying glue to the end of the induction magnet 42 facing away from the second hollow part. In some embodiments, the pressure rod 2 can be made of plastic, and the port position of the second hollow part can be locally heat-melted to deform it, thereby achieving the purpose of limiting the induction magnet 42.

[0079] The present invention also proposes a handle, which includes a trigger and a force feedback device 100. The specific structure of the force feedback device 100 is as described in the above embodiments. Since the handle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0080] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A force feedback device, characterized by The application relates to a force feedback device, comprising: a housing, comprising a cover and a shell arranged oppositely along a first direction, wherein an opening is arranged on the cover, an edge of the opening is formed with a flange part extending towards an inner side of the shell and arranged annularly, a positioning groove is formed in the shell, and a first threaded part is arranged in the shell; a pressing rod extending along the first direction, one end of the pressing rod is provided with a second threaded part, the pressing rod can extend into an inner cavity of the shell from the opening, and the second threaded part is threadedly connected with the first threaded part, so that the pressing rod can move along the first direction when the pressing rod rotates relative to the shell; and a driving assembly installed on the shell, the driving assembly comprises a driving member and a transmission member connected with the driving member, and the transmission member comprises an annular gear, and an inner hole of the annular gear is provided for the pressing rod to pass through; one end of the annular gear along the first direction is arranged in the positioning groove, and an inner hole wall of the other end of the annular gear surrounds an outer periphery of the flange part and is opposite to the flange part along a radial direction of the annular gear.

2. The force feedback device of claim 1, wherein, The transmission member further comprises a driving gear engaged with the annular gear, and the driving gear is connected with the driving member.

3. The force feedback device of claim 1, wherein, A recessed groove communicating with the inner hole of the annular gear is arranged at a middle part of one end of the annular gear towards the cover; The flange part extends into the recessed groove.

4. The force feedback device of claim 1, wherein, One end of the annular gear towards the cover is provided with an arc-shaped matching surface, and the arc-shaped matching surface is in contact with the cover; and / or The other end of the annular gear away from the cover is provided with an arc-shaped matching surface, and the arc-shaped matching surface is in contact with a bottom wall of the positioning groove.

5. The force feedback device of claim 4, wherein, Corresponding end parts of the annular gear are provided with a plurality of arc-shaped matching surfaces, and the arc-shaped matching surfaces are arranged along a circumferential direction of the annular gear.

6. The force feedback device of claim 4, wherein, The other end of the annular gear away from the cover is provided with an arc-shaped matching surface, and the arc-shaped matching surface is in contact with a part of the positioning groove close to the pressing rod.

7. The force feedback device of claim 1, wherein, An outer side surface of the annular gear is arranged in steps to form a first matching section and a second matching section with gradually decreasing outer diameters, the second matching section is arranged in the positioning groove, and a circumferential side surface of the first matching section is formed with a tooth part.

8. The force feedback device of claim 1, wherein, An inner cavity of the shell is provided with an inner thread to form the first threaded part, and an outer side of the pressing rod is provided with an outer thread to form the second threaded part; and / or The cover is made of metal material, and the shell is made of plastic material.

9. The force feedback device of claim 1, wherein, An outer side of the pressing rod is formed with a plurality of guide grooves arranged along a circumferential direction of the pressing rod at intervals; An inner hole wall of the annular gear is provided with a plurality of limiting ribs, and the limiting ribs are arranged to extend into the guide grooves.

10. A handle characterized in that, The application further relates to a force feedback device, comprising: a trigger; and a force feedback device, comprising the force feedback device as claimed in any one of claims 1 to 9, and the pressing rod has a force feedback state of moving to abut against the trigger and a separation state of separating from the trigger.

Images