Power rotating device for vehicle seat

By combining the design of the clutch gear and the braking module, the problems of reduced operability and stability of the power rotation device for vehicle seats have been solved, achieving a higher level of operability and stability, and improving passenger comfort and product value.

CN121822249APending Publication Date: 2026-04-10HYUNDAI TRANSYS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing power rotation devices for vehicle seats suffer from reduced operability, gaps, and abnormal noises due to issues such as cumulative tolerances of components, dimensional accuracy, and gear backlash, which affect the stability of the vehicle seats.

Method used

The design employs a combination of clutch gears and a brake module. Rotation is limited by a stop on the brake drum, and an abnormal position is detected by a position switch, ensuring the stability and precision of the rotational operation. The clutch gears are manufactured using dual injection molding to improve accuracy.

Benefits of technology

Optimize the user experience, eliminate gaps in rotation direction, improve vehicle seat stability and passenger comfort, and enhance product value.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a power rotation device for a vehicle seat, the power rotation device comprising: a housing having at least one cut portion in an inner diameter portion thereof; a clutch gear which, in a state in which the clutch gear is inserted into the housing, at least a portion of gear teeth provided along an inner diameter portion of the clutch gear is exposed through the cutout portion and meshes with a pinion gear of a motor; and a brake module inserted inside the housing and including a brake drum.
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Description

Technical Field

[0001] This invention relates to a power rotation device for a vehicle seat that rotates the vehicle seat through a rotational motion. Background Technology

[0002] Vehicle seats are typically equipped with various convenience features to provide passengers with a comfortable ride and convenience.

[0003] Examples of convenient features for vehicle seats include: seat rails for moving the vehicle seat forward and backward according to the occupant's body shape; leg rests for supporting the passenger's legs; and power swivel devices for rotating the vehicle seat.

[0004] The seat rail system may include: a lower rail, which engages with the vehicle interior floor panel; and an upper rail, which is inserted into the lower rail and moves along it. A power rotation device for the vehicle seat may be connected to the upper rail.

[0005] In the power rotation device for vehicle seats, the power of the motor is transmitted to the rotating plate through a ring gear that meshes with the pinion of the motor. Since the rotating plate is connected to the vehicle seat, the rotation of the vehicle seat can be achieved by rotating the rotating plate.

[0006] However, existing power rotation devices for vehicle seats may cause problems such as reduced operability, gaps, and abnormal noises due to the cumulative tolerances of components, dimensional accuracy, and gear backlash. Furthermore, the tooth gap between the pinion and the ring gear inevitably leads to a decrease in the stability of the vehicle seat.

[0007] Prior technology documents

[0008] Patent documents

[0009] (Patent Document 1) Korean Patent Publication No. 10-2020-0078903 (published on July 2, 2020) Summary of the Invention

[0010] To solve the above problems, the present invention provides a power rotation device for a vehicle seat, which realizes the braking release state of the braking component through a clutch gear driven by an electric motor, thereby transmitting the rotational force of the brake drum to a rotating plate connected to the vehicle seat, thereby realizing the rotation of the vehicle seat.

[0011] To achieve the aforementioned objective, a power rotation device for a vehicle seat is provided, comprising: a housing having at least one cutout in its inner diameter; a clutch gear having at least a portion of its teeth, provided along its inner diameter, exposed through the cutout and meshing with a pinion of a motor when the clutch gear is inserted into the housing; and a brake module inserted into the housing and including a brake drum having a stop member that restricts further rotation of the brake drum in a hard-stop state where the brake drum has stopped operating.

[0012] Furthermore, the housing may include: a first receiving portion disposed inside and facing the inner diameter portion, for inserting the clutch gear; and a second receiving portion connected to the first receiving portion, forming a step with the first receiving portion while being disposed inside towards the edge side, and being formed to be higher than the first receiving portion.

[0013] Furthermore, the braking module may also include a brake ring inserted into the second receiving portion, and the brake drum is positioned on the clutch gear while the clutch gear is inserted into the first receiving portion, and is assembled at the same height as the brake ring.

[0014] Furthermore, the brake drum may have at least one stop at the portion corresponding to the inner diameter of the pinion, the stop being configured to surround at least a portion of the pinion.

[0015] Furthermore, the clutch gear may be formed by a double injection molding structure consisting of a gear portion and a body portion surrounding the edge portion of the gear portion.

[0016] Furthermore, a position switch may be provided to prevent the clutch gear from malfunctioning. If the clutch gear stops when the position switch is in the open state, it is determined to be an abnormal position; if the clutch gear stops when the position switch is in the closed state, it is determined to be normal.

[0017] Furthermore, a braking component may be provided between the inner diameter of the brake ring and the outer diameter of the brake drum. The braking component is in a braking state when it is between pressure protrusions provided along one edge of the clutch gear, and is in a brake release state when the clutch gear rotates and is pushed by the pressure protrusions.

[0018] Furthermore, the braking component may include: an elastic component; and rollers disposed on both sides of the elastic component in a manner toward the pressure protrusion, and elastically supported by the elastic component.

[0019] Furthermore, the brake drum may have a support surface on its outer diameter portion, and the roller may be clamped between the inner diameter portion of the brake ring and the support surface to form a braking state. When the roller is pushed by the pressure protrusion to the support groove formed on one side end of the support surface, the clamping is released and a braking release state is formed.

[0020] Furthermore, the cover can be attached to the top of the housing while the clutch gear, the brake ring, and the brake drum are inserted and assembled inside the housing.

[0021] Furthermore, the cover may be positioned on top of the brake ring, on the pressure protrusion of the clutch gear, and on the mounting surface formed on the edge of the brake drum.

[0022] Furthermore, a buckle may be provided along the outer diameter of the cover, and the engagement hole formed in the buckle engages with the engagement protrusion formed on the outer diameter of the housing.

[0023] Furthermore, the housing may be mounted and attached to a fixed frame, with a frame cover attached to the edge of the fixed frame, and a rotating component inserted into the inner diameter of the frame cover, while the edge portion of the rotating component is inserted into and assembled inside the frame cover.

[0024] Furthermore, the rotating component may have a first guide rail and a second guide rail on its upper and lower edges. The first guide rail is rotatably supported by a first ball bearing located inside the frame cover, and the second guide rail is rotatably supported by a second ball bearing located inside the fixed frame.

[0025] Furthermore, the rotating component may be connected to a rotating plate, and the rotating plate may be connected to a vehicle seat.

[0026] Invention Effects

[0027] This invention can optimize the user experience during rotation and compensate for the gap in the rotation direction when stationary, thereby improving the stability of the vehicle seat.

[0028] Furthermore, this invention can enhance the user experience, providing comfort to passengers while also increasing the value of the product. Attached Figure Description

[0029] Figure 1 This is a perspective view of a power rotation device for a vehicle seat according to a preferred embodiment of the present invention.

[0030] Figure 2 This is a perspective view showing the state in which a clutch gear, a brake ring, a brake drum, and a cover are assembled on a housing according to a preferred embodiment of the present invention.

[0031] Figure 3 This is a detached perspective view of a power rotation device for a vehicle seat according to a preferred embodiment of the present invention.

[0032] Figure 4 This is a top view illustrating the operation of a braking component according to a preferred embodiment of the present invention.

[0033] Figure 5 This is a bottom view showing the state in which the gear teeth of the clutch gear are exposed through a cut in the housing according to a preferred embodiment of the present invention.

[0034] Figure 6 yes Figure 4 A sectional view along line AA.

[0035] Figure 7 This is a diagram showing a clutch gear manufactured with a dual injection molding structure according to a preferred embodiment of the present invention.

[0036] Figure 8 This is a diagram illustrating a position switch according to a preferred embodiment of the present invention.

[0037] Figure 9 This is a perspective view showing the state in which the frame cover and rotating component are assembled on a fixed frame according to a preferred embodiment of the present invention.

[0038] Figure 10 yes Figure 9 BB line section view.

[0039] In the picture:

[0040] 10: Housing, 11: First receiving part, 12: Second receiving part, 13: Cutting part, 14: Engaging protrusion, 20: Clutch gear, 21: Gear part, 211: Gear tooth, 212: Slot, 213: Bending part, 22: Body part, 23: Pressurizing protrusion, 30: Brake ring, 40: Brake drum, 41: Stop, 42: Support surface, 421: Support groove, 43: Mounting surface, 50: Cover, 51: Buckle, 511: Engaging hole, 61: Fixing frame, 62: Side cover, 63: Rotating component, 631: First guide rail part, 632: Second guide rail part, 64: Rotating plate, 70: Engaging component, 80: Braking component, 81: Elastic component, 82: Roller, B1: First ball bearing, B2: Second ball bearing, M: Motor, PG: Pinion, PW: Position switch Detailed Implementation

[0041] The preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. First, it should be noted that when labeling the constituent elements of the drawings, the same reference numerals should be used as much as possible for the same constituent elements, even in different drawings. Furthermore, in describing the present invention, detailed descriptions will be omitted if it is determined that a specific explanation of a known structure or function would obscure the essence of the invention. Moreover, although a preferred embodiment of the present invention will be described below, the technical concept of the present invention is not limited to or restricted thereto, and can be implemented in various ways by those skilled in the art.

[0042] Figure 1 This is a perspective view of a power rotation device for a vehicle seat according to a preferred embodiment of the present invention. Figure 2 This is a perspective view showing the state in which a clutch gear, a brake ring, a brake drum, and a cover are assembled on a housing according to a preferred embodiment of the present invention.

[0043] like Figure 1 and Figure 2 As shown, in this invention, the power of the motor M is transmitted to the rotating plate 64 via the clutch gear 20, thereby causing the rotating plate 64 to rotate (swivel), and thereby driving the vehicle seat (not shown) connected to the rotating plate 64 to rotate.

[0044] Figure 3 This is a split perspective view of a power rotation device for a vehicle seat according to a preferred embodiment of the present invention. Figure 4 This is a top view illustrating the operation of a braking component according to a preferred embodiment of the present invention. Figure 5 This is a bottom view showing the teeth of the clutch gear exposed through a cut in the housing according to a preferred embodiment of the present invention. Figure 6 yes Figure 4 A sectional view along line AA.

[0045] like Figures 3 to 6 As shown, in this invention, the cover 50 can be attached to the upper part of the housing 10 while the clutch gear 20, brake ring 30 and brake drum 40 are assembled inside the housing 10.

[0046] The housing 10 may include a first receiving portion 11, a second receiving portion 12, a cut-out portion 13, and a connecting protrusion 14.

[0047] The first receiving portion 11 may be formed inside the housing 10 in the direction of the inner diameter. The first receiving portion 11 may be configured to match the shape of the clutch gear 20 so that the clutch gear 20 can be inserted.

[0048] The second receiving portion 12 may be formed inside the housing 10 towards the edge. The second receiving portion 12 may communicate with the first receiving portion 11. The second receiving portion 12 may be formed to be higher than the first receiving portion 11 so as to form a step with the first receiving portion 11. The second receiving portion 12 may be configured to match the shape of the brake drum 40 so that the brake ring 30 can be inserted.

[0049] With the clutch gear 20 inserted and assembled in the first receiving part 11 of the housing 10, the brake drum 40 can be placed and assembled on the clutch gear 20.

[0050] Since the height of the second receiving portion 12 is higher than that of the first receiving portion 11, the brake ring 30 inserted into the second receiving portion 12 can be at the same height as the brake drum 40 mounted on the clutch gear 20.

[0051] Pressure protrusions 23 can be formed at equal intervals along the upper edge of the clutch gear 20. The brake drum 40, which clamps the pressure protrusions 23 of the clutch gear 20, can be inserted into the first receiving portion 11, while the brake ring 30 can be inserted into the second receiving portion 12.

[0052] By attaching the cover 50 to the upper part of the housing 10 with the clutch gear 20, brake ring 30 and brake drum 40 assembled inside the housing 10, it is possible to prevent the clutch gear 20, brake ring 30 and brake drum 40 attached inside the housing 10 from falling off.

[0053] Specifically, the cover 50 attached to the upper part of the housing 10 can be placed on the brake ring 30, the pressure protrusion 23, and the mounting surface 43 formed on the edge of the brake drum 40.

[0054] Reference Figure 2 A latch 51 may be provided on the side of the cover 50. The latch 51 may have a connecting hole 511. The connecting hole 511 of the latch 51 can engage with a connecting protrusion 14 formed on the side of the housing 10.

[0055] Therefore, the assembly structure formed by the snap-fit ​​51 not only makes it very easy to assemble the cover 50 and the shell 10, but also solves the problem of quality degradation caused by heat during the assembly of the cover 50 and the shell 10 using traditional assembly methods such as welding and riveting.

[0056] Reference Figure 2 , Figure 3 , Figure 5 The clutch gear 20 may have gear teeth 211 formed along its inner diameter. Only a portion of the gear teeth 211 of the clutch gear 20 may be exposed through the cutout 13 of the housing 10.

[0057] Thus, most of the clutch gear 20 is located inside the housing 10, with only a portion of the gear teeth 211 exposed, thereby enabling stable rotational action to be achieved inside the housing 10.

[0058] By forming two cutouts 13 on both sides of the inner diameter of the housing 10, the rotational motion can be shared on the right or left side.

[0059] The gear teeth 211 of the clutch gear 20 exposed by the cut-out portion 13 can mesh with the pinion PG of the motor M.

[0060] Thus, since the pinion PG of the motor M meshes with the gear teeth 211 of the clutch gear 20, the power of the motor M can be transmitted to the clutch gear 20 via the pinion PG.

[0061] Reference Figures 2 to 4 The brake drum 40 may have a stop 41 at a position corresponding to the inner diameter of the pinion PG of the motor M. The stop 41 may be configured to surround at least a portion of the pinion PG of the motor M. The pinion PG can be assembled in the correct position within an allowable error range using the stop 41.

[0062] The stop 41 can determine the final position of the vehicle seat (illustration omitted) by using the pinion PG of the motor M and the hard stop.

[0063] For example, in order to share the rotation mode of the right or left side, two stop members 41 can be formed on both sides of the inner diameter of the brake drum 40.

[0064] The pressurizing protrusion 23 of the clutch gear 20 must rotate in the opposite direction to a position that releases the roller 82 of the braking component 80 before it can be locked again (locked state). Since the braking module (such as brake ring, brake drum, etc.) operated by the motor M stops at the position where the motor M completes its operation, the roller 82 in the forward direction can remain in the locked-out state. Therefore, the braking module is in a state where it can rotate in the forward direction by an amount of travel equivalent to the roller 82 (about 1 to 2 degrees), which, although a one-time phenomenon, may be perceived as a gap.

[0065] However, since the stop member 41 of the brake drum 40 is configured to surround the pinion PG, when the brake drum 40 is in a hard-limited stop state, even if additional rotation is performed in the forward direction, the stop member 41 will be stuck by the pinion PG and cannot rotate.

[0066] In order to deal with situations where the stop 41 is located in other positions of other components besides the brake drum 40, the present invention can immediately stop the rotation of the brake drum 40 in the forward direction regardless of the shape, size, etc. of the component.

[0067] Moreover, when the stop member 41 is located in a position other than the brake drum 40, the absolute position (0 degrees) is likely to deviate due to various factors. However, since the stop member 41 is located in the inner diameter of the brake drum 40, the present invention can completely solve the above problems.

[0068] Reference Figure 6 The brake drum 40 can be coupled with a coupling component 70, such as a serration bolt. The coupling component 70 can be coupled to the brake drum 40 by pressing, bolting, welding, or other methods.

[0069] For example, the connecting component 70 can pass through the brake drum 40 and connect to the rotating plate 64.

[0070] Reference Figure 4 The braking component 80 may be located between the pressure protrusions 23 and between the inner diameter of the brake ring 30 and the outer diameter of the brake drum 40.

[0071] The braking component 80 may include an elastic component 81 and rollers 82 disposed on both sides of the elastic component 81. The rollers 82 may be elastically supported by the elastic component 81 so that they face the pressure protrusion 23.

[0072] The elastic component 81 is preferably made of a spring, but it may also be made of elastic rubber or an elastomer.

[0073] A support surface 42 may be provided along the outer diameter of the brake drum 40. The support surface 42 may be formed by an inclined surface. The support surface 42 may be configured to correspond to the rollers 82 of each brake component 80, thereby supporting the rollers 82 of each brake component 80. When the rollers 82 are located on the support surface 42 under the elastic force of the elastic member 81, they can engage in a wedge shape between the inner diameter of the brake ring 30 and the support surface 42. Therefore, a braking state in which the vehicle seat (not shown) cannot rotate can be formed.

[0074] When the clutch gear 20 rotates, the roller 82 is pushed by the pressure protrusion 23 and positioned in the support groove 421 formed on one side of the support surface 42, thus achieving a disengaged state. Therefore, a brake-released state in which the vehicle seat (not shown) can rotate can be achieved.

[0075] The support groove 421 can be configured as an arc shape that conforms to the roller 82. The width between the inner diameter of the brake ring 30 and the support surface 42 can be configured to gradually narrow from one end of the support surface 42 toward the other end toward the pressure protrusion 23.

[0076] Figure 7A diagram illustrating a clutch gear manufactured as a double injection-molded structure according to a preferred embodiment of the present invention.

[0077] like Figure 7 As shown, the clutch gear 20 can be molded into a double injection molding structure consisting of a gear portion 21 and a body portion 22.

[0078] Figure 7 (a) is a top view of the gear section. Figure 7 (b) is a bottom view of the gear section 21, which may be made of metal such as steel. A slot 212 and a bend 213 may be provided along the outer diameter of the gear section 21.

[0079] During injection molding, the molding material of the body part 22 penetrates into the slot 212 to complete the molding, thus achieving a strong double injection molding of the gear part 21 and the body part 22.

[0080] When the curved portion 213 is bent toward the center of the gear portion 21, dual injection molding of the gear portion 21 and the body portion 22 can be achieved. During the injection molding process in which the body portion 22 covers the curved portion 213 of the gear portion 21, a pressure protrusion 23 can be naturally formed.

[0081] Figure 7 (c) is a top view showing a clutch gear formed by double injection molding of the gear section and the body section. Figure 7 (d) is a bottom view showing a clutch gear formed by double injection molding of the gear part and the body part. Since the clutch gear 20 is manufactured by double injection molding of the gear part 21 and the body part 22, it can be manufactured with precision.

[0082] Figure 8 A diagram illustrating a position switch according to a preferred embodiment of the present invention.

[0083] like Figure 8 As shown, a position switch PW for detecting errors in the clutch gear 20 may be provided.

[0084] When the position switch PW stops operating due to the hard stop of the clutch gear 20, it can be determined whether the stopping position of the clutch gear 20 is a normal position (0 degrees, 180 degrees) or an abnormal position. If the clutch gear 20 is subjected to abnormal load, the clutch gear 20 may stop in an abnormal position.

[0085] When the position switch PW is in the ON state, if the clutch gear 20 stops, it is sensed as an abnormal position. When the position switch PW is in the OFF state, if the clutch gear 20 stops, it can be identified as a normal arrival at the target position.

[0086] In another example, a position switch PW can be used to directly detect the 0° position set on the clutch gear 20 to prevent malfunction of the clutch gear 20.

[0087] For example, the position switch PW can be a microswitch, a limit switch, or any switch capable of zero-point control.

[0088] Figure 9 To illustrate a perspective view of a frame assembly of a side cover and a rotating component on a fixed frame according to a preferred embodiment of the present invention, Figure 10 for Figure 9 BB line section view.

[0089] like Figure 1 , Figure 9 and Figure 10 As shown, the housing 10 can be mounted and attached to the fixed frame 61. The side cover 62 can be attached to the edge of the fixed frame 61. The rotating component 63 can be inserted into the inner diameter portion of the side cover 62. The edge portion of the rotating component 63 can be assembled to insert into the interior of the side cover 62.

[0090] A first guide rail portion 631 and a second guide rail portion 632 may be provided on the upper and lower parts of the edge of the rotating component 63. The first guide rail portion 631 may be rotatably supported by a first ball bearing B1 disposed inside the frame cover 62. The second guide rail portion 632 may be rotatably supported by a second ball bearing B2 disposed inside the fixed frame 61.

[0091] The rotating component 63 can be connected to the rotating plate 64. The rotating component 63 can rotate together with the rotating plate 64.

[0092] The rotation operation of the present invention will be described below.

[0093] like Figure 1 and Figure 2 As shown, since the pinion PG of motor M meshes with the gear teeth 211 of clutch gear 20, when motor M is driven, the power of motor M can be transmitted to clutch gear 20, thereby causing clutch gear 20 to rotate in the direction of brake release.

[0094] like Figure 4 As shown, as the clutch gear 20 rotates toward the brake release direction, the roller 82 of the brake component 80, which is in a wedged state between the inner diameter of the brake ring 30 and the support surface 42, is pushed to the support groove 421 by the pressure protrusion 23.

[0095] When the roller 82 is pressed into the support groove 421 by the pressure protrusion 23, the wedge-tight state of the protrusion can be released. This allows the vehicle seat (not shown) to rotate in a brake-released state.

[0096] When the brake is released, the rotational force of the clutch gear 20 is transmitted to the rotating plate 64, which is connected to the clutch gear 20 via the engagement member 70, thereby causing the rotating plate 64 to rotate.

[0097] As the rotating plate 64 rotates, the vehicle seat (not shown) connected to the rotating plate 64 can also rotate.

[0098] The above description is merely illustrative of the technical spirit of the present invention, and those skilled in the art can make various modifications, alterations, and substitutions without departing from the essential characteristics of the invention. Therefore, the embodiments and drawings disclosed in this invention are not intended to limit but rather to illustrate the technical spirit of the invention, and the scope of the technical spirit of the invention should not be limited by the above embodiments and drawings. The scope of protection of this invention should be interpreted by the scope of the appended claims, and it should be interpreted that all technical ideas within the same scope should be included within the scope of the claims of this invention.

Claims

1. A power rotation device for a vehicle seat, characterized in that, The power rotating device for a vehicle seat includes: a housing having at least one cutout at an inner diameter portion of the housing; a clutch gear in which at least a portion of gear teeth provided at an inner diameter portion of the clutch gear is exposed through the cutout and engaged with a pinion of a motor in a state in which the clutch gear is inserted into an inside of the housing; and a brake module inserted into the inside of the housing and including a brake drum, in which the brake drum is provided with a stopper that limits further rotation of the brake drum in a hard stop state in which the brake drum stops operation.

2. The power rotating device for a vehicle seat according to claim 1, characterized by The housing includes: a first accommodation portion provided inside and toward an inner diameter portion and for insertion of the clutch gear; and a second accommodation portion communicated with the first accommodation portion and provided inside toward an edge side while forming a step with the first accommodation portion and formed higher than the first accommodation portion.

3. The power rotating device for a vehicle seat according to claim 2, characterized by The brake module further includes a brake ring inserted into the second accommodation portion, the brake drum is disposed on the clutch gear in a state in which the clutch gear is inserted into the first accommodation portion and assembled at the same height as the brake ring.

4. The power rotating device for a vehicle seat according to claim 1, characterized by The brake drum is provided with at least one stopper at a portion corresponding to an inner diameter portion of the pinion, the stopper configured to surround at least a portion of the pinion.

5. The power rotating device for a vehicle seat according to claim 1, characterized by The clutch gear is formed of a double injection molding structure of a gear portion and a body portion surrounding an edge portion of the gear portion.

6. The power reclining device for vehicle seats according to claim 1, characterized by A position switch for preventing misoperation of the clutch gear is provided, and when the clutch gear stops while the position switch is in an on state, an abnormal position is determined, and when the clutch gear stops while the position switch is in an off interval, a normal position is determined.

7. The power rotating device for a vehicle seat according to claim 3, characterized by A brake member is provided between an inner diameter portion of the brake ring and an outer diameter portion of the brake drum, the brake member being in a braking state when between pressing protrusions provided along one edge of the clutch gear and being in a released braking state when pushed by the pressing protrusions when the clutch gear rotates.

8. The power rotating device for a vehicle seat according to claim 7, characterized by The brake member includes: a resilient member; and rollers provided on both sides of the resilient member in a manner toward the pressing protrusions and elastically supported by the resilient member.

9. The power rotating device for a vehicle seat according to claim 8, characterized by The brake drum is provided with a support surface at an outer diameter portion thereof, the rollers being clamped between the inner diameter portion of the brake ring and the support surface to form a braking state, and when the rollers are pushed by the pressing protrusions to a support groove formed at one end portion of the support surface, the clamping is released to form a released braking state.

10. The power rotating device for a vehicle seat according to claim 3, characterized by In a state in which the clutch gear, the brake ring, and the brake drum are inserted and assembled inside the housing, a cover is coupled to an upper surface of the housing.

11. The power rotating device for a vehicle seat according to claim 10, characterized by The cover is disposed on an upper surface of the brake ring, the pressing protrusions of the clutch gear, and a seating surface formed at an edge of the brake drum.

12. The power rotating device for a vehicle seat according to claim 10, characterized by A buckle is provided along an outer diameter portion of the cover, a coupling hole formed at the buckle being coupled to a coupling protrusion formed at an outer diameter portion of the housing.

13. The power rotating device for a vehicle seat according to claim 10, characterized by The housing is disposed and coupled to a fixed frame, a bezel cover is coupled to the edge of the fixed frame, a rotating part is inserted into the inner diameter of the bezel cover, and the edge portion of the rotating part is inserted and assembled into the inside of the bezel cover.

14. The power rotating apparatus for a vehicle seat according to claim 13, characterized by First and second guide rail portions are provided on the upper and lower edge portions of the rotating part, the first guide rail portion is rotatably supported by first balls provided in the inside of the bezel cover, and the second guide rail portion is rotatably supported by second balls provided in the inside of the fixed frame.

15. The power rotating apparatus for a vehicle seat according to claim 13, characterized by The rotating part is connected to a rotating plate, and the rotating plate is connected to a vehicle seat.

Citation Information

Patent Citations

  • Seat swivel mechanism for vehicle seat

    KR1020200078903A