Vehicle seat adjustment assembly

Abstract

The present disclosure provides a "vehicle seat adjustment assembly." A vehicle seat is provided herein. The vehicle seat includes a seat back pivotally coupled to a seat bottom. An adjustment assembly is operably coupled with the seat and includes a linear actuator. The linear actuator is configured to release a recliner mechanism when moved in a first direction and is configured to release a track assembly when moved in a second direction.

Description

Technical Field

[0001] This disclosure generally relates to a vehicle seat, and more specifically to a vehicle seat having an adjustment assembly for adjusting the seat back and / or the seat bottom. Background Technology

[0002] Vehicle seats typically include a reclining mechanism for selectively adjusting the angular position of the seat back relative to the seat floor, allowing the user to recline or tilt the seat back. Manually operated reclining mechanisms usually have a locked position where the seat back cannot pivot, and an unlocked position where the seat back can pivot. The user manually releases the reclining mechanism to unlock it, allowing adjustment of the seat back position. Releasing the lever relocks the reclining mechanism, thus holding the seat back in the adjusted position. Vehicle seats may also be movably connected to the vehicle floor for adjusting the seat in forward / rear positions. Summary of the Invention

[0003] According to one aspect of this disclosure, a vehicle seat is provided. The vehicle seat includes a seat back pivotally coupled to a seat base. An adjustment assembly is operatively coupled to the seat and includes a linear actuator. The linear actuator is configured to release a reclining mechanism when moved in a first direction and is configured to release the track assembly when moved in a second direction.

[0004] According to another aspect of this disclosure, a vehicle seat is provided. The vehicle seat includes a seat back pivotally coupled to a seat base. An adjustment assembly is operatively coupled to the seat and configured to pull a reclining arm when moved in a first direction and to pull a track assembly arm when moved in a second direction. A line is operatively coupled to the reclining arm and reclining mechanism to release the seat back relative to the seat base. A release lever is operatively coupled to the track assembly arm.

[0005] According to another aspect of this disclosure, a vehicle seat is provided. The vehicle seat includes a seat back pivotally connected to a seat base. An adjustment assembly includes a rack and pinion configured to release a first feature and a second feature when the rack is moved in a first direction and a second direction. The rack defines a pinion cavity and a first guide and a second guide. The first guide is disposed on a side of the pinion cavity opposite to the second guide.

[0006] After studying the following description, claims and drawings, those skilled in the art will understand and appreciate these and other aspects, objects and features of the invention. Attached Figure Description

[0007] In the attached diagram:

[0008] Figure 1 It is a side perspective view of the seats in a vehicle with an integrated adjustment assembly, based on some examples;

[0009] Figure 2 yes Figure 1 Top perspective view of the seat;

[0010] Figure 3 It is a partial side plan view of the seat frame based on some example seats;

[0011] Figure 4 It is an enlarged front perspective view of a reclining mechanism incorporated into a seat, based on some examples;

[0012] Figure 5 This is a flowchart illustrating methods for adjusting the tilt of a seat back according to some examples;

[0013] Figure 6 This is a top perspective view of a reclining chair based on some examples, showing the adjustment of the seat back's tilt.

[0014] Figure 7 This is a top perspective view of a reclining chair based on some examples, showing the adjusted position;

[0015] Figure 8 This is a partial side plan view of a seat frame employing an adjustment assembly with a rack, according to some examples, wherein the rack is positioned in a first position to actuate the reclining mechanism;

[0016] Figure 9 This is a partial side plan view of a seat frame employing an adjustment assembly with a rack, according to some examples, wherein the rack is positioned in a second position to actuate the track assembly;

[0017] Figure 10 This is a front enlarged perspective view of the adjustment assembly and track assembly based on some examples;

[0018] Figure 11 This is a flowchart illustrating a method for adjusting a seat along a track assembly, based on some examples;

[0019] Figure 12 This is a perspective view of the adjusted assembly based on some examples;

[0020] Figure 13 This is a perspective view of an adjustment assembly with the housing removed, based on some examples;

[0021] Figure 14 It is a side plan view of the adjustment assembly in the neutral position with the motor assembly removed, based on some examples;

[0022] Figure 15 It is a side plan view of the adjustment assembly in the first adjustment position, based on some example settings; and

[0023] Figure 16 This is a side plan view of the adjustment assembly in the second adjustment position, based on some example settings. Detailed Implementation

[0024] For illustrative purposes, the terms “up,” “down,” “right,” “left,” “back,” “front,” “vertical,” “horizontal,” and their derivatives should be used as follows: Figure 1 The orientations described herein are related to the present invention. However, it should be understood that various alternative orientations may be assumed in the invention unless explicitly stated otherwise. It should also be understood that the specific devices and processes shown in the drawings and described in the following description are merely exemplary examples of the inventive concept defined in the appended claims. Therefore, specific dimensions and other physical characteristics relating to the examples disclosed herein should not be considered limiting unless explicitly stated otherwise in the claims.

[0025] Detailed examples of the invention are disclosed herein, if needed. However, it will be understood that the disclosed examples are merely illustrative of the various and alternative forms in which the invention may be implemented. The accompanying drawings are not necessarily detailed designs, and some schematic diagrams may be enlarged or minimized to show a functional overview. Therefore, the specific structural and functional details disclosed herein should not be construed as limiting, but merely as a representative basis for teaching those skilled in the art to employ the invention in different ways.

[0026] In this document, relational terms such as first and second, top and bottom, etc., are used only to distinguish one entity or action from another and do not necessarily require or imply any actual such relationship or order between such entities or actions. The terms “comprises,” “comprising,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article of manufacture, or apparatus that includes a list of elements includes not only those elements but may also include other elements not expressly listed or inherent to such process, method, article of manufacture, or apparatus. Without further constraints, an element preceding “comprises…” does not exclude the presence of additional identical elements in the process, method, article of manufacture, or apparatus that includes that element.

[0027] As used herein, the term "and / or," when used in a list of two or more items, means that any one of the listed items may be used alone, or any combination of two or more of the listed items may be used. For example, if a composition is described as containing components A, B, and / or C, then the composition may contain: A only; B only; C only; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C.

[0028] The following describes a vehicle seat employing an adjustment assembly. The vehicle seat includes a seat back pivotally connected to a seat base. The seat can be operatively coupled to a track assembly. The adjustment assembly is operatively coupled to one or more switches for controlling the adjustment assembly. In some examples, the adjustment assembly may include a rack and pinion assembly. When the pinion rotates in a first direction, a reclining mechanism can be released and the seat back can be adjusted relative to the seat base. When the pinion rotates in a second, opposite direction, the seat can be released from the track assembly and slide along it. Thus, in some examples, a single motor can be capable of controlling multiple features of the seat.

[0029] refer to Figures 1 to 16 Reference numeral 10 generally indicates a seat for vehicle 12. Seat 10 includes a seat base 14 and a seat back 16 pivotally coupled to the seat base 14. Seat 10 also includes an adjustment assembly 18 for adjusting the tilt of the seat back 16 relative to the seat base 14. The adjustment assembly 18 is operatively coupled to a lockable recliner mechanism 20. The adjustment assembly 18 includes a motor 22 for selectively unlocking the recliner mechanism 20 and allowing manual adjustment of the tilt of the seat back 16 when the motor 22 is rotated in a first direction. The seat base 14 can be configured to be mounted on a supporting surface, such as the floor 24 of vehicle 12. A rail assembly 26 can be coupled to the seat base 14 to facilitate fore-aft positioning of the seat 10. The motor 22 can be rotated in a second, opposite direction to release the seat 10 from the rail assembly 26 for manual movement in fore-aft / rear positions. However, it will be understood that the adjustment assembly 18 can be configured to release any first feature (e.g., seat back) when the motor 22 rotates in a first direction and / or release a second feature (e.g., seat bottom 14) when the motor 22 rotates in a second direction. The adjustment assembly 18 also includes one or more switches 28 electrically connected to the motor 22 for selectively energizing the motor 22.

[0030] refer to Figure 1 and Figure 2Seat 10 is typically configured in various vehicles 12 for use as a front driver's seat, front passenger seat, or rear seat, and typically includes a seat back 16 and a seat bottom 14, each having cushions 30 and 32, respectively. A headrest 34 is also mounted to the top of the seat back 16. Seat 10 is generally designed to provide passenger comfort and to accommodate and protect passengers during a collision.

[0031] Still referencing Figure 1 and Figure 2 The seat back 16 includes a first vehicle seat back support member and a second vehicle seat back support member 36, 38 disposed on opposite lateral sides of the seat 10 and having a substantially mirror image configuration relative to each other. The first and second vehicle seat back support members 36, 38 form part of the frame of the seat back 16 and are generally designed to provide support to the occupant's back and help protect the occupant during a collision event. Each of the first and second vehicle seat back support members 36, 38 includes a reclining mechanism hole 40 disposed near its bottom and adapted to receive a reclining mechanism 20, commonly referred to in the art as a "reclining center portion". The reclining mechanism 20 is secured to the first and second vehicle seat back support members 36, 38 via laser welding or other suitable fastening means. The reclining mechanism 20 provides an interface between the first and second vehicle seat back support members 36, 38 and the seat bottom 14.

[0032] Further reference Figure 1 and Figure 2 According to some examples, switch 28 is shown as an electronic push button; however, it should be understood that any suitable input device, such as a toggle switch, rocker switch, or microswitch, may also be used. Switch 28 is electrically connected to motor 22 for selectively actuating motor 22. In some examples, switch 28 may additionally and / or alternatively be configured as a capacitive sensor. The capacitive sensor provides a sensing activation field encompassing the area adjacent to switch 28 and can detect capacitance changes caused by a conductor (such as an occupant's finger) within the sensing activation field of the capacitive sensor. However, it should be understood that other or alternative types of proximity sensors (such as, but not limited to, inductive sensors, optical sensors, temperature sensors, resistive sensors, etc., or combinations thereof) may be used to detect a variety of other signal changes.

[0033] Switch 28 is shown mounted to a side panel 42, which is positioned on the lateral side of the seat bottom 14. Side panel 42 may be a decorative interior trim piece; however, it may also include various holes and connection points for securing various mechanical devices to the holes and for securing side panel 42 to the seat 10. Switch 28 may be mounted slightly recessed into the surface of side panel 42, thereby eliminating or at least reducing the possibility of unintentional actuation of switch 28. Alternatively, switch 28 may be located in other interior locations, such as in the door, dashboard 44, steering wheel 46, center console 48, and / or any other suitablely accessible location. It is conceivable that switch 28 is an on / off type switch, actuated by an occupant to "on" and released to "off". Furthermore, switch 28 may be provided in various colors and textures, may include a chrome ring or trim, and / or may be illuminated.

[0034] refer to Figures 2 to 4 The seat back 16 rotates about the reclining shaft 50 of the seat back in response to the occupant's movements. Shaft 50 can extend between the seat back support members 36, 38 of the seat 10 and operatively connect to the reclining mechanism 20. In some examples, the adjustment assembly 18 is operatively connected to the reclining mechanism 20 via line 52. When the first switch 28 is actuated, the motor 22 can pull the reclining arm 54, which in turn generates tension on line 52. By pulling line 52, the first portion 56 of the reclining mechanism 20 rotates relative to the second portion 58, while the second portion 58 temporarily releases the seat back 16 and allows manual rotation. The seat back 16 can be biased forward or backward by a spring 60. Once the retraction switch 28 is actuated, the adjustment assembly 18 returns the seat back reclining mechanism 20 to its original or stationary, i.e., locked position, thereby locking the seat back 16 in the desired position.

[0035] Further reference Figure 3The adjustment assembly 18 may include a track assembly arm 62 extending from the side of the housing 64 opposite to the recliner arm 54. A motor 22 is disposed between the recliner arm 54 and the track assembly arm 62. The recliner arm 54 is also coupled to an extension assembly 66, which, when rotated, pulls a cable 52. When the cable 52 is pulled, the first portion 56 of the recliner mechanism 20 rotates relative to the second portion 58, thereby placing the seat back 16 in the unlocked position. Similarly, the track assembly arm 62 is operatively coupled to a track release assembly 68, which, when rotated, allows the seat 10 to slide along the track assembly 26 in a forward or backward direction. In some examples, the extension assembly 66 may be activated by a first switch 28 and the rotation assembly may be activated by a second switch 28. When the first switch 28 is activated, the motor 22 may rotate in a first direction. When the second switch 28 is activated, the motor 22 may rotate in a second, opposite direction. Due to the opposing motion of motor 22, in some cases, when seat 10 slides freely along track assembly 26, seat back 16 can be placed in a locked position. Similarly, when seat back 16 is freely rotatable, seat 10 can be locked to track assembly 26.

[0036] refer to Figure 4 Spring 60 can be wound around and biased about recliner shaft 50 to return recliner mechanism 20 to the locked position. Therefore, when switch 28 is deactivated, spring 60 helps return the first portion 56 of recliner mechanism 20 to the locked position. In some examples, recliner shaft 50 may have multiple teeth around and at its ends. These teeth can engage with gears disposed within the first portion 56 of recliner mechanism 20 to aid in moving seat back 16 between various positions.

[0037] refer to Figures 5 to 8 During operation, the occupant may wish to adjust the tilt of the seat back 16 relative to the seat bottom 14. According to Figure 5 In the example shown, a method 70 for adjusting the tilt of the seat back 16 begins at step 72. In this... Figure 2 In the initial seat back position shown, the reclining mechanism 20 is locked, and the seat back 16 cannot move freely. To adjust the seat back 16, the occupant can press switch 28, as described in step 72, thereby in step 74 and as... Figure 5 The excitation motor 22 shown is rotated in the first direction. In step 76, the rotating motor 22 causes the tilting arm 54 ( Figure 8The first end 78 of the first switch 28 is operatively connected to the second end 80 of the recliner mechanism 20. The second end 80 of the second end 80 is operatively connected to one or both of the recliner mechanisms 20 and moves the first portion 56 of the recliner mechanism 20 from a first position to a second position, thereby effectively unlocking the recliner mechanism 20. When the switch 28 is actuated, the recliner mechanism 20 remains unlocked. In step 82, with the first switch 28 actuated and the recliner mechanism 20 unlocked, the occupant can manually adjust the seat back 16 to the desired tilt angle, regardless of whether it is reclined more or less. The recliner mechanism 20 and therefore the seat back 16 are biased toward an upright position, so the occupant can manually push the seat back 16 back to further recline the seat back 16. Once the desired tilt angle is reached, the switch 28 can be released, as in step 84. Figure 6 As shown, this locks the seat back 16 in the adjusted position. In step 86, releasing switch 28 causes motor 22 to rotate in the opposite second direction. Motor 22 rotates back to the neutral position, thereby relocking the recliner mechanism 20 and seat back 16 relative to the seat bottom 14, as in step 88. In step 90, if further adjustment is required, method 70 can be repeated by cycling back to step 72 to actuate switch 28.

[0038] refer to Figures 8 to 10 The track assembly arm 62 includes a connector arm 92 coupled to a release lever 94. The release lever 94 may be a rigid member further coupled to a spring member 96. The spring member 96 is coupled to the release lever 94 to bias the release lever 94 into a locked position. In use, when the second switch 28 is actuated, the motor 22 rotates in a second direction. In response, the track assembly arm 62 rotates the connector arm 92. The connector arm 92 is operatively coupled to the release lever 94, which pivots together with the connector arm 92 in a rearward direction, causing the track release lever 98 to move from the locked position to the released position. When in the locked position, the track release lever 98 locks the seat 10 in its current position on the assembly. In the released position, the track release lever 98 allows the seat 10 to move freely along the track assembly 26 in the fore-and-aft direction (i.e., vehicle forward and vehicle rearward).

[0039] refer to Figure 11 During operation, occupants may wish to maintain a relative position to the vehicle floor 24 ( Figure 1 Adjust the seat 10 ( Figure 1 The position before / after ) . According to Figure 11The example shown illustrates a method 100 for adjusting the forward / rear position of seat 10 relative to vehicle floor 24, beginning at step 102. In the initial seat position, seat 10 is locked to vehicle floor 24 via track assembly 26, and seat 10 cannot move freely. To adjust seat 10, the occupant can press a second switch 28, as in step 102, thereby activating motor 22 in step 104 and rotating motor 22 in a second direction. In step 106, rotating motor 22 moves track assembly arm 62, which is operatively coupled to connector arm 92. Connector arm 92 moves release lever 94 from a first position to a second position, thereby effectively unlocking track assembly 26. When switch 28 is pressed, release lever 94 remains unlocked. In step 108, with switch 28 pressed and release lever 94 unlocked, the occupant can manually adjust seat 10 to a forward / rear position, regardless of whether it is more forward or more rearward than the original position. Seat 10 can be offset towards the forward (or vehicle-forward) position, so the occupant can manually push seat 10 backward to move it further away from steering wheel 46. Once the desired position is reached, switch 28 can be actuated, as in step 110, to lock seat 10 in the adjusted position. In step 112, releasing switch 28 causes motor 22 to rotate in the first direction. Motor 22 rotates back to the neutral position, thereby re-locking release lever 94 and seat 10 relative to vehicle floor 24, as in step 114. In step 116, if further adjustment is required, method 100 can be repeated by cycling back to step 102 to actuate switch 28.

[0040] refer to Figure 12 and Figure 13 The housing 64 of the adjustment assembly 18 can be operatively coupled to the pinion cover 115. The pinion cover 115 and / or any other part of the adjustment assembly 18 can be operatively coupled to a plate 117 or bracket, which is further coupled to a portion of the seat 10 and / or the vehicle 12 for removably anchoring the adjustment assembly 18 in a fixed position. Thus, without departing from the scope of this disclosure, the adjustment assembly 18 can move together with the seat 10 and / or the seat 10 can move independently of the adjustment assembly 18.

[0041] Rack 118 and pinion 120 ( Figure 14The connecting shaft 122 can be positioned between the gear cover and the housing 64. The connecting shaft 122 extends from the motor 22 and is coupled to the pinion 120. The motor 22 can be a servo motor or a stepper motor; however, any suitable type of motor 22 may be used without departing from the scope of this disclosure. The motor 22 is capable of controlling the angular position of the connecting shaft 122. As an example, the motor 22 can be an integrated stepper motor that achieves high micro-stepping resolution with all controls and electronics mounted within the motor 22 itself.

[0042] The pinion cover 115 may include a first surface 124 extending parallel to the pinion 120 and its bottom, a second surface 126 extending from the first surface 124 and / or transverse to the pinion 120, and a third surface 128 that may be parallel to the first surface 124. The first surface 124 may define one or more holes through which fasteners can be inserted to attach the pinion cover 115 to the plate 117. The motor 22 may be operatively attached to the third surface 128 by one or more fasteners 130 and includes a motor housing 132 surrounding at least a portion of the motor 22.

[0043] Rack 118 defines pinion cavity 134. When pinion 120 engages with tooth 136 on rack 118... Figure 14 During engagement, rack 118 can move in a linear direction. The rotational motion applied to pinion 120 causes rack 118 to move relative to pinion 120, thereby converting the rotational motion of pinion 120 into linear motion of rack 118 within pinion cavity 134.

[0044] A first channel 138 is defined by a rack 118 between a first end 140 of the rack 118 and a pinion cavity 134. A first guide 142 is also defined by a rack 118 between the first end 140 of the rack 118 and the pinion cavity 134. A first end 144 of a reclining arm 54 is disposed within the channel. A first pin 146 extends laterally from a first portion of the reclining arm 54 and enters the first guide 142. In some examples, the axis of the first channel 138 is parallel to the direction of movement of the rack 118 along the pinion 120. A pivot assembly 148 is pivotally connected to a second end 150 of the reclining arm 54. The pivot assembly 148 is further pivotally connected to a rotation axis 152, which may be located below the reclining arm 54. The pivot assembly 148 may include a first portion 154 and a second portion 156. The second portion 156 may have a connecting portion 158 for removably securing a wire 52 thereto. The groove 160 can be disposed within the second part. When the tilt arm 54 moves, causing the pivot assembly 148 to rotate, the line 52 can be disposed within the groove 160.

[0045] Support bracket 162 is disposed on the outside of pivot assembly 148. Support bracket 162 may be operatively coupled to and / or integrally formed with pinion cover 115. Housing 64 may also include extension 164 extending between a first portion and a second portion of pivot assembly 148 when housing 64 is coupled to pinion cover 115. Extension 164 may abut support bracket 162 and / or be disposed very close to support bracket 162. Furthermore, support bracket 162 may define channel 165 having a tapered upper portion and a rounded bottom portion. The rounded bottom portion may have a width less than that of stop 166 on line 52. Thus, pulling stop 166 through channel 165 may be substantially prohibited and / or pulling any portion of line 52 through channel 165 may be prohibited.

[0046] Further reference Figure 12 and Figure 13 Spring 168 can be operatively coupled to pivot assembly 148. Spring 168 can be configured as a tension spring; however, any type of assembly can be used in conjunction with and / or in place of spring 168 without departing from the scope of this disclosure. Spring 168 can be operatively coupled on a first side to attachment feature 170 on a second portion of pivot assembly 148 and on the opposite second side to housing attachment feature 172. The tension spring can be used to bias pivot assembly 148 in a desired position, such as a retracted position for line 52, which in turn biases the reclining mechanism 20 to a locked position.

[0047] Still referencing Figure 12 and Figure 13 The rack 118 may also define a second channel 174 and a second guide 176 disposed on a second end 178 of the rack 118. A first end 180 of the track assembly arm 62 is disposed within the second channel 174. A second pin 182 is coupled to the first end 180 of the track assembly arm 62 and disposed within the second guide 176. The second end 184 of the track assembly arm 62 is pivotally coupled to a connector arm 92. The connector arm 92 is also coupled to a release lever 94. In some examples, the connector arm 92 and / or the release lever 94 may be biased in a locked position, which may correspond to the connector arm 92 being oriented in a vertical position.

[0048] refer to Figures 14 to 16The adjustment assembly 18 provided herein can be a linear actuator, which can be configured as a rack 118 and a pinion 120. However, any type of linear actuator can be used without departing from the scope of this disclosure. Thus, the rack 118 can be driven by the pinion 120 in two opposite directions based on the direction of rotation of the pinion 120. As shown, the pinion 120 includes a periphery having pinion teeth 186 thereon. The teeth 186 of the pinion 120 are configured to mesh with / correspond to the teeth 136 of the rack 118. In some examples, when the pinion 120 rotates, the pinion teeth 186 mesh with the teeth 136 of the rack 118 to linearly move the rack 118. It should be noted that, depending on the specific application, the rack 118 may include toothed or toothless meshing surfaces. Similarly, the pinion 120 can be a gear or a friction wheel.

[0049] During operation, adjustment assembly 18 can be set to the neutral position, such as... Figure 14 As shown in the diagram. In the neutral position, both the reclining mechanism 20 and the track assembly 26 are in a locked position. In the neutral position, the pinion 120 can be positioned in the middle of the pinion cavity 134. To adjust the position of the seat back, the pinion 120 rotates in a first direction (e.g., clockwise), as indicated by arrow 188. As the pinion 120 rotates, the rack 118 moves in a first linear direction, as indicated by arrow 190. As the rack 118 moves along arrow 190, the first pin 146 in the first channel 138 contacts the end 196 of the first channel 138. When the first pin 146 contacts the first channel 138, it pulls the reclining arm 54, thereby rotating the pivot assembly 148, which can be in the opposite direction to the pinion 120. When the pivot assembly 148 rotates, it pulls the cable 52, thereby releasing the reclining mechanism 20 so that the seat back 16 can be adjusted. As provided herein, when switch 28 is activated and the first pin 146 pulls the recliner arm 54, the seat back 16 can be manually adjusted. Once the desired position is achieved, switch 28 is deactivated. When switch 28 is deactivated, pinion 120 returns to the neutral position, such as in... Figure 14 The seat back 16 returns to the locked position as exemplarily shown in the diagram.

[0050] To adjust the seat 10 along the track assembly 26, the pinion 120 rotates in a second direction (e.g., counterclockwise, as indicated by arrow 192). As the pinion 120 rotates, the rack 118 moves in a second linear direction (as indicated by arrow 194). As the rack 118 moves along arrow 194, the second pin 182 within the second channel 174 contacts the end 198 of the second channel 174. Upon contact with the second channel 174, the second pin 182 pulls the track assembly arm 62, thereby rotating the connector arm 92 and / or the release lever 94, each of which can rotate in a direction opposite to the direction of rotation of the pinion 120. When the release lever 94 rotates, the track assembly 26 is placed in the unlocked position, allowing the seat 10 to be adjusted along the track assembly 26. As provided herein, the seat 10 can be manually adjusted when the second switch 28 is compressed and the rack 118 pulls the track assembly arm 62. Once the desired position is achieved, the second switch 28 is deactivated. When switch 28 is deactivated, pinion 120 returns to the neutral position, such as in... Figure 14 The position is shown in the example, and the seat 10 returns to the locked position.

[0051] In some examples, a third switch 28 can be actuated to control each feature after the others. For example, to assist an occupant entering vehicle 12, the occupant can actuate the third switch 28, which in turn releases the recliner mechanism 20. As provided herein, the recliner mechanism 20 can be biased in a forward direction. Thus, the seat back 16 can be rotated forward in the vehicle. Upon completion of rotating the seat back 16 forward in the vehicle, the adjustment assembly 18 can release the track assembly 26. As provided herein, the track assembly 26 can be biased in a forward direction in the vehicle. Thus, as the seat back 16 is positioned in a forward-oriented position, the seat 10 can also be moved forward in the vehicle, thereby providing additional space for the occupant to enter from the rear of the vehicle from the seat 10. It will be understood that, without departing from the scope of this disclosure, the seat back 16 and / or the seat 10 can be moved in any order and biased in any direction. It will be understood that the recliner mechanism 20 can be released before the track assembly 26, and / or vice versa. In addition, the vehicle seat 10 can be programmed to move to a predefined position when the occupant approaches and / or leaves the vehicle 12.

[0052] Various advantages can be obtained by using this disclosure. For example, the disclosed seat adjustment assembly can provide a variety of movements of the vehicle seat to accommodate a wide range of passengers. The seat adjustment assembly can save costs, resources and materials, and is generally more efficient than standard conventional seat assemblies that include separate movement assemblies.

[0053] Based on various examples, this document provides a vehicle seat. The vehicle seat includes a seat back pivotally coupled to a seat base. An adjustment assembly is operatively coupled to the seat and includes a linear actuator. The linear actuator is configured to release a reclining mechanism upon movement in a first direction and is configured to release the track assembly upon movement in a second direction. Examples of vehicle seats may include any one or a combination of the following features:

[0054] ●The linear actuator is configured as a rack and pinion, the pinion being driven by a motor;

[0055] ●The reclining mechanism includes a shaft extending between the central portions of a pair of reclining members;

[0056] ●The adjustment assembly is operatively coupled to the recliner mechanism via a line, and the linear actuator is configured to pull the recliner arm to generate a force on the line to rotate the first part of the recliner mechanism relative to the second part of the recliner mechanism to release the seat back.

[0057] ● A first switch electrically connected to the adjustment assembly for moving the linear actuator in a first direction; and a second switch electrically connected to the adjustment assembly for moving the linear actuator in a second direction;

[0058] ●A third switch, connected to the adjustment assembly, is configured to move the linear actuator in a first direction to release the tilt mechanism, and then move the linear actuator in a second direction to release the track assembly;

[0059] ●The rack defines a pinion cavity, a first channel and a second channel, as well as a first guide and a second guide, wherein the first channel and the first guide are disposed on the side of the pinion cavity opposite to the second channel and the second guide;

[0060] ● The reclining arm is disposed within the first channel, and a first pin is operably connected to the reclining arm, the first pin extending into the first guide;

[0061] ●The track assembly arm is disposed within the second channel, and the second pin is operably connected to the track assembly arm, the second pin extending into the second guide;

[0062] ●The rack is configured to move linearly in a first direction such that the first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction;

[0063] ● The rack is configured to move linearly in a second direction, such that the second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction; and / or

[0064] ● Pivot assembly comprising a first portion connected to a reclining arm, and a second portion having a connecting portion for removably securing a line thereto, wherein the line is operatively connected to the reclining mechanism.

[0065] Furthermore, this document provides a method for manufacturing a vehicle seat. The method includes pivotally connecting a seat back to a seat base. An adjustment assembly is operatively connected to the seat and includes a linear actuator. The linear actuator is configured to release a reclining mechanism when moved in a first direction and is configured to release a track assembly when moved in a second direction.

[0066] According to some examples, this document provides a vehicle seat. The vehicle seat includes a seat back pivotally coupled to a seat base. An adjustment assembly is operatively coupled to the seat and configured to pull a reclining arm when moved in a first direction and to pull a track assembly arm when moved in a second direction. A line is operatively coupled to the reclining arm and reclining mechanism to release the seat back relative to the seat base. A release lever is operatively coupled to the track assembly arm. Examples of vehicle seats may include any one or a combination of the following features:

[0067] ●The seat back is locked relative to the bottom of the seat, and the rail assembly is locked in a neutral position relative to the vehicle floor;

[0068] ● The adjustment assembly includes a rack defining a pinion cavity, a first channel and a second channel, and a first guide and a second guide, the first channel and the first guide being disposed on the side of the pinion cavity opposite to the second channel and the second guide; and / or

[0069] ● The rack is configured to move linearly in a first direction such that a first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction; and to move linearly in a second direction such that a second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

[0070] According to other examples, this document provides a vehicle seat. The vehicle seat includes a seat back pivotally coupled to a seat base. An adjustment assembly includes a rack and pinion configured to release a first feature and a second feature when the rack moves in a first direction and a second direction. The rack defines a pinion cavity and a first guide and a second guide. The first guide is disposed on a side of the pinion cavity opposite to the second guide. Examples of vehicle seats may include any one or a combination of the following features:

[0071] ● The reclining arm is disposed within the first channel, and a first pin is operably connected to the reclining arm, the first pin extending into the first guide;

[0072] ● The rail assembly arm is disposed within the second channel, and a second pin is operably connected to the rail assembly arm, the second pin extending into the second guide; and / or

[0073] ● The rack is configured to move linearly in the first direction such that the first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction; and to move linearly in the second direction such that the second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

[0074] Those skilled in the art will understand that the construction of the invention and other components is not limited to any particular material. Unless otherwise described herein, other exemplary examples of the invention disclosed herein can be formed from a variety of materials.

[0075] For the purposes of this disclosure, the term "couple" (in all its forms, including couple, coupling, coupled, etc.) generally refers to the direct or indirect connection between two components (electrical or mechanical). Such a connection may be inherently fixed or inherently movable. This connection may be achieved by two components (electrical or mechanical), and any additional intermediate component may form a single unit with or between the two components. Unless otherwise stated, such a connection may be inherently permanent, or inherently removable or detachable.

[0076] Furthermore, any arrangement of components that perform the same function is effectively “associated” to achieve the desired function. Therefore, any two components combined herein to achieve a particular function can be considered “associated” with each other to achieve the desired function, regardless of the architecture or intermediate components. Similarly, any two such associated components can also be considered “operably connected” or “operably coupled” to each other to achieve the desired function, and any two components that can be suchly associated can also be considered “operably coupled” to each other to achieve the desired function. Some examples of operably coupled components include, but are not limited to, physically pairable and / or physically interactive components and / or wirelessly interactive and / or logically interactive and / or logically interactive components. Furthermore, it will be understood that components preceding the term “in…” can be located in any feasible location (e.g., on a vehicle, inside a vehicle, and / or outside a vehicle) such that the component can function in any manner described herein.

[0077] Equally important, it should be noted that the construction and arrangement of the elements of the invention as illustrated in the exemplary examples are merely illustrative. While only a few examples of the invention have been described in detail in this disclosure, those skilled in the art will readily appreciate that many modifications (e.g., variations in the size, dimensions, structure, shape and proportions, parameter values, mounting arrangements, material use, color, orientation, etc.) of the various elements are possible without substantially departing from the novel teachings and advantages of the subject matter. For example, an element shown as integrally formed may be constituted by multiple portions or elements shown, the portions may be integrally formed, the operation of the interface may be reversed or otherwise varied, the structure of the system and / or the length or width of components or connectors or other elements may be varied, and the nature or number of adjustment positions provided between the elements may be varied. It should be noted that the elements and / or assemblies of the system may be constructed from any of a variety of materials that provide sufficient strength or durability in any of a variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of this innovation. Other substitutions, modifications, alterations, and omissions may be made in the design, operating conditions, and arrangements of the desired and other exemplary examples without departing from the spirit of the invention.

[0078] It will be understood that any of the described processes or steps can be combined with other disclosed processes or steps to form a structure within the scope of this invention. The exemplary structures and processes disclosed herein are for illustrative purposes and are not to be construed as limiting.

[0079] It will be understood that changes and modifications may be made to the foregoing structures and methods without departing from the concept of the invention, and it will also be understood that such concept is intended to be covered by the appended claims unless those claims expressly indicate otherwise in their language.

[0080] According to the present invention, a vehicle seat is provided having a seat back pivotally coupled to a seat bottom; and an adjustment assembly operably coupled to the seat and including a linear actuator configured to release a reclining mechanism when moved in a first direction and configured to release a track assembly when moved in a second direction.

[0081] According to an embodiment, the linear actuator is configured as a rack and pinion, the pinion being driven by a motor.

[0082] According to an embodiment, the reclining mechanism includes a shaft extending between the central portions of a pair of reclining members.

[0083] According to an embodiment, the adjustment assembly is operatively coupled to the recliner mechanism via a line, and the linear actuator is configured to pull the recliner arm to generate a force on the line to rotate the first portion of the recliner mechanism relative to the second portion of the recliner mechanism to release the seat back.

[0084] According to an embodiment, a first switch is electrically connected to the adjustment assembly for moving the linear actuator in a first direction; and a second switch is electrically connected to the adjustment assembly for moving the linear actuator in a second direction.

[0085] According to an embodiment, the invention is further characterized in that a third switch is connected to the adjustment assembly, the third switch being configured to move the linear actuator in a first direction to release the tilt mechanism, and then move the linear actuator in a second direction to release the track assembly.

[0086] According to an embodiment, the rack defines a pinion cavity, a first channel and a second channel, as well as a first guide and a second guide, wherein the first channel and the first guide are disposed on the side of the pinion cavity opposite to the second channel and the second guide.

[0087] According to an embodiment, the reclining arm is disposed within the first channel, and a first pin is operably connected to the reclining arm, the first pin extending into the first guide.

[0088] According to an embodiment, the track assembly arm is disposed within the second channel, and a second pin is operably connected to the track assembly arm, the second pin extending into the second guide.

[0089] According to an embodiment, the rack is configured to move linearly in a first direction such that the first pin contacts the end of the first guide, thereby pulling the tilting arm in the first direction.

[0090] According to an embodiment, the rack is configured to move linearly in a second direction such that the second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

[0091] According to an embodiment, the invention is further characterized in that the pivot assembly includes a first portion connected to the reclining arm, and a second portion having a connecting portion for removably securing a line thereto, wherein the line is operatively connected to the reclining mechanism.

[0092] According to the present invention, a vehicle seat is provided having a seat back pivotally connected to a seat bottom; an adjustment assembly operably connected to the seat and configured to pull a reclining arm when moved in a first direction and to pull a track assembly arm when moved in a second direction; a line operably connected to the reclining arm and reclining mechanism to release the seat back relative to the seat bottom; and a release lever operably connected to the track assembly arm.

[0093] According to an embodiment, the seat back is locked relative to the bottom of the seat, and the track assembly is locked in a neutral position relative to the vehicle floor.

[0094] According to an embodiment, the adjustment assembly includes a rack defining a pinion cavity, a first channel and a second channel, and a first guide and a second guide, the first channel and the first guide being disposed on the side of the pinion cavity opposite to the second channel and the second guide.

[0095] According to an embodiment, the rack is configured to move linearly in a first direction such that a first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction; and to move linearly in a second direction such that a second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

[0096] According to the present invention, a vehicle seat is provided having a seat back pivotally connected to a seat bottom; and an adjustment assembly including a rack and a pinion configured to release a first feature and a second feature when the rack is moved in a first direction and a second direction, wherein the rack defines a pinion cavity and a first guide and a second guide, the first guide being disposed on a side of the pinion cavity opposite to the second guide.

[0097] According to an embodiment, the reclining arm is disposed within a first channel, and a first pin is operably connected to the reclining arm, the first pin extending into the first guide.

[0098] According to an embodiment, the track assembly arm is disposed within the second channel, and a second pin is operably connected to the track assembly arm, the second pin extending into the second guide.

[0099] According to an embodiment, the rack is configured to move linearly in the first direction such that the first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction; and to move linearly in the second direction such that the second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

Claims

1. A vehicle seat, the vehicle seat comprising: The seat back is pivotally connected to the bottom of the seat; as well as An adjustment assembly, operably coupled to the seat and including a linear actuator configured to release the reclining mechanism when moved in a first direction and configured to release the track assembly when moved in a second direction; The linear actuator is configured as a rack and pinion, the pinion being driven by a motor, wherein the rack defines a pinion cavity, a first channel and a second channel, and a first guide and a second guide, the first channel and the first guide being disposed on the side of the pinion cavity opposite to the second channel and the second guide; The reclining arm is disposed within the first channel, and a first pin is operably connected to the reclining arm, the first pin extending into the first guide; The rail assembly arm is disposed within the second channel, and the second pin is operably connected to the rail assembly arm, the second pin extending into the second guide; The rack is configured to move linearly in a first direction such that the first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction; The rack is also configured to move linearly in a second direction such that the second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

2. The vehicle seat of claim 1, wherein the reclining mechanism includes a shaft extending between the central portions of a pair of reclining members.

3. The vehicle seat of claim 1 or 2, wherein the adjustment assembly is operatively coupled to the recliner mechanism via a line, the linear actuator being configured to pull the recliner arm to generate a force on the line to rotate a first portion of the recliner mechanism relative to a second portion of the recliner mechanism to release the seat back.

4. The vehicle seat as claimed in claim 1 or 2, wherein the vehicle seat further comprises: A first switch, electrically connected to the adjustment assembly, is used to move the linear actuator in a first direction; as well as A second switch, electrically connected to the adjustment assembly, is used to move the linear actuator in a second direction.

5. The vehicle seat as claimed in claim 4, further comprising: A third switch, connected to the adjustment assembly, is configured to move the linear actuator in a first direction to release the tilt mechanism, and then move the linear actuator in a second direction to release the track assembly.

6. The vehicle seat as claimed in claim 1 or 2, wherein the vehicle seat further comprises: A pivot assembly comprising a first portion connected to a reclining arm, and a second portion having a connecting portion for removably securing a line thereto, wherein the line is operatively connected to the reclining mechanism.

7. A method for manufacturing a vehicle seat, the method comprising: The seat back is pivotally connected to the bottom of the seat; as well as The adjustment assembly is operatively coupled to the seat and includes a linear actuator configured to release the recliner mechanism when moved in a first direction and to release the track assembly when moved in a second direction; The linear actuator is configured as a rack and pinion, the pinion being driven by a motor, wherein the rack defines a pinion cavity, a first channel and a second channel, and a first guide and a second guide, the first channel and the first guide being disposed on the side of the pinion cavity opposite to the second channel and the second guide; The reclining arm is disposed within the first channel, and a first pin is operably connected to the reclining arm, the first pin extending into the first guide; The rail assembly arm is disposed within the second channel, and the second pin is operably connected to the rail assembly arm, the second pin extending into the second guide; The rack is configured to move linearly in a first direction such that the first pin contacts the end of the first guide, thereby pulling the tilt arm in the first direction; The rack is also configured to move linearly in a second direction such that the second pin contacts the end of the second guide, thereby pulling the track assembly arm in the second direction.

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