Sector arm and latching assembly

Abstract

The present disclosure provides a "fan arm and latch assembly." A seat assembly includes a seat base operably coupled to a track assembly and a latch assembly configured to couple the seat base to the track assembly. The latch assembly includes a fan arm operably coupled to a first pivot pin and a second pivot pin, wherein the first pivot pin is operably coupled to the seat base, a striker pin operably coupled to the second pivot pin and including a striker, and a dual cam latch operably coupled to the fan arm and disposed between the first pivot pin and the second pivot pin and operable between a lowered position in which the latch assembly is engaged with the striker and a raised position in which the latch assembly is released.

Description

Technical Field

[0001] This disclosure generally relates to a latching assembly. More specifically, this disclosure relates to a latching assembly disposed on a sector arm located between a first pivot axis and a second pivot axis. Background Technology

[0002] Seat assemblies are typically tilted forward within a vehicle, especially in vehicles where the rear seats are only accessible by entering from behind the front seat assemblies. Due to the prevalence of these entrances, increasing entry space is desirable when the seat assemblies are tilted forward. Summary of the Invention

[0003] According to a first aspect of this disclosure, a seat assembly includes: a seat base operably coupled to a track assembly; and a latching assembly configured to engage the seat base to the track assembly. The latching assembly includes: a sector arm operably coupled to a first pivot pin and a second pivot pin, wherein the first pivot pin is operably coupled to the seat base; a striker pin operably coupled to the second pivot pin and including a striker; and a double-cam latch operably coupled to the sector arm and disposed between the first pivot pin and the second pivot pin, and operable between a lowered position in which the latching assembly engages the striker pin and an raised position in which the latching assembly is released.

[0004] Embodiments of the first aspect of this disclosure may include any one or a combination of the following features:

[0005] • The double-cam latch includes a locking hook that defines an opening;

[0006] • A first distance measured from the opening of the locking hook to the second pivot pin is approximately equal to a second distance measured from the second pivot pin to the firing pin; and / or

[0007] The sector arm includes a first arm operably connected to a second arm, wherein a first pivot pin is operably connected to the first arm and a second pivot pin is operably connected to the second arm.

[0008] According to a second aspect of this disclosure, a seat assembly includes: a seat base operably coupled to a track assembly; a sector arm operably coupled to a first pivot pin and a second pivot pin, wherein the first pivot pin is operably coupled to the seat base; a striker disposed on the track assembly and operably coupled to the second pivot pin; and a double cam latch disposed between the first pivot pin and the second pivot pin and configured to engage the striker pin when in a lowered position.

[0009] Embodiments of the second aspect of this disclosure may include any one or a combination of the following features:

[0010] • The double-cam latch includes a locking hook that defines an opening;

[0011] • The impact plate includes an impact pin, which is configured to be received by the opening of the locking hook;

[0012] • The double cam latch is operably connected to the middle of the sector arm via a spindle pin, such that the hole is a first distance away from the second pivot pin;

[0013] The firing pin is positioned at a second distance from the second pivot pin, wherein the second distance is approximately equal to the first distance;

[0014] The sector arm includes a first end and a second end, and further, wherein the first end is operably coupled to the first pivot pin, and the second end is operably coupled to the second pivot pin; and / or

[0015] The first end is positioned at a predetermined angle relative to the opening of the double cam latch, and further, wherein the angle positions the seat base substantially parallel to the track assembly.

[0016] According to a third aspect of this disclosure, a seat assembly includes: a seat base operably coupled to a track assembly; and a latching assembly. The latching assembly includes: a bumper operably coupled to the track assembly; a sector arm operably coupled to the seat base and the bumper; and a double-cam latch operably coupled to the sector arm and disposed between a first end and a second end of the sector arm.

[0017] Embodiments of the third aspect of this disclosure may include any one or a combination of the following features:

[0018] The impact plate includes an impact pin;

[0019] • The double-cam latch includes a locking hook that defines an opening configured to receive the firing pin;

[0020] The sector arm includes a first end defining a first pivot axis and a second end defining a second pivot axis;

[0021] • The second end extends a first distance from the second pivot axis, and further, the firing pin is disposed at a second distance from the second pivot axis;

[0022] • The first distance is approximately equal to the second distance;

[0023] • The first end is set at a certain angle, and further, wherein the angle is configured to position the seat base parallel to the track assembly when the locking hook engages with the striker;

[0024] • The double cam latch is secured to the sector arm and the cover by a mandrel pin; and / or

[0025] • The sector arm is a single continuous element configured to support certain portions of the seat base.

[0026] Upon studying the following specification, claims and drawings, those skilled in the art will understand and appreciate these and other aspects, objectives and features of this disclosure. Attached Figure Description

[0027] In the attached diagram:

[0028] Figure 1 is a top perspective view of an embodiment of a vehicle seat assembly;

[0029] Figure 2 is an enlarged top perspective view of the vehicle seat assembly in Figure 1;

[0030] Figure 3A This is a top perspective view of the frame of one embodiment of a vehicle seat assembly, with the bidirectional tilt mechanism in the designed position;

[0031] Figure 3B yes Figure 3A A side view of the frame, wherein the bidirectional tilting mechanism is in the design position;

[0032] Figure 4 yes Figure 3B A magnified view of region IV;

[0033] Figure 5 This is an enlarged side view of the base of the vehicle seat assembly frame, showing the latch of the vehicle seat assembly in its designed position;

[0034] Figure 6 This is a side view of the frame of the seat assembly, with the bidirectional tilt mechanism in the design position, and the tilt position is shown in dashed lines;

[0035] Figure 7A This is the top perspective view of the frame, with the bidirectional tilt mechanism in a tilted position;

[0036] Figure 7B yes Figure 7A A side view of the frame, in which the bidirectional tilting mechanism is in a tilted position;

[0037] Figure 8 It includes those in the middle position. Figure 5 Enlarged internal perspective view of the base of the latch;

[0038] Figure 9 This includes those in tilted positions. Figure 5 Enlarged internal perspective view of the base of the latch;

[0039] Figure 10A This is a side view of the latch assembly used in the bidirectional tilting mechanism or the four-directional tilting mechanism of this disclosure;

[0040] Figure 10B yes Figure 10A Exploded top perspective view of the latch assembly;

[0041] Figure 11A It is in the first position. Figure 10A Side view of the double cam mechanism of the latch assembly;

[0042] Figure 11B It is in the second position. Figure 11A Side view of the double cam mechanism;

[0043] Figure 11C It is in the third position. Figure 11A Side view of the double cam mechanism;

[0044] Figure 11D It is in the fourth position. Figure 11A Side view of the double cam mechanism;

[0045] Figure 12A This is a top perspective view of the frame of the vehicle seat assembly, with the four-way tilt mechanism in its designed position.

[0046] Figure 12B yes Figure 12A The first side view of the frame, in which the four-way tilting mechanism is in the design position;

[0047] Figure 12C yes Figure 12A The second side view of the frame, in which the four-way tilting mechanism is in the design position;

[0048] Figure 13 This is a side view of the frame, showing the four-way tilt mechanism moved to the tilt position;

[0049] Figure 14A This is a top perspective view of the frame of the vehicle seat assembly, with the four-way tilt mechanism in a tilted position and sliding forward;

[0050] Figure 14B This is a side view of the frame, where Figure 14A The four-way tilting mechanism is in an inclined position and slides forward;

[0051] Figure 15This is a rear bottom perspective view of the frame of a vehicle seat assembly with a four-way tilt mechanism;

[0052] Figure 16A This is a side view of the base frame of the vehicle seat assembly, with the latch assembly in the designed position;

[0053] Figure 16B It is a vehicle seat component Figure 16A A side view of the base frame, in which the latch assembly is in an inclined position;

[0054] Figure 17A This is an inside front view of the base frame and towel bar of the vehicle seat assembly in the design position;

[0055] Figure 17B yes Figure 17A The inside front view of the base frame and towel bar in an inclined position;

[0056] Figure 18A This is an outer front view of the base frame of the vehicle seat assembly, with the gear in a lowered position; and

[0057] Figure 18B yes Figure 18A The base frame and the gear are shown in an external front view, with the gear in the raised position. Detailed Implementation

[0058] For descriptive purposes, the terms “upper,” “lower,” “right,” “left,” “rear,” “front,” “vertical,” “horizontal,” and their derivatives herein are to be associated with these concepts as oriented as in Figure 2. However, these concepts may take on various alternative orientations unless explicitly stated otherwise. It should also be understood that the specific devices and processes shown in the accompanying drawings and described in the following specification are merely exemplary embodiments of the inventive concepts defined in the appended claims. Therefore, unless explicitly stated otherwise in the claims, the specific dimensions and other physical characteristics associated with the embodiments disclosed herein should not be considered limiting.

[0059] In this document, relational terms such as first and second, top and bottom 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 these entities or actions. The terms “comprising,” “including,” or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article of manufacture, or apparatus that includes a list of elements may include not only those elements but also elements not expressly listed or other elements inherent to such a process, method, article of manufacture, or apparatus. Without further constraints, an element preceded by “comprising…one” does not exclude the presence of additional identical elements in the process, method, article of manufacture, or apparatus that includes that element.

[0060] Refer to the overall figures in Figure 1 to Figure 18B In the embodiment shown, reference numeral 10 generally denotes a seat assembly including: a striker 12 operably coupled to a track assembly 14; and a sector arm 16 operably coupled to a seat base 18 and defining a first pivot axis α and a second pivot axis β. The seat assembly 10 also includes a double-cam latch 24 disposed between the second pivot axis β and the seat base 18 when the sector arm 16 is in a raised position, and engageable with the striker 12 when the sector arm 16 is in a lowered position, wherein the double-cam latch 24 is releaseable by forward movement of the seat back 26; a release cam 28 operably coupled to the sector arm 16 along the second pivot axis β, wherein the release cam 28 is configured to rotate downward when the sector arm 16 is in the raised position; and a release lever 30 including a front portion 32 and a rear portion 34, wherein the rear portion 34 is engageable by the release cam 28.

[0061] Referring now to FIG. 1, a seat assembly 10 is shown disposed within the front portion 40 of a vehicle 44. The seat assembly 10 includes a seat base 18 and a seat back 26, and may include a headrest 48. A track assembly 14 is operatively coupled to the floor 50 of the vehicle 44, and the seat base 18 is operatively coupled to the track assembly 14. The track assembly 14 may include a plurality of tracks 52, each defining a passage 54. The seat assembly 10 is configured to tilt forward to allow access to the rear portion 56 of the vehicle 44. It is contemplated that the vehicle 44 may be any type of vehicle, such as a car, truck, van, etc. It is also contemplated that the concepts set forth in this disclosure may be used in both the front portion 40 and the rear portion 56 of the vehicle 44, depending on the configuration of the vehicle 44.

[0062] Referring now to Figures 1 and 2, the seat base 18 of the seat assembly 10 is operatively coupled to the seat back 26. The seat base 18 may be located on a plurality of guide rail sliders 60 of the track assembly 14. Each of the plurality of guide rail sliders 60 may be received by a channel 54 defined by one of a plurality of tracks 52 of the track assembly 14. The plurality of guide rail sliders 60 may be releasably secured to the track assembly 14. Optionally, the plurality of guide rail sliders 60 may be slidably coupled to the track assembly 14 to allow the seat assembly 10 to move forward and backward relative to the vehicle 44. An actuator 64 may be disposed on the seat base 18. The actuator 64 is configured to tilt the seat assembly 10 forward upon actuation, thereby raising the rear of the seat base 18. Although the actuator 64 is shown disposed on the seat base 18 in the illustrated embodiment, it is contemplated that, depending on the configuration of the seat assembly 10, the actuator 64 may be disposed on the seat back 26 or in any location near the seat assembly 10 without departing from the scope of this disclosure.

[0063] Now for reference Figure 3A The seat assembly 10 is shown to include a bidirectional tilting mechanism 70. The seat assembly 10 includes a base frame 74 and a backrest frame 78. The backrest frame 78 includes a first vertical support 82 and a second vertical support 84 connected together via a top 88 and a bottom 92. The first vertical support 82 and the second vertical support 84 may each include a curved front portion 94 and may be integrally formed with the top 88 and the bottom 92. Optionally, the first vertical support 82 and the second vertical support 84 may be operably coupled to the top 88 and the bottom 92 using fasteners or connectors, adhesives, welding, etc. The base frame 74 includes a first horizontal support 96 and a second horizontal support 98, which are operably coupled to the first vertical support 82 and the second vertical support 84, respectively. The first horizontal support 96 and the second horizontal support 98 may be connected via a front portion 102 and a rear portion 104. In the illustrated embodiment, the rear portion 104 includes a torsion bar 100, and the front portion 102 includes a seat cushion 106, which includes a lip 108 configured to be fixed to the top edge 110 of the first horizontal support 96 and the second horizontal support 98.

[0064] Still referencing Figure 3AA first cable guide 120 is operatively coupled to a first horizontal support 96. An actuator 124 is operatively coupled to the top 88 of the backrest frame 78 and includes a second cable guide 126. A first cable 122 is received by the first cable guide 120 and extends upward to the backrest frame 78 of the seat assembly 10 to be received by the second cable guide 126. The first cable 122 also extends below the rear portion 104 of the base frame 74 to engage with a standard splitter 150. The standard splitter 150 operatively connects the first cable 122 to a first latch cable 130 and a second latch cable 132. The first latch cable 130 is operatively coupled to a latch assembly 168, which is operatively coupled to the first horizontal support 96, and the second latch cable 132 is operatively coupled to the latch assembly 168, which is operatively coupled to the second horizontal support 98. The first cable 122 is enclosed by a first cable sleeve 142, and the first latching cable 130 and the second latching cable 132 are enclosed by a second cable sleeve 144 and a third cable sleeve 146, respectively. It should be understood that the first cable 122 can be a single cable, multiple separate cables, or multiple intertwined cables. It should also be understood that the first latching cable 130 and the second latching cable 132 can be integrally formed with the first cable 122, or the first latching cable 130 and the second latching cable 132 can be a single cable. The first cable 122 and the first latching cable 130 and the second latching cable 132 can be connected in any manner understood in the art. Furthermore, it is contemplated that the first cable 122 and the first latching cable 130 and the second latching cable 132 can be exposed on the underside of the base frame 74 without the cable sleeves 142, 144, 146, without departing from the scope of this disclosure.

[0065] Now for reference Figure 3B The diagram shows a second horizontal support 98 and a second vertical support 84. It should be understood that the first horizontal support 96 and the first vertical support 82, although not shown, have a similar configuration. Figure 3A As shown, the second horizontal support 98 is fixedly connected to the second vertical support 84 via a longitudinal transverse connector 176, which terminates at the center of the first tilter 175 and the center of the second tilter 177.

[0066] Still referencing Figure 3BThe diagram illustrates a track assembly 14, in which one of a plurality of guide rail sliders 60 is disposed in a channel 54 defined by one of a plurality of tracks 52. In the illustrated embodiment, a second horizontal support 98 is operatively coupled to the guide rail slider 60 via a hinge 180 and a latch assembly 168. It should be understood that the arrangement of the latch assembly 168 and the hinge 180 is merely exemplary, and the latch assembly 168 and the hinge 180 may be arranged in alternative configurations without departing from the scope of this disclosure. Each hinge 180 includes a hinge base 184 fixedly coupled to the guide rail slider 60. The hinge 180 also includes a hinge arm 188 pivotally coupled to the second horizontal support 98 and further pivotally coupled to the hinge base 184.

[0067] Now for reference Figure 4 and Figure 5 Each latch assembly 168 includes a striker 192 fixed to a guide rail slider 60. The striker 192 includes an elongated member 198 having a first end 194 and a second end 196. The first end 194 is operably coupled to the sector arm 16 via a pivot pin 200. Figure 5 As shown, the sector arm 16 can also be operatively connected to a torsion bar 100, which serves as the rear portion 104 of the base frame 74. The sector arm 16 defines a first pivot axis α and a second pivot axis β. The first pivot axis α is aligned with the center of the torsion bar 100, while the second pivot axis β is aligned with a pivot pin 200, which is operatively connected to a first end 194 of the impact plate 192.

[0068] Still referencing Figure 4 and Figure 5 The impact plate 192 includes a base 210, a first plate side 214, and a second plate side 216. The base 210 is integrally formed with and connects the first plate side 214 and the second plate side 216. Figure 4 As shown, the first plate side 214 includes a first upturned flange 234. The first upturned flange 234 defines a first striker hole 236 configured to receive a striker 12. It should be understood that the configuration of the striker 12 and the plate pivot hole 220 is merely exemplary, and the positions of the plate pivot hole 220 and the striker 12 can be adjusted without departing from the scope of this disclosure.

[0069] The second plate side 216 may be non-linear and extend the length of the longitudinal member 198 of the impact plate 192. At the first end 194, the second plate side 216 defines a plate pivot hole 220 configured to receive a pivot pin 200. The pivot pin 200 operatively connects the first end 194 to the sector arm 16. At the second end 196, the second plate side 216 may include a second upturned flange 240. The second upturned flange 240 defines a second striker hole 244. A first striker hole 236 receives a first end 248 of the striker 12, while the second striker hole 244 receives a second end 252 of the striker 12. The first plate side 214 and the second plate side 216 are spaced apart by a predetermined distance to allow the impact plate 192 to receive a double-cam latch 24 disposed on the sector arm 16, the double-cam latch including a latch housing 256. The double cam latch 24 is releasably connected to the firing pin 12 between the first end 248 and the second end 252.

[0070] Still referencing Figure 5 The sector arm 16 defines a first pivot hole 258 and a second pivot hole 218. The first pivot hole is configured to receive a torsion bar 100 of the rear portion 104 of the base frame 74, and the second pivot hole is configured to align with and receive a pivot pin 200. As discussed elsewhere herein, the first end 194 of the impact plate 192 and the sector arm 16 are operatively connected by a pivot pin 200 extending through the plate pivot hole 220 and the second pivot hole 218 of the sector arm 16. The pivot pin 200 can be secured by a washer 262 and a nut 264. However, other methods of connecting the impact plate 192 and the sector arm 16 are contemplated and may also be implemented.

[0071] Now for reference Figure 6 Each hinge 180 and each latch assembly 168 is configured to pivot from a design position D to an inclined position P. In the illustrated embodiment, each sector arm 16 of the latch assembly 168 is a single longitudinal member 298. However, it is contemplated that each sector arm 16 may be a single plate or multiple plates forming the sector arm 16. As discussed elsewhere herein, in the illustrated embodiment, the sector arm 16 is operatively coupled to the rear portion 104 of the base frame 74. However, it is contemplated that the sector arm 16 may be operatively coupled to any portion of the base frame 74 of the seat assembly 10. The sector arm 16 is also operatively coupled to the bumper 192. Figures 4 to 6 As shown, when the seat assembly 10 is in the design position D, the double-cam latch 24 of the latch assembly 168 engages with the striker 12, and the sector arm 16 of the latch assembly 168 is substantially flush with the striker 192. Figure 6As shown, when the seat assembly 10 is in the tilted position P, the fan-shaped arm 16 extends upward to support the rear portion 104 of the base frame 74. The base frame 74 tilts forward, thus forming an acute angle X between the base frame 74 and the track assembly 14. By tilting the base frame 74 forward and supporting it at a certain angle, the bidirectional tilting mechanism 70 forms an entrance cone C, which provides sufficient space for the user to access the rear of the seat assembly 10.

[0072] Now for reference Figure 7A A first cable 122 is operatively coupled to an actuator 124, as described elsewhere herein. When actuated, the actuator 124 applies tension to the first cable 122. The first cable 122 then transmits the tension from the actuator 124 to a first latch cable 130 and a second latch cable 132 via a standard splitter 150. When tension is transmitted to the first latch cable 130 and the second latch cable 132, each latch assembly 168 is released, thereby allowing each sector arm 16 to extend upward to the raised position.

[0073] Now for reference Figures 7A to 9 When the sector arm 16 is in the raised position, as described elsewhere herein, the sector arm 16 extends substantially vertically. The sector arm 16 raises the rear 104 of the base frame 74, thereby tilting the base frame 74 forward. Figure 7B As shown, when each latch assembly 168 is released and rotated to the tilt position P, the hinge arm 188 of the hinge 180 rotates forward together with the front portion 102 of the base frame 74. When the seat assembly 10 is in the tilt position P, the hinge arm 188 supports the front portion 102 of the base frame 74.

[0074] Now for reference Figure 8 and Figure 9 The latch assembly 168 includes a sector arm 16 and a double-cam latch 24. The sector arm 16 includes a longitudinal member 298 and is available in a lowered position ( Figure 6 ) and rising position ( Figure 9 Rotation between ) . Component 298 includes a first end 300 and a second end 304. The first end 300 defines a first pivot hole 258. A first pivot axis α is defined by and aligned by the first end 300 to extend through the center of the first pivot hole 258. In the illustrated embodiment, the first pivot hole 258 is configured to receive a torsion bar 100, as described elsewhere herein. The sector arm 16 can be secured to the torsion bar 100 by a washer 308 and can be configured such that the first surface 312 of the sector arm 16 is substantially flush with the inner surface 316 of the second horizontal support 98. Figure 8 and Figure 9The second end 304 of the sector arm 16 defines a second pivot hole 218 configured to receive a pivot pin 200. In the illustrated embodiment, the pivot pin 200 operatively connects the sector arm 16 to the strike plate 192. The second end 304 of the sector arm 16 also defines a second pivot axis β extending through the center of the second pivot hole 218 and aligned with the pivot pin 200. Figure 6 , Figure 8 and Figure 9 As shown, when the seat assembly 10 is raised by the sector arm 16, the first pivot axis α allows the sector arm 16 to rotate about the torsion bar 100 of the base frame 74. When the latch assembly 168 is actuated, the second pivot axis β allows the sector arm 16 to rotate between the raised and lowered positions.

[0075] Still referencing Figure 8 and Figure 9 The longitudinal member 298 of the fan-shaped arm 16 forms an obtuse angle Y ( Figure 9 and Figure 10A A double-cam latch 24 is positioned near the center of the sector arm 16, forming an angle Y. A second pivot hole 218 is defined by a second end 304 of member 298 such that a second pivot axis β is a first distance from an opening 334 defined by a latch hook 338 of the double-cam latch 24. The first distance is equal to a second distance, and the second distance is measured from the second pivot axis β to the striker 12. When the sector arm 16 is in the lowered position, the striker 12 is received by the opening 334, which is defined by a latch hook 338 of latch assembly 168. The obtuse angle Y of the sector arm 16 allows the base frame 74 and a portion of the sector arm 16 to be substantially parallel to the track assembly 14 when the sector arm 16 is in the lowered position. The elongated member 298 of the sector arm 16 may include an offset portion 342 near the second end 304. The offset portion 342 is configured to allow the sector arm 16 to engage with the striker 192, as discussed elsewhere herein. The offset portion 342 is configured to receive the first plate side 214 at the first end 194 of the impact plate 192. The offset portion 342 is non-linear to allow the first plate side 214 to be received by the offset portion 342 throughout the entire range of motion of the sector arm 16 as the sector arm 16 rotates about the second pivot axis β.

[0076] Still referencing Figure 8 and Figure 9A latch cable guide 330 is disposed near the latch housing 256. The latch cable guide 330 is configured to receive one of a first latch cable 130 and a second latch cable 132. The second latch cable 132 extends through the latch cable guide 330 to be operatively coupled to the double-cam latch 24 of the latch assembly 168, as discussed elsewhere herein. A third cable sleeve 146 may enclose the second latch cable 132. It should be understood that the configuration shown is only one side of the seat assembly 10, and the configuration of the other side (although not shown) is similar to the shown side.

[0077] Now for reference Figure 10A and Figure 10B The member 298 of the sector arm 16 defines an elongated opening 360 near its top, such that the elongated opening 360 can be configured to guide movement of the double cam latch 24. The elongated opening 360 may be arched with a rounded end 368. The elongated opening 360 is also near the latch guide 330. The member 298 also defines a first connecting opening 382, ​​a second connecting opening 384, and a third connecting opening 386, which are configured to receive a first connecting pin 390, a second connecting pin 392, and a third connecting pin 394, respectively, for connecting other components of the double cam latch 24 to the sector arm 16. The first connecting opening 382 is defined between the elongated opening 360 and the first pivot hole 258. Figure 10A As shown, the first connecting pin 390 is received by the first connecting opening 382 and extends outwards a predetermined distance. The second connecting opening 384 is defined by a fan-shaped arm 16 adjacent to the first connecting opening 382 and is configured to receive the second connecting pin 392. The second connecting pin 392 has a similar configuration to the first connecting pin 390. It should be understood that the configurations of the first connecting opening 382 and the second connecting opening 384 are merely exemplary and can be adjusted without departing from the scope of this disclosure.

[0078] Refer again Figure 10A and Figure 10B The third connection opening 386 is defined by a downwardly extending flange 416 of the fan-shaped arm 16. The third connection opening 386 is configured to receive a third connection pin 394. The third connection pin 394 has a spindle and pivot design. The third connection pin 394 includes a body portion 420 having a pair of protrusions 424 extending from one end of the body portion 420. The pair of protrusions 424 are arranged such that the protrusions 424 are parallel to each other and form a generally cylindrical arm 432. The diameter of the arm 432 is smaller than that of the body portion 420 and the arm is configured to receive various holes defined by other components of the double cam latch 24. The protrusions 424 define a slot 436 that extends a predetermined distance through the center of the arm 432 and is configured to receive a tension spring 440. The slot 436 serves as the spindle of the spindle-designed pin or the spindle of the third connection pin 394.

[0079] Still referencing Figure 10A and Figure 10B The double cam latch 24 includes a latch 338 operably coupled to a structural cam 450 and an adjusting cam 452. Now refer to Figure 10B The structural cam 450 includes a flange 470. The flange 470 extends upward from the structural cam 450 and is configured to receive a second latch cable 132 (not shown) from the latch cable guide 330. The structural cam 450 also includes a first face 454 and a continuous edge 458. The edge 458 defines a shelf 462. The shelf 462 and a laterally extending curved protrusion 478 from the side of the flange 470 define a space 466. This space is configured to receive a locking hook 338. The flange 470 defines an L-shaped opening 486, which is also defined by the curved protrusion 478. The structural cam 450 also defines a hole 490 to receive a third connecting pin 394. A tab 494 is disposed near the hole 490 and extends perpendicular to the first face 454 of the structural cam 450. In the illustrated embodiment, the tab 494 is generally semi-cylindrical. However, it is contemplated that tabs of any shape can be used without departing from the scope of this disclosure.

[0080] Refer again Figure 10A and Figure 10B The adjusting cam 452 is set to be substantially flush with the first surface 454 of the structural cam 450. (See again...) Figure 10A The adjusting cam 452 includes a first end 500 and a second end 504. The first end 500 includes a top edge 508 configured to be generally aligned with and extend upward beyond a shelf 462 of the structural cam 450. The second end 504 of the adjusting cam 452 is non-linear and defines a hole 512 configured to be aligned with a hole 490 of the structural cam 450. The hole 512 is configured to receive a third connecting pin 394 to secure the adjusting cam 452 to the structural cam 450 and the sector arm 16. A foot 516 extends laterally from an edge 520 of the adjusting cam 452. The foot 516 is angled to provide a top surface 522 perpendicular to the adjusting cam 452 and aligned with the edge 520. The adjusting cam 452 also defines a notch 524 configured to receive a tab 494 of the structural cam 450. The notch 524 is configured to partially receive the tab 494 when the structural cam 450 is in the intermediate position. The notch 524 is also configured to fully receive the tab 494 when the structural cam 450 is engaged with the adjusting cam 452. It should be understood that the notch 524 can have any shape or configuration designed to fully receive the tab 494 when the structural cam 450 is engaged with the adjusting cam 452.

[0081] Refer again Figure 10A and Figure 10BThe cover plate reinforcement 530 can separate the structural cam 450 from the adjusting cam 452. A first plate hole 534 is defined by a first end 542 of the cover plate reinforcement 530 and configured to receive a second connecting pin 392. The body portion 546 of the cover plate reinforcement 530 may be curved and connects the first end 542 to a second end 550. A second plate hole 538 is defined by the second end 550 and configured to align with the hole 490 of the structural cam 450 and the hole 512 of the adjusting cam 452. The second plate hole 538 receives a third connecting pin 394 such that the third connecting pin 394 extends through the second plate hole 538 to allow further coupling to the tension spring 440. In some embodiments, it is contemplated that the double cam latch 24 may be configured to exclude the cover plate reinforcement 530 without departing from the scope of this disclosure.

[0082] Refer again Figure 10A and Figure 10B The tension spring 440 is generally circular and operably connected to the structural cam 450 and the adjusting cam 452 via a third connecting pin 394. A first extension 560 extends tangentially to the tension spring 440. When the tension spring 440 is in place within the double-cam latch 24 of the latch assembly 168, as... Figure 10A As shown, the first extension 560 is substantially flush with the top surface 522 of the foot 516 of the adjusting cam 452. The second extension 564 divides the opening 568 defined by the tension spring 440 in two. The second extension 564 is received by the slot 436 of the third connecting pin 394 until the second extension 564 is secured within the slot 436. When the tension spring 440 engages with the slot 436 of the third connecting pin 394 and the foot 516 of the adjusting cam 452, the tension spring 440 biases the adjusting cam 452 into a blocked position.

[0083] Still referencing Figure 10A and Figure 10B The locking hook 338 is operably connected to the sector arm 16 via the second connecting pin 392. For example... Figure 10AAs shown, the locking hook 338 includes a first flange 580, a body portion 584, and a second flange 588. The body portion 584 is generally circular and defines an aperture 592 configured to receive a second connecting pin 392. The first flange 580 extends tangentially to the body portion 584 and includes a side edge 596. The first flange 580 also includes a first surface 608 defining the top of an opening 334. The second flange 588 curves outward and away from the body portion 584 to define the bottom of the opening 334, which is configured to receive a striking pin 12. The second flange 588 includes a second surface 604 defining the opening 334 and also includes an end portion 606. When the striking pin 12 is received by the opening 334, the striking pin 12 is located between the second surface 604 and the first surface 608. A protrusion 612 also extends from the body portion 584 to define an attachment hole 616. The attachment hole 616 is configured to receive a first end hook 620 of a return spring 624. The return spring 624 is a tension spring configured to operably engage the locking hook 338 with the structural cam 450. The return spring 624 includes a second end hook 628 configured to be received by an L-shaped opening 486 of the structural cam 450. The return spring 624 allows force to be transferred from the structural cam 450 to the locking hook 338, such that a predetermined force can release the locking hook 338.

[0084] Still referencing Figure 10A The double-cam latch 24 can be enclosed in a latch housing 256. In the illustrated embodiment, the latch housing 256 includes a first portion 644 and a second portion 646. The latch housing 256 also includes an outer surface 648 and a housing edge 652 integrally formed with the outer surface 648. The first portion 644 defines a first housing aperture 656 and a second housing aperture 660, which are configured to receive a first connecting pin 390 and a second connecting pin 392 to secure the latch housing 256 to the double-cam latch 24, respectively. The first portion 644 is configured to enclose a latch hook 338 and may be non-linear to allow the latch hook 338 to rotate between a locked position and an unlocked position without abutting the housing edge 652. The first portion 644 may also include an arm 664 extending perpendicular to the outer surface 648 of the latch housing 256 and parallel to the housing edge 652. The arm 664 may be configured to guide the latch hook 338 as it rotates between the locked and unlocked positions. The second portion 646 defines a third housing bore 668 configured to receive a third connecting pin 394. The second portion 646 is also configured to be secured above the structural cam 450, the adjusting cam 452, and the tensioning spring 440. It should be understood that the latch housing 256 of the illustrated embodiment is merely exemplary, and it is contemplated that housings of different shapes may be used, or no housing may be used at all.

[0085] Now for reference Figures 11A to 11DThe latch assembly 168 is shown having a first connecting pin 390 and a second connecting pin 392, a locking hook 338, a structural cam 450, an adjusting cam 452, and a return spring 624. As shown in the illustrated embodiment, the locking hook 338 can be in a locked position ( Figures 11A to 11C ) and unlock location ( Figure 11D The structural cam 450 and adjusting cam 452 can rotate between a blocked position and a removed position. The blocked position of the structural cam 450 and adjusting cam 452 corresponds to the locked position of the locking hook 338. Similarly, the removed position of the structural cam 450 and adjusting cam 452 corresponds to the unlocked position of the locking hook 338.

[0086] Now for reference Figure 11A The locking hook 338 is shown in the locked position. In the illustrated embodiment, the side edge 596 of the first flange 580 of the locking hook 338 is substantially flush with the top edge 508 of the adjusting cam 452. The tab 494 of the adjusting cam 452 is not fully engaged with the notch 524 of the structural cam 450, and the return spring 624 is in an intermediate position. When the locking hook 338 is in the locked position, the second flange 588 is positioned to prevent removal of the firing pin 12 from the opening 334. To secure the firing pin 12, the end 606 of the locking hook 338 is aligned with the downwardly extending flange 416 of the fan-shaped arm 16. The top edge 508 of the adjusting cam 452, adjacent to the side edge 596 of the first flange 580 of the locking hook 338, prevents the locking hook 338 from rotating out of the locked position. The locking hook 338 will remain in the locked position until subjected to a force that will also rotate the adjusting cam 452 and the structural cam 450 out of the obstructed position.

[0087] Now for reference Figure 11B When the latch assembly 168 is actuated by the first latch cable 130 or the second latch cable 132, a force F1 is applied to the structural cam 450 via the first latch cable 130 or the second latch cable 132. Force F1 applies tension to the return spring 624, causing force F2 to be applied to the latch hook 338 via the return spring 624. The side edge 596 of the first flange 580 of the latch hook 338 remains in contact with the adjusting cam 452. When force F1 is applied to the structural cam 450, the structural cam 450 rotates about the third connecting pin 394 until the tab 494 is fully engaged with the notch 524 of the adjusting cam 452. When the tab 494 is fully engaged with the notch 524, a torque M1 is applied to the adjusting cam 452 and the tension spring 440 (not shown). When the tab 494 remains fully engaged with the notch 524 and the foot 516 of the adjusting cam 452 begins to move clockwise, the torque M1 is applied clockwise approximately around the third connecting pin 394.

[0088] Now for reference Figure 11C and Figure 11DThe first latching cable 130 or the second latching cable 132 continues to apply force F1 to the structural cam 450. The structural cam 450 continues to move in a generally rearward direction, thereby applying torque M1 to the adjusting cam 452. As the adjusting cam 452 rotates, its top edge 508 gradually moves and disengages from the side edge 596 of the locking hook 338. When the top edge 508 of the adjusting cam 452 is removed and disengaged from the side edge 596, the locking hook 338 rotates freely about the second connecting pin 392. The structural cam 450 continues to apply tension to the return spring 624, thereby continuing to apply force F2 to the locking hook 338. As the force F2 on the locking hook 338 increases, torque M2 is applied approximately clockwise about the second connecting pin 392, thereby causing the locking hook 338 to rotate to... Figure 11D The unlocked position is shown in the diagram. The hook 338 will remain in the unlocked position until it receives the firing pin 12. When the firing pin 12 is received by the opening 334 defined by the hook 338, the firing pin 12 pushes the first flange 580 upward as it contacts the side edge 596 of the first flange 580. When the hook 338 reaches the locked position, the tension spring 440 rotates the adjusting cam 452 back to the obstructed position, thereby allowing the side edge 596 to contact the top edge 508 of the adjusting cam 452 and securing the hook back to the locked position.

[0089] Now for reference Figures 11A to 11D The structural cam 450 and the adjusting cam 452 are configured to allow the locking hook 338 to contact only the adjusting cam 452. The structural cam 450 includes a shelf 462 disposed below the top edge 508 of the adjusting cam 452. In the event of a collision, the adjusting cam 452 may be crushed or deformed due to pressure from the side edge 596 of the locking hook 338. If the adjusting cam 452 fails, the shelf 462 of the structural cam 450 is configured to support the side edge 596 of the locking hook 338, thereby holding the locking hook 338 in the locked position.

[0090] Now for reference Figure 12A Seat assembly 10 is shown having a four-way tilt mechanism 700. Seat assembly 10 is similar to Figure 3A and Figure 3B Seat assembly 10 is described in [reference numeral]. Where the parts are substantially the same, the same reference numerals are used. As previously [reference numeral]... Figure 3AAs described herein, the seat assembly 10 includes a base frame 74 and a backrest frame 78. The base frame 74 includes a first horizontal support 96 and a second horizontal support 98 operably coupled via a front portion 102 and a rear portion 104. The backrest frame 78 includes a first vertical support 82 and a second vertical support 84 operably coupled via a top portion 88 and a bottom portion 92. The base frame 74 and the backrest frame 78 are operably coupled via a transverse connector 176 extending from a tilter center portion 175 to a second tilter center portion 177. It should be understood that the overall configuration of the base frame 74 and the backrest frame 78 is similar to that elsewhere in this document, and more specifically in [the description of the seat assembly 10]. Figure 3A The base frame 74 and backrest frame 78 are described in the text.

[0091] Still referencing Figure 12A The first vertical support 82 and the second vertical support 84 are operably coupled to the first horizontal support 96 and the second horizontal support 98 via a pivot 704. The pivot 704 can be configured to receive a first tilter center portion 175 and a second tilter center portion 177, as well as a lateral connector 176 connecting the first tilter center portion 175 and the second tilter center portion 177. The first tilter center portion 175 and the second tilter center portion 177, along with the lateral connector 176, allow the first vertical support 82 and the second vertical support 84 of the backrest frame 78 to tilt forward simultaneously when actuated. In the illustrated embodiment, an actuator 712 is operably coupled to one of the pivots 704 of the second horizontal support 98. It is contemplated that the actuator 712 can be disposed on either the first horizontal support 96 or the second horizontal support 98 of the seat assembly 10. Optionally, it should be understood that the actuator 712 can be disposed on the backrest frame 78 or at any other location near the seat assembly 10 without departing from the scope of this disclosure.

[0092] Now for reference Figures 12A to 12C The release lever 30 is operatively coupled to the seat assembly 10. The release lever 30 includes a front portion 32 and a rear portion 34 operatively coupled by a torsion spring 728. The torsion spring 728 serves as a connecting spring between the front portion 32 and the rear portion 34. The front portion 32 extends forward of the seat assembly 10, and the rear portion 34 extends below the base frame 74, parallel to and substantially flush with the track assembly 14. The torsion spring 728 is operatively coupled to the track assembly 14 and may be a standard torsion spring 728 configured to transmit rotational force from the front portion 32 to the rear portion 34.

[0093] Now for reference Figure 12B and Figure 12C The first clock spring 740 is disposed on the impact plate 192 located below the first horizontal support member 96. Figure 12BThe second clock spring 744 is disposed on the impact plate 192 located below the second horizontal support 98. Figure 12C Each of the first clock spring 740 and the second clock spring 744 includes an arm 748 that engages with either the first tab 752 or the second tab 754. Each of the first tab 752 and the second tab 754 is disposed on a corresponding sector arm 16. When the seat assembly 10 is in the design position, the arm 748 of the second clock spring 744 engages with the second tab 754. The second tab 754 abuts against the arm 748 of the second clock spring 744, thereby forcing the second clock spring 744 into a loaded position. When the seat assembly 10 is in the design position D, the arm 748 of the first clock spring 740 extends upward and unloads. When the seat assembly 10 is in the tilt position P, the first clock spring 740 is configured to engage with the first tab 752 and is forced into the loaded position.

[0094] Now for reference Figure 13 The seat assembly 10 is shown in a tilted position P, including a four-way tilting mechanism 700 actuable by an actuator 712. The base frame 74 is operatively coupled to the track assembly 14 via a plurality of guide rail sliders 60 disposed within a plurality of tracks 52. The hinge 180 includes a hinge arm 188 and a hinge base 184 operatively coupled to one of the plurality of guide rail sliders 60, as previously described... Figure 3B As shown in the diagram. The latch assembly 168 includes a striker 192 and a double-cam latch 24, also as previously described. Figure 3B As shown in the diagram. The latch assembly 168 also includes a sector arm 16. The sector arm 16 may be a single longitudinal member 298, such as... Figure 3A and Figure 3B As shown in the diagram. Optionally, the sector arm 16 may include multiple components, such as... Figure 13 As shown in the diagram. When actuated by actuator 712, a torque is applied at pivot 704 around the transverse connector 176 as indicated by arrow M4. Torque M4 is approximately counterclockwise and tilts the backrest frame 78 forward. When the backrest frame 78 tilts forward, latch assembly 168 is unlocked, allowing the sector arm 16 and hinge arm 188 to move into tilt position P. Figure 14A and Figure 14B As shown, when the multiple guide rail sliders 60 are released, the base frame 74 can then move in a generally forward direction. When the seat assembly 10 includes the four-way tilt mechanism 700, the base frame 74 is generally parallel to the rail assembly 14 in the four-way tilt position, while the backrest frame 78 is tilted forward at an angle.

[0095] Now for reference Figure 14A and Figure 14BThe seat assembly 10 is shown in a tilted position, wherein a plurality of rail sliders 60 extend from a channel 54 defined by a plurality of rails 52, thereby moving the seat assembly 10 relative to the rail assembly 14 to a forward position. When the dual-cam latch 24 is unlocked by the actuator 712, the latch assembly 168 then engages with the release lever 30 to allow the seat assembly 10 to slide forward along the rail assembly 14 to the forward position. When the seat assembly 10 is in the forward position, the inlet cone C of the seat assembly 10 is larger than that when the seat assembly 10 is in the tilted position P ( Figure 13 When there is no forward movement or when the seat assembly 10 includes a two-way tilting mechanism 70 ( Figures 6 to 7B The entrance cone at that time.

[0096] Now for reference Figures 12A to 14B A first clock spring 740 and a second clock spring 744 are operably coupled to one of the latch assemblies 168 and one of the bumpers 192. When the second clock spring 744 is released from the loaded position, it provides a first spring force to the tab 754. When the seat assembly 10 moves to the tilt position P, the force applied by the second clock spring 744 helps the user tilt the base frame 74 forward. Optionally, the first clock spring 740 is loaded when the seat assembly 10 is in the tilt position. When the first clock spring 740 is released from the loaded position, it provides a second spring force on the tab 752. The force applied by the first clock spring 740 helps the user return the seat assembly 10 to the design position D by pushing the sector arm 16 and subsequently pushing the base frame 74 backward to lock the seat assembly 10 in the design position D.

[0097] Now for reference Figure 15The backrest frame 78 includes a protrusion 770 on the first vertical support 82. The protrusion 770 defines a connection opening 774 configured to receive an actuating member 778. In this embodiment, the actuating member 778 is shown as a cable; however, it is contemplated that any type of member configured to provide tension to the latch assembly 168 can be used. It is also contemplated that the protrusion 770 can be positioned anywhere on the backrest frame 78 without departing from the scope of this disclosure. The actuating member 778 is positioned such that tension is applied to the actuating member 778 by the backrest frame 78 when it is tilted. The actuating member 778 can be operatively coupled to a first cable 786 enclosed by a first cable sleeve 782. The first cable 786 can be mated with a standard splitter 790. The standard splitter 790 can operatively couple the first cable 786 to a first latch cable 796 and a second latch cable 798. The first latching cable 796 and the second latching cable 798 may be enclosed by the second cable sleeve 792 and the third cable sleeve 794. It should be understood that the first cable 796 may be a single cable, multiple separate cables, or multiple intertwined cables. It should also be understood that the first latching cable 796 and the second latching cable 798 may be integrally formed with the first cable 796, or the first latching cable 796 and the second latching cable 798 may be a single cable. The first cable 786 and the first latching cable 796 and the second latching cable 798 may be connected in any manner understood in the art. Furthermore, it is contemplated that the first cable 786 and the first latching cable 796 and the second latching cable 798 may be exposed on the underside of the base frame 74 without the cable sleeves 782, 792, 794, without departing from the scope of this disclosure.

[0098] Now for reference Figure 16A and Figure 16B The image shows a latch assembly 168 for the four-way tilting mechanism 700. It should be understood that the double-cam latch 24 is similar to... Figures 3A to 11DThe double-cam latch 24 is shown in the bidirectional tilting mechanism 70. The same reference numerals are used where features are similar. The four-way tilting mechanism 700 includes a sector arm 16 comprising a first arm 800 and a second arm 804. The first arm 800 is an elongated member 806 and includes a first end 808 and a second end 812. The first end 808 is generally wider than the second end 812 and defines a first pivot hole 816 where the first end 808 begins to narrow. The first pivot hole 816 is configured to receive a first pivot pin 850 to operatively engage the first arm 800 to the second arm 804. The second end 812 of the first arm 800 defines a second pivot hole 824. The second pivot hole 824 of the first arm 800 aligns with a second pivot hole 218 of the strike plate 192 and is secured by a second pivot pin 828. When moved from the design position D to the tilt position P, the latch assembly 168 rotates about the second pivot pin 828.

[0099] Still referencing Figure 16A and Figure 16B The second arm 804 of the sector arm 16 is generally triangular in shape and includes a non-linear vertex 830. The second arm 804 defines a first pivot hole 834 at the vertex 830, which is configured to be operatively coupled to a torsion bar 100 of the base frame 74. It is contemplated that the first pivot hole 834 can be operatively coupled to any part of the base frame 74 without departing from the scope of this disclosure. The second arm 804 also includes a non-linear gear edge 838 opposite the vertex 830 and a protrusion 842 extending from one end of the gear edge 838. The protrusion 842 includes a rounded end 858 defining a hole 854. The hole 854 is configured to align with a first pivot hole 816 of the first arm 800 and is secured by a first pivot pin 850. The first pivot pin 850 is configured to allow the first arm 800 to rotate to an inclined position without adjusting the second arm 804. When the latch assembly 168 is released, the first arm 800 of the sector arm 16 rotates to the tilt position P, thereby securing the second arm 804. The second arm 804 can move independently of the first arm 800, as described elsewhere herein.

[0100] Now for reference Figure 17A and Figure 17B Release cam 28 is operably coupled to the first arm 800 of sector arm 16 via a second pivot pin 828. Release cam 28 includes a body portion 884 defining a connection hole 888. A foot 892 extends perpendicular to the body portion 884. Release cam 28 is fixedly coupled to the first arm 800 of sector arm 16 such that when sector arm 16 rotates about the second pivot pin 828, release cam 28 pivots together with the first arm 800. Release lever 30 is positioned below base frame 74 and extends close to release cam 28. Release lever 30 includes a rear portion 34 and a front portion 32. Figure 12A and Figure 14AAs shown, the front portion 32 of the release lever 30 includes a front lever 900 that projects forward from the base frame 74 toward the seat assembly 10. The front lever 900 is integrally formed with a side lever 904, which is configured to extend below the base frame 74. (Refer again) Figure 17A and Figure 17B Each of the side rods 904 includes a spring end 906 positioned at a predetermined angle to the side rod 904. The spring end 906 is configured to engage a torsion spring 728. When the front rod 900 of the front portion 32 is engaged, the spring end 906 subsequently engages the torsion spring 728. When the torsion spring 728 is engaged, the rear portion 34 engages the release spring 916.

[0101] Still referencing Figure 17A and Figure 17B The rear portion 34 includes a first curve 908 integrally formed with the second curve 912. The second curve 912 is the reverse curve of the first curve 908. The second curve 912 is integrally formed with the second spring end 910 and selectively engages with a release spring 916. The release spring 916 is operatively coupled to the track assembly 14. When the second curve 912 is pressed down, the release spring 916 is released to allow the base frame 74 to move back and forth relative to the track assembly 14. The second curve 912 can be pressed down by a release cam 28 or by the user lifting the front portion 32 of the release lever 30.

[0102] Still referencing Figure 17A and Figure 17B When the latch assembly 168 moves to the tilt position, the release cam 28 rotates to the engagement position. Figure 17B When the release cam 28 rotates to the engaged position, it extends generally downward to press down the rear portion 34 of the release lever 30. The release cam 28 engages a first curve 908 of the rear portion 34 of the release lever 30. As the first curve 908 is pressed down, a second curve 912 engages the release spring 916 to allow the base frame 74 to move back and forth relative to the track assembly 14. Other configurations of the release spring 916 are contemplated. Other shape configurations for the release lever 30 are also contemplated without departing from the scope of this disclosure.

[0103] Now for reference Figure 18A and Figure 18B The fan-shaped arm 16 can be positioned at the designed location D ( Figure 18A ) and tilt position P( Figure 18BThe second arm 804 of the sector arm 16, as discussed elsewhere herein, includes a gear edge 838. The gear edge 838 includes a plurality of gear teeth 930. A pinion 934 is disposed adjacent to the gear edge 838. The pinion 934 is generally cylindrical and may include a plurality of gear slots 938 defined by side edges 942 of the pinion 934. The plurality of gear teeth 930 are configured to be received by the plurality of gear slots 938. The plurality of gear teeth 930 and the plurality of gear slots 938 allow the second arm 804 to selectively operate between a design position, a raised position, and multiple positions between the design position and the raised position. Figure 12B , Figure 13 , Figure 14B , Figure 15 , Figure 18A and Figure 18B As shown, pinion 934 is actuated using actuator 960 and cable 964 operably connected to base frame 74. When actuator 960 engages, it ratchet-acts upward on gear edge 838 to allow second arm 804 to raise base frame 74. As second arm 804 rises, hinge arm 188 also rotates gradually to allow base frame 74 to remain substantially parallel to track assembly 14 during its rise. Second arm 804 is operable in any position of first arm 800. By utilizing the raised position, the range of motion can be increased. Figure 14B The entrance cone C shown allows access to the space behind the seat assembly 10. It should be understood that the number of gear teeth 930 shown in this disclosure is merely exemplary and may be increased or decreased without departing from the scope of this disclosure. It is also contemplated that the second arm 804 may have any shape or size without departing from the scope of this disclosure.

[0104] Those skilled in the art will understand that the described concepts and other components are not limited to any particular material. Unless otherwise stated herein, other exemplary embodiments of the concepts disclosed herein may be formed from a variety of materials.

[0105] For the purposes of this disclosure, the term "connection" (in all its forms, link, linked, connected, 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 the two components (electrical or mechanical) and any additional intermediate members, which may form a single unit with or be integral with the two components. Unless otherwise stated, such a connection may be inherently permanent, or inherently removable or detachable.

[0106] Equally important, it should be noted that the construction and arrangement of the elements of this disclosure shown in the exemplary embodiments are merely illustrative. Although only a few embodiments of the invention have been described in detail in this disclosure, those skilled in the art will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter (e.g., variations in the specifications, dimensions, structure, shape, and proportions of various elements; variations in parameter values, mounting arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts, or elements shown as multiple parts may be integrally formed; the operation of the interface may be reversed or otherwise altered; the structure of the system and / or the length or width of components or connectors or other elements may be changed; and the nature or number of adjustment positions provided between elements may be changed. It should be noted that the elements and / or components of the system may be made of any of a variety of materials that provide sufficient strength or durability, and may exhibit any of a variety of colors, textures, and combinations. Accordingly, all such modifications should be included within the scope of the invention. Other substitutions, modifications, alterations, and omissions may be made in the design, operating conditions, and arrangements of the desired and other exemplary embodiments without departing from the spirit of the invention.

[0107] It should be understood that any described process or step within a described process may be combined with other disclosed processes or steps to form a structure within the scope of this disclosure. The exemplary structures and processes disclosed herein are for illustrative purposes and should not be construed as limiting.

[0108] It should also be understood that changes and modifications can be made to the foregoing structures and methods without departing from the concepts of this disclosure, and that these concepts should be covered by the following claims unless those claims expressly indicate otherwise in language.

[0109] According to the present invention, a seat assembly is provided, the seat assembly having: a seat base operably coupled to a track assembly; and a latch assembly configured to engage the seat base to the track assembly and including: a sector arm operably coupled to a first pivot pin and a second pivot pin, wherein the first pivot pin is operably coupled to the seat base; a striker pin operably coupled to the second pivot pin and including a striker; and a double-cam latch operably coupled to the sector arm and disposed between the first pivot pin and the second pivot pin, and operable between a lowered position in which the latch assembly engages the striker pin and an raised position in which the latch assembly is released.

[0110] According to one embodiment, the double-cam latch includes a locking hook that defines an opening.

[0111] According to one embodiment, a first distance measured from the opening of the locking hook to the second pivot pin is approximately equal to a second distance measured from the second pivot pin to the firing pin.

[0112] According to one embodiment, the sector arm includes a first arm operably coupled to a second arm, wherein a first pivot pin is operably coupled to the first arm, and a second pivot pin is operably coupled to the second arm.

[0113] According to the present invention, a seat assembly is provided, the seat assembly comprising: a seat base operably coupled to a track assembly; a sector arm operably coupled to a first pivot pin and a second pivot pin, wherein the first pivot pin is operably coupled to the seat base; a striker disposed on the track assembly and operably coupled to the second pivot pin; and a double cam latch disposed between the first pivot pin and the second pivot pin and configured to engage the striker pin when in a lowered position.

[0114] According to one embodiment, the double-cam latch includes a locking hook that defines an opening.

[0115] According to one embodiment, the impact plate includes an impact pin configured to be received by the opening of the locking hook.

[0116] According to one embodiment, the double cam latch is operably connected to the sector arm via a pivot pin, such that the opening of the latch is a first distance from the second pivot pin.

[0117] According to one embodiment, the firing pin is positioned at a second distance from the second pivot pin, and wherein the second distance is approximately equal to the first distance.

[0118] According to one embodiment, the sector arm includes a first end and a second end, and further, wherein the first end is operably coupled to the first pivot pin, and the second end is operably coupled to the second pivot pin.

[0119] According to one embodiment, the first end is positioned at a predetermined angle relative to the opening of the double cam latch, and further, wherein the angle positions the seat base substantially parallel to the track assembly.

[0120] According to the present invention, a seat assembly is provided, the seat assembly having: a seat base operably coupled to a track assembly; and a latch assembly comprising: a bumper operably coupled to the track assembly; a sector arm operably coupled to the seat base and the bumper; and a double cam latch operably coupled to the sector arm and disposed between a first end and a second end of the sector arm.

[0121] According to one embodiment, the impact plate includes an impact pin.

[0122] According to one embodiment, the double-cam latch includes a locking hook that defines an opening configured to receive the firing pin.

[0123] According to one embodiment, the sector arm includes a first end defining a first pivot axis and a second end defining a second pivot axis.

[0124] According to one embodiment, the second end is disposed at a first distance from the second pivot axis, and further, the firing pin is disposed at a second distance from the second pivot axis.

[0125] According to one embodiment, the first distance is approximately equal to the second distance.

[0126] According to one embodiment, the first end is set at an angle, and further, said angle is configured to position the seat base parallel to the track assembly when the locking hook engages with the striker.

[0127] According to one embodiment, the double cam latch is secured to the sector arm and the cover by a mandrel pin.

[0128] According to one embodiment, the sector arm is a single continuous element configured to support certain portions of the seat base.

Claims

1. A seat assembly comprising: Seat base, which is operably connected to the track assembly; and A latch assembly comprising: A ram, operably coupled to the track assembly and including a striking pin; A sector arm operably coupled to the seat base and the bumper, the sector arm including a longitudinal member having a first end and a second end forming an obtuse angle, the first end defining a first pivot hole configured to receive a torsion bar of the seat base; the second end defining a second pivot hole configured to receive a pivot pin; and A double-cam latch is operably coupled to the sector arm and disposed between the torsion bar and the pivot pin, and the double-cam latch is operable between a lowered position in which the latch assembly engages with the striker and an elevated position in which the latch assembly is released, and the sector arm extends substantially vertically when it is in the elevated position.

2. The seat assembly of claim 1, wherein the dual-cam latch includes a locking hook that defines an opening configured to receive the striker.

3. The seat assembly of claim 2, wherein the first end defines a first pivot axis and the second end defines a second pivot axis.

4. The seat assembly of claim 3, wherein the second end is disposed at a first distance from the second pivot axis, and further, wherein the striker is disposed at a second distance from the second pivot axis.

5. The seat assembly of claim 4, wherein the first distance is substantially equal to the second distance.

6. The seat assembly of claim 3, wherein the first end is set at an angle, wherein the angle is configured to position the seat base parallel to the track assembly when the locking hook engages with the striker.

7. The seat assembly of any one of claims 1 to 6, wherein the double cam latch is secured to the sector arm and the cover by a spindle pin.

8. The seat assembly of any one of claims 1 to 6, wherein the sector arm is a single continuous element configured to support certain portions of the seat base.

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