Patent Publication Number: US-2020290490-A1

Title: Seating assembly cover

Description:
FIELD OF THE DISCLOSURE 
     The present disclosure generally relates to seating assembly covers for a vehicle, and more particularly, to removable covers for a vehicle seating assembly. 
     BACKGROUND OF THE DISCLOSURE 
     Vehicle seating assemblies may include removable covers. Removable seating assembly covers may be used to change the visual appearance of the seating assembly, or provide variations in seat trim functionality. 
     SUMMARY OF THE DISCLOSURE 
     According to a first aspect of the present disclosure, a vehicle seating assembly includes a cushion with a seating surface. An elongated trench extends into the seating surface. A primary fastener part is disposed in the elongated trench, and a secondary fastener part is disposed around a cushion perimeter. A cover includes first and second fastener parts, wherein the primary fastener part and the first fastener part are selectively attachable to form a first disengageable seal. The secondary fastener part and the second fastener part are selectively attachable to form a second disengageable seal. 
     Embodiments of the first aspect of the disclosure can include any one or a combination of the following features:
         a supporting structure disposed behind the cushion;   an attachment assembly extending between the primary fastener part disposed in the elongated trench and the supporting structure;   wherein the attachment assembly includes a hog ring, a first elongated member, and a second elongated member;   wherein the hog ring includes opposing first and second hook portions, wherein the first elongated member is disposed in the first hook portion, and wherein the second elongated member is disposed in the second hook portion;   wherein the primary fastener part is attached to the first elongated member;   wherein the second elongated member is attached to the supporting structure;   wherein the supporting structure includes a seating assembly frame;   wherein the primary and secondary fastener parts comprise primary and secondary zipper parts;   wherein the first and second fastener parts comprise first and second zipper parts;   wherein the first disengageable seal includes a first zipper assembly and wherein the second disengageable seal includes a second zipper assembly; and/or   wherein the seating surface comprises at least one of a seat surface and a seatback surface.       

     According to a second aspect of the present disclosure, a vehicle seating assembly includes a supporting structure. An intermediate member includes a seating surface, a cover, a selectively engageable first zipper assembly, and a selectively engageable second zipper assembly. The first zipper assembly extends between the removable cover and an attachment assembly secured to the supporting structure. The second zipper assembly extends between the removable cover and the seat. 
     Embodiments of the second aspect of the disclosure can include any one or a combination of the following features:
         wherein the intermediate member includes a cushion and wherein first and second trenches are disposed in the cushion behind the respective first and second zipper assemblies;   wherein a primary zipper part of the first zipper assembly is disposed in the first trench;   wherein the first trench includes a first width at the bottom of the first trench and a second width at the top of the first trench;   wherein the second width is greater than the first width; and/or   a third disengageable seal disposed between the cover and the seating surface.       

     According to a third aspect of the present disclosure, a vehicle seating assembly includes a cover with first and second zipper parts. A cushion includes a first elongated trench for receiving an attachment assembly that extends from a vehicle member and is coupled to a primary zipper part. A second elongated trench is proximate a secondary zipper part. The first zipper part and the primary zipper part are selectively attachable, and the second zipper part and the secondary zipper part are selectively attachable. 
     Embodiments of the third aspect of the disclosure can include any one or a combination of the following features:
         wherein the first zipper part and the primary zipper part form a first zipper assembly, wherein the second zipper part and the secondary zipper part form a second zipper assembly, wherein the second elongated trench extends around a portion of the outer perimeter of the cushion, and wherein the second zipper assembly is disposed over the second elongated trench.       

     These and other aspects, objects, and features of the present disclosure will be understood and appreciated by those skilled in the art upon studying the following specification, claims, and appended drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       In the drawings: 
         FIG. 1  is a side perspective view of a vehicle interior with seating assemblies including seating assembly covers; 
         FIG. 2  is a side perspective view of a seating assembly with a seating assembly cover; 
         FIG. 3  is an exploded view of a seating assembly with a detached seat cover and a detached seatback cover; 
         FIG. 4  is a perspective view a portion of a seating assembly with a partially detached seat cover; 
         FIG. 5  is a back elevational view of a seat cover; 
         FIG. 6  is a perspective view of a portion of a seating assembly without a seat cover; 
         FIG. 7  is a perspective view of a portion of a seating assembly with a partially removed seat cover; 
         FIG. 8  is a rear elevational view of a portion of a seating assembly with a seat cover; 
         FIG. 9  is a perspective view of a seating assembly with a partially detached seatback cover; 
         FIG. 10  is a back elevational view of a seatback cover; 
         FIG. 11  is a perspective view of a seating assembly without a seatback cover; 
         FIG. 12  is a perspective view of a seating assembly with a partially detached seatback cover; 
         FIG. 13  is a back perspective view of a seating assembly with a seatback cover; 
         FIG. 14  is a cross-sectional view of a first disengageable seal in a first trench taken along line XIII-XIII of  FIG. 2 ; 
         FIG. 15  is a side perspective view of a portion of a seat cushion with a first disengageable seal and an attachment assembly disposed in a first trench; 
         FIG. 16  is a cross-sectional view of a second disengageable seal proximate a second trench taken along line XIV-XIV of  FIG. 2 ; 
         FIG. 17  is a side perspective view of a portion of a seat cushion with a second disengageable seal and an attachment assembly disposed proximate a second trench; 
         FIG. 18  is a perspective view of a seating assembly without a seating assembly cover and with first and second seat trenches and first and second seatback trenches; 
         FIG. 19A  is a perspective view of a zipper assembly having a coiled construction; 
         FIG. 19B  is a perspective view of a zipper assembly having a molded construction; 
         FIG. 19C  is an elevational view of a portion of a zipper assembly; 
         FIG. 19D  is an elevational view of an actuator of a zipper assembly; 
         FIG. 20  is a top elevational view of a seat cover showing the directions of fastener actuation; 
         FIG. 21  is a top elevational view of the seatback cover showing the directions of fastener actuation; 
         FIG. 22A  is a front elevational view of a seatback cover showing the directions of fastener actuation; 
         FIG. 22B  is a front elevational view of a seatback cover showing the directions of fastener actuation; 
         FIG. 22C  is a front elevational view of a seatback cover showing the directions of fastener actuation; 
         FIG. 22D  is a front elevational view of a seatback cover showing the directions of fastener actuation; and 
         FIG. 23  is a perspective view of a bench seating assembly and bench seating assembly cover. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     For purposes of description herein, the terms “upper,” “lower,” “right,” “left,” “rear,” “front,” “vertical,” “horizontal,” “interior,” “exterior,” and derivatives thereof shall relate to the disclosure as oriented in  FIG. 1 . However, it is to be understood that the disclosure may assume various alternative orientations, except where expressly specified to the contrary. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise. 
     With reference to the vehicle seating assemblies described below and shown in the attached figures, a vehicle seating assembly may be described from the vantage point of an occupant seated in the seating assembly. The side of a seating assembly disposed on a right side of a seated occupant may be referred to as a right side or a first side of the seating assembly. The side of the seating assembly disposed on a left side of a seated occupant may be referred to as a left side or a second side of the seating assembly. 
     Referring to  FIG. 1 , a vehicle interior  10  is shown. The vehicle interior  10  may include five seating assemblies. Each seating assembly  14  may include a seat  18  and a seatback  22 . Each seating assembly  14  may include a seating assembly cover  26 . A seating assembly cover  26  may include a seat cover  30  for the seat  18  and a seatback cover  34  for the seatback  22 . The seat cover  30  may be referred to as the removable trim cover of the seat  18 . The seatback cover  34  may be referred to as the removable trim cover of the seatback  22 . 
     Vehicle occupants may desire a change in the appearance of a vehicle interior  10 . The appearance of a vehicle interior  10  may be changed by changing the seating assembly covers  26 . Also, occupants may want to replace dirty, ripped, or damaged seating assembly covers  26  with new seating assembly covers  26 . Seating assembly covers  26  may be sold as aftermarket items. Seating assembly covers  26  may also be installed during the seating assembly manufacturing process. During the seating assembly manufacturing process, operators may conveniently attach the seating assembly covers  26  to the seating assemblies. When ordering a car from an Original Equipment Manufacturer, customers may be able select a seating assembly cover  26  from a wide selection of available seating assembly covers  26 . 
     During the design process of a removable seating assembly cover  26  and the seating assembly  14 , an appropriate fit of the seating assembly cover  26  on the seating assembly  14  should be considered. A removable seating assembly cover  26  may be designed so that it may be used in a vehicle for several years or longer. Therefore, consideration may be given to optimal locations of zipper assemblies and other fastener assemblies on the seating assembly cover  26  and the seating assembly  14 . Also, consideration may be given to optimal design of seats  18  and seatbacks  22  for receiving a seating assembly cover  26 . Further, secure attachment of the seating assembly cover  26  to the seating assembly  14  may be evaluated. Additionally, it may be desirable to design the seating assembly cover  26  so that it is convenient for an operator to install during a seating assembly manufacturing process. Accordingly, a seating assembly cover  26  may incorporate many features that may increase customer and operator satisfaction. 
     Referring now to  FIG. 2 , as previously discussed, the seating assembly  14  may include a seat  18  and a seatback  22 . The seat  18  may include a seat cover  30 . The seat  18  may be mounted on a support  46 . The support  46  may be configured to slide along rails  50  disposed on a vehicle floor  54 . The seatback  22  may include a seatback cover  34 . A headrest  62  may extend from the seatback  22 . Headrest guides may extend into the seatback  22 . The headrest guides may receive the headrest posts  66 . 
     Referring now to  FIG. 3 , the seating assembly  14  is shown with a seat cover  30  and a seatback cover  34  detached from the seating assembly  14 . A seat cushion  74  may be disposed below the removable seat cover  30 . The seat cushion  74  may include a seat surface  78 . The seat cover  30  may include an inner portion  82   a  and an outer portion  86   a.  The seat surface  78  may include an inner portion  82   b  and an outer portion  86   b.  The seat cover  30  may also include a seat flap  90   a.  The seat surface  78  may include a receiving area  90   b  for the seat flap  90   a.    
     With continued reference to  FIG. 3 , a seatback cushion  94  may be disposed below the removable seatback cover  34 . The seatback cushion  94  may include a seatback surface  98 . The seatback cover  34  may include an inner portion  102   a  and an outer portion  106   a.  The seatback surface  98  may include an inner portion  102   b  and an outer portion  106   b.  The seatback cover  34  may include a seatback flap  110   a.  The seatback surface  98  may include a receiving area  110   b  for the seatback flap  110   a.    
     With continued reference to  FIG. 3 , the seating assembly  14  may include a seating assembly frame  112 . The seating assembly frame  112  may include a seat frame  114  for supporting the seat cushion  74 . The seating assembly frame  112  may include a seatback frame  116  for supporting the seatback cushion  94 . The seating assembly frame  112  may also be referred to as a supporting structure for the seating assembly  14 . The seat frame  114  may also be referred to as a supporting structure for the seat  18 . The seatback frame  116  may also be referred to as a supporting structure for the seatback  22 . 
     Referring to  FIGS. 4-8 , various figures of the seat cover  30  and the seat cushion  74  are shown to illustrate the operation of the seat cover  30 . With reference to  FIG. 4 , the seat cover  30  is shown detached from the seat surface  78 . The seat cover  30  may include a first fastener part  118   a  disposed in an inner portion  82   a  of the seat cover  30 . The seat cover  30  may include a second fastener part  122   a  disposed along an outer portion  86   a  of the seat cover  30 . The seat surface  78  may include a primary fastener part  118   b  disposed in an inner portion  82   b  of the seat surface  78 . The seat surface  78  may include a secondary fastener part  122   b  disposed along an outer portion  86   b  of the seat surface  78 . The seat cover  30  may include a third fastener part  126   a  that may be disposed at the rear of the seat cover  30 . The seat surface  78  may include a tertiary fastener part  126   b  that may be disposed at the rear of the seat  18 . The first fastener part  118   a  of the seat cover  30  may be joined to the primary fastener part  118   b  of the seat surface  78  to form a first disengageable seal  130 . The second fastener part  122   a  of the seat cover  30  may be joined to the secondary fastener part  122   b  of the seat surface  78  to form a second disengageable seal  134 . The third fastener part  126   a  of the seat cover  30  may be joined to the tertiary fastener part  126   b  of the seat surface  78  to form a third disengageable seal  138 . 
     In the example shown in  FIG. 4 , the first fastener part  118   a  may include a first zipper part, the second fastener part  122   a  may include a second zipper part, the primary fastener part  118   b  may include a primary zipper part, and the secondary fastener part  122   b  may include a secondary zipper part. The third fastener part  126   a  may include snaps  142   a.  The tertiary fastener part  126   b  may include protrusions  142   b  for receiving the snaps  142   a.  The first disengageable seal  130  may be referred to as a first zipper assembly. The second disengageable seal  134  may be referred to as a second zipper assembly. The third disengageable seal  138  may be referred to as a snap assembly. A fixed inner trim seat cover  140  may be disposed on the seat  18 . 
     Referring to  FIG. 5 , a back of the seat cover  30  is shown. The back of the seat cover  30  may include the first fastener part  118   a,  the second fastener part  122   a,  and the third fastener part  126   a.    
     Referring to  FIG. 6 , the seat cushion  74  is shown without the seat cover  30 . The seat cushion  74  may include the primary fastener part  118   b  and the secondary fastener part  122   b.  In the example shown, a first bolster  150  may extend between a first side  154  of the seat  18  and an inner portion  82   b  of the seat  18 . A second bolster  158  may extend between a second side  162  of the seat  18  and an inner portion  82   b  of the seat  18 . A first segment  144  of the primary fastener part  118   b  may extend between the first bolster  150  and the inner portion  82   b  of the seat  18 . A second segment  145  of the primary fastener part  118   b  may extend between the second bolster  158  and the inner portion  82   b  of the seat  18 . A third segment  146  may extend between the first segment  144  and the second segment  145 . In one example, the primary fastener part  118   b  may be generally U-shaped  147 . A secondary fastener part  122   b  may be disposed on an outer portion  86   b  of the seat  18 . In some examples, the secondary fastener part  122   b  may be disposed around an outside perimeter  149  of the seat  18 . 
     Referring to  FIG. 7 , a partial view of the seat cover  30  is shown with the third fastener part  126   a  extending from the bite line  166 . 
     Referring now to  FIG. 8 , a back view of the seating assembly  14  is shown with the third fastener part  126   a  attached to the seat  18 . 
     With reference to  FIGS. 9-13 , various figures of the seatback cover  34  and the seatback cushion  94  are shown to illustrate the operation of the seatback cover  34 . With continued reference to  FIG. 9 , the seatback cover  34  is shown detached from the seatback surface  98 . The seatback cover  34  may include a first fastener part  168   a  disposed in an inner portion  102   a  of the seatback cover  34 . The seatback cover  34  may include a second fastener part  172   a  disposed along an outer portion  106   a  of the seatback cover  34 . The seatback surface  98  may include a primary fastener part  168   b  disposed in an inner portion  102   b  of the seatback surface  98 . The seatback surface  98  may include a secondary fastener part disposed along an outer portion  106   b  of the seatback surface  98 . The seatback cover  34  may include a third fastener part  176   a  that may be disposed at the bottom of the seatback cover  34 . The seatback surface  98  may include a tertiary fastener part  176   b  that may be disposed at the bottom of the seatback  22 . The first fastener part  168   a  of the seatback cover may be joined to the primary fastener part  168   b  of the seatback surface  98  to form a first disengageable seal  180 . The second fastener part  172   a  of the seatback cover  34  may be joined to the secondary fastener part  172   b  of the seatback  22  surface to form a second disengageable seal  184 . The third fastener part  176   a  of the seatback cover  34  may be joined to the tertiary fastener part  176   b  of the seatback surface  98  to form a third disengageable seal  188 . A fixed inner trim seatback cover  190  may be disposed on the seatback  22 . 
     In the example shown in  FIG. 9 , the first fastener part  168   a  may include a first zipper part, the second fastener part  172   a  may include a second zipper part, the primary fastener part  168   b  may include a primary zipper part, and the secondary fastener part  172   b  may include a secondary zipper part. The third fastener part  176   a  may include snaps  192   a.  The tertiary fastener part  176   b  may include protrusions  192   b  for receiving the snaps  192   a.  The first disengageable seal  180  may be referred to as a first zipper assembly. The second disengageable seal  184  may be referred to as a second zipper assembly. The third disengageable seal  188  may be referred to as a snap assembly. 
     Referring to  FIG. 10 , a back of the seatback cover  34  is shown. The back of the seatback cover  34  may include a first fastener part  168   a,  a second fastener part  172   a,  and a third fastener part  176   a.    
     Referring to  FIG. 11 , the seatback cushion  94  is shown without the seatback cover  34 . 
     The seatback cushion  94  may include a primary fastener part  168   b  and a secondary fastener part  172   b.  In the example shown, a first bolster  200  extends between the first side  204  of the seatback  22  and the inner portion  102   b  of the seatback  22 . A second bolster  208  extends between the second side  212  of the seatback  22  and the inner portion  102   b  of the seatback  22 . The primary fastener part  168   b  may be generally U-shaped. A secondary fastener part  172   b  may be disposed on an outer portion  106   b  of the seatback  22 . A first segment  194  of the primary fastener part  168   b  may extend between the first bolster  200  and the inner portion  102   a  of the seatback  22 . A second segment  195  of the primary fastener part  168   b  may extend between the second bolster  208  and the inner portion  102   b  of the seatback  22 . A third segment  196  may extend between the first segment  194  and the second segment  195 . In one example, the primary fastener part  168   b  may be generally U-shaped  197 . 
     Referring to  FIG. 12 , the seating assembly  14  is shown with the third fastener part  176   a  extending from the bite line  166 . 
     Referring to  FIG. 13 , a back view of the seating assembly  14  is shown with the third fastener part  176   a  attached to the seatback  22 . 
     With reference to  FIGS. 1-13 , the space disposed between the seat cushion  74  and the seatback cushion  94  at the seating assembly  14  bite line  166  may have adequate clearance to minimize the operator effort needed to pass through the seat flap  90   a  and the seatback flap  110   a.  Snaps  142   a  may be used to locate the seat flap  90   a  on the seat cushion  74 . Snaps  192   a  may be used to locate the seatback flap  110   a  on the seatback cushion  94 . Thus, snaps  142   a,    192   a  may generally consistently locate the seat cover  30  and the seatback cover  34  at designated locations on the seating assembly  14 . Snaps  142   a,    192   a  may be minimally degradable with repeated use or variation in assembly. Snaps  142   a,    192   a  may include rattle-free, polyacetal snaps (for example, YKK SP100), which may minimize corrosion. In various examples, the third disengageable seal  138  for the seat  18  and/or the third disengageable seal  188  for the seatback  22  may include hook and loop or other attachments. 
       FIGS. 14-18  show details relating to attachment of a seat cover  30  to a seat  18  and attachment of a seatback cover  34  to a seatback  22 . 
     Referring to  FIGS. 14 and 15 , an attachment assembly  220  may be disposed in a first trench  224 . The first trench  224  may be disposed in the seat  18  or the seatback  22 . The first trench  224  may be disposed proximate an inner portion  82   b  of the seat  18  or an inner portion  102   b  of the seatback  22 . In various examples, the first trench  224  may be disposed proximate a seating assembly  14  cover seam. In various examples, the first trench  224  may be disposed between a bolster and a substantially flat seating surface. In various examples, the first trench  224  may be disposed next to a seating assembly area that includes an airbag, a bladder, or other similar structure that may change the contour of the seating assembly  14 . The fixed inner trim seat cover  140  is shown disposed on the seat cushion  74 . The fixed inner trim seat cover  140  is shown attached to the primary zipper portion  118   b.  The removable trim cover of the seat  18  (seat cover  30 ) is shown attached to the first zipper portion  118   a.    
     With continued reference to  FIGS. 14 and 15 , in the example shown, the attachment assembly  220  may include the first elongated wire  228 , the second elongated wire  232 , and the hog ring  236 . The primary zipper portion  118   b  may be attached to a first elongated wire  228 . A second elongated wire  232  may be attached to a vehicle interior  10  or a seating assembly frame  112 . The first elongated wire  228  is sometimes referred to as a listing wire. A hog ring  236  may attach the first elongated wire  228  to the second elongated wire  232 . A hog ring  236  may include a first hook portion  240  and a second hook portion  244 . The first hook portion  240  and the second hook portion  244  may oppose each other. The first elongated wire  228  may be disposed in the first hook portion  240 . The second elongated wire  232  may be disposed in the second hook portion  244 . 
     Referring again to  FIGS. 14 and 15 , in the example shown, a first trench  224  may be defined by a first segment  248   a,  a second segment  248   b,  a third segment  248   c,  and a fourth segment  248   d.  The first segment  248   a  may include a chamfered segment or a linear segment. The second segment  248   b  may extend from the bottom of the first segment  248   a  to a third segment  248   c  that may define the floor of the first trench  224 . In the example shown, the third segment  248   c  may be linear. The floor of the first trench  224  may have a width W 1 . A fourth segment  248   d  may extend from the third segment  248   c  to the seat surface  78 . The third segment  248   c  may have a length D. The dimension D may indicate the depth of the first trench  224 . A rounded corner may be present at the junction of the fourth segment  248   d  and the seat surface  78 . The width of the first trench  224  may be greater at the seat surface  78  than at the floor of the first trench  224 . For example, width W 3  at the seat surface  78  may be greater than width W 1  at the floor of the first trench  224 . An intermediate width W 2  that is longer than the width W 1  at the floor of the first trench  224  and shorter than width W 3  at the seat surface  78  may be disposed along the first segment  248   a.  The distance (for example, W 2 , W 3 ) between the first segment  248  and the fourth segment  248   d  may progressively increase in the direction from the floor of the first trench  224  to the seat surface  78 . 
     With continued reference to  FIGS. 14 and 15 , the primary fastener part  118   b  may be attached to the first elongated wire  228  by soldering, crimping, or another method. Alternatively, the primary fastener part may include listing pockets for attaching the primary fastener part  118   b  to the first elongated wire  228 . The first fastener part  118   a  may be joined with the primary fastener part  118   b  to form a first disengageable seal  130 . Arrows I ( FIG. 14 ) indicate the direction in which tension may be applied to the first disengageable seal  130  as the first zipper part  118   a  of the seatback cover  34  may be joined to the primary zipper part  118   b.  The depth D of the first trench  224  may be designed to provide for the added width of the first disengageable seal  130  and to prevent occupant discomfort. The outboard upper edge (first segment  248   a ) of the first trench  224  may be chamfered, or rounded, to reduce the interference between the actuator  302  ( FIGS. 19A-19B, 19D ) and the outboard wall (first and second segments  248   a,    248   b ) of the first trench  224 . Also, in various examples, the first trench  224  may be wider than the hog ring  236 . 
     Referring to  FIG. 15 , the attachment assembly  220  and the first zipper assembly  130  (first disengageable seal  130 ) are shown disposed in the first trench  224 . The first trench  224  may be disposed in the seat cushion  74 . The seat frame  114  may be disposed below the seat cushion  74 . The first elongated wire  228  and the second elongated wire  232  are shown disposed along a length of the first trench  224 . Hog rings  236  may be disposed along the first and second elongated wires  228 ,  232 . A wire  264  may extend between the hog rings  236  and the seat frame  114 . The wire  264  may secure the hog rings  236  to the seat frame  114 . 
     With reference to  FIG. 16 , the second disengageable seal  134  (second zipper assembly  134 ) is shown disposed at an outer portion  86   b  of the cushion  74 . The second disengageable seal  134  may be disposed at an outside perimeter  149  of the cushion  74 . The second disengageable seal  134  may be formed when the secondary zipper part  122   b  coupled to the cushion cover  274  and the second zipper part  122   a  disposed on the seat cover  30  may be joined. The secondary zipper part  122   b  may be fastened to a cushion cover  274 . The fixed inner trim seat cover  140  is shown disposed on the seat cushion  74 . The fixed inner trim seat cover  140  is shown attached to the secondary fastener part  122   b.  The removable trim cover of the seat  18  (seat cover  30 ) is shown attached to the second zipper portion  122   a.  The fixed inner trim seat cover  140  may include the cushion cover  274 . 
     With continued reference to  FIG. 16 , a second trench  270  may be formed in the seat cushion  74  to provide space for the second disengageable seal  134 . The second trench  270  may be referred to as a salvage trench. The second trench  270  and the second disengageable seal  134  may be disposed around the outside perimeter  149  of the seat cushion  74 . The second trench  270  may be defined by a first segment  282   a,  a second segment  282   b,  and a third segment  282   c.  The second trench  270  may provide space for movement of the second disengageable seal  134  into and out of the second trench  270 . 
     Referring to  FIG. 17 , the second zipper assembly  134  is shown disposed proximate the second trench  270 . The seat frame  114  may be disposed below the seat cushion  74 . The secondary fastener part  122   b  may be attached to a cushion cover  274  that may surround a lower portion of the seat cushion  74 . Alternatively, the secondary fastener part  122   b  may be otherwise attached to the seat cushion  74 , the seat frame  114 , or another secure location. 
       FIG. 18  shows a perspective view of a seating assembly  14  without a seating assembly cover  26  and with first and second trenches  224 ,  270  on the seat cushion  74  and first and second trenches  224 ,  270  on the seatback cushion  94 . The first and second trenches  224 ,  270  on the seat cushion  74  and the first and second trenches  224 ,  270  on the seatback cushion  94  may be disposed behind first and second zipper assemblies  130 ,  180  and  134 ,  184 . 
     The geometries and positions of the first and second trenches  224 ,  270  on the seat cushion  74  and the seatback cushion  94  may be designed to facilitate convenient and efficient operation of the first and second zipper assemblies  130 ,  180  and  134 ,  184 . In general, location of zipper assemblies on seating surfaces with compound curves may cause the zipper assemblies or individual zipper ribbons to buckle. Also, lateral curvature of a zipper geometry may constrain the placement of a zipper assembly on a seating surface. Zipper assemblies may be supported by a smooth surface with minimal steps. Zipper assemblies may be supported by a continuous surface with minimal interruptions. Thus, the contours of the first and second trenches  224 ,  270  disposed on the seat  18  and the seatback  22  may be designed to optimize first and second zipper assembly  130 ,  180  and  134 ,  184  function. 
     Accordingly, with reference to  FIGS. 14-18 , the first and second trenches  224 ,  270  disposed on the seat  18  and the seatback  22  may be designed to allow fluid actuation of the respective first and second zipper assemblies  130 ,  180  and  134 ,  184  while generating sufficient tension in the seating assembly cover  26  when the seating assembly cover  26  may be attached to the seating assembly  14 . 
     With reference to  FIGS. 19A-19D , exemplary zipper assemblies are shown. Referring to  FIG. 19A , a zipper assembly  290  having a coiled construction is shown. The zipper assembly  290  having a coiled construction may include coils  294 , ribbons  298 , and an actuator  302 . Referring to  FIG. 19B , a zipper assembly  306  having a molded construction is shown. The zipper assembly  306  having a molded construction may include teeth  310 , ribbons  298 , and an actuator  302 . The zipper assembly  306  having a molded construction may include teeth  310  that may be centered in a zipper ribbon  298 . 
     With reference to  FIGS. 19A and 19B , various combinations of zipper assemblies  290  having a coiled construction and zipper assemblies  306  having a molded construction may be used for the first and second zipper assemblies  130 ,  134  and  180 ,  184  of the respective seat cover  30  and the seatback cover  4 . A zipper assembly  306  having a molded construction may operate more smoothly than a zipper assembly  290  having a coiled construction. In some examples, the first and second zipper assemblies  130 ,  180  and  134 ,  184  may have a coiled construction. In one example, a zipper assembly  306  having a molded construction may be used for the first zipper assembly  130 ,  180  and a zipper assembly  290  having a coiled construction may be used for the second zipper assembly  134 ,  184 . 
     In some examples, for reduced binding and generally smooth operation, the coil side of the secondary zipper part may be oriented outward and away from the surface of the cushion (seat cushion  74  or seatback cushion  94 ) foam. When a ribbon  298  with a coil  294  is used for the primary zipper part, then a coil side of the ribbon  298  may be oriented toward the outer wall (comprised of first and second segments  248   a,    248   b ) of the first trench  224 . Orienting a ribbon  298  with its coil facing outward may force the coil  294  to expand. A ribbon  298  having a coil  294  may be oriented with the coil  294  in a neutral or expanded condition. In various water repellant applications, a zipper assembly  290  having a coiled construction may be oriented with the coils facing toward the foam with a ribbon  298  having polyurethane film coated tape facing outward from the foam. For attachment of the seat cover  30  to the fixed cushion cover  274  on the lower portion of the cushion (i.e., along the second zipper assembly  134 ,  184 ), a No. 5 coil fire retardant zipper construction may be used. The No. 5 coil fire retardant zipper construction may offer a combination of low cost, strength, flexibility and availability. 
     With continued reference to  FIG. 19C , a zipper assembly may include a box  314 , a pin  318 , and stiffeners  322 . For ease of use, a box  314  and a pin  318  of the first and second zipper assemblies  130 ,  180 , and  134 ,  184  may be engaged on the outboard side of the seating assembly  14 . The actuator  302  may move to the fully closed position on the inboard side of the seating assembly  14 . The outboard side of the seating assembly  14  generally relates to the side of the seating assembly  14  located closer to a vehicle door. The inboard side of the seating assembly  14  generally relates to the side of the seating assembly  14  located closer to a vehicle interior  10 . 
     The location of the zipper start  320  on the outboard side of the seating assembly  14  may improve the ease of engaging the zipper box  314  and the zipper pin  318  proximate the door opening. With exemplary reference to the seat  18 , at the zipper start  320  of the first zipper assembly  130 , small stiffeners  322  may be sewn into the primary zipper part  118   b  and the first zipper part  118   a.  Similarly, at the start of the second zipper assembly  134 , small stiffeners  322  may be sewn into the secondary zipper part  122   b  and the second zipper part  122   a.    
     With reference to  FIG. 19D , an actuator  302  for a zipper assembly  130 ,  134  may include a cord  326  and a pull tab  330 . The actuator  302  may have a length that is convenient for an operator to grab. An actuator  302  may include a contrasting high visibility color pull cord  326 . The cord  326  may be soft. 
     Referring now to  FIG. 20 , an example of a seat cover  30   a  is shown. Arrows II may indicate the direction of attachment of the first zipper assembly  130  to the seat surface  78 . Arrows III may indicate the direction of attachment of the second zipper assembly  134  to the seat surface  78 . Arrow IV may indicate the outboard direction of the seat  18  relative to the vehicle. During the seat cover  30   a  attachment process, an operator may attach the seat cover  30   a  to the seat surface  78  with the first zipper assembly  130  prior to attaching the seat cover  30   a  to the seat surface  78  with the second zipper assembly  134 . 
     Referring now to  FIG. 21 , an example of a seatback cover  34   a  is shown. Arrows II indicate the direction of attachment of the first zipper assembly  180  to the seatback surface  98 . Arrows III direct the direction of attachment of the second zipper assembly  184  to the seatback surface  98 . Arrow IV may indicate the outboard direction of the seatback  22  relative to the vehicle. During the seatback  22  cover attachment process, an operator may attach the seatback cover  34   a  to the seatback surface  98  with the first zipper assembly  180  prior to attaching the second zipper assembly  184  to the seatback surface  98 . 
     Referring now to  FIGS. 22A-22D , examples of several seatback covers are shown. The seatback  22  covers include various configurations of first disengageable seals  180  on seatback covers. It is contemplated that the examples of several seatback cover shown in  FIGS. 22A-22D  may also include second disengageable seals  184  disposed around outer portions of the seatback covers. 
     Referring to  FIG. 22A , seatback cover  34   b  is shown. The first disengageable seal  180  may be joined together in the direction shown by arrows II. An actuator  302  may be pulled from a starting point A disposed at an upper portion of the seatback  22 . The actuator  302  may be pulled along a first segment  340   a  that may extend inwardly and diagonally from the starting point A. A latitudinal second segment  340   b  may extend downward from the first segment  340   a.  A lateral third segment  340   c  may extend along a bottom portion of the seatback  22 . A latitudinal fourth segment  340   d  may extend upward from the third segment  340   c.  A fifth segment  340   e  may extend outwardly and diagonally to an ending point B disposed on the first side of the seatback  22 . 
     Referring to  FIG. 22B , another example of a configuration of a first disengageable seal  180  on a seatback cover  34   c  is shown. A seatback cover  34   c  may include a first disengageable seal  180  that may include a first longitudinal part  344   a  and a second longitudinal part  344   b.  The first and second longitudinal parts  344   a,    344   b  may be substantially parallel to one another. Each of the first and second longitudinal parts  344   a,    344   b  may include a starting point A disposed at an upper portion of the seatback  22  and an ending point B may be disposed at a lower portion of the seatback  22 . For each of the first and second longitudinal parts  344   a,    344   b,  an operator may pull a fastener in the direction II shown by arrows from a starting point A disposed at an upper portion of the seatback  22  to an ending point B disposed at a lower portion of the seatback  22 . 
     Referring to  FIG. 22C , another example of a configuration of a first disengageable seal  180  on a seatback cover  34   d  is shown. A seatback cover  34   d  may include a first disengageable seal  180  that may include a first longitudinal part  344   a  and a second longitudinal part  344   b.  The first and second longitudinal parts  344   a,    344   b  may be substantially parallel to one another. Each of the first and second longitudinal parts  344   a,    344   b  may include a starting point A disposed at a top edge of the seatback  22  and an ending point B may be disposed at a lower portion of the seatback  22 . For each of the first and second longitudinal parts  344   a,    344   b,  an operator may pull an actuator  302  in the direction shown by arrows II from a starting point A disposed at a top edge of the seatback  22  to an ending point B disposed at a lower portion of the seatback  22 . 
     Referring to  FIG. 22D , another example of a configuration of a first disengageable seal on a seatback cover  34   e  is shown. A seatback cover  34   e  may include a first disengageable seal that may include a first substantially longitudinal part  344   a  and a second substantially longitudinal part  344   b.  The first substantially longitudinal part  344   a  may include a starting point A disposed at the first side of the upper portion of the seatback cover  34   e.  A first segment  344   a - 1  may extend diagonally inward from the starting point A. A second segment  344   a - 2  may extend longitudinally downward to the ending point B. The second substantially longitudinal part  344   b  may include a starting point A disposed at the second side of the upper portion of the seatback cover  34   e.  A first segment  344   b - 1  may extend diagonally inward from the starting point A. A second segment  344   b - 2  may extend longitudinally downward to the ending point B. For each of the first and second substantially longitudinal parts  344   a,    344   b,  an operator may pull an actuator  302  in the direction shown by arrows II from a starting point A disposed at an upper portion of the seatback  22  to an ending point B disposed at a lower portion of the seatback  22 . 
     Referring now to  FIG. 23 , a bench seating assembly  364  with various zipper covers is shown. The bench seating assembly  364  may include a bench seat  368  and a bench seatback  372 . The bench seatback  372  may be a split into first and second parts  372   a,    372   b.  The first and second parts  372   a,    372   b  of the bench seatback  372  may be individually and simultaneously rotatable relative to the bench seat  368 . The bench seat  368  may include a first disengageable seal  376  having a first part  376   a,  a second part  376   b,  a third part  376   c,  and a fourth part  376   d.  The bench seat  368  may also include a second disengageable seal  380  disposed around an outer portion of the cushion of the bench seat  368 . The bench seatback  372  may include a first disengageable seal  376  and a second disengageable seal  380 . 
     With continued reference to  FIG. 23 , the bench seating assembly  364  may include first and second trenches  224 ,  270  (not shown) disposed behind the respective first and second disengageable seals  376 ,  380 . The zipper covers of the bench seating assembly  364  may be designed to leave uncovered difficult-to-trim areas (for example, headrest guide post access areas, seatbelt pockets, armrest cavity, seatbelt retractor tower, dump latch bezel). The aforementioned difficult-to-trim areas may be located on the fixed inner trim of the bench seating assembly. 
     In various examples, the seat cushion  74  and the seatback cushion  94  may be examples of intermediate members. Intermediate members may be seat  18  and seatback  22  parts that the seat cover  30  and the seatback cover  34  may be disposed on. Intermediate members may include hard seating surfaces, mesh seating surfaces, sling seating surfaces, and other seating surfaces. 
     In various examples, a vehicle member may include a seat frame  114 , a seatback frame  116 , a vehicle floor  54 , a vehicle interior side panel, or other vehicle portion. The attachment assembly  220  that may be disposed in the first trench  224  may be secured to the vehicle member. 
     A variety of advantages may be derived from the present disclosure. The seat cover and the seatback covers may include combinations of features designed to optimize craftsmanship, durability, and operator friendliness. The use of one or more disengageable seals for attaching the seating assembly cover to the seating assembly may have numerous benefits. The first disengageable seal may automatically position the respective seat or seatback cover on the respective seat or seatback cushion. The use of a first zipper assembly and a second zipper assembly that may each include separate zippers may allow for consistent, repeatable craftsmanship, independent of the skill level of the operator. The use of the first zipper assembly may provide positive, high strength attachments between the removable seat or seatback cover and the seat or seatback. High strength attachments may provide cover pattern developers freedom to fit and tighten the seat and seatback covers while minimizing the possibility of inadvertent detachment of the seat or seatback cover from the seat or the seatback. Tight attachment of the seat or seatback cover to the respective seat or seatback may reduce wear of the seat or seatback cover and may improve durability of the seat or seatback cover. High strength attachments may limit the mobility of seat or seatback cover and may reduce the stretch and distortion of the seat or seatback cover that occurs with use. Location of the first and second trenches behind the first and second zipper assemblies facilitates efficient zipper assembly operation and a smoother seat and seatback surface. 
     It is to be understood that variations and modifications can be made on the afore-mentioned structure without departing from the concepts of the present disclosure, and further it is to be understood that such concepts are intended to be covered by the following claims unless these claims by their language expressly state otherwise.