PATENT DOCUMENT

Publication Number: US-12024820-B1
Application Number: US-202318225614-A
Country: US
Kind Code: B1

Title: Multi-tensile assembly for a band used with electronic devices

Abstract:
An assembly with multiple structures, each having different tensile strengths, is integrated into a band used with various electronic devices. The assembly may include a low-tensile structure designed to elongate under an initial tension, thus allowing the band to stretch and lengthen. However, additional tension applied to the band is transferred to other structures of the assembly. Further, when the applied tension causes the structure with the highest tensile strength in the assembly to straighten (or substantially straighten), the high-tensile strength structure prevents the band from further elongation. The low-tensile strength structure allows the band to conform to a user, while the high-tensile strength structure protects the low-tensile strength structure from damage or unwanted deformation.

Claims:
What is claimed is: 
     
       1. A band for a head-mountable device, the band comprising:
 an outer cover that includes an internal chamber; and 
 an assembly located in the internal chamber, the assembly comprising:
 a first structure comprising a first tensile strength; 
 a second structure comprising a second tensile strength different from the first tensile strength; and 
 a third structure comprising a third tensile strength different from the first tensile strength and different the second tensile strength. 
 
 
     
     
       2. The band of  claim 1 , wherein the assembly limits elongation of the outer cover while the third structure is under tension. 
     
     
       3. The band of  claim 2 , wherein:
 in response to the tension, the first structure is elongated from a first length to a second length, and 
 in response to the first structure elongating to the second length, the second structure elongates. 
 
     
     
       4. The band of  claim 3 , wherein:
 the third structure is positioned at a first angle relative to the first structure, 
 in response to the tension, the third structure is positioned at a second angle relative to the first structure, the second angle being less than the first angle, and 
 the third structure prevents further elongation of the first structure and the second structure. 
 
     
     
       5. The band of  claim 1 , wherein:
 the second tensile strength is greater than the first tensile strength, and 
 the third tensile strength is greater than the second tensile strength. 
 
     
     
       6. The band of  claim 1 , wherein the third structure is coaxial with respect to the first structure. 
     
     
       7. The band of  claim 6 , wherein the third structure is coaxial with respect to the first structure. 
     
     
       8. The band of  claim 1 , wherein:
 the first structure comprises elastomer, 
 the second structure comprises a polymer, and 
 the third structure comprises a metal. 
 
     
     
       9. The band of  claim 8 , wherein the second structure comprises a braided polymer. 
     
     
       10. The band of  claim 1 , wherein the first structure is surrounded by the second structure and the third structure. 
     
     
       11. A band for a head-mountable device, the band comprising:
 a first structure, 
 a second structure, and 
 a third structure, wherein in response to an applied force that i) elongates the first structure and the second structure and ii) pulls the third structure, the third structure counters the applied force and prevents further elongation of the first structure and the second structure. 
 
     
     
       12. The band of  claim 11 , wherein the third structure wraps around the first structure. 
     
     
       13. The band of  claim 11 , wherein:
 prior to the applied force, the third structure is positioned at a first angle relative to the first structure, and 
 in response to the applied force, the third structure is positioned at a second angle relative to the first structure, wherein the second angle is less than the first angle. 
 
     
     
       14. The band of  claim 11 , further comprising an outer cover that includes a first end and a second end opposite the first end, wherein the third structure is coupled to the first end and the second end. 
     
     
       15. The band of  claim 14 , wherein the third structure comprises a metal wire. 
     
     
       16. A head-mountable device, comprising:
 a frame that carries a display; and 
 a band coupled with the frame, the band comprising:
 an outer cover that includes an internal chamber; and 
 an assembly located in the internal chamber, the assembly comprising:
 an elastomer structure comprising a first tensile strength; 
 a polymer structure comprising a second tensile strength greater than the first tensile strength; and 
 a metal structure comprising a third tensile strength greater than the first tensile strength and greater than the second tensile strength. 
 
 
 
     
     
       17. The head-mountable device of  claim 16 , wherein the polymer structure comprises a braided polymer. 
     
     
       18. The head-mountable device of  claim 17 , wherein the elastomer structure and the metal structure are located within the braided polymer. 
     
     
       19. The head-mountable device of  claim 17 , wherein the elastomer structure is coaxial with respect to the braided polymer. 
     
     
       20. The head-mountable device of  claim 16 , wherein the metal structure, under tension, prevents elongation of the outer cover.

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     The present application claims the benefit of U.S. Provisional Application No. 63/409,188, entitled “MULTI-TENSILE ASSEMBLY FOR A BAND USED WITH ELECTRONIC DEVICES,” filed Sep. 22, 2022, the content of which is incorporated herein by reference in its entirety for all purposes. 
    
    
     TECHNICAL FIELD 
     This application is directed to a band for electronic devices, and more particularly, to a band with structures having different tensile strengths that allow the band to elongate to a certain dimension and subsequently providing a lockout to prevent further elongation. 
     BACKGROUND 
     Some devices are equipped with stretchable bands used to secure the device to a user&#39;s body, including, for example, a user&#39;s appendage. Generally, bands include elastically stretchable material used to conform to the appendage. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Certain features of the subject technology are set forth in the appended claims. However, for purpose of explanation, several embodiments of the subject technology are set forth in the following figures. 
         FIG.  1    and  FIG.  2    illustrate a head-mounted device, in accordance with aspects of the present disclosure. 
         FIG.  3    and  FIG.  4    illustrate an embodiment of a multi-tensile assembly, in accordance with aspects of the present disclosure. 
         FIG.  5    illustrates a plan view of a band with a multi-tensile assembly integrated with the band, in accordance with aspects of the present disclosure. 
         FIG.  6    illustrates a plan view of a band under tension, in accordance with aspects of the present disclosure. 
         FIG.  7    illustrates a plan view of a band under additional tension, in accordance with aspects of the present disclosure. 
         FIG.  8    illustrates a plan view of a band under additional tension, in accordance with aspects of the present disclosure. 
         FIG.  9    and  FIG.  10    illustrate alternate embodiments of multi-tensile assemblies integrated with respective bands, in accordance with aspects of the present disclosure. 
         FIG.  11 A ,  FIGS.  11 B, and  11 C  illustrate alternate devices with multi-tensile assemblies, in accordance with aspects of the present disclosure. 
         FIG.  12    illustrates a schematic diagram of an electronic system, in accordance with aspects of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The detailed description set forth below is intended as a description of various configurations of the subject technology and is not intended to represent the only configurations in which the subject technology may be practiced. The appended drawings are incorporated herein and constitute a part of the detailed description. The detailed description includes specific details for the purpose of providing a thorough understanding of the subject technology. However, it will be clear and apparent to those skilled in the art that the subject technology is not limited to the specific details set forth herein and may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the subject technology. 
     A head-mountable device (HMD), such as a head-mounted display, headset, visor, smartglasses, head-up display, etc., can perform a range of functions that is determined by the components (e.g., sensors, circuitry, and other hardware) included with the HMD as manufactured. For example, head-mounted displays with virtual reality capabilities can replace a natural, real-life environment with virtual content. In another example, head-mounted displays with augmented, or mixed, reality capabilities allow users to view certain computer-generated images superimposed onto a natural, real-life environment. 
     In order to fit and maintain an HMD on a user&#39;s head, a band can attach to the HMD. Traditional bands include one or more fabrics. Alternatively, or in combination, traditional bands come in different sizes to accommodate different user head sizes. 
     The subject technology is directed to an assembly of structures, or components, with different tensile strengths integrated together to form a multi-tensile assembly. Accordingly, an assembly described herein may include different structures, each with a material (or materials) having different abilities to resist breaking under tension. As an example, an assembly described herein includes a stretchable material, a braided cable, and a wire. The stretchable material may include an elastomer material. The braided cable may include multiple strands of polymers (e.g., polyethylene terephthalate (PET)). The wire may include a metal or metal alloy. The tensile strength of the materials of the assembly is based upon the respective makeups. 
     When the structures of the assembly are integrated together, the braided cable can wrap around and conceal the wire and the stretchable material. The wire may wrap loosely around the stretchable material. Put another way, the wire may be under minimal or no tension when wrapped around the stretchable material. When integrated with a band, the assembly provides the band with different characteristic behaviors for responding to tension. For example, when the band begins to undergo tension, the band lengthens and the load provided by the tension initially causes the stretchable material, having the lowest relative tensile strength of the structures of the assembly, to lengthen by stretching. Beneficially, the properties of the stretchable material allow the band to more easily stretch around, and conform to, a user&#39;s head. 
     Additional tension (e.g., a higher pulling force) placed on the band may cause the band to further lengthen. The additionally applied tension may be transferred to the braided cable, which has a higher tensile strength than that of the stretchable material, and accordingly, is relatively inelastic as compared to the stretchable material. The braided cable provides relief to the stretchable material by reducing the likelihood of plastic deformation, breakdown, or damage to the stretchable material, thus reducing the likelihood of unwanted permanent deformation of the stretchable material. In order to absorb the additional tension, the strands of the braided cable are displaced. For example, the tension causes the angular displacement of the strands to change, which can elongate the braided cable. 
     When additional tension is applied, the band can further lengthen. The additional tension pulls the wire (having the highest relative tensile strength) and causes the wire to transition from its original, loose position to being relatively straight. The displacement of the wire may include an angular displacement. When the wire resists further straightening, the band will no longer lengthen under additional applied tension. Beneficially, the wire acts as a lockout feature that protects the stretchable material and/or the braided cable from damage due to stress and strain from the additional applied tension. By integrating the assembly with the band, the band can provide a low-stiffness feature for enhancing user feel and user ability to receive an HMD around the user&#39;s head, while also minimizing or preventing the HMD and/or the band from sagging from the user&#39;s head, as well as protecting the structural integrity of the band. 
     These and other embodiments are discussed below with reference to  FIGS.  1 - 12   . However, those skilled in the art will readily appreciate that the detailed description given herein with respect to these Figures is for explanatory purposes only and should not be construed as limiting. 
     According to some embodiments, for example as shown in  FIG.  1   , a system  100  can include a head-mountable device  102  that includes a frame  104  and a band  106  coupled to the frame  104 . The frame  104  can be positioned in front of the eyes of a user to provide information within a field of view of the user. The frame  104  can provide nose pads or another feature to rest on a user&#39;s nose. The frame  104  further includes one or more displays  108  (e.g., one for each eye). The head-mountable device  102  can include a camera  110  for capturing a view of an environment external to the head-mountable device  102 . The one or more displays  108  can provide visual (e.g., image or video) output based on the view captured by the camera  110 . For example, the one or more displays  108  can transmit light from the camera  110  based on a physical environment for viewing by the user. The one or more displays  108  can include components with optical properties, such as lenses for vision correction based on incoming light from the physical environment. Additionally or alternatively, the one or more displays  108  can provide information as a display within a field of view of the user. Displayed information can be provided to the exclusion of a view of a physical environment or in addition to (e.g., overlaid with) a physical environment. 
     The frame  104  and/or the band  106  can serve to surround a peripheral region of the head-mountable device  102  as well as support any internal components in their assembled position. For example, the frame  104  can enclose and support various internal components (including for example integrated circuit chips, processors, sensors, input/output devices, memory devices, and other circuitry) to provide computing and functional operations for the head-mountable device  102 . 
     The band  106  may provide an outer cover that holds/carries several structures, some of which include elastic properties while others include generally inelastic properties. In this regard, when a load applied by, for example, fitting the system  100  onto a user&#39;s head, the band  106  elongates. The band  106  may subsequently returns to its original size and shape when the load is removed. Also, the band  106  may include an assembly  120  integrated within the band  106 . The assembly  120  may include multiple structures, with the different structures having tensile strength values. Thus, the assembly  120  may be referred to as a multi-tensile assembly. 
     Referring to  FIG.  2   , the band  106  secures with opposing sides, or ends, of the frame  104  and accordingly, the band  106  can wrap or extend along opposing sides of a user&#39;s head. The assembly  120 , including its structures (discussed below), may secure with opposing sides of the band  106 . Further, the placement of the assembly  120  within the band  106  allows at least some components of the assembly  120  to elongate in response to a load applied to the band  106 . Additionally, some components of the assembly  120  may become displaced in response to the applied load, while further limiting the length of the band  106 . This will be shown and described in further detail. 
     Referring to  FIG.  3   , the assembly  120  and its structures are shown. The assembly  120  includes a first structure  122   a , a second structure  122   b , and a third structure  122   c . As non-limiting examples, the first structure  122   a  may include an elastomer structure, spandex, or a combination thereof. Generally, the first structure  122   a  may include a material, or materials, capable of elongating and elastically stretching. For example, the first structure  122   a , under an applied load, may stretch to an additional 10% to 20% of its original length. The second structure  122   b  may include several materials braided, or otherwise weaved, together. Accordingly, the second structure  122   b  may form a braided cable. As non-limiting examples, the second structure  122   b  may include materials such as PET, nylon, polyester, or another polymer. Based on the material makeup, the second structure  122   b  may include relatively inelastic properties as compared to the first structure  122   a . The third structure  122   c  may include a wire. As non-limiting examples, the third structure  122   c  may include a metal (e.g., steel, stainless steel, copper), including a metal structure such as a metal wire. Alternatively, the third structure  122   c  may include one or more materials, such as multiple metal wires or multiple fibers formed from aramid and/or relatively high stiffness yarn, as non-limiting examples. 
     As shown, the third structure  122   c  is wrapped around the first structure  122   a  with relatively low tension, i.e., the third structure  122   c  is wrapped loosely around the first structure  122   a . For example, some spaces or gaps may exist between the first structure  122   a  and the third structure  122   c , as the third structure  122   c  may not be tightly wound around the first structure  122   a . Although not shown, other arrangements are possible. For example, the third structure  122   c  can be located laterally to, and not wrapped around, the first structure  122   a . Further, the second structure  122   b  can receive and conceal both of the first structure  122   a  and the third structure  122   c . When assembled, the assembly  120  can be inserted into an internal chamber  124  (e.g., sleeve) of the band  106 . 
     Based on their respective material makeups, the first structure  122   a , the second structure  122   b , and the third structure  122   c  include different tensile strengths and react to a force in different manners. For example, the first structure  122   a  includes the lowest tensile strength of the assembly  120 , as compared to that of the second structure  122   b  and the third structure  122   c . As a result, the first structure  122   a  is relatively more responsive to an applied tension and may elongate, whereas the second structure  122   b  and the third structure  122   c  may undergo little or no displacement under the same applied tension. However, when the applied tension increases, the additional tension may be transferred to the second structure  122   b , causing displacement of the second structure  122   b  by changing the angle of the braided strands of the second structure  122   b . Thus, the second structure  122   b  may also elongate. The added tension may also cause the angle of the third structure  122   c  to change. 
     Further, when additional tension is applied, the angle of the third structure  122   c  may continue to change, causing the third structure  122   c  to straighten, or become relatively straight. However, the third structure  122   c , having the highest tensile strength of the assembly  120 , may resist additional tension when becoming relatively straight, thus limiting further elongation of the assembly  120  and the band  106 . Accordingly, the third structure  122   c  acts as a lockout feature to prevent further elongation of the band  106 . Beneficially, the band  106  may include enhanced stability, as the assembly  120  serves to limit overstretching of the band  106 , which may cause plastic deformation or breaking. 
     Referring to  FIG.  4   , the first structure  122   a , the second structure  122   b , and the third structure  122   c  of the assembly  120  may be co-axial and thus include a center point  125  that is common to the first structure  122   a , the second structure  122   b , and the third structure  122   c . While the first structure  122   a , the second structure  122   b , and the third structure  122   c  are shown having a circular, or generally circular, cross section, other shapes are possible, including oblong shapes or shapes with 3 or more sides. Additionally, in some embodiments (not shown), at least one of the first structure  122   a , the second structure  122   b , and the third structure  122   c  is not co-axial with respect to the remaining structures. 
       FIGS.  5 - 8    show and describe an exemplary response of the band  106  to applied tension. Referring to  FIG.  5   , the assembly  120  is inserted in the band  106 . The band  106  is shown as having a dimension  130   a , corresponding to a 1-dimensional length. Further, the first structure  122   a  includes a dimension  132   a , corresponding to a diameter of the first structure  122   a . The dimension  130   a  and the dimension  132   a  represent dimensional properties of the band  106  and the first structure  122   a , respectively, with no external force(s) other than gravity acting on the band  106 . 
     Also, as shown in the enlarged view  134   a , a strand  136  (representing additional strands) of the second structure  122   b  is positioned at an angle α 1  with respect to a horizontal line. Further, as shown in the enlarged view  134   b , the third structure  122   c  is positioned at an angle β 1  with respect to a horizontal line. The horizontal line may also define a surface of the first structure  122   a , and accordingly, the angle β 1  is relative to the first structure  122   a . The angle α 1  and the angle β 1  represent angular properties of the strand  136  and the third structure  122   c , respectively, with no external force(s) other than gravity acting on the band  106 . 
     Referring to  FIG.  6   , a force F 1  (e.g., tension) is applied to the band  106 , causing the band  106  to increase to a dimension  130   b , which is greater than the dimension  130   a  (shown in  FIG.  5   ). When the force F 1  is applied to the assembly  120 , the first structure  122   a  may be displaced prior to displacement of the second structure  122   b  and the third structure  122   c . In this manner, the first structure  122   a  may elongate by, for example, approximately in the range of 10-20% of its original length, while little or no displacement of the second structure  122   b  and the third structure  122   c  occurs. This is due in part to the relatively low tensile strength of the first structure  122   a , as compared to that of the second structure  122   b  and the third structure  122   c . Also, based on the force F 1  and resultant elongation of the first structure  122   a , the first structure  122   a  may include a dimension  132   b , representing a reduced diameter of the first structure  122   a  as compared to the dimension  132   a  (shown in  FIG.  5   ). 
     Referring to  FIG.  7   , a force F 2  (e.g., tension) is applied to the band  106 . The force F 2  is greater than the force F 1  (shown in  FIG.  6   ), causing the band  106  to elongate to a dimension  130   c , which is greater than the dimension  130   b  (shown in  FIG.  6   ). The first structure  122   a  may undergo little or no displacement (e.g., elongation), and the additional force applied by F 2  may be transferred to the second structure  122   b , causing displacement of the second structure  122   b . As an example, when approximately 6 Newtons (N) of tension is applied to the band  106 , the first structure  122   a  will no longer elongate. Further, when the tension exceeds 6N, the additional tension may be applied to one or more of the second structure  122   b  and the third structure  122   c.    
     As shown in the enlarged view  134   a , the strand  136  of the second structure  122   b  is displaced to an angle α 2 , which is lower than the angle α 1  (shown in  FIG.  5   ). The angular displacement of the strands (including the strand  136 ) may cause elongation of the second structure  122   b . As shown in the enlarged view  134   b , the third structure  122   c  is displaced to an angle β 2 , which is smaller than the angle β 1  (shown in  FIG.  5   ). Based on the reduced angle (e.g., angle β 2 ), the third structure  122   c  becomes relatively straight, and thus is displaced from its original position in the assembly  120 . 
     Referring to  FIG.  8   , a force F 3  (e.g., tension) is applied to the band  106 . The force F 3  is greater than the force F 2  (shown in  FIG.  7   ), causing the band  106  to further elongate to a dimension  130   d , which is greater than the dimension  130   c  (shown in  FIG.  7   ). As shown in the enlarged view, the third structure  122   c  is displaced to an angle β 3 , which is lower than the angle β 2  (shown in  FIG.  7   ). The third structure  122   c  is wrapped tightly around the first structure  122   a . Moreover, due in part to the relatively high tensile strength of the third structure  122   c , the third structure  122   c  resists additional displacement. The third structure  122   c  can offset or counter additional applied forces to the band  106 , thus holding the band  106  to a maximum length (corresponding to the dimension  130   d ) and preventing displacement of the third structure  122   c , as well as prevent further displacement of the first structure  122   a  and the second structure  122   b . Beneficially, the third structure  122   c  prevents or limits additional stress and strain on the first structure  122   a  and the second structure  122   b , thus reducing the likelihood of breakdown or damage. 
     The multi-tensile properties of the assembly  120  provide several advantages for the band  106 . For example, the first structure  122   a  provides a low-stiffness behavior, allowing the band  106  to elongate in a desired manner, while the third structure  122   c  (and to some degree, the second structure  122   b ) protects the first structure  122   a  from breakdown or damage and further prevents the band  106  from sagging while carrying an HMD (not shown). 
     In addition to the materials selected, other factors can control the assembly  120  to provide different elongation characteristics for the band  106 . For example, referring to  FIG.  5    and prior to any forces (other than gravity) acting on the band  106 , the angle β 1  of the third structure  122   c  can be increased to a greater angle, thus allowing the band  106  to elongate further (i.e., further than the dimension  130   d  shown in  FIG.  8   ) before the third structure  122   c  provides a lockout and prevent the band  106  from additional elongation. Conversely, the angle β 1  of the third structure  122   c  can be decreased to a lower angle, thus limiting the band  106  to a dimension that is shorter than the dimension  130   d . Alternatively, or in combination, the angle α 1  of the second structure  122   b  can be increased or decreased to allow the band  106  to elongate more or less, respectively. Also, the density of the braids that make up the second structure  122   b  can change (i.e., more or less dense) to alter the elongation properties for the band  106 . 
       FIGS.  9  and  10    show different embodiments of an assembly for bands. Although not always expressly shown and described, the assemblies in  FIGS.  9  and  10    may include several features shown and described for prior assemblies. 
     Referring to  FIG.  9   , an assembly  220  includes a structure  242   a  and a structure  242   b . Additionally, the assembly  220  includes a structure  244   a  and a structure  244   b . Also, the assembly  220  includes a structure  246 . The structures  242   a  and  242   b  each includes a relatively low tensile strength, while the structure  246  includes a relatively high tensile strength. The structures  244   a  and  244   b  each includes a tensile strength greater than that of the structures  242   a  and  242   b  but lesser than that of the structure  246 . 
     Also, the assembly  220  is divided into multiple sections, i.e., a section  248   a , a section  248   b , and a section  248   c . Based on the disparate tensile strengths, the assembly  220  can elongate differently in different regions. For example, the structures  242   a  and  242   b  may respond by elongation in response to a force (e.g., tension) while the structure  246  does not elongate or is otherwise not displaced. Accordingly, the sections  248   a  and  248   c  can elongate to a greater degree as compared to the section  248   b , and the assembly  220  provides localized elongation and lockout properties. As shown, the structure  246  (corresponding to the section  248   b ) is centrally located in the assembly  220 . When the assembly  220  is integrated with a band for an HMD (not shown in  FIG.  9   ), the portions associated with the sections  248   a  and  248   c  may elongate to a greater degree around the sides of a user&#39;s head, while the portion associated with the section  248   b  remains relatively less flexible at the back of the user&#39;s head. 
     Referring to  FIG.  10   , an assembly  320  includes a structure  352  surrounded by a structure  354   a  and a structure  354   b . The structure  352  may include a relatively low tensile strength, while the structures  354   a  and  354   b  each includes a relatively high tensile strength. Also, the assembly  320  is divided into multiple sections, i.e., a section  358   a , a section  358   b , and a section  358   c . Based on the disparate tensile strengths, the assembly  320  can elongate differently in different regions. For example, the structure  352  may respond by elongation in response to a force (e.g., tension) while the structures  354   a  and  354   b  do not elongate or is otherwise not displaced. Accordingly, the section  358   b , being centrally located in the assembly  320 , is designed to elongate to a greater degree as compared to the sections  358   a  and  358   c . When the assembly  320  is integrated with a band for a device (not shown in  FIG.  10   ), the assembly  320  can be placed over a user&#39;s joint (e.g., knee, elbow) and the section  358   b  can elongate at a location corresponding to the joint, while the sections  358   a  and  358   c  can resist at least some elongation. 
     Assemblies (e.g., assembly  120 , assembly  220 , or assembly  320 ) shown and described herein can be integrated into other electronic devices. For example, referring to  FIG.  11 A , a wearable device  360  (e.g., smartwatch) includes a band  362  with an assembly  364 . The assembly  364  allow some elongation/expansion of the band  362  to fit around a user&#39;s wrist, while also limiting/resisting additional elongation of the band  362 . 
     Referring to  FIG.  11 B , a laptop computing device  470 , or simply laptop, includes a base portion  472   a  and a display housing  472   b  rotationally coupled to the base portion  472   a  by a hinge  474   a  and by a hinge  474   b . Each of the hinges  474   a  and  474   b  includes a respective assembly designed to control movement of the display housing  472   b . For example, the hinges  474   a  and  474   b  allow the display housing  472   b  to rotate in a direction of the arrow  476   a  such that the display housing  472   b  rotates over and covers the base portion  472   a . However, the hinges  474   a  and  474   b  may limit rotation of the display housing  472   b  in a direction of the arrow  476   b  such that the display housing  472   b  can travel only to the line  478 , with the line  478  representing part of a desired maximum angle of travel for the display housing  472   b.    
     Referring to  FIG.  11 C , an accessory device  580  (e.g., folio) for tablet computing devices is shown. The accessory device  580  includes a section  582   a  and a section  582   b . Further, the section  582   a  includes a segment  584   a  and a segment  584   b . The accessory device  580  further includes a hinge  586   a  and a hinge  586   b . Each of the hinges  586   a  and  586   b  includes a respective assembly designed to control movement of components of the accessory device  580 . For example, the hinges  586   a  and  586   b  allow rotational movement of the section  582   a  relative to the section  582   b  in either direction of the arrow  588   a  or the arrow  588   b , and may limit the section  582   a  to a maximum angle relative to the section  582   b . Similarly, the hinges  586   a  and  586   b  allow rotational movement of the segment  584   a  relative to the segment  584   b  in either direction of the arrow  590   a  or the arrow  590   b , and may limit the segment  584   a  to a maximum angle relative to the segment  584   b.    
     Referring to  FIG.  12   , an electronic system  600  with which one or more implementations of the subject technology may be implemented is shown. The electronic system  600  can be the head-mountable device  102 , as shown in  FIG.  1   . The electronic system  600  may include various types of computer readable media and interfaces for various other types of computer readable media. The electronic system  600  includes a bus  608  that places in communication a permanent storage device  602 , a system memory  604  (and/or buffer), an output device interface  606 , a read-only memory (ROM)  610 , one or more processing unit(s)  612 , an input device interface  614 , and one or more network interfaces  616 , or subsets and variations thereof. 
     The bus  608  collectively represents all system, peripheral, and chipset buses that communicatively connect the numerous internal devices of the electronic system  600 . In one or more implementations, the bus  608  communicatively connects the one or more processing unit(s)  612  with the ROM  610 , the system memory  604 , and the permanent storage device  602 . From these various memory units, the one or more processing unit(s)  612  retrieves instructions to execute and data to process in order to execute the processes of the subject disclosure. The one or more processing unit(s)  612  can be a single processor or a multi-core processor in different implementations. 
     The ROM  610  stores static data and instructions that are needed by the one or more processing unit(s)  612  and other modules of the electronic system  600 . The permanent storage device  602 , on the other hand, may be a read-and-write memory device. The permanent storage device  602  may be a non-volatile memory unit that stores instructions and data even when the electronic system  600  is off. In one or more implementations, a mass-storage device (such as a magnetic or optical disk and its corresponding disk drive) may be used as the permanent storage device  602 . 
     In one or more implementations, a removable storage device (such as a floppy disk, flash drive, and its corresponding disk drive) may be used as the permanent storage device  602 . Like the permanent storage device  602 , the system memory  604  may be a read-and-write memory device. However, unlike the permanent storage device  602 , the system memory  604  may be a volatile read-and-write memory, such as random access memory. The system memory  604  may store any of the instructions and data that one or more processing unit(s)  612  may need at runtime. In one or more implementations, the processes of the subject disclosure are stored in the system memory  604 , the permanent storage device  602 , and/or the ROM  610  (which are each implemented as a non-transitory computer-readable medium). From these various memory units, the one or more processing unit(s)  612  retrieves instructions to execute and data to process in order to execute the processes of one or more implementations. 
     The bus  608  also connects to the input device interface  614  and the output device interface  606 . The input device interface  614  enables a user to communicate information and select commands to the electronic system  600 . Input devices that may be used with the input device interface  614  may include, for example, alphanumeric keyboards and pointing devices (also called “cursor control devices”). The output device interface  606  may enable, for example, the display of images generated by electronic system  600 . Output devices that may be used with the output device interface  606  may include, for example, printers and display devices, such as a liquid crystal display (LCD), a light emitting diode (LED) display, an organic light emitting diode (OLED) display, a flexible display, a flat panel display, a solid state display, a projector, or any other device for outputting information. One or more implementations may include devices that function as both input and output devices, such as a touchscreen. In these implementations, feedback provided to the user can be any form of sensory feedback, such as visual feedback, auditory feedback, or tactile feedback; and input from the user can be received in any form, including acoustic, speech, or tactile input. 
     Finally, as shown in  FIG.  12   , the bus  608  also couples the electronic system  600  to one or more networks and/or to one or more network nodes through the one or more network interfaces  616 . In this manner, the electronic system  600  can be a part of a network of computers (such as a LAN, a wide area network (“WAN”)), or an Intranet, or a network of networks, such as the Internet. Any or all components of the electronic system  600  can be used in conjunction with the subject disclosure. 
     Various examples of aspects of the disclosure are described below as clauses for convenience. These are provided as examples, and do not limit the subject technology. 
     Clause A: A band for a head-mountable device includes: an outer cover that includes an internal chamber; and an assembly located in the internal chamber. The assembly includes: a first structure comprising a first tensile strength; a second structure comprising a second tensile strength different from the first tensile strength; and a third structure comprising a third tensile strength different from the first tensile strength and different the second tensile strength. 
     Clause B: A band for a head-mountable device includes: a first structure, a second structure, and a third structure, wherein in response to an applied force that i) elongates the first structure and the second structure and ii) pulls the third structure, the third structure counters the applied force and prevents further elongation of the first structure and the second structure. 
     Clause C: A head-mountable device includes: a frame that carries a display; and a band coupled with the frame. The band includes: an outer cover that includes an internal chamber; and an assembly located in the internal chamber. The assembly includes: an elastomer structure including a first tensile strength; a polymer structure including a second tensile strength greater than the first tensile strength; and a metal structure including a third tensile strength greater than the first tensile strength and greater than the second tensile strength. 
     One or more of the above clauses can include one or more of the features described below. It is noted that any of the following clauses may be combined in any combination with each other, and placed into a respective independent clause, e.g., clause A, B, or C. 
     Clause 1: wherein the assembly limits elongation of the outer cover while the third structure is under tension. 
     Clause 2: wherein: in response to the tension, the first structure is elongated from a first length to a second length, and in response to the first structure elongating to the second length, the second structure elongates. 
     Clause 3: wherein: the third structure is positioned at a first angle relative to the first structure, in response to the tension, the third structure is positioned at a second angle relative to the first structure, the second angle being less than the first angle, and the third structure prevents further elongation of the first structure and the second structure. 
     Clause 4: wherein: the second tensile strength is greater than the first tensile strength, and the third tensile strength is greater than the second tensile strength. 
     Clause 5: wherein the third structure is coaxial with respect to the first structure. 
     Clause 6: wherein the third structure is coaxial with respect to the first structure. 
     Clause 7: wherein: the first structure includes elastomer, the second structure includes a polymer, and the third structure includes a metal. 
     Clause 8: wherein the second structure comprises a braided polymer. 
     Clause 9: wherein the first structure is surrounded by the second structure and the third structure. 
     Clause 10: wherein the first structure is surrounded by the second structure and the third structure. 
     Clause 11: wherein: prior to the applied force, the third structure is positioned at a first angle relative to the first structure, and in response to the applied force, the third structure is positioned at a second angle relative to the first structure, wherein the second angle is less than the first angle. 
     Clause 12: further including an outer cover that includes a first end and a second end opposite the first end, wherein the third structure is coupled to the first end and the second end. 
     Clause 13: wherein the third structure includes a metal wire. 
     Clause 14: wherein the polymer structure includes a braided polymer. 
     Clause 15: wherein the elastomer structure and the metal structure are located within the braided polymer. 
     Clause 16: wherein the elastomer structure is coaxial with respect to the braided polymer. 
     Clause 17: wherein the metal structure, under tension, prevents elongation of the outer cover. 
     It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users. 
     As used herein, the phrase “at least one of” preceding a series of items, with the term “and” or “or” to separate any of the items, modifies the list as a whole, rather than each member of the list (i.e., each item). The phrase “at least one of” does not require selection of at least one of each item listed; rather, the phrase allows a meaning that includes at least one of any one of the items, and/or at least one of any combination of the items, and/or at least one of each of the items. By way of example, the phrases “at least one of A, B, and C” or “at least one of A, B, or C” each refer to only A, only B, or only C; any combination of A, B, and C; and/or at least one of each of A, B, and C. 
     The predicate words “configured to”, “operable to”, and “programmed to” do not imply any particular tangible or intangible modification of a subject, but, rather, are intended to be used interchangeably. In one or more implementations, a processor configured to monitor and control an operation or a component may also mean the processor being programmed to monitor and control the operation or the processor being operable to monitor and control the operation. Likewise, a processor configured to execute code can be construed as a processor programmed to execute code or operable to execute code. 
     Phrases such as an aspect, the aspect, another aspect, some aspects, one or more aspects, an implementation, the implementation, another implementation, some implementations, one or more implementations, an embodiment, the embodiment, another embodiment, some embodiments, one or more embodiments, a configuration, the configuration, another configuration, some configurations, one or more configurations, the subject technology, the disclosure, the present disclosure, other variations thereof and alike are for convenience and do not imply that a disclosure relating to such phrase(s) is essential to the subject technology or that such disclosure applies to all configurations of the subject technology. A disclosure relating to such phrase(s) may apply to all configurations, or one or more configurations. A disclosure relating to such phrase(s) may provide one or more examples. A phrase such as an aspect or some aspects may refer to one or more aspects and vice versa, and this applies similarly to other foregoing phrases. 
     The word “exemplary” is used herein to mean “serving as an example, instance, or illustration”. Any embodiment described herein as “exemplary” or as an “example” is not necessarily to be construed as preferred or advantageous over other embodiments. Furthermore, to the extent that the term “include”, “have”, or the like is used in the description or the claims, such term is intended to be inclusive in a manner similar to the term “comprise” as “comprise” is interpreted when employed as a transitional word in a claim. 
     All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is explicitly recited in the claims. No claim element is to be construed under the provisions of 35 U.S.C. § 112, sixth paragraph, unless the element is expressly recited using the phrase “means for” or, in the case of a method claim, the element is recited using the phrase “step for”. 
     The previous description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown herein, but are to be accorded the full scope consistent with the language claims, wherein reference to an element in the singular is not intended to mean “one and only one” unless specifically so stated, but rather “one or more”. Unless specifically stated otherwise, the term “some” refers to one or more. Pronouns in the masculine (e.g., his) include the feminine and neuter gender (e.g., her and its) and vice versa. Headings and subheadings, if any, are used for convenience only and do not limit the subject disclosure.

Metadata:
Filing Date: 20230724
Publication Date: 20240702
Grant Date: 20240702
Priority Date: 20220922
Inventors: LEITH, WILLIAM
BARAVIAN, Charlotte M.
ZHAO, Le
Assignee: APPLE INC
CPC Classifications: [{"code": "A44C5/0053", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2205/3021", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2205/2075", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2201/1096", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B1/005", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B27/0176", "inventive": true, "first": false, "tree": "[]"}, {"code": "D10B2101/20", "inventive": false, "first": false, "tree": "[]"}, {"code": "D02G3/32", "inventive": true, "first": true, "tree": "[]"}, {"code": "D07B2205/2075", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2401/2045", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2201/2091", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2801/62", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2205/3021", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2201/1096", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B1/025", "inventive": true, "first": true, "tree": "[]"}, {"code": "D07B2801/62", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2401/2045", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2205/3021", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2205/2075", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2201/2091", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B2201/1096", "inventive": false, "first": false, "tree": "[]"}, {"code": "D07B1/025", "inventive": true, "first": true, "tree": "[]"}]
Family ID: 91668508