Tethered fastener and method of assembling same

Abstract

A captive fastener is provided that can be attached to a panel along a fastener axis. The captive fastener includes a fastener having a head portion and a shaft extending from the head portion along the fastener axis. The captive fastener also includes a knob having a proximal portion engaged to the head portion of the fastener and a ring portion extending radially about the fastener axis and the shaft of the fastener. A sleeve is associated with the knob, the sleeve defining an opening extending along the fastener axis and receiving the shaft of the fastener. The sleeve has a proximal portion configured to prevent the knob from separating from the sleeve along the fastener axis and a distal portion configured to be engaged to the panel. A spring is positioned to bias the knob or the fastener proximally relative to the sleeve and inhibit tilting of the knob or the fastener relative to the fastener axis. The proximal portion of the sleeve has been positioned in association with the knob in an insertion direction along the fastener axis, and the head portion of the fastener has been inserted into the knob in the insertion direction for engagement to the knob. The engagement between the proximal portion of the knob and the head portion of the fastener is configured to resist axial movement of the knob relative to the fastener along the fastener axis, rotational movement of the knob relative to the fastener about the fastener axis, and pivotal movement of the knob relative to the fastener axis.

Description

[0001] Related applications

[0002] This application claims priority to U.S. Provisional Patent Application No. 63 / 007,618, filed April 9, 2020, entitled “CAPTIVE FASTENER AND METHOD OF ASSEMBLING THE SAME”, the entire disclosure of which is incorporated herein by reference for all purposes. Background Technology

[0003] This invention relates to a type of tethered fastener typically used to attach a first panel to a second panel, frame, or other surface when it is desired to hold the fastener in place without loosening the hardware article. The tethered fastener is installed such that it remains attached to a panel even when the fastener disengages from the other panel or surface.

[0004] For example, tethered fasteners have been disclosed in U.S. Patent Nos. 5,382,124, 5,851,095, and 6,280,131, the disclosures of which are incorporated herein by reference. While the tethered fasteners disclosed in these patents represent improvements over existing fasteners, there is still a need for tethered fasteners with further improvements in at least one of performance, ease of assembly, reduced manufacturing costs, and / or functionality. Summary of the Invention

[0005] According to a preferred principle of the fastener provided by the present invention, a tethering fastener is provided that can be attached to a panel along the fastener axis. The tethering fastener includes a fastener having a head portion located at a proximal end of the fastener and an axis extending from the head portion along the fastener axis to a distal portion of the fastener. The tethering fastener also includes a knob formed independently of and assembled to the fastener, the knob having a proximal portion and an annular portion, the proximal portion being engaged with the head portion of the fastener, and the annular portion extending radially about the fastener axis and the fastener axis and extending distally from the head portion of the fastener to the distal portion of the knob.

[0006] A ferrule is associated with a knob and defines an opening that extends along the fastener axis and receives the shaft of the fastener. The ferrule has a proximal portion configured to prevent the knob from disengaging from the ferrule along the fastener axis, and a distal portion configured to engage with a panel. A spring is positioned to proximally bias the knob or fastener relative to the ferrule and to inhibit tilting of the knob or fastener relative to the fastener axis. The proximal portion of the ferrule is positioned to associate with the knob along the fastener axis in the insertion direction, and the head portion of the fastener is inserted into the knob in the insertion direction for engagement with the knob.

[0007] The engagement between the proximal portion of the knob and the head portion of the fastener is configured to resist axial movement of the knob relative to the fastener along the fastener axis, rotational movement of the knob relative to the fastener about the fastener axis, and pivotal movement of the knob relative to the fastener axis.

[0008] According to a first aspect of the invention, a snap-in assembly can be formed, for example, in which the proximal portion of the knob is mechanically engaged to the head portion of a fastener. The head portion of the fastener has a proximal facing surface facing the proximal end of the fastener, a distal facing surface facing the distal portion of the fastener, and a transverse surface extending transversely to the proximal and distal facing surfaces of the head portion of the fastener. The knob has a proximal facing surface facing the proximal end of the knob, a distal facing surface facing the distal end of the knob, and a transverse surface extending transversely to the proximal and distal facing surfaces of the knob.

[0009] At least one of the proximal and distal surfaces of the knob is radially movable relative to the fastener axis between an engaged position and an extended position. In the engaged position, the proximal surface of the knob engages the distal surface of the head portion of the fastener, and the distal surface of the knob engages the proximal surface of the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis. In the extended position, at least one of the proximal or distal surfaces of the knob disengages from the head portion of the fastener, thereby allowing the head portion of the fastener to move relative to the knob along the fastener axis. The lateral surface of the head portion of the fastener abuts against the lateral surface of the knob, thereby restricting the rotational movement of the knob about the fastener axis relative to the fastener.

[0010] In a first embodiment of this first aspect of the invention, the knob includes a leg that defines a distal facing surface or a proximal facing surface of the knob. The leg is radially outwardly movable to move the distal facing surface or the proximal facing surface of the knob from an engaged position to an extended position, thereby allowing a head portion of a fastener to be inserted into the knob, and to move the distal facing surface or the proximal facing surface of the knob from the extended position to the engaged position, thereby resisting the head portion of the fastener from being removed from the knob.

[0011] In a second embodiment of the first aspect of the invention, the knob includes an inner part and an outer part fixed to the inner part, the inner part of the knob defining at least one of a distal side facing surface or a proximal side facing surface of the knob, and the outer part of the knob defining a radially outward facing surface positioned for gripping the knob.

[0012] In a third embodiment of the first aspect of the invention, the knob includes an inner wall defining an annular groove sized to receive a head portion of a fastener, and the inner wall defining a distal side-facing surface and a proximal side-facing surface of the knob, thereby preventing the head portion of the fastener from retracting from the knob when the head portion of the fastener is inserted into the annular groove defined in the inner wall of the knob.

[0013] In a fourth embodiment of this first aspect of the invention, the head portion of the fastener defines an annular groove providing a proximal and distal facet of the head portion, and the knob includes an inner wall having an inwardly extending protrusion providing a proximal and distal facet of the knob. The inwardly extending protrusion of the knob is positioned to extend into the annular groove of the head portion of the fastener, thereby allowing the head portion of the fastener to be pressed into the inner wall of the knob and resisting the head portion of the fastener from being withdrawn from the knob.

[0014] According to a second aspect of the invention, a heat stake assembly can be formed, for example, in which the proximal portion of the knob is modified to engage with the head portion of a fastener. The head portion of the fastener has a proximal facing surface facing the proximal end of the fastener, a distal facing surface facing the distal portion of the fastener, and a transverse surface extending transversely to the proximal and distal facing surfaces of the head portion of the fastener. The knob has an engagement surface and a transverse surface extending transversely to the engagement surface of the knob.

[0015] The engagement surface of the knob can deform from an extended position and a deformed position. In the extended position, the engagement surface of the knob disengages from the head portion of the fastener, thereby allowing movement of the head portion of the fastener relative to the knob along the fastener axis. In the deformed position, radially inward from the extended position, the engagement surface of the knob engages the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis. The lateral surface of the head portion of the fastener abuts against the lateral surface of the knob, thereby restricting rotation of the knob about the fastener axis relative to the fastener.

[0016] In a fifth embodiment of the second aspect of the invention, the knob includes legs defining an engagement surface. The legs of the knob are radially inwardly deformable relative to the fastener axis to move the engagement surface of the knob from an extended position to a deformed position, thereby resisting the head portion of the fastener from disengaging from the knob.

[0017] In a sixth embodiment of this aspect of the invention, the knob includes a proximal annular edge portion defining an engagement surface. The proximal annular edge portion of the knob is radially inwardly deformable to deform the engagement surface from an extended position to a deformed position, thereby resisting the head portion of the fastener from disengaging from the knob.

[0018] In a seventh embodiment according to this aspect of the invention, the knob includes a proximal part and a distal part. The proximal part defines an engagement surface of the knob, and the distal part defines a lateral surface of the knob. The proximal part of the knob is thermally bonded to the distal part of the knob, thereby resisting separation of the proximal part of the knob from the distal part of the knob and the head portion of the fastener from the knob.

[0019] According to another aspect of the invention, such as a snap-fit ​​assembly, a method is provided for assembling a tethered fastener by mechanically engaging a proximal portion of a knob to a head portion of a fastener. The method includes: moving at least one of a proximal facing surface of the knob and a distal facing surface of the knob radially outward relative to a fastener axis to an extended position, in which at least one of the proximal facing surface of the knob or the distal facing surface of the knob is disengaged from the head portion of the fastener; inserting the head portion of the fastener into the proximal portion of the knob; and returning at least one of the proximal facing surface of the knob and the distal facing surface of the knob radially inward relative to a fastener axis from the extended position to an engaged position, such that the proximal facing surface of the knob engages the distal facing surface of the head portion of the fastener, and causing the knob to... The distal face of the fastener engages the proximal face of the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis; the transverse surface of the head portion of the fastener abuts against the transverse surface of the knob, thereby restricting the rotational movement of the knob about the fastener axis relative to the fastener; a spring is positioned to proximally bias the knob or fastener and suppress tilting of the knob or fastener relative to the fastener axis; and a ferrule is associated with the knob such that an opening defined in the ferrule extends along the fastener axis and receives the shaft of the fastener, and the proximal portion of the ferrule prevents the knob from separating from the ferrule along the fastener axis.

[0020] In a first embodiment of the method, the movement step includes moving a leg of the distal side of the knob or the proximal side of the knob radially outward to an extended position, thereby allowing the head portion of the fastener to be inserted into the knob, and the return step includes moving the leg from the extended position back to the engaged position, thereby resisting the head portion of the fastener from being removed from the knob.

[0021] In a second embodiment, the method includes mechanically attaching an external part of the knob to an internal part of the knob or to the head portion of a fastener, thereby preventing the external part of the knob from separating from the internal part of the knob along the fastener axis.

[0022] In a third embodiment of the method, the insertion step includes pressing the head portion of the fastener into an annular groove defined in the inner wall of the knob.

[0023] In a fourth embodiment of the method, the insertion step includes extending an inwardly extending protrusion of the knob into an annular groove in the head portion of the fastener, thereby allowing the head portion of the fastener to be pressed into the inner wall of the knob and resisting the head portion of the fastener from being removed from the knob.

[0024] According to another aspect of the invention, for example, a thermoplastic assembly can be formed, a method for assembling a tethered fastener by deforming the proximal portion of a knob to engage with the head portion of a fastener. The method includes: inserting a head portion of a fastener into a proximal portion of a knob; deforming an engagement surface of the knob radially inward relative to the fastener axis from an extended position to a deformed position, in the extended position where the engagement surface of the knob disengages from the head portion of the fastener, and in the deformed position where the engagement surface of the knob engages the head portion of the fastener such that a proximal facing surface of the knob engages a distal facing surface of the head portion of the fastener, and the engagement surface of the knob engages a proximal facing surface of the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis; abutting a lateral surface of the head portion of the fastener against a lateral surface of the knob, thereby restricting rotational movement of the knob about the fastener axis relative to the fastener; positioning a spring to proximally bias the knob or fastener and suppress tilting of the knob or fastener relative to the fastener axis; and associating a ferrule with the knob such that an opening defined in the ferrule extends along the fastener axis and receives the shaft of the fastener, and the proximal portion of the ferrule prevents the knob from separating from the ferrule along the fastener axis.

[0025] According to a fifth embodiment, the method includes abutting the distal side of the mating surface against the proximal side of the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis.

[0026] According to the sixth embodiment, the deformation step of the method includes radially inwardly deforming a proximal annular edge portion of the knob defining the engagement surface, so that the engagement surface moves from an extended position to a deformed position, thereby resisting the head portion of the fastener from disengaging from the knob.

[0027] According to the seventh embodiment, the method further includes thermally bonding the proximal part of the knob to the distal part of the knob, thereby preventing the proximal part of the knob from separating from the distal part of the knob and the head portion of the fastener from retracting from the knob. Attached Figure Description

[0028] Figure 1A This is a side view of the tethered fastener in an extended configuration according to a first embodiment of the present invention.

[0029] Figure 1B yes Figure 1A The tethered fastener shown is a side view in a compressed configuration.

[0030] Figure 1C yes Figure 1A The top view of the tethered fastener shown.

[0031] Figure 2A yes Figure 1AThe tethering fastener shown is obtained by Figure 1C The cross-sectional side view obtained by line 2A-2A in the diagram.

[0032] Figure 2B yes Figure 1A The image shows a bottom view of the tethered fastener.

[0033] Figure 3 yes Figure 1A The diagram shown is an exploded view of the tethered fastener.

[0034] Figure 4A yes Figure 1A A perspective view of the knob component of the tethering fastener.

[0035] Figure 4B yes Figure 1A The diagram shows a perspective view of the fastener components of the tethered fastener.

[0036] Figure 5A yes Figure 1A The diagram shown is an exploded view of the tethered fastener.

[0037] Figure 5B yes Figure 1A The shown is a side view of the tethered fastener in an unfastened state.

[0038] Figure 5C yes Figure 1A The shown is a side view of the tethered fastener in the tightened state.

[0039] Figure 6A yes Figure 1A A perspective view of the knob component of the tethering fastener.

[0040] Figure 6B yes Figure 1A The knob component of the tethered fastener shown is via Figure 6C The cross-sectional side view obtained from line 6B-6B in the diagram.

[0041] Figure 6C yes Figure 1A A top view of the knob component of the tethering fastener shown.

[0042] Figure 6D yes Figure 1A The side view of the knob component of the tethering fastener shown.

[0043] Figure 7A yes Figure 1A The diagram shows a top view of the fastener components of the tethered fastener.

[0044] Figure 7B yes Figure 1A The diagram shows a perspective view of the fastener components of the tethered fastener.

[0045] Figure 7C yes Figure 1A The fastener components of the tethered fastener shown are via Figure 7A The cross-sectional side view obtained from line 7C-7C in the diagram.

[0046] Figure 7D yes Figure 1A Another perspective view of the fastener component of the tethered fastener shown.

[0047] Figure 8A yes Figure 1A The side view of the spring component of the tethering fastener shown.

[0048] Figure 8B yes Figure 1A End view of the spring component of the tethering fastener shown.

[0049] Figure 8C yes Figure 1A A perspective view of the spring component of the tethering fastener.

[0050] Figure 9A yes Figure 1A The top view of the retaining fastener sleeve component shown.

[0051] Figure 9B yes Figure 1A The side view of the ferrule component of the tethering fastener is shown.

[0052] Figure 9C yes Figure 1A A perspective view of the retaining fastener sleeve component shown.

[0053] Figure 9D yes Figure 1A A cross-sectional side view of the ferrule component of the tethering fastener shown.

[0054] Figure 10A yes Figure 1A An exploded view of a variant of the tethered fastener shown.

[0055] Figure 10B yes Figure 10A The variation of the tethered fastener shown is through Figure 10C The cross-sectional side view obtained from line 10B-10B in the diagram.

[0056] Figure 10C yes Figure 10A A top view of a variant of the tethered fastener shown.

[0057] Figure 11A yes Figure 1A The shown is a cross-sectional side view of a variant of the ferrule component of the tethering fastener before assembly.

[0058] Figure 11B yes Figure 1A The shown is a cross-sectional side view of a variant of the ferrule component of the tethering fastener after assembly.

[0059] Figure 12A yes Figure 1A The side view of the tethered fastener shown illustrates its rotational movement.

[0060] Figure 12B yes Figure 1A The side view of the tethered fastener shown illustrates axial movement in the distal direction.

[0061] Figure 12C yes Figure 1A The side view of the tethered fastener shown illustrates axial movement in the proximal direction.

[0062] Figure 12D yes Figure 1A The side view of the tethered fastener shown illustrates the pivoting motion.

[0063] Figure 13 yes Figure 1A A perspective view of another variation of the tethered fastener shown.

[0064] Figure 14 This is a perspective view of a tethered fastener according to a second embodiment of the present invention.

[0065] Figures 15 to 18B yes Figure 14 The diagram shows a view including the components and variations of the tethered fastener.

[0066] Figure 19A and Figure 19B This is a perspective view of a tethered fastener according to a third embodiment of the present invention.

[0067] Figures 20A to 23B yes Figure 19A and Figure 19B The diagram shows a view including the components and variations of the tethered fastener.

[0068] Figure 24A and Figure 24B These are top views and cross-sectional side views of a tethered fastener according to a fourth embodiment of the present invention.

[0069] Figures 25A to 36D yes Figure 24A and Figure 24B The diagram shows a view including the components and variations of the tethered fastener.

[0070] Figures 37A to 37CThese are side and top views of a tethered fastener according to a fifth embodiment of the present invention.

[0071] Figures 38A to 43D yes Figures 37A to 37C The diagram shows a view including the components and variations of the tethered fastener.

[0072] Figure 44A and Figure 44B These are top views of the tethered fastener according to the sixth embodiment of the present invention before and after deformation.

[0073] Figures 45 to 50E yes Figure 44A and Figure 44B The diagram shows a view including the components and variations of the tethered fastener.

[0074] Figures 51A to 51C These are top views, side views, and perspective views of a tethered fastener according to a seventh embodiment of the present invention.

[0075] Figures 52A to 57D yes Figure 51A The diagram shows a view including the components and variations of the tethered fastener. Detailed Implementation

[0076] Although the invention has been described and illustrated herein with reference to specific embodiments, it is not intended to be limited to the details shown. Rather, various modifications in detail may be made within the scope of the claims and their equivalents, and without departing from the invention.

[0077] Furthermore, in various embodiments of the invention, the same reference numerals are intended to denote the same features or components. Additionally, indicators such as "A" are intended to indicate variations of the relevant components or features.

[0078] General reference Figures 1A to 57DThe selected embodiments of the tethering fasteners used for illustration are tethering fasteners 100, 200, 300, 400, 500, 600, and 700, which can be attached to a panel (not shown) along the fastener axis FA. The tethering fasteners 100, 200, 300, 400, 500, 600, and 700 include fasteners 102, 202, 302, 402, 502, 602, and 702, which have head portions 104, 204, 304, 406 at their proximal ends 106, 206, 306, 406, 506, 606, and 706, respectively. 04, 504, 604, 704, and shafts 108, 208, 308, 408, 508, 608, 708 extending from the head portions 104, 204, 304, 404, 504, 604, 704 along the fastener axis FA to the distal portions 110, 210, 310, 410, 510, 610, 710 of the fasteners 102, 202, 302, 402, 502, 602, 702.

[0079] Although the fastener selected for illustration has a distal portion with a threaded fastener arrangement, the fastener can be provided with any form of engagement feature. For example, depending on the user's preference for the captive fastener, a quarter-turn, bayonet, or other fastener arrangement may be used instead of a threaded shaft. Therefore, according to the invention, a captive screw may be provided, but other fastener types are also contemplated.

[0080] Knobs 112, 212, 312, 412, 512, 612, and 712 are formed independently of fasteners 102, 202, 302, 402, 502, 602, and 702, and are assembled to fasteners 102, 202, 302, 402, 502, 602, and 702. Knobs 112, 212, 312, 412, 512, 612, and 712 have proximal portions 114, 214, 314, 414, 514, 614, and 714 and annular portions 116, 216, 316, 416, 516, 616, and 716, respectively. The proximal portions are engaged with the head portions 104, 204, 304, 404, 504, 604, and 704 of fasteners 102, 202, 302, 402, 502, 602, and 702. The annular portions surround the fastener axis FA and fasteners 102, 202, 202, 302, 402, 502, 602, and 702. The shafts 108, 208, 308, 408, 508, 608, and 708 of fasteners 102, 202, 302, 402, 502, 602, and 702 extend radially from the head portions 104, 204, 304, 404, 504, 604, and 704 of fasteners 102, 202, 302, 402, 502, 602, and 702 to the distal portions 114, 214, 314, 414, 514, 614, and 714 of knobs 112, 212, 312, 412, 512, 612, and 712.

[0081] Sleeves 120, 220, 320, 420, 520, 620, and 720 are associated with knobs 112, 212, 312, 412, 512, 612, and 712. Sleeves 120, 220, 320, 420, 520, 620, and 720 define openings 122, 222, 322, 422, 522, 622, and 722, which extend along the fastener axis FA and receive the shafts 108, 208, 308, 408, 508, 608, and 708 of the fasteners 102, 202, 302, 402, 502, 602, and 702. Sleeves 120, 220, 320, 420, 520, 620, 720 have proximal portions 124, 224, 324, 424, 524, 624, 724 and distal portions 126, 226, 326, 426, 526, 626, 726, the proximal portions being configured to prevent knobs 112, 212, 312, 412, 512, 612, 712 from separating from sleeves 120, 220, 320, 420, 520, 620, 720 along the fastener axis FA, the distal portions being configured to engage with a panel (not shown).

[0082] Springs 128, 228, 328, 428, 528, 628, and 728 are positioned to bias knobs 112, 212, 312, 412, 512, 612, and 712 or fasteners 102, 202, 302, 402, 502, 602, and 702 near the collet 120, 220, 320, 420, 502, 602, and 702, and to inhibit tilting of knobs 112, 212, 312, 412, 512, 612, and 712 or fasteners 102, 202, 302, 402, 502, 602, and 702 relative to the fastener axis FA. Although springs are preferably included in each embodiment, they are not always shown in the drawings. Those skilled in the art will understand the positioning of the springs in the various embodiments.

[0083] The proximal portions 124, 224, 324, 424, 524, 624, and 724 of the sleeves 120, 220, 320, 420, 520, 620, and 720 are positioned to associate with knobs 112, 212, 312, 412, 512, 612, and 712 along the fastener axis FA in the insertion direction ID. Similarly, the head portions 104, 204, 304, 404, 504, 604, and 704 of the fasteners 102, 202, 302, 402, 502, 602, and 702 are inserted into knobs 112, 212, 312, 412, 512, 612, and 712 in the insertion direction ID to engage with knobs 112, 212, 312, 412, 512, 612, and 712.

[0084] Although the embodiments selected for illustration in the accompanying drawings include various combinations of specific springs, ferrules, knobs, or fasteners, these components can be "mixed and matched" to suit specific preferences, applications, or manufacturing methods. Therefore, a wide variety of knob, fastener, spring, and ferrule configurations can be selected and assembled in unlimited combinations.

[0085] In one embodiment chosen for illustration, the tethering fastener can be assembled manually or via an automated process, wherein the components of the tethering fastener are brought together along a common axis (such as fastener axis FA) for assembly. In this way, for ease of assembly and efficiency, process steps can be aligned along the common axis. Furthermore, the force required to assemble the components can be applied along the common axis, allowing the components to be pressed or otherwise engaged or coupled by pushing one component against another. For example, referring to a first embodiment, the proximal portion 124 of the ferrule 120 is positioned to be associated with the knob 112 along the fastener axis FA. Similarly, the head portion 104 of the fastener 102 is inserted into the knob 112 along the fastener axis FA to engage with the knob 112. In the same manner, all remaining components (including springs) can be brought together along the same fastener axis FA. Depending on the preference of the tethering fastener manufacturer, the fastener axis FA can be oriented vertically or horizontally, or at any angle favorable to assembly.

[0086] In another embodiment selected for illustration, the tethered fastener can be assembled manually or by an automated process, wherein the components of the tethered fastener are brought together for assembly in a common insertion direction ID. In this way, for ease of assembly and efficiency, process steps can be performed in or from the common insertion direction. Furthermore, the force required to assemble the components can be applied in the common insertion direction, allowing components to be pressed or otherwise engaged or coupled by pushing one component against another from the common direction. For example, referring to the first embodiment, the proximal portion 124 of the ferrule 120 is positioned to be associated with the knob 112 in the insertion direction ID. Similarly, the head portion 104 of the fastener 102 is inserted into the knob 112 in the same insertion direction ID to engage with the knob 112. Depending on the assembly and embodiment of the tethered fastener, the insertion direction ID can be a proximal or distal direction, allowing all process steps to be performed from either the proximal or distal direction.

[0087] The joints 130, 230, 330, 430, 530, 604, and 730 between the proximal portions of knobs 112, 212, 312, 412, 512, 612, and 712 and the head portions 104, 204, 304, 404, 504, 604, and 704 of fasteners 102, 202, 302, 402, 502, 602, and 702 are configured to resist the knobs 112, 212, 312, 412, 512, 612, and 712 from moving along the fastener. The axial movement A of the fastener axis FA relative to fasteners 102, 202, 302, 402, 502, 602, 702; the rotational movement R of knobs 112, 212, 312, 412, 512, 612, 712 about the fastener axis FA relative to fasteners 102, 202, 302, 402, 502, 702; and the pivoting movement P of knobs 112, 212, 312, 412, 512, 612, 712 relative to the fastener axis FA.

[0088] In the mooring fasteners 100, 200, 300, 400, 500, 600, and 700, fasteners 102, 202, 302, 402, 502, 602, and 702 are metallic, and knobs 112, 212, 312, 412, 512, 612, and 712 are non-metallic. However, both fasteners and knobs can be metallic or non-metallic. Moreover, depending on the application of the mooring fastener, the end-user's preference, or the manufacturer's preference, the metallic or non-metallic material can be selected from a wide variety of acceptable materials. Examples of suitable materials are described in U.S. Patent Nos. 5,382,124, 5,851,095, and 6,280,131, the disclosures of which are incorporated herein by reference.

[0089] The proximal portions 124, 224, 324, 424, 524, 624, and 724 of the sleeves 120, 220, 320, 420, 520, 620, and 720, and the head portions 104, 204, 304, 404, 504, 604, and 704 of the fasteners 102, 202, 302, 402, 502, 602, and 702 are inserted into the knobs 112, 212, 312, 412, 512, 612, and 712 in the insertion direction ID. The insertion direction ID is the direction from which the proximal portions 114, 214, 314, 414, 514, 614, and 714 of the knobs 112, 212, 312, 412, 512, 612, and 712 are located distal to the fastener axis FA.

[0090] Alternatively, the proximal portions 124, 224, 324, 424, 524, 624, 724 of the sleeves 120, 220, 320, 420, 520, 620, 720 and the head portions 104, 204, 304, 404, 504, 604, 704 of the fasteners 102, 202, 302, 402, 502, 602, 702 can be inserted into the knobs 112, 212, 312, 412, 512, 612, 712 in the insertion direction ID, where the insertion direction ID is the proximal direction of the distal portions 118, 218, 318, 418, 518, 618, 718 of the knobs 112, 212, 312, 412, 512, 612, 712 along the fastener axis FA.

[0091] The proximal portions 124, 224, 324, 424, 524, 624, and 724 of the ferrules 120, 220, 320, 420, 520, 620, and 720 include radial extensions 132, 232, 332, 432, 532, 632, and 732 that extend radially outward relative to the fastener axis FA for engaging with the knobs 112, 212, 312, 412, 512, 612, and 712 to prevent the knobs 112, 212, 312, 412, 512, 612, and 712 from the ferrules 120, 220, 320, 420, 520, 620, and 720.

[0092] The radial extensions 132, 232, 332, 432, 532, 632, and 732 of the proximal portions 124, 224, 324, 424, 524, 624, and 724 of the ferrules 120, 220, 320, 420, 520, 620, and 720, respectively, are selectively deformed from an extended position to an engaged position. In this extended position, the proximal portions 124, 224, 324, 424, 524, 624, and 724 of the ferrules 120, 220, 320, 420, 520, 620, and 720 can be inserted into the knobs 112, 212, 312, 412, 512, 612, and 712, thereby allowing the proximal portions 124, 224, and 324 of the ferrules 120, 220, 320, 420, 520, and 620 to be inserted into the knobs 112, 212, 312, 412, 512, 612, and 712. 424, 524, 624, and 724 move along the fastener axis FA in the insertion direction ID into the knobs 112, 212, 312, 412, 512, 612, and 712. In this engaged position, the proximal portions 124, 224, 324, 424, 524, 624, and 724 of the sleeves 120, 220, 320, 420, 520, 620, and 720 cannot be removed from the knobs 112, 212, 312, 412, 512, 612, and 712 in the direction opposite to the insertion direction ID, thereby preventing the knobs 112, 212, 312, 412, 512, 612, and 712 from the sleeves 120, 220, 320, 420, 520, 620, and 720 along the fastener axis FA.

[0093] Embodiments of the invention include a fastener in which the proximal portion of the knob (e.g., assembled by snap-fit) is mechanically engaged or coupled to the head of the fastener. This mechanical engagement can optionally be provided by snap-fit ​​or press-fit engagement. In such embodiments, insert forming, thermal bonding, and / or crimping processes can be eliminated. For example, such embodiments can be easily assembled by joining separate, pre-formed components. This enables mass production of components that can then be assembled to each other in individual operations. Thus, the engagement steps for the engagement between the knob and the fastener can be completed without permanently deforming the knob.

[0094] For illustrative purposes, please refer to the general guidelines. Figures 1A to 36DIn the illustrated embodiment, the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402 have: proximal side-facing surfaces 134, 334, 434 facing the proximal ends of fasteners 102, 202, 302, 402; distal side-facing surfaces 136, 236, 336, 436 facing the distal end portions 110, 210, 310, 410 of fasteners 102, 202, 302, 402; and transverse surfaces 138, 238, 338, 438 extending transversely to the proximal side-facing surfaces 134, 334, 434 and the distal side-facing surfaces 136, 236, 336, 436 of the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402.

[0095] The knobs 112, 212, 312, and 412 have: proximal side-facing surfaces 140, 240, 340, and 440 facing the proximal end of the knobs 112, 212, 312, and 412; distal side-facing surfaces 142, 242, 342, and 442 facing the distal end of the knobs 112, 212, 312, and 412; and transverse surfaces 144, 244, 344, and 444 extending transversely to the proximal side-facing surfaces 140, 240, 340, and 440 and the distal side-facing surfaces 142, 242, 342, and 442 of the knobs 112, 212, 312, and 412.

[0096] At least one of the proximal surfaces 140, 240, 340, 440 and the distal surfaces 142, 242, 342, 442 of knobs 112, 212, 312, 412 can move radially relative to the fastener axis FA between two positions: (1) Engagement position, in which the proximal surfaces of knobs 112, 212, 312, 412 engage surfaces 140, 240, 340, 440 with the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402, and the distal surfaces of knobs 112, 212, 312, 412 engage surfaces 142. 242, 342, 442 engage the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402 with proximal opposing surfaces 134, 334, 434, thereby restricting the movement of the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402 along the fastener axis FA relative to knobs 112, 212, 312, 412; and (2) Extended position, in which at least one of the proximal surfaces 140, 240, 340, 440 of knobs 112, 212, 312, 412 or the distal surfaces 142, 242, 342, 442 of knobs 112, 212, 312, 412 disengages from the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402, thereby allowing movement of the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402 relative to knobs 112, 212, 312, 412 along the fastener axis FA.

[0097] The lateral surfaces 138, 238, 338, and 438 of the head portions 104, 204, 304, and 404 of fasteners 102, 202, 302, and 402 abut against the lateral surfaces 144, 244, 344, and 444 of knobs 112, 212, 312, and 412, thereby restricting the rotational movement of knobs 112, 212, 312, and 412 about the fastener axis FA relative to fasteners 102, 202, 302, and 402.

[0098] In relation to the tethered fastener 100 Figures 1A to 13 In the first embodiment and its variations shown, the knob 112 includes movable portions (such as tabs or flexible regions) to define a distal opposing surface and / or a proximal opposing surface of the knob. In this embodiment, a leg 146 defines a distal opposing surface 142 or a proximal opposing surface 140 of the knob 112. The leg 146 of the knob 112 is radially outwardly movable to cause the distal opposing surface 142 or the proximal opposing surface 140 of the knob 112 to: (1) move from an engaged position to an extended position, thereby allowing the head portion 104 of the fastener 102 to be inserted into the knob 112; and (2) move from the extended position to an engaged position, thereby resisting the head portion 104 of the fastener 102 from retracting from the knob 112.

[0099] The knob 112 includes an inner wall 148 that defines a proximal surface 140 or a distal surface 142 of the knob 112, thereby restricting the movement of the head of the fastener 102 relative to the knob 112 along the fastener axis FA.

[0100] In the fastener 100, the leg 146 of the knob 112 defines the distal facing surface 142 of the knob 112, and the inner wall 148 of the knob 112 defines the proximal facing surface 140 of the knob 112. The distal facing surface 142 of the leg 146 of the knob 112 abuts against the proximal facing surface 134 of the head portion 104 of the fastener 102, and the proximal facing surface 140 of the inner wall 148 of the knob 112 abuts against the distal facing surface 136 of the head portion 104 of the fastener 102.

[0101] In the tethered fastener 100, the knob 112 includes two or more legs, for example, six legs in this embodiment, wherein at least one leg defines a lateral surface 144 of the knob 112. Adjacent legs are separated by gaps 150.

[0102] The lateral surface 138 of the head portion 104 of the fastener 102 extends into the gap 150 between adjacent legs, and the lateral surface 138 of the head portion 104 of the fastener 102 abuts against the lateral surface 144 of the leg 146 of the knob 112, thereby restricting the rotational movement of the knob 112 about the fastener axis FA relative to the fastener 102.

[0103] Knob 112 is configured to engage with the head portion 104 of fastener 102 via its leg 146 in an engaged position, thereby preventing the head portion 104 of fastener 102 from retracting from knob 112. For example, the head portion of the fastener is inserted into the knob by using an insertion force. For example, the leg, tab, or flexible segment may be temporarily deformed during fastener installation and then snapped back into position without permanent deformation. Once engaged, the fastener cannot be accidentally removed from the knob in the axial direction. Furthermore, once engaged, the fastener cannot be accidentally rotated about its axis relative to the knob.

[0104] The leg 146 of the knob 112 also defines a tapered ramp surface 152 that tapers from the radially outward portion of the leg 146 to the radially inward portion of the leg 146. The ramp surface 152 of the leg 146 of the knob 112 is positioned to facilitate radially outward movement of the leg 146 of the knob 112 during the insertion of the head portion 104 of the fastener 102 into the knob 112.

[0105] The ramp surface 152 of the leg 146 of the knob 112 faces the proximal end 154 of the knob 112. In this embodiment, the proximal portion 124 of the sleeve 120 and the head portion 104 of the fastener 102 are both inserted into the knob 112 in the insertion direction ID. In this case, the insertion direction ID is the direction distal from the proximal portion of the knob 112 along the fastener axis FA.

[0106] The knob 112 also includes an annular wall 156 that is radially outwardly positioned from and at least partially surrounds the leg 146 of the knob 112. The annular wall 156 defines a radially outwardly facing surface 158 that is positioned for gripping the knob 112.

[0107] Refer specifically to the accompanying drawings illustrating the first embodiment and its variations. Figure 1A This is a side view of the tethering fastener 102 in an extended configuration according to a first embodiment of the present invention, and Figure 1B yes Figure 1A The attached figures show a side view of the tethered fastener in a compressed configuration. These figures illustrate how the spring bias presses the ferrule into the knob. In the disengaged position, where the fastener is not engaged with the other panel, the tethered fastener will be in... Figure 1A In the extended position with an extension length EL. In the engagement position where the fastener is engaged to another panel, the tethered fastener will be in Figure 1B In the compression position with compression length CL. Figure 1C yes Figure 1A The top view of the tethered fastener shown.

[0108] Figure 2A yes Figure 1A A cross-sectional side view of the tethered fastener is shown. The engagement 130 is shown after the fastener and knob are snapped together. Figure 2B yes Figure 1A The image shows a bottom view of the tethered fastener.

[0109] Figure 3 yes Figure 1A An exploded view of the tethered fastener is shown. Figure 3 As shown, the fastener and knob are inserted in the distal direction, indicated by the insertion direction ID.

[0110] Figure 4A yes Figure 1A A perspective view of the knob component of the tethering fastener. Figure 4B yes Figure 1A The diagram shows a perspective view of the fastener components of the tethered fastener.

[0111] Figure 5A yes Figure 1A The diagram shown is an exploded view of the tethered fastener. Figure 5B yes Figure 1A The side view shown is of the tethered fastener in an unfastened state, which generally corresponds to the extended position described above. Figure 5C yes Figure 1A The side view of the tethered fastener shown is in a tightened state that generally corresponds to the compression position described above.

[0112] Figure 6A yes Figure 1A A perspective view of the knob component of the tethering fastener. Figure 6B yes Figure 1A A cross-sectional side view of the knob component of the tethering fastener shown. Figure 6C yes Figure 1A The diagram shows a top view of the knob component of the tethering fastener. Figure 6D yes Figure 1A The side view of the knob component of the tethering fastener shown.

[0113] Figure 7A yes Figure 1A The diagram shows a top view of the fastener components of the tethered fastener. Figure 7B yes Figure 1A The diagram shows a perspective view of the fastener components of the tethered fastener. Figure 7C yes Figure 1A A cross-sectional side view of the fastener component of the tethering fastener shown. Figure 7D yes Figure 1A Another perspective view of the fastener component of the tethered fastener shown.

[0114] Figure 8A yes Figure 1A The side view of the spring component of the tethering fastener shown. Figure 8B yes Figure 1A The image shows an end view of the spring component of the tethering fastener. Figure 8C yes Figure 1A A perspective view of the spring component of the tethering fastener.

[0115] Figure 9A yes Figure 1A The top view of the retaining fastener sleeve component shown. Figure 9B yes Figure 1A The side view of the ferrule component of the tethering fastener is shown. Figure 9C yes Figure 1A A perspective view of the retaining fastener's sleeve component is shown. Figure 9D yes Figure 1A The image shows a cross-sectional side view of the ferrule component of the tethered fastener. In this embodiment, the distal portion of the ferrule is configured for press-fitting into a panel (such as a sheet component that may be formed from sheet metal).

[0116] Figure 10A yes Figure 1A An exploded view of a variant of the tethered fastener shown. Figure 10B yes Figure 10A A cross-sectional side view of a variant of the tethered fastener shown. Figure 10C yes Figure 10AThe diagram shows a top view of a variant of the tethered fastener. In this variant, the ferrule 120A has a distal portion 126A configured for SMT (Surface Mount Technology) bonding to a printed circuit board or other substrate.

[0117] Figure 11A yes Figure 1A The shown is a cross-sectional side view of a variant of the ferrule component of the tethering fastener before assembly. Figure 11B yes Figure 1A The variation of the retaining fastener's ferrule component shown is in a cross-sectional side view after assembly. In this embodiment, the ferrule 120B can be inserted into the knob in the distal direction, the distal portion 126B as... Figure 11A The collapsed portion allows it to pass through the center of the knob. During insertion, the distal portion 126B can be accessed from... Figure 11A The collapsed position shown is deformed to Figure 11B The expanded position shown allows it to be positioned against the surface of the panel to which it is to be attached (e.g., via SMT). This deformation of the distal portion 126B can be achieved by applying a pressing force along the fastener axis FA in the insertion direction ID.

[0118] Figure 12A yes Figure 1A The side view of the tethered fastener shown illustrates its rotational movement. Figure 12B yes Figure 1A The side view of the tethered fastener shown illustrates axial movement in the distal direction. Figure 12C yes Figure 1A The side view of the tethered fastener shown illustrates axial movement in the proximal direction. Figure 12D yes Figure 1A The accompanying figures show a side view of the tethered fastener, illustrating its pivoting motion. These figures also show the quality and form of the engagement between the knob and the fastener.

[0119] Figure 13 yes Figure 1A A perspective view of another variation of the tethering fastener is shown. In this variation, the knob of the tethering fastener 100B is modified to remove the annular wall 156 of the knob 112. This allows the tethering fastener 100B to have a smaller diameter OD, if desired or preferred for a particular application. Additionally, knurling (not shown) or other surface features for gripping may optionally be provided on the outer surface of the knob or on the proximal or distal surfaces of the knob.

[0120] Involving tethered fastener 200 Figures 14 to 18BIn the second embodiment and its variations shown, the knob 212 includes an inner component 260 and an outer component 262 fixed to the inner component 260. The inner component 260 of the knob 212 defines at least one of a distal facing surface 242 or a proximal facing surface 240 of the knob 212, and the outer component 262 of the knob 212 defines a radially outward facing surface positioned for gripping the knob 212. Thus, the tethering fastener 200 differs from the tethering fastener 100 primarily in that it provides a two-piece knob.

[0121] The internal component 260 of the knob 212 includes a leg 246 that defines either the distal surface 242 or the proximal surface 240 of the knob 212. The leg 246 of the internal component 260 of the knob 212 is radially outwardly movable to cause the distal surface 242 or the proximal surface 240 of the knob 212 to move as follows: (1) from an engaged position to an extended position, thereby allowing the head portion 204 of the fastener 202 to be inserted into the knob 212; and (2) from the extended position to an engaged position, thereby resisting the removal of the head portion 204 of the fastener 202 from the knob 212.

[0122] The internal component 260 of the knob 212 includes an inner wall 248 that defines a proximal surface 240 or a distal surface 242 of the knob 212, thereby restricting the movement of the head portion of the fastener 202 relative to the knob 212 along the fastener axis FA.

[0123] The outer part 262 of the knob 212 has at least one facing surface, which is positioned to mechanically connect the outer part 262 of the knob 212 to the inner part 260 of the knob 212 or the head portion 204 of the fastener 202, thereby preventing the outer part 262 of the knob 212 from separating from the inner part 260 of the knob 212 along the fastener axis FA.

[0124] The facing surface of the outer part 262 of the knob 212 includes a distal facing surface 266, which is positioned to contact the proximal facing surface of the head portion 204 of the fastener 202.

[0125] The facing surface of the outer part 262 of the knob 212 also includes a proximal facing surface 264, which is positioned to contact the distal portion of the inner part 260 of the knob 212. Optionally, the distal portion may have a plurality of slots 231 (e.g., such as...). Figure 14 (As shown).

[0126] The facing surface 264 of the outer part 262 of the knob 212 can move as follows: (1) it can move radially outward from the engagement position of the distal portion of the inner part 260 of the knob 212 to the extended position, thereby allowing the inner part 260 of the knob 212 to be inserted into the outer part 262 of the knob 212; and (2) it can move from the extended position to the engagement position, thereby resisting the inner part 260 of the knob 212 from being withdrawn from the outer part 262 of the knob 212.

[0127] The knob 212 is configured to engage the inner part 260 of the knob 212 in the outer part 262 with the facing surface of the outer part 262 of the knob 212 in the engaged position, thereby preventing the inner part 260 of the knob 212 from retracting from the outer part 262 of the knob 212.

[0128] The outer part 262 of the knob 212 has a transverse surface 268 that is positioned to contact the inner part 260 of the knob 212 and / or the head portion 204 of the fastener 202, thereby preventing the outer part 262 of the knob 212 from rotating about the fastener axis FA relative to the inner part 260 of the knob 212.

[0129] Refer specifically to the accompanying drawings illustrating the first embodiment and its variations. Figure 14 This is a perspective view of a tethered fastener according to a second embodiment of the present invention. Figures 15 to 18B yes Figure 14 The diagram shows a view of the components and variations of the tethered fastener.

[0130] Involving tethered fastener 300 Figures 19A to 23B In the third embodiment and its variations shown, the knob 312 includes an inner wall 348 defining annular grooves 370, 370A, the annular grooves being sized to receive the head portion 304 of the fastener 302. The inner wall also defines a distal facing surface 342 and a proximal facing surface 340 of the knob 312, thereby preventing the head portion 304 of the fastener 302 from retracting from the knob 312 when inserted into the annular grooves 370, 370A defined in the inner wall 348 of the knob 312. Generally, the proximal facing surface 334 may alternatively extend radially outward or in a proximal direction (e.g., upward).

[0131] The annular grooves 370 and 370A defined in the inner wall 348 of the knob 312 are continuous grooves, such that at least one of the distal surface 342 and the proximal surface 340 of the knob 312 is a continuous surface.

[0132] The inner wall 348 of the knob 312 also defines tapered regions 372, 372A adjacent to annular grooves 370, 370A and tapering from a larger portion to a smaller portion. The larger portion is sized to accommodate the head portion 304 of the fastener 302, and the smaller portion is sized to resist the passage of the head portion 304 of the fastener 302, thereby allowing the head portion 304 of the fastener 302 to be pressed into the annular grooves 370, 370A defined in the inner wall 348 of the knob 312.

[0133] A smaller portion of the tapered region 372 of the inner wall 348 of the knob 312 defines a gap extending into the annular groove 370, thereby facilitating the pressing insertion of the head portion 304 of the fastener 302 into the annular groove 370 defined in the inner wall 348 of the knob 312.

[0134] The tapered regions 372, 372A defined in the inner wall 348 of the knob 312 are positioned adjacent to the proximal facing surface 340 defined by the annular grooves 370, 370A of the knob 312, thereby allowing the head portion 304 of the fastener 302 to be pressed into the annular grooves 370, 370A defined in the inner wall 348 of the knob 312 in the insertion direction ID. In this case, the insertion direction ID is the proximal direction from the distal portion of the knob 312 along the fastener axis FA.

[0135] The peripheral edge of the head portion 304 of the fastener 302 defines a transverse surface 338 of the head portion 304 of the fastener 302. When the head portion 304 of the fastener 302 is inserted into the annular grooves 370, 370A, the transverse surface 344 of the knob 312 is formed within the annular grooves 370, 370A defined in the inner wall 348 of the knob 312. For example, the knob may be formed of a non-metallic or metallic material that can be cold-flowed or deformed in response to the insertion of the fastener and the contour of the transverse surface of the fastener. In one embodiment, the transverse surface of the knob is formed after the fastener is assembled into the knob.

[0136] Refer specifically to the accompanying drawings illustrating the third embodiment and its variations. Figure 19A and Figure 19B This is a perspective view of a tethered fastener according to a third embodiment of the present invention. Figures 20A to 23B yes Figure 19A and Figure 19B The diagram shows a view including the components and variations of the tethered fastener. The insertion direction ID is as follows: Figure 20B The proximal direction is shown.

[0137] Involving tethered fastener 400 Figures 24A to 36CIn the fourth embodiment and its variations shown, the head portion 404 of the fastener 402 defines annular grooves 476, 476A, which provide a proximal facing surface 434 and a distal facing surface 436 of the head portion 404 of the fastener 402. The knob 412 has an inner wall 448 with an inwardly extending protrusion 478, which provides a proximal facing surface 440 and a distal facing surface 442 of the knob 412.

[0138] The inwardly extending protrusion 478 of the knob 412 is positioned to extend into the annular grooves 476, 476A of the head portion 404 of the fastener 402, thereby allowing the head portion 404 of the fastener 402 to be pressed into the inner wall 448 of the knob 412 and resisting the head portion 404 of the fastener 402 from being removed from the knob 412. The annular grooves 476, 476A defined in the head portion 404 of the fastener 402 are continuous grooves.

[0139] The head portion 404 of the fastener 402 further defines at least one axial groove 480, 480A, which provides a lateral surface 438 for the fastener 402. The knob 412 also includes an inwardly extending protrusion that provides a lateral surface 444 for the knob 412. The inwardly extending protrusion of the knob 412 is positioned to extend into the axial groove of the head portion 404 of the fastener 402, thereby restricting the rotational movement of the knob 412 about the fastener axis FA relative to the fastener 402.

[0140] Refer specifically to the accompanying drawings illustrating the fourth embodiment and its variations. Figure 24A and Figure 24B These are top views and cross-sectional side views of a tethered fastener according to a fourth embodiment of the present invention. Figures 25A to 36D yes Figure 24A and Figure 24B The diagram shows a view including the components and variations of the tethering fastener. The main difference between tethering fastener 400A and tethering fastener 400 is that the knob of tethering fastener 400A includes a single raised protrusion to provide a lateral surface for the knob. Furthermore, tethering fastener 400A includes a retainer 420A, which engages with the panel using a ring or washer 421A. Figure 31B , Figure 31C and Figure 31D The location of the tethering fastener 400A with the assembled ferrule 420A is shown.

[0141] In addition to tethered fasteners in which a knob mechanically engages or connects to the head portion of a fastener, embodiments of the invention also include tethered fasteners in which a knob (e.g., through thermoforming) is deformed to engage with the head portion of a fastener. In such embodiments, tethered fasteners can be assembled by connecting separate, pre-formed components (e.g., via mechanically engaged or connected parts). Furthermore, such embodiments allow for the formation of tethered fasteners using a process operating along a common fastener axis FA and components assembled along a common insertion direction ID.

[0142] For illustrative purposes, please refer to the general guidelines. Figures 37A to 57D In the embodiment shown, the proximal portions 514, 614, and 714 of the knobs 512, 612, and 712 are modified to engage with the head portions 504, 604, and 704 of the fasteners 502, 602, and 702. Specifically, the head portions 504, 604, and 704 of fasteners 502, 602, and 702 have: proximal opposing surfaces 534, 634, and 734 facing the proximal ends of fasteners 502, 602, and 702; distal opposing surfaces 536, 636, and 736 facing the distal portions 510, 610, and 710 of fasteners 502, 602, and 702; and transverse surfaces 538 and 638 extending transversely to the proximal opposing surfaces 534, 634, and 734 of the head portions 504, 604, and 704 of fasteners 504, 602, and 704 and the distal opposing surfaces 536, 636, and 736 of the head portions 504, 604, and 704 of fasteners 502, 602, and 702.

[0143] Knobs 512, 612, and 712 have mating surfaces and transverse surfaces 544 and 744 extending transversely to the mating surfaces of knobs 512, 612, and 712. The mating surfaces of knobs 512, 612, and 712 can be deformed from the following locations: (1) Extended position, in which the engagement surfaces of knobs 512, 612, 712 disengage from the head portions 504, 604, 704 of fasteners 502, 602, 702, thereby allowing movement of the head portions 504, 604, 704 of fasteners 502, 602, 702 relative to knobs 512, 612, 712 along the fastener axis FA, and (2) Deformation position, which is radially inward from the extension position, in which the engagement surfaces of knobs 512, 612, 712 engage the head portions 504, 604, 704 of fasteners 502, 602, 702, thereby restricting the movement of the head portions 504, 604, 704 of fasteners 502, 602, 702 relative to knobs 512, 612, 712 along the fastener axis FA.

[0144] The lateral surfaces 538 and 638 of the head portions 504, 604 and 704 of fasteners 502, 602 and 702 abut against the lateral surfaces 544 and 744 of knobs 512, 612 and 712, thereby restricting the rotation of knobs 512, 612 and 712 about the fastener axis FA relative to fasteners 502, 602 and 702.

[0145] Involving tethered fastener 500 Figures 37A to 43D In the fifth embodiment and its variations shown, the knob 512 includes an extension, tab, or protrusion of knob material, such as a leg 546, which defines an engagement surface (the radially inner facing surface of the pre-deformed leg 546). The leg 546 of the knob 512 can be deformed radially inward relative to the fastener axis FA to move the engagement surface of the knob 512 from an extended position to a deformed position, thereby resisting the head portion 504 of the fastener 502 from retracting from the knob 512.

[0146] Knob 512 includes an inner wall 548 that defines a proximal opposing surface 540. An engagement surface of the leg portion 546 of knob 512 provides a distal opposing surface of knob 512. The distal opposing surface of the engagement surface of knob 512 abuts against the proximal opposing surface 534 of the head portion 504 of fastener 502, and the proximal opposing surface 540 of the inner wall 548 of knob 512 abuts against the distal opposing surface 536 of the head portion 504 of fastener 502, thereby restricting movement of the head portion 504 of fastener 502 relative to knob 512 along the fastener axis FA.

[0147] The peripheral edge of the head portion 504 of the fastener 502 defines a lateral surface 538 of the head portion 504 of the fastener 502. The lateral surface 544 of the knob 512 is provided by a recess defined in the inner wall 548 of the knob 512. The lateral surface 538 of the head portion 504 of the fastener 502 extends into the recess defined in the inner wall 548 of the knob 512, and the lateral surface 538 of the head portion 504 of the fastener 502 abuts against the lateral surface 544 of the knob 512, thereby restricting the rotational movement of the knob 512 about the fastener axis FA relative to the fastener 502.

[0148] Refer specifically to the accompanying drawings illustrating the fifth embodiment and its variations. Figures 37A to 37C These are side and top views of a tethered fastener according to a fifth embodiment of the present invention. Figures 38A to 43D yes Figures 37A to 37C The diagram shows a view including the components and variations of the tethered fastener. Figure 38B In the middle, the mating surface 584 has not yet deformed to engage with the head portion of the fastener. Instead, it is upright and positioned to allow the fastener to be inserted into the knob in the distal direction. After deformation, as... Figure 38AAs shown, the mating surface 584 provides a mating portion 530 to prevent the fastener from being accidentally removed from the knob. Figure 41C and Figure 41D These are side views of the tethered fastener 500 before and after deformation, respectively, according to the fifth embodiment of the present invention. Furthermore, Figure 41B The knob before deformation is shown, although it is in a configuration where the knob extends from the sleeve. Specifically, in Figure 41C In the center, the topmost part of the knob's engagement surface can be seen extending upwards. However, in Figure 41D In this process, the mating surfaces have deformed downwards and inwards to engage the head portion of the fastener. Therefore, Figure 41C It is before the deformation assembly process, and Figure 41D This is after the deformation and assembly process is completed.

[0149] Figures 44A to 44A involve the tethering fastener 600. Figure 50E In the sixth embodiment and its variations shown, the knob 612 includes a proximal annular edge portion 686 defining an engagement surface. The proximal annular edge portion 686 of the knob 612 is radially inwardly deformable to deform the engagement surface from an extended position to a deformed position, thereby preventing the head portion 604 of the fastener 602 from retracting from the knob 612.

[0150] In Figure 44A, the proximal annular edge portion 686 is not yet deformed, thus allowing the fastener to be inserted into the knob from the proximal end and along the distal insertion direction ID. Figure 44B In the middle, the proximal annular edge portion 686 abuts against the proximal side of the head portion of the fastener to prevent the fastener from exiting the knob from the proximal end and along the distal insertion direction ID.

[0151] The knob 612 includes an inner wall 648 that defines a proximal facing surface 640. The mating surface of the proximal annular edge portion of the knob 612 abuts against the proximal facing surface 634 of the head portion 604 of the fastener 602, and the proximal facing surface 640 of the inner wall 648 of the knob 612 abuts against the distal facing surface 636 of the head of the fastener 602, thereby restricting movement of the head portion 604 of the fastener 602 relative to the knob 612 along the fastener axis FA.

[0152] The knob 612 has an inner wall 648 that defines a proximal facing surface 640. An engagement surface of the proximal annular edge portion 686 of the knob 612 provides a distal facing surface 642 for the knob 612. The distal facing surface 642 of the engagement surface abuts against the proximal facing surface 634 of the head portion 604 of the fastener 602, and the proximal facing surface 640 of the inner wall 648 of the knob 612 abuts against the distal facing surface of the head portion 604 of the fastener 602, thereby restricting movement of the head portion 604 of the fastener 602 relative to the knob 612 along the fastener axis FA.

[0153] The head portion 604 of fastener 602 has a proximal surface 634 providing a transverse surface 638, and the engagement surface of the proximal annular edge portion of knob 612 is deformed to provide a transverse surface of knob 612. When the engagement surface is deformed from its extended position to its deformed position, the transverse surface of knob 612 is formed on the engagement surface of knob 612, thereby restricting rotation of knob 612 about fastener axis FA relative to fastener 602.

[0154] Refer specifically to the accompanying drawings illustrating the sixth embodiment and its variations. Figure 44A and Figure 44B These are top views of the tethered fastener according to the sixth embodiment of the present invention before and after deformation. Figures 45 to 50E yes Figure 44A and Figure 44B The diagram shows a view including the components and variations of the tethered fastener. Figure 46B and Figure 46C As shown, the tethering fastener 600 can be configured with a press-fit ferrule or an SMT ferrule. Additionally, each of the tethering fastener embodiments shown in the figures can be configured with any type of ferrule. Therefore, the embodiments are not limited to the type of ferrule shown in the figures, and any type of ferrule can be used, including flared ferrules, SMT ferrules, press-fit ferrules, and other ferrule types.

[0155] Involving the tethered fastener 700 Figures 51A to 57D In the seventh embodiment and its variations shown, the knob 712 includes a proximal part 788 and a distal part 790. The proximal part 788 defines an engagement surface of the knob 712, and the distal part 790 defines a lateral surface 744 of the knob 712. The proximal part 788 of the knob 712 is thermally bonded to the distal part 790 of the knob 712, thereby preventing the proximal part 788 of the knob 712 from separating from the distal part 790 of the knob 712 and preventing the head portion 704 of the fastener 702 from retracting from the knob 712.

[0156] The proximal part of the knob 712 has an annular protrusion 792 that extends in a generally direction along or parallel to the fastener axis FA. The annular protrusion 792 deforms when the engagement surface of the proximal part 788 of the knob 712 deforms from the extended position to the deformed position.

[0157] As described above, the proximal component 788 of the knob 712 is thermally bonded to the distal component 790 of the knob 712. The thermal bonding process can include any bonding process, such as, for example, thermal bonding or fusion bonding or ultrasonic bonding or welding or acoustic welding or other forms of bonding metallic or non-metallic materials. For example, ultrasonic welding is suitable for bonding thermoplastic materials. In one example, a tool and / or mold can be moved along the fastener axis to contact the knob, thereby causing deformation or bonding of one or more knob components.

[0158] Additionally, for example, in conjunction with embodiments five, six, and seven, such a tool and / or mold can be moved along the fastener axis to contact the knob, thereby causing deformation or engagement of one or more knob components to engage the fastener within the knob. The tool or mold can be shaped to form the surface of the knob or to permanently move a portion of the knob to an engaged position.

[0159] The distal part 790 of the knob 712 has an inner wall 748 that defines a proximal opposing surface 740. An engagement surface of the proximal part of the knob 712 provides a distal opposing surface 742 for the knob 712. The distal opposing surface 742 of the engagement surface abuts against the proximal opposing surface 734 of the head portion 704 of the fastener 702, and the proximal opposing surface 740 of the inner wall 748 of the knob 712 abuts against the distal opposing surface 736 of the head portion 704 of the fastener 702, thereby restricting movement of the head portion 704 of the fastener 702 relative to the knob 712 along the fastener axis FA.

[0160] The peripheral edge of the head portion 704 of the fastener 702 defines a lateral surface of the head portion 704 of the fastener 702. The lateral surface 744 of the knob 712 is provided by a recess defined in the inner wall 748 of the knob 712. The lateral surface of the head portion 704 of the fastener 702 extends into the recess defined in the inner wall 748 of the knob 712, and the lateral surface of the head portion 704 of the fastener 702 abuts against the lateral surface 744 of the knob 712, thereby restricting the rotational movement of the knob 712 about the fastener axis FA relative to the fastener 702.

[0161] Refer specifically to the accompanying drawings illustrating the sixth embodiment and its variations. Figures 51A to 51C These are top views, side views, and perspective views of a tethered fastener according to a seventh embodiment of the present invention. Figures 52A to 57D yes Figure 51AThe diagram shows a view including the components and variations of the tethered fastener.

[0162] A method for assembling tethered fasteners by mechanically engaging the proximal portions 114, 214, 314, 414 of knobs 112, 212, 312, 412 to the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402.

[0163] The method includes moving at least one of the proximal surfaces 140, 240, 340, 440 and the distal surfaces 142, 242, 342, 442 of the knobs 112, 212, 312, 412 radially outward relative to the fastener axis FA to an extended position, in which at least one of the proximal surfaces 140, 240, 340, 440 or the distal surfaces 142, 242, 342, 442 of the knobs 112, 212, 312, 412 is disengaged from the head portions 104, 204, 304, 404 of the fasteners 102, 202, 302, 402.

[0164] The method also includes inserting the head portions 104, 204, 304, 404 of fasteners 102, 202, 302, 402 into the proximal portions 114, 214, 314, 414 of knobs 112, 212, 312, 412.

[0165] The method further includes causing at least one of the proximal facing surfaces 140, 240, 340, 440 of knobs 112, 212, 312, 412 and the distal facing surfaces 142, 242, 342, 442 of knobs 112, 212, 312, 412 to return radially inward from the (1) extending position to the (2) engaging position relative to the fastener axis FA, such that the proximal facing surfaces 140, 240, 340, 440 of knobs 112, 212, 312, 412 engage the head portions 104, 204, 304 of fasteners 102, 202, 302, 402. The distal surfaces 136, 236, 336, and 436 of the knobs 112, 212, 312, and 412 engage the proximal surfaces 134, 334, and 434 of the head portions 104, 204, 304, and 404 of the fasteners 102, 202, 302, and 402, thereby restricting the movement of the head portions 104, 204, 304, and 404 of the fasteners 102, 202, 302, and 402 relative to the knobs 112, 212, 312, and 412 along the fastener axis FA.

[0166] The method further includes abutting the lateral surfaces 138, 238, 338, 438 of the head portions 104, 204, 304, 404 of the fasteners 102, 202, 302, 402 against the lateral surfaces 144, 244, 344, 444 of the knobs 112, 212, 312, 412, thereby restricting the rotational movement of the knobs 112, 212, 312, 412 about the fastener axis FA relative to the fasteners 102, 202, 302, 402.

[0167] The method further includes positioning springs 128, 228, 328, 428 to bias knobs 112, 212, 312, 412 or fasteners 102, 202, 302, 402 in the proximal direction and suppressing tilting of knobs 112, 212, 312, 412 or fasteners 102, 202, 302, 402 relative to the fastener axis FA.

[0168] The method further includes associating sleeves 120, 220, 320, 420 with knobs 112, 212, 312, 412 such that an opening defined in sleeves 120, 220, 320, 420 extends along the fastener axis FA and receives the shaft of fasteners 102, 202, 302, 402, and such that proximal portions 124, 224, 324, 424 of sleeves 120, 220, 320, 420 prevent knobs 112, 212, 312, 412 from separating from sleeves 120, 220, 320, 420 along the fastener axis FA.

[0169] In a first embodiment of the method, the movement step includes moving a leg 146 of the distal surface 142 or the proximal surface 140 of the knob 112 radially outward to an extended position, thereby allowing the head portion 104 of the fastener 102 to be inserted into the knob 112. Furthermore, the return step includes returning the leg 146 from the extended position to an engaged position, thereby preventing the head portion 104 of the fastener 102 from retracting from the knob 112.

[0170] The return step includes engaging the head portion 104 of the fastener 102 in the engaged position by means of the leg 146 of the knob 112, thereby preventing the head portion 104 of the fastener 102 from retracting from the knob 112.

[0171] In a second embodiment of the method, the method further includes mechanically connecting the outer part 262 of the knob 212 to the inner part 260 of the knob 212 or the head portion 204 of the fastener 202, thereby preventing the outer part 262 of the knob 212 from separating from the inner part 260 of the knob 212 along the fastener axis FA.

[0172] The method also includes moving the facing surface 264 of the outer part 262 of the knob 212 radially outward to an extended position, thereby allowing the inner part 260 of the knob 212 to be inserted into the outer part 262 of the knob 212, and moving from the extended position to an engaged position, thereby resisting the inner part 260 of the knob 212 from the outer part 262 of the knob 212 from the outer part 262 of the knob 212.

[0173] In a third embodiment of the method, the insertion step includes pressing the head portion 304 of the fastener 302 into an annular groove 370, 370A defined in the inner wall 348 of the knob 312.

[0174] The pressing insertion step involves inserting the head portion 304 of the fastener 302 into the tapered regions 372, 372A adjacent to the annular grooves 370, 370A in the inner wall 348 of the knob 312, thereby allowing the head portion 304 of the fastener 302 to be pressed into the annular grooves 370, 370A defined in the inner wall 348 of the knob 312.

[0175] In a fourth embodiment of the method, the insertion step includes extending an inwardly extending protrusion 478 of the knob 412 into an annular groove 476, 476A of the head portion 404 of the fastener 402, thereby allowing the head portion 404 of the fastener 402 to be pressed into the inner wall 448 of the knob 412 and resisting the head portion 404 of the fastener 402 from being withdrawn from the knob 412.

[0176] This embodiment of the method further includes extending an inwardly extending protrusion of the knob 412 into an axial groove 480 of the head portion 404 of the fastener 402, thereby restricting the rotational movement of the knob 412 about the fastener axis FA relative to the fastener 402.

[0177] A method for assembling a tethered fastener is also provided, for example, by heat-fusion assembly, in which the proximal portions 514, 614, 714 of knobs 512, 612, 712 are deformed to engage with the head portions 504, 604, 704 of fasteners 502, 602, 702.

[0178] The method includes inserting the head portions 504, 604, and 704 of fasteners 502, 602, and 702 into the proximal portions 514, 614, and 714 of knobs 512, 612, and 712.

[0179] The method involves deforming the mating surfaces of knobs 512, 612, and 712 radially inward relative to the fastener axis FA from an extended position to a deformed position: (1) In this extended position, the mating surfaces of knobs 512, 612, and 712 are disengaged from the head portions 504, 604, and 704 of fasteners 502, 602, and 702. (2) In this deformed position, the mating surfaces of knobs 512, 612, and 712 engage the head portions 504, 604, and 704 of fasteners 502, 602, and 702, such that the proximal surfaces 540, 640, and 740 of knobs 512, 612, and 712 engage the distal surfaces 536, 636, and 736 of the head portions 504, 604, and 704 of fasteners 502, 602, and 702, and the mating surfaces of knobs 512, 612, and 712 engage the proximal surfaces 534, 634, and 734 of the head portions 504, 604, and 704 of fasteners 502, 602, and 702, thereby restricting the movement of the head portions 504, 604, and 704 of fasteners 502, 602, and 702 relative to knobs 512, 612, and 712 along the fastener axis FA.

[0180] The method further includes abutting the lateral surfaces 538, 638 of the head portions 504, 604, 704 of the fasteners 502, 602, 702 against the lateral surfaces 544, 744 of the knobs 512, 612, 712, thereby restricting the rotational movement of the knobs 512, 612, 712 about the fastener axis FA relative to the fasteners 502, 602, 702.

[0181] The method of this embodiment further includes positioning the spring to bias the knobs 512, 612, 712 or the fasteners 502, 602, 702 on the near side and suppressing the tilting of the knobs 512, 612, 712 or the fasteners 502, 602, 702 relative to the fastener axis FA.

[0182] The method further includes associating sleeves 520, 620, 720 with knobs 512, 612, 712 such that openings defined in sleeves 520, 620, 720 extend along the fastener axis FA and receive the shafts of fasteners 502, 602, 702, and that proximal portions 524, 624, 724 of sleeves 520, 620, 720 prevent knobs 512, 612, 712 from separating from sleeves 520, 624, 720 along the fastener axis FA.

[0183] According to a fifth embodiment, the method includes abutting the distal side of the mating surface against the proximal side of the head portion 504 of the fastener 502 against the proximal side of the head portion 504 of the fastener 502, thereby restricting the movement of the head portion 504 of the fastener 502 relative to the knob 512 along the fastener axis FA.

[0184] The method of this embodiment further includes abutting the proximal side surface 540 of the inner wall 548 of the knob 512 against the distal side surface 536 of the head portion 504 of the fastener 502, thereby restricting the movement of the head portion 504 of the fastener 502 relative to the knob 512 along the fastener axis FA.

[0185] According to a sixth embodiment of the method, the deformation step includes radially inwardly deforming a proximal annular edge portion of the defining engagement surface of the knob 612 to move the engagement surface from an extended position to a deformed position, thereby resisting the head portion 604 of the fastener 602 from disengaging from the knob 612.

[0186] The method may further include abutting the proximal annular edge portion 686 of the knob 612 against the proximal surface 634 of the head portion 604 of the fastener 602, and abutting the proximal surface 640 of the inner wall 648 of the knob 612 against the distal surface 636 of the head of the fastener 602, thereby restricting the movement of the head portion 604 of the fastener 602 relative to the knob 612 along the fastener axis FA.

[0187] According to a seventh embodiment of the method, the method includes thermally bonding a proximal portion 788 of a knob 712 to a distal portion 790 of a knob 712, thereby preventing the proximal portion of the knob 712 from separating from the distal portion of the knob 712 and the head portion 704 of a fastener 702 from retracting from the knob 712.

[0188] In this embodiment, the method further includes deforming the annular protrusion of the proximal component of the knob 712 when the engagement surface of the proximal component of the knob 712 moves from the extended position to the deformed position.

[0189] Typically, a method is provided for assembling a retaining fastener along an insertion direction and a fastener axis. The method includes: providing a fastener, a knob, a spring, and a retaining sleeve as separate components; positioning a proximal portion of the retaining sleeve extending within the knob in the insertion direction and along the fastener axis; inserting the spring into the knob in the insertion direction and along the fastener axis; inserting a head portion of the fastener into the knob in the insertion direction and along the fastener axis for engagement with the knob; and engaging a proximal portion of the knob with the head portion of the fastener to resist axial movement of the knob relative to the fastener along the fastener axis, rotational movement of the knob relative to the fastener about the fastener axis, and pivoting movement of the knob relative to the fastener axis; wherein the insertion direction of the retaining sleeve, the insertion direction of the spring, and the insertion direction of the head portion of the fastener are all the same insertion direction.

[0190] The insertion direction can be distal. Furthermore, the method may include deforming the distal portion of the ferrule between a retracted state and an extended state, wherein in the retracted state, the distal portion of the ferrule is sized to extend through the knob, and in the extended state, the distal portion of the ferrule is enlarged and configured for engagement with the panel. Additionally, the engagement step may include engaging the proximal portion of the knob with the head portion of the fastener. Furthermore, the engagement step can be performed without permanently deforming the knob.

[0191] Advantages associated with embodiments of the invention include one or more of the following benefits: lower manufacturing or assembly costs, reduced tilting of the fastener or screw head relative to the fastener axis, the ability to use injection-molded knob components, availability of snap-fit ​​assembly processes, availability of thermoforming assembly processes, and / or the ability to use existing stamped ferrule configurations. Other advantages will be appreciated by those skilled in the art of fasteners.

[0192] While preferred embodiments of the invention have been shown and described herein, it will be understood that these embodiments are provided by way of example only. Many variations, modifications, and substitutions will occur to those skilled in the art without departing from the spirit of the invention. Therefore, the appended claims are intended to cover all such variations that fall within the spirit and scope of the invention.

Claims

1. A tethered fastener capable of being attached to a panel along a fastener axis, the tethered fastener comprising: A fastener having a head portion at a proximal end of the fastener and an axis extending from the head portion along the fastener axis to a distal end portion of the fastener. A knob, formed independently of and assembled to the fastener, the knob having a proximal portion and an annular portion, the proximal portion being engaged to a head portion of the fastener, the annular portion extending radially about the axis of the fastener and the axis of the fastener and extending distally from the head portion of the fastener to the distal portion of the knob. A retainer associated with the knob, the retainer defining an opening extending along the axis of the fastener and receiving the shaft of the fastener, the retainer having a proximal portion and a distal portion, the proximal portion being configured to prevent the knob from disengaging from the retainer along the axis of the fastener, and the distal portion being configured to engage with the panel; as well as A spring is positioned to bias the knob or the fastener proximal to the ferrule and to inhibit tilting of the knob or the fastener relative to the axis of the fastener. The proximal portion of the ferrule has been positioned to be associated with the knob in the insertion direction along the fastener axis; The head portion of the fastener has been inserted into the knob in the insertion direction for engagement with the knob; and The engagement between the proximal portion of the knob and the head portion of the fastener is configured to resist axial movement of the knob relative to the fastener along the fastener axis, rotational movement of the knob relative to the fastener about the fastener axis, and pivoting movement of the knob relative to the fastener axis. The proximal portion of the ferrule includes a radially extending portion that extends radially outward relative to the fastener axis to engage the knob, thereby preventing the knob from disengaging from the ferrule. The radial extension of the proximal portion of the ferrule deforms from the extended position to the engaged position. In the extended position, the proximal portion of the ferrule can be inserted into the knob, thereby allowing the proximal portion of the ferrule to move into the knob along the fastener axis in the insertion direction. In the engaged position, the proximal portion of the ferrule cannot be removed from the knob in a direction opposite to the insertion direction, thereby preventing the knob from separating from the ferrule along the fastener axis.

2. The tethering fastener according to claim 1, wherein the fastener is metallic.

3. The tethering fastener according to claim 1, wherein the knob is non-metallic.

4. The fastener according to claim 1, wherein the proximal portion of the ferrule and the head portion of the fastener are inserted into the knob in the insertion direction, the insertion direction being the distal direction from the proximal portion of the knob along the axis of the fastener.

5. The fastener according to claim 1, wherein the proximal portion of the ferrule and the head portion of the fastener are inserted into the knob in the insertion direction, the insertion direction being the proximal direction from the distal portion of the knob along the axis of the fastener.

6. The tethering fastener according to claim 1, wherein the proximal portion of the knob is mechanically engaged to the head portion of the fastener, wherein: The head portion of the fastener has a proximal side-facing surface facing the proximal end of the fastener, a distal side-facing surface facing the distal end portion of the fastener, and a transverse surface extending transversely to the proximal side-facing surface and the distal side-facing surface of the head portion of the fastener. The knob has a proximal side-facing surface facing the proximal end of the knob, a distal side-facing surface facing the distal end of the knob, and a transverse surface extending transversely to the proximal side-facing surface and the distal side-facing surface of the knob. At least one of the proximal and distal surfaces of the knob is capable of radial movement relative to the fastener axis between an engaged position and an extended position. In the engaged position, the proximal surface of the knob engages the distal surface of the head portion of the fastener, and the distal surface of the knob engages the proximal surface of the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis. In the extended position, at least one of the proximal surface of the knob or the distal surface of the knob disengages from the head portion of the fastener, thereby allowing the head portion of the fastener to move relative to the knob along the fastener axis. and The lateral surface of the head portion of the fastener abuts against the lateral surface of the knob, thereby restricting the rotational movement of the knob about the fastener axis relative to the fastener.

7. The tethering fastener of claim 6, wherein the knob includes a leg defining a distal facing surface or a proximal facing surface of the knob, the leg being radially outwardly movable to move the distal facing surface or the proximal facing surface of the knob from the engaged position to the extended position, thereby allowing insertion of a head portion of the fastener into the knob and moving the distal facing surface or the proximal facing surface of the knob from the extended position to the engaged position, thereby resisting withdrawal of the head portion of the fastener from the knob.

8. The fastener of claim 7, wherein the knob includes an inner wall defining a proximal surface or a distal surface of the knob, thereby restricting movement of the head of the fastener relative to the knob along the fastener axis.

9. The tethering fastener of claim 8, wherein the leg of the knob defines a distal facing surface of the knob, the inner wall of the knob defines a proximal facing surface of the knob, the distal facing surface of the leg of the knob abuts against the proximal facing surface of the head portion of the fastener, and the proximal facing surface of the inner wall of the knob abuts against the distal facing surface of the head of the fastener.

10. The tethering fastener of claim 7, wherein the knob includes two or more legs, wherein at least one leg defines a lateral surface of the knob.

11. The tethering fastener according to claim 10, wherein the legs are separated by a gap.

12. The tethering fastener of claim 11, wherein the lateral surface of the head portion of the fastener extends into the gap, and the lateral surface of the head portion of the fastener abuts against the lateral surface of the leg portion of the knob, thereby restricting the rotational movement of the knob about the fastener axis relative to the fastener.

13. The fastener of claim 7, wherein the knob is configured to engage the head portion of the fastener in the engaged position by means of the knob's leg, thereby preventing the head portion of the fastener from retracting from the knob.

14. The tethering fastener of claim 13, wherein the leg of the knob further defines a ramp surface that tapers from a radially outward portion of the leg to a radially inward portion of the leg, the ramp surface of the leg of the knob being positioned to facilitate radially outward movement of the leg of the knob during insertion of the head portion of the fastener into the knob.

15. The fastener of claim 14, wherein the ramp surface of the leg of the knob faces the proximal end of the knob, the proximal portion of the ferrule and the head portion of the fastener are inserted into the knob in the insertion direction, the insertion direction being the distal direction from the proximal portion of the knob along the axis of the fastener.

16. The tethering fastener of claim 7, wherein the knob further comprises an annular wall positioned radially outward from the leg of the knob and at least partially surrounding the leg of the knob, the annular wall defining a radially outward facing surface positioned for gripping the knob.

17. The tethering fastener of claim 6, wherein the knob includes an inner part and an outer part fixed to the inner part, the inner part of the knob defining at least one of a distal side surface or a proximal side surface of the knob, and the outer part of the knob defining a radially outward facing surface positioned for gripping the knob.

18. The tethering fastener of claim 17, wherein the internal component of the knob includes legs defining a distal facing surface or a proximal facing surface of the knob, the legs of the internal component of the knob being radially outwardly movable to move the distal facing surface or the proximal facing surface of the knob from the engaged position to the extended position, thereby allowing insertion of the head portion of the fastener into the knob, and moving the distal facing surface or the proximal facing surface of the knob from the extended position to the engaged position, thereby resisting withdrawal of the head portion of the fastener from the knob.

19. The tethering fastener of claim 17, wherein the internal component of the knob includes an inner wall defining a proximal surface or a distal surface of the knob, thereby restricting movement of the head of the fastener relative to the knob along the fastener axis.

20. The tethering fastener of claim 17, wherein the outer part of the knob has a facing surface positioned for mechanical connection between the outer part of the knob and the inner part of the knob or with the head portion of the fastener, thereby preventing the outer part of the knob from separating from the inner part of the knob along the axis of the fastener.

21. The tethering fastener of claim 20, wherein the facing surface of the outer part of the knob is a distal facing surface, the distal facing surface being positioned to contact the proximal facing surface of the head portion of the fastener.

22. The tethering fastener of claim 20, wherein the facing surface of the outer part of the knob is a proximal-side facing surface, the proximal-side facing surface being positioned to contact the distal portion of the inner part of the knob.

23. The tethering fastener of claim 22, wherein the facing surface of the outer part of the knob is radially outwardly movable from an engagement position for contacting the distal portion of the inner part of the knob to an extended position, thereby allowing the inner part of the knob to be inserted into the outer part of the knob, and is movable from the extended position to the engagement position, thereby preventing the inner part of the knob from being withdrawn from the outer part of the knob.

24. The tethering fastener of claim 23, wherein the knob is configured to engage, in the engaged position, the inner part of the knob in the outer part of the knob with the facing surface of the outer part of the knob, thereby preventing the inner part of the knob from retracting from the outer part of the knob.

25. The tethering fastener of claim 17, wherein the outer part of the knob has a transverse surface positioned to contact the inner part of the knob or the head portion of the fastener, thereby preventing rotation of the outer part of the knob about the fastener axis relative to the inner part of the knob.

26. The tethering fastener of claim 6, wherein the knob includes an inner wall defining an annular groove sized to receive a head portion of the fastener and defining a distal facing surface and a proximal facing surface of the knob, thereby resisting the head portion of the fastener from retraction from the knob when the head portion of the fastener is inserted into the annular groove defined in the inner wall of the knob.

27. The tethering fastener of claim 26, wherein the annular groove defined in the inner wall of the knob is a continuous groove, such that at least one of the distal surface of the knob and the proximal surface of the knob is a continuous surface.

28. The tethering fastener of claim 26, wherein the inner wall of the knob further defines a tapering region adjacent to the annular groove and tapering from a larger portion to a smaller portion, the larger portion being sized to receive the head portion of the fastener and the smaller portion being sized to resist the passage of the head portion of the fastener, thereby allowing the head portion of the fastener to be pressed into the annular groove defined in the inner wall of the knob.

29. The fastener of claim 28, wherein a smaller portion of the tapering region of the inner wall of the knob defines a gap extending into the annular groove, thereby facilitating pressing the head portion of the fastener into the annular groove defined in the inner wall of the knob.

30. The tethering fastener of claim 28, wherein a tapered region defined in the inner wall of the knob is positioned adjacent to the proximal facing surface defined by the annular groove of the knob, thereby allowing the head portion of the fastener to be pressed into the annular groove defined in the inner wall of the knob in the insertion direction, the insertion direction being proximal to the distal portion of the knob along the fastener axis.

31. The fastener of claim 26, wherein the peripheral edge of the head portion of the fastener defines a transverse surface of the head portion of the fastener, and when the head portion of the fastener is inserted into the annular groove, the transverse surface of the knob is formed within the annular groove defined in the inner wall of the knob.

32. The fastener of claim 6, wherein the head portion of the fastener defines an annular groove providing a proximal and distal facet of the head portion of the fastener, the knob including an inner wall having an inwardly extending protrusion providing a proximal and distal facet of the knob, the inwardly extending protrusion of the knob being positioned to extend into the annular groove of the head portion of the fastener, thereby allowing the head portion of the fastener to be pressed into the inner wall of the knob and resisting the head portion of the fastener from being withdrawn from the knob.

33. The tethering fastener according to claim 32, wherein the annular groove defined in the head portion of the fastener is a continuous groove.

34. The fastener of claim 32, wherein the head portion of the fastener further defines at least one axial groove providing a transverse surface of the fastener, and the knob further includes an inwardly extending protrusion providing a transverse surface of the knob, the inwardly extending protrusion of the knob being positioned to extend into the axial groove of the head portion of the fastener, thereby restricting rotational movement of the knob about the fastener axis relative to the fastener.

35. The tethering fastener of claim 1, wherein the proximal portion of the knob is deformed to engage with the head portion of the fastener, wherein: The head portion of the fastener has a proximal side-facing surface facing the proximal end of the fastener, a distal side-facing surface facing the distal end portion of the fastener, and a transverse surface extending transversely to the proximal side-facing surface and the distal side-facing surface of the head portion of the fastener. The knob has a mating surface and a transverse surface extending transversely to the mating surface of the knob, the mating surface of the knob being deformable from an extended position and a deformable position. In the extended position, the engagement surface of the knob disengages from the head portion of the fastener, thereby allowing the head portion of the fastener to move relative to the knob along the fastener axis. The deformed position extends radially inward from the extended position, in which the engagement surface of the knob engages the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis. The lateral surface of the head portion of the fastener abuts against the lateral surface of the knob, thereby restricting the rotation of the knob about the fastener axis relative to the fastener.

36. The tethering fastener of claim 35, wherein the knob includes a leg defining the engagement surface, the leg of the knob being radially inwardly deformable relative to the axis of the fastener to move the engagement surface of the knob from the extended position to the deformed position, thereby resisting the head portion of the fastener from disengaging from the knob.

37. The tethering fastener of claim 36, wherein the knob includes an inner wall defining the proximal opposing surface, an engagement surface of the knob leg providing a distal opposing surface of the knob, the distal opposing surface of the engagement surface of the knob abutting the proximal opposing surface of the head portion of the fastener, and the proximal opposing surface of the inner wall of the knob abutting the distal opposing surface of the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

38. The fastener of claim 36, wherein a peripheral edge of the head portion of the fastener defines a lateral surface of the head portion of the fastener, the lateral surface of the knob is provided by a recess defined in the inner wall of the knob, the lateral surface of the head portion of the fastener extending into the recess defined in the inner wall of the knob, and the lateral surface of the head portion of the fastener abuts against the lateral surface of the knob, thereby restricting rotational movement of the knob about the fastener axis relative to the fastener.

39. The tethering fastener of claim 35, wherein the knob includes a proximal annular edge portion defining the engagement surface, the proximal annular edge portion of the knob being radially inwardly deformable to deform the engagement surface from the extended position to the deformed position, thereby resisting the head portion of the fastener from disengaging from the knob.

40. The tethering fastener of claim 39, wherein the knob includes an inner wall defining the proximal facing surface, an engagement surface of a proximal annular edge portion of the knob abuts against the proximal facing surface of the head portion of the fastener, and the proximal facing surface of the inner wall of the knob abuts against the distal facing surface of the head of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

41. The tethering fastener of claim 39, wherein the knob has an inner wall defining the proximal facing surface, an engagement surface of the proximal annular edge portion of the knob provides a distal facing surface of the knob, the distal facing surface of the engagement surface abuts against the proximal facing surface of the head portion of the fastener, and the proximal facing surface of the inner wall of the knob abuts against the distal facing surface of the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

42. The tethering fastener of claim 39, wherein the proximal side of the head portion of the fastener provides a transverse surface of the head portion of the fastener, and the engagement surface of the proximal annular edge portion of the knob is deformed to provide a transverse surface of the knob, wherein the transverse surface of the knob is formed on the engagement surface of the knob when the engagement surface is deformed from the extended position to the deformed position, thereby restricting the rotation of the knob about the fastener axis relative to the fastener.

43. The tethering fastener of claim 35, wherein the knob includes a proximal part and a distal part, the proximal part defining an engagement surface of the knob and the distal part defining a lateral surface of the knob, the proximal part of the knob being thermally bonded to the distal part of the knob to resist separation of the proximal part of the knob from the distal part of the knob and withdrawal of the head portion of the fastener from the knob.

44. The tethering fastener of claim 43, wherein the proximal part of the knob has an annular protrusion extending along the axis of the fastener, the annular protrusion deforming as the mating surface of the proximal part of the knob deforms from the extended position to the deformed position.

45. The tethering fastener of claim 43, wherein the distal part of the knob has an inner wall defining the proximal opposing surface, an engagement surface of the proximal part of the knob provides the distal opposing surface of the knob, the distal opposing surface of the engagement surface abuts against the proximal opposing surface of the head portion of the fastener, and the proximal opposing surface of the inner wall of the knob abuts against the distal opposing surface of the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

46. ​​The fastener of claim 43, wherein a peripheral edge of the head portion of the fastener defines a lateral surface of the head portion of the fastener, the lateral surface of the knob is provided by a recess defined in the inner wall of the knob, the lateral surface of the head portion of the fastener extending into the recess defined in the inner wall of the knob, and the lateral surface of the head portion of the fastener abuts against the lateral surface of the knob, thereby restricting rotational movement of the knob about the fastener axis relative to the fastener.

47. A method of assembling the tethered fastener of claim 6 by mechanically engaging a proximal portion of a knob to a head portion of a fastener, the method comprising: At least one of the proximal side surface and the distal side surface of the knob is moved radially outward relative to the fastener axis to an extended position, in which at least one of the proximal side surface or the distal side surface of the knob is disengaged from the head portion of the fastener. Insert the head portion of the fastener into the proximal portion of the knob; At least one of the proximal and distal surfaces of the knob is radially inward relative to the fastener axis from the fastener axis. The extended position returned to The engagement position is such that the proximal side surface of the knob engages the distal side surface of the head portion of the fastener, and the distal side surface of the knob engages the proximal side surface of the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis. The lateral surface of the head portion of the fastener is brought against the lateral surface of the knob, thereby restricting the rotational movement of the knob relative to the fastener about the fastener axis. Position the spring to bias the knob or the fastener proximally and suppress tilting of the knob or the fastener relative to the axis of the fastener; as well as The sleeve is associated with the knob such that an opening defined in the sleeve extends along the axis of the fastener and receives the shaft of the fastener, and such that the proximal portion of the sleeve prevents the knob from separating from the sleeve along the axis of the fastener.

48. The method of claim 47, wherein the movement step includes moving a leg defining the distal surface of the knob or the proximal surface of the knob radially outward to the extended position, thereby allowing the head portion of the fastener to be inserted into the knob, and the return step includes returning the leg from the extended position to the engaged position, thereby resisting the head portion of the fastener from being disengaged from the knob.

49. The method of claim 48, wherein the return step comprises, in the engaged position, engaging the head portion of the fastener by means of a leg of the knob, thereby preventing the head portion of the fastener from disengaging from the knob.

50. The method of claim 47, further comprising mechanically coupling the outer part of the knob to the inner part of the knob or the head portion of the fastener, thereby preventing the outer part of the knob from separating from the inner part of the knob along the axis of the fastener.

51. The method of claim 50, further comprising moving the facing surface of the outer part of the knob radially outward to the extended position to allow insertion of the inner part of the knob into the outer part of the knob, and moving from the extended position to an engaged position to resist retraction of the inner part of the knob from the outer part of the knob.

52. The method of claim 47, wherein the insertion step comprises pressing the head portion of the fastener into an annular groove defined in the inner wall of the knob.

53. The method of claim 52, wherein the pressing insertion step comprises inserting the head portion of the fastener through a tapered region adjacent to the annular groove on the inner wall of the knob, thereby allowing the head portion of the fastener to be pressed into the annular groove defined in the inner wall of the knob.

54. The method of claim 47, wherein the insertion step comprises extending an inwardly extending protrusion of the knob into an annular groove in the head portion of the fastener, thereby allowing the head portion of the fastener to be pressed into the inner wall of the knob and resisting the head portion of the fastener from being withdrawn from the knob.

55. The method of claim 54, further comprising extending an inwardly extending protrusion of the knob into an axial groove in the head portion of the fastener, thereby restricting rotational movement of the knob about the axis of the fastener relative to the fastener.

56. A method of assembling the tethered fastener of claim 35 by deforming a proximal portion of a knob to engage with a head portion of a fastener, the method comprising: Insert the head portion of the fastener into the proximal portion of the knob; The mating surface of the knob is deformed radially inward relative to the axis of the fastener from the extended position to the deformed position. In the extended position, the engagement surface of the knob disengages from the head portion of the fastener. In the deformed position, the engagement surface of the knob engages the head portion of the fastener such that the proximal side-facing surface of the knob engages the distal side-facing surface of the head portion of the fastener, and the engagement surface of the knob engages the proximal side-facing surface of the head portion of the fastener, thereby restricting the movement of the head portion of the fastener relative to the knob along the fastener axis. The lateral surface of the head portion of the fastener is brought against the lateral surface of the knob, thereby restricting the rotational movement of the knob relative to the fastener about the fastener axis. Position the spring to bias the knob or the fastener proximally and suppress tilting of the knob or the fastener relative to the axis of the fastener; as well as The sleeve is associated with the knob such that an opening defined in the sleeve extends along the axis of the fastener and receives the shaft of the fastener, and such that the proximal portion of the sleeve prevents the knob from separating from the sleeve along the axis of the fastener.

57. The method of claim 56, further comprising abutting the distal side of the mating surface against the proximal side of the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

58. The method of claim 57, further comprising abutting the proximal side of the inner wall of the knob against the distal side of the head portion of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

59. The method of claim 56, wherein the deformation step comprises deforming a proximal annular edge portion of the knob defining the engagement surface radially inward to move the engagement surface from the extended position to the deformed position, thereby resisting the head portion of the fastener from disengaging from the knob.

60. The method of claim 59, further comprising abutting a proximal annular edge portion of the knob against a proximal surface of the head portion of the fastener, and abutting a proximal surface of the inner wall of the knob against a distal surface of the head of the fastener, thereby restricting movement of the head portion of the fastener relative to the knob along the fastener axis.

61. The method of claim 56, further comprising thermally bonding a proximal portion of the knob to a distal portion of the knob, thereby preventing the proximal portion of the knob from separating from the distal portion of the knob and the head portion of the fastener from the knob.

62. The method of claim 61, further comprising: When the mating surface of the proximal part of the knob moves from the extended position to the deformed position, the annular protrusion of the proximal part of the knob deforms.

63. A method for assembling the tethered fastener of claim 1 along the insertion direction and the fastener axis, the method comprising: Fasteners, knobs, springs, and ferrules are supplied as separate components; Position the proximal portion of the ferrule in the insertion direction and extend within the knob along the fastener axis; The spring is inserted into the knob in the insertion direction and along the axis of the fastener; The head portion of the fastener is inserted into the knob in the insertion direction and along the fastener axis to engage with the knob; as well as Engaging the proximal portion of the knob and the head portion of the fastener to resist axial movement of the knob relative to the fastener along the fastener axis, rotational movement of the knob relative to the fastener about the fastener axis, and pivoting movement of the knob relative to the fastener axis. The insertion directions of the sleeve, the spring, and the head portion of the fastener are all the same.

64. The method of claim 63, wherein the insertion direction is the distal direction.

65. The method of claim 63, further comprising deforming the distal portion of the ferrule from a retracted state and an extended state, wherein in the retracted state the distal portion of the ferrule is sized to extend through the knob, and in the extended state the distal portion of the ferrule is enlarged and configured for engagement with a panel.

66. The method of claim 63, wherein the engagement step comprises snapping together the proximal portion of the knob and the head portion of the fastener.

67. The method of claim 66, wherein the engagement step is performed without permanently deforming the knob.

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