A fastener assembly includes a threaded member including a threaded body portion and a head portion. The fastener assembly also includes a first lock member including a plurality of axially-extending ratchet teeth and defining an aperture extending therethrough. The aperture is sized to receive the threaded body portion. The fastener assembly further includes a second lock member including a base portion configured to couple to the threaded member for rotation therewith and at least one spring finger extending axially from the base portion. The at least one spring finger has a proximal end joined to the base portion and a free end opposite the proximal end. The second lock member has a lock position in which the free end of the at least one spring finger is configured to engage the plurality of axially-extending ratchet teeth and an unlock position in which the free end of the at least one spring finger is spaced from the plurality of axially-extending ratchet teeth.
A fastener assembly includes a first lock member including a plurality of radially extending ratchet teeth. The fastener assembly also includes a second lock member including a base portion and at least one tab extending axially from the base portion. The base portion defines an aperture sized to receive the threaded body portion. The at least one tab has a proximal end joined to the base portion and a free end opposite the proximal end. The second lock member is positionable between a locked configuration in which the free end of the at least one tab is configured to engage the plurality of radially extending ratchet teeth and an unlocked configuration in which the free end of the at least one tab is spaced from the plurality of radially extending ratchet teeth. The base portion and the at least one tab are a single piece.
F16B 39/10 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by a plate or ring immovable with regard to the bolt or object
F16B 39/12 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts
F16B 39/24 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
A nut plate assembly includes a plate member, a shell member, a nut, and a bias member. The shell member includes a first end coupled to the plate member and a second end opposite the first end. The nut is disposed within the shell member and is moveable between a first position proximate the shell member first end and a second position proximate the shell member second end. In addition, the bias member is disposed within the shell member and is configured to bias the nut toward one of the first position and the second position.
A fastener assembly is provided and includes a fastener member and a washer member. The fastener member includes an end, an opposing head, and an elongated threaded body portion extending therebetween. The threaded body defines a center axis. The head includes a pawl arm having a pawl tooth and a flange. The washer member includes an axial aperture formed therethrough and a lock tab extending therefrom. The lock tab is configured to be received within a recess defined in a substrate member to rotationally fix the washer member relative to the substrate member. The washer member further includes a plurality of lock teeth. The pawl tooth is configured to intermesh with the lock teeth to allow rotation of the fastener member relative to the washer member in a first direction about the center axis, and substantially prevent rotation in an opposite second direction about the center axis.
F16B 39/24 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
F16B 39/26 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
F16B 39/28 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
F16B 39/32 - Locking by means of a pawl or pawl-like tongue
5.
LOCKING MECHANISMS WITH DEFLECTABLE WASHER MEMBERS
A fastener assembly includes a threaded member, a lock nut, and a lock washer. The threaded member has a pair of opposing flat sections formed in the threaded portion of the threaded member. The lock nut is configured to threadably engage the threaded member and includes a flange having a plurality of axially extending teeth. The lock washer includes a flat central portion with an aperture. The aperture has a pair of opposing flat inner surfaces configured to engage the opposing flat sections of the threaded member to rotationally fix the lock washer. The lock washer also includes at least one outer portion extending upward from the flat central portion at a predetermined angle. The outer portion includes a plurality of locking apertures configured to receive the plurality of axially extending teeth of the lock nut.
F16B 39/12 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts
F16B 39/282 - Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts
F16B 39/284 - Locking by means of elastic deformation
F16B 39/32 - Locking by means of a pawl or pawl-like tongue
F16B 39/34 - Locking by deformable inserts or like parts
F16B 39/36 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with conical locking parts, which may be split, including use of separate rings co-operating therewith
A fastener with a locking mechanism includes an elongated bolt member with threaded segment defining a banking feature and generally planar surfaces, a nut member, a washer member, and a lock member. The nut member has a threaded bore for cooperating with the threaded segment of the bolt member and a peripheral edge with a flat side defining an axial slot. The washer member has a central bore with a banking portion that complements the banking feature of the bolt member such that, when the threaded segment is inserted in the central bore, the washer member moves axially and is rotatably fixed relative to the bolt member. The washer member has an axially projecting circumferential wall with radially inward facing engagement teeth for intermeshing with teeth of the lock member.
F16B 39/28 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
F16B 39/10 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by a plate or ring immovable with regard to the bolt or object
patents
