Abstract: A fastener for securing two objects or structures together in a predetermined relationship. The fastener has a fastener body including a spacer which defines a predetermined distance between the two objects. A first locking element is attached to one side of the spacer and a second locking element is attached to the other side of the spacer. The fastener body is adapted to receive a plunger which when actuated will cause the locking elements to secure the first object and second object a predetermined distance apart.

Abstract: A fastener comprises two, i.e. male and female, members for coupling together a plurality of panels in a spaced-apart and face-to-face relation to one another. The female member has a locking body portion and also has locking pawl portions united by hinge portions to the locking body portion for flexing with respect thereto. The male member is fitted in one of two panels and detachably coupled to the female member fitted in the other panel.

Abstract: An eyelet assembly comprising a plastic eyelet body including a hollow cylindrical portion and a flange formed on the upper end of the cylindrical portion and a plastic seat plate including a center hole in which the cylindrical portion of the eyelet body is fitted is disclosed. The eyelet body includes a plurality of vertically spaced arcuate projections of a predetermined thickness formed on the external peripheral surface of the cylindrical portion. The seat plate includes an engaging portion formed along the inner peripheral edge of the center hole for engaging the projections of the eyelet body. Each of the arcuate projections extends by an angular distance which is less than a quarter of the circumference of the cylindrical portion and the arcuate projections at vertically adjacent levels are staggered horizontally so that they do not vertically overlap each other when viewed from the front side of the eyelet body.

Abstract: The fastener is in a single piece and adapted to achieve the blind assembly and fixing of sumperimposed elements (A, B) provided with openings (C, D) which have a substantially square-shaped common part in which the fastener is engaged so as to fix together the element (A, B) after rotation of the fastener. For this purpose, it comprises a head (1) so shaped as to pass through the common part and connected to a rectangular-sided stem (3) so as to define two shoulders (4). This stem (3) is enlarged at one end in the form of a foot adapted to cooperate with the shoulders (4) by means of wings (6) of the foot to trap therebetween the elements (A, B).

Abstract: A fastener has a first plate-like base portion provided with an upright portion united by a hinge portion to an L-shaped portion terminating in a second plate-like base portion. The second plate-like base portion can be turned about the hinge portion to be locked in contact with a surface of the upright portion on the side opposite the hinge portion.

Abstract: A housing (10, 12, 14) has first and second flexible membranes (32, 42) dividing it into two sealed chambers plus a third chamber from which the movable member (38) projects. Each membrane co-operates with a respective cup (40, 50) and return springs (54, 56) tend to urge both cups away from an end wall (26). The two cups are interconnected by a single piece member (58) which is inextensible but which can readily be bent in two to enable the cups to come into contact with one another. Each sealed chamber can individually be selectively connected to a source of reduced pressure via a respective orifice or pipe fitting (30, 28). The position of the movable member (38) can thus be changed.

Abstract: A plastic fastener assembly is provided which has a base with an upstanding stab which has a single first tooth formed on one side of the stab and at least one second tooth formed on the opposite side of the stab. A cover defines an opening for receiving the stab. The cover has a control rail adjacent the opening and a flap extending into the opening opposite the central rail. The rail slides along the surface of the first tooth during assembly and urges the first tooth and stab toward the flap until the rail engages the notch of the first tooth. The flap automatically moves from the base during assembly as the first tooth and stab move toward the flap. The flap engages the second tooth when assembled inhibiting separation of the stab and cover.

Abstract: Described herein is a substrate fastener having resilient coupling members at the opposite ends of a strut member, characterized in that the coupling members are resiliently engageable in mounting holes of substrates to be fastened to each other, and at least one of the coupling members is connected to the strut member through a flexible hinge of a synthetic resin material. Accordingly, the fastener occupies only small areas on the substrates, permitting to mount electronic parts on the substrates in higher packaging density. The connected substrates can be freely turned into a horizontal or vertical position if desired.

Abstract: Described herein is a substrate fastener having a pair of inclined resilient coupling members at the opposite ends of a strut member, the coupling members being resiliently lockable in mounting holes provided in substrates to be fixed. A vertical substrate of a printed wiring board can be fixed in upright position on a horizontal printed wiring board easily and securely by the use of the fastener. Since the substrate fastener occupies only small areas on the substrates, it permits to improve the density of electronic parts which can be practically mounted on the printed wiring boards.

Abstract: The disclosure relates to an expansion pin consisting of a shank which at one end is provided with means for securing articles and at the other end is provided with a point. In order to obtain an anchoring having further expansion effect, the shank has an aperture in the form of a slot in which there is inserted a plastically and/or resiliently deformable insert which thickens the shank of the expansion pin in the region of the slot.

Abstract: A securing unit for securing at least two different substrates spaced apart at a predetermined distance comprising a first securing portion for securing a first base plate, a second securing portion which forms an arrow shaped head and for securing a second base plate, and a support base portion for supporting said first and second securing portions in which the height of the first securing portion of the securing unit has been remarkably reduced. With this construction, the projection of the first securing portion of the unit is not impaired when removing unnecessary remnants or solder or when cleaning the surface of the first base plate, while the securings of the base plates by the first and second securing portions of the securing unit according to the present invention has been remarkably increased.

Abstract: A fastener for mounting a circuit board or the like to a frame is disclosed. A mounting arrangement uses removable fasteners which are received by non-circular openings in the circuit board and rotated into engagement with the surfaces of the circuit board. The fasteners have at least two substantially parallel resilient limb members which have opposing recesses for receiving a frame member. This arrangement is especially useful for mounting non-rectangular circuit boards or for non-parallel mounting of circuit boards.

Abstract: A device for rapidly mounting a plate (P) on a chassis (C) comprises flexible displaceable arms (4), formed by a single piece of moulded synthetic resin (1). The piece has a lateral opening for inserting a damping element (5) of rubber. The assembly can no longer be dismounted when a connecting piece (6) of suitable diameter is inserted.

Abstract: A screw anchoring plug or bushing for use in predrilled mounting holes in elements of semihard materials such as chipboard, consisting of a sleeve made as a rolled up piece of metal sheet material provided with a number of slightly projecting barb-like tongue portions and cured to be resilient, whereby the tongue portions project as leaf springs. The sleeve is threaded for direct engagement with a standard screw, and when it is inserted in the mounting hole and the ends of the tongue portions are hereby caused to resiliently engage the wall of the hole, the sleeve will thereafter be moved axially outwardly when the screw is tightened, and the tongues will cut themselves into the hole wall and get spread to resist further retraction of the sleeve.

Abstract: The invention relates to a fastening element, in particular one intended for the fastening of installation pipes or cables on a wall or ceiling, having an optionally longitudinally divided stem provided with spreaders on the stem surface for a positive connection with the wall of a bore hole; according to the invention, the spreaders are formed as eccentrics (2, 2', 2", 2"') whose centers of rotation or axes of rotation (6) are positioned in the zone of the stem surface (1) and whose eccentric faces (3), whose distances from the centers of rotation or axes of rotation (6) increase in rotating direction on pulling the fastening element out of the bore hole, face away from the stem surface (1).

Abstract: A retainer assembly for securing a sheet-like material to a wall comprising an elongated stud having an inner end welded to the wall and extending outwardly therefrom so as to be perpendicular to the wall, the stud having a pointed outer end whereby the sheet-like material can be impaled thereon and positioned so as to be adjacent the wall, the stud being provided with a longitudinal slit extending from the outer pointed end to a location adjacent the inner end so as to form a pair of longitudinal fingers, the stud being bent adjacent the inner end whereby the fingers are laterally offset from each other, the fingers being provided with alternate outwardly extending teeth and recessed notches along the longitudinal sides of the fingers opposite from the slit, and a retainer plate provided with a central opening therein such that the pointed end of the stud can be inserted through the opening to permit the plate to be slidably received on the stud, the opening in the plate being approximately equal to the dist

Abstract: A trim cover clip comprising a hollow tube made of a plastic substance, containing in the wall of the hollow tube at least one slit having the shape of three sides of a rectangle and thereby enclosing therein an engaging piece possessing a free end, and having the inner wall of the engaging piece corrugated to form teeth capable of engaging with the thread on the bolt being passed through the inner hole of the hollow tube is improved by having the engaging piece formed aslant inwardly enough for the free end thereof to thrust deeply into the inner wall of the hollow tube.

Abstract: A mounting clip is provided for pressing onto a weld stud having ridges extending radially outwardly therefrom. The clip is provided with a box for accommodating the stud. A frame is provided on the top of the stud receiving box which provides wall structure for supporting a pair of detents, which wall structure is designed to be flexible, allowing the detents considerable freedom of movement.

Abstract: A stackable hinging printed circuit board support is provided, comprising an integral plastic molding. The support is provided with an intermediate notch and an adjacent wall section which is sufficiently thin as to permit flexing for pivoting of one printed circuit board away from another. The support has an upstanding circular segment pilot for fitting in a circular aperture of an overlying printed circuit board. The support has at its bottom a W prong structure dimensioned for insertion in a circular aperture of a printed circuit board so as to coact with the upstanding circular segment pilot of an underlying support to wedge the pilot in the aperture. The W prong of one support is received in a recess provided in the body of a subjacent support.

Abstract: A one-piece, snap-in fastener is provided for securing an elongate compressible gasket of given cross-sectional configuration to a panel having an elongate aperture into which the snap-in fastener is secured. The snap-in fastener comprises a bight portion, a pair of resilient leg portions integrally joining the bight portion and normally extending outwardly therefrom in substantially parallel, spaced apart relation. Each leg portion terminates with an inwardly extending foot portion. The bight portion, leg portions and feet portions lie in a common straight plane. A pair of resilient wing portions are integrally formed at the end of the feet portions and diverge from opposite sides of the common straight plane. The leg portions are spaced apart a distance to span the elongate aperture and are shaped to conform to the ends of the aperture in the region adjacent to the bight portion.

Abstract: Disclosed is a device for clamping two plates with their surfaces laid on each other, comprising a hollow head, a hollow trunk provided on each side with a side catch and provided with a tongue between its opposite sides, a leg extension hinged to the trunk and provided with a front catch, and a foot integrally connected to the end of the leg extension. In use, the leg extension is folded to fit in the trunk hollow space, and at the same time, the foot is pushed in the head hollow space. The folded body is pushed in a fixing aperture made in a first plate until its side catches engage the undersurface of the aperture edge. Then, the first plate is pushed against a second plate with the folded clamp inserted in a fixing aperture made in the second plate until its front catch engages the undersurface of the aperture edge of the second plate.

Abstract: A fastening clip is disclosed for use in fastening a component with a hole through it to a surface which also has a hole through it, in particular for motor cars. The clip has a supporting plate 5 extending at right angles to the axis of the clip and a rectangular body 6 connected thereto. The body 6 is connected to the holding plate 5 by way of expanding and locking arms connected to one another by integral bending areas 13, 14, 15. The expanding and locking arms 11, 8 and 12, 9 respectively are actuated by bending the body part 6 through 90 degrees to a position where it can be locked relative to the holding plate 5.

Abstract: A clip comprises a male member and a female socket both molded of plastics. The male member is adapted to be detachably fastened to a substrate such as a panel of an automobile body and the female socket is adapted to accommodate the male member rotatably therein and to be fastened to a part such as a radiator grille. Union of the substrate and the part accomplished by the use of this clip can be easily broken by causing the male member to be rotated relative to the female socket with a tool such as a screw driver.

Abstract: An upholstery fixing device consists of a bracket having a holdfast suspended therefrom with bendable or flexible straps. In use the bracket is riveted to the back of a trim board, and the holdfast is pushed into an associated aperture of an inside panel of a car door. Then, the bendable straps can be yieldingly bent to automatically reduce any misalignment between a fixed bracket (and hence its holdfast) and an associated aperture of the inside panel of the car door, thus facilitating the fixing of the upholstery to the inside panel of the car door in exact registration.

Abstract: A fastener comprising a male member formed of a flat base, a clipping shank provided on the underside of the base, and a pillar erected upright from the upper side of the base and provided at the leading end thereof with a head, and a female member formed of a tubular part, a pair of depressing blades raised through thin-walled hinges from the tubular part and projected parts provided at the lower ends of the depressing blades. This fastener provides the fastening of a compressible sheet such as an insulator sheet or carpet to an interior decorative panel in an automobile, for example, by having the tubular part set around the pillar of the male member with the depressing blades kept in an upright position, causing the head of the pillar to force the depressing blades down to a level position thereby bringing the projected parts into fast engagement with the underside of the head of the pillar and nipping the compressible sheet fast in position between the male member and the female member.

Abstract: A sealing assembly for a front-pillar and side-door arrangement of an automotive vehicle, the pillar and door arrangement including a front pillar having a wall portion formed with an opening and a side-door sash assembly including a front portion extending along the front pillar and spaced apart from the wall portion of the pillar, the sealing assembly comprising a flexible sealing member having an inner portion attached to the front pillar and an outer portion warped from the outer portion and held in elastically pressing contact with the front portion of the side-door sash assembly, the sealing member being formed with an opening in the inner portion thereof, and a snap element having a head portion passed through the opening in the sealing member and a stem portion projecting into the front pillar through the opening in the wall portion of the pillar and smaller in cross sectional area than the head portion so that the head portion has adjacent to the stem portion an end face which is held in contact with

Abstract: A combined metal and plastic standoff for supporting a circuit board in fixed spatial relationship with another element comprises a rigid plastic body of appreciable length to produce the standoff effect and a metal retaining member integrally mounted on the plastic body at an operative end thereof. The metal retaining member has main and retaining portions, the main portion being fixedly disposed within the plastic body and the retaining portion extending outwardly from the plastic body having a resilient reverse bend segment, and being adapted for engagement with the circuit board or other element by an essentially longitudinal motion of the standoff along the axis of the body length to physically secure the circuit board or other element to the plastic body adjacent to the operative end.

Abstract: An integrally formed fastener molded of plastic material. Such fastener comprises an enlarged head, a shank, shoulders defined near the upper end of the shank, a pair of flexible wings joined to the lower end of the shank, and a pair of stops defined on the shank to limit the movement of the wings toward the shank. The wings flex inwardly until they contact the stops, and then the wings roll inwardly about the stops as the fastener is pushed through aligned apertures in security boxes, panels, etc. While the plastic material, such as polypropylene, possesses sufficient resiliency to be rolled inwardly, the wings will break and/or the shank may fail when the fastener is forcibly withdrawn from its seated position, thus providing a positive indication of an attempted breach of security.

Abstract: A plurality of plastic fastener members each provided with a fixing part, a resilient piece, and an engaging face are attached fast to the side walls of the lamp housing for an automobile. When the lamp housing is inserted into an insertion hole formed in advance in the body panel of the automobile, the engaging faces of the fastener members come into fast engagement with the rear side of the edge of the insertion hole. Thus, the lamp housing is safely fastened to the automobile body by one action.

Abstract: A pin comprises a head portion, a shank portion, and an end portion flared gradually to a dimension transverse to the pin axis greater than the shank portion. The end portion is slotted to afford resilient resistance to entry and withdrawal into a hole. The pin head portion is disc-like, the shank portion is of uniform circular cross-section about the pin axis, and the shank merges gradually into the slotted end portion to define an hollow oval merging at the tip as a bight, the end portion thus being adapted for snapping into a suitable hole.The pin is especially adapted to use with a circuit element carrier having an inverted U-channel in which the element is carried. The element may be inserted into a pair of holes in the top and bottom wall of the inverted U-channel, so that the shank of the element serves as a stop to prevent longitudinal escape of an element beyond the pin shank. The pin may be withdrawn after insertion and reused in the same or other holes of the same or other like carriers.

Abstract: A mining bit to be mounted for rotation in a bore of a support block or on a drill steel having a retention configuration opposite the working end. A bit shank is formed with an abutment flange at the insertion end and a recess adjacent said flange to receive flexed resilient fingers of a resilient retention ring during insertion of said ring in said bore. A fulcrum land supports an unsplit end of said ring. The resilient fingers carry an annular bulge projection which engages an annular recess in a support bore. The ring can extend the length of the retention shank to serve as a wear sleeve. With a drill steel, the retention ring is mounted on an extending insert to cooperate with a female recess in a hollow bit.

Abstract: The invention relates to a one-piece plastic fastener that has a shank, an enlarged head on a rear end of the shank, and resiliently movable bifurcations at the front end of the shank, the medial portion of the shank being wider than each of its ends to provide a shoulder and being flexingly contractable widthwise so that the fastener enters aligned holes in workpieces to be joined with a snap action. The shank is bifurcated along its length, and the forwardly opening slot between its bifurcations or legs is partially bridged by a tension-adjustment member, formed integrally with the bifurcations along one side thereof and extending inwardly from the side of the slot for a predetermined distance. The member controls or determine the amount of force required to move the legs or bifurcations toward each other during insertion into or removal of the fastener from the hole in the workpiece.

Abstract: A device for detachably fastening an element having a first aperture onto a support panel of a motor vehicle having a second aperture. The device includes a bushing insertable into the second aperture, which bushing includes an exterior flange and resilient legs which cooperate to fix the bushing to the support member. The device further includes a plug which is insertable through the first aperture and into the bushing. The plug has a conically tapered bulge which cooperates with an elastic constriction in the bushing to fix the plug relative to the bushing and therefore the element relative to the support panel.

Abstract: A plastic fastener comprising a head portion to be contacted with a given panel, a leg portion to be inserted through a fitting hole bored in the panel, a plurality of fin-like engaging projections disposed in the stepped manner in the direction of the length on the outer surface of the leg portion is improved so as to be inserted in its correct posture through the fitting hole and brought into fast attachment without any play to the panel. The improvement is accomplished by providing the leg portion with at least two guide ridges having at each terminal edge thereof an engaging ridge.

Abstract: A fastener for detachably fastening first and second workpieces together is disclosed. The first workpiece has a through aperture of predetermined shape. The second workpiece has a through aperture of predetermined shape which includes a first small diameter portion having first opposed edges spaced apart a first predetermined distance and a second annularly displaced portion having second opposed edges spaced apart a second, relatively larger predetermined distance. The fastener comprises a base, a first catch portion integral with and extending outwardly from a first side of the base, a second catch portion integral with and extending outwardly from the base oppositely from the first catch portion, and a twistable stem integral with the base for enabling at least one of the first and second catch portions to be twisted for angularly spacing such catch portion for disengagement of the fastener from the aperture of at least one of the first and second workpieces with which such catch portion is engaged.

Abstract: A catch member adapted to be secured to the end of a grille member for securing same to a window parallel to the inner surface thereof. The window sash presents inwardly facing surfaces which have longitudinally extending shallow grooves forming seats of the catch members. The catch members comprise a stem and a head portion integrally formed therewith. The head portion has a base from whose lower surface the stem depends, and an arcuate arm flexibly secured to the base along one edge thereof. The arcuate arm overlies the base and its major portion is spaced apart from the upper surface of the base whereby it can yield when the window grille is being fitted to or removed from the window. The arcuate arm is curved in one direction and flat in the opposite direction.

Abstract: The invention is a one-piece drive fastener for securing a plurality of apertured members to each other, and comprises a head from which extends a rigid shank. The shank terminates in a tip, and also has a plurality of circumferentially spaced-apart, rigid ribs which extend radially outwardly from and along the length of the shank, the ribs further having a pair of oppositely facing side walls. A plurality of axially spaced-apart, flexible flaps are integrally attached to one of the opposite side walls of at least some of the ribs, and the ribs form a sufficiently large cross-sectional width so that the shank is tightly engaged in at least one of the apertures and is thereby maintained in a substantially normal position relative to the members.

Abstract: A fastener constituting an essential part of a fixing structure for fastening a radiator grille to an automobile body is provided on one side of the base plate portion thereof with fastening means for engagement with the automobile body and on the other side of the base plate portion with fastening means for engagement with the radiator grille and additionally with a rib in a position surrounding the radiator grille fastening means which rib is tightly accommodated into a recess formed in the radiator grille fastening portion. This arrangement gives the fastener enhanced resistance to various forms of stress that may be exerted on the radiator grille in use.

Abstract: The combination of a decorative non-functional window shutter and a one-piece plastic fastener, and a method of mounting the same to a building wall. The shutter is made of molded plastic or aluminum. The fastener is of non-corrosive plastic construction having a plurality of angled resiliently-deformable teeth which, when inserted through a hole in the shutter into a mounting hole formed in a building wall, tend to flex in the direction of insertion and tend to return to their original position to resist removal.

Abstract: A fastener assembly is disclosed which comprises a clip for mounting a constituent member to a corresponding receiving member. A socket portion is integrally formed on the constituent member, which socket portion has a cylindrical opening with a pair of engaging projections extending from opposing inner peripheral surface portions of the opening toward each other. The clip has a shaft, a support portion formed at a longitudinal central portion of the shaft and adapted to fit in the opening of the socket portion, a pair of spearhead-shaped snap portions formed at opposite ends of the shaft, one of which snap portions is adapted to fit in the opening of the socket portion and engage the projections, and small flexible bosses which retain said one of the snap portions in the opening when this snap portion is disengaged from the projections. A mounting hole is bored on the receiving member so as to receive the other one of the snap portions.

Abstract: The periphery of the portion of the valve body of a tire valve which is located on the outside of the wheel rim is composed of elements which are elastic in transverse direction and rigid in longitudinal direction. Tightness is assured by a sealing joint. The valve body may be of a single piece or of two pieces.

Abstract: Disclosed is a plastic fastener which comprises one or more protective frames having a profile suitable for substantially intimate insertion into matched openings formed in a given basal object and as many fixing legs formed within the empty spaces enclosed with the protective frames and provided with engaging claws for fast engagement with the edges of the openings in the basal objects. When the fastener is attached to the basal object by the cooperation of the fixing legs and their respective protective frames, the protective frames bring about a reinforcing effect and add greatly to the fastness of the engagement between the fastener and the basal object.

Abstract: A fastening system including two plastic fasteners for removably securing two workpieces together, including a female socket accepted and retained within a bore in one workpiece and a double ended male stud self-retained in a bore in the second workpiece and removably accepted in complimental fashion in the female socket. One end of said male stud carrying a deflectable spherically shaped segmented head which permits limited tolerance variation between center lines positions of making bores in the two workpieces.

Abstract: There is described a tamper-proof fastener for use in security applications, the fastener comprising inner and outer members interconnected by flexible straps. The inner and outer members each comprise a leading end, a shank, and a trailing end, the shank of the outer member consisting of two substantially parallel legs defining between them an open-sided passage which contracts towards the leading end, and the leading end of the outer member consisting of two limbs which define between them an open-sided space and converge to a tip where they are interconnected, each limb being connected to a respective leg and presenting an external shoulder facing away from the tip and an internal shoulder facing towards the tip, the trailing end of the outer member including outwardly extending portions presenting an external shoulder facing the leading of the outer member.

Abstract: The disclosed structure is for mounting an element to a body, comprising a through hole bored on one of the body and element, a mounting hole bored on the remaining one thereof, and a unitary clip detachably engaging said through and mounting holes, said clip having a holding portion engageable in said through hole, and said through hole having a guide means for twisting said holding portion as the holding portion is inserted in the through hole but releasing said twist upon complete insertion of the holding portion into the through hole.

Abstract: The invention relates to a quarter-turn fastener for fastening a panel to a support, the fastener comprising an integrally moulded plastics stud having a head and a shank. The shank extends in use through elongate slots in the panel and support and is formed by a pair of depending resilient legs each of which has at its end remote from the head a transverse flange for engaging the rear surface of the support adjacent the slot in which the stud is mounted. Each leg includes an abutment arranged to engage the side of the slot in the support or in the panel after rotation of the stud through substantially a quarter of a turn to prevent further rotation in the same sense.