Abstract: This invention relates to a sealing spring fastener, which comprises a U-shaped structure, on which an elastic body has been incorporated. The elastic body has a closed cavity within the U-shaped structure. The sealing spring fastener can form an assembly with an extension of a panel, preferably a plastic panel. The assembly or the fastener by itself can be engaged into the slot of a solid sheet, preferably a metal sheet, in a manner that one side of the sheet is sealed from the other side of the sheet in the vicinity of the slot.

Abstract: The invention concerns hard panels for floor coverings, which are provided, at least on two opposite edges, with coupling devices made in one piece with the panels wherein similar panels may be coupled together to form a floor covering, wherein these coupling devices provide for an interlocking in a direction perpendicular to the plane of coupled panels, as well as in a direction perpendicular to the edges concerned and parallel to the plane of coupled panels. These coupling devices comprise a tongue and a groove. A lip which is situated on the bottom side of the groove is longer than a lip located on the top side of the groove. The edge which is provided with the tongue is made elastically flexible.

Abstract: An interlocking fastener assembly has an insertion member, a receiving member, and a fastener. The receiving member has a guide opening with pockets which receive a polygonal locking portion of the insertion member during assembly. The locking portion has tapered sides and apexes to self center the insertion member. The guide opening pockets and sides allow limited rotation of the insertion member in the receiving member until a mechanical lock is created preventing further rotation of the insertion member. The mechanical lock allows a fastener to be threaded onto the insertion member without the use of a backup tool.

Abstract: The invention concerns a floor covering formed of hard panels (2) which are provided, at least on two opposite edges (3-4, 5-6), with coupling devices (7) made in one piece with the panels (2), whereby these coupling devices (7) provide for an interlocking in a direction (R1) perpendicular to the plane of the floor covering (1), as well as in a direction (R2) perpendicular to the edges (3-4, 5-6) concerned and parallel to the plane of the floor covering (1). These coupling devices (7) comprise a tongue (8) and a groove (9). The lip (11) which is situated on the bottom side of the groove (9) is longer than the lip (10) on the top side. The edge (5) which is provided with the tongue (8) is made elastically flexible.

Abstract: Workpieces that have various elements for joining in accordance with the prior art often have an undesirable play when in the mounted state or are costly to produce.

Abstract: A system for interconnecting construction panels suitable for modular construction has a hybrid connector, a receptor connector and locking connector. The hybrid connector is inserted into the aperture of the receptor connector which limit the displacement relative to each other. The locking connector is inserted into the aperture of the hybrid connector to interlock the three connectors. A panel connector can have an extension tab to provide additional locking action. Panel connectors can have stiffening portions that fill spaces between the connectors to reduce the need to insulate the interconnection and assist in repelling foreign matter entry. A method for interconnecting construction panels includes mating the hybrid connector and the receptor connector and then mating the locking connector from either side of the receptor connector.

Abstract: A stud bridging/spacing member (30) generally having at least three longitudinally spaced apart notches (26) for receiving and engaging therein a web of a metal stud. The notches (26) extend at an incline to the longitudinal axis of the elongated member.

Abstract: A guiding means at a joint between boards, the joint comprising groove and tongue preferably intended to be joined by means of glue. The tongue includes at least one guiding wedge. A fitting clearance between the tongue and the groove includes a first fitting clearance and a second, guiding, fitting clearance. The second, guiding, fitting clearance is obtained through the guiding wedges which are arranged parallel to the extension of the joint. The first fitting clearance comprises the main part of the fit and the second, guiding fitting clearance comprises a smaller part of the fit. The first fitting clearance is in the range 0.1-1 mm, while the second, guiding, fitting clearance is in the range 0.01-0.2 mm. The tongue of the joint is provided with at least one equalizing recess so that at least one equalizing cavity is formed in the joint, which equalizing cavity receives surplus glue used during the joining.

Abstract: 12A high temperature gas turbine component includes an inner core made of a monolithic ceramic material embedded within an outer CMC shell. The inner core may be formed with a through hole, blind hole, wear pads and the like. A method of making the bushing includes the steps of a) forming an inner core of silicon nitride or silicon carbide; and b) applying a ceramic matrix composite material over substantially all of the inner core.

Abstract: A cultivator point assembly includes an adaptor having a front and a rear end, and intended to be mounted to a cultivator machine at an upper end and having a foot projecting from a lower end. A cultivator point is adapted to be engaged with the adaptor and has a mounting section and a forward ground-working edge. An aperture in the mounting section is adapted to receive the foot of the adaptor in a first reversed position, whereafter the cultivator point is rotated 180° relative to the adaptor into an intermediate position in which the ground working edge is in a forward facing position relative to the adaptor, and is then moved rearwardly relative to the adaptor into a working position. A stop in use prevents unintentional detachment of the cultivator point from the adaptor.

Abstract: A one-piece elastomeric furniture coupling device for securing a first furniture panel to a second furniture panel, the coupling device comprising a top head portion and a downwardly-extending stem portion. The top head portion comprises a front face plate and a body portion extending rearwardly from the front face plate. The front face plate is molded in the shape of an inverted truncated pyramid, with a lower edge of the face plate being shorter in width than an upper edge. The body portion conforms in shape to the front face plate resulting in a truncated frusto-conical shape. The body portion has a plurality of securing ridges along its surface, for secure attachment within a mortise drilled into a first furniture panel. The stem portion is substantially cylindrical and has a plurality of barbs along its outer surface for secure attachment within a hole drilled into a second furniture panel to be assembled with the first furniture panel.

Abstract: This invention relates to a sealing spring fastener, which comprises a U-shaped structure, on which an elastic body has been incorporated. The elastic body has a closed cavity within the U-shaped structure. The sealing spring fastener can form an assembly with an extension of a panel, preferably a plastic panel. The assembly or the fastener by itself can be engaged into the slot of a solid sheet, preferably a metal sheet, in a manner that one side of the sheet is sealed from the other side of the sheet in the vicinity of the slot. This invention also relates to vehicles having parts connected with the above sealing spring fasteners.

Abstract: A fastening element for doubleglass panels has a threaded bolt having a forward end and provided with an expansion cone at the forward end, an annular expansion element pushed onto the expansion cone for expansion in a hole drilled in a rear glass panel and provided with an undercut in a region of a bottom of the drilled hole, a cap placed on the expansion element and resting against an end face of the threaded bolt, and a spacing sleeve arranged on a shank of the threaded bolt so as to rest against the rear glass panel and to pass through a front glass panel, the spacing sleeve having a portion engageable in the hole drilled in the rear glass panel and providing an abutment for the expansion element.

Abstract: A method for creating a releasable joint between two components wherein one of the components is elastically deformed by radial compressive forces in such a way that one effective circumferential contour corresponds to the corresponding effective circumferential contour of the other component with a predefined clearance, and the two components are fitted together. After being fitted together, a compressive joint is created by the fact that the deformed component is elastically deformed back by reducing or discontinuing the radial compressive forces. What is used as the elastically deformable component is a hollow body which has multiple cavities in its wall, and the radial compressive forces are exerted on the inner or outer contour of the hollow body located opposite the effective circumferential contour in such a way that their working lines, considered in the circumferential direction, run approximately centeredly through the cavities.

Abstract: A tumbling unit such as a casting shake-out unit, rotary media drum, sand reclaimer or the like, is provided. The tumbling unit includes a cylindrical outer shell and a cylindrical inner shell. The inner liner is formed of a series of interfitting segments. The segments each have an inner surface, an outer surface, side edges, a front edge, a back edge, and a vane extending from the outer surface. The side edges of the segments have a groove formed therein which extends the length of said the edges. The grooves of neighboring segments define channel between the segments. A pin or liner lock key is received in the channel to urge the neighboring segments apart to form a tight interfit among the segments in a row of the liner. The retaining pin has a body having side surfaces, a top surface, and a bottom surface. A hole extends through the pin body and receives a dowel, which is sized to extend from opposite sides of said pin body.

Abstract: An assembly of parts is prepared by providing a female part having a recess and a male part having an inserted surface received within the recess. A relief pattern such as knurling is formed on the inserted surface. The inserted surface of the male part is inserted into the recess of the female part with a contacting-channeled fit between the inserted surface and the recess surface, so that the knurl serves to align the inserted surface within the recess. The inserted surface of the male part is brazed or otherwise joined to the recess of the female part.

Abstract: A mounting assembly, having a first portion adapted to be mounted on the surface, the first portion presenting a first plane, a second portion adapted to be fastened to an object such as a speaker, the second portion presenting a second plane, and connectors for releasably connecting the second portion to the first portion in a connected condition with the first and second planes in engagement, the connectors releasably connecting the first and second portions by relative movement of the first and second planes towards each other and then movement of the first and second portions relative to each other along the contacting planes.

Abstract: An arrangement for connecting tubular articles, particularly piles and pile sleeves, in which a first tube (4) fits into a second tube (2), the first tube having a first circumferential recess (10) and a second circumferential recess (12), and the second tube has a first set of latches (8) and a second set of latches (8′) which are resiliently biased to engage in the first and second recesses respectively. When the latches and the recesses are mutually engaged, axial movement is prevented by abutments in the recesses and the latches by one set of latches in one direction and the other set of latches in the opposite axial direction. Latching engagement is only possible when the first set of latches is opposite the first recess and the second set opposite the second recess. This ensures positive connection and the use of preferred elements (30) which extend from one set of latches through the outer casing of the second tube. A mechanism can be provided to readily unlatch the tubes.

Abstract: A holder is provided for attaching a housing to a rail, being securable to the housing and having a recess which is engagable with a projection of the rail and a flexible member having a closed cross-section and which is clearly deformable in a direction approximately perpendicular to a direction in which the holder is moved towards the rail during attachment, such that the flexible member is deformed and a clamping force is applied when the holder is moved towards and brought into contact with the rail.

Abstract: A sintered, flanged cam pulley includes a sintered cam pulley body and an annular flange caulked to the sintered cam pulley body. The sintered cam pulley body has at an end portion thereof an axial annular projection and a stepped portion formed on an outer periphery side of the annular projection. An inner peripheral surface of the annular flange is fitted on the stepped portion of the sintered cam pulley body. The tip of the annular projection is deformed plastically from the inner to the outer periphery side of the annular projection by a caulking roller. The caulking roller has a first conical surface of a large angle and a second conical surface of a small angle contiguous to the first conical surface, the first and second conical surfaces being formed on an outer peripheral surface of the caulking roller. The annular flange is thereby caulked to the sintered cam pulley body.

Abstract: This invention relates to a sealing spring fastener, which comprises a U-shaped structure, on which an elastic body has been incorporated. The elastic body has a closed cavity within the U-shaped structure. The sealing spring fastener can form an assembly with an extension of a panel, preferably a plastic panel. The assembly or the fastener by itself can be engaged into the slot of a solid sheet, preferably a metal sheet, in a manner that one side of the sheet is sealed from the other side of the sheet in the vicinity of the slot.

Abstract: A vertically adjustable seat post assembly for cycles includes a light-weight vertical seat post formed from a relatively soft high strength-to-weight material, such as a carbon fiber composition, and a relatively hard tubular protective tubular sleeve permanently secured concentrically about the lower end of the seat post. The outer diameter of the sleeve is slightly less than the inner diameter of the seat tube opening of the cycle frame, whereby the carbon fiber seat post is protected by the sleeve when the seat post is vertically adjusted and clamped within the seat tube opening.

Abstract: In an apparatus (1) having a drive shaft (18) and having a disc-shaped support (17) which is rotationally locked to the drive shaft (18) the support (17) has two tubular projections (22, 23) each having a connecting zone (24, 25) in its interior, which connecting zone has a given height (H1, H2) and a given inner diameter (D1, D2), each of the two projections (22, 23) being connected to the drive shaft (18) by a press-fit in the area of its connecting zone (24, 25), and the two inner diameters (D1, D2) of the two connecting zones (24, 25) having different values.

Abstract: A method for creating a releasable joint between two components wherein one of the components is elastically deformed by radial compressive forces in such a way that one effective circumferential contour corresponds to the corresponding effective circumferential contour of the other component with a predefined clearance, and the two components are fitted together. After being fitted together, a compressive joint is created by the fact that the deformed component is elastically deformed back by reducing or discontinuing the radial compressive forces. What is used as the elastically deformable component is a hollow body which has multiple cavities in its wall, and the radial compressive forces are exerted on the inner or outer contour of the hollow body located opposite the effective circumferential contour in such a way that their working lines, considered in the circumferential direction, run approximately centeredly through the cavities.

Abstract: A bolt fastening structure is comprised of a fastened member and a fastening seat. The fastened member has a bolt hole for inserting a bolt and a pair of slits disposed around the bolt hole. The fastening seat has a pair of leg portions and a connecting portion integrally connecting the leg portions. The leg portions have a length which is substantially as same as a depth dimension of the bolt hole of said fastened member. The leg portions are inserted to the slits, respectively. By fastening the bolt with a threaded hole of a second fastened member, upper and lower surfaces of the leg portions are fitted to a head of the bolt and the second fastened member.

Abstract: A device (10) for fastening components (11) has a mounting element (12), which rests each with a respective joining face (16) on the components (11) to be connected, and which is covered with a cap (14). The cap (14) has extensions (38), which positively engage recesses (30) embodied on the mounting element (12). This assures a secure hold of the cap (14) even after a relatively long time.

Abstract: A structure for connecting a tool with a grip, including an insertion rod, an outer sheath and a fastening ring. The insertion rod is inserted in the outer sheath. One side of the insertion rod has a projecting block formed with a transverse recess. The outer sheath is formed with a split in which the projecting block of the insertion rod is inserted. A periphery of the outer sheath is formed with an annular groove corresponding to the transverse recess of the projecting block. The inner circumference of the fastening ring is formed with an annular rib fitted in the annular groove. The rib is formed with a dent having a width slightly larger than the width of the split. When rotating the fastening ring, the rib is engaged in the transverse recess of the projecting block to restrict the insertion rod from displacement.

Abstract: The device comprises a shaft (1) and a hub (2) which is attached to said shaft. One of the edges (10) of the opening (5) in the hub (2) through which the shaft (1) should be passed has a curved profile (11). This profile (11) of the hub edge (10) is tangentially connected to the inner surface (6) of the hub opening (5).

Abstract: An improved flywheel for use in a small gasoline engine of the type utilized in string trimmers, chain saws, lawn mowers and other such devices. The flywheel comprises a flywheel body including a central hub portion and an integral wheel portion. The hub portion of the flywheel body defines an axial bore extending therethrough in which the engine's drive shaft is received when the flywheel is mounted thereon. An integral key is located in the axial bore for receipt in a corresponding keyway defined in the drive shaft. The key is configured without deep-cut stress reliefs, having opposed side walls extending directly from an inside surface of the through bore.

Abstract: A floor tile, in particular a laminate panel, parquet element or such like, with an edge profile on at least two opposite edges in the form of a modified groove and tongue joint, is designed in such a way that there is a tongue 20, 30 and a groove 22, 26 on each of the said two edges. The edge profiles are contrived so that the adjacent tiles can be locked in place in relation to each other in both the vertical and horizontal directions. Tongue 20 on the first tile 10 and groove 22 in the second tile 12 rise upwards from the bottom of the tiles at an angle. Accordingly, the bottom wall of groove 26 in the first tile and the bottom outer surface of tongue 30 on the second tile 12 are also inclined at an angle, while the top surfaces of the groove and tongue are oriented horizontally or parallel to the plane of the tile.

Abstract: A fastener assembly attaches and aligns two panels. The fastener assembly has a connector member (20), a support platform (66) and a tab (80). The connector member has a head (26), a threaded portion (32) and an annular groove (36). The support platform (66) is mounted on a first panel. The support platform (66) threadingly engages the threaded portion (32) of the connector member (20). The tab (80) is mounted on a second panel. The tab has an opening (82) for receiving the annular groove (36) of the connector member (20) in a supporting relation. Rotation of the connector member (20) moves the second panel towards and away from the first panel in a direction of draw to space the second panel relative to the first panel.

Abstract: A one piece stowage bin (10) has a generally rectangular, polygonal open-fronted box-type structure. Right and left end panels (14) and (18) rise up from the sides of the bottom panel (12) to form side walls. Three fold lines allow the stowage bin (10) to comprise the rear lower panel (22), the rear upper panel (26) and the top panel (30) of the stowage bin. Tenons (51), (52), (53), (54), (57), (58), (59), and (60) extend from the margins of the right and left end panels (14) and (18). Mortise pockets (63), (64), (65), (66), (71), (72), (73), and (74) are formed in the side margins of the rear upper panel 26 and the top panel (30). The mortises and tenons create interlocking mortise and tenon joints that do not require a bonding adhesive. Right and left formed angle brackets (38) and (40) secure the right and left end panels (14) and (18) to the top panel (30).

Abstract: A tubing connector for joining the ends of two lengths of expandable tubing including two expandable tubular portions for mounting on the ends of the lengths of expandable tubing. Each portion includes a plurality of circumferentially spaced couplings for engaging corresponding couplings on the other portion. The engaging parts of the couplings are located on parts of the tubular portions which define an upset following expansion.

Abstract: A joint structure, such as a bulkhead joined to an annular shell, is formed by providing a conforming pattern of ridges and valleys on the facing portions of the elements to be joined. A tensioned band is applied to the external surface of the annular shell overlying one of the ridges in the annular shell. The tensioned band stresses the joint in compression, offsetting subsequently applied shear stresses so as to negate peeling failure forces. The joint loadings are sustained with a mechanical interlocking, making the use of an adhesive optional.

Abstract: A tumbling unit such as a casting shake-out unit, rotary media drum, sand reclaimer or the like, is provided. The tumbling unit includes a cylindrical outer shell and a cylindrical inner shell. The inner liner is formed of a series of interfitting segments. The segments each have an inner surface, an outer surface, side edges, a front edge, a back edge, and rifling extending from the outer surface. The side edges of the segments have a groove formed therein which extends the length of said the edges. The grooves of neighboring segments define channel between the segments. The pin is received in the channel to urge the neighboring segments apart to form a tight interfit among the segments in a row of the liner. The retaining pin has a body having side surfaces, a top surface, and a bottom surface. A rib extends along each side surface which is shaped and sized to be received in the grooves of the neighboring segments. An arm extends upwardly from the pin body top surface.

Abstract: A ceiling fan bracket has a first end connected to a ceiling fan blade and a second end of the ceiling fan bracket has two L-shaped wings. A connector is connected to the second end of the ceiling fan bracket and has two tongues. A motor casing has a plurality of L-shaped holes and each L-shaped hole includes a wide portion located close to a center of the motor casing and a narrow portion located close to a periphery of the motor casing. Each wing is engaged with the narrow portion of the L-shaped hole and each tongue is engaged with the wide portion of the L-shaped hole. The eccentric force applied to the ceiling fan bracket secures the ceiling fan bracket to the L-shaped hole in the motor casing.

Abstract: An outer container having a container insert therein for holding a predetermined volume of material. The outer container includes a container bottom having a periphery and a container wall extending generally upwardly to define an interior container portion of predetermined volume sized to accommodate the container insert. The container wall includes a neck portion complementarily sized to accommodate the exterior surface of the container insert. The container insert includes a bottom having a periphery and a wall extending generally upwardly to define an interior portion of predetermined volume for holding the material. The insert wall-includes a vent which allows air to pass from the interior container portion to the atmosphere when the container insert is positioned therein. For assembly, the outer container is maintained at a temperature greater than the container insert and the container insert is positioned therein.

Abstract: An apparatus retains and aligns an electrical ignition switch of a motor vehicle with respect to a steering column housing. A switch housing supports the electrical switch and has at least one first aperture formed therein. The steering column housing slidably receives the switch housing therein, and the steering column housing has at least one second aperture formed therein. At least one locking member is engagable within the first aperture and is moveable between a first position retracted within the aperture and a second position extended outwardly with respect to the first aperture. The locking member engages within the second aperture when the switch housing is slidably engaged and fully seated within the steering column housing and holds the switch housing with respect to the steering column housing when engaged within the second aperture. A biasing member urges the locking member toward the second position.

Abstract: A shaft coupling for connecting two shaft ends to transmit torque. Each shaft end has a recess or a projection. A projection on one shaft end projects into the recess in the other shaft end and their cooperating side walls transmit torque. A centering device at one shaft end cooperates with a centering device on the other shaft end for axially aligning the shaft ends. These may be a cylindrical projection one shaft end and a corresponding recess in the other shaft end. Alternatively, the centering devices are recesses in both shaft ends and a pin that extends into both of the centering recesses. Applied elastic material on at least one of the centering device elements enables secure attachment between the shaft ends.

Abstract: An angle bracket for joining two section bars has a relatively great stability, especially for use for partitions and safety walls. This stability is achieved by supporting walls that join the two legs of an angle bracket to one another and have an outwardly rounded outside contour. This design is relatively simple and inexpensive to implement and allows these angle brackets to be compatible with known designs.

Abstract: A self-clinching fastener that when pressed into a thin sheet panel provides for a strong attachment point for a cable tie. The inventive fastener relies on the self-clinching process to carry external loads and thus carries larger loads when compared to adhesive backed cable tie mounts. When installed, the self-clinching fastener becomes flush with the far side of the sheet panel.

Abstract: A tubular structural part made of composite material such as carbon strand reinforced epoxy resin is provided with an elongated flat area along the outer surface of the tubular part to avoid cracking of the part when the part is telescopically engaged with and clamped in an outer tube part. The flat clamp side area of the inner tube part prevents contact between the facing edges of an elongate split in the outer tube part which are drawn together during clamping so that the edges of the outer tube part are prevented from coming into contact with and thus gouging the outer surface of the composite tube causing cracks and eventual structural failure of the inner tube.

Abstract: The invention provides a sinker bar for use with a hydrocarbon well apparatus connected to an operating cable through a cable head. The sinker bar includes a bar provided with a longitudinal slot. This slot is adapted to permit lateral engagement of the bar onto the cable, and to connect at one of its ends at the cable head. The bar may also be adapted to connect at its other end to a fishing head. The connection may be twist locked. The invention is applicable in particular with production logging apparatus.

Abstract: Flexible loop assemblies for use variously as key chains, paper ring binders, or as jewelry and a connector for use in such loop assemblies. The connector includes elongate cylindrical mating male and female connector halves each having respective end bores into which opposite ends of a flexible member of monofilament or multi-filament metal or plastic are secured. The male connector half includes a generally cylindrical front plug with a radially-inwardly compressible lock ring of slightly larger uncompressed outer diameter than that of the plug. The plug closely fits into a mating cylindrical socket bore in the female connector half which radially compresses the lock ring during insertion of the plug therein. An annular lock ring groove inside the socket bore is configured to receive the outer portion of the lock ring which lock ring radially expands therein to removably retain the male and female connector halves together.

Abstract: An outer member and an inner member are drivingly connected at a toothed interface. The members are restrained from axial separation by a retaining ring. The retaining ring is engaged in a groove formed in the inner member and has a pair of tabs which extend radially outward through slots in the inner member. The tabs abut an end face on the outer member thereby preventing relative axial displacement of the inner and outer members.

Abstract: A joint between a first and a second joint partner where each joint partner has at least one flat, cylindrical surface section via which force is applied to the other joint partner. The joint partners being brought into contact with one another in a sliding fashion such that the flat, cylindrical surface sections of the joint partners partially overlap and form a common bearing surface in the contact region. The flat, cylindrical surface sections of the joint partners are each bonded on one side by an undercut and the joint partners are joined such that the common bearing surface of the joint partners is bounded in one direction by the undercut of the first joint partner and in the opposite direction by the undercut of the second joint partner. This arrangement allows zones of maximum stress gradient to be shifted into the region of the undercut structures and for crack-opening, surface-parallel stresses to be substantially avoided.

Abstract: An unthreaded attachment of a joint eye to the piston rod of a vibration damper or spring strut, particularly by resistance welding. The piston rod and joint eye are held by one clamp electrode each, and the axial force created during welding is absorbed by a stop. A positive-locking connection is arranged between the piston rod and the clamp electrode to achieve axial fixing, so that joint eye can be attached in any installation state of the damper, even when the vibration damper is already installed.

Abstract: In an articulated sequence or array of ground-reinforcement panels, each panel has parallel rectilinear edges, one of them provided with a number of male interlock members projecting therefrom in the plane of the panel and the other provided with a corresponding number of female interlock members recessed therein, so constructed and arranged that the male members can be forcibly but detachably interengaged with the female members in a next-adjacent panel in a direction vertical to the plane of the panels but cannot be disengaged therefrom in the plane of the panels, while, when interengaged, the respective male and female members and the adjacent panels associated therewith are capable of limited rotation with respect to each other.

Abstract: A structure, for mounting a base (1) and a base cover (3) constituting a stay of an automobile door mirror, which corrects a deformation of the base cover (3), prevent a generation of an air-striking sound, and prevent an increase in thickness of the stay. Concave (10) are formed on the lower surface of the base (1) such that the concave (10) are positioned in the periphery of an mounting hole (9) and circumferentially discontinuous with each other. The base cover (3) has an opening (12) corresponding to a mounting hole (9) of the base (1) and a hook-shaped engaging part (15) erected along the circumference of the opening (12). A tip engaging part (14) of the engaging part (15) is formed with a thickness substantially equal to a depth of the concave (10) of the base (1). The base cover (3) has a first projection (16) circumferentially continuous relative to the base part (13).

Abstract: The present invention relates to a bonded assembly characterized in that a board having a convexed portion on a jointing surface thereof and a board having, on a jointing surface thereof, a concaved portion or a through hole to be engaged with the convexed portion are jointed with adhesives. Also, the present invention relates to a bonded assembly characterized in that an adhesive is coated on the portion other than the convexed portion of the board so that the coating thickness is smaller than the height of the convexed portion, and then the board is jointed to another board having a concaved portion or a through hole, after making alignment of the boards. Further, the present invention relates to a rivet having means for fitting to and temporarily fixing to an inserting through hole, and a method of jointing boards which comprises a step for inserting, fitting and temporarily fixing the rivet having the means for temporarily fixing to the inserting through hole on the board.