Abstract: A device for securing a display to a vehicle grill is disclosed, where the device includes a display holder that can hold license plates. The device includes a holder frame having a first end, a first side panel, and a second side panel, where the first end is configured to hold a display. A first hook and second hook are configured to engage a first portion of a front grill of a vehicle. Levers are connected to sliders and a handle bar connects the first lever to the second lever. The hook of the first slider and the hook of the second slider are configured to engage a second portion of the front grill of the vehicle. Together, the lower hooks and upper hooks lock onto the vehicle grill to secure the device with four points of contact in multiple locations.

Abstract: A device for emitting radiation includes a reflector component and a clip. The reflector component has a top side, a bottom side, and a perimeter side. At least one aperture formed within the reflector component that extends from a top opening on the top side of the reflector component through to a bottom opening on the bottom side of the reflector component. The clip may be connected to the reflector component and has a flat side that is in contact with the bottom side of the reflector component. Portions of the substantially flat side of the clip are configured to be soldered to a circuit board having an emitter which extends at least partially through the aperture when the clip is soldered to the circuit board.

Abstract: A camera module comprises: a lens barrel disposed in a front body and comprising a lens; a first substrate disposed under the body; a support member partially disposed on an undersurface of the first substrate; and a second substrate disposed under the first substrate and coupled to the support member, wherein the support member comprises: a fence portion disposed between the first substrate and the second substrate; and a hook portion which comprises a region extending from the fence portion and having a coupling hole into which a partial side surface of the second substrate is inserted, and an extended portion inclined at a predetermined angle with respect to the region having the coupling hole formed therethrough.

Abstract: A fitting for releasably connecting two furniture parts includes a first fitting part fastened on a first furniture part and a second fitting part fastened on a second furniture part. The second fitting part has at least one rigid latching cam which is engaged behind by a latching nose being provided on a deflectable latching tongue of the first fitting part. The latching tongue can be moved from its locking position engaged behind the latching cam, into a release position which can be fixed to the second fitting part. The latching tongue has at least one latching spring which can be deflected transversely to the deflecting plane of the latching tongue by a counter bearing of the second fitting part. The free spring end of the latching spring remains deflected by the counter bearing from the locking position until before the release position of the latching tongue is reached.

Abstract: A mainboard fixing device, a display module and a display device are provided. The mainboard fixing device includes a printed circuit board (PCB) mainboard, a first elastic member and a second elastic member. The first elastic member and the second elastic member are disposed at a first side and a second side of the PCB mainboard, respectively. The first side and the second side are symmetric with each other.

Abstract: A computing device fan mounting system includes a chassis, a fan housing, and a fan mount. The chassis includes a receiving opening. The fan housing defines a first opening and a second opening. The fan mount includes a first peg engaged with the first opening, a second peg engaged with the second opening, and a pin engaged with the receiving opening.

Abstract: An accessory hub joins accessories such as towel bars and robe hooks to a wall. In order to attach the accessory to the wall, a collet is fastened to the wall. The accessory hub may be joined to the collet with a spring-loaded button extending from the collet that is inserted into a receiver in the accessory hub. A first cleat portion on the collet mates with a second cleat portion on the accessory hub further securing the accessory hub to the collet. The accessory may then be attached to the accessory hub. The accessory hub may be detached from the collet without damaging the wall by depressing the button into the collet and disengaging the first and second cleat portions.

Abstract: A dock for a portable electronic device includes a base and a first arm supported by the base. The first arm includes a first hook coupled to an end of the first arm. The first hook is configured to engage a first edge of the portable electronic device. The dock further includes a second arm supported by the base. The second arm includes a side door movably coupled to an end of the second arm. The side door has a second hook configured to engage a second edge of the portable electronic device. The side door is movable between a first position, in which the portable electronic device is secured to the dock, and a second position, in which the portable electronic device is removable from the dock.

Abstract: A mounting system that includes a hub which is fixable to a surface to aid in hanging an object on the surface. The wall mount system allows for various applications depending on the item being mounted and/or the preference of the individual mounting the item. The hub is configured to support the use of disparate fasteners, affording a user flexibility to choose between various wall fastening options and combinations therein depending on the application.

Abstract: A circuit breaker and panel system includes a panel including a base pan having a plurality of base pan electrical connections. A circuit breaker including a housing having a plurality of circuit breaker electrical connections arranged to contact the base pan electrical connections when the circuit breaker is coupled to the base pan. The circuit breaker is rotatably coupleable with the base pan via a pivot joint for engaging the plurality of base pan electrical connections with the plurality of circuit breaker electrical connections per a predetermined electrical connection coupling sequence. One of the housing and the base pan includes a protrusion and the other of the housing and the base pan includes a corresponding recess which, when engaged with each other, retain the housing to the base pan to prevent reverse rotational movement of the breaker with respect to the base pan.

Abstract: An accessory hub joins accessories such as towel bars and robe hooks to a wall. In order to attach the accessory to the wall, a collet is fastened to the wall. The accessory hub may be joined to the collet with a spring-loaded button extending from the collet that is inserted into a receiver in the accessory hub. A first cleat portion on the collet mates with a second cleat portion on the accessory hub further securing the accessory hub to the collet. The accessory may then be attached to the accessory hub. The accessory hub may be detached from the collet without damaging the wall by depressing the button into the collet and disengaging the first and second cleat portions.

Abstract: Mounting systems for securing a solar array to a mounting frame and clamping systems thereof are disclosed. The clamping systems may include one or more hooks for connecting a solar panel module to mounting frame. The hooks may be disposed on one or more wings of a clamp plate that extend from a rail structure of the clamp plate. The rail structure may form a rail chamber which receives a mounting rail.

Abstract: A retractable support for a screen, and interior layout assembly for an aircraft cabin comprising such a support are provided. The retractable support for a screen includes a housing for receiving the screen in a retracted position, and an arm movably mounted relatively to the housing between a retracted position inside the housing and a deployed position outside the housing. The arm includes first and second rigid segments jointed with each other so that the second segment pivots relatively to the first segment around a first pivot axis between a compact configuration, in which the second segment is fitted into a recess of the first segment, and an extended configuration, in which the second segment extends out of said recess.

Abstract: A soap dispenser including a rigid cartridge, an inverted dispensing pump, a collar carrying a lever for actuating the pump, and a venting system for equalizing the air pressure in the rigid cartridge, wherein the rigid cartridge and the collar cooperate to removably attach the soap dispenser to a wall-mounted bracket, and further wherein at least the rigid cartridge is disposable and can be made of a recyclable and/or biodegradable material.

Abstract: A switchgear cabinet luminaire comprising illuminants on the basis of light emitting diodes, consisting of an elongated luminaire housing comprising housing main body and light-transmissive cover and electrical connection elements and means for fixing that are provided on the luminaire housing. The luminaire body is embodied in a trough-like fashion and a plurality of spaced-apart cutouts or recesses for releasably receiving a pivoting bearing carrier are provided on the underside of said luminaire body and/or in the side wall region. The pivoting bearing carrier has two side surfaces connected via a web, each side surface having a receptacle for a pivoting spindle. Arms are formed in a manner proceeding from the web and are oriented toward the underside or toward the side wall region of the housing main body and, at the free end of said arms, undergoing transition to a latching lug or to a latching hook.

Abstract: A display apparatus, including a chassis, a display panel provided on a first side of the chassis, a connection unit coupled to a second side of the chassis, the connection unit including a bracket link configured to connect to a stand, a rear cover provided on the second side of the chassis, the rear cover including a first through hole through which the bracket link extends to connect to the stand, and wherein the connection unit is configured to perform at least one of tilting and sliding of the chassis with respect to the stand by movement of the bracket link along the first through hole.

Abstract: An electronic device includes a housing and a fan. The housing has a fan-retaining structure including a base, two side walls and at least one elastic clamping unit. The two side walls are disposed on the base and respectively have a guiding slot and an elastic clamping unit. The two guiding slots and the base corporately define a receiving space. The elastic clamping unit has a top-blocking portion formed on one end thereof. The fan is selectively mounted in the receiving space along a longitudinal direction. As the fan is disposing into the receiving space, the top-blocking portion is propped up by the fan, and the elastic clamping unit is elastically curved outward. After the fan is disposed in the receiving space, the top-blocking portions and the base corporately clamp the fan, and the movement of the fan is restricted in the longitudinal direction and in a radial direction.

Abstract: A data storage device securing mechanism includes a rack and a securing module. The rack includes a shell and two side plates connected to the ends of the shell. The securing module includes a slidable bracket on the rack and a magnetic latching member. The bracket includes two magnets of opposing poles against two magnetic blocks, and the latching member is rotatably installed on the side plate. When the bracket is slid in the rack, the two magnetic blocks are displaced adjacent to the latching member, to attract or to repel the latching member. The latching member is thereby rotated to approach or to move away from the side plate.

Abstract: The present invention relates to a separate head-up display device, an adhesive paste set on a bottom side of the base of a display module is provided to adhere on a windshield, to reduce shakes that a reflective sheet of a reflective sheet adjustment module is fixed on the dashboard and the windshield, and rotary joint structures are further set between the display module and the reflective sheet adjustment module, so that a driver may easily adjust the direction of the reflective sheet to obtain an optimal viewing angle, to thereby improve driving safety.

Abstract: Disclosed is a supporting stand for a display device, which includes: a base; a frame body connected to the base for holding the display device and rotatable with respect to the base; an electrical function unit disposed within the base; and an electrical connection unit extending through the interior of the frame body to provide an electrical connection between the display device and the electrical function unit. The electrical connection unit includes a main cable that has a reserve section with a cable length larger than the corresponding minimal pathway distance. Accordingly, when the frame body rotates, the main cable can adjust itself to the rotation of the frame body by cable twisting at the reserve section.

Abstract: A ladder storage assembly for storing tools on a ladder includes a saddle that may be removably coupled to a top step of a ladder. A tray is removably coupled to the saddle. Thus, the tray is secured to the ladder. The tray may contain a plurality of tools thereby facilitating the tools to be accessible from the ladder.

Abstract: A fastener-holder apparatus is provided. The fastener-holder apparatus includes a fastening member; and a holder member movably connected to the fastening member. The fastener-holder apparatus may be attachable to a vehicle.

Abstract: A vibration isolating hard disk drive carrier for isolating the transfer of vibration from one hard disk drive to another comprising a carrier body and one or more isolation hangers is disclosed. The carrier has a first surface configured to couple to inherent features of a first external surface of a hard disk drive, and a second surface configured to couple to inherent features of a second external surface hard disk drive. One or more isolation hangers configured to support the hard disk drive in a vertical orientation are coupled to the carrier body.

Abstract: A wall mounting bath accessory assembly contains: a fixing mount and a base. The fixing mount includes an inner fence, an outer fence, two peripheral fences, and two through orifices. The inner fence faces to an external face of a wall, each peripheral fence has a flexible wing, and between two free segments of two flexible wings of the two peripheral fences is defined a movable portion. The fixing mount also includes a first locking portion, and the movable portion has a second locking portion opposite to the first locking portion. The base includes a first hooking portion and a second hooking portion, wherein the second hooking portion is hooked with the second locking portion of the movable portion.

Abstract: A mounting assembly to support a refuse container and mount the refuse container to a variety of objects. The mounting assembly includes a body portion extending along a first plane between a first end and a second end of the mounting assembly, a mounting portion extending along a second plane outwardly from the first plane, the mounting portion configured to be secured to a fixture, one or more support members at the first end of the mounting assembly, each of the one or more support members configured to couple to a corresponding portion of the container; and a retaining member at the second end of the mounting assembly, the retaining member configured to retain a fastening member that is to extend around at least a portion of an exterior perimeter of the container.

Abstract: A pinned plate assembly having a plate assembly and post assemblies. The plate assembly mounts onto headgear without affecting the integrity of the headgear by utilizing existing eyelets to receive the post assemblies therethrough. The plate assembly is made of a flexible and bendable semi rigid material that maintains its shape once configured. The plate assembly has an exterior face, an interior face, first and second edges, first and second lateral edges, and an advertisement band section mounted onto the exterior face. The advertisement band section displays desired first text, and/or first letters, and/or first symbols, and/or first words, and/or first logo designs, and/or first artwork, and/or first graphics. The interior face has two apertures with respective aperture frames disposed at predetermined distances from respective corners defined by the first edge and the first and second lateral edges to receive the post assemblies.

Abstract: A holding structure adapted to an electronic device is provided. The holding structure includes a base, at least one positioning assembly and a position-limiting component. The positioning assembly is disposed on the base. The position-limiting component is pivoted to the base. When the electronic device is placed on the base, the position-limiting component is pushed by the electronic device to move to a second position from a first position. When the position-limiting component is located at the second position, the positioning assembly positions the position-limiting component and the position-limiting component limits the electronic device at the base.

Abstract: A holding structure adapted to an electronic device is provided. The holding structure includes a base, a carrying component and a position-limiting component. The carrying component is pivoted to the base and adapted to carry the electronic device. The position-limiting component is pivoted to the base. When the electronic device receives a force to move toward the base and lean against the base with the pivoting of the carrying component, the position-limiting component is driven by the electronic device to move to a second position from a first position. When the position-limiting component is located at the second position, the position-limiting component limits the electronic device at the base.

Abstract: An improved mounting structure for keypads is provided. The mounting structure can include first and second frame members and first and second spring-loaded members. Respective first and second ends of the first spring-loaded member can couple a first end of the first frame member to a first end of the second frame member, and respective first and second ends of the second spring-loaded member can couple a second end of the first frame member to a second end of the second frame member. Each of the first and second frame members can include at least one mounting device for mounting a second device thereto, and each of the first and second spring-loaded members can include at least one affixation mechanism for affixing the apparatus to a third device.

Abstract: The instant disclosure relates to a monitor mounting apparatus for disposing on a working surface. The mounting apparatus includes a base, an adjusting unit, and a tilt bracket. The base is arranged on the working surface and has at least one guiding member. The adjusting unit includes at least one sliding member and at least one connecting member interconnected. The sliding member may be slidably arranged on the guiding member. The tilt bracket has an outer end portion and at least one connecting portion. The connecting portion is pivotally connected to the connecting member, and the outer end portion is defined on one end of the tilt bracket away from the connecting member. The tilt bracket may be oriented at various angular and vertical positions. The user may adjust the monitor mounting apparatus to suit the person's needs.

Abstract: A support assembly connected with a stud for securing and guiding conduit and/or cable is provided. The support assembly includes, but is not limited to, a securing arm for securing and guiding the conduit and/or cable and an engaging tab coupled with an end of the securing arm. The engaging tab includes a first engagement member facing a second engagement member, a side engagement member connecting the first and second engagement members together, and a first compressible member extending in a first direction D1 either from the first engagement member towards the second engagement member or from the second engagement member towards the first engagement member. The first compressible member is compressible in a second direction D2 opposite that of the first direction D1.

Abstract: A mount bracket includes a fixing frame, an installation unit, a movable member, a positioning member and a release member. The fixing frame includes a side wall and an end wall. The movable member has a first board movably connected to the side wall and a second board. The first board includes an engaging hole and a contact portion. The positioning member is fixed to the side wall and has an engaging portion. The movable member is movably connected to the first board. When in assembling, the contact portion and the second board contact the inside and outside of a post of a rack. The fixing frame is pushed toward the post to insert the installation unit into the holes of the post. The engaging portion of the positioning member is engaged with the engaging hole of the movable member to connect the movable member to the fixing frame.

Abstract: A slide lock to releasably secure a roller blind fascia to the end plate of a roller blind. The slide lock comprises a lock body slidably received along an interior surface of the fascia. The lock body has an engaged position, where the lock releasably secures the fascia to the roller blind end plate, and has a disengaged position, where the lock releases the fascia from the end plate to permit the fascia to be removed therefrom. The lock body includes a flexibly resilient leg member that releasably engages between the fascia and the roller blind end plate. The leg member includes a deflection zone such that when the leg member engages between the fascia and the roller blind end plate at least a portion of the leg member is compressed or deflected about the deflection zone to releasably secure the lock body between the roller blind end plate and the fascia, thereby releasably securing the fascia to the end plate.

Abstract: A mounting device for fixing an expansion card to a circuit board includes a fixing member and a latching member. Each of the fixing member and the latching member includes a supporting portion sandwiched between the circuit board and the expansion card, a post extending from the supporting portion extending through the expansion card, and a projection abutting a top surface of the expansion card.

Abstract: An anchor for lightning protection systems includes a base and pad that extend over a sufficient area and a sufficient bearing length to hold in shear and in tension against the weight, shear force, and moment of cables, points, and other components of a lightning protection systems. A universal point mount includes a head presenting greater cross sectional area and greater contact surface area than any other part of the mounting system. Drilled and tapped to receive a point oriented vertically, the head mounts easily on a horizontal or vertical mounting surface by receiving studs from a cleat plate (mandible) whose teeth capture the cable against a relief slot in the head. Apertures and studs provide rotating arbitrarily to any necessary orientation.

Abstract: A bracket for supporting and displaying a planar object comprises an elongated body member including a planar web and a front wall and a rear wall extending from the longitudinal edges of the web. An end wall extends transversely with respect to and engages the distal ends of the web, the front wall and the rear wall such that the web and the front and rear walls and the end wall define a longitudinal channel open at the proximal end and closed at the distal end for supporting the objects. A pair of arms extend rearwardly from the body member. At least one of the arms is resiliently deflectable for engagement and retention of the lugs in an aperture of a mounting substrate. During connection, lugs on the arms are adapted to engage the portion of the mounting substrate defining the aperture for moving the arms inwardly so that the lugs pass through the aperture for permitting the arms to move outwardly and the lugs to engage the mounting substrate.

Abstract: A fastening device (6) for detachably fastening a first component (4) to a second component (5), especially to a motor vehicle. A bearing block (7), which has a stay bolt (13), is fastened to one component (5). The bearing block (7) has an anchor bracket (8), which is fastened to the other component (4) and which has an anchor hook (15) for hooking onto the stay bolt (13). A locking device (16) is provided which can be adjusted between a locking state, in which anchor hook (15) can be hooked into and detached from the stay bolt (13), and an unlocking state, in which stay bolt (13) is fixed to the anchor hook (15) hooked into same.

Abstract: A holder for removably attaching a portable electronic device to an elongate support such as a tray table latch on a seatback with a stowable tray table comprises a clamp frame, a spring compression lever slidably attached to the clamp frame, a flexible band for suspending the clamp frame from the elongate support and a self-centering clamp for gripping opposite sides of the elongate support. The holder may optionally include a device adapter for attaching a selected electronic device. Another embodiment comprises steps in a method for holding a portable electronic device against a seatback having a stowable seatback tray table.

Abstract: A support structure for orienting and supporting at least one solar panel includes a lock rail and a support rail that are engaged together through a locking mount. The locking mount has a retaining pin that permits the locking rail to be connected to the support rail without tools. The locking mount may provide a permanent or a releasable connection that retains the solar panel to the support structure.

Abstract: Methods and systems for removably mounting a Solid State Drive (SSD) to a Printed Circuit Board (PCB) device without use of a tool. An exemplary system comprises a top portion and at least two flexible legs. Each leg comprises a vertical member attached to the top portion, and a tab for insertion into the PCB, the tab restricting the motion of the drive enclosure with respect to the PCB when inserted into the PCB, thereby allowing for removable attachment of the enclosure to the PCB without use of a tool. The drive enclosure itself is adapted to receive the SSD and adapted to align the SSD for physical coupling with a connector for the PCB.

Abstract: There is disclosed an improved support bracket for mounting a clutch of a roller blind. The clutch of roller blind used with this improved bracket is the type having at least one projecting pin. The support bracket includes a bracket housing having a flat wall with at least one aperture configured to receive the projecting pin such that the pin passes through the aperture and extends past the flat wall. The aperture is configured to permit the pin to slide up and down inside the aperture between a first and second position when the pin is positioned in the aperture. The bracket also includes a spring lock member mounted to the flat wall adjacent the aperture, the spring lock positioned to partially obstruct the aperture. The spring lock member is configured such that when the pin is inserted into the aperture the spring lock is deflected out of the way to permit the pin to be inserted into the aperture.

Abstract: A fixing device for use with at least one expansion card in a computer chassis includes a positioning member and a fixing member. One side of the positioning member defines at least one first slot. The fixing member includes a fixing portion and a rotatable portion rotatablely connected to the fixing portion. The fixing portion defines at least one second slot corresponding to the at least one first slot. When the rotatable portion is able to rotate to a position where the at least one first slot face to the at least one second slot, allowing opposite sides of the free end of the at least one expansion card.

Abstract: A cabinet structure assembly includes a cabinet, an attachment cover and an attachment member. The attachment cover includes a top wall portion. The top wall portion has an engagement recess with a first engagement face and an end part. The attachment member includes a base plate and a top plate. The top plate has a top face and an engagement protrusion that protrudes relative to the top face. The engagement protrusion has a second engagement face and a guide face. The second engagement face faces the first engagement face of the engagement recess. The guide face is arranged such that the guide face gradually deforms the end part of the top wall portion of the attachment cover away from the top face of the top plate upon installation of the attachment member relative to the attachment cover.

Abstract: A wall mounting bath accessory assembly contains a fixing member including an inner wall, an outer wall, and two side walls; the inner wall including at least one recess and a retaining fence; on a connecting corner of each side wall and the outer wall being fixed a first resilient lock block, and the first resilient lock block including a first arcuate projection; a base formed in a cover shape and including a groove in which an opening is formed so that the fixing member is received in the groove via the opening, the groove including two first positioning ribs, and each first positioning rib including a first engaging slot; the groove also including two second positioning ribs, and each second positioning rib including a second engaging slot formed on a top end thereof proximate to the opening.

Abstract: A hardware mounting bracket is provided with a bracket body adapted to be mounted to a support surface. A rigid retainer is provided on one end of the bracket body to receive hardware supported thereon. At least one elongate biasing retainer is provided on another end of the bracket body spaced apart from the rigid retainer, to engage hardware supported thereon and to provide a loaded surface contact with hardware supported thereon. A hardware mounting assembly, hardware for mounting to a support surface, and method for mounting hardware are also provided.

Abstract: A fore-aft adjustable vehicle seat formed of a plastic seat shell having an integrally formed latch handle recess molded into the shell that pivotally receives and retains a latch having a handle at one end and that is disposed in pivotal engagement with the shell at its opposite end. The latch is provided by an elongate bar that is spring biased outwardly into a slide plate engaging position that opposes fore-aft seat movement. A preferred latch handle recess includes a recessed latch seating channel integrally molded into the shell in communication with a latch receiver pocket integrally molded into the shell in which one end of the latch bar is pivotally received with engagement between the latch bar and shell defining a pivot about which the latch is biased by a coil spring outwardly toward a seat position adjustment opposing position where the latch bar releasably engages the slide plate.

Abstract: A fastening clip for attaching a component to a stud of a support part has a base part with an opening for accepting the stud. The opening has an axis and has a fastening region and an unlocking region located next to one another perpendicular to the axis. Resilient retaining means for holding the stud in place are arranged in the fastening region, which means are designed such that the stud can be introduced into the fastening region in the direction of the axis and the stud located in the fastening region can be displaced into the unlocking region by a relative movement of the stud and fastening clip perpendicular to the axis of the opening, wherein in the unlocking region the stud can be removed from the opening.

Abstract: A foldable fixing apparatus for fixing a hard disk drive includes a handle and two collapsible arms. The handle includes a sidewall. Each collapsible arm includes a fixing arm and a pivot arm. First ends of the fixing arms are rotatably connected to opposite ends of the sidewall. The pivot arms are rotatably connected to second ends of the fixing arms opposite to the first ends. When the pivot arms are pivoted to fold to the corresponding fixing arms, the collapsible arms are capable of being folded to the handle. When the fixing arms are rotated to be perpendicular to the sidewall of the handle, and the pivot arms are unfolded from, and aligned with, the corresponding fixing arms, the hard disk drive is capable of being mounted between the collapsible arms.

Abstract: A mounting bracket includes an end plate perpendicularly extending from a side plate and having an elongate hole. A pin assembly includes a pin, a protrusion and a fixing member, wherein the pin is connected to the protrusion and contacts the end plate. The protrusion is located in and movable in the elongate hole. The thickness of the protrusion is larger than that of the end plate. The fixing member includes a head and a shank extending from the head. The shank connects the pin and the protrusion. By this arrangement, the fixing member and the pin clamps the protrusion to be movably engaged with the elongate hole. The pin is adjustably moved in the elongate hole by the protrusion in the elongate hole of the end plate.

Abstract: An improved mount for, and method of mounting an, optical structure is provided. The mount has a protruding member extending from a surface of the optical structure, a base element having a mounting structure for mounting the mount to another structure and an upper element extending from the base element having a first opening extending therethrough for receipt therein of at least a portion of the protruding member. The first opening defines first and second arms, each of the arms comprising a head portion and each of the head portions ending at an end. A second opening in the upper element extends through one of the head portions and the end thereof in a direction toward the other head portion, while a third opening exists in the upper element through the end of the other head portion in an orientation substantially opposite to and in communication with the second opening so that a tightening mechanism received through the second opening can be received into the third opening.