Abstract: A fitting part for tool-free fastening in a bore in a panel includes a radially outwardly expandable expansion sleeve for insertion into the bore and a fitting housing, which is mounted in the expansion sleeve so as to be rotatable about an axis of rotation between a starting rotary position and a final rotary position, has a lever arm which is arranged outside the expansion sleeve and has a latching device, and has an expansion contour which is arranged inside the expansion sleeve and, upon rotation of the fitting housing in the expansion direction of rotation from the starting rotary position to the final rotary position, expands the expansion sleeve radially outwards.

Abstract: In a clip, a lock pin has a pair of locking portions and a pair of pinching portions. The locking portions are arranged so as to face each other in an opposing direction orthogonal to an insertion direction to the lock pin hole, each engage with the clip body to lock the lock pin to the clip body, and elastically deform toward a side that brings the locking portions close to each other to release engagement. The pinching portions extend toward an opening side of the lock pin hole and toward the side that brings the locking portions close to each other, are arranged so as to be offset from each other in an offset direction orthogonal to the insertion direction and the opposing direction, and are pinched by a tool from outside in the opposing direction so as to become close to each other together with the locking portions.

Abstract: The anti-theft device for securing an electronic gadget against theft. A security sensor is attached to a rear surface of the electronic gadget. The security sensor is electrically coupled to the electronic gadget via a cable. A security software application is deployed on the electronic gadget. The security sensor is configured to transmit predefined security signal to the electronic gadget. The security application is configured to detect the predefined security signal. Responsive to detecting a security event, the security sensor stops transmitting the security signal. The security application is configured to transition the electronic gadget into an alarm state if the security application fails to receive the security signal.

Abstract: An embodiment hook assembly for a door curtain to be installed on a door panel of a vehicle, the hook assembly includes a hook body installed to penetrate a through hole formed in the door panel, and a hook pin having an upper end hinge-connected to an upper portion of the hook body, wherein in a state in which an upper portion of the hook pin is completely inserted into the hook body, a part of the hook body is in an opened state and the hook body is locked to a circumference of the through hole such that the hook body is fastened to the through hole.

Abstract: The present disclosure provides a cable tray assembly comprising a cable tray splice, first cable tray section, and second cable tray section adjacent the first cable tray section with both sections having a bottom wall. The cable tray splice couples to the bottom walls. The cable tray splice may include at least two fasteners and a splice body configured to engage adjacent cable tray sections. The fasteners are configured to couple the splice body to the adjacent cable tray sections and include a spring producing a biasing force against the splice body. The disclosure provides a method to form a cable tray assembly including positioning the two cable tray sections end-to-end, positioning a splice body on bottom walls of the two cable tray sections, inserting a fastener through aligned openings in the splice body and the bottom walls, and applying a spring biasing force to the splice body.

Abstract: A connecting element is provided for connecting an induction coil to a coil carrier of an induction cooking hob. The connecting element is made of an elastic material and formed as a single-piece part. The connecting element includes a first snap-fit portion connectable to a cut-out of the induction coil, and a spring portion arrangeable between the induction coil and the coil carrier, so that the spring portion provides a distance therebetween. The connecting element includes a second snap-fit portion extending opposite to the first snap-fit portion. The second snap-fit portion is connectable to a cut-out of the coil carrier.

Abstract: In an attachment structure of a wiring member, the wiring member and an attaching target member are attached using a convex-shaped part, a concave-shaped part, and an elastic deformation part. When the convex-shaped part is inserted into the concave-shaped part upon receiving force toward a first direction, the elastic deformation part is elastically deformed by the force toward the first direction to fit the convex-shaped part to the concave-shaped part. When the convex-shaped part is pulled from the concave-shaped part upon receiving force toward a second direction opposite to the first direction, the elastic deformation part is elastically deformed by the force toward the second direction in a direction similar to the case of receiving the force toward the first direction, and releases the fitting state of the convex-shaped part and the concave-shaped part.

Abstract: A sun visor holder includes a base portion and leg portion. The leg portion includes a first wall portion and a second wall portion that are vertically disposed from the base portion and face each other. The first wall portion includes a first engaging piece provided with a release portion. The second wall portion includes a pair of second engaging pieces whose base end portions are connected to a tip end side of the second wall portion, and a vertical wall that is disposed between the pair of second engaging pieces and extends in a vertical direction of the second wall portion. Groove portions that extend in the vertical direction of the second wall portion and thin the second wall portion are formed on the second wall portion between each of the second engaging pieces and the vertical wall.

Abstract: A headband for securing eyeglasses on the head of a wearer may include a pair of cords secured to the temple arms of the eyeglasses. Distal ends of the cords may form end loops that fit over the temple arms and movably attach the headband to the temple arms for positioning the eyeglasses on the head of the wearer. Slide connectors may be manipulated to position and tighten the end loops of the pair of cords about the temple arms.

Abstract: A sealing plug that is configured to seal a hole in a panel. The sealing plug comprises a plug body, at least two holding arms and a sealing portion. The plug body has a central axis and a support portion arranged around the central axis. Each of the at least two holding arms extends downward from the bottom of the support portion of the plug body and has a holding portion. The holding portions extend obliquely downward in a direction away from the central axis. The sealing portion is arranged on an outer edge of the support portion of the plug body. The sealing body is made of a metal material, and the sealing portion is made of a material with a melting point lower than that of the metal material.

Abstract: A connector pin includes a stem extending between a head and an opposite foot. The stem includes a neck having a plurality of sections which may be planar forming edges. A retention member including a collar and arms extending therefrom is retained around said pin, the inner surface of the collar correspondingly configured to the sections and edges of the neck for a frictional fit. The pin is insertable and retained within a receiver in overlapping mats. Pockets in the receiver hold the retention member arms and prevent rotational motion of the retention member. The pin is selectively movable relative to the retention member by rotational motion by application of force to the pin sufficient to overcome the threshold level of friction holding the sections of the neck at the collar. Locking the pin is achieved when extension members of the pin foot are misaligned with the retention member arms.

Abstract: A fastener includes a head configured to be anchored to a part, and a locking member extending from the head to a distal end. The locking member has at least one protrusion spaced from the head, and a tool engaging head at the distal end. In use, the locking member extends through an opening of a panel such that the head is retained on a first side of the panel, the distal end is disposed on a second side of the panel, and the at least one protrusion abuts the second side of the panel to secure the panel to the fastener. The fastener includes a resiliently deformable portion arranged such that rotation of the tool engaging head deforms the resiliently deformable portion and moves the at least one protrusion out of abutment with the second side of the panel to release the panel from the fastener.

Abstract: A fastener for coupling a first component to a mounting hole of a second component. The fastener includes a central body portion, a head portion, provided at the proximal end of the central body portion. The fastener has at least two resilient ribs, protruding radially outward from an outer surface of the central body portion. The fastener includes at least a first pair of diametrically opposed recessed surfaces, provided at the proximal end of the central body and extending axially between the head portion and a respective shoulder portion formed by each one of the first pair of recessed surfaces. The at least two resilient ribs extend along the outer surface of the central body portion in a direction along the central axis between the distal end and the proximal end, and axially past the respective shoulder portion.

Abstract: A grommet is provided including a grommet body made of rubber-like elastic material and to be mounted on a mating component, and a center shaft configured to secure the grommet body on the mating component. The grommet body includes a cylindrical insertion portion to be inserted into a mounting hole formed on the mating component, a folded catcher formed on the leading end of the insertion portion, an umbrella-shaped head formed on the rear end of the insertion portion, and a groove-like release space defined on the inner circumferential surface of the insertion portion. The center shaft includes a shaft to be inserted into the inner circumference of the insertion portion, a folded catcher formed on the leading end of the shaft, and a head formed on the rear end of the shaft.

Abstract: A mounting system for mounting a solar panel assembly to a base assembly includes a panel support bracket, a base bracket and a clamp configured to exert a compressive force to hold the panel support bracket and the base bracket together. The clamp comprises a V-shaped clamp body that includes a pair of legs that are spring-loaded to oppose an approximation of the legs by an external compressive force. The clamp includes a pair of receiver slots, with each of the pair of receiver slots located on a corresponding one of the pair of legs. The pair of receiver slots collectively provides a clearance to admit the panel support bracket and the base bracket when the legs are compressed together.

Abstract: A fastening apparatus for fastening a component to a carrier component includes a housing device having a receiving recess, at least one actuating element and at least one latching element for latching in a carrier component, and a pin device which can be arranged so as to be displaceable in the receiving recess of the housing device in an assembly direction and which has at least one movable pin arm with a pin latching structure for transmitting an assembly force, which acts in the assembly direction, to a rigid housing latching structure which is integrally formed on the housing device, in order preferably to arrange the fastening apparatus in an intermediate assembly position, wherein the housing latching structure is formed in a corresponding manner to the pin latching structure, and wherein the actuating element is designed to actuate the at least one pin arm.

Abstract: A cooling apparatus having a compartment for storing products to be cooled and one or more tubes and/or wires connected to the compartment. A connecting element secures the tubes/wires to a compartment wall. The connecting element has a base portion configured to connect to the compartment wall and a supporting portion for supporting the tubes/wires. The supporting portion has first and second arms protruding from the base portion and defining a seat configured to receive the tubes/wires. The supporting portion has at least one elastic traverse member protruding from the first arm and/or the second arm towards the receiving seat. The elastic traverse member is configured to contact the tubes/wires that are inserted into the seat and secure the tubes/wires into the seat.

Abstract: The present disclosure provides a connecting structure and a display device, the connecting structure includes a base, a connecting rod, an elastic arm, and a clamping ring. The connecting rod includes two ends, the connecting rod defines a guiding groove between the two ends; the base is fixedly connected to one end of the connecting rod; the connecting rod defines a guiding groove between the two ends, the elastic arm is fixedly connected to the other end of the connecting rod; the clamping ring is sleeved on the elastic arm; the clamping ring defines a clamping component, the clamping component is received in the guiding groove, the clamping component moves in the guiding groove under an action of an external force, allowing the clamping ring to reciprocate along a direction of the guiding groove; the clamping ring is capable of moving to generate a force on the elastic arm.

Abstract: An accessory for eyeglasses that functions as a combined hearing aid and/or eyeglasses retention device which can maintain housings of behind the ear (BTE) hearing aids in place on a user's ears. The combined hearing aid and/or eyeglasses retention device can also maintain eyeglasses from slipping down the nose of a user which also maintains the device at its optimal position to retain housings of BTE hearing aids in place. The combined hearing aid and/or eyeglasses retention device also prevents displacement of BTE housing(s) off a user's ears when a user removes a mask. The combined hearing aid and/or eyeglasses retention device can also be a ‘standalone’ eyeglasses retention device when a user does not wear BTE hearing aids.

Abstract: This disclosure relates to the use of anmornamental elastomeric earring back fastener comprised of silicone, silicone rubber or rubber wherein the earring back fastener is without any hole which can receive an earring post in order to support an earring to an earlobe. The earring backing can may include sphere, square, rectangle rhombus, or other ornamental shapes. The hardness of the earring backing may vary between 10 shore A to 90 shore A, but 20 shore A to 40 shore A is preferred.

Abstract: A seal assembly that seals opening in the wall of a blood vessel has a first sealing element for placing inside the lumen of the blood vessel and to engage the interior wall surface, a shaft integrally formed with the first sealing element and fixed in a predetermined configuration relative to the first sealing element, an outer floating element slidingly movable along the shaft; and a second sealing element, the second sealing element slidingly movable relative to the first sealing element along the shaft to engage the outer floating element and position the outer floating element against the exterior surface and the first sealing element against the interior surface of the blood vessel to seal the opening in the blood vessel.

Abstract: A side sill for a vehicle includes: an inner portion facing an interior space of the vehicle; an outer portion facing an exterior space of the vehicle; and mounting hardware, which is riveted to one of the inner portion and the outer portion, wherein the inner portion and the outer portion form a unitary one-piece structure.

Abstract: A biodegradable device for maintaining the alignment of the edges of a trocar defect, consisting of two bases coupled and offset by a connector. The first base to be positioned below the defect and a second base above. The first base has a threaded hole from its upper surface but not through the lower surface. The connector attached to the bases such that there is a hole aligned with the threaded hole in the first base allowing a device to mate with the threads in the first base. The second base has a hole aligned with the hole in the connector and wide enough to allow a device to mate with the threads in the first base. The device is arranged so the distance between the lower surface of the second base and upper surface of the first base holds the fascia around the trocar defect.

Abstract: A cable bracket includes a base, first and second plates extending from a first side of the base, and an arm extending diagonally from an upper end connected to the first plate at a position away from the base. The arm extends to a lower end positioned toward the base intermediate the first plate and the second plate, and the lower end of the arm is not secured to the base. The arm is of made of a semi-rigid material such that the arm can be deflected from a neutral position by a user in order to insert a cable between the arm and the second plate. A dual-sided bracket may be formed by including one or more plates and arms on both sides of the base. A dovetail connection may allow multiple cable brackets to be coupled in series. Two brackets may also be coupled utilizing an intermediate slider.

Abstract: A connector (1) for fastening a first component (100) to a second component (200) of a motor vehicle, includes a bearing collar (10) for bearing against the first component (100), a crossbar (20) having one or more upper bearing surfaces (21.1, 21.2) for bearing against the second component (200) and for bracing the second component (200) against the first component (100) in a rotated final assembly position, a shaft portion (30) for passing through corresponding apertures (110, 210) in the components (100, 200), and fastening means (40) for fastening the connector (1) to the first component (100) in a preassembly position. A rotation-blocking device (50) is configured to block rotation of the connector (1) in relation to the first component (100) in the preassembly position and only to release said rotation when the connector (1) has moved from the preassembly position in the direction of the final assembly position.

Abstract: A watercraft fin removal tool for facilitating the removal of a detachable fin coupled to a watercraft body. The tool comprises an elongate body having a fin engagement head at one end and a handle at an opposing end. In use, the head is configured to engage the fin such that a sufficient leverage force may be applied to the fin by the user at the head via the handle to detach the fin from the watercraft body. In the preferred embodiment, the tool is designed for the removal of detachable surfboard fins. But, it may also be configured to remove fins from other watercrafts, such as wakeboards, paddleboards and the like.

Abstract: A flexure is disclosed for accommodating misalignments in an assembly. The flexure can include a first portion, a second portion, and a flexible portion coupling the first portion and the second portion to one another. The flexible portion can facilitate relative movement between the first and second portions in a plurality of degrees of freedom. The flexure can further include one or more stops operable to limit relative movement between the first and second portions in at least two of the plurality of degrees of freedom.

Abstract: A fixing structure for heat dissipation assembly includes a base and multiple female fastener holders. The base has at least one through bore axially extending through an upper and a lower surface thereof, as well as coupling holes located outside the through bore and respectively having an engaging element disposed therein. The female fastener holder has a lower side formed with coupling protrusions corresponding to the coupling holes. The coupling protrusion has a guiding groove radially provided thereon and having a lower and an upper end recess for engaging with the engaging element in the corresponding coupling hole. The engaging elements in the coupling holes are guided by the guiding grooves to move from the lower to the upper recesses when the female fastener holder is turned relative to the through bore and the coupling holes on the base, bringing the coupling protrusions to axially insert into the coupling holes.

Abstract: A mold for production of cast parts, having two mold parts in the form of mold plates, which mold parts arc movable with respect to each other from an open position into a closed position, wherein the mold parts in their closed position define a mold cavity which may be filled with liquid casting compound and in their open position enable removal of a cast part which has solidified by at least partial cooling, and are lockable in their closed position by a locking device which joining the two mold parts so as to be releasable, and which mold parts may also be swung, wherewith in the closed position the locking device produces the locking of the mold plates with the stipulation that the locking pressure is maintained. The locking device has an energy storage means with a gas pressure spring for maintaining the closing pressure which presses the mold plates together after they have initially been pressed together.

Abstract: A vehicle seat includes a seating portion and a seat shell coupled to the seat portion to swivel. The seat shell is coupled to the seating portion by a fastener.

Abstract: An inner housing defines a pin retaining receptacle elongated in an X-direction with entry ramps extending parallel to the X-direction. The inner housing is slidably coupled to an outer housing for movement in a Y-direction. The outer housing has an enclosed interior defined by outer housing walls extending from an outer housing flange. Resilient retention wings can extend outwardly from the outer housing walls without providing adjacent openings therethrough to facilitate water resistance. A water resistant seal is positionable between an outer housing flange and a first component to seal therebetween when the outer housing is coupled to the first component by the retention wings. Centering blades extend between the inner and outer housings to initially locate the pin retaining receptacle in a central position within the interior in a Y-direction and the centering blades are movable during insertion of the pin into the pin retaining receptacle.

Abstract: A product display assembly includes a floor and a divider. The floor is configured to support a product. The divider is configured to selectively engage the floor such that the divider extends in a longitudinal direction. The divider includes a body portion and a proximal leg. The proximal leg is movable with respect to the body portion in a longitudinal direction between a first position where the proximal leg engages the floor and a second position where the proximal leg is free from engagement with the floor.

Abstract: A method for maintaining the alignment of the edges of a trocar defect by inserting into a defect a device for compressing the tissue such that part of the device is above while the other is below the defect, then pulling back on the device so that the part below the defect is up against the defect, then while holding the device below the defect in place, push down on the part above the wound so that it compresses the tissue. Finally, release the device from the insertion tool.

Abstract: A composite laminate for connection to at least one attachment component in a load-introduction joint, said composite laminate comprising an opening that is adapted to receive a load-introduction component of said load-introduction joint, wherein a prefailure indication element is provided in the region of said opening, said prefailure indication element being modifiable by said load-introduction component in a prefailure mode of said load-introduction joint for indication of an impending function-affecting failure of said composite laminate. The invention is further related to a corresponding load-introduction component.

Abstract: A fastener comprising a body having a first portion and a second portion is provided. The first and second body portions are adjustably connected such that the distance between the first body portion and the second body portion is adjustable along a longitudinal axis of the body. A first flange is arranged on the first body portion and a second flange is arranged on the second body portion. A locking mechanism is provided for securing the first and second body portions together while permitting adjustment of the distance between the first and second body portions in the direction of the longitudinal axis.

Abstract: A fastener comprises a housing, a socket, a pintle and a locking feature. The housing includes a shaft, a central bore that extends axially at least partially through the housing and a ball lock aperture extending from the bore. The socket extends into the housing adjacent to the first end face, and is configured such that rotation of the first socket rotates the fastener. The pintle is positioned within the bore and includes an actuation end and a rod that extends axially from the actuation end. The rod includes a ball transitioning surface and a ball locking surface. The pintle is moveable axially within the bore between a designated lock position where the ball locking surface of the pintle is aligned in register with each ball lock aperture, and a designated unlocked position where the ball lock surface of the pintle is moved axially away from each ball lock aperture.

Abstract: A cam lock system for an air intake filter housing is provided that includes a clevis rod adapted for connection to a bolt on the air intake filter housing; a cam handle; a filter clamp coupled to the cam handle, the filter clamp having one or more cam surfaces thereon, the cam handle and filter clamp pivotally connected to a first end of the clevis rod; a spring carrier disposed at the second end of the clevis rod; and a spring disposed on the clevis rod and restrained between the spring carrier and a washer disposed on the clevis rod. The cam surface engages the washer and pivotal movement of the cam handle and filter clamp causes compression of the spring via the washer to provide clamping force to secure an air filter element in the air intake filter housing.

Abstract: Disclosed herein are embodiments of devices and methods for forming a seal covering an incision in tissue. In some embodiments, a deformable member can be loaded into a catheter and inserted into the tissue incision. The deformable member can unfold into a cup-shape which can form a seal around the incision during a procedure. Once the procedure is finished, the deformable member can be drawn back into the tube.

Abstract: An information handling includes a plunger that secures a server planar board within the information handling system. The plunger includes a nut, a body, a rod, and a cap. The nut tightens toward the body and holds the server planar board between the nut and the body. The rod securely holds the server planar board within the information handling system in response to the plunger being in a locked position, and enables the server planar board to be removed from within the information handling system in response to the plunger being in an unlocked position. The cap includes a handle to provide a surface for a force to be exerted to cause the plunger to move from the locked position to the unlocked position.

Abstract: A mounting system mounts an accessory to a body member of a vehicle. The body member defines an opening and includes a base inserted into the opening. The mounting system includes a hook-shaped first engagement feature engaging the body member and a base aperture. A clip is disposed within the base aperture and the body member defines a second engagement feature. The clip includes two pairs of legs connected at a top portion of the clip, and two flexible tab members extending from the top portion of the clip biased outwardly between the legs into engagement with the inner edge of the body member. A cap includes a cap base and a plunger extending from a central portion of a first side of the cap base. The plunger abuts the flexible tab members, maintaining the flexible tab members in engagement with the body member.

Abstract: A locking system includes a casing, a covering component, a locking component, and a locking release component. The casing is to house a device in the casing having an opening. The covering component is to cover the opening of the casing. The locking component is to fasten the casing and the covering component to each other. The locking component includes a key receiving portion including a projection and a single recess. The locking release component is to engage with the key receiving portion of the locking component so that the locking component is rotated to release fastening between the casing and the covering component. The locking release component includes a releasing side recess to engage with the projection of the key receiving portion and a releasing side projection to engage with the single recess of the key receiving portion.

Abstract: A customizable bracelet or belt that has a matrix of evenly spaced holes all around the article. Inserts such as pegs, rhinestones, and charms are configured to be inserted through any of the holes and will be snugly secured inside the hole. In this way, a very large number of configurations can be designed by a user by using different combinations of the inserts. The configurations can be in a particular pattern, spell words, etc.

Abstract: A system for connecting a photovoltaic mounting rail onto a mounting post using a connection system with a pair of interlocking grasps having interdigitated fingers that can be locked into the mounting rail when moved by a fastening system.

Abstract: The disclosure provides a fan assembly for connecting the first fan to the second fan. The fan assembly includes at least one fastening member. Each of the first fan and the second fan includes a first flange and a second flange and a body interconnecting the first flange and the second flange, the fastening member includes a locating column and an elastic element. The elastic element is held between the first flange of the first fan and the second flange of the second fan, the locating column passes through the elastic element, the first flange of the first fan, and the second flange of the second fan, to connect the first fan to the second fan.

Abstract: Biased blind side fasteners and related methods for temporarily securing together at least two work pieces that each define a hole through which at least a portion of the fastener may pass. Fastener embodiments include an elongate, hollow case for substantially housing a generally cylindrical collet body and a bias element for urging the collet body into the case, and at least partially housing a central rod having a proximal end linked to a proximal portion of the case by a web element and a distal end extending from the case. Such embodiments further include a translatable plunger for temporarily overcoming the urging of the bias element and causing extension of the collet body away from the case, thereby permitting insertion of a fastener into the work pieces' holes, wherein the plunger is formed to substantially translatably pass through the web element.

Abstract: An installation for extending an electrical wiring into a junction box comprises an electrical bushing including a bushing body having an outer diameter corresponding to an inner diameter of an orifice in a junction box. A bushing bore extends through the bushing. A bushing collar terminates the bushing body. Exterior bushing threads are on the bushing body adjacent to the bushing collar. In a typical junction box installation, an end connector on a flex cord may be coupled to the bushing body, for instance by threading of the end connector onto interior bushing threads in the bushing body. The electrical bushing may be inserted through and secured in an orifice in a junction box by threading a nut on the exterior bushing threads. Accordingly, the electrical bushing prevents the end connector on the flex cord from inadvertently falling from the orifice in the junction box.

Abstract: A clip adapted to be connected to a connected member with a hole includes a base, an engaging section extending from the base, and an insertion section fixed to the engaging section at a side opposite to the base and adapted to be inserted into the hole of the connected member. The engaging section includes an engaging leg extending from the base, and having a first enlarged portion adapted to engage the hole of the connected member, and a beam formed near the insertion section to extend inwardly toward the center axis and connected to the insertion section, and a pair of engaging members extending from the base along the engaging leg and disposed perpendicular to the engaging leg so that the engaging leg is disposed between the pair of engaging members along a circumferential direction of the engaging section.

Abstract: Flexible retaining structures for body jewelry and method for their use.

Abstract: A device for sealing an aperture in a tissue includes: an implant configured to seal the aperture when positioned adjacent to the aperture; and a delivery shaft configured to engage the implant to allow the implant to be maneuvered into sealing engagement with a distal surface of the tissue, the delivery shaft comprising a retaining sleeve comprising a locking projection engagable with the locking recess of the implant to secure the implant to the delivery shaft, and a release sleeve axially slideable relative to the retaining sleeve between a first axial position in which the release sleeve is configured to maintain locking engagement between the locking recess and the locking projection, and a second axial position in which the release sleeve permits the locking projection to disengage the locking recess.

Abstract: A fastening member for fastening and unfastening at least two panel members includes first and second elastic arms. One panel member has a first surface. The other panel member has a second surface facing away from the first surface. Each panel member has a fixed through hole having at least a portion with a width (P1). Each elastic arm has first and second end edges respectively proximate to and relatively distal from the first surface. The first end edge has a width larger than the width (P1). A limiting arm extends from the first end edge of the first elastic arm, and includes a limiting portion that can extend through the fixed through holes of the panel members or move away from the second elastic arm when the elastic arms are pressed or released, respectively.