Abstract: The present invention provides a slide rail assembly with an easy-to-position and safe unlocking mechanism to avoid the risk of injury when operating the slide rail assembly of a server case.

Abstract: A slide rail assembly includes a first rail, a second rail, and an auxiliary member. The first rail includes a passage, and the passage includes a passage opening. The second rail is inserts in the passage from the passage opening through being guided by the auxiliary member.

Abstract: A disclosed apparatus may include (1) a retractable guide rail movably coupled to a chassis, wherein the retractable guide rail is configured to support a field-replaceable unit when the field-replaceable unit is installed in the chassis, (2) a support bracket coupled to the chassis and aligned with the retractable guide rail within the chassis and (3) a locking bracket movably coupled to the support bracket, wherein the locking bracket is configured to (A) engage the retractable guide rail in an expanded position within the chassis when the field-replaceable unit is not installed in the chassis and (B) disengage the retractable guide rail such that the retractable guide rail moves to a retracted position when the field-replaceable unit is installed in the chassis. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A synchronizing and locking mechanism of a server slide rail includes a middle rail installing structure, an operating plate, an outer rail locking structure and an inner rail synchronous locking structure. The middle rail installing structure is formed on the middle rail and includes an installing part and a through hole. The operating plate is installed to the installing part and has first and second elastic plates, and the first elastic plate has a middle/outer rail locking stop point, an inner rail releasing outer rail locking hook and a pull operation part, and the second elastic plate has an inner/middle rail synchronous stop point and a jack-up part. The outer rail locking structure is installed to the outer rail and includes an outer rail locking hole. The inner rail synchronous locking structure is installed to the inner rail and includes an inner rail locking hole and a synchronous hook.

Abstract: A slide rail assembly adapted for a rack includes a first slide rail, a fitting, and a second slide rail. The first slide rail is movable with respect to the rack between a first position and a second position. The fitting is configured to be mounted on the first slide rail and includes at least one guiding structure. The second slide rail is configured to be guided by the at least one guiding structure of the fitting while being outside a channel of the first slide rail and thus enter the channel.

Abstract: A sheet feeding apparatus includes a sheet storing tray for loading sheets, an apparatus main body to which the sheet storing tray is slidably attached, and a restriction mechanism that restricts a position of the sheet storing tray. The restriction mechanism includes an engagement portion provided in the apparatus main body and a stopper member that is provided in the sheet storing tray and engages with the engagement portion. The stopper member is configured so as to be movable in a crossing direction crossing a direction in which the sheet storing tray slides and determines a position in the crossing direction of the sheet storing tray with respect to the apparatus main body.

Abstract: A slide assembly includes a channel member including a stop recess having a front end and a rear end; a slide member including a sliding first portion, a sliding second portion, a slot, and a connection portion on the sliding first portion, the slide member being configured to move in the channel member; and a release mechanism disposed on the slide member and including first and second release member. In a locked state the first limit members of the positioning portion of the first release member engage with the front larger hole of the stop recess, the second limit members of the positioning portion of the first release member engage with the rear smaller hole of the stop recess, and the elastic arm of the second release member engages with the rear smaller hole of the stop recess. A double release mechanism is provided.

Abstract: Retractable soft-close shelf system and assemblies for use with appliance are provided. Shelf assembly includes a fixed shelf with a guide defining a support surface and a movable shelf slidably mounted to the fixed shelf. Movable shelf can be moved between an extended and a retracted position Support surface can include a front portion and a rear portion. Front portion is positioned at a first guide angle and rear portion is positioned at a second guide angle. Movable shelf includes a front boss and a rear boss on opposite sides of the movable shelf. Front and rear bosses are received within the guide and are slidably supported by the support surface. Shelf assembly includes a striker extending from the bottom of the movable shelf and a soft close mechanism. Soft close mechanism is configured to engage the striker when rear boss contacts the rear portion of the support surface.

Abstract: A slide rail assembly includes a first rail including a blocking member and a positioning member, a second rail including a predetermined feature, a working member and an operation member. When the second rail is at a first extending position, the blocking member is in a blocking state capable of blocking the working member so as to prevent the second rail from displacing along a retracting direction. The operation member is capable of being operated to drive the blocking member to leave the blocking state so as to allow the second rail to displace along the retracting direction. When the second rail is displaced from the first extending position to a second extending position along the retracting direction, the second rail is engaged with the positioning member through the predetermined feature so as to prevent the second rail from leaving the second extending position.

Abstract: A drawer glide mechanism can include a first elongate guide member, a second elongate guide member, a ball bearing component, a v-notch socket, a release mechanism, and/or a roller support. The first elongate guide member can include a distal end that is configured to fit within an opening in the v-notch socket. The drawer glide mechanism can further include one or more floating members and fixed members. In some cases, the drawer glide mechanism includes a release member configured to facilitate separation of the first and second elongate guide members when actuated and to inhibit or prevent accidental separation of the first and second elongate guide members.

Abstract: A cabinet is provided, which is adapted to receive a device. The cabinet includes a plurality of first pillars, a plurality of second pillars, a plurality of track units, and two sliders. Each track unit is bridged between one of the first pillars and one of the second pillars. The sliders are disposed on two sides of the device, wherein the sliders are slidably connected to the track units. Each track unit includes a first connection base and a track portion. The first connection base is disposed on one end of the track portion. The first connection base includes a first connection side, a first base side, and a second base side. The first connection side is located between the first base side and the second base side. The first connection side is connected to the first pillar.

Abstract: A refrigerator shelf assembly includes a frame having a depth and a first support element extending along the depth and defining a first track open in a lateral direction perpendicular to the depth. The support element further defines a first open area along a first side of the track and extending between an adjacent portion of the track and an exterior of the first support element and a cantilever arm having a free end adjacent the first open area. The cantilever arm is resiliently deformable away from a plane defined along the first side of the track. The assembly further includes an insert slidably received within the track and moveable along the depth of the first track through a fixed range of motion, wherein the insert is disposed over an expanse of the first open area.

Abstract: A refrigerator shelf includes a frame having laterally spaced-apart first and second side members, defining opposite first and second ends defining first and second portions of a front edge profile of the refrigerator shelf, respectively. A medial member extends between the first and second side members at respective locations between the first and second ends. A first substrate is received between the first and second side members, defines a first edge, and is moveable between an extended position with the first edge adjacent the first ends of the first and second members and a tucked position with the front edge spaced away from the first ends. A trim member extends along an edge of the second substrate and defines a third portion of the front edge profile that is aligned with and physically engages with the first and second portions when the second substrate is in the extended position.

Abstract: A household cooling appliance has a housing with a receiving space for food. A shelf bottom device is non-destructively releasably positioned in the receiving space. The shelf bottom device has a plate-like shelf bottom and a carrier unit that is separate therefrom. The carrier unit is connected with the shelf bottom and is configured for retention of the shelf bottom device in the receiving space. The shelf bottom device has at least one receiving element with a hollow space, which is arranged on the shelf bottom. In the mounted final state, the carrier unit is introduced at least partly in the hollow space.

Abstract: A slide rail assembly includes a first rail, a second rail, a mounting member, a third rail, a fourth rail and an engaging member. The mounting member includes a first part, a second part and a third part. The first part and the second part are connected to the third part and respectively extended along different directions. The third rail is connected to the first part of the mounting member, and the third rail is movable relative to the first rail. The fourth rail is connected to the second part of the mounting member, and the second rail is movable relative to the fourth rail. The engaging member is movably mounted to the mounting member. The engaging member is configured to allow the mounting member to be synchronously moved with the second rail along a predetermined direction.

Abstract: A sheet accommodating device includes a housing; a sheet accommodating portion configured to accommodate a sheet and detachably mountable in the housing, the accommodating portion including, a supporting member supporting the accommodating portion so as to be rotatable relative to the housing, a movable member movable relative to the supporting member along the supporting member, a first urging member urging the movable member in a moving direction of the supporting member, a regulating member movable in a direction crossing with the moving direction of the movable member, and a second urging member urging the regulating member so as to protrude it from the movable member. The housing is provided with an engageable member engaged with the regulating member.

Abstract: A device for fastening accessory parts to a furniture component of a piece of furniture comprises an accessory carrier having at least one mounting interface for fastening, without a tool, to the furniture component and at least one fastening interface for fastening accessory parts to the accessory carrier.

Abstract: A linear sliding structure of a laptop keyboard and cover case includes: a base member, a moving member, a sliding holder, a first resisting member, a second resisting member, and a ball. The ball is arranged in an accommodation portion of the sliding holder, such that two sides of the sliding holder where the ball is arranged come into contact with the base member and the moving member. The first resisting member and the second resisting member are respectively arranged at two ends of the base member to provide a resistance of an end position when the moving member undergoes a linear displacement. By way of the sliding holder where the ball is arranged, the linear displacement of the moving member extending toward one end is provided. A structure convenient for opening and closing is provided for the keyboard or the cover case.

Abstract: A drawer pull-out guide includes a first rail and a second rail displaceable relative to one another, and a running carriage with a rolling body. The running carriage is displaceably arranged between the first rail and the second rail over a travelling path. A limiting element is arranged on the first rail or on the second rail, and the limiting element limits the travelling path of the running carriage. A damping device is arranged on the running carriage for dampening a movement of the running carriage over a damping path when the running carriage abuts against the limiting element. At the end of a maximum damping path of the running carriage, a stop of the first rail and a counterstop of the second rail abut against each other and thereby stop a movement of the second rail relative to the first rail.

Abstract: A slide rail assembly for mounting a chassis to a rack is provided. The chassis has multiple mounting members on a lateral side. The slide rail assembly is mounted on the rack by two brackets and includes first and second rails, a first auxiliary supporting member, and multiple reinforcing segments. The first rail has first and second sides, wherein the first side has a concave space. The second rail can be displaced with respect to the first rail and has an inner side and an outer side. The first auxiliary supporting member is mounted in the concave space of the first side of the first rail. The reinforcing segments are fixedly mounted on the inner side of the second rail.

Abstract: A guide device for guiding a furniture part movable relative to a furniture body comprises: a guide unit including a body rail fixable to the furniture body; a sliding rail connectable to the movable furniture part and displaceably mounted relative to the body rail via a rail guide movable in a sliding direction, wherein the rail guide is mounted displaceably relative to the body rail and the one sliding rail and, when withdrawn to an open position, abuts against stops on the body rail and sliding rail; and a damper to damp the impact of the rail guide on at least one of the stops. The rail guide comprises at least two guide sections arranged behind one another in the sliding direction. The guide sections are connected to one another by a damping section that is flexible in the sliding direction and equipped with the damper.

Abstract: A slide rail assembly includes first to third rails and an engaging mechanism movably mounted on the second rail. The second rail is displaceable with respect to the first rail, and the third rail is displaceable with respect to the second rail. The three rails define a length when the second rail is displaced from a first to a second position in a first direction and the third rail, to a third position in the same direction, extending out of the second rail. Once the second rail is displaced from the second to a fourth position in a second direction, the length is reduced, and the second rail is kept at the fourth position by the engaging mechanism.

Abstract: A slide rail displacement positioning mechanism includes a slide rail assembly consisting of an inner slide rail and an outer slide rail, a stopper member affixed to the inner slide rail and providing a positioning gap between a frame body and an abutment component thereof, and a positioning member affixed to the outer slide rail and adapted for elastically biasing the abutment component upon a relative movement between the stopper member and the positioning member subject to the operation of the slide rail assembly, and thus, the positioning member can be positively stopped by the frame body to achieve relative positioning between the outer slide rail and inner slide rail of the slide rail assembly.

Abstract: A slide rail assembly includes a first rail, a second rail, a first engagement element, and a second engagement element. The first rail includes a first blocking part. The second rail is movably connected to the first rail. The first and second engagement elements are connected to the second rail. When the second rail moves relative to the first rail toward a first position, the first engagement element abuts against the blocking part of the first rail. When the first engagement element is operatively detached from the blocking part of the first rail, the second rail to is able to move relative to the first rail toward a second position from the first position. When the second rail is located at the second position, at least part of the second engagement element is adjacent to the blocking part of the first rail.

Abstract: A head-mounted electronic device and an audio processing method includes a fixing unit, by which the head-mounted electronic device can be worn on the wearer's head; a processing unit, provided in the fixing unit and configured to perform audio processing and output a first audio signal; a first bone conduction unit, provided on the inner side of the fixing unit, configured to generate vibrations according to the first audio signal, so that the wearer can hear the first audio through the generated vibration, wherein the inner side of the fixing unit is the side which is closer to the wearer's head when the head-mounted electronic device is worn on the wearer's head, and when the head-mounted electronic device is worn on the wearer's head, the first bone conduction unit contacts the wearer's head, so wearer can sense vibrations generated by the first bone conduction unit.

Abstract: An inner rail release device for a slide includes a holder, a pulling rod, a first shifting block, a second shifting block, a first elastic member, a second elastic member and a driving member. The holder, the pulling rod, the first shifting block, the second shifting block, the first elastic member and the second elastic member are installed on a surface of an inner rail, and the driving member is installed on a middle rail, and the driving member is disposed opposite to the first shifting block and the second shifting block. The invention improves the convenience of operation significantly.

Abstract: A variable shelf apparatus and a refrigerator having the same are provided. The variable shelf apparatus includes: a first shelf part; a second shelf part configured to have the first shelf part slidably coupled therewith; and a support part configured to be installed in a storage room to slidably support the first shelf part and rotatably support the second shelf part, wherein the support part is configured such that a pair of rotating protrusions protruding at both sides of the second shelf part is selectively coupled and separated between an upper surface and a lower surface of the support part.

Abstract: A slide rail assembly includes first and second rails, a running carriage, and a pushing member. The second rail can be longitudinally displaced relative to the first rail. The running carriage is slidably mounted to the first rail, carries the second rail, and can be moved together with the second rail in a differential manner with respect to the second rail. The pushing member is movably connected to the first rail and displaceable between a horizontal position and an inclined position. Should an error occur in differential movement of the running carriage, the pushing member is able to be driven by a portion of the second rail to displace from the horizontal position to the inclined position and hence displace the running carriage to correct the error.

Abstract: A slide assembly includes an outer slide segment, preferably at least one intermediate slide segment and an inner slide segment. An automatic closure arrangement applies a closing force to one or both of the inner and intermediate slide segments. In some configurations, a dampening arrangement dampens at least a portion of the travel of the slide assembly, such as the end portion of the closing travel of the slide assembly. The automatic closure arrangement can include two biasing elements, such as upper and lower constant force springs. The closure force of the constant force springs can be applied directly to the intermediate slide segment and the inner slide segment can be coupled for closing movement to the intermediate slide segment.

Abstract: An image forming apparatus which includes: a containing portion configured to contain a sheet on which an image is to be formed; a pair of guide rails facing in an up-down direction, the guide rails guiding a slide movement of the containing portion; an engaging portion provided in the guide portion that is guided by the guide rails; a first stopper which abuts the engaging portion so as to regulate removal of the containing portion from an apparatus main body; and a second stopper, wherein the first stopper is movable in a sliding direction.

Abstract: The slide rail unit according to an exemplary of the invention includes an outer rail attachable to a rack, a middle rail slidably supported by the outer rail along the extending direction of the outer rail, and an inner rail slidably supported by the middle rail along the extending direction of the middle rail. The inner rail includes a lock mechanism. The lock mechanism includes a release member which releases a press against the middle rail by the inner rail when the inner rail slides in one direction along the extending direction of the middle rail, and a suppression member which prevents the middle rail from sliding in the one direction.

Abstract: A slide rail includes: a rail assembly 2; an inner rail 4 mounted on the rail assembly 2, and slidable in a longitudinal direction of the rail assembly 2; and a locking arm 5 a rear end portion of which is secured to a surface of the inner rail 4 facing the rail assembly 2, and a front end portion of which is a free end, wherein the locking arm 5 has a lock protrusion portion 5a that, when pulling out the inner rail 4 from the rail assembly 2, locks slide at a predetermined position, and wherein the rail assembly 2 has a lock hole 2a for catching the lock protrusion portion 5a.

Abstract: A pull-out guide for a furniture part which is pulled out of a basic furniture structure having first and second guide rails, the second guide rail is mounted for displacement over a displacement distance, in and counter to a displacement direction. A braking action of the second guide rail is damped at least at one end of the displacement distance by a stop damper against which a mating stop element runs up. The stop damper includes a lever mounted for pivoting about a pivot axis on the guide rail on which the stop damper is arranged, and has first and second lever arms which can be flexed elastically for damping the braking action of the second guide rail. At a limit value for the pivoting action of the first lever arm, an overload-stop device takes effect and limits the pivoting action of the first lever arm about the pivot axis.

Abstract: A drive device for a movable furniture part includes a latching element which is movable in a slotted guide track shaped as a cardioid. The slotted guide track has a closing section in which the latching element moves during the closing of the movable furniture part, a locking section with a latching trough, in which the latching element is held in the locking position, an opening section in which the latching element is movable during the opening of the movable furniture part, and a first connecting section via which the latching element is movable from the opening section into the closing section when the furniture part is open. A second connecting section, which is formed closer to the latching trough, is located between opening section and closing section.

Abstract: The present invention relates to a system and method for continuous loading of consumables into an analyzer comprising a stacker unit which can be uncoupled from the transport system for transporting the consumables from the stacker to the analytical modules and within and/or between the analytical modules.

Abstract: A positioning apparatus for installing a server unit on a rack includes a frame fixed to the server unit, an operation member slidably installed to the frame, a pivot member sandwiched between the frame and the operation member, and a resilient member connected between the frame and the operation member. A rear end of the pivot member is rotatably connected to the frame, and a latching piece protrudes out from a front end of the pivot member. The pivot member defines a guiding slot. The frame defines a through slot aligning with the latching piece. The operation member includes a sliding pole protruding from the operation member and extending through the guiding slot. The resilient member biases the operation member to move, the sliding pole slides in the guiding slot to rotate the pivot member, and the latching piece extends through the through slot to latch onto the rack.

Abstract: In a device for releasably connecting a furniture pullout part movably guided in a furniture carcass by a guide unit to the guide unit, the device including a device housing on which a control element is integrally formed and pivotably mounted via at least one solid body joint in such a way that the connection between the furniture pullout part and the guide unit can be released on actuation of the control element, at a distance from the solid body joint, supporting surfaces are provided for supporting the control element while preventing a relative movement between this and the device housing.

Abstract: A pressure release slide latch mechanism for a drawer slide assembly comprises an outer slide, an intermediate slide mounted in the outer slide, and an inner slide mounted in the intermediate slide, a channel plate having a track portion and a guide block attached to the outer slide and a carriage slidingly engaged and biased along the track portion. A pin of a follower pivotally attached to the inner slide engages the guide block to releasably maintain the drawer slide assembly in a closed position and releases upon an inward force applied to the drawer slide assembly.

Abstract: A foil extension ball bearing drawer slide assembly comprised of a fixed member attached to a cabinet piece, a middle member slidingly engaged with the fixed member with a set of linear bearings, a drawer member attached to a drawer piece slidingly engaged with the middle member via a second set of linear bearings, and a drawer retainer mechanism attached to the drawer member and in adjustable contact with the drawer member. The drawer retainer mechanism is comprised of a housing attached to the drawer member, a piston slidingly fitted in the frame and biased by a biasing member. The piston, biased by the biasing member, is forced towards the housing by a raised indention in a race of the fixed member.

Abstract: In some example implementations, a drawer slide assembly may including an elongate member including a first slot extending through an upper region and a second slot. The drawer slide assembly may further include a first end cap coupled to the first end region of the elongate member, in which the first end cap has a first projection that extends at least in part through the first opening. The drawer slide assembly may also include a second end cap coupled to the second end region of the elongate member, in which the second end cap has a second projection that extends at least in part through the second opening.

Abstract: Provided are a housing and an electronic device that ensure sufficient strength even when reduced in thickness. A carbon fiber layer included in the housing is disposed such that the orientation direction of carbon fibers is perpendicular to the lengthwise direction of the long sides of a back face panel, thus enabling improving the flexural strength of the back face panel. This enables increases in the number of carbon fibers per unit of area of the back face panel, and enables the length of each carbon fiber to be reduced. Accordingly, it is possible to cause the carbon fibers to flex less readily, thus enabling improving the strength in the flexing direction of the back face panel.

Abstract: A slide assembly includes a first slide, a locking member, a second slide, and a third slide. The first slide defines a first slot, a locking hole, and a first engaging hole. The locking member is attached to the first slide. The locking member includes a body, a first locking tab, a ridge, and an engaging tab. The body is located on an outer side of the first locking tab and includes two opposite resilient end portions. The engaging tab is received through the first engaging hole. The second slide is located on an inner side of the first slide. The second slide includes a second locking tab and defines a second slot and second engaging hole. The third slide is located on an inner side of the second slide away from the first slide.

Abstract: A slide assembly includes a first rail, a second rail, a stop member and a friction member. The first rail includes two sidewalls with a connection wall connected therebetween. The second rail is slidably located between the two sidewalls of the first rail. The stop member is fixed to the connection wall and has a stop plate which is perpendicular to the connection wall. The friction member is fixed to the second rail and has an extension portion. The extension portion has a guide face. When the second rail is moved relative to the first rail after the friction member touches the stop plate and overlaps the stop member by the guide face, the friction member is slidably and flexibly in contact with the stop plate.

Abstract: The invention relates to drive device for a movable furniture part, comprising a lockable ejection device for ejecting the movable furniture part out of a closed position into an open position, wherein the ejection device can be unlocked by pushing the movable furniture part over into an pushed-over position located behind the closed position in the closing direction, wherein a blocking element is provided, which has a first position in which the movable furniture part can be stopped when reaching the closed position, wherein the blocking element prevents a further movement of the movable furniture part in the closing direction, and said locking element has a second position in which the path into the pushed-over position for the movable furniture part is enabled.

Abstract: A drawer slide system for a chassis is provided. The drawer slide system includes a first slide affixed to a drawer. The drawer slide system allows the drawer to extend from the chassis. The drawer slide system also includes a slide assembly slidingly coupled to the first slide. The slide assembly includes a second slide and a first damped stop assembly, which includes a first stop tray and a first elastomer, arranged within the first stop tray. The first elastomer reduces shock to the chassis when the drawer is fully seated within the chassis.

Abstract: The invention relates to a pull-out guide comprising a fixable guide rail and a movably supported running rail, between which a middle rail is optionally arranged, wherein at least one latching device is provided for fixing the running rail on the guide rail in a releasable manner and the latching device comprises a spring element and an engaging element, wherein the spring element and the engaging element of the at least one latching device are arranged in a defined position on an outside of the pull-out guide.

Abstract: A pull-out guide for a furniture part which is pulled out of a basic furniture structure having first and second guide rails, the second guide rail is mounted for displacement over a displacement distance, in and counter to a displacement direction. A braking action of the second guide rail is damped at least at one end of the displacement distance by a stop damper against which a mating stop element runs up. The stop damper includes a lever mounted for pivoting about a pivot axis on the guide rail on which the stop damper is arranged, and has first and second lever arms which can be flexed elastically for damping the braking action of the second guide rail. At a limit value for the pivoting action of the first lever arm, an overload-stop device takes effect and limits the pivoting action of the first lever arm about the pivot axis.

Abstract: A two way three section slide drawer slide assembly for permitting a drawer to be selectively pulled out from opposite open ends of a compartment is provided with an elongated outer section secured to the compartment; an elongated intermediate section disposed in the outer section; two elongated sliding members each slidably disposed either between upper edges of the outer section and the intermediate section or between lower edges of the outer section and the intermediate section; an elongated inner section including a two-end open flat track; an elongated bearing member disposed between the intermediate section and the inner section; two stop units releasably secured to the engaging members respectively; and two flexible limit members threadedly secured to the inner section. One limit member is disposed reverse to the other limit member.

Abstract: A detachable inner sliding rail and server case mounting arrangement includes a server case having a plurality of hangers arranged in a line at one side thereof, each hanger defining a shank and a head, an inner sliding rail having a plurality of hanger holes spaced along the length thereof for hanging to the hangers of the server case, each hanger hole defining a large hole for the passing of the head of one respective hanger and a narrow slot for engagement with the shank of one respective hanger after insertion of the heads of the hangers through the large holes of the respective hanger holes and a horizontal displacement of the inner sliding rail relative to the server case, a spring plate affixed to the inner sliding rail adjacent to one hanger hole, and a stop member pivotally coupled to the spring plate.

Abstract: A slide rail assembly includes a first, second, and third rail. The second rail is slidably connected to the first rail defining a second path. The third rail is slidably connected to the second path of the second rail. A front and rear support are respectively connected to a front end and rear end of the first rail. A stop member has a fixed section and a resilient section extending from the fixed section. The fixed section is fixed to the front support and the first rail. The stop portion is located at the resilient section. When the third rail is separated from the second rail and the second rail is retracted in the first rail, the stop portion prevents the third rail from being inserted into the second path.