Abstract: A joint assembly for forming a two part radiation therapy treatment table is disclosed. The treatment table includes a patient support panel to which one portion of the joint assembly is secured, and a table extension panel to which another portion of the joint assembly is secured. The joint assembly self-aligns, self levels, is immediately stable, and locks automatically by its weight and downward pressure. The joint assembly also includes an automatic failsafe secondary lock that resists joint release if upward forces are applied. Disengaging the secondary lock requires and results in no displacement of the two panels. Upon separation of the two panels the lock resets automatically.

Abstract: A compressible engagement assembly includes a latching assembly configured to releasably engage a rack assembly. A compressible member is configured to be compressed by the latching assembly when the latching assembly is releasably engaged with the rack assembly. The compressible member is further configured to engage a rackmount component removably positioned within the rack assembly.

Abstract: An electronic device is provided, including a main body, a latching mechanism, and a movable member. The latching mechanism is disposed on the main body to join with the movable member. The latching mechanism includes a rod, a first latching member disposed on a side of the rod, a second latching member connected to the rod, a first elastic member connecting the first latching member with the main body, a second elastic member connecting the second latching member with the main body, and a rotary member. The rotary member pivotally connects to the main body, and connects the rod with the first latching member.

Abstract: A system is provided for the force decay triggered release of a device, the system comprising: a base; a plurality of retention rods extending from the base; a rotationally movable actuator, to which a linear force is configured to be applied, converting the linear force to a rotational force; a plurality of retention pins, the retention pins being coupled to the actuator, and each the pin being removably disposed within a retention rod of the plurality of retention rods, such that a rotation of the actuator withdraw each the pin from respective the rod; a force triggered detent, the detent allowing the rotation of the actuator when the rotational force exceeds a threshold level.

Abstract: The connection device according to the invention comprises a first element (3) designed to be connected to the support and a second element (4) designed to be connected to the load. The second element (4) includes a tubular portion (9, 15) adapted to receive the first element (3), locking means (24) movable between locking and unlocking positions of the first and second elements (3, 4), a control ring (25) movable between a first position in which it immobilizes the locking means (24) in their locked position, and a second position in which it allows the locking means (24) to move toward their unlocked position, and a control button (42a, 42b) movable between a first position in which the control button cooperates with the tubular portion so as to immobilize the control ring (25) in its first position, and a second position in which it allows the control ring (25) to move toward its second position.

Abstract: In one aspect of a coupling device for securing a primary mover to a work tool may include first and second coupling bodies interconnectable to form a first connecting interface and a second connecting interface spaced apart from the first connecting interface. The coupling device may also include a rotary wedge member attached to the first coupling body and rotatable to progressively force together the first and second coupling bodies.

Abstract: An offset mountable accessory, including an accessory having an accessory body; and an accessory mounting clamp coupled to the accessory body, wherein the accessory mounting clamp is capable of mounting the accessory body to an accessory rail, such that the accessory body is mounted offset from the accessory rail.

Abstract: A wobble joint fitting for an adjustment device of a motor vehicle seat, in particular for a seat back hinge fitting, comprises (a) a first fitting part comprising an internal ring gear, (b) a toothed eccentric gear that engages the internal ring gear and that has an eccentric hole, (c) an eccentric to which a rotatable drive part is associated and which comprises wedge segments, (d) a second fitting part that is adjustable with respect to the first fitting part, and (e) a wrap spring. The wrap spring is a flat open spring ring and extends over an angle of less than 360°. The eccentric gear comprises a collar for the spring ring to fit against.

Abstract: An apparatus with a handle having a release mechanism comprises a bracket having a front panel, an extracting module and a driven module. The extracting module is mounted on the bracket and includes a handle, an extracting piece, and a first contact portion. A spring is provided between the front panel and the extracting piece. The driven module is fixed on the bracket and includes a driven piece having a locking portion and a second contact portion. When the handle is not dragged forward, the locking portion is located in a locked position. When handle is dragged forward so that the extracting piece moves towards the front panel and that the first contact portion pushes the second contact portion, the locking portion is moved to an unlocked position. A system containing an apparatus having a handle is also provided.

Abstract: A coupler for an excavator has first and second recesses for receiving first and second pins, respectively, of an attachment. A latching member is movable into and out of a latching state in which it closes the second pin-receiving recess. A blocking member is movable into and out of a blocking state in which it closes the first pin-receiving recess. An actuator is provided for moving the first latching member into and out of the latching state, the actuator acting indirectly upon the blocking member to move the blocking member into and out of its blocking state as the latching member is moved into and out of its latching state. Preferably the actuator acts upon the blocking member via a resiliently deformable member acting between the actuator and the blocking member whereby the resilient member can deflect should the blocking member be obstructed to avoid excessive loading on the actuator.

Abstract: A dishwasher capable of fastening a basket of the dishwasher therein using a fixation member and a basket fixation apparatus of the dishwasher, the dishwasher including a body having an opening, a washing tub provided at an inside the body, a basket disposed at an inside the washing tub to store dishware, a stopper disposed to at least one inner side of the washing tub, and a fixation member configured to prevent the basket from being separated from the body and to be able to move between a stop state that one portion of the fixation member is engaged with the stopper and a release state that the fixation member is moved from the stop state for the basket to be withdrawn from the body.

Abstract: A connection mechanism to connect a first housing and a second housing together is provided. The connection mechanism includes a base, a button, and at least one rotatable member. The base includes at least one first hook and is slidably connected to the first housing. The base is capable of sliding between a first position where the first hook engages the second housing, and a second position where the first hook disengages from the second housing. The button is slidably connected to the first housing. The rotatable member is rotatably connected to the first housing, where one end of the rotatable member resists against the button, an opposite end of the rotatable member resists against the base, and the rotatable member is capable of being rotated about a shaft between the one end and the opposite end.

Abstract: A quick disconnect device for detachably holding a long gun or other elongated emergency tool (EET). The quick disconnect device receives and captures the ball of a ball-and-stem structure that is attached to the EET. The quick disconnect device may allow the EET to rotate about the central axis of the stem, but otherwise prevents relative translational and rotational motion between the EET and the quick disconnect device. The quick disconnect device is especially suitable for mounting to clothing, such as a utility belt or a ballistic vest. the quick disconnect device allows the EET to be inserted without requiring the user to directly manipulate the quick connection device, but requires the user to manipulate some sort of mechanism on the quick connect device in order to release the EET.

Abstract: One embodiment of a gun configured with the soft recoil system comprises a plurality of recoiling parts that initially moves in the direction of the projectile being fired before moving in a direction opposite to that of a projectile during the firing of the round. The soft recoil system throttles the movement of the recoiling parts such that the energy expended during the firing of the round is spread over a longer time period and a longer distance than would normally occur. The soft recoil system stores at least a portion of the energy transferred to the recoiling parts and the user may selectively release at least a part of that portion of energy to offset the energy imparted to the gun during the firing of the next round.

Abstract: A fixing mechanism of housing includes a housing and a fixing assembly. The housing has a first wall and a second wall connected adjacently. The first wall has an assembling portion with an assembling hole projected thereon. The second wall has a buckling tab. The fixing assembly includes a knob and a locking piece. The knob has an operating portion, connected to a mounting arm, disposed on the assembling portion. The locking piece has a base disposed on the inner side of the assembling portion, a hooking arm extended from the base, and an elastic portion. The mounting arm penetrates through the assembling hole in securing to the base. The elastic portion is connected to the hooking arm and the first wall on respective ends. The free end of the hooking arm has a claw portion selectively engaged with the buckling tab of the second wall.

Abstract: A capture mechanism provides for receiving a necked coupling element within a socket, providing for the necked coupling element to slide therewith, biasing a latch lever in an open position so as to provide for receiving the necked coupling element within the socket adjacent to the latch lever, rotating the latch lever with the necked coupling element from the open position to a closed position as the necked coupling element is slid within the socket towards a bottom of the socket, biasing a latch lock against the latch lever, engaging the latch lock with the latch lever when the latch lever is in the closed position so as to provide for latching the latch lever in the closed position and capturing the necked coupling element within the socket, and providing for unlatching the latch lever by releasing the latch lock from engagement with the latch lever.

Abstract: There is provided a locking mechanism to secure a coupler's jaw, and a coupler incorporating the locking mechanism.

Abstract: The invention relates to a device for unlocking swing-action side walls (2 to 5) which are hinged on the base (6) of boxes and/or containers (1), of which the two opposite end walls (4, 5) can be locked to the two adjacent side walls (2, 3) and unlocking takes place by virtue of a lifting movement of a bracket-like actuator (13), which interacts with a movement-deflecting means (16, 17), and wherein unlocking crosspieces (19) act on spring-tongue-like locking means (10) of the side walls (4, 5), these locking means being latched into the end walls (2, 3), and force them out of their latching seat, in which they clamp the end walls (2, 3).

Abstract: A tool extension rod which is adapted to be connected to or disconnected from a socket essentially comprises a rod body, a positioning unit, and a pushing sleeve. If the socket is connected to the rod body and fixed by the positioning unit, the pushing sleeve can be pushed to control the positioning unit so as to loosen and remove the socket from the rod body without any additional manual operation.

Abstract: A latch mechanism for a siderail assembly comprises a handle, a link assembly, and a pin. The handle is configured to be moved between a first position and a second position. The link assembly is coupled to the handle and configured to move between a latch position and an unlatch position as a function of the movement of the handle. The pin is configured to be engaged by the link assembly and is configured to rotate from a first rotational orientation to a second rotational orientation to disengage the link assembly from the pin when a false latching condition occurs.

Abstract: An adjustable accessory mounting clamp for mounting an accessory to an accessory rail, including an accessory band, a primary locking arm, a secondary locking arm, and a threaded adjustment rod that is anchored, at a first end, to the primary locking arm, extends through an aperture in the secondary locking arm, and is threadedly coupled to a cam lever pin of a cam lever, wherein the cam lever includes at least one camming surface, such that when the cam lever is in a closed position, the camming surface contacts an outer surface portion of the secondary locking arm to provide tension to the threaded adjustment rod, such that a distance between the primary locking claw and the secondary locking claw is adjusted to accommodate varying width accessory mounting rails.

Abstract: A lifting device for the backrest of a chair includes a fixed member, a movable member movably mounted on the fixed member and having an elongate slideway and a plurality of locking grooves, a locking bolt extending into the slideway of the movable member and detachably locked in one of the locking grooves of the movable member, a slide secured on the locking bolt to move the locking bolt, and an elastic member biased between the slide and the fixed member to push the locking bolt toward one of the locking grooves. Thus, the movable member is moved relative to the fixed member to adjust the height of the backrest so that the height of the backrest can be adjusted according to a user's requirement, and the backrest can support the user's back efficiently.

Abstract: An underwater clamping arrangement (100, 100?) is provided for fixing at least a first and a second member (1, 2) together, to prevent relative movement between the members along at least a longitudinal axis (2L). The clamping arrangement comprises at least a fixed portion (102, 102?) attached to the first member and a reaction portion (104, 104?) attachable to the fixed portion, and a forcing portion (106, 106?). The forcing portion is arranged to apply a clamping force (4F, 4G) in a direction along a forcing axis (2F) substantially perpendicular to the longitudinal axis between the reaction portion and the second member so to fix the two members together. The reaction portion and forcing portion are removable from the fixed portion when the clamping arrangement is clamped.

Abstract: A storage latch mechanism (160) is disclosed for a foldable stroller. The stroller has a frame assembly with a chassis (52) and a handle (54). The frame assembly is reconfigurable between an in-use configuration and a folded configuration and the handle (54) is movable between a normal use position and a stowed position relative to the chassis. The storage latch mechanism (160) has first and second storage latch parts carried on the frame assembly and which are latched to one another with the frame assembly in the folded configuration and which are unlatched from one another in the in-use configuration. Movement of the handle (54) to the stowed position frees the storage latch mechanism (160) to latch and movement of the handle from the stowed position to the normal use position unlatches the storage latch mechanism.

Abstract: The embodiments provide a barb assembly for use with a cable duct component to oppose removal of a cable duct section from the cable duct component. The barb assembly can comprise a releasable assembly for applying a force to a barb and, responsive to the application of the force, for moving the barb and one or more barb arms from an unengaged position to an engaged position without the use of tools. The barb assembly and/or cable duct component can also comprise a spring bias, which can bias the releasable assembly to the unengaged position upon actuating the releasable assembly to the unengaged position. The embodiments also provide methods of installing cable duct components and systems with the above-described features.

Abstract: When an insertion portion of a clip is inserted into a through hole and passes through the through hole, lug portions revert toward their original shape, and the top faces of the lug portions are contactable with peripheral edge portions of the through hole. An operation lever is inserted into a fixing hole of a body panel in this state, and after passing through the fixing hole, the operation lever reverts toward its original shape, and the operation lever is contactable to peripheral edge portions of the fixing hole. An operation portion is tilted from this state, and a lock bar is engaged with a lock groove. Movement of the operation lever is thereby restricted, and a housing is fixed to the body panel.

Abstract: A latch mechanism applied for multi-function game table includes a confinement component and a latch component. The game table has a framework and a tablet pivoted to the framework for flip. The confinement component is applied for the tablet of the game table and has a channel formed thereof. The latch component is applied for the framework of the game table to correspond with the confinement component, and the latch component includes a base and a switch. The base has a through passage to correspond with the channel of the confinement component. The switch is arranged in the through passage of the base; and has a manipulation member and a shut member. The manipulation member is pivoted to the base via a connecting end thereof for angular displacement, and the shut member is approximately vertical to the manipulation member so as to move as same as the manipulation member.

Abstract: A coupler for a backhoe or other excavator includes a frame with a lock system including a first safety lock that moves relative to a first hook between an engaged position for capturing the first associated attachment pin in the first hook and a disengaged position for releasing the first associated attachment pin from the first hook. An actuator moves the first safety lock between its engaged and disengaged positions. At least a first lock arm is movable between a locked position and an unlocked position. The first lock arm engages and retains the first safety lock in its engaged position when the first lock arm is in its locked position. The first lock arm is movable to its unlocked position by contact with the associated backhoe or excavator arm when the frame is moved to a curled position relative to the associated backhoe or excavator arm.

Abstract: A robotic tool changer having a master unit and a tool unit adapted to be coupled together. Movably mounted in the master unit of the robotic tool changer is a piston that is movable between locked and unlocked positions. The piston includes a contact area having an unlocking surface, a failsafe surface and a locking surface. Also provided is a series of rolling members contained within a retention area that are actuated by the piston to lock the master unit to the tool unit. For example, the piston engages the rolling members and urges them into a locked relationship with a bearing race that forms a part of the tool unit. To prevent the inadvertent or accidental movement of the piston from the locked position to the unlocked position, the piston is provided with a retarding surface generally disposed between the locking surface and the unlocking surface on the piston for retarding the movement of the piston as the piston moves from the locked position to the unlocked position.

Abstract: Couplers for attaching an accessory to an excavator arm of an excavator. Couplers having a first side for attaching the coupler to the excavator arm and a second side onto which the accessory will be coupled. The coupler includes a latch for selectively securing and releasing an attachment pin of the accessory in a jaw, groove, hook or slot in the second side of the coupler. The coupler is fully controllable from within the cab of the excavator and it allows improved security in the securement of the accessory to the coupler, i.e. preventing accidental decouplings, but while still allowing intentional decoupling operations to be carried out without undue burden.

Abstract: A quick coupler for connecting and disconnecting an implement such as a bucket to and from a machine such as an excavator. In an example, the quick coupler includes a frame having recesses configured to receive pins located on the implement. The quick coupler includes first and second securing latches that are movable between latched and unlatched positions for removably latching the pins of the implement in the recesses. A rocker assembly and a connector link are provided for moving the second latch between latched and unlatched positions.

Abstract: A vehicle includes a vehicular frame, a utility bed, and a locking device. The utility bed is pivotally coupled with the vehicular frame and is pivotable between a hauling position and a dumping position. The locking device is operable between a locked position and an unlocked position and is configured to prevent the utility bed from pivoting to the dumping position when the locking device is in the locked position.

Abstract: A release actuator can comprise a support element, a latch mechanism, a release button movably assembled with the support element, a transmission element connecting the latch mechanism with the release button, and a safety latch key disposed adjacent to the release button. The release button can be movable parallel to a first axis for driving unlocking operation of the latch mechanism. The safety latch key and the release button are assembled so as to be movable relative to each other parallel to a second axis for either blocking or unblocking movements of the release button parallel to the first axis. Moreover, one embodiment of an infant carrying apparatus is also described.

Abstract: Assembly of a pin guide member for retaining a pair of connecting pins is facilitated for improvement in an assembling property and cost reduction. On the premise that inner brackets are overlapped with outer brackets, and pins are inserted into pin holes thereof so as to connect the brackets to each other, inner collar portions of pin guide members for retaining the pins are combined and integrated with each other by bolts and nuts through a supporting plate serving as a connection member. Meanwhile, outer collar portions of both the pin guide members are supported in the pin radial direction with respect to the inner brackets and rotation thereof is prevented.

Abstract: A foldable handrail structure includes a casing, a first handrail member and a first locking member. The first handrail member is rotatably connected to the casing. The first locking member is rotatably disposed in the casing. The first locking member is capable of rotating between a first locked position and a first unlocked position, so as to selectively restrain the first handrail member from rotating.

Abstract: A mounting apparatus for attaching a data storage device to a chassis includes a latching member, first and second elastic members and a button. The latching member defines a through hole therein and forms a latching pin at a first end thereof. The button includes an abutting portion and a pressing portion extending up from the abutting portion. When the mounting apparatus is mounted to the chassis, the button is placed on a bottom side of the latching member, the latching member is movably mounted to the chassis, the first elastic member is compressed between the second end of the latching member and a baffle formed on the chassis, the second elastic member is compressed between the button and the chassis, the pressing portion of the button extends through the through hole and extending out of a top surface of the latching member.

Abstract: Release of attachment assemblies. Attachment assemblies including releasing means, a trigger; and cables in mechanical communication with the releasing means and with the trigger for operation of each releasing means having such mechanical communication.

Abstract: The present application provides a battery pack locking device, comprising a button, a snap element for engaging the battery pack with an electrical appliance, a linkage controlled by the button, a spring provided below the button and a support. The snap element is hinged to the support at one end and the first end of the linkage is disposed below the button. When the button is pressed down, the first end moves down and the second end of the linkage moves upwardly relative to the first end. Also, the snap connecting portion moves downwardly in a curved path without squeezing the snap groove of the electrical appliance, resulting in decreased friction between the parts and a reduced force necessary to press down the button. Accordingly, the battery pack can be easily mounted to and removed from an electrical appliance.

Abstract: A lifting device for the backrest of a chair includes a fixed member, a movable member movably mounted on the fixed member and having an elongate slideway and a plurality of locking grooves, a locking bolt extending into the slideway of the movable member and detachably locked in one of the locking grooves of the movable member, a slide secured on the locking bolt to move the locking bolt, and an elastic member biased between the slide and the fixed member to push the locking bolt toward one of the locking grooves. Thus, the movable member is moved relative to the fixed member to adjust the height of the backrest so that the height of the backrest can be adjusted according to a user's requirement, and the backrest can support the user's back efficiently.

Abstract: A portable support structure including a platform member having a primary platform connector and a secondary platform connector. The primary platform connector is configured to receive a primary support connector. The secondary platform connector is configured to receive a secondary support connector. The support structure also includes a primary support member including the primary support connector and a hook member. In addition, the support structure includes a secondary support member having a first end and a second end. The first end is detachably engaged with the secondary platform connector and the second end is in locking engagement with the hook member. The primary support connector includes structures that engage the primary platform connector and rotationally position the primary support member. The hook member includes a hook portion that engages and prevents the secondary support member disengaging upon a rotation of the secondary support member.

Abstract: A retention clamp includes a shaft having a stop member and a first threaded portion, the first threaded portion including a left hand thread. A clamping member is threadably connected to the first threaded portion. A biasing member positioned between the stop member and the clamping member transfers a rotational force applied to the shaft to the clamping member to rotate the clamping member into an engagement position. An indexing member can be slidably received over the first threaded portion and positioned between the stop member and the clamping member. The indexing member is frictionally engageable with the clamping member so indexing member rotation rotates the clamping member. Both the indexing member and the clamping member can include meshable ratchet teeth to assist clamping member rotation. Legs extending transversely from the biasing member can positively engage the stop portion and the indexing member.

Abstract: The device includes first and second elements which are intended to be rigidly connected each to a respective length of an elongated mechanical transmission member, such as a push-pull cable, a rod or a bar, and are slidably arranged relative to each other in the axial direction of the transmission member. A locking member is radially movable between a locking position, in which it drivingly connects the two elements for translation with each other, and a unlocking position, in which it disconnects the two elements from each other, thereby making them free to translate relative to each other. A cam member is free to translate axially relative to the first and second elements and has at least one cam surface which cooperates with the respective locking member so as to keep this latter in the locking position up to the predetermined travel value and to move it into the unlocking position in case of travel values higher than the predetermined travel value.

Abstract: A coupling mechanism, in particular for medical instruments, having a coupler plug and a coupler socket for inserting the coupler plug, where the coupler socket and coupler plug can be secured to one another by at least one spring-loaded catch connection, where the catch connection can be actuated by a safety mechanism and can be released by the coupler plug inserted into the coupler socket. To create a coupling mechanism that is simple to operate and ensures secure catching connection of the components and that are to be connected with one another, the safety mechanism should be configured as a spring-loaded catch element positioned in the coupler socket.

Abstract: An apparatus for coupling with a mating coupling module to facilitate the joining of two disjoined structures without requiring precise alignment between the disjoined structures during the coupling of them may include a rotating drive mechanism, a hollow cylindrical body operatively connected to the rotating drive mechanism, wherein the hollow cylindrical body has at least one internal spiral channel, and at least one connector claw positioned within the hollow cylindrical body and guided by the internal spiral channel, wherein the at least one connector claw is configured to extend outwardly from the coupling module to engage the mating coupling module when brought in close proximity but not necessarily in precise alignment with the mating coupling module.

Abstract: The embodiments provide a barb assembly for use with a cable duct component to oppose removal of a cable duct section from the cable duct component. The barb assembly can comprise a releasable assembly for applying a force to a barb and, responsive to the application of the force, for moving the barb and one or more barb arms from an unengaged position to an engaged position without the use of tools. The barb assembly and/or cable duct component can also comprise a spring bias, which can bias the releasable assembly to the unengaged position upon actuating the releasable assembly to the unengaged position. The embodiments also provide methods of installing cable duct components and systems with the above-described features.

Abstract: A handle height adjusting mechanism includes: a coupling member disposed on a handle tube of a stroller; an actuating member disposed movably on the handle tube, and coupled to the coupling member for driving movement thereof; an engaging member connected to the coupling member; and a resilient member coupled to the coupling member for biasing the coupling member to a first position, where the engaging member engages the selected positioning hole to arrest movement of the handle tube relative to the frame tube. The actuating member is operable to move the coupling member to a second position against biasing action of the resilient member, such that the engaging member is removed from the selected positioning hole so as to permit movement of the handle tube relative to the frame tube.

Abstract: The embodiments provide a barb assembly for use with a cable duct component to oppose removal of a cable duct section from the cable duct component. The barb assembly can comprise a releasable assembly for applying a force to a barb and, responsive to the application of the force, for moving the barb and one or more barb arms from an unengaged position to an engaged position without the use of tools. The barb assembly and/or cable duct component can also comprise a spring bias, which can bias the releasable assembly to the unengaged position upon actuating the releasable assembly to the unengaged position. The embodiments also provide methods of installing cable duct components and systems with the above-described features.

Abstract: A rotary knife assembly includes a rotary knife with a spinning blade, a motor operable to power the rotary knife, a flexible drive cable with a proximal end drivingly connected to the knife to transmit rotational power to the blade while being flexed along the length of the cable, and a safety release drivingly connected to a distal end of the cable. The safety release is drivingly coupled to the motor and is operable to transmit rotational power from the motor to the drive cable and thereby the rotary knife. The safety release includes input and output members releasably drivingly engaged with one another. The safety release is operable to drivingly disengage the members.

Abstract: A coupler includes a first hook assembly comprising a first hook adapted to receive a first associated attachment pin and a second hook assembly comprising a second hook adapted to receive a second associated attachment pin. The second hook assembly selectively pivots under force of an actuator relative to the first hook assembly by an actuator. The actuator comprises a screw jack that includes a locking sleeve to prevent unintended rotation of the screw member. The actuator can be a hydraulic cylinder and the coupler can include a locking cam that moves between a retracted position and an extended position, with a supplemental lock that selectively prevents movement of the locking cam from the extended position to the retracted position. In such case, the actuator is operatively coupled to the second hook assembly and the locking cam.

Abstract: A connection device for connecting with a socket includes a main body formed with an internal axial slide passage. A slide rod is mounted in the slide passage and slidable along the slide passage. An engaging column is mounted in a through hole of the main body. A contact face is formed at a bottom end of the engaging column in contact with a slope of one end of the slide rod. In normal state, the slide rod is urged by a resilient member, whereby the slope approaches and pushes the engaging column outward. The engaging column and the slide rod are face-to-face in contact with each other. A socket can be directly fitted onto the main body of the connection device without first making the slide rod leave the engaging column. When the socket touches the engaging column, the action force is transferred to the slide rod to make the slope thereof move away from the engaging column.