Abstract: An electrical appliance for personal use is disclosed. The appliance includes an electric motor for driving a working tool via a drive train. The drive train has a driving wheel for driving a transmission element in engagement therewith. The driving wheel has a mounting portion mounted on a driving shaft connected to the electric motor. The engagement portion of the driving wheel which is in engagement with the transmission element, is positioned axially offset from the mounting portion of the driving wheel.

Abstract: A drive device capable of engaging a drive shaft and a part holding the drive shaft with a suitable force without accompanying increase in the size of the drive device. The drive device includes a couple member with a piezoelectric element and a transmission shaft coupled together, a lens holder that holds a lens and to which the couple member is secured, a biasing member that biases the transmission shaft in a direction intersecting a placement direction of the transmission shaft viewed from the lens holder (excluding a lengthwise direction of the transmission shaft), and a link member (link body) that holds the transmission shaft in a slidable manner together with the biasing member.

Abstract: The proposed invention is a human powered cycle/vehicle which utilizes a reciprocating arcuate linear handlebar motion to operate a double acting asynchronous propulsion mechanism which imparts constantly proportional input versus output motion to its' surface engaging propulsion wheel(s). The propulsion mechanism contains a complex mechanism which causes both backward and forward motions of a set of handlebars to propel the machine forward. A drive-train clutch (52) may be included which enables the propulsion mechanism to be disengaged thus allowing the cycle/vehicle to be reversed and or moved (pushed) in either direction via its' surface engaging wheel(s) in isolation to the propulsion mechanism. A steering mechanism may also be attached to the handlebars (1) which are rotated clockwise to steer the machine to the right and anti-clockwise to steer the machine to the left.

Abstract: A linear actuator is provided that includes a housing having an input member supported for rotation therein. An output member travels linearly along the input member when the input member is rotated relative to the output member. A guide rail extends along an inner surface of the housing. The output member engages the guide rail to prevent rotation of the output member.

Abstract: An actuating device for a rotatable, shiftable mechanical connection. The connection comprises first and second connection portions (2, 3) which each have teeth (4) and an actuator (11) for causing relative axial movement of the first and the second connection portions (2, 3) for engaging and retaining the connection in an engaged position. A radially adjustable axial bearing (21) is formed between a rotatable axially movable piston (8), on which one of the first and the second connection portions (2 or 3) is arranged, and a fixed machine component (9). The axial bearing (21) has bearing elements (25) which can be radially displaced, by actuation of the actuator (11), such that the piston (8) can be moved in an axial direction along a defined engagement travel path (26) into the engaged position and, when in an end position of the actuator (11), the piston (8) is retained within the engaged position.

Abstract: A mobile oscillator device that employs two counter-rotating masses that generate a large impact force at multiple frequencies without generating forces in other undesired directions.

Abstract: A driving device for a hatch in a vehicle with a first housing part connectable to a stationary base part or a movable structural component part, a second housing part connectable to the other, of the movable structural component part and the stationary base part, a spindle drive by which the first and second housing parts are movable axially relative to one another, a rotary drive that drives the spindle drive in rotation including a motor and a gear unit accommodated in a gear unit housing, and a braking device. The spindle drive includes a threaded spindle that has a first spindle portion and a braking spindle nut that is axially movable on the first spindle portion and a second spindle portion and a working spindle nut axially movable on the second spindle portion. The braking spindle nut cooperates with the braking device for applying a holding force to the spindle drive.

Abstract: A drive mechanism (20) including a first shaft (324) having a first fixed gear (328) and a second shaft (322) having second fixed gear (330) that engages the first fixed gear to cause the first shaft to rotate in an opposite direction than the second shaft. A first linkage (368) connecting the first shaft and the third shaft and includes a first one-way gear (336). A second linkage (366) connecting the second shaft and the third shaft and includes a second one-way gear (338). The third shaft outputs a unidirectional rotational motion.

Abstract: The present invention relates to an apparatus for adjusting a light module along a horizontal or a vertical axis, comprising an actuator and a linear control element which can be moved in an adjustment direction and is driven by said actuator to operate an adjustment mechanism, wherein an articulated joint connects said mechanism to a carrier of the light module and wherein an articulated joint connects a free end of the linear control element to the adjustment mechanism such that said linear control element can pivot around a first axis of rotation perpendicular to the adjustment direction to make up a first pivot joint, wherein the adjustment mechanism provides a control element (2) as an integrated whole and wherein the control element (2) and/or the carrier (3) are designed such that a second pivot joint allows the control element (2) to pivot around a second axis of rotation (D2) perpendicular to the first axis of rotation (D1).

Abstract: A reciprocating device, comprising: a motor; at least one crank mechanism attached to the motor; at least one rod attached to the crank mechanism; and at least one sleeve surrounding at least a portion of the at least one rod, adapted to dampen optional vibrations of the rod.

Abstract: Three or more displacement generation mechanisms, which allow some of a plurality of guide members that are provided respectively to a plurality of guide holding members that is capable of reciprocally moving substantially perpendicularly to shifting directions of a reciprocally movable linear motion structural member with respect to a base member, and a rocking member that is provided to an end of a linear motion member capable of reciprocally moving in directions substantially in parallel with the shifting directions of the guide holding members so as to rock around an axis substantially perpendicular to the respective shifting directions of the linear motion structural member and the linear motion member, to be made in contact with each other so that some of the guide holding members are displaced relatively to the linear motion structural member, are operation-controlled, with a result that a transmission gear ratio between a displacement velocity of the linear motion member and a displacement velocity of

Abstract: Systems and methods are disclosed for material treatment within a member or for removal of material from within a member. Embodiments have a spindle powered by a motor or motors positionable within the member during operation of the spindle; and, in certain particular aspects, such systems and methods are for forming a stator for a downhole motor.

Abstract: A power multiplier lever system gives an increase in mechanical power generated by the motor thereby giving greater power to the piston giving a greater compression capacity that makes air compression possible without the need to use a large quantity of mechanical power.

Abstract: Vibrational apparatus capable of providing a vibrational output, said apparatus comprising or including an assembly having a shuttle capable of shuttling between complementary structures, at least one of which complementary structures provides the vibrational output, the arrangement being characterised in that there is a drive to rotate the shuttle and there are magnetic interactions between the rotating shuttle and the complementary structures such that interactions with each complementary structure, and the phasing of the complementary structures relative to the shuttle, alternating magnetic results in the shuttling movement of the shuttle.

Abstract: The invention relates to mechanical engineering, in particular to piston machines and mechanisms for converting the movement of the pistons thereof into shaft rotation. The technical result of the invention involves increasing the operational reliability, extending the service life, improving the specific mass and dimensional characteristics and enhancing the efficiency of a machine. The essence of the invention is that the piston and the crank of a piston machine are interconnected by means of a hinged joint with at least a flat hinge which enables the piston to self-center along the cylinder surface owing to the movement of the piston with respect to the crank in any direction on a plane that intersects the longitudinal axis of the cylinder.

Abstract: An actuator includes a transmission element configured to transmit a mechanical regulating signal, a guide element and a transmission element mounted on the guide element. The guide element has an inner surface facing the transmission element. The transmission element has an outer surface facing the guide element, wherein the guide element includes at least one radial groove.

Abstract: The invention is based on the object of driving a trunk lid or hard or soft tops of a vehicle by a motor as efficiently and as economically as possible. Typically a hydraulic cylinder having very high energy density, or an electromechanical spindle drive, generally provided with a planetary gear as is known from DE 10 2004 040 170 A 1, is used today. Said arrangement has the disadvantage that the transmission comprises several wheels in order to enable an accordingly high gear ratio for the required slow rotational movement of the spindle. In the process, a loud operating noise is produced. The invention relates to a linear drive having a high-ratio single-step manual transmission and the possibility of integrating an energy storage, for example a helical spring or a gas pressure spring, and the possibility of integrating a hydraulic brake.

Abstract: There is provided a mechanism for converting rotary motion into linear motion in which high positioning accuracy can be obtained in mutual conversion between rotary motion and linear motion. The mechanism includes a plurality of rollers having a roller annular groove member and a pair of thrust bearings, a thrust bearing portion that is convex shaped and is held between the pair of thrust bearings on an outer surface of an end of the roller shaft, a step surface that is disposed on an inner surface of the roller annular groove member and facing to the thrust bearing portion putting one of the pair of thrust bearing in between, a thrust facing member that is in mesh with an inner surface of the roller annular groove member and is facing to the thrust bearing portion putting the other one of the pair of thrust bearing in between.

Abstract: Disclosed is a leverage motor (1) comprising at least two levers (6), at least one shaft (8, 29), and at least one auxiliary drive unit (2). Said leverage motor (1) further comprises at least one element (4, 5) which can be driven by the auxiliary drive unit (2), is arranged approximately perpendicular to the shaft (8, 29), and is rotatably mounted on the shaft (8, 29). The at least two levers (6, 60, 61) are mounted on the shaft (8, 29) in a rotationally fixed manner and can be directly or indirectly driven by the element in a damped fashion.

Abstract: A motor horse power amplification device using a moment arm design is described. The device converts reciprocal motion of the moment arm to rotational motion which drives an electrical generator. Use of the device can significantly reduce the amount of electricity generated by power plants and thus reduce the need for power plant construction. The devices have many different applications, including home, industrial, and automotive applications.

Abstract: A remote controlled actuator includes a spindle guide section of an elongated configuration, a distal end member fitted to a tip end of the spindle guide section for alteration in attitude, and a drive unit housing to which a base end of the spindle guide section is connected. The distal end member rotatably supports a spindle then holding a tool. The spindle guide section includes a hollow outer shell pipe, a rotary shaft and a guide pipe, and an attitude altering member for altering an attitude of the distal end member is inserted within the guide pipe. A hollow of the outer shell pipe includes a round hole portion at a center and a grooved portion depressed radially outwardly from the round hole portion. The rotary shaft is arranged within the round hole portion whereas the guide pipe is arranged within the grooved portion.

Abstract: A swiveling device for a swiveling C-arm of an X-ray unit includes a motorized drive unit and an adapter removably attachable to the C-arm concentrically with a swiveling axis thereof. The adapter connects the C-arm to the drive unit in driving manner. The swiveling device also includes an angular position encoder for recording the swivel angle of the C-arm.

Abstract: A linear actuator has a housing, a piston slideable within the housing along a slide axis, a first shaft rotatable about a first axis substantially perpendicular to the slide axis, a second shaft rotatable about a second axis parallel to the slide axis, in which the second shaft and the piston are engaged to convert rotational motion of the second shaft into linear motion of the piston, and in which the first shaft and the second shaft are engaged by a ball-worm gear.

Abstract: An output shaft, to which the rotational force of a motor is transmitted, is rotatably supported and housed in a case. One end of the output shaft protrudes from the case, and a pinion gear is provided on this one end. Teeth that mesh with the pinion gear are provided on the outer circumferential surface of cables. A guide member for guiding the cables in such a way that they mesh with the pinion gear is mounted on the case. An urging plate portion that presses against the side of the pinion gear is provided on the guide member. The urging plate portion urges the output shaft in the axial direction and, as a result, rattle of the output shaft is alleviated.

Abstract: The invention relates to a drive device (20) for entrance/exit devices for public transit vehicles, comprising a drive unit (22) disposed in and driving a column (24) that rotates about an axis of rotation Z-Z during opening and closing operations, said column opening and closing an entrance/exit device. The drive unit (22) is supported in the vehicle by way of a support component (40) and the support component (40) acts as a counterbearing for a torque of the drive unit (22). A coupling device (72) is disposed between the drive unit (22) and the support component (40), said coupling device facilitating a rotation of the drive unit (22) about the axis of rotation Z-Z when a limit of the torque acting on the drive unit is exceeded.

Abstract: An energy converter apparatus connected via a rope between a buoyant marine vessel body and to a stationary or semi stationary surface with respect to the motions of the marine vessel to convert differential motions of the vessel compared to the stationary body to useful electrical energy; a rack and pinion gear box device causing the linear motions of the buoyant vessel to an axial rotational motions, the rotation in only one direction; a ratchet wheel connected to a shaft and an electric generator.

Abstract: A drive unit (1) comprising at least one electric drive motor (2) that moves a functional element (3), wherein the functional element (3) assumes, during its movement, a stop position (4) for switching off an electric drive motor (2), and at least one frictional element (6) cooperating with the functional element (3), wherein the frictional element (6) is disposed along a segment of a motion pathway (5) before the functional element (3) reaches the stop position (4). In addition, a motor vehicle lock (10) having a central locking mechanism (11) with such a drive unit (1).

Abstract: A bi-directional rotary actuator causing the output shaft thereof to output two or more kinds of bi-directional and rotational driving forces. A bi-directional rotary actuator includes a rotary solenoid (101) serving as a driving source, a link body (104) engaged with a shaft (132) such that a rotational force can be transmitted to the shaft, an output element (105) connected to the link body, and switching operation means (106) for selecting connection between the link body and the output element. Transmission of a rotational force between the link body and the output element can be appropriately switched to either gear drive performed by meshing of gears or link drive based on a link ratio, and this allows the actuator to output bi-directional rotary driving forces having two or three rotational angles. The switching described above is performed by movement, in the direction of the axis of the shaft, of the link body by utilizing the repulsive or attractive action of an electromagnetic force.

Abstract: A fluid-powered rotary actuator having a body with a shaft disposed therein and having a linear-to-rotary torque transmitting member mounted for longitudinal movement within said body in response to the selective application of pressurized fluid thereto. The body includes a non-cylindrical cross-sectional shape body portion and a non-cylindrical cross-sectional shape piston head is in sliding engagement therewith and sized to engage the body portion to inhibit rotation of the piston head. In an alternative embodiment the body portion is cylindrical with an eccentric aperture to receive the shaft to inhibit rotation of the piston head.

Abstract: A reciprocating cutting tool including a motor housing, a gear box connected with the motor housing, a motor disposed in the motor housing and a reciprocating mechanism disposed in the gear box. The reciprocating mechanism includes a suspending rack and a reciprocating shaft driven by the motor. The reciprocating shaft is connected to the motor by a reduction gear and an eccentric shaft. The suspending rack comprises a top plate and a bottom plate, the reciprocating shaft movably connected to the bottom plate, and would not reciprocate beyond the top plate in a reciprocating direction. Due to the reciprocating shaft not being guided and restricted by the top plate of the suspending rack, the reciprocating shaft would not extend beyond the top plate during the reciprocating motion, The present invention decreases the height of the gear box greatly relative to prior tools, and thus the height of the reciprocating cutting tool is likewise decreased, thereby increasing its application ability.

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: An actuator includes, a housing, an expandable member housed within the housing configured to expand and contract, an elongated member in operable communication with the expandable member, and a ratchet in operable communication with at least one of the expandable member and the elongated member. The ratchet is configured to allow movement of the elongated member in a first direction relative to the housing in response to expansion of the expandable member and to prevent movement of the elongated member in a second direction in response to contraction of the expandable member until the elongated member has moved a selected dimension, after which the ratchet automatically permits movement of the elongated member in the second direction.

Abstract: In an electric booster according to one embodiment of the present invention, a brake pedal is connected to a sun gear of a differential transmission mechanism corresponding to a planetary gear mechanism. An electric motor is connected to a ring gear, and an output rod is connected to a planetary carrier, and the output rod is connected to a piston of a master cylinder. When the brake pedal is operated to rotate the sun gear, planetary pinions rotate and revolve around the sun gear. As a result, the planetary carrier rotates to move the output rod forward to push the piston. As a result, a hydraulic pressure is generated in the master cylinder. At this time, the electric motor is controlled according to the rotation of the sun gear to rotate the ring gear so that the ring gear follows the sun gear. In this manner, a servo force of the electric motor is applied to the rotation of the planetary carrier.

Abstract: A fixing mechanism mounts a peripheral component to an electronic device. The fixing mechanism includes a housing, a contact member, a sliding member, a first resilient member and a link bar assembly. The housing defines a holding portion to receive the peripheral component, positioning portions and a guiding portion located on sidewalls of the holding portion. The contact member is moveably disposed in the housing adjacent to the holding portion. The sliding member resists the contact member. The first resilient member resists between the contact member and the housing. The peripheral component includes a first engaging portion and a second engaging portion. The first engaging portion is received in the positioning portion. The latching portion slides along the guiding portion until the latching portion latches the second engaging portion.

Abstract: A linear actuator unit has a slide plate which is allowed to freely move along the outer rail while causing a cover to retreat. The linear actuator unit includes: an outer rail, which is formed into a cylindrical shape, and includes the slit-opening portion formed along an axial direction thereof; the slide plate (3), which is coupled to an inner block in the hollow portion through the slit-opening portion; a cover belt, which is tensioned between both ends in a longitudinal direction of the outer rail so as to cover the slit-opening portion; a belt-guiding member, which separates the cover belt from the outer rail correspondingly to movement of the slide plate; and a seal member, which seals between the belt-guiding member and the cover belt and between the belt-guiding member and the outer rail.

Abstract: A thrust transfer device includes: a motor serving as a driving source; a sun gear rotatable to an output shaft of the motor, a plurality of nut members each provided with an outer peripheral external tooth meshed with the sun gear and provided with an inner peripheral nut side spiral screw groove; and a plurality of screw shafts, each provided, at an outer periphery thereof, with a screw side spiral screw groove corresponding to the nut side spiral screw groove, and reciprocally moved in accordance with nut rotation by fitting the screw side screw groove into the nut side screw groove; and an internal tooth gear meshed with the external tooth formed to each of the nut members. When the sun gear is rotated, the nut members perform planetary motion inside the internal tooth gear, by which the screw shafts are reciprocally moved in axial directions thereof.

Abstract: A system for moving a carriage along a guide comprises: at least one sliding block that slidingly connects the carriage to the guide; a control shaft associated to the carriage; a driving unit suitable for moving said control shaft in rotation; and rotary-translatory connecting means between said control shaft and said guide. The control shaft is movable between a working position wherein it is connected to said guide for moving the carriage by said driving unit, and an idle position wherein it is disconnected from said guide for free manual pulling of the carriage through said at least one sliding block.

Abstract: The swinging operation of a rotary striker 14 turns micro switches 11 and 12, which detect the position of a piston 9, ON/OFF. The striker 14 includes a lower-limit switch cam 15 and an upper-limit switch cam 16. The cams 15 and 16 engage with switch bosses 36 and 37 that move together with the piston 9. When the piston 9 is positioned at a lower-limit stop position L, the cam 15 becomes engaged with the boss 36 to make the striker 14 swing in the X-direction and pushes a switch button 11a of the switch 11. When the piston 9 is positioned at an upper-limit stop position U, the cam 16 becomes engaged with the boss 37 to make the striker 14 swing in the Y-direction and pushes a switch button 12a of the switch 12.

Abstract: An actuator system comprises an electric motor, a plurality of linearly extendable actuators, and a drive transmission arrangement transmitting rotary drive from the motor to the actuators, wherein the drive transmission arrangement includes a drive shaft and a gear arrangement, and wherein at least one of the drive shaft and the gear arrangement is dry-running.

Abstract: A roller for a web-processing machine, the roller having a support core, which is braced in the region of both its ends via a respective bearing arrangement, and an outer covering, which in its axially central region is mounted in a radially fixed manner in relation to the support core and in the region of its two ends is braced in a radially displaceable manner in relation to the support core by a respective additional bearing arrangement, whereby the outer covering is displaceable in the region of its two ends respectively by an actuator arranged within the outer covering, the actuator being adjustable and including two inter-mounted eccentrics to which is assigned respectively one pivoting device, whereby the two pivoting devices are controllable such that the size of the resulting eccentricity and the position of the resulting eccentricity are adjustable preferably separately from each other, the outer covering being non-rotatably connected to the support core.

Abstract: Bearing arrangement for a rotatable shaft comprising an inner bearing part for coupling to an end of the shaft, an outer bearing part for coupling to a mounting structure, and an axis of rotation, wherein at least one of the inner bearing part and the outer bearing part, at least in certain areas, possesses elastic deformability, at least in part, perpendicular to the axis of rotation, and an arrangement comprising the bearing arrangement and a shaft, as well as an oscillator comprising the latter.

Abstract: A movement conversion device (4) for a motor-driven, hand-held, power tool (2) for converting a rotational movement into a linear reciprocating movement includes an axially reciprocating spindle (10), a motor-driven driving gear (20), an eccentric member (16) displaceably supported on the driving gear (20) and extending into the connecting link guide (14) provided at a spindle end for converting the rotational movement of the driving gear (20) into the reciprocating movement of the reciprocating spindle (10), the eccentric member (16) having a first position with respect to a rotational axis (D) of the driving gear (20) in which a distance (a) between the eccentric member (16) and the rotational axis (D) is greater than in at least one second position of the eccentric member (16), and a load-controlled spacing device associated with the eccentric member (16) for automatically adjusting the distance (a) between the eccentric member (16) and the rotational axis (D) of the driving gear (20).

Abstract: The present invention relates to a motion device and a moving device in which the total size in a direction perpendicular to the longitudinal direction of an orbital element can be reduced to extremely smaller sizes and miniaturization can be accomplished. A motion device 1 of the present invention includes an orbital element 2, and moving elements 3 that are inserted into the orbital element 2 and are guided so as to be able to reciprocate in a longitudinal direction L of the orbital element 2, at ends of the moving elements 3, cylindrical protrusions 6a, which protrude in the longitudinal direction L and inserted into the orbital element 2, are formed so as to be pivotally supportable on bearings 7, and total size around the orbital element 2 in a direction perpendicular to the longitudinal direction L of the protrusions 6a are smaller than those of the moving elements 3.

Abstract: In a slide/rotation attachment unit (100) having a base plate (1) with first and second axis pins (10, 10a) being spaced from each other at a predetermined distance and a movable plate (2) with first and second hook-shaped portions (20, 20a) that can engage with the first and second axis pins, respectively, the base plate and the movable plate are joined together so that the base plate and the movable plate are rotatable relative to each other. When the movable plate rotates in one direction, the first hook-shaped portion is brought into engagement with the first axis pin, and the second hook-shaped portion is disengaged from the second axis pin. When the movable plate rotates in another direction, the second hook-shaped portion is brought into engagement with the second axis pin, and the first hook-shaped portion is disengaged from the first axis pin.

Abstract: A guiding structure includes a base and a guiding unit. The base has an opening, and an inner wall of the base, facing the opening, is formed with at least one first guiding element and at least one first restricting element disposed adjacent to the first guiding element. The guiding unit is inserted into the opening and has at least one second guiding element and at least one second restricting element. The second guiding element is correspondingly coupled to or separated from the first restricting element by deforming, bending, rotating or displacing. The first guiding element is disposed corresponding to the second guiding element.

Abstract: Linear to dynamic power multiplying device by motor lever, consisting of a motor (6) that turns a disk (3) driving a lever (5) that drives a gear (2) turning a ratchet (1) and the shaft (8), thus forming a support point on the shaft (9), multiplying the linear power of the lever (5) for dynamic shaft movement (8).

Abstract: An articulating ball joint for connecting a pair of driven members to a driving member such as a crank pin. In one embodiment, a single ball is held in a first, or inner, socket defined by a coupling member having a convex outer surface, and the first socket is held within a second, outer, socket defined in a second coupling member also having a convex outer surface, which is, in turn, engaged by a retainer.

Abstract: A motion transfer mechanism for transferring reciprocal motion to rotary motion. The motion transfer mechanism comprises at least one driving member configured to undergo reciprocal motion about a first axis and at least one clutch housing integral with the at least one driving member and configured to undergo angular displacement about the first axis during reciprocal motion of the at least one driving member. A driven member supports the at least one clutch housing and is mounted to undergo rotary motion in a direction of rotation about the first axis. At least one unidirectional clutch mechanism is mounted on the driven member and is configured to engage the at least one clutch housing for effecting rotation of the driven member in the direction of rotation during reciprocal motion of the at least one driving member.

Abstract: A drive mechanism for a vehicle propellable by muscle power is provided, wherein the drive mechanism comprises a first actuating element (104) which is moveable by a stroke along a movement path, a first driving element (211), a first gearing comprising a driving shaft (107), and first returning element (212), wherein the first driving element (211) is coupled between the first actuating element (104) and the driving shaft (107) in such a way that actuating element stroke induces a movement of the driving shaft in a first direction, and wherein the returning element (212) is coupled between the first actuating element (104) and the driving shaft (107) in such a way that it induces a movement of the driving shaft in a second direction opposite to the first direction.

Abstract: An electronic device and a retreating apparatus are disclosed. The retreating apparatus comprises at least one moving element, at least one first elastic element, an operating element, and at least one linking element. When the electronic device connects to an external device via connecting interfaces, the retreating apparatus disposed in the electronic device is capable of detaching the external device successfully from the electronic device by different working types.