Abstract: A method and apparatus for processing substrates using a multi-chamber processing system, or cluster tool, that has an increased system throughput, increased system reliability, improved device yield performance, a more repeatable wafer processing history (or wafer history), and a reduced footprint. The various embodiments of the cluster tool may utilize two or more robots that are configured in a parallel processing configuration to transfer substrates between the various processing chambers retained in the processing racks so that a desired processing sequence can be performed on the substrates. In one aspect, the parallel processing configuration contains two or more robot assemblies that are adapted to move in a vertical and horizontal directions, to access the various processing chambers retained in generally adjacently positioned processing racks.

Abstract: A multifunctional back-flowing strong-suction blower exhibits low energy consumption, mass airflow, enhanced capability of handling polluted material, high efficiency, and low noise. The strong-suction blower may also reduce the risk of pollution and corrosion of the through-flow parts in the blower housing.

Abstract: A turbine shroud assembly is configured to adequately adjust a distribution of cooling air flow such that air leakage between radial shroud legs of adjacent shroud segments is minimized, while permitting cooling air to leak between platforms of adjacent shroud segments in order to cool sides of the platforms thereof.

Abstract: A compressor radial bleed manifold and compressor case assembly includes a compressor case having one or more bleed flow exit passages therein; and a discrete bleed manifold mounted on the compressor case and having one or more inlet passages extending radially between a manifold plenum and the one or more exit passages in the mounting boss for bleeding compressor air into the manifold plenum.

Abstract: A mounting device, for mounting a plurality of fans (50) to a server chassis (70), includes a tray (20), a plurality of brackets (30), and a plurality of fasteners (40). The tray includes a plurality of pairs of mounting sections each pair fixed with a corresponding bracket. Each bracket is U-shaped and includes a pair of side plates (32) for sandwiching a corresponding fan therebetween. Each bracket defines a pair of coaxial locking holes (35?) in the side plates. Each fastener includes a pair of locking ends (42) received in the locking holes of a corresponding bracket to thereby sandwich the corresponding fan in the bracket. Each side plate defines an outlet (34) having a contour corresponding to a contour of an outlet of a corresponding fan, and each mounting section of the tray has a contour corresponding to a contour of the outlet of a corresponding fan.

Abstract: An automotive compressor is provided having a casing defining an intake section for fluid for compression, and a delivery section for delivering the compressed fluid. An impeller is movable angularly inside the casing to increase the pressure of the fluid. A distributor is carried by the intake section of the casing to conduct the fluid for compression to the impeller. The casing and the distributor are defined by separate members connected releasably to each other.

Abstract: The present invention relates to an inline fan housing assembly adaptable for connection with conduits of various diameters. The inline fan housing assembly comprises a connector collar for connection to the inlet or exhaust ports of the fan housings to adapt the fan housings for connection to a variety of conduits having diameters not designed to connect with the inlet or exhaust ports of the fan housing. The inline fan housing assembly also comprises an inner inlet ring for adapting the inlet port of the inline fan housing to direct air into motorized impellor of various sizes mounted within the inline fan housing. The connector collars of the present invention contain one or more steps, each step suitable for connection with a conduit of a different diameter. In one exemplary embodiment, the inner steps of the connection collar are removable thereby allow for increased air flow through the connection.

Abstract: A turbine blade arrangement comprises turbine blades which are secured in adjacent positions to a rotor disc with a cavity defined between root segments and platform segments. A flow deflector within the cavity is provided as an insert such that through a recessed portion coolant flow .from a coolant path is constrained to remain adjacent to a rim surface. By constraining the coolant flow to remain adjacent to the surface greater cooling efficiency is achieved. Inner surfaces of the deflector may also be coated with low emissivity materials to reduce radiant heat flux transfer. The flow deflector supports a damper member in association with the platform segments.

Abstract: A turbine airfoil a plurality of cooling holes formed in the external surface of the airfoil in fluid communication with a cooling circuit. The cooling holes have a metering section and a diffuser section opening to the external surface of the airfoil. The diffuser section has top, bottom and opposed side walls, where at least the opposed side walls and one or the other of the top and bottom walls of the diffuser section have a downstream diverging, bell-shaped configuration for achieving a flow of the cooling film from the cooling circuit with enhanced spread, enhanced attachment and less turbulence to a downstream surface of the airfoil local to each respective cooling hole.

Abstract: The fastening arrangement (26) for an impeller (22) on a shaft (14), in particular for an impeller (22) of a turbocharger on a turbocharger shaft (14), comprises a bush (34), which can be screwed onto a shaft journal (20) of the shaft (14), and a shaft-side hub extension (30) of the impeller (22) having a central recess (32), into which the bush (34) can be inserted in a frictional manner. The hub extension (30), at least in the region of its shaft-side end, is designed approximately in the form of a hollow cylinder. The fastening arrangement (26) also comprises a press sleeve (36) which can be frictionally connected radially on the outside to the hub extension (30).

Abstract: A turbofan includes a row of fan blades extending from a supporting disk inside an annular casing. Each blade includes an airfoil having opposite pressure and suction sides extending radially in span between a root and tip and axially in chord between leading and trailing edges. Adjacent airfoils define corresponding flow passages therebetween for pressurizing air. Each airfoil includes stagger increasing between the root and tip, and the flow passage has a mouth between the airfoil leading edge and the suction side of an adjacent airfoil and converges to a throat aft from the mouth. The row includes no more than twenty fan blades having low tip solidity for increasing the width of the passage throat.

Abstract: A method for assembling a turbine engine to facilitate preventing ice accumulation on the turbine engine during engine operation, the gas turbine engine including a fan assembly. The method includes coupling a plurality of fan blades to a fan rotor, and applying a polyurethane material to at least a portion of at least one of the fan blades to facilitate preventing ice accumulation on the at least one fan blade.

Abstract: An apparatus for handling rotor blades of wind power installations. An apparatus for simplified handling of rotor blades is afforded by a carrier element and at least one rotor blade receiving means fixedly connected thereto. A rotor blade is received in the apparatus during a blade fitting procedure. The apparatus may reduce the effect of the wind and the effect of mass inertia on during the blade fitting procedure.

Abstract: A method and system is provided for reducing chatter in multi-capacity compressors having disengageable eccentric structures. The multi-capacity fluid compressor includes a compression chamber having a discharge end and an inner surface. The compressor also includes a compression member having a disengageable eccentric structure allowing the compressor to provide discrete compression capacities. A valve portion is disposed adjacent to the discharge end of the compression chamber and is arranged and disposed to discharge a compressed fluid when the compression member has completed. A discharge arrangement is arranged and disposed to discharge at least a portion of fluid remaining in the compression chamber at the completion of the compression cycle. The discharge of at least a portion of the fluid remaining in the compression chamber reduces or eliminates forces on the disengageable eccentric structure to limit rotational acceleration of the disengageable eccentric structure.

Abstract: A power transmission mechanism for transmitting driving power between a shaft and a rotor connected to the shaft includes a cylindrical adapter located between the shaft and the rotor and a screw seat arranged on the shaft. The adapter has a first internally threaded portion in its inner peripheral surface and a first externally threaded portion in its outer peripheral surface. The first internally threaded portion is engaged with a second externally threaded portion of the shaft, and the first externally threaded portion is engaged with a second internally threaded portion of the rotor. The screw seat has a screw seat surface. The adapter is screwed onto the shaft such that the adapter is pressed against the screw seat surface, and the rotor is screwed onto the adapter such that the rotor is pressed against the screw seat surface.

Abstract: An engine cooling fan motor has a water baffle positioned in a water line of sight passage through structures surrounding the motor to prevent water from impacting on the air vents at the front end of the motor. The baffle blocks the water line of sight passage. In one aspect, a rear cover is spaced from the rear endwall of the motor and has one or more baffled inlets to create an airflow passage to air inlet vents on the rear endwall of the motor.

Abstract: A suction passage (1) and a discharge passage (2) for a to-be-transferred fluid are disposed in a pump body (3). A bottomed cylindrical bellows (6) is integrally coupled to the axial rear side of the pump body to form a closed space (7). The suction passage (1) has an upstream portion (1A) having a larger diameter and a predetermined passage cross section area, and downstream portions (1B) which are formed by branching the upstream portion into a bifurcated or Y-shape while reducing the passage cross section area. Two first small check valves (15) of the spring type in each of which the pressure receiving area is reduced in accordance with the reduced passage cross section areas of the smaller-diameter downstream portions (1B) are attached respectively to outlet portions of the smaller-diameter down-stream portions (1B) so as to be arranged in parallel. The outlets of the first check valves (15) are opened in the closed space (7).

Abstract: Disclosed herein is a low-pressure type orbiting vane compressor that is capable of diverging low-temperature and low-pressure refrigerant gas introduced into a shell through an inlet tube to an inlet port of a cylinder and a drive unit so as to simultaneously compress the refrigerant gas and cool the drive unit. The orbiting vane compressor comprises a vertical baffle disposed in the shell while being spaced apart from the inner end of the inlet tube, and a diverging channel defined between the baffle and the inlet tube, the diverging channel having one end communicating with the inlet port of the cylinder and the other end communicating with the drive unit. Consequently, the present invention has the effect of preventing overheating of the drive unit, and therefore, improving performance and reliability of the orbiting vane compressor.

Abstract: An oil pump is provided which includes a cam ring made of a material having a first line expansion coefficient, a pump element rotatably disposed in the cam ring and smaller in an axial length than the cam ring, a first housing member disposed on one of axially opposite sides of the cam ring and made of a material having a second line expansion coefficient larger than the first line expansion coefficient, and a second housing member disposed on the other of the axially opposite sides of the cam ring and made of a material having a third line expansion coefficient than the first line expansion coefficient.

Abstract: In an extrusion head and an extrusion method for the production of a tubular multilayer preform the extrusion head includes at least two feed paths for feeding plasticised plastic material from one or more extruders to an annular passage arrangement. The annular passage arrangement includes mutually concentric annular passages forming mutually separate flow paths for the various layers of the preform. An annular gap nozzle has an annular gap communicating with the annular passage arrangement, and at least one flow passage communicates with an annular passage of the annular passage arrangement, for the introduction of a translucent viewing strip. The flow passage communicates with the annular passage in question upstream of the annular gap in the region of separation of the flow paths.

Abstract: An injection molding machine that distinctively displays operation parameters attributed to molds, which are set by designating a mold to be used, and the other operation parameters, to thereby prevent setting errors. The machine has storage means for storing and saving the operation parameters attributed to molds, which are determined by molds, with respect to each mold, and storage means for operation parameters to be applied for operating the injection molding machine. In the storage means for operation parameters to be applied, the stored operation parameters attributed to molds are read out to be set, and the other operation parameters are each stored. When the operation parameters stored in the storage means for operation parameters to be applied are set and displayed, the display appearances of the operation parameters attributed to molds and that of the other operation parameters are differentiated from each other.

Abstract: Rotary press with a rotor, rotatingly drivable around a vertical axis of rotation, which has a die plate with die bores and upper and lower punches guided in guidings, radial cams for the upper and lower punches, at least one compression station with upper and lower pressing roller, at least one filling equipment and at least one stripping device for pressed articles which are ejected from the die bores, characterized in that the rotor has an annular plane situated radially outside of the graduated circle for the die bores, which is concentric to the axis of rotation and is lowered with respect to the upper side of the die plate about a predetermined degree, first deflection portion direct the ejected pressed articles to the annular plane and second deflection portion direct the pressed articles from the annular plane towards the outside.

Abstract: An apparatus to control displacement of a body spaced-apart from a surface includes a flexure system having a first flexure member defining a first axis of rotation and a second flexure member defining a second axis of rotation. A body is coupled to the flexure system to move about a plurality of axes. An actuation system is coupled to the flexure system to selectively constrain movement of the body along a subset of the plurality of axes.

Abstract: The invention provides a method for controlling the width of a plurality of extruded filaments comprising providing a polymer supply and an extrusion die comprising a plurality of extrusion capillaries and a plurality of counterbores allowing fluid communication between the extrusion capillaries and polymer supply, providing an adjustable insert for interrupting fluid communication between the polymer supply and at least one extrusion capillary, providing at least one fluidized polymer, conveying the polymer through the polymer supply, counterbores and extrusion capillaries to extrude a plurality of filaments, and interrupting the fluid communication between the polymer supply and at least one extrusion capillary by adjusting the insert.

Abstract: A stamper and a transfer apparatus that utilizes the stamper, which is capable of accurately transferring its own pattern onto an article, such as a substrate, without being affected by any distribution of convex portions on the stamper surface or any contour of the substrate. The stamper has a fine concave-convex pattern on a surface thereof for forming a fine structure on a substrate using a pressing machine. The stamper is flexible and includes a buffer formed on an opposite side to the side on which the concave-convex pattern is formed. The buffer has a longitudinal distribution of moduli of elasticity.

Abstract: The present invention provides a valve nozzle that can restrain property changes of an injecting melted resin by more strictly controlling the temperature of the injecting melted resin, wherein in the internal space or the rear space of a valve nozzle main body, a gate opening and closing mechanism is disposed which includes a torpedo provided with a coolant channel, a piston including a head portion, a shaft portion that is continued from the head portion and disposed in the internal space of the torpedo by being provided with a gap to serve as a resin flow channel on its outer circumferential surface, a tapered surface that is connected to the rear end of the shaft portion and serves as a surface for receiving the pressure of a resin in the resin flow channel, and a coil spring that presses the rear end part of the piston toward a gate, and when the pressure of the melted resin is at a predetermined value or less, the piston is pressed by the coil spring toward the gate to close the resin flow channel, and

Abstract: A gating structure (13) for molding connects with a mold cavity (300). The gating structure includes a first gate (100), a second gate (200), an ejector sleeve (400) and an ejector pin (500). The second gate connects with the first gate at an angle. The ejector pin extends through the ejector sleeve. One part of the ejector pin fixes in the ejector sleeve, the other par of the ejector pin is received in the second gate.

Abstract: The present invention provides multi-layer adhesives and methods that are useful for bonding orthodontic appliances to a tooth structure. The multi-layer adhesives can be precoated on an orthodontic appliance, or alternatively, they can be provided on an adhesive delivery system for transfer to an orthodontic appliance. The multi-layer adhesives and methods preferably provide a useful balance of properties for bonding orthodontic appliances to the tooth structure.

Abstract: Micro-regional force application improves the control of the orthodontic movement of teeth in all six degrees of freedom. Micro regional force application utilizes an elastic repositioning appliance, a tooth positioner, a polymeric shell, or preprogrammed series of polymeric shells. The key components of the invention are the envelope of freedom, the force applicators, force couplers, counterpart coupling, vector modifiers, seating guides, decouplers, and forced balance points. Further, computerized finite element analysis determines the center of resistance and the center of rotation for each tooth to be moved. The present invention gently rotates and translates one or more teeth to a desired straight position within a treatment plan.

Abstract: A process is provided for producing a dental restoration piece that has a frame with first and second portions and a blended synthetic material covering a first portion of the frame, the heat expansion coefficient of the blended synthetic material being different than the heat expansion coefficient of the frame material. Prior to a thermal treatment of the dental restoration piece, at least the second portion of the frame is covered with a heat protection paste, whereby the heat protection paste limits the increase in temperature of the frame resulting from thermal treatment of the dental restorative piece to effect curing of the blended synthetic material to a lesser temperature value than if the heat protection paste had not been applied onto the dental restorative piece. Also disclosed is a kit for practicing the process.

Abstract: A conducting strip for a connection device comprises a first conducting strip, a second conducting strip, and an elastic clipping element. One side of the second conducting strip is contacted with one side of the first conducting strip, and the two contacted sides are clipped by the elastic clipping element so that the first conducting strip and the second conducting strip can be connected movably to provide conductive purpose and assembled easily to reduce costs.

Abstract: A hinge has two hinge parts for connecting two device parts of a portable device. The hinge parts can be moved relative to each other so as to allow the portable device to operate in a number of positions. For example, in a mobile phone with a sliding cover to expose the phone keyboard when the mobile phone is operated in an open position, the hinge parts are also configured to allow the sliding motion of the sliding cover. Furthermore, electrically conductive segments are provided on the hinge parts so that electrical contacts between the device parts can be achieved when the portable device is operated in different positions. Additionally, an optical conduit is provided through the hinge so that optical signals can be conveyed between the device parts when the portable device is operated in different positions.

Abstract: A foldable power supply device includes a first socket, a second socket, and a pivoting unit. The first socket has multiple sets of first plugging holes and first conductive plates. The second socket has multiple sets of second plugging holes and second conductive plates. The pivoting unit is located between the first socket and the second socket. The direction of the rotation shaft of the pivoting unit is not parallel to the plugging direction of the first plugging holes and the second plugging holes. Thereby, the foldable power supply device can be opened into a block type to lower its height and be used as a multi-hole type. Alternatively, the device can also be folded to become a vertical type so that one side of the device can align with the wall, and the plugs or the transformers can be plugged into the device in two face-to-face directions.

Abstract: A card-edge board connector is provided which does not require a relay board, does not make connection of the card-edge board fixed at a certain position or does not cause a difference in propagation time of a signal even if connecting terminals of the card-edge board are disposed in two rows. The card-edge board connector includes a first connector on which a card-edge board is mounted, a second connector on which a board is mounted, a hinge for holding the first and the second connectors capable of rotational movement, and a flexible connecting board connected to between the first and the second connectors, for electrically connecting the card-edge board and the board to each other.

Abstract: A coaxial cable distributor, wherein three or more junction plugs (2) are fitted to the surface of a casing (1) having a hollow therein, the external contacts of the junction plugs (2) are electrically connected to each other through the casing (1), the center contacts of the junction plugs (2) are electrically connected to each other in the hollow of the casing (1), and at least two of the junction plugs (2) are rotated about the rotating axis in a direction orthogonal to the projected direction thereof from the surface of the casing (1) while maintaining the electrical connection between the external contacts and between the center contacts.

Abstract: A land grid array (LGA) interposer structure, including an electrically insulating carrier plane, and at least one interposer mounted on a first surface of said carrier plane. The interposer possesses a hemi-toroidal configuration in transverse cross-section and is constituted of a dielectric elastomeric material. A plurality of electrically-conductive elements are arranged about the surface of the at least one hemi-toroidal interposer and extend radically inwardly and downwardly from an uppermost end thereof into electrical contact with at least one component located on an opposite side of the electrically insulating carrier plane. Provided is also a method of producing the land grid array interposer structure.

Abstract: A connector assembly includes a frame mounted on a printed circuit substrate having a plurality of contact pads, and a spring member configured for insertion into the frame. The spring member has a flexible circuit supported thereon. The spring member and frame are shaped to exert biasing forces in two non-parallel directions when the spring member is inserted into the frame.

Abstract: An electrical connector for connecting a flat-type circuit board (1) includes a pressing member (3) to press the flat-type circuit board (1) to a member to be connected (P). The pressing member (3) includes a section to be supported by a support member (2); a bent section (6); a flat section (7); and a pressing section (8) having elasticity and facing the flat section, with the flat section (7) and the pressing section (8) being provided across the bent section (6). The pressing section (8) holds the flat-type circuit board (1) by elastically pressing it toward a corresponding connecting section (P2) in a state that the flat-type circuit board (1) is between the pressing section (8) and the corresponding connecting section (P2).

Abstract: A clamping device (100) for clamping a digital camera module (300) includes a base (12) and two legs (14). Two legs extend from two sides of the base. Each leg has at least one foot (18). The at least one foot defines an arcuate surface (180). The arcuate surfaces cooperatively define a space for receiving the digital camera module.

Abstract: A connector includes contacts and an insulator. Each contact includes a contact portion, a first fixed portion, an elastic portion substantially in the form of a crank, a second fixed portion and a connection portion. The insulator includes a fixation block to which the second fixed portions are fixed, and a movable housing to which the first fixed portions are fixed. The movable housing is fixed only to the contacts and held by the elastic portions in a floating condition away from the bottom surface of the fixation block. The fixation block has a wall for preventing short circuit when the connector is being mounted on a substrate. A floating amount of more than 0.7 mm can be achieved with a simple construction without causing short circuit with a substrate when the connector is being fitted with a mating connector and without causing any failed connection.

Abstract: A portable computer including a housing, a first circuit board and a rotating element is provided. The housing has a first opening and a second opening. The first circuit board with a first connector and a second connector is disposed in the housing. The first connector and the second connector are disposed on the circuit board. In addition, the rotating element has a first portion and a second portion, wherein the first portion is pivoted to the housing, and a part of the first portion passes through the first opening to be exposed outside the housing. The second portion is fixed to the first circuit board. The first circuit board rotates with the rotating element relative to the housing.

Abstract: An open terminal connector formed of a plug-in connector, a circuit board, a terminal block, baffles, an electrically insulative inner housing and an electrically insulative outer housing, in which the baffles stop the molten material from entering wiring holes of the terminal block during molding of the inner housing and the outer housing and reinforce the structural strength of the connector after molding of the inner housing and the outer housing, and the outer housing is directly injection-molded on all parts to prohibit the internal metal conducting terminals and the circuit board from direct contact with the outside air, allowing the connector to be used under a high humidity and/or critical temperature environment.

Abstract: A connecting device of a flexible printed circuit board has a reinforced backlight FPC board, is free from bad contact resulting from insufficient insertion of a terminal portion of a flexible printed circuit board into a connector, and ensures good connection without leaving contaminants, scratches, or the like on contacts of the terminal portion. The connecting device of a flexible printed circuit board has a terminal portion having a contact formed as a printed conductor in a tip end portion of a film-form flexible printed circuit board, and a connector having an insertion slot into which the terminal portion is inserted and a contact fitted inside the insertion slot and connected to the contact of the terminal portion.

Abstract: A pair of mating connectors includes a receptacle having an insulative housing and at least one conductive receptacle contact with a pair of spaced walls forming a plug contact receiving space. The plug connector has an insulative housing and at least one conductive contact having a pair of spaced walls which converge to form a projection engageable in the plug receiving space of the receptacle contact. The electronic power connectors can also be modified to accommodate connections for an external AC power supply. The connector housing incorporating the AC power connection capability can accommodate different forms of AC power supply termination contacts, such as spade-type contacts having a spring-like plug for receiving discrete quick connect socket terminals.

Abstract: A connection system. The connection system includes a connection receptacle comprising a first component coupled to a chassis and a second component coupled to the first component. The first and second components are collapsed into a compact configuration when the connection receptacle is in a closed position. According to the system and method disclosed herein, implementing the receptacle as two separate components allows for a compact connection system.

Abstract: An electronic apparatus includes a cover, a latch fixable to the cover and a base pivotally connectable with the cover. The latch includes a hook having a shank portion and a hook portion extending from the shank portion, and the shank portion defines a slanted surface thereon. The base includes a retaining portion engagable with the hook portion of the latch for fixing the cover to the base, and a stopper portion along which the slanted surface of the shank portion is slid thereby causing the cover to lift away from the base.

Abstract: The invention comprises a top board with a plurality of buckling portions, each of two sides of the top board has a bearing hole, a sustaining frame connected with the top board, a spring hole provided in one side of the top board, a cover with an arc rim, two end portions of the cover pivotably mounted in bearing holes of the top board, and a spring connected with the spring hole of top board and providing an elasticity to the cover. The side of the sustaining frame corresponding to the arc rim has a stop projection extending therefrom, the cover corresponding to the stop projection has a receiving notch cooperating with the stop projection to stop the cover when forced to pivot. One side of receiving notch in the cover near the sustaining frame has a flange extending therefrom upwards toward the vertical card-inserting direction. The top of the flange is horizontal for further cooperating with stop projection when the cover is forced to pivot.

Abstract: A card connector includes an insulating housing (10), a number of contacts (20), an ejector (30) and a metal shell (40). The insulating housing (10) defines a card receiving space (13) with a card insertion/ejecting direction. The contacts (20) are retained in the insulating housing. The ejector (30) is assembled to the insulating housing, including a slider (31) movable along the card insertion/ejecting direction, an ejecting arm (32), a resilient member (34) and a locking equipment, the ejecting arm protrudes into the card receiving space and has an upright wall (324), a blocking wall (325) for contacting and ejecting the card directly and a horizontal reinforce wall (326), which are linked with one another and defines a space to receive a corner of the card.

Abstract: An apparatus and method for installing an electrical support structure, such as a printed circuit board or card in a computerized device, are disclosed. In at least some embodiments, the apparatus includes a connector assembly that includes a first structure having a first guiding surface, a second structure having a second guiding surface, a third structure having at least one additional guiding surface that interfaces the other guiding surfaces, and an electrically conductive component supported by at least one of the structures. Movement of the first structure in relation to the second structure in a first direction causes additional movement of the third structure in a second direction due to interaction among the guiding surfaces. Further, at least a portion of the component moves, in response to the additional movement, to or away from a first position at which the component is capable of establishing an electrical connection.

Abstract: A memory card socket structure includes an arm rotatably moved by an insertion and an extraction of a memory card into and from a card compartment and a memory card detecting function for detecting whether the memory card is inserted into the card compartment. The arm includes a main portion to be in contact with the memory card and a sub portion disposed opposite to the main portion with respect to a rotation shaft thereof, and is located at a rear side of the card compartment. The arm is engaged with a torsion spring whose first end portion is engaged with a first stationary contact but whose second end portion is engaged with the sub portion, whereby the main portion is biased by the spring toward an entrance of the card compartment.