Abstract: An electrical assembly connector for connecting a flexible assembly having a plurality of flexible assembly electrical contacts to a rigid assembly having a connector receptacle with a plurality of attachment element electrical contacts. The connector comprises an intermediary device configured to electrically connect the rigid assembly and the flexible assembly. The intermediary device has a plurality of connector electrical contacts. The intermediary device electrical contacts are exposed on a first base side and on a second base side of the intermediary device. The intermediary device electrical contacts exposed on the second base side are configured to mechanically and electrically couple to the flexible assembly electrical contacts, and the intermediary device electrical contacts exposed on the first base side are configured to electrically and mechanically couple to the attachment element electrical contacts.

Abstract: Disclosed is a connector for a digital band, which is attached to the digital band and is quickly and easily attachable to an external circuit. The connector for a digital band includes a body portion having one end attached to the digital band, and at least one conductive portion connected to the digital yarn, and an insertion portion attached to the other end of the body portion and having at least one land connected to the conductive portion and exposed to the outside.

Abstract: An optical recording apparatus includes a traverse, a control circuit board, a shield substrate and an flexible flat cable (FFC). The traverse includes a spindle motor for rotating an optical disc and an optical pickup head for reading and/or writing the optical disc, the optical pickup head moves along a radial direction of the optical disc when reading and/or writing the optical disc. The FFC electrically connects the optical pickup head and the control circuit board and transmits signals between them, and a portion of the FFC adjacent to the second end is bent to facing the shield substrate. The shield substrate includes at least two limiting members, and the at least two limiting members are positioned at two opposite sides of the portion of the FFC facing the shield substrate to enable the portion of the FFC facing the shield substrate to move along the first direction.

Abstract: A flat circuit connector includes a first connector which is resin molded at an end part of a flat circuit body and a second connector including a terminal. The first connector includes a block part made of resin and a flange part. The flange part is integrally formed at a rear side in a direction in which the block part is fitted. A projecting wall is provided on a surface of the flange part which is parallel to a main surface of the flat circuit body. The second connector includes a first peripheral wall with which the block part is fitted, and a second peripheral wall which is integrally formed at the rear side of the first peripheral wall. The second peripheral wall is formed with a cut part in which the projecting wall is fitted.

Abstract: A SATA connector assembly is provided with an insulating housing, a plurality of data and power terminals, a PCB and an FFC, wherein the data and power terminals inserted in the insulating housing, the PCB secured to the insulating housing, the FFC soldered on the PCB, the data and power terminals are electrically interconnected the FFC by the PCB. The provision of the unitary construction feature of FFC can save the production cost due to its eliminating cable management equipment and the step of cable managing processes.

Abstract: A flexible printed circuit board (FPCB) assembly including a plurality of FPCBs configured to be plugged into a single combination slot of a single connector, each of the FPCBs including a body, and a plug unit at an end portion of the body, wherein the plug units of the plurality of FPCBs are configured to be combinedly plugged together into the single combination slot.

Abstract: An electrical assembly combination comprises (a) a rigid assembly having a plurality of attachment element electrical contacts, (b) a flexible assembly having a plurality of flexible assembly electrical contacts, and (c) an intermediary device disposed between the rigid assembly and the flexible assembly. The intermediary device has connector electrical contacts including a first set exposed on a first base side and a second set exposed on a second base side. Each intermediary device electrical contact connects with an attachment element electrical contact or a flexible assembly electrical contact. Each attachment element electrical contacts is removably secured and electrically connected to the first set of intermediary device electrical contacts, and each of the flexible assembly electrical contacts is removably secured and electrically connected to the second set of intermediary device electrical contacts.

Abstract: Push-on friction fit connectors for LED light strips form continuous flexible ribbon light strips. The low voltage light strips are cut at contacts periodically exposed along the strips. Ends of the strips with exposed contacts are pushed into receivers. Bent inward wires make frictionally connect contacts at ends of the strips. Wires extending through edges of the receivers are soldered to exposed contacts on printed circuit boards on which the spaced receivers are mounted. Circuits with contacts on the boards are connected to wires extending from the spaced receivers. Tops and sides of the receivers and bottom edges of the circuit board are protected by two-part outer covers. The covers are bonded or sonically welded to the receivers and the circuit board, leaving only outer ends of the receivers and their openings exposed.

Abstract: An electrical connector includes an outer housing having two side arms extended from two opposite lateral sides of a holder base thereof and defining with the holder base a sliding space, a movable inner housing movable in and out of the sliding space and having two upright sidewalls at two opposite lateral sides of a bottom panel thereof and defining with the bottom panel a mating space, mating contact pins mounted at the bottom panel of the movable inner housing and partially suspending in the mating space, and a flexible connection interface electrically connected with the mating contact pins and extending out of the movable inner housing and the outer housing for connection to an external transmission interface.

Abstract: A power cable connector includes a housing having a mating end and a cable end. The housing has a chamber extending between the mating end and the cable end. The housing has an engagement feature configured to engage a socket connector extending from a substrate. A flat cable is received in the chamber. The flat cable extends from the cable end. The flat cable has a mating portion extending from the mating end. The mating portion is configured to be received in the socket connector such that the flat cable directly engages a power terminal of the socket connector.

Abstract: An FPC plug, which fits with another connector, comprises a substrate part, a conductive pattern on the surface of the substrate part, a cable part and a connecting part connected to an end of the cable part. The connecting part includes a protruding terminal engaging a terminal of the other connector. The terminal is formed integrally with, and protrudes from a surface of, the conductive pattern; and includes a base end part connected to the surface of the conductive pattern, an upper end part having a width at most equal to the width of the base end part, and a side surface part between the upper end and base end parts. The side surface part recedes toward the inner side in the width direction more than the base end and upper end parts, and includes a minimal point at which the width is at a minimum.

Abstract: An apparatus and method for detecting a presence of a conductive object on a sensor array of a first circuit board using active electronic components of a second circuit board, which is coupled to the first circuit board. The apparatus may include a first circuit board, which includes a sensor array of sensor elements, and a second circuit board, coupled to the first circuit board, including sensing circuitry to measure capacitance on the sensor array of the first circuit board. The method may include measuring a capacitance on the sensor array using the active electronic components of the second circuit board, and processing the measured capacitance.

Abstract: Provided is a terminal connection device capable of suppressing deflection of a flexible integrated wiring. A terminal connection device for connecting a terminal portion of a flexible integrated wiring to a connector includes a first member having a mounting portion capable of mounting thereon the terminal portion, and an inclined portion formed in a rear end portion thereof located in an extending direction of the flexible integrated wiring; and a second member having a pressing portion formed so as to press the terminal portion, and a bending portion formed on a rear end portion located in the extending direction and formed along the inclined portion of the first member. The second member is formed so as to be attached to the first member in a state where the pressing portion presses the terminal portion and the bending portion bends the flexible integrated wiring along the inclined portion.

Abstract: Disclosed is a structure of electromagnetic wave resistant connector for flexible flat cable. A flexible flat cable defines an insertion device mounting section to which an insertion device is mounted. The insertion device includes a metal member that is at least partly formed of a metal material. The flexible flat cable forms thereon conductive traces on which an insulation layer is provided. The insulation layer has a surface, which forms, in at least a portion thereof, a conductive shielding layer. The conductive shielding layer extends to the insertion device mounting section, so that when the insertion device is mounted to the insertion device mounting section, electrical connection is formed between the metal member of the insertion device and the conductive shielding layer.

Abstract: A flat cable includes a plurality of conductors arranged in parallel and exposed at both end portions in a longitudinal direction thereof, an insulation film covering the plurality of conductors except the exposed both end portions, and a reinforcing member that covers the plurality of conductors along a width direction of the plurality of conductors, is provided on a surface of the insulation film in a part of a region including an edge of the insulation film, and includes a metal plate and an insulative covering layer for covering the metal plate.

Abstract: Disclosed is a flat signal transmission cable with bundling structure, including at least one flexible circuit. The flexible circuit includes a plurality of clustered flat cable components that are formed by slitting in a direction parallel to extension direction of the flexible circuit to impose free and independent flexibility for bending to each clustered flat cable component. At least one bundling structure is formed on a lateral side edge of a predetermined clustered flat cable component of the cluster section of the flexible circuit. The bundling structure forms a fastening section. When the clustered flat cable components of the cluster section of the flexible circuit are stacked to form a bundled structure, the bundling structure bundles the plurality of clustered flat cable components and is secured by being fastened by the fastening section.

Abstract: A flat cable includes a plurality of conductors arranged in parallel, an insulating member covering the plurality of conductors, a first reinforcing member on a surface of an end portion of the insulating member, and a second reinforcing member on an opposite side of the first reinforcing member across the conductor and the insulating member. The first reinforcing member includes a reinforcing metal plate including an end portion bent toward the second reinforcing member, a covering member covering at least a portion of a periphery of the reinforcing metal plate, and an adhesive interposed between the reinforcing metal plate and the covering member and between the covering member and the insulating member to bond the reinforcing metal plate to the covering member and the covering member to the insulating member. The second reinforcing member has a rigidity greater than that of the covering member of the first reinforcing member.

Abstract: To provide a connector capable of assuring contact pressure between a terminal and a flat cable without disposing a metal beam supporting an actuator. In the connector of the Present Application, a housing has a convexity-opposing a terminal, and an actuator has a concavity mating with the convexity. An axle disposed in the concavity is inserted into a bearing disposed on the convexity. The actuator has a cam fitting between the convexity and the terminal, and is disposed so as to be able to turn between a sandwiched position at which a flat cable is sandwiched between the cam and the terminal and a release position at which the sandwiching is released.

Abstract: Provided is a flexible-circuit-board cable having a positioning structure. A connection zone is defined in a free end of the flexible-circuit-board cable and is provided with a plurality of conductive contacts. The connection zone has a first surface on which at least one projection section is formed and a second surface. A shielding layer overlaps the projection section and a portion of the first surface. The second surface of the connection zone is also bonded to a shielding layer. When the connection zone of the flexible-circuit-board cable is inserted into an insertion space defined in a connector, the first and second local zones of the connection zone formed by the shielding layers and the projection section are put into engagement with and thus positioned and retained by walls on opposite sides of the insertion space of the connector to thereby fix within the connector.

Abstract: A flat cable for connecting a plurality of devices includes a plurality of signal lines which are divided into a plurality of signal groups, wherein at least a part of the signal groups are separated by a separating section; and a plurality of connectors which are respectively provided at opposite ends of the plurality of signal lines and respectively connectable to the plurality of devices.

Abstract: A connector with which a cable assembly with suppressed generation of a noise during high-speed signal transmission can be formed, and a cable assembly using the connector. The connector includes: a substrate; multiple signal terminals provided parallel to each other on one surface of the substrate; and a ground layer provided on another surface of the substrate Each of the signal terminals and the ground layer are disposed in such a manner that at least a portion of the ground layer and at least a portion of each of the signal terminals are superposed on each other with the substrate therebetween. Multiple holes are formed in the portion of the ground layer superposed on each of the signal terminals. A largest diameter of each of the holes is smaller than a distance between the centers of the signal terminals adjacent to each other.

Abstract: Disclosed is a detachment and displacement protection structure for insertion of flexible circuit flat cable. An inserter positioning section is formed on a flexible circuit flat cable and coupled with an inserter, which includes a metal member and a plastic member. In assembling, the plastic member is first positioned on a first surface of the inserter positioning section of the flexible circuit flat cable, and then the metal member is fit over the plastic member. A detachment and displacement protection structure is provided on the inserter positioning section to constrain the inserter from displacing and detaching in a flat cable extension direction due to being acted upon by an external force when the inserter is positioned on the inserter positioning section.

Abstract: A flexible flat cable connecting structure for connecting a flexible flat cable in which a plurality of rectangular conductors are provided in parallel and a plurality of connector terminals arranged at an array pitch different from that of the rectangular conductors comprises an intermediate cable arranging member one end of which is coupled to the connector terminals and in which a plurality of branch conductors are provided in parallel which are set to have mutually different longitudinal dimensions according to the array pitch. The intermediate cable arranging member is laid on the flexible flat cable so that the intermediate cable arranging member and the flexible flat cable are in the same plane and form an angle. The other ends of the branch conductors of the intermediate cable arranging member are connected to the respective rectangular conductors.

Abstract: A connector and a connecting structure of a flexible flat cable are provided. The connector includes a main body, an electrical terminal and a cover plate. The main body has a sidewall and a boss. The sidewall and the boss define a groove therebetween. The electrical terminal is in a bent shape. One end of the electrical terminal is disposed on the boss. The cover plate has a cover portion and an engaging portion. The cover portion covers on the boss. The engaging portion is inserted into the groove of the main body. The electrical terminal is partially located between the boss and the cover plate. The present invention further provides the connecting structure of a flexible flat cable. The advantage of the present invention is that: by disposing the groove on the main body, the cover plate is inserted into the groove for engaging the flexible flat cable connected to the connector, thereby preventing the flexible flat cable from releasing from connector to increasing the mounting reliability.

Abstract: Methods and systems for forming discrete wire ribbon cables for use in electronic networks are provided. In some embodiments, the organizer may include an upper bracket and a lower bracket. The lower bracket may be configured to mate with the upper bracket. The upper bracket and the lower bracket may combine to define a plurality of holes. The plurality of holes may be sized to at least partially enclose a set of discrete conductors. Each of the set of discrete conductors may be individually insulated.

Abstract: A PALS compliant routing system includes flexible fabric cabling routed through the webbing of a PALS grid. A first connector or device is coupled to the cabling. Other connectors coupled to the cabling subsystem include a retention mechanism configured to retain them in the channels of the PALS webbing.

Abstract: A connector is provided in which the number of components required for connecting operation can be reduced, and the manufacturing cost and weight thereof can be reduced. A connector housing 11 has an opening portion 11A that accommodates a mating connector when the connector is engaged with the mating connector. The connector housing 11 supports a flat cable 40 so that one end of the flat cable where the conductors 41 are exposed by removing the insulating sheath is arranged at the opening portion 11A. At least one of the conductors 41 exposed at the one end of the flat cable 40 is brought into contact with a terminal of the mating connector when the connector is engaged with the mating connector.

Abstract: The present invention discloses a flat cable connection wire assembly including a flexible flat cable and a connector, and the flexible flat cable includes a plurality of core wires, and the connector includes a plastic body and a plurality of terminals for an electric connection. The plastic body includes a plurality of slots arranged with a specific interval apart from one another and disposed at an end of the flexible flat cable for positioning each terminal, such that a specific interval is formed between terminals and provided for soldering each core wire with each terminal in the slot, while coupling with the connector. The invention provides a more secured and reliable structure of the flat cable connection wire assembly.

Abstract: A flat cable wiring structure includes a cable main body and a reinforcement piece. The cable main body includes conductors and an insulating film covering the conductors, and is configured to be wired near portions of a wiring board where leg portion of an electrical component protrudes from a surface of the wiring board. The reinforcement piece is superimposed on a partitioned area of an outer surface of the insulating film. The partitioned area is an area where the outer surface of the insulating film comes into contact with the leg portion in a case where the outer surface of the insulating film comes into contact with the leg portion due to a deformation of the cable main body.

Abstract: A flex cable for a head stack assembly of a hard disk drive comprises a base film, a first adhesive layer coupled with the base film, and at least one interrogation trace and at least one signal trace coupled with the first adhesive layer. The interrogation trace is configured to be probed to measure a deterioration of electrical conductivity. The flex cable has a second adhesive layer that is coupled with the interrogation trace, the signal trace, and the first adhesive layer. The flex cable comprises a cover film coupled with the second adhesive layer.

Abstract: A low profile flat printed circuit connector has a plurality of terminals supported along a support bar. The terminals are spaced apart from each other and extend lengthwise in a connector housing. The terminals have body portions that engage the support bar and body portions that extend forwardly thereof. Contact portions are joined to the body portions and extend rearwardly and terminate in free ends so that they form a series of cantilevered contacts.

Abstract: An engaged protrusion is formed in a flat cable connected to a connector. The housing of the connector has an engaging protrusion rising in front of the position in which the engaged protruding portion is arranged when the flat cable is connected. A reinforced metal fitting has a reinforced protrusion raised along the engaging protrusion. The rear surface of the engaging protrusion is positioned to the rear of the rear surface of the reinforced protrusion. The rear surface of the reinforced protrusion is formed so as to extend upward and forward.

Abstract: A connector is adapted to mount a FPC board. The connector includes a base and a cover. The base includes an opening and a first connecting portion located at two sides of the opening. The cover is pivotally connected to the base, and includes a second connecting portion, wherein when the cover is turned and then the second connecting portion is engaged with the first connecting portion, there is an accommodating space formed between the cover and the opening of the base for accommodating the FPC board, and the first and second connecting portions are adjacent to the position portion, whereby the position portion cannot escape from the accommodating space.

Abstract: A flat restorable cable has a cable body and two connectors. The cable body is wound to have a spirally wound form. The cable body is extended by pulling two ends of the cable, and restores back to the original spirally wound form once either end of the cable is released. The two connectors are securely mounted to respective ends of the cable body and used to respectively connect with two external compatible interfaces. As a result of less part required, compact size and thin thickness, the flat restorable cable addresses an inexpensive and portable solution to connect two electronic devices over a short distance.

Abstract: A cable assembly (1000) includes an insulative housing (11); a cable (14) having a plurality of wires (141) arranged in a row along a horizontal direction; a plurality of contacts (13) mounted to the insulative housing, and each of the contacts having a main portion (132), a mating portion (131) extending forwardly from the main portion and a tail portion (133) extending rearwardly from the main portion, the tail portion having a taper end inserted into a corresponding wire along an axial direction.

Abstract: A wire insertion and connection structure includes a plurality of wires that extends in a substantially parallel manner. Each wire includes a conductor and an insulation layer enclosing the conductor. Each wire has an end forming an insertion end, and each conductor has a portion exposed outside the respective insertion end to form a conductive engagement section. The insertion ends of the wires are coupled to an insertion assisting unit. The insertion assisting unit forms a plurality of positioning slots, which is distributed in a surface of the insertion assisting unit in a substantially parallel manner and spaced from each other by insulation sections.

Abstract: A cable which is provided so as to surround an outer surface of a conductor by an insulator, which is planar and which is divided into one surface and the other surface, includes a first terminal portion that is formed by at least a portion of the conductor being exposed to the one surface, and a second terminal portion that is extended from the first terminal portion and is formed by at least a portion of the conductor being exposed to the other surface. A cable connector according to another embodiment comprises a plurality of contact protrusions where come into contact with a planar cable, and at least one of the contact protrusions has a protruding length different from a protruding length of one of other contact protrusions. Accordingly, it is possible to notably reduce a possibility of poor connection.

Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.

Abstract: A system including a flexible mount that can be coupled to a computing device. A port can be attached to the flexible mount. The flexible mount can conform to the chassis of the computing device.

Abstract: A flat cable for connecting a plurality of devices includes a plurality of signal lines which are divided into a plurality of signal groups, wherein at least a part of the signal groups are separated by a separating section; and a plurality of connectors which are respectively provided at opposite ends of the plurality of signal lines and respectively connectable to the plurality of devices.

Abstract: An electrical connector comprising a housing provided with an opening through which an FPC is inserted into the housing, a plurality of conductive contacts arranged on the housing for coming into contact with signal connecting terminals on the FPC inserted in the housing, and a conductive shell mounted on the housing and provided therein with a holding member operative to hold the FPC inserted in the housing and a releasing member extending from the holding member to be operative to release the FPC from holding by the holding member, wherein the holding member includes an engaging projection for engaging with an engaging edged portion provided on the FPC inserted in the housing and the releasing member includes a handle portion positioned on the outside of the housing to be handled for causing the engaging projection of the holding member to disengage from the engaging edged portion on the FPC inserted in the housing.

Abstract: A connector and a display apparatus having the same. The connector receives a flexible substrate to transfer signals from the flexible substrate to an external device. The connector includes a housing, a first support part, and a second support part. The housing has a receiving space to receive the flexible substrate. The first support part has a first concave-convex part protruding toward the receiving space. The second support part has a second concave-convex part protruding toward the first concave-convex part. Concave and convex parts of the first concave-convex part convex and concave parts of the second concave-convex part engage the flexible substrate to fix the flexible substrate, and at least one of the first and second support parts electrically contacts the flexible substrate.

Abstract: A cable connector includes an insulative housing defining a mounting chamber, a bottom surface positioned at the bottom of mounting chamber and a number of longitudinal ribs formed on the bottom surface while extending upwardly beyond the bottom surface. Multiple contacts are fixed in the insulative housing and include a number of soldering tails under an arrangement that each adjacent two soldering tails are separated by one of the ribs. A space between adjacent edges of the adjacent two soldering tails is much bigger than a width of the corresponding rib which is located between the adjacent two soldering tails for preventing short circuit of the soldering tails.

Abstract: A SAS panel mount cable assembly for providing access of target hard-drive resources to an initiator-host includes an initiator-side connector, two target-side connectors, and a wire-harness. Each of the two target-side connectors includes a power-link portion, a signal-link portion, an interface separating the power-link portion and the signal-link portion, and a plurality of LEDs for indicating activity and fault-detection. A plurality of power-wires electrically connects the wire-harness to the power-link portions of the two target-side connectors, and two signal-link cables connect the initiator-side connector to the signal-link portions of the two target-side connectors.

Abstract: An electronic guitar harness component connector uses ribbon cables and circuit boards to interconnect electronic components in an electric guitar harness. The use of ribbon cables and circuit boards to interconnect electronic components in the harness solves the problem of hand-soldered joints of discrete wires. It eliminates the need for the hand-soldered joints of discrete wires, and multiple wires. Discrete wires are replaced with a single ribbon cable and/or circuit boards to interconnect electronic components.

Abstract: A waterproof connector for a flexible substrate includes: a flexible substrate which includes an insulating film with a conductive pattern formed thereon; a connection terminal joined to the conductive pattern at a terminal section of the flexible substrate; a housing which accommodates the connection terminal; a retainer which includes a vertically assembled pair of members, a forward end thereof holding the connecting section of the conductive pattern and the connection terminal and a rear end thereof surrounding the flexible substrate; a hot-melt adhesive provided on an inner circumference of the retainer at non-joint areas with the flexible substrate and provided on an outer circumference of the retainer so as to make the flexible substrate and the retainer adhere closely to each other; engaging member provided in the outer circumference of the retainer; and receiving member provided in the housing. The engaging member and the receiving member are engaged together to fix the retainer and the housing.

Abstract: A modular electrical connector includes a base and at least one adaptor. The base is provided with at least one first assembling port and an insertion port. An insertion slot is provided between the first assembling port and the insertion port. The insertion slot has a plurality of insertion holes. Each of the plurality of insertion holes is provided with an electrical-conductive pin extending into the insertion port. The adaptor has a rear end with an insertion pin and a front end with a connecting port. The connecting port has a tongue therein. The tongue is provided with a plurality of electrical-conductive terminals. One end of each of the electrical-conductive terminals is electrically connected with the insertion pin. The adaptor is assembled in the first assembling port. The insertion pin is inserted into and electrically connected to the insertion slot.

Abstract: A cartridge, including a cartridge frame, formations on the cartridge frame for mounting the cartridge frame in a fixed position to an apparatus frame, a contactor support structure, a contactor interface on the contactor support structure, a plurality of terminals, held by the contactor support structure, for contacting contacts on a device, and a plurality of conductors, held by the contactor support structure, connecting the interface to the terminals.

Abstract: A connector includes a housing, a flexible circuit board, a terminal and a pressing element. The flexible circuit board, two sides of which are formed respectively with a latching part, is electrically connected with the connector. The terminal includes a movable arm and a fixed arm which are extended toward a same direction and parallel provided. An end of the movable arm is a pushing part, and the other end is a pushed part. The fixed arm is fixed by using the housing and includes a snap part close to the pushing part. The pressing element has an abutting part to push the pushed part. Accordingly, when the pressing element is acted upon by a displacement operation to displace toward a pre-determined direction, the snap part of the fixed arm is engaged into the latching part of the flexible circuit board which is therefore effectively fixed at the connector.

Abstract: According to one embodiment, an electronic device includes a connector, and a flexible printed wiring board having a board main body provided with a first surface with a conductor provided thereon, a second surface opposite to the first surface, and a front end contacting the connector, and a reinforcing plate contacting the second surface at the front end to reinforce the board main body. A projection is provided on the connector in contact with the flexible wiring board. The reinforcing plate includes a recess portion in which the projection is fitted. The recess portion has a space increased in size toward and opening to an end face of the reinforcing plate corresponding to the front end, and an opening provided in the end face and communicating with the space.