Abstract: An optical axis regulating device of a lighting device for a vehicle, which serves to vertically and transversely tilt a lamp unit supported on one fulcrum in a lamp housing formed by a lamp body having a concave portion and a transparent cover for covering an opening portion of the lamp body, includes a case, a slider movable in a longitudinal direction with respect to the case, an output portion rotatably supported on the slider and coupled to the lamp unit, a vertical regulating device for moving the slider in a longitudinal direction, and a transverse regulating device for rotating the output portion.

Abstract: A stamped ball socket for attaching a headlamp pod to a mounting bracket comprising a base having an opening which is adapted to accept a fastener. The ball socket further comprising at least two walls extending from the base and at least two lock-in fingers protruding at an angle from the walls. The lock-in fingers and the walls of the ball socket flex to allow a pivot ball to be inserted between the lock-in fingers such that when the pivot ball is fully inserted it is adjustably retained in the ball socket by the lock-in fingers. Additionally, the base, walls, and lock-in fingers of the present invention are integrally formed by stamping a single piece of metal.

Abstract: A lightweight and compact headlamp adjuster is constructed primarily from plastic materials. The adjuster may include a VHAD that is non-recalibratable after the headlamp aim is factory set. The adjuster includes an input shaft that engages a gear located within a housing. When the input shaft is rotated, a ball stud moves linearly to adjust the headlamp to which it is connected. The adjuster is not subject to over-adjustment when it includes a clutching mechanism provided by the interaction of the ball stud with the gear.

Abstract: A vehicular headlamp including a light amount control device that controls the amount of light from at least two of a plurality of light source units each having a light-emitting element as the light source. The light amount control device performs a contrasting control of the lamp to increase the amount of light from at least one of the light source units and decrease the amount of light from the other light source unit, thus enhancing the visibility by increasing the amount of light from one light source unit and enhancing the brightness in an area that the unit illuminates, and decreasing the amount of light from the other light source unit that illuminates an area where visibility is required less, lowering the power consumption.

Abstract: An adjusting device for automobile headlamp projection angle comprises a case, a bearing ring, a connection beam, a magnet, a main axle, a pair of forward-wound coil and backward-wound coil, a pair of active transmission gear wheel and passive transmission gear wheel, and a circuit board. The circuit board controls the charging of the coils, determining the poiarity of the magnet, whereby the transmission gear wheels will move and drive an up or down shift of the main axle. A stopping piece mounted on the passive transmission gear wheel will move and confine the movement of the main axle between an upper and a lower limits, which limits are controlled by a handle on the circuit board. Therefore, over-extension and over-contraction of the main axle can be prevented. Further, the transmission will be more sensitive, and the total volume of the device will be small.

Abstract: A lamp adjuster for adjusting the aim of a headlamp is disclosed. The lamp adjuster includes an input shaft, a ball stud bracket in threaded engagement with the input shaft and an o-ring mounted on the ball stud bracket. Rotation of the input shaft causes linear translation of the ball stud bracket, thereby adjusting the aim of the lamp.

Abstract: An adjustable motorcycle headlight with multiple degrees of freedom enables the rider to aim the light where it is needed, as well as facilitating the factory assembly process by enabling fine adjustment after the headlight is mounted. The motorcycle headlight is attached to the frame via a ball and socket structure cooperatively coupled to at least one positioning arm provided in tandem with the ball and socket structure for accommodating and stabilizing the movement of the ball and socket joint and locking same in position. The positioning arm includes a series of straight segments rotatably attached to one another via adjusters which can be loosened to enable adjustment, and tightened to affix the positioning arm into place. The combination of the ball and socket joint with a pair of positioning arms also provides a stable, robust three-point attachment mount for the headlight.

Abstract: A lamp mounting apparatus engages a temporal fastening pin with a temporal fastening clip to prevent a positioning surface of a lamp unit from moving in such a direction as to depart from a flange, so that the lamp unit can be kept positioned.

Abstract: An adjuster to be used with numerous applications including the adjusting of a headlamp reflector of a headlamp assembly includes a clutch mechanism that prevents over-driving and over-traveling of the adjuster output shaft during an overload condition. The adjuster includes generally an output shaft, drive gear, spring, and a driven gear that allow the headlamp adjuster to clutch. The driven gear is held in an engaged position with the drive gear by the spring force of the spring. In a high torque condition, such as when the output shaft encounters a high load, the driven gear will disengage from the drive gear overcoming the spring force of the spring. In this position, the headlamp adjuster will clutch, thereby preventing the over-driving and over-traveling of the output shaft.

Abstract: An adjusting device for head light assembly includes a motor fixed to a frame and the output shaft of the motor extends through a guiding passage in the frame and connected to a driving rod which includes outer threaded periphery. An activation rod has a spherical head at a first end thereof so as to be connected to an adjusting member of the light bulb and a hole with an inner threaded periphery is defined axially in a second end of the activation rod. The outer threaded periphery of the driving rod is rotatably engaged with the inner threaded periphery of the activation rod so that when the output shaft rotates, the driving rod is co-rotated so as to move the activation rod away from or close to the frame.

Abstract: An adjuster having a housing or lamp housing with an adjuster portion, a gear positioned inside the housing or adjuster portion, a control rod engaged to the gear and extending from the housing or adjuster portion, and at least one tang outside the housing or adjuster portion such that the tang engages the control rod and prevents rotation thereof. As such, rotation of the gear results in linear movement of the control rod. The adjuster may be positioned on a lamp housing, or other structure.

Abstract: A headlamp adjuster which includes a housing, an expandable member on the housing, and an adjuster member which is extendable and retractable relative to the housing. One end of the adjuster member is engageable with a reflector of a headlamp assembly, and the other end of the adjuster member is receivable in the expandable member. The expandable member is configured to expand to accommodate retraction of the adjuster member. The expandable member may be a bellows which is, for example, molded to the housing. The housing may be molded over the bellows, or vice versa. Alternatively, the bellows may be attached to the housing using, for example, a snap ring, adhesive or some other suitable means.

Abstract: An aimable lamp assembly is provided having a bezel, with an opening, in which the bezel is secured to a backplate. A housing assembly having a front housing and a back housing is disposed between the backplate and the bezel. A light source is disposed within the housing assembly. The back housing is connected to the backplate through a ball and a socket joint and the front housing partially protrudes through the opening in the bezel.

Abstract: A stamped ball socket for attaching a headlamp pod to a mounting bracket comprising a base having an opening which is adapted to accept a fastener. The ball socket further comprising at least two walls extending from the base and at least two lock-in fingers protruding at an angle from the walls. The lock-in fingers and the walls of the ball socket flex to allow a pivot ball to be inserted between the lock-in fingers such that when the pivot ball is fully inserted it is adjustably retained in the ball socket by the lock-in fingers. Additionally, the base, walls, and lock-in fingers of the present invention are integrally formed by stamping a single piece of metal.

Abstract: A motorized adjuster for adjusting the aim of a lamp having a housing, motor, and control rod. The control rod passes through the motor. An anti-rotation gear is positioned inside the housing. The control rod passes through the gear. A flex point is positioned inside the housing to functionally engage the gear. The adjuster may be operated manually or electrically. Manual operation is accomplished by actuating a driver inserted into the housing. Electrical operation is accomplished by actuating the motor. Actuating the driver or the motor causes the control rod to move along its axis.

Abstract: A sliding adjuster includes a base housing with a slide positioned at least partially therein. The base housing includes mounting tabs so that the adjuster can be secured to the back of a headlamp assembly support frame. The base housing includes channels along its sides in which rails extending from the slide are disposed. A ball stud extends from the slide, the ball of which is engaged in a reflector within the headlamp assembly such that axial movement of the ball stud causes movement of the reflector. Movement of the slide is caused by rotation of an adjustment screw that is threaded into the slide but held in axial position with respect to the base housing. The adjuster may include a vehicle headlamp aiming device (“VHAD”) if required for the particular application.

Abstract: A pivot capsule for a motor vehicle headlamp has a seating receiving a substantially spherical head of a fixing rod of substantially axial orientation extending from a housing of the headlamp to allow the lighting module to pivot. The seating is open at its two transverse ends. The seating has a channel which receives the head, and at least two lugs extending with play on both sides of the channel and the head. The recurved arms incorporate ends bearing on the head substantially at its junction with the rod to hold it securely in the channel. An additional retaining element of the pivot capsule is intended to be inserted via an open end of the seating and which includes at least one retaining surface.

Abstract: Lamp unit for a motor vehicle of the type including at least one housing into which is inserted a lighting module which is fixed in the housing by means of at least one pivot element incorporating a rod of substantially horizontal axial orientation, carried by the housing, of which a spherical head is housed in a capsule integral with the lighting module, wherein it includes at least one retaining enclosure which is traversed by at least part of the rod, which is carried by a wall of the housing, and in which a seating receives the capsule supported vertically substantially aligned with the spherical head, so that the weight of the lighting module bears on the housing, and in that a sidewall of the enclosure has two flanges which are received in a slideway carried by the associated wall of the housing.

Abstract: A vehicle lamp includes a reflector tiltably supported by an aiming mechanism intervening between the reflector and a lamp body. An aiming fulcrum forming the aiming mechanism is formed with a ball joint including a pivot on the reflector side and a bearing on the lamp body side. The pivot is formed with a shaft portion on the base end side and a ball portion on the front end side. The bearing is formed with a cylindrical ball bearing portion formed on the inner periphery where a ball supporting surface in press-contact with the ball portion opening forward via a ring-like diameter reducing portion. Vertical slits are provided in the open peripheral edge portion of the ball bearing portion. The ball portion is formed into a substantially hemispheric ball portion such that its front side press-fitted into the ball bearing portion has a spherical surface.

Abstract: The present invention comprises a pivot stud with an axis of rotation in the horizontal plane for use within a visual optical aim light assembly. The axis of rotation of the pivot stud defines an axis of rotation about which the light assembly may be rotated so as to properly aim the visual optical aim light assembly. The pivot stub does not allow rotation about planes other than the horizontal plane. According to one embodiment, the pivot stud comprises a ball and socket of a generally ellipsoid shape.

Abstract: A headlight for motor vehicles is provided that includes an optical element, which is connected to a support element by at least one ball-and-socket joint. The ball-and-socket joint has a spherical ball and a spherical socket. The socket encloses the ball with socket segments and is inserted together with the ball into a receptacle, and contacts, via its socket segments, the inside of the receptacle. The socket contacts the bottom of the receptacle with a base, and has on the other side freestanding elastic socket segments that enclose the ball. Elastic detent elements of the receptacle engage behind the base of the socket and retain the socket axially in the receptacle.

Abstract: A vertically adjustable headlight assembly having a headlight housing, a reflector positioned within the housing and an adjuster mechanism including a channel and an adjustment member. An end of the adjustment member is accessible outside of the housing and the other end is received in the channel. When advanced or retracted, the end of the adjustment member travels within the channel causing the reflector to pivot within the housing and vertically adjust.

Abstract: A headlamp adjuster for adjusting the position of a reflector includes a base housing with a slide positioned at least partially therein. The base housing has mounting tabs so that the adjuster can be secured to the back of a headlamp assembly support frame. The base housing also has channels along its sides in which rails extending from the slide are disposed. A ball stud extends from the slide, the ball of which engages the reflector within the headlamp assembly such that axial movement of the ball stud causes movement of the reflector. Movement of the slide is caused by rotation of an adjustment screw that is threaded into the slide but held in axial position with respect to the base housing. The adjuster may include a vehicle headlamp aiming device (“VHAD”) if required for the particular application.” A marked-up version showing the changes is enclosed herewith in accordance with 37 CFR §1.121 (b)(iii).

Abstract: A headlamp includes a lamp housing defining a lamp body and a front lens. A reflector is accommodated in the lamp housing and a light source is attached thereto. An aiming mechanism tiltably supports the reflector relative to the lamp body, and includes an aiming fulcrum, aiming screws, and nut members attached to the reflector. The nut members are guided by sliding guides in the lamp body, and stress releasing devices having a ball-and-socket joint structure are provided in an attachment portion of the nut members and brackets. A ball portion of a ball-and-socket joint is formed in a nut member body itself provided with a female screw portion, a slider supported by the sliding guides is formed integrally with a side of the ball portion, and the ball portion is supported on a ball receiving portion of bearings attached to the brackets.

Abstract: A mounting plug for pivotably connecting a first component to a second component. The mounting plug comprises a ball stud portion comprising a ball and a post. The post comprises means for attaching the ball stud portion to the first component. The mounting plug further comprises a base and a socket chamber integrally molded on top of the base. The socket chamber is adapted to removably and pivotably retain the ball stud portion. The mounting plug further comprises a channel integrally molded to the base adjacent to the socket chamber, with the channel adapted to allow the ball to be inserted there through and into the socket chamber. The mounting plug further comprises a retainer portion integrally molded below the base. The retainer portion comprises at least one tab integrally molded to the retainer portion and adapted to removably secure the socket portion to the second component.

Abstract: A transmission member is swingably connected respectively to a reflector and a nut member, about an axis substantially orthogonal to a tilting direction of the reflector and to an advancing and backward direction of the nut member. As a result, the transmission member, which forms a link of a link mechanism, converts the linear motion of the nut member into rotation motion and transmits the rotation motion to the reflector, and also adjusts a misalignment between the linear motion of the nut member and the rotation motion of the reflector. Accordingly, optical axis adjustment is carried out smoothly.

Abstract: A Surface-Mounted, Billet-Formed Ball-Type Headlight Mount is disclosed. Also disclosed is a headlight mount that includes a ball dome member that attaches to the outside surface of the headlight housing. The mount further includes a plurality of attaching bolts extending outward from the inside of the housing to engage threaded apertures formed in an annular face. Furthermore, the mount assembly includes a carriage bolt having a flat-sided head.

Abstract: A lightweight and compact headlamp adjuster is constructed primarily from plastic materials. The adjuster may include a VHAD that is non-recalibratable after the headlamp aim is factory set. The adjuster includes an input shaft that engages a gear located within a housing. When the input shaft is rotated, a ball stud moves linearly to adjust the headlamp to which it is connected. The adjuster is not subject to over-adjustment when it includes a clutching mechanism provided by the interaction of the ball stud with the gear.

Abstract: A headlight for motor vehicles is provided that includes an optical element, which is connected to a support element by at least one ball-and-socket joint. The ball-and-socket joint has a spherical ball and a spherical socket. The socket encloses the ball with socket segments and is inserted together with the ball into a receptacle, and contacts, via its socket segments, the inside of the receptacle. The socket contacts the bottom of the receptacle with a base, and has on the other side freestanding elastic socket segments that enclose the ball. Elastic detent elements of the receptacle engage behind the base of the socket and retain the socket axially in the receptacle.

Abstract: A headlamp for an automobile includes a lamp body, a light source, a reflector, and an aiming mechanism. The aiming mechanism includes a screw insertion hole and an aiming screw operable to move the reflector by pivoting the aiming screw. The aiming screw includes a supported portion supported by the screw insertion hole, a male screw portion forward from the supported portion, and a pivotal movement operating force transmitted portion rearward from the supported portion. A front end side of the supported portion includes an elastic locking portion operable to pass through the screw insertion hole by being deformed elastically to an inner side in a radial direction, and a rear end side of the supported portion is integrally formed with an elastic rib brought into press contact with a peripheral edge portion on a rear end side of the screw insertion hole to fixedly position the aiming screw.

Abstract: A rear-view mirror for a vehicle. The rear-view mirror has a mirrow body at which is formed an accommodating member. A lamp house containing a lamp bulb and a secondary battery is accommodated in the accommodating member by holders for holding the lamp house from below. The lamp house is pulled out from the accommodating member to illuminate a desired position.

Abstract: A vehicle lamp. A lamp chamber is partitioned by a lamp body in a vessel-like shape and by a front face lens, a reflector is attachedly inserted with a light source and is contained in the lamp chamber, and an aiming mechanism is interposed between the lamp body and the reflector for supporting the reflector inclinably to the lamp body. The reflector is inclined by rotating an aiming screw supported by a screw inserting hole provided at the lamp body. A rear end portion of the aiming screw projects to the rear side of the lamp body and includes an integrated crown gear made of a metal. A disk face of the gear is provided with a raised wrench engaging portion for engaging with an L-shaped wrench to thereby operate to rotate the aiming screw by using the L-shaped wrench extending from the side of the lamp piece. Aiming screw adjustments can be carried out even when there is no rear space behind the lamp piece. The wrench engaging portion can be formed simply.

Abstract: A vehicular lamp which employs one or more projector lamp units and which is capable of preventing a reflector from being deformed by weight-induced strain while achieving and maintaining required light distribution characteristics. In one embodiment, the vehicular lamp includes first and second lamp units provided with respective reflectors, light sources, and projection lenses, with each lamp unit being tiltably supported on a lamp body via brackets formed separately at least from the reflectors. The brackets are tiltably supported at fulcrums the lamp body. Even in a case where stresses resulting from the weights of the lamp units are applied to bearings to the fulcrums, the stresses can be attenuated or absorbed by the brackets and the reflectors of the lamp units are not strained. Thus, the reflectors are prevented from being deformed, and the lamp units can achieve desired light distribution characteristics.

Abstract: An adjustable fastener assembly for a vehicle includes a retainer for connection to a first vehicle part and a tab portion for connection to a second vehicle part to be received by the retainer. The adjustable fastener assembly also includes an adjustable mechanism between the tab portion and the retainer to act as a temporary holding device to prevent the tab portion from exiting the retainer after a position of the first vehicle part and the second vehicle part are set to a desired location relative to each other.

Abstract: Techniques are provided to decrease load resulting from the bending of a cord when the direction of irradiation of a vehicle headlamp is changed. A vehicle headlamp 100 has a tiltable member for supporting a light source bulb 170 tiltably supported by a lamp body 110. A cord 181 led out from the light source is fixed to cord clamps 181a and 181b in the vicinity of the tiltable fulcrum supporting the tiltable member.

Abstract: A reflector movable type headlamp for an automobile includes a lamp body, a reflector, and an aiming mechanism. The aiming mechanism includes: a screw insertion hole; an aiming fulcrum constituting an inclining fulcrum of the reflector; an aiming screw; a bracket formed at the reflector; a nut member operable to be extracted and retracted in a front and rear direction in cooperation with the pivotal movement of the aiming screw; and a nut sliding guide integrally and extendedly formed with the lamp body. A mounting portion of the nut member and the bracket is provided with stress relieving means. The stress relieving means includes a ball and socket joint structure. The nut sliding guide is provided at a position offset to a side position of a position of arranging the aiming screw on a side opposed to the aiming fulcrum.

Abstract: An adjusting element for fastening a headlight arrangement on a vehicle. The adjusting element has a nut element and a screw element, the screw element being screwed into the nut element. An opening is formed at a vehicle-body-side supporting plate for the nut element. The nut element is formed by an expansion nut which can be inserted into the opening, can be adjusted and has an eccentrically constructed receiving groove, so that, in the insertion direction and transversely thereto, the opening has a larger measurement than the inside diameter of the receiving groove and that, as a result of the screwing of the screw element into the positioned expansion nut, the latter is fixed on the supporting plate.

Abstract: A vehicular lamp which employs one or more projector lamp units and which is capable of preventing a reflector from being deformed by weight-induced strain while achieving and maintaining required light distribution characteristics. In one embodiment, the vehicular lamp includes first and second lamp units provided with respective reflectors, light sources, and projection lenses, with each lamp unit being tiltably supported on a lamp body via brackets formed separately at least from the reflectors. The brackets are tiltably supported at fulcrums the lamp body. Even in a case where stresses resulting from the weights of the lamp units are applied to bearings to the fulcrums, the stresses can be attenuated or absorbed by the brackets and the reflectors of the lamp units are not strained. Thus, the reflectors are prevented from being deformed, and the lamp units can achieve desired light distribution characteristics.

Abstract: A device capable of tilting a reflector installed in a lamp body for adjusting the body's optical axis is provided. Workability of the process for securing the ball bearing to the reflector can be simplified and dislocation of the ball bearing can be prevented.

Abstract: The invention relates to a lighting system for a motor vehicle, said lighting system comprising a frame (20) suitable for supporting at least one lighting lamp (4, 5), a housing containing the frame and its lamp, and a structural piece (3) of the vehicle, which piece is suitable internally for supporting parts of the vehicle, and externally for supporting elements of the bodywork of the vehicle. The housing is an integral part of the structural piece (3), which, for this purpose, is provided with a bowl-shaped recess that can receive the frame and its lamp directly.

Abstract: A lightweight and compact headlamp adjuster is constructed primarily from plastic materials. The adjuster may include a VHAD that is non-recalibratable after the headlamp aim is factory set. The adjuster includes an input shaft that engages a gear located within a housing. When the input shaft is rotated, a ball stud moves linearly to adjust the headlamp to which it is connected. The adjuster is not subject to over-adjustment when it includes a clutching mechanism provided by the interaction of the ball stud with the gear.

Abstract: A vehicular headlamp has a reflector which is supported at not less than three points through respective link members in relation to the lamp body in a tiltable manner. The reflector is molded by molding of a synthetic resin material. At least one of the link members is supported by an attachment piece which is integrally formed with and protrudes outward from a location where the opening periphery of a reflective surface of the reflector as viewed from the blanking direction during molding of the reflector.

Abstract: A headlamp adjuster for adjusting the position of a reflector includes a base housing with a slide positioned at least partially therein. The base housing has mounting tabs so that the adjuster can be secured to the back of a headlamp assembly support frame. The base housing has channels along its sides in which rails extending from the slide are disposed. A ball stud extends from the slide, the ball of which engages the reflector within the headlamp assembly such that axial movement of the ball stud causes movement of the reflector. Movement of the slide is caused by rotation of an adjustment screw that is threaded into the slide but held in axial position with respect to the base housing. The adjuster may include a vehicle headlamp aiming device (“VHAD”) if required for the particular application.

Abstract: A headlamp adjuster which includes an adjuster output shaft which is engageable with a reflector of a headlamp assembly. The adjuster output shaft extends from a housing, and the headlamp adjuster is configured such that in an overload condition, the adjuster output shaft is prevented from translating substantially axially, thereby reducing the risk of damage resulting from over-travel of the adjustor output shaft.

Abstract: A headlamp adjuster which includes an adjuster output shaft which is engageable with a reflector of a headlamp assembly. The adjuster output shaft extends from a housing, and the headlamp adjuster is configured such that in an overload condition, the adjuster output shaft is prevented from translating substantially axially, thereby reducing the risk of damage resulting from over-travel of the adjustor output shaft.

Abstract: The present invention is drawn to a coupling nut for connecting an automotive headlamp adjustment assembly to a tubular protrusion or boss of a headlight reflector forming part of the headlamp assembly wherein the coupling nut has a tubular opening at one end thereof which fits over the tubular protrusion of the headlamp reflector and a cup shaped opening at the opposite end and a circumferential cut out area with a flexible inclined plane therein to allow an easy snap-in of the nut to a pair of protrusions extending from the outside surface of the tubular protrusion.

Abstract: A headlight for a vehicle operating in accordance with a projection principle has a light source, a reflector, a shield arranged in a beam path of a light reflected by the reflector for producing a bright-dark limit of a light bundle exiting the headlight, a lens through which the light passing on the shield passes, a light-permeable cover member arranged after the lens in a light outlet direction, the cover member having a region which deviates the passing light upwardly, and a screening device arranged between the shield and the cover member and formed so that at least a part of the light passing on the screen which would pass through the region of the cover member is screened.

Abstract: A portable light device for vehicles for providing useful and needed light when working with or about a vehicle. The portable light device for vehicles includes includes a magnetic base member; and also includes an elongate contortable member having a first end and a second end with the first end being securely fastened to the magnetic base member; and further includes a support member being securely and pivotally attached to the second end of the elongate contortable member and having a first portion and a second portion which is rotatably mounted upon the first portion with the second portion also including a top wall and a recessed portion in the top wall; and also includes light-emitting assembly.

Abstract: A reflector movable type headlamp for an automobile includes a lamp body, a reflector, and an aiming mechanism. The aiming mechanism includes: a screw insertion hole; an aiming fulcrum constituting an inclining fulcrum of the reflector; an aiming screw; a bracket formed at the reflector; a nut member operable to be extracted and retracted in a front and rear direction in cooperation with the pivotal movement of the aiming screw; and a nut sliding guide integrally and extendedly formed with the lamp body. A mounting portion of the nut member and the bracket is provided with stress relieving means. The stress relieving means includes a ball and socket joint structure. The nut sliding guide is provided at a position offset to a side position of a position of arranging the aiming screw on a side opposed to the aiming fulcrum.

Abstract: An adjusting element is provided for fastening a headlight arrangement on a vehicle. The adjusting element has a nut element and a screw element, the screw element being screwed into the nut element. An opening is formed at a vehicle-body-side supporting plate for the nut element. The nut element is formed by an expansion nut which can be inserted into the opening, can be adjusted and has an eccentrically constructed receiving groove, so that, in the insertion direction and transversely thereto, the opening has a larger measurement than the inside diameter of the receiving groove and that, as a result of the screwing of the screw element into the positioned expansion nut, the latter is fixed on the supporting plate.