JP2008243575A - Attaching structure of electric component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attaching structure of an electric component capable of simply attaching the electric component to a panel and capable of simply detaching the electric component from the panel. <P>SOLUTION: The attaching structure of the electric component having a cylindrical case 10 is provided with a locking portion 40 which is supported capable of appearing and receding to and from the outer circumference 11 of the case 10 and is energized to the outside in radial direction of the axle of the case 10 and an overhang portion 50 jutted to the outer circumference 11 of the case 10. The locking portion 40 has a crest shape outer circumference projected to the outside in radial direction of the axle of the case 10 and has a part of screw thread 80 of coil shape with the axle of the case 10 as nearly the center at the face 72 which does not face the overhang portion 50 out of the outer circumference of the locking portion 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electric component mounting structure, and more particularly to an electric component mounting structure for a vehicle.

Conventionally, a spring arm that has one end joined to the side of the casing of the electrical component and the other end released and opened in the shape of an inverted octagon is provided. The spring arm opens in the shape of an inverted octagon on the back side of the panel, and the electrical component is fixed to the panel by sandwiching the panel by the overhanging part protruding from the side surface of the casing of the electrical product and the locking part of the spring arm An electric component mounting structure is known (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 52-40975

  However, in the conventional configuration, in order to remove the electrical component from the panel, a protrusion protruding from the tip of the wire bent into a substantially U shape is engaged with the locking hole of the spring arm, and a pair of released spring arms. Must be pressed inward. Therefore, in the case of a spring arm having a high elastic force, it is difficult to press the spring arm inward, and thus it is difficult to remove the electrical component from the panel. In particular, in the case of a metal panel, the mounting hole of the panel does not expand due to elastic deformation as compared with the case of a resin panel, so that it is difficult to remove the electrical component from the panel.

  The present invention has been made in view of the above, and an object of the present invention is to provide an electrical component mounting structure that allows an electrical component to be easily attached to a panel and allows the electrical component to be easily detached from the panel. .

In order to achieve the above object, the first invention provides an electrical component mounting structure having a cylindrical housing.
A locking portion supported so as to be able to appear and retract with respect to the outer peripheral surface of the housing, and biased outward in the radial direction of the shaft of the housing;
A projecting portion projecting from the outer peripheral surface of the housing;
The locking portion has a mountain-shaped outer peripheral surface protruding outward in the radial direction of the shaft of the housing, and the housing is disposed on a surface of the outer peripheral surface of the locking portion that does not face the protruding portion. A part of a coil-like thread having a substantially centered axis is provided.

According to a second aspect of the present invention, in the electric component mounting structure according to the first aspect, the overhanging portion presses the edge of the mounting hole to which the electric component is to be attached and the edge of the mounting hole to the edge. It is supported so as to be slidable in the axial direction of the housing between the second position for releasing the press,
An urging means for urging the projecting portion in the axial direction of the housing toward the second position;
An engagement means for engaging the overhanging portion at the first position and the second position is provided.

  3rd invention is the reverse light switch for vehicles which has the attachment structure of the electrical component which concerns on 1st or 2nd invention.

  According to the first invention, when the electrical component is attached to the panel, the electrical product is pushed into the mounting hole, and when the electrical component attached to the panel is removed, the electrical product is rotated and pulled toward the hand. Easy installation and removal of electrical components.

  According to the second invention, the overhanging portion can be pressed against the edge of the mounting hole, and the airtightness between the electrical component and the panel can be ensured.

  According to the third aspect, similarly to the first aspect, the vehicle reverse light switch can be easily attached and detached. Further, as in the second aspect of the invention, it is possible to ensure airtightness between the vehicle reverse light switch and the transmission case. Also, since the vehicle reverse light switch can be attached to the transmission case with a one-touch type, compared with the conventional screw-in type vehicle reverse light switch attached to the transmission case, the vehicle reverse light switch connector Can be installed in any direction. Therefore, there are no restrictions on the design of the electric wire extending from the power source to the connector and the electric wire extending from the backward light to the connector.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic diagram showing the configuration of an embodiment of a vehicular reverse light switch mounting structure according to the present invention. FIG. 1A is a top view, FIG. 1B is a front view, and FIG. 1C is a side view. The reverse lamp switch for a vehicle according to the present embodiment includes a housing 10, an operating rod 20, and a connector 30. The housing 10 has a cylindrical shape, and is fitted with an operating rod 20 and includes a connector 30 on the upper surface (the side opposite to the operating rod 20). Further, the casing 10 has a cylindrical protruding portion 50 fitted therein, and the fixed lever 60 pivotally supported by the casing 10 is operated, whereby the protruding portion 50 is connected to the casing 10. It can slide in the axial direction. A pair of openings 12 are provided on the outer peripheral surface 11 of the housing 10, and the locking portions 40 are installed so as to be able to appear and retract from the respective openings 12. The locking portion 40 protrudes from the housing 10 before the vehicle reverse light switch is attached to the transmission case (not shown), and is configured to be immersed in the housing 10 when pressed. ing. Hereinafter, each configuration will be described in detail. The axial direction means the axial direction of the housing 10, the upper means the connector side in the axial direction, and the lower means the operating rod side in the axial direction.

  The rod-shaped actuating rod 20 is externally fitted to the housing 10 and extends and retracts in a telescoping manner with respect to the housing 10. When a user who drives the vehicle operates an operation lever (not shown) of the transmission, an operation link (not shown) connected to the operation lever presses one end of the operating rod 20 or releases the pressure. When the operating rod 20 expands and contracts with respect to the housing 10, a movable contact (not shown) provided at the other end of the operating rod 20 is a pair of fixed contacts (not shown) provided inside the housing 10. Connect or disconnect. When the driver operates the transmission control lever to move the vehicle backward, the movable contact connects a pair of fixed contacts and energizes a power source (not shown) and a backward light (not shown). The light comes on.

  The connector 30 is installed on the upper surface of the housing 10. The connector 30 connects an electric wire extending from the power source and an electric wire extending from the vehicle backward light to the vehicle backward light switch.

  The locking portion 40 is configured to be able to protrude and retract from the opening 12 of the outer peripheral surface 11 of the housing 10, and is biased to the outside in the radial direction of the shaft of the housing 10. For example, a coil spring (not shown) can be used as a means for urging the locking portion 40 outward in the radial direction of the shaft of the housing 10. One end of the coil spring is coupled to the housing 10, the other end of the coil spring supports the locking portion 40, and the locking portion 40 is biased outward in the radial direction of the shaft of the housing 10 by the elastic force of the coil spring. Alternatively, a spring arm (not shown) can be used as means for urging the locking portion 40 outward in the radial direction of the shaft of the housing 10. One end of the spring arm is coupled to the housing 10, the other end of the spring arm supports the locking portion 40, and the locking portion 40 is attached to the outer side in the radial direction of the shaft of the housing 10 by the bending restoring force of the spring arm. To force. The locking portion 40 immerses inside the housing 10 when pressed, and protrudes outside the housing 10 when the pressing is released. The locking portion 40 is fixed in the axial direction with respect to the housing 10, and when the housing 10 is slid in the axial direction, the locking portion 40 is also slid in the axial direction. Further, the locking portion 40 is fixed in the rotation direction about the axis of the housing 10 with respect to the housing 10, and when the housing 10 is rotated around the axis of the housing 10, the locking portion 40 40 is also rotated about the axis of the housing 10.

  The locking portion 40 is a mountain-shaped plate protruding outward in the radial direction of the shaft of the housing 10, and includes a surface 71 that faces the protruding portion 50 and a surface 72 that is bent from the outer peripheral end 73 of the surface 71. An outer peripheral surface is provided. The surface 71 is formed at a slightly acute angle from the right angle with respect to the axial direction of the housing 10, and the surface 72 is a surface that rises obliquely toward the outer peripheral end of the surface 71. Since the surface 71 is formed at an acute angle slightly perpendicular to the axial direction of the housing 10, when the locking portion 40 is strongly pressed from above in the axial direction, the locking portion 40 is immersed inside the housing 10. To go.

  Moreover, the latching | locking part 40 of a present Example equips the surface 72 with a part of coiled screw thread 80 centering on the axis | shaft of the housing | casing 10 as the characteristic structure. Since the pair of locking portions 40 includes a part of the coiled thread 80 centered on the axis of the housing 10 on the surface 72, the housing 10 is a screw having a shape in which the shape of the thread 80 is substantially reversed. It can be screwed into a mounting hole having a groove. When the housing 10 is rotated with the fingers placed on the housing 10 in a state in which the housing 10 is screwed into the mounting hole, the locking portion 40 also rotates, so that the mounting hole can be moved without pushing or pulling the housing 10. The housing 10 can be slid in the axial direction.

  FIG. 2 is a cross-sectional view showing the relationship between the locking portion 40 and the mounting hole 90 in a state in which the vehicle reverse light switch shown in FIG. 1 is attached to the case of the transmission. The inner diameter of the mounting hole 90 is larger than the outer diameter of the housing 10 and smaller than the outer diameter of the pair of locking portions 40. The inner wall of the mounting hole 90 has a recess 91 in which a shape that is substantially reversed from the shape of the locking portion 40 is extended in the circumferential direction. The inner peripheral surface of the recess 91 includes a screw groove 81 having a shape that is substantially the reverse of the shape of the thread 80 of the locking portion 40.

  When the vehicle reverse light switch of this embodiment is attached to the transmission case, when the housing 10 is inserted into the attachment hole 90 from the operating rod side 20, the thread 80 on the surface 72 of the locking portion 40 is attached to the attachment hole 90. Abutting against the edge 92. Since the surface of the screw thread 80 that contacts the edge 92 of the mounting hole 90 is a surface that rises obliquely toward the apex of the screw thread 80, when the screw thread 80 is pressed from below in the axial direction, the locking portion 40 is Immerse inside the body 10. Therefore, when the housing 10 is inserted into the mounting hole 90 with the thread 80 of the surface 72 hooked on the edge 92 of the mounting hole 90, the locking portion 40 is discontinuously immersed inside the housing 10. However, the vehicle reverse light switch passes through the mounting hole 90. While the apex of the uppermost thread 80 passes through the mounting hole 90, the locking portion 40 is most immersed in the housing 10. When the locking portion 40 finishes passing through the edge 93 of the mounting hole 90, the pressing against the locking portion 40 is lost, and the locking portion 40 protrudes from the housing 10 again.

  When the locking portion 40 protrudes again from the housing 10, the screw thread 80 of the locking portion 40 comes into contact with the screw groove 81 of the recess 91, and when the housing 10 is further rotated, the screw thread 80 of the locking portion 40 is recessed. 91 is threaded into the thread groove 81. Further, when the locking portion 40 protrudes again from the housing 10, the locking portion 40 and the overhanging portion 50 sandwich the edges 92 and 93 of the mounting hole 90, so that the vehicle reverse light switch is attached to the case of the transmission. Fixed. In order to stabilize the posture of the housing 10 with respect to the mounting hole 90, it is preferable that a plurality of the locking portions 40 are arranged on the outer periphery of the housing 10 at substantially equal intervals. With the mounting structure of this embodiment, the vehicle reverse light switch can be attached to the transmission case with a one-touch type, so compared with the conventional screw-in type vehicle reverse light switch attached to the transmission case. Thus, the orientation of the connector 30 can be arbitrarily set. Therefore, there is no restriction on the design of the electric wire extending from the power source to the connector 30 and the electric wire extending from the backward light to the connector 30.

  Moreover, the overhang | projection part 50 of a present Example is the 1st position which presses the edge of the attachment hole 90 which attaches an electrical component, and the latching part 40 on the opposite side with respect to a 1st position as the characteristic structure. Thus, it is supported so as to be slidable in the axial direction of the housing 10 between the second position where the pressing to the edge of the mounting hole 90 is released. The overhang portion 50 has a cylindrical shape, and can slide in the axial direction of the casing 10 with respect to the casing 10 by fitting the cylindrical casing 10 therein.

  Further, the mounting structure of the present embodiment includes a biasing unit that biases the overhang portion 50 in the axial direction of the housing 10 toward the second position. For example, a coil spring (not shown) can be used as the biasing means that biases the overhanging portion 50. One end of the coil spring is coupled to the overhang 50, and the other end of the coil spring is coupled to the housing 10, and the overhang 50 is attached in the axial direction of the housing 10 toward the second position by the elastic force of the coil spring. To force.

  Further, the mounting structure of the present embodiment includes engagement means for engaging the overhanging portion 50 at the first position and the second position. As the engaging means, as shown in FIG. 1, a fixing lever 60 that comes into contact with the upper surface of the protruding portion 50 can be used. The end 61 of the fixed lever 60 is pivotally supported by a rotation shaft 62 fixed to the housing 10 so as to be rotatable around an axis perpendicular to the axis of the housing 10, and the distance from the rotation shaft 62 is compared. A short surface 63, a surface 64 having a relatively long distance from the rotation shaft 62, and a curved bent portion 65 between the surface 63 and the surface 64. With the overhanging portion 50 in the second position, the upper surface of the overhanging portion 50 abuts the surface 63 of the end 61 of the fixing lever 60 and with the overhanging portion 50 in the first position. The upper surface of the protruding portion 50 abuts on the surface 64 of the end portion 61 of the fixing lever 60. When the fixing lever 60 is rotated, the distance from the rotation shaft 62 to the end portion 61 is not constant, so that the overhang portion 50 can be slid in the axial direction with respect to the housing 10.

  When the projecting portion 50 is slid from the second position to the first position, the fixing lever 60 is rotated downward. When the fixed lever 60 is rotated against the elastic force of the coil spring in a state where the overhang portion 50 is in the second position, the distance from the contact point between the upper surface of the overhang portion 50 and the end portion 61 to the rotation shaft 62. Is gradually increased, the overhanging portion 50 is slid axially downward with respect to the housing 10. While the bent portion 65 is in contact with the upper surface of the overhang portion 50, the overhang portion 50 is at the lowest position in the axial direction, and the repulsive force of the coil spring is strongest. When the bent portion 65 exceeds the upper surface of the overhanging portion 50, the overhanging portion 50 slides to the first position without rotating the fixing lever 60, and the overhanging portion 50 is stabilized at the first position. Engaged.

  Further, when the overhanging portion 50 is slid from the first position to the second position, the fixing lever 60 is rotated upward. When the fixed lever 60 is rotated against the elastic force of the coil spring while the overhanging portion 50 is in the first position, the distance from the contact point between the upper surface of the overhanging portion 50 and the end portion 61 to the rotating shaft 62. Is gradually increased, the overhanging portion 50 is slid axially downward with respect to the housing 10. While the bent portion 65 is in contact with the upper surface of the overhang portion 50, the overhang portion 50 is at the lowest position in the axial direction, and the repulsive force of the coil spring is strongest. When the bent portion 65 exceeds the upper surface of the overhang portion 50, the overhang portion 50 slides to the second position even if the fixing lever 60 is not rotated, and the overhang portion 50 is stabilized at the second position. Engaged.

  As described above, when the vehicle reverse light switch of the present embodiment is attached to the transmission case and the overhanging portion 50 is in the second position, the fixing lever 60 is rotated downward, The overhang 50 slides downward in the axial direction with respect to the housing 10, and the overhang 50 is installed between the lower surface of the overhang 50 and the edge 92 of the mounting hole 90. Press (not shown). When the washer is pressed, the washer is elastically compressed. While the bent portion 65 is in contact with the upper surface of the overhang portion 50, the overhang portion 50 is at the lowest position in the axial direction with respect to the housing 10, and the washer is compressed most. When the bent portion 65 exceeds the upper surface of the overhanging portion 50, the overhanging portion 50 slides to the first position without rotating the fixing lever 60, and the overhanging portion 50 is stabilized at the first position. Engaged. Since the washer is elastically compressed into a shape that follows the unevenness of the lower surface of the overhang 50 and the edge 92 of the attachment hole 90 in a state where the overhang 50 is in the first position, the overhang 50 and the attachment hole 90 The vehicle rearward light switch can be stably fixed to the case of the transmission. When the vehicle driver starts the engine with the vehicle reverse light switch attached to the transmission case, the inside of the transmission case connected to the engine room becomes negative pressure. When the pressure inside the case of the transmission becomes negative pressure, the washer is further elastically deformed by the force in the direction of pulling the overhang 50 into the case, so that the negative pressure in the engine room can be maintained.

  When removing the vehicle reverse light switch of the present embodiment from the case of the transmission, first, the fixing lever 60 is rotated upward, and the overhanging portion 50 is moved from the first position to the second position with respect to the housing 10. Slide. In the state where the overhang portion 50 is in the second position, the pressure acting on the washer is released, so the washer is elastically deformed and returns to its original thickness. Next, in order to slide the housing 10 in the axial direction with respect to the mounting hole 90, the housing 10 is rotated by placing fingers on the housing 10 in a state where the locking portion 40 is screwed into the mounting hole 90. When the housing 10 is slid upward in the axial direction with respect to the mounting hole 90, the surface 71 of the locking portion 40 comes into contact with the edge 93 of the mounting hole 90. Since the surface 71 of the locking portion 40 is formed at an acute angle with respect to the axial direction of the housing 10, when the housing 10 is slid upward in the axial direction, the locking portion 40 is pressed to the inside of the housing 10. . Further, when the casing 10 is slid upward in the axial direction, the vehicle backward light switch starts to pass through the mounting hole 90 while the locking portion 40 is immersed inside the casing 10. After the locking portion 40 is immersed inside the housing 10 and the screwing between the surface 72 of the locking portion 40 and the mounting hole 90 is released, the outer side of the transmission case is pulled by the force pulled in the hand direction. The vehicle rearward light switch can be removed from the case of the transmission while sliding the housing 10 in the direction of, and immersing the locking portion 40 inside the housing 10.

  As described above, in the vehicle reverse light switch mounting structure according to the present invention, when the vehicle reverse light switch is mounted on the transmission case, the housing 10 is pushed into the mounting hole 90, whereby the transmission case is mounted. When the vehicle backward light switch attached to the vehicle is removed, the vehicle backward light switch can be easily attached and detached by pulling it toward the hand while rotating the housing 10. Compared to the conventional case, instead of inserting the tip of a U-shaped wire into the spring arm's locking hole and pressing the wire with your fingers to press the spring arm inward, put your fingers on the housing 10 By rotating the body 10, the vehicle backward light switch can be easily removed. Further, by pressing the overhanging portion 50 against the edge 92 of the mounting hole 90, airtightness between the vehicle reverse light switch and the transmission case can be secured. In addition, since the vehicle reverse light switch can be attached to the transmission case with a one-touch type, the direction of the connector 30 is oriented as compared with the conventional screw-in type vehicle reverse light switch attached to the transmission case. Can be installed arbitrarily. Therefore, there is no restriction on the design of the electric wire extending from the power source to the connector 30 and the electric wire extending from the backward light to the connector 30.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. Can be added.

  For example, the surface 71 of the locking portion 40 according to the present embodiment is formed to be slightly acute with respect to the axial direction of the housing 10, but has a two-step inclination, and is inclined downward toward the outer side in the radial direction. Can be formed. When the electrical product is mounted on the panel, the electrical product can be stably fixed to the panel without immersing the housing 10 in a state where the electrical product is attached to the panel, and the electrical product is removed from the panel. After the screwing between the locking portion 40 and the mounting hole 90 is released, the electric product can be easily removed by hand force.

It is the schematic which showed the structure of one Example of the attachment structure of the reverse light switch for vehicles by this invention. FIG. 2 is a cross-sectional view showing a relationship between a locking portion 40 and an attachment hole 90 in a state in which the vehicle reverse light switch shown in FIG. 1 is attached to a transmission case.

Explanation of symbols

10 Housing 40 Locking portion 50 Overhanging portion 80 Thread

Claims (3)

In the mounting structure of an electrical component having a cylindrical housing,
A locking portion supported so as to be able to appear and retract with respect to the outer peripheral surface of the housing, and biased outward in the radial direction of the shaft of the housing;
A projecting portion projecting from the outer peripheral surface of the housing;
The locking portion has a mountain-shaped outer peripheral surface protruding outward in the radial direction of the shaft of the housing, and the housing is disposed on a surface of the outer peripheral surface of the locking portion that does not face the protruding portion. An electrical component mounting structure comprising a part of a coiled screw thread having a substantially centered axis. The overhanging portion is between the first position for pressing the edge of the mounting hole for mounting the electrical component and the second position for releasing the pressing of the mounting hole to the edge in the axial direction of the housing. Slidably supported,
An urging means for urging the projecting portion in the axial direction of the housing toward the second position;
The electrical component mounting structure according to claim 1, further comprising engagement means for engaging the overhanging portion at the first position and the second position.   A reverse lamp switch for a vehicle having the electric component mounting structure according to claim 1.

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