JP4618423B2 - Automotive lamp - Google Patents

Description

  The present invention relates to a lamp used for a parking lamp, a small lamp, a tail lamp, a room ball and the like of an automobile using an LED as a light source.

Various lamps for automobiles using LED as a light source cannot support the optical axis of the LED light source with a wide degree of freedom with respect to the electrode portion. There were inherent problems such as inability to secure directions.
Japanese Utility Model Laid-Open No. 6-10053 (Patent Document 1) is a light emitting diode whose light source can be adjusted by turning, and the auxiliary brake lamp disclosed in Patent Document 1 is an example. A light source 3 such as an electrode and an LED is attached to a light source substrate 4, the light source substrate 4 is fitted to a cylindrical substrate holder 5, and the substrate holder 5 is rotatably fitted to a holder receiver 6. Since this rotation does not cause relative movement in the irradiation direction of the electrode and the light source, adjustment is made such that the irradiation direction of the light source is directed to the optimum direction while being connected to the electrode disposed on the automobile side. Is not possible.
Japanese Utility Model Publication No. 6-10053

  The present invention provides an automotive lamp that can be widely used for various types of automobiles by securing the irradiation direction of the LED light source with a wide range of freedom corresponding to the arrangement of various electrodes in various lamps used in automobiles. To do.

According to a first aspect of the present invention, there is provided an automotive lamp in which a socket portion in which a positive electrode and a negative electrode are disposed and a lead wire connected to both electrodes and extending from the socket portion are electrically connected. A lighting unit in which a plurality of LEDs are arranged on the lamp body, and two degrees of freedom in which one end is rotationally joined to the socket part with a required degree of freedom and the other end is rotationally joined to the lamp body with a required degree of freedom. in automotive lamps comprising a arm portion having,
The arm portion projects from a pair of horizontal support pieces, a united cylindrical portion formed by a horizontal semi-cylindrical portion that is integrally suspended from each horizontal support piece in an L shape, and a top surface of each horizontal semi-cylindrical portion. A forked shape consisting of
The united cylindrical part at one end is fitted into the fitting hole opened in the socket part, and the arc groove is concentrically arranged with the axis of the fitting hole in a 90 ° rotation range and is point-symmetrically opposed. By fitting the protrusions so as not to be separated, they are fitted to the socket portion so as to be rotatable within a rotation range of 90 ° , and the pair of horizontal support pieces at the other end are fitted with the fitting holes at the center in the width direction. in each fitting hole opened in the axial center that is perpendicular to the axis as the shaft center, fitted each erected perpendicular to the irradiation optical axis of each of the opposed peripheral surfaces of the lamp body of the illumination unit LED It is fitted to the shaft so as to be rotatable within a required rotation range.
According to a second aspect of the present invention, there is provided the automotive lamp according to the first aspect, wherein the lead wire is provided with a resilient force at one end of the terminal plate of each electrode at the bottom of the contact and the fitting hole . Each ring is connected to each electrode by indirect connection with the biasing part, and each ring connected at the other end is connected to each electric circuit guided from the through hole opened in each fitting shaft of the lamp body of the lighting part. The caps are fitted on the fitting shafts and are indirectly connected to the electric circuit, and are indirectly connected to both ends so as to be freely rotatable.

According to the automotive lamp of the present invention, the lamp body can be rotated to the socket part with a wide degree of freedom via the arm part, so that the LED irradiation direction can be changed while supporting the energization of both electrodes at a specific position. Since it can be ensured appropriately, there is an effect that it can be used with a wide degree of freedom without being limited to the lamp lighting position of the automobile and the vehicle type.

As for the fitting rotation of the united cylindrical part of the arm part in the fitting hole of the socket part, it is rotated with a lead wire from one that turns 90 degrees around the axis of the fitting hole alone. In addition, with respect to the fitting rotation of the fitting shaft and the fitting hole in the horizontal support piece of the lamp body and the arm portion, it is rotated 360 ° from what is turned 180 ° to either one. Even things are listed. Furthermore, the lamp body is selected from a horizontally long rectangular shape to a vertically long rectangular shape or a circular disc body. Therefore, the lead wire connected between each electrode and the lamp body is also selected from those directly connected in consideration of each rotation allowance to those indirectly connected on the rotation surface.

The present invention will be described in more detail with reference to an embodiment. As shown in FIG. 1, a socket portion 4 in which a positive electrode 1 and a negative electrode 2 are disposed in a lateral U shape on a wedge 3 as a socket body, and the socket portion. 6 LEDs 7 are disposed in a rectangular parallelepiped lamp body 6 to which lead wires 5 extending from the electrodes 4 and connected to the electrodes are electrically connected. perpendicular to the irradiation optical axis and the illumination unit 9 formed by erecting fitting shaft 8, open the fitting hole 10 to be fitted to the fitting shaft 8 in the widthwise center of the horizontal support piece 11, the horizontal the members hanging down in an L-shape integrally from the support piece 11, the horizontal semi-cylindrical portion 14 which is fitted to the fitting hole 13 is internally provided in the wedge 3 and the fitting portion 12 of the integral of the socket portion 4 (both horizontal The semi-cylindrical portions 14 and 14 form a combined cylindrical portion), and the top surface of the horizontal semi-cylindrical portion 14 It consists of a united cylindrical part projecting projections 15 having a required width, required thickness, and required height, and an arm part 16 of the horizontal support pieces 11, and the fitting hole 13 of the fitting part 12 and both horizontal parts. As shown in FIG. 2, the relationship with the united cylindrical portion formed by the semi-cylindrical portion 14 is that the arc groove 17 concentrically with the axial center of the fitting hole 13 is point-symmetrically provided within a 90 ° rotation range. The projections 15 of the horizontal semi-cylindrical portion 14 are fitted to each other so that both of them can be rotated by 90 ° in one direction and are not separated from each other.

In this way, in the automotive lamp A that is an assembly of the socket part 4, the arm part 16, and the illumination part 9, the combined cylindrical part of the arm part 16 is around the axis of the fitting hole 13 with respect to the socket part 4. is freely 90 ° rotation in one direction, is freely 180 ° rotation in one direction to the illumination unit 9 around the axis of the fitting hole 10 to a pair of horizontal support pieces 11 and 11 of the arm portion 16 Therefore, the irradiation surface of the illuminating unit 9 can be changed with a wide degree of freedom with respect to the postures of both electrodes.
That is, the state in which the arm lamp 16 is rotated 90 ° rearward with respect to the socket part 4 from the state shown in the partial diagram (a) of FIG. A state in which the illumination unit 9 is rotated 90 ° clockwise with respect to the arm unit 16 from the state of FIG.

  Also, as shown in FIG. 3, the case where the automobile lamp A of the present invention is used as a tail lamp of an automobile will be described. When the LED 7 is lit by the arrangement of both electrodes on the left side, the arrangement of both electrodes on the right side is a dotted line. If the left-hand car lamp A is turned upside down, the right-hand car lamp A matches the arrangement of both electrodes, and its irradiation surface is the same as that on the left side. However, when the arrangement of the two electrodes on the right side is upside down with respect to the arrangement of the two electrodes on the left side, the right lamp A for the automobile is provided with the illuminating section 9 of the left automobile lamp as the arm section 16. On the other hand, those rotated 180 ° clockwise around the axis of the fitting hole 10 are used. Therefore, it is not necessary to manufacture specially for the right side.

  Next, the automotive lamp A shown in the partial diagram (a) of FIG. 4 is in a state in which the socket portion 4 is rotated 90 ° toward the front side with respect to the arm portion 16 from the state of the partial diagram (b) of FIG. The automobile lamp A shown in the partial diagram (b) is a state in which the arm portion 16 is rotated 90 ° toward the front side with respect to the socket portion 4 from the state shown in the partial diagram (a) in FIG. 4. .

Next, the automotive lamp B shown in FIG. 5 will be described. The socket section 4 and the arm section 16 are the same as the automotive lamp A, but the illumination section 9 has five LEDs 7 on the circular lamp body 6. A fitting shaft 8 is erected on the opposed peripheral surface of the lamp body 6 so as to be orthogonal to the irradiation optical axis of the LED 7, and the upper surface of the lamp body 6 of the circular disc body is transparent to contain all the LEDs 7. A lead wire 5 formed by fitting a cap 18 and having one end connected to the positive electrode 1 and the negative electrode 2 at the bottom of the fitting hole 13 is extended from the socket part 4 with a required play length. The other end is connected to the electric path of the lamp body 6.
The front lamp and the plan view of the automobile lamp B thus configured are shown in the partial views (a) and (b) of FIG. 5, respectively, and the partial view (c) is the illumination unit 9 of the partial view (a). Is rotated 90 ° downward about the axis of the fitting hole 10 of the arm portion 16, and the partial view (d) shows the state in which the arm portion 16 is moved relative to the socket portion 4 from the state shown in the partial view (b). This shows a state where it is turned 90 ° around the axis of the fitting hole 13 toward the front side. In addition, the illumination unit 9 can be rotated 90 ° upward from the state of the partial view (a) with respect to the arm unit 16 symmetrically with the partial view (c).
Accordingly, in the same manner as the automobile lamp A, the automobile lamp B is also identical to the wedge 3 on which both electrodes are disposed, that is, by the engagement of the arc groove 17 and the protrusion 15 around the axis of the fitting hole 13. Irradiating surface required by the LED 7 with a wide degree of freedom of total 180 ° rotation with respect to the arm portion 16, that is, about 90 ° around the axis of the fitting hole 10. Can follow.

Next, the car lamp C shown in FIG. 6 will be described. In this lamp, the illumination part 9 and the arm part 16 are the same as the car lamp B, but the socket part 4 is fitted in place of the wedge 3 as the socket body. The fitting portion 12 having the opening 13 opened is housed in a conductive cylinder 19, and the + electrode 1 and the − electrode 2 disposed in the conductive cylinder 19 are connected to the lead wire 5 at the bottom of the fitting hole 13. Connected to one end.
Therefore, in the same manner as in the car lamps A and B, the car lamp C is also provided with the arc groove 17 as shown by the arrow shown below the arm 16 around the axis of the fitting hole 13 as shown in the partial diagram (a). And the projection 15 rotate 90 ° in one direction, and the illumination unit 9 rotates 180 ° in total 90 ° up and down 90 ° as shown by the arrows around the axis of the fitting hole 10 with respect to the arm unit 16. It can follow the irradiation surface required by the LED 7 with a wide degree of freedom of movement. In the part (b), the socket part 4 is rotated 90 ° rearward around the axis of the fitting hole 13 with respect to the arm part 16 in the part (a), and the arm with respect to the socket part 4 is shown. The state which rotated the part 16 90 degrees to the back side is shown.

Next, the automotive lamp D shown in FIG. 7 will be described. The wedge 3 serving as the socket body and the fitting portion 12 having the fitting hole 13 opened therein are integrated, and the + electrode 1 is provided at the bottom of the fitting hole 13. The terminal plate 21 to which the electrode 2 is connected, the lower end is bent in a U shape, and the elastic force urging portion 20 is formed is joined point-symmetrically to the axial center of the fitting hole 13 as shown in FIG. The socket portion 4 is formed by cutting out the arc groove 17 in a 90 ° rotational range symmetrically on the inner peripheral surface of the fitting hole 13, while the arm portion 16 is a fitting hole of the horizontal support piece 11. 10, a conductive ring 22 is fitted inside, and a projection 15 projecting from the top surface of the horizontal semi-cylindrical portion 14 of the combined cylindrical portion is fitted into the circular arc groove 17 and fitted through the inside of the horizontal semi-cylindrical portion 14. The lead wire 5 extending from the bottom of the hole 13 has a longitudinal groove 2 vertically formed on the inner peripheral surface of the horizontal semi-cylindrical portion 14 at one end thereof. And a contact 26 at the tip thereof is brought into contact with the elastic force urging portion 20 of the terminal plate 21 through a convex terminal 25 fitted in a fitting hole 24 raised perpendicular to the vertical groove 23, The other end of each electrode is guided by the fitting groove 27 on the inner surface of the arm portion 16 and connected to the ring 22, which is opposed to the lamp body 6 on which the six LEDs 7 of the illumination portion 9 are disposed. A fitting cap 8 that is erected on the peripheral surface and that is rotatably fitted to a conductive cap 30 that is connected to each electric path 29 that is guided from a through hole 28 that is open to the fitting shaft 8. Made up.
Therefore, the lead wire 5 in the automotive lamp D is connected to each electrode by an indirect connection between the contact 26 and the elastic force biasing portion 20 of the terminal plate 21 at one end, and the arm portion 16 at the other end. The ring 22 in the fitting hole 10 and the cap 30 on the fitting shaft 8 of the illumination unit 9 are connected in a freely rotatable manner by 360 °.
As described above, in the automobile lamp D as well as the automobile lamps A to C, the axis of the fitting hole 10 can be rotated by 90 ° in one direction around the axis of the fitting hole 13. It is possible to follow the irradiation surface of the LED 7 of the illuminating unit 9 with respect to both electrodes with a wide degree of freedom so that it can rotate 360 ° around. As for the rotation relationship between the ring 22 and the cap 30, positioning means are provided every 90 °, and 360 ° can be freely rotated even when the terminal 25 of the lead wire 5 and the electrodes are in contact with each other at the bottom of the fitting hole 13. This is a matter that can be easily recalled from the present invention.
As described above, the automobile lamps A to D of the present invention can be applied to various lamps used in automobiles because the irradiation surface by the LED 7 of the illumination unit 9 can be secured with a wide degree of freedom with respect to the postures of both electrodes. In addition, it can be used for a wide range of vehicle types.

  The automobile lamp according to the present invention can ensure a wide irradiation surface with respect to the postures of both electrodes, and therefore can be widely applied to an installation place and a vehicle type, so that mass production is possible and its sales channel is expanded.

  It is a disassembled perspective view of the lamp | ramp A for motor vehicles concerning this invention.   In each posture mode diagram of the lamp A for an automobile, a partial view (a) is a plan view, and a partial view (b) shows the illumination portion 9 in the clockwise direction around the axis of the fitting hole 10 in the partial view (a). FIG. 9C is a state diagram in which the arm portion 16 is rotated 90 degrees backward about the axis of the fitting hole 13 in the partial diagram (a).   It is explanatory drawing at the time of using the lamp | ramp A for motor vehicles of this invention for the tail lamp of a motor vehicle.   In each posture mode diagram of the lamp A for automobiles, a partial diagram (a) is a state diagram in which the socket part 4 is rotated 90 ° from the state of the partial diagram (b) in FIG. FIG. 5 is a state diagram in which the arm portion 16 is rotated 90 ° toward the near side with respect to the socket portion 4 from the state of FIG. 4A.   FIG. 2 is a view showing the posture of the automobile lamp B according to the present invention, in which a part (a) is a front view, a part (b) is a plan view of part (a), and part (c) is a part; It is the state figure which turned the illumination part 9 of (a) 90 degree | times downward (counterclockwise) to the surroundings of the axial center of the fitting hole 10, and a partial figure (d) is an arm part from the state of a partial figure (b). 16 is a state diagram in which 16 is rotated 90 ° toward the near side about the axis of the fitting hole 13 with respect to the socket portion 4.   It is explanatory drawing of the lamp | ramp C for motor vehicles concerning this invention, a part figure (a) is a top view and a part figure (b) is a front view of a part figure (a).   It is a principal part expanded vertical sectional view for description of the lamp | ramp D for motor vehicles concerning this invention.   It is AA arrow sectional drawing of FIG.

1 + electrode 2 −electrode 3 wedge 4 socket portion 5 lead wire 6 lamp body 7 LED
8 fitting shaft 9 illumination part 10 fitting hole 11 horizontal support piece 12 fitting part 13 fitting hole 14 horizontal semi-cylindrical part 15 protrusion 16 arm part 17 arc groove 18 cap 19 conductive cylinder 20 elastic force biasing part 21 Terminal plate 22 Ring 23 Vertical groove 24 Insertion hole 25 Terminal 26 Contact 27 Insertion groove 28 Through-hole 29 Electric path 30 Cap A thru | or D Car lamp

Claims (2)

A lighting unit in which a plurality of LEDs are arranged in a lamp body in which a positive electrode and a negative electrode are disposed, and a lead wire connected to both electrodes and extending from the socket is electrically connected. And an automotive lamp consisting of an arm part having two degrees of freedom in which one end is rotationally joined to the socket part with a required degree of freedom and the other end is rotationally joined to the lamp body with a required degree of freedom .
The arm portion projects from a pair of horizontal support pieces, a united cylindrical portion formed by a horizontal semi-cylindrical portion that is integrally suspended from each horizontal support piece in an L shape, and a top surface of each horizontal semi-cylindrical portion. A forked shape consisting of
The united cylindrical part at one end is fitted into the fitting hole opened in the socket part, and the arc groove is concentrically arranged with the axis of the fitting hole in a 90 ° rotation range and is point-symmetrically opposed. By fitting the protrusions so as not to be separated, they are fitted to the socket portion so as to be rotatable within a rotation range of 90 ° , and the pair of horizontal support pieces at the other end are fitted with the fitting holes at the center in the width direction. in each fitting hole opened in the axial center that is perpendicular to the axis as the shaft center, fitted each erected perpendicular to the irradiation optical axis of each of the opposed peripheral surfaces of the lamp body of the illumination unit LED An automotive lamp that is pivotably fitted to a shaft in a required rotation range. The lead wire is connected to each electrode by indirect connection between the contact at one end thereof and the elastic force biasing portion of the terminal plate of each electrode at the bottom of the fitting hole, and connected at the other end. A ring is connected to each electric path guided from a through-hole opened in each fitting shaft of the lamp body of the illuminating unit, and is externally fitted to each cap fitted on the fitting shaft and indirectly connected to the electric path. The automotive lamp according to claim 1 , wherein the lamps are connected to each other so as to be indirectly rotatable at both ends .

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