JPS5924512B2 - Vehicle lights - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vehicle lamp.

In vehicle lighting equipment that has multiple light chambers, such as rear combination lamps, a back cover is constructed separately from the lamp housing, a bulb is attached to the back cover, and the back cover is assembled from the rear of the lamp housing to attach the bulb. It is configured to be inserted into each light chamber.

However, since conventional vehicle lamps of this type are generally wired via electric wire cords, it has been difficult to automate the process of assembling the socket assembly.

Therefore, it has been proposed to use a printed wiring board, but there are problems such as insufficient electrical contact between the printed wiring on the back cover side and the contacts on the socket side, and increased costs due to the large number of parts. There is a problem. The present invention improves these points, enables electrical connection between the conductor on the back cover side and the contact on the socket side in an extremely stable state, and also enables automation of the assembly process. It is an object of the present invention to provide a vehicle lamp that can reduce the number of parts and keep costs low.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle lamp according to the present invention will be described below with reference to the accompanying drawings. In these figures, 2 is a back cover made of synthetic resin, 22 is a lamp housing,
Reference numeral 23 indicates a lens attached to cover the front opening of the lamp housing, and the back cover 12 holds the bulb 18 via a socket assembly, and when the bulb 18 is inserted into the lamp chamber, the back cover 12 is held. It is configured to be fixed behind the lamp housing 22 with a mounting screw or the like.

In the present invention, a thin metal plate 1 punched out according to a predetermined circuit pattern is fixed to the inner surface of a back cover 2;
A socket assembly including a socket and a contact is constructed separately from the back cover 2, and the socket assembly and the back cover are fixed by simply assembling the socket silk body onto the back cover 22 from the vertical direction, and at the same time, The thin metal plate 1 and the contact are brought into pressure contact.

That is, projections 3 for fixing the thin metal plate are formed at the four corners of the inner surface of the back cover 12. Holes formed at the four corners of the metal thin plate are inserted into the projections 3, and the head of the projection 3 is inserted into the holes formed at the four corners of the metal thin plate. The thin metal plate 1 is fixed to the back cover 2 by caulking. In the case of this embodiment, the thin metal plate is coated with a synthetic resin thin film on its surface, and only the metal surface that comes into contact with the contacts and sockets is exposed to form a conductor exposed portion V. The back cover 2 also has a socket holder 14, which will be described later, installed at a position corresponding to the position where it is installed.
A support wall formed of a vertical surface located on the outer periphery of the socket, on which four locking claws 5 having inclined heads 5a that are inclined low toward the inside are formed, and for receiving the exposed conductor portion V. 6, and a support wall 7 consisting of the inclined surface of the lower blade of the contact.
and form.

Reference numeral 4 denotes a socket holder 1 made of synthetic resin, and a cylindrical part 9 into which a cylindrical metal socket 8 is fitted in the center thereof.
At the same time, an engagement fixing hole 12 for engaging and fixing the curved fixing part 11 of the contact is formed, and locking edges 13 that engage with the locking pawl 5 are formed at the four corners thereof.

10 is a positive side contact made of a thin plate spring,
The curved fixing part 11 is formed in the middle part, and the contact part 15 is formed in one side of the curved fixing part 11 to come into elastic contact with the exposed conductor part v, and also to make elastic contact with the positive terminal of the bulb due to other force. A terminal portion 16 is formed.

8 is a metal socket, and a protrusion 14 (see FIG. 6), which is a protrusion, is provided on the outer periphery of the lower blade.

The socket 8 has a notch 17 into which the terminal 16 of the contact is inserted, and a protrusion 20 that prevents the socket from coming off upward when inserted into the socket holder.
and J slot 2 into which the pin provided on the side of the valve fits.
1. Also, instead of the protrusion 14 shown in FIG.
As shown in FIG. 7, a bent portion 24, which is a protruding portion, may be provided at the tip of the protruding piece 20. The vehicle lamp of the present invention is comprised of the above-mentioned components, and is assembled as described below.

First, the thin metal plate 1 is fixed to the inner surface of the back cover 2 as described above.

Separately, the socket assembly is assembled in advance by fitting and fixing the socket 8 into the cylindrical portion 9 of the socket holder 14, and inserting and locking the curved fixing portion 11 of the contact 10 into the engagement fixing hole 12. and the socket assembly,
The locking edge 13 and the locking claw 5 are aligned and pressed vertically downward.

Then, the head 5a of the locking pawl 5 expands once to allow the socket holder 1 to be press-fitted, and when the socket holder 14 comes into contact with the inner surface of the flap cover 12, the locking pawl 5 returns to its original position and locks the socket holder 14. hold firmly. At the same time, the contact portion 15 of the contact 10 reliably contacts the conductor exposed portion 1' supported by the support wall 7 due to its own elastic restoring force.
Further, the protrusion 14 of the socket 8 presses the exposed conductor portion 17 against the support wall 6 as shown in FIG. 3 to maintain contact between the socket 8 and the negative metal thin plate 1. In this manner, the present invention allows the socket 8 and the contact 10 to be mounted in the socket holder 4.
The socket assembly is constructed by assembling the socket assembly in advance, and by simply pressing the socket assembly against the back cover 2 to which the thin metal plate has been fixed in advance, each conductor exposed portion can be connected to the contact portion 15 of the v-contact or the socket 8. while maintaining reliable electrical contact with the metal thin plate to the butt cover 12,
Since the socket assembly can be assembled to the back cover 2 only in the vertical direction, there is an advantage that the assembly work can be easily automated.

Note that although the illustrated embodiment shows an example in which a bulb with a double filament is incorporated in the lamp chamber on the left side and a helper with a single filament on the right side, the present invention is not limited to such an embodiment. do not have.

[Brief explanation of the drawing]

The attached drawings show one embodiment of the vehicle lamp of the present invention.
Fig. 1 is a cross-sectional plan view, Fig. 2 is a plan view seen from the inside of the back cover with the socket and socket holder attached, Fig. 3 is a sectional view taken along line A-N in Fig. 2, and Fig. 4 is a sectional view of Fig. 2. B of
-B/ sectional view, FIG. 5 is a perspective view of the socket holder, and FIGS. 6 and 7 are perspective views of the socket. 1...Thin metal plate, 2...Back cover, 3...Protrusion for fixing the thin metal plate, 4. ．． ．． ．． ．． ．．
Socket holder 1, 5...Latching claw, 6, 7...
...Supporting wall for exposed conductor part, 8...Socket, 9...Cylindrical part for socket fitting, 10...
... Contact, 11 ... Curved fixing part of contact, 12 ... Engagement holding hole of contact, 13
......Locking edge, 14...Protrusion, 15.
...Elastic contact part, 16...Terminal part.

Claims (1)

[Claims] 1 Consists of a back cover made of synthetic resin, a thin metal plate punched along a predetermined circuit pattern, a socket holder made of synthetic resin, a cylindrical socket made of a metal plate, and a contact made of a metal plate, The back cover is provided with a protruding locking claw having an inclined head that expands once and then returns to its original state when the socket holder is press-fitted from above, and also forms a support wall that supports the conductor exposed portion of the thin metal plate; The socket holder is formed with a cylindrical portion into which the socket is fitted, an engagement holding hole for the contact, and a locking edge corresponding to the locking pawl, and the socket has a conductor exposed portion of a thin metal plate. The contact has a protruding part that presses into contact with the supporting wall of the back cover, and the contact has a curved fixing part held in the engagement holding hole of the socket holder and a conductor supported by the supporting wall of the back cover. An elastic contact part and a terminal part are formed to make elastic contact with the exposed part, the thin metal plate is fixed to the inner surface of the back cover, and the socket and the contact are assembled to the socket holder separately from the back cover. The socket assembly is pressed against the back cover and the socket holder is fixed by the locking pawl, and the elastic contact portion of the contact and the socket are pressed against the conductor exposed portion supported by the support wall. A vehicle lamp characterized in that a protruding portion is pressed into contact with the vehicle.