JP3156997B2 - Lamp socket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp socket for mounting a lamp such as a headlight of an automobile.

[0002]

2. Description of the Related Art In recent years, some lamps such as headlights of automobiles have been developed which have brightness equivalent to that of daylight. In such a lamp, since the voltage is instantaneously increased to a high voltage, the terminal of the lamp socket to which the lamp is mounted is connected to an electric wire by welding to cope with the high voltage.

[0003]

However, in order to connect the terminal of the lamp socket and the electric wire by welding,
There is a problem in that welding equipment and welding work are required, and the production cost is increased.

The present invention has been made in view of the above problems, and aims at eliminating the need for welding equipment and welding work, improving workability and reducing production costs. It is to provide a lamp socket that can be used.

[0005]

In order to achieve the above object, a lamp socket according to the first aspect of the present invention is provided with a tubular portion in a socket body, and the inside of the tubular portion is fitted to a lamp side of a lamp. The socket side fitting part where the part fits,
At the center of the socket-side fitting portion, when the lamp-side fitting portion is fitted to the socket-side fitting portion, one terminal with which the lamp terminal comes into contact is placed around the periphery of the socket-side fitting portion. ,
At the time of fitting the lamp-side fitting portion to the socket-side fitting portion, the other terminals that are in contact with the contact portions on the periphery of the lamp-side fitting portion are provided, respectively, and the one and other terminals are crimped terminals. A lamp socket connected to an electric wire through a lamp, wherein an engaging pin is provided on a peripheral portion of the lamp side fitting portion, and a thick portion is provided on an end portion of the cylindrical portion on an outer peripheral side of the end portion. ,
An insertion groove into which the engaging pin is inserted when the lamp-side fitting portion is fitted is formed in an inner peripheral portion of the tubular portion in an axial direction of the tubular portion from a peripheral side of the tubular portion. In the peripheral portion of the cylindrical portion, an engaging hole is formed in the circumferential direction of the cylindrical portion, the engaging hole being continuous with the end of the insertion groove and engaging the engaging pin by rotation of the lamp. An end of the engaging hole in a direction opposite to an end of the engaging hole , the end of the engaging hole being connected to the engaging hole.
And smaller than the diameter dimension of the engagement pin,
A slit-shaped notch is provided along the circumferential direction of the cylindrical portion, and the insertion groove, the engagement hole, and the notch constitute a lamp engagement portion.

[0006] With this configuration, since the electric wires are connected to the one and the other terminals via the crimp terminals, it is not necessary to perform welding to connect the electric wires to the one and the other terminals.
For this reason, welding equipment and welding work become unnecessary, workability is improved, and production costs can be reduced.

Further, the lamp-side fitting portion of the lamp is fitted into the socket-side fitting portion of the lamp socket, and the lamp-side engaging pin is inserted into the insertion groove. The lamp can be securely mounted on the lamp socket by a simple operation, as in the case where the lamp is engaged with the engagement hole and the lamp is mounted on the lamp socket.

Further, when the engaging pin is inserted into the engaging hole, the engaging hole expands in the fitting direction of the lamp-side fitting portion due to the presence of the notch. Can be reliably inserted into the engagement hole.

According to a second aspect of the present invention, there is provided a lamp socket according to the first aspect, wherein the cylindrical portion of the socket main body is provided with a predetermined distance in a circumferential direction. In the above, a plurality of the lamp engaging portions are provided, and the adjacent lamp engaging portions are connected by a peripheral wall portion of the tubular portion.

According to this structure, not only the same operation and effect as the above-mentioned invention of claim 1 can be obtained, but also a plurality of the lamp engagement portions are provided on the cylindrical portion at predetermined intervals in the circumferential direction. Even if it is provided, the strength of the socket side fitting portion does not decrease because the adjacent lamp engaging portions are connected by the peripheral wall portion of the cylindrical portion, and the socket side fitting portion of the lamp side fitting portion Even if twisting occurs at the time of fitting, the socket-side fitting portion is not deformed, and the lamp can be securely mounted on the lamp socket.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings.
1 (1) is a plan view of the lamp socket according to the present invention with a cover removed, (2) is a front view of the lamp socket, (3) is a side view of the lamp socket,
(4) is a bottom view of the lamp socket, and FIG. 2 is a sectional view taken along line FF in (1) of FIG.

A lamp socket A according to the present invention comprises a socket body 1, a cover 2, one terminal 3 located on the center side of the socket body 1, and another terminal 4 located on the peripheral side of the socket body 1. And a crimp terminal 5 for connection.

The socket body 1 has a circular cylindrical portion 6 as shown in FIGS. 1 and 2, and an end portion of the cylindrical portion 6 has a thick portion on the outer peripheral side of the end portion. A part 6A is provided. The cylindrical portion 6 is formed with a socket-side fitting portion 7, a lamp engaging portion 8, and a terminal lead-out portion 9. The socket-side fitting portion 7 includes a central cylindrical portion 10 and an inner peripheral surface portion 6a of the cylindrical portion 6.
A central terminal mounting portion 11 is formed at the bottom of the cylindrical portion 10, and a side terminal mounting portion 12 is formed around the fitting portion 7. is there.

The terminal mounting portion 11 at the center has a hole 14 for a terminal leg that extends through the terminal lead-out portion 9. Further, the side terminal mounting portion 12 is separated from the fitting portion 7 by a wall portion 15, and a terminal exposed portion 16 is provided above the wall portion 15. The terminal mounting portion 12 has a plurality of terminal leg holes 17 that pass through the terminal lead-out portion 9.

The lamp engaging portion 8 includes a plurality of engaging portions 18 formed at predetermined intervals in a circumferential direction of the cylindrical portion 6, and an inner portion of the cylindrical portion 6. The insertion groove 19 formed in the peripheral surface portion from the peripheral edge 6a side of the cylindrical portion 6 in the axial direction of the cylindrical portion 6 and connected to the end of the engagement hole portion 18; The end provided in the opposite direction to the end connected to the groove 19 is connected to the engaging hole 18 and will be described later.
The circumference of the cylindrical portion 6 is smaller than the diameter of the engagement pin 43.
It has a slit-shaped notch 18a along the direction . A plurality of engaging projections 20 and an electric wire lead-out portion 21 are formed on a lower peripheral surface of the socket body 1. As shown in FIG. 3, the cover 2 has an engagement hole 22 and an electric wire lead-out portion 23 formed therein.

As shown in FIG. 4, one terminal 3 has a lamp contact portion 25 comprising a contact piece 25a opposed to one end of a press-fit portion 24 having a U-shaped cross section, and a terminal leg at the other end of the press-fit portion 24. In this configuration, the parts 26 are provided. This terminal leg 2
6 is provided with an engagement hole 26a.

As shown in FIG. 5, the other terminal 4 has three terminal portions 27 each having a contact portion 27a at the front end.
8 and one terminal leg 29 is formed. The terminal leg 29 has an engagement hole 29a.

As shown in FIG. 6, the crimping terminal 5 includes a wire crimping portion 30 having a pair of crimping pieces 30a, and a terminal crimping portion 31 extending in a direction perpendicular to the axis A of the wire crimping portion 30. The terminal crimping portion 31 has a surface portion 32, and a lance portion 33 is formed on the surface portion 32 by cutting and raising. Also, the surface portion 32 is formed with ridges 34L and 34R symmetrical with respect to the axis B of the surface portion 32. The left and right end portions of the surface portion 32 are curved to form a left and right holding portion 35L. , 35R are formed.
The ends of 5L, 35R are located immediately above the ridges 34L, 34R, and the ends of the holding portions 35L, 35R and the ridges 34L,
An insertion crimping portion 36 is provided between the insertion press-bonding portion 36 and 34R. At the end of the insertion crimping portion 36, a stopper portion 37 formed by bending the end of the surface portion 32 at a right angle is formed.

One of the terminals 3 is press-fitted into the terminal mounting portion 11 at the center of the socket main body 1.
The terminal leg 26 of the terminal 3 penetrates through the terminal leg hole 14 and protrudes to the terminal lead-out portion 9, and the other terminal 4 is press-fitted into the terminal mounting portion 12 of the socket body 1. The contact portion 27a of the terminal 4 is exposed from the terminal exposed portion 16 into the socket side fitting portion 7. The terminal leg 29 of the terminal 4 penetrates the terminal leg hole 17 and protrudes to the terminal lead-out portion 9.

The crimp terminal 5 is connected to the ends of the terminal legs 26 and 29 of the terminals 3 and 4, respectively. That is, the ends of the terminal legs 26 and 29 are attached to the insertion crimping portion 36 of the crimping terminal 5 by the stopper portion 3.
7, the lance 33 is engaged with the engaging holes 26a, 29a of the terminal legs 26, 29, and the ends of the terminal legs 26, 29 are Ends of holding parts 35L, 35R and ridges 34L, 34R
And is sandwiched between. The crimp terminal 5 has a core wire 38 crimped on a pair of crimping pieces 30a of the wire crimping portion 30, and an electric wire 39 is connected thereto (see FIG. 6).

A cover 2 is mounted on the socket body 1 by engaging the engaging projections 20 with the engaging holes 22. The respective lead-out portions 21 of the socket body 1 and the cover 2 are provided. , 23 are combined, and the electric wire 39 is led out from these electric wire lead-out portions 21, 23.

As shown in FIG. 7, the lamp B has a lamp body 40. The lamp body 40 has a lamp-side fitting portion 41 fitted into the socket-side fitting portion 7 of the lamp socket A, An engaging portion 42 that engages with the lamp engaging portion 8 of the lamp socket A is formed, and an engaging pin 43 is formed on the engaging portion 42. Further, a circular concave portion 44 is formed on an end face of the fitting portion 41.

A lamp terminal 45 is mounted at the center of the lamp body 40, and a lamp connecting portion 46 of the lamp terminal 45 is exposed on the upper surface of the lamp body 40. The contact portion 47 protrudes into the circular concave portion 44. An annular contact portion 48 is provided around the lamp-side fitting portion 41.

A lamp 49 is connected to the lamp connecting portion 46 of the lamp terminal 45.
Is electrically connected to the lamp terminal 45,
The other contact 49 b of the valve 49 is electrically connected to the contact portion 48.

The lamp B constructed as described above
Is fitted the lamp-side fitting portion 41 into the socket-side engaging portion 7 of the lamp socket A, the engagement pin 4 of the engaging portion 42
3 is inserted into the insertion groove 19, the lamp B is rotated, and the engaging pin 43 is engaged with the engaging hole 18 to be mounted on the lamp socket A. Contacts the lamp contact portion 25 of one terminal 3,
The contact portion 48 on the periphery of the fitting portion 41 is in contact with the contact portion 27a of the other terminal 4.

As described above, according to the present embodiment, the terminal crimping portion 31 is provided with the engaging holes 26a, 29 provided in the terminal legs 26, 29 of the terminals 3 and 4, respectively.
b, a pair of protrusions 34L, 34
R and the insertion crimping part 36 formed by the pair of holding parts 35L, 35R, the engagement hole 2 of the terminal legs 26, 29 of the one and the other terminals 3, 4 respectively.
6a and 29b are engaged with the lance 33, and the terminal leg 2 is engaged.
6 and 29 are inserted into the insertion crimping portion 36 and the holding portion 35 is inserted.
L, 35R and the ridges 34L, 34R,
The respective terminal legs 26 of the one and the other terminals 3, 4;
The crimp terminal 5 is connected to the crimp terminal 29, and the wire 39 can be connected to the crimp terminal 5 by being crimped to the wire crimp portion 30 of the crimp terminal 5, thereby enabling a strong connection. This eliminates the need for welding to connect the electric wire 39 to the respective terminal legs 26, 29 of the one and other terminals 3, 4, and eliminates the need for welding equipment and welding work, thereby improving workability. Become,
Production costs can be reduced.

Further, even if a plurality of lamp engaging portions 8 are provided on the cylindrical portion 6 at predetermined intervals in the circumferential direction, the adjacent lamp engaging portions 8 are connected by the peripheral wall portion of the cylindrical portion 6. Therefore, the strength of the socket side fitting portion 7 does not decrease,
Even if twisting occurs when the lamp-side fitting portion 41 is fitted into the socket-side fitting portion 7, the socket-side fitting portion 7 is not deformed, and the lamp B can be securely mounted on the lamp socket. it can.

When the engaging pin 43 is inserted into the engaging hole 18, the engaging hole 18 expands in the fitting direction of the lamp-side fitting portion 41 due to the presence of the notch 18a. Therefore, the insertion of the engagement pin 43 into the engagement hole 18 can be performed reliably.

[0029]

As described above in detail, according to the lamp socket of the present invention, in order to connect the electric wires to the one and the other terminals via the crimp terminals, the electric wires are connected to the one and the other terminals. No need to be welded to connect. For this reason, welding equipment and welding work become unnecessary, workability is improved, and production costs can be reduced.

[0030] Moreover, fitting the lamp side fitting portion of the lamp socket side engaging portion of the lamp socket, the lamp-side engagement
After inserting the pin into the insertion groove, rotate the lamp
The lamp can be securely mounted on the lamp socket by a simple operation, like the engagement pin is engaged with the engagement hole and the lamp is mounted on the lamp socket.

Further, when the engaging pin is inserted into the engaging hole, the engaging hole has a notch, so that the engaging hole expands in the fitting direction of the lamp-side fitting portion. Can be reliably inserted into the engagement hole.

According to the lamp socket according to the second aspect of the present invention, not only can the same effect as the above-described first aspect of the invention be achieved, but also the cylindrical portion is provided with a predetermined spacing in the circumferential direction. Even if a plurality of the lamp engaging portions are provided,
Since the adjacent lamp engaging portions are connected by the peripheral wall of the cylindrical portion, the strength of the socket-side fitting portion does not decrease, and the lamp-side fitting portion is fitted to the socket-side fitting portion. Even if prying sometimes occurs, the socket-side fitting portion is not deformed, and the lamp can be securely mounted on the lamp socket.

[Brief description of the drawings]

FIG. 1A is a plan view of a lamp socket according to the present invention with a cover removed. (2) is a front view of the lamp socket. (3) is a side view of the lamp socket. (4) is a bottom view of the lamp socket.

FIG. 2 is a sectional view taken along line FF of FIG. 1 (1).

FIG. 3A is a plan view of a cover of the lamp socket according to the present invention. (2) is a front view of the cover. (3) is a side view of the cover. (4) is a bottom view of the cover.

FIG. 4A is a plan view of one terminal. (2) is a front view of the same terminal. (3) is a front view in which the terminal leg part of the terminal was partially omitted.

FIG. 5A is a plan view of the other terminal. (2) is a front view of the same terminal. (3) is a bottom view of the terminal. FIG. 4D is a sectional view taken along line GG of FIG.

FIG. 6A is a plan view of a crimp terminal. (2) is an arrow view from the C direction of (1).

FIG. 7A is a front view of the lamp. (2) is an arrow view from the D direction of (1).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket main body 2 Cover 3 One terminal 4 The other terminal 5 Crimp terminal 8 Lamp engagement part 18 Engagement hole part 18a Notch part 19 Insertion groove 26 Terminal leg part 26a of one terminal 26a Engagement hole part 29 The other Terminal leg portions 29a of the terminals 29a Engagement hole portions 30 Wire crimping portions 33 Lance portions 34L, 34R Protrusions 35L, 35R Pressing portions 36 Insertion crimping portions 39 Electric wires 41 Lamp side fitting portions 43 Engagement pins

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model No. 5-59779 (JP, U) US Patent 4,615,523 (US, A)

Claims (2)

(57) [Claims] 1. A cylindrical portion is provided in a socket body, and the inside of the cylindrical portion is used as a socket side fitting portion to which a lamp side fitting portion of a lamp is fitted, and a central portion of the socket side fitting portion. At the time of fitting the lamp-side fitting portion to the socket-side fitting portion, one terminal with which the lamp terminal comes into contact is attached to the periphery of the socket-side fitting portion, At the time of fitting to the socket-side fitting portion, the other terminals with which the contact portion of the peripheral portion of the lamp-side fitting portion comes into contact are provided,
A lamp socket in which an electric wire is connected to the one and the other terminals via a crimp terminal, wherein an engaging pin is provided on a peripheral portion of the lamp-side fitting portion, and the end portion is provided at an end of the cylindrical portion. A thick portion is provided on an outer peripheral side of the cylindrical portion, and an insertion groove into which the engaging pin is inserted when the lamp-side fitting portion is fitted is formed on an inner peripheral portion of the tubular portion, at a peripheral edge of the tubular portion. An engaging hole portion formed in the axial direction of the cylindrical portion from the peripheral portion of the cylindrical portion and connected to the end of the insertion groove and engaged with the engaging pin by rotation of the lamp. The engaging pin is formed in a circumferential direction of the cylindrical portion , and the engaging pin is connected to the engaging hole at an end of the engaging hole opposite to an end connected to the insertion groove.
Is smaller than the diameter of the cylindrical portion and extends along the circumferential direction of the cylindrical portion.
A lamp socket, wherein a slit-shaped notch is provided, and the insertion groove, the engaging hole, and the notch constitute a lamp engaging portion. 2. A plurality of said lamp engaging portions are provided on said cylindrical portion of said socket main body at predetermined intervals in a circumferential direction, and said adjacent lamp engaging portions are peripheral wall portions of said cylindrical portion. The lamp socket according to claim 1, wherein the lamp sockets are connected.