JP3062913B2 - Lamp body for vanity mirror and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel lamp body for a vanity mirror and a method of manufacturing the same. Specifically, a new vanity mirror lamp body that improves the accuracy of assembling contacts to the body, eliminates the risk of short-circuits, and saves labor for assembling contacts, contributing to cost reduction. And a method for producing the same.

[0002]

2. Description of the Related Art Some vanity mirrors installed in the interior of an automobile are provided with lamps, and the lamp bodies of the lamps include those shown in FIGS.

Reference numeral a denotes a lamp body having a vertically long frame shape, which is mounted on an opening formed adjacent to a mirror mounting portion of a mirror body (not shown).

Bulbs b, c are fixed to the back side of the lamp body a, and the bulb f is held by holding pieces d, e provided on the front side of the bulb b, c.

[0005] Reference numeral g denotes a switch, from which a terminal piece h is projected. The contact portion i provided on the bulb holding bracket b is in contact with a terminal (not shown) exposed on the lower surface of the housing j of the switch g.
Is pressed, the terminal piece h and the terminal (not shown) with which the contact portion i is in contact with the inside of the housing j of the switch g are brought into contact.

[0006] Then, a terminal piece l formed on the bulb holding fixture c and a terminal piece h of the switch g are protruded into a hole m formed on the lamp body a, where the hole m and the two terminal pieces h are provided. , L form a connector n.

When a vanity mirror (not shown) is attached to a sun visor (not shown), a connector provided at the end of a wire harness extending from the sun visor side is connected to the connector n, and the light bulb f is switched to a switch g.
Is connected to the power supply section on the vehicle body side via the.

[0008]

In the above-mentioned conventional vanity mirror lamp body a, the separately formed bulb holding brackets b and c and the switch g are connected to the body main body a.
Must be separately assembled, which is troublesome in assembling and causes an increase in cost.

Further, since each of the light bulb holding members b and c and the switch g are assembled one by one to the body main body a, it is difficult to obtain an assembling accuracy between the light bulb holding metal members b and c and the switch g.
In some cases, there is a danger of a short circuit.

[0010]

According to the present invention, a vanity mirror is provided.
The method of manufacturing a lamp body has been made to solve the above-mentioned problem, and the first is a method of manufacturing a plurality of types of components.
Contact set with tact integrated via bridge
Into the body body mold,
Close by the holding pin protruding from both molds
Positioning by holding two adjacent contacts in contact with each other
In the body body molding die,
Inject fat into the body and contact
When molding a lamp body intermediate with an integrated lamp
Both portions adjacent to each other in the proximity state of the two contacts
After forming an exposed hole in the body,
Cut the bridge to electrically connect the contacts
To make a lamp body for vanity mirrors.
And the second is to remove the end or edge of the contact.
Multiple types of contacts bent to form embedded pieces
A contact set that integrates the
Insert the body into the mold
Inject resin for body body into mold for
Lamp with integrated body and contact set
After molding the body intermediate, cut the bridge
The contacts are electrically independent and
The third one is to manufacture lamp bodies for
Integrates multiple types of contacts through bridges
Insert the contact set into the body body molding die.
And a resin for the body body is placed in the body body molding die.
Inject the plastic body and contact set
When molding a lamp body intermediate with
Then, apply a part of the resin for the body to a part of the surface of the contact.
Press the holding part that presses the part from the front side
After integrally forming from the body of the day, cut the bridge
The contacts are electrically independent of each other
To manufacture a lamp body for a mirror.
The object is integrated with multiple types of contacts via a bridge
The contact set into the body body molding die.
Before injection of resin into the body body molding die.
Stand up and push at least 1
Press the type of contact against the other mold and
Inject resin for body body into mold for body molding and synthesize
Resin body and contact set are integrated
After molding the lamp body intermediate,
The contacts are electrically isolated and the battery
This is to manufacture lamp bodies for Niti mirrors.

Further , the lamp body for a vanity mirror according to the present invention is provided.
Lee , first, bridges multiple types of contacts
Molding of a contact set integrated via
Multiple punching on synthetic resin body body
A hole is formed and the bridge is cut at the punched hole.
And the above contacts are electrically independent.
With a cap holder to hold the bulb cap
Embedded piece formed by bending the end or edge of the object
Is embedded in the body of the body, and the second one
Integrates multiple types of contacts through bridges
Integrated contact set by insert molding
A plurality of punched holes are formed in the body of the synthetic resin,
The bridge is cut at the punched hole and the plurality of cores are cut.
The contact is electrically isolated and the body
A through hole is formed, and two contacts are brought into proximity from the through hole.
The adjacent part is exposed in the state, and the third
The object is integrated with multiple types of contacts via a bridge
Integrated contact set by insert molding
Multiple punched holes are formed in the synthetic resin body
The bridge is cut in the punched hole, and the
Number of contacts are electrically isolated and the bulb mouth
Some of the contacts with a base holder to hold the gold
Pressing part in contact with the front side is formed integrally from the body body
The fourth is for blocking multiple types of contacts.
Insert a contact set integrated through the ridge
On the body of synthetic resin
The punched hole is formed, and the bridge is formed in the punched hole.
Being cut off, the plurality of contacts are electrically independent,
Part of two of the inserted contacts
Are protruded out of the body body to form terminal pieces.
Constitutes the switching contact of the switch section, and the
Connection part connected to the contact main part is embedded in the body body
And a bent portion is formed in the connection portion so that the terminal
The spacing between the pieces is adjusted .

[0012]

Accordingly, the lamp body for the vanity mirror according to the present invention is provided.
Manufacturing method, multiple types of contacts
The contact set integrated with the body is used for molding the body
Insert into the mold to mold the body and run
Form the Pubodi intermediate, then punch out the bridge
Each contact is electrically independent, and the vanity mirror
Because it is used to manufacture pump bodies, it is extremely efficient
We can manufacture lamp bodies for vanity mirrors.
Cost can be reduced, and
This improves the accuracy of assembly between components.

Also, the lamp body for a vanity mirror according to the present invention is provided.
B), there are several types of contacts
Body formed by insert molding of the body formed
Since it is molded integrally with the
Saves time and effort by incorporating each
And cost can be reduced. In addition, each contour
Components are assembled by insert molding,
The assembly accuracy between tacts is improved, and the contact
Unnecessary parts are covered with resin,
No danger.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a lamp body for a vanity mirror and a method of manufacturing the same according to the present invention will be described below with reference to the illustrated embodiments.

First, a lamp body for a vanity mirror according to the present invention will be described, and then a manufacturing method thereof will be described.

In FIG. 1, reference numeral 1 denotes a lamp body for a vanity mirror, which comprises a body body 2 made of synthetic resin and three contacts 3, 4 and 5 which are incorporated into the body body 2 by so-called insert molding.

The body 2 is made of a synthetic resin such as AB
It is formed of an S resin or the like, has a front face opening, and is formed in a flat box shape having a shallow depth and a substantially vertically elongated rectangle as viewed from the front.

At the upper and lower ends of the inner bottom surface of the body body 2, there are formed bases 6, 6 'projecting slightly forward, and insertion holes 7, 7 are provided at substantially the center of the bases 6, 6'. ′ Are formed, and two punches are arranged vertically at a position near the left end of the upper base 6, and one punch is provided adjacent to both sides of the lower end of the insertion hole 7. A hole 8 is formed.

Further, projections 9 and 10 project upward from the left end and a position slightly rightward from the center of the upper surface of the body 2. An L-shaped notch 11 is formed at the upper end of the right side surface of the left protrusion 9, and the upper end of the right protrusion 10 is
A downward abutting surface 12 is formed by being bent in a letter shape.

A projection hole 13 is formed from the base of the projection 9 to the upper end of the peripheral wall.

Reference numerals 14, 14 denote positioning ribs protruding from the center of the inner surfaces of the side walls 15, 15 in the vertical direction so as to extend in the front-rear direction, and front end portions 14a, 14a of the inner surfaces.
Is an inclined surface which is inclined so as to be displaced toward the side walls 15, 15 toward the front end.

Reference numeral 16 denotes a tongue-shaped pressing portion protruding rightward from the rear end of the inner surface of the left side wall 15 slightly above the positioning rib 14.

Reference numeral 17 denotes a positioning hole formed in the back plate 18 at a position slightly above the holding portion 16.

A plurality of small holes 20, 20,... Are formed in a portion of the back plate 18 other than the bases 6, 6 ', that is, in a portion corresponding to the central portion 19 on the back surface.

Reference numeral 21 denotes a protective plate, which is formed integrally with the body 2 so as to cover the rear side between the projections 9 and 10 except for the right end thereof.

The contacts 3, 4, 5 are made of a conductive and elastic metal material, for example, stainless steel (for example, SU).
Although it is formed in S304), it may be formed of brass, phosphor bronze, or the like in order to increase conductivity and durability.

The contact 3 is formed by integrally forming a base holder 22, a terminal piece 23, and a connecting portion 24 connecting these 22, 23 with each other. The base holder 22 includes a base portion 25 and holding pieces 26, 26 that are raised forward from both upper and lower edges of the base portion 25.
At the position near the tip of 26, constricted portions 27, 27 that are curved so as to approach each other are formed. An embedding piece 25a protrudes from the right edge of the base portion 25, and the embedding piece 25a is bent so as to face diagonally rearward.

The distance between the tips of the holding pieces 26, 26 is smaller than the vertical width of the base portion 25.
6, 26, rising portions 26 'from base portion 25, 2
6 'is not a right angle, but is formed in a curved so-called R surface.

The connecting portion 24 of the contact 3 extends substantially vertically in a strip shape, and a step 24a is formed at an intermediate portion thereof.
The upper half 24b and the lower half 24c are divided by the step 24a as a boundary, and the upper half 24b is located slightly forward of the lower half 24c. The upper half portion 24b is located in a state of being embedded in the left end of the upper base 6 and the front end of the left side wall 15 of the body body 2. The lower half 24c is formed so that the right edge of a substantially middle portion thereof protrudes rightward and is wide, and a positioning hole 28 is formed at a position closer to the right of the portion. The lower half portion 24c has a substantially left half portion buried in the rear end portion of the left side wall 15 of the body main body 2, and the remaining portion and the base holder 22 are attached to the body main body 2. Are located in a shallow concave portion 29 formed at the left end of the central portion 19 of the inner bottom surface of the inner surface.

The embedded piece 25a formed in the base portion 25 of the base holder 22 is attached to the back plate 18 of the body body 2.
Embedded in And the lower half 24 of the connecting portion 24
c is formed in the back plate 1 of the body 2.
8 is aligned with the positioning hole 17 formed in the hole 8. Also,
A pressing portion 16 protruding from the left side wall 15 of the body main body 2 is provided on the front side of a portion near the lower end of the lower half 24 c of the connecting portion 24.
Are positioned in contact with each other, which prevents the connecting portion 24 from floating forward.

The terminal piece 23 is provided so as to project rightward from the surface of the body main body 2 which faces the right side of the cutout 11 of the left projection 9 with its surface facing up and down. The right end is located close to the left side surface of the upper end of the right protrusion 10.

The terminal piece 23 is formed such that the intermediate part 23c is narrower than the base part 23a and the tip part 23b.

A bent portion 30 that is bent in a concave shape is formed at the upper end portion of the connection portion 24, that is, at a portion close to the terminal piece 23. As a result, the position of the terminal strip 23 is slightly displaced downward.

The contact 4 is composed of a main part 32 having a connection hole 31 formed therein and a terminal piece 33 integrally connected by a connection part 34. Engagement projections 31a, 31a protrude from two opposing positions of the opening edge of the connection hole 31. The connecting portion 34 has a crank shape in which two L-shaped portions are continuous from each other when viewed from the front, and connects the upper end of the left end edge of the main portion 32 and the left end of the terminal piece 33. Further, the terminal piece 33 is bent upward at the base end thereof with respect to the connecting portion 34 so that the surface thereof is oriented in the vertical direction. Further, a projection 3 projected upward is provided at the tip of the terminal piece 33.
3a are formed.

The main part 32 of the contact 4 is buried in the base 6 above the body 2 except for the peripheral part of the connection hole 31, and the connection hole 31 is located on the front side of the insertion hole 7.
The diameter of the connection hole 31 is slightly smaller than the diameter of the insertion hole 7, and the opening edge of the connection hole 31 is located inside the opening edge of the insertion hole 7 when viewed from the front-back direction.

The connecting portion 34 is embedded in the upper base portion 6, and the terminal piece 33 is formed by cutting out the notch 1 of the left projection 9 of the body 2.
The contact 3 protrudes rightward from a position immediately below the contact 1 and faces the terminal piece 23 of the contact 3 in parallel under the terminal piece 23 to constitute a switching contact portion of the switch.

As described above, by forming the switching contact portion of the switch by the terminal pieces 23 and 33 of the contacts 3 and 4, a separate switch component g as in the conventional example can be omitted. The labor for assembling such switch parts can be omitted, and the cost can be reduced.

Further, since the protective plate 21 is located on the back side of the terminal strips 23 and 33, when the lamp body 1 is mounted on a vanity mirror to be described later, the terminal strips 23 and 33 are not used.
33 can be prevented from directly contacting the vanity mirror, and the terminal pieces 23 and 33 can be prevented from being deformed or damaged.

Further, the distal end 33b of the terminal piece 33 is located below the abutting surface 12 of the projection 10 on the right side of the body 2 so as not to move above the abutting surface 2.

In this manner, both the terminal piece 33 and the terminal piece 23 are prevented from being too close to the terminal piece 23 to cause a short circuit.
A predetermined clearance is maintained between 3 and 23. The portion near the left edge of the upper end of the connection portion 34 of the contact 4 and the portion near the right edge of the upper end of the connection portion 24 of the contact 3 are exposed from the above-mentioned prospective hole 13 of the body 2.

The contact 5 includes a main part 35 and the main part 35.
A base holder 36 protruding rightward from a substantially central portion of a right side edge of the main portion 35 and a connection piece portion 38 connected to a lower edge of the main portion 35 and having a connection hole 37 at the center portion are integrally formed. Become.

The connecting piece 38 and the main portion 35 are connected to each other via a connecting portion 39. The connecting portion 39 extends vertically and has a step portion 39a extending forward and backward in the middle. Thus, the connecting piece 38 is located slightly behind the main part 35.

The main portion 35 has a substantially U-shape when viewed from the front.
a are projected, and these embedded pieces 35a, 35
are bent so as to face diagonally backward.

The base holder 36 comprises a base portion 40 and holding pieces 41, 41 which are raised forward from both upper and lower edges of the base portion 40. The holding pieces 41, 41 Constricted part 4 curved so as to approach
2, 42 are formed.

The distance between the tips of the holding pieces 41, 41 is smaller than the vertical width of the base portion 40.
1, 41 rising portions 41 'from base portion 40, 4
1 'is not a right angle, but is formed in a so-called curved R-shape.

The engagement projections 37a and 37a are formed from two opposing positions of the opening edge of the connection hole 37 of the connection piece 38.
a is protrudingly provided.

The main body 35 and the base holder 36 of the contact 5 are located in a shallow recess 43 formed on the inner bottom surface of the body main body 2, and the connecting piece 38 is provided on the lower base of the body main body 2. The connection hole 37 is buried in the portion 6 'except for the peripheral portion of the connection hole 37, and the connection hole 37 is located on the front side of the insertion hole 7'. The diameter of the connection hole 37 is slightly smaller than the diameter of the insertion hole 7 ', and the opening edge of the connection hole 37 is located inside the opening edge of the insertion hole 7' when viewed from the front-back direction. The center of the right end of the base holder 36 is the right positioning rib 1.
4 is in contact with the rear end face.

The four embedded pieces 35a, 35a,... Formed in the main portion 35 are provided on the back plate 1 of the body body 2.
8 are buried in the interior.

Then, the small holes 20, 2,
.., The connection part 24 of the contact 3, the base part 25 of the base holder 22, and the main part 35 of the contact 5.
And the base part 40 of the base holder 36 is located.

Reference numeral 44 denotes a vanity mirror, 45 denotes a body thereof, 46 denotes a mirror attached to the body 45, and 47 denotes a concave portion formed beside the mirror 46.

The vanity mirror lamp body 1 is fitted and fixed in the recess 47. Then, a tube 49 having bases 48, 48 at both ends is provided with the holding pieces 26, 2 of the base holder 22.
6 and the holding pieces 41, 41 of the base holder 36, each of which is clamped and held separately, is disposed in the lamp body 1, and the front opening of the lamp body 1 is covered by a lens body (not shown) to constitute the lamp 50. You.

The distance between the opposing surfaces of the positioning ribs 14 is equal to or slightly larger than the length of the tube 49. As described above, the tube 49 is connected to the base holder 22. , 36, the end of the base 48 or 48 abuts against the inclined surface 14a or 14a of the positioning rib 14 or 14 even if the position of the tube 49 is slightly shifted left and right. It is moved to the side along the inclined surface 14a and is positioned at a correct position. The positioning ribs 14 and 14 are provided for preventing unnecessary movement of the bulb 49 to prevent an accident such as a short circuit.

Reference numeral 51 denotes a cover rotatably supported by the body 45 so as to open and close the front surfaces of the mirror 46 and the lamp 50. When the cover 51 is released, the operation projection 52 provided on the cover 51 opens. Terminal piece 23 of the contact 3
Is pressed from above to deflect the terminal strip 23 so that the tip 23b moves downward, whereby the terminal strips 23 and 33 come into contact, and power is supplied to the bulb 49. (See FIG. 2).

Since the terminal piece 23 has a narrower intermediate portion 23c than the base end 23a and the distal end 23b, when the terminal piece 23 is bent by the action projection 52, Concentration of stress on local parts can be avoided, and the durability of the terminal piece 23 can be increased.

Further, since the protrusion 33a protruding toward the terminal piece 23 is formed at the tip 33b of the terminal piece 33, when the terminal piece 23 is bent toward the terminal piece 33, the terminal piece 23, The tips of the 33 can surely come into contact with each other, and it is possible to avoid poor contact due to variations during molding.

Reference numeral 53 denotes a sun visor installed in the interior of the vehicle, and a concave portion 54 formed in the sun visor 53.
The vanity mirror 44 is embedded therein.

In the concave portion 54 of the sun visor 53, conductive structural members 55 and 56, which are respectively connected to the respective terminals of the power supply of the automobile, are arranged. A screw 57 inserted through the hole 7 is screwed into the structural member 55, and the connection hole 37 is also inserted from the front side.
And the screw 57 'inserted through the insertion hole 7'
Screwed. The screws 57 and 57 'are formed of a conductive material, so that the contact 4 is electrically connected to the structural member 55 via the screw 57, and the contact 5 is connected to the structural member 55 via the screw 57'. 56 and is electrically connected. Therefore, when the terminal pieces 33 and 23 come into contact with each other, the power supply-structural member 55-contact 4-contact 3
-One base 48 of the tube 49-The other base 4 of the tube 49
A closed circuit of 8-contact 5-structural member 56-power supply is formed, and the bulb 49 is turned on.

The engagement projections 31a, 31a, 37a, 37a formed in the connection holes 31, 37 are screws 57, 5
The contacts 4 and 5 and the screws 57 and 5
7 ', and the diameter of the insertion holes 7, 7' of the body body 2 is made larger than the diameter of the connection holes 31, 37, so that the insertion holes 7, 7 are formed when the body body 2 is formed. In the event that a burr may occur at the opening edge of the connecting hole 31, the screw 57, 57 'can surely contact the opening edge of the connection hole 31, 37.

Next, a method of manufacturing the lamp body 1 for a vanity mirror will be described.

First, a contact set in which the contacts 3, 4, and 5 are integrated via a bridge is formed.

Reference numeral 58 denotes a contact set, and contacts 3, 4, and 5 are integrally formed via bridges 59, 59,... That is, the connection portion 24 of the contact 3
Bridges 59, 59 respectively connect two positions vertically separated from each other on the right edge of the portion near the upper end of the contact 4 and two positions near the lower end and the upper end of the left edge of the main portion 32 of the contact 4; The bridge 59 is located between two positions on the right and left ends of the lower edge of the main portion 32 of the contact 4 and two positions on the left and right ends of the upper edge of the main portion 35 of the contact 5.
, Thereby forming a contact set 58 in which the contacts 3, 4, and 5 are integrated.

Reference numeral 60 denotes a material of the contact set 58, for example, a thin plate of SUS, brass, phosphor bronze, or the like.
Its thickness is around 0.25 mm.

The material 60 is stamped and formed, and the prototypes 3 ′ to become the contacts 3, 4 and 5 of the contact set,
An original contact set 61 consisting of 4 'and 5' is formed.

Next, the prototypes 3 ', 4', 5 'of the prototype contact set 60 described above are bent to obtain
The three contacts 3, 4, 5 form an integrated contact set 58.

That is, with respect to the contact prototype 3 ',
The base 22 corresponding to the base holder is bent and the base holder 2 is bent.
2 is formed, and the base of the terminal piece equivalent part 23 'is bent upward to form the terminal piece 23. Also, a bent part 30 is provided in the terminal part equivalent part 23' side of the connection part equivalent part 24 '. The connection part 24 is formed. Further, the embedded piece 25a is bent.

Further, with respect to the contact prototype 4 ',
The base of the terminal piece equivalent part 33 'is bent upward to make the terminal piece 3
Form 3

It should be noted that the terminal pieces 23 and 33 need to be positioned such that their planes face each other and are close to each other in a state where the terminal pieces 23 and 33 are incorporated in the body body 2. However, at the stage when the original contact set 60 is formed, the terminal piece equivalent portion 33 'has a certain width in the direction away from the terminal piece equivalent portion 23', so that both cannot be brought close to each other. Therefore, when these 23 'and 33' are bent at their respective bases, the terminal pieces 23 and 33 may be too far apart from each other. In such a case, the bent portion 30 is formed in the connecting portion 24 so that the clearance between the terminal pieces 23 and 33 can be adjusted to a suitable range.

As for the contact prototype 5 ', the base holder 36' is bent to form the base holder 36, and the continuous part 39 'is replaced with the base holder equivalent 36'.
Each of the side ends and the connection piece-equivalent portion 38 'is bent to form a step between the base holder-equivalent portion 36' and the connection piece-equivalent portion 38 '.

The above-mentioned contact set 58 is inserted so as to be positioned in a body body molding die of a molding machine provided with a body body molding die, and the body body resin is placed in the body body molding mold. Injection forms a lamp body intermediate in which the resin body 2 and the contact set 58 are integrated.

Are pressing pins, and through holes 64, 64,... Formed in one of the molds 63.
.. is inserted into the cavity 66 and is projected into the cavity 66, and the back surface of the middle portion of the connection portion 24 of the contact 3 and the back surface of the central portion of the base portion 25 of the base holder 22;
The back surface of the left and right ends of the upper end of the main portion 35 of the contact 5,
The lower surface of the right and left ends of the lower end portion, the rear surface of the right edge of the substantially central portion, and the rear surface of the central portion of the base portion 40 of the base holder 36 are pressed, and these surfaces are pressed against the cavity surface of the other mold 65. Things. As a result, the surface of the connection part 24 of the contact 3 and the surface of the base part 25 of the base holder 22, the surface of the main part 35 of the contact 5 and the surface of the base part 40 of the base holder 36 are pressed against the cavity surface of the other mold 65. The resin for the body body 2 is reliably prevented from flowing into the surface side of the portions 24, 25, 35, and 40, and these portions 24, 25, 35, and 40 are exposed on the inner bottom surface of the body 1 and the reflection surface is formed. Function can be fulfilled. In addition, these parts 24, 25, 35,
When the lamp 40 is exposed to the inner bottom surface of the body 1, the radiation of the heat of the bulb 49 to the body body 2 at the time of lighting is cut off, and the heat resistance of the lamp body 1 is improved.

The contacts 3 and 5 are connected to the other mold 6
By being firmly pressed against the cavity surface of 5, the positions of the contacts 3 and 5 are stabilized, and the positions of the contacts 3 and 5 are prevented from being moved by the injection pressure during molding.

Further, the buried pieces 25a, 35a, 35a,... Formed on the contacts 3, 5 are buried in the back plate 18 of the body body 2. Therefore, when replacing the bulb 49, when removing the old bulb 49, the base portions 25, 40 are attached to the base holders 22 and 36.
Are exerted on the base plate 25 of the base holders 22 and 36 by embedding the embedded pieces 25a, 35a, 35a,.
40 is prevented from being peeled off from the back plate 18.
In addition, the pressing part 16 which covers a part of the connecting part 24 of the contact 3 from the front also contributes to prevention of such peeling.

The pressing pins 62, 62,
Are located in the cavity 66 after molding, and remain as small holes 20, 20,.

Reference numeral 67 denotes a positioning pin projecting from the other mold 65, which is inserted into the positioning hole 28 of the contact 3 and ends in the cavity 66. Thereby, the position of the contact 3 is stabilized, and the position of the contact 3 is prevented from moving due to the injection pressure during molding.

The portion where the positioning pin 67 was located in the cavity 66 at the time of molding remains as the positioning hole 17 in the body 2 after molding.

Reference numeral 68 denotes a press pin protruding from one mold 63, and reference numeral 69 denotes a press pin protruding from a position corresponding to the press pin 68 of the other mold 65. Two molds 6
When the molds 3 and 65 are clamped, the portion near the upper end of the connecting portion 24 of the contact 3 and the upper end of the connecting portion 34 of the contact 4 close to the portion are clamped between the tips of the holding pins 68 and 69. Thus, these portions are prevented from moving and coming into contact with each other due to the injection pressure at the time of molding.
If these parts move from a predetermined position even if they do not come into contact with each other, there is a problem that the positional relationship between the terminal strips 23 and 33 is lost.
The occurrence of such a problem is also prevented by the holding by the.

The portions where the holding pins 68 and 69 were located in the cavity 66 at the time of molding will remain as the prospective holes 13 in the body 2 after molding. Then, after molding, the contact 3,
4 can be checked.

The tip 33b of the terminal piece 33 of the contact 4
Is molded so as to be positioned in surface contact with the abutment surface 12 of the body 2. Therefore, at the end of molding, the tip portion 33b is in a state of sticking to the abutment surface 12, but the lamp body 1 is incorporated into the vanity mirror 44 and the terminal is once actuated by the action projection 52 of the cover 51. When the terminal piece 33 is bent via the piece 23, the tip 33 b of the terminal piece 33 is peeled off from the abutment surface 12 at this time.

When the injection into the cavity 66 is completed and the mold release is performed, the holding pieces 2 of the base holders 22 and 36 are removed.
Since the distance between the distal ends of the base pieces 25 and 40 and the distance between the distal ends of the holding pieces 41 and 41 are smaller than the vertical width of the base portions 25 and 40,
The release can be performed smoothly without using a slide core. That is, if escape recesses 70, 70 (only one of them is shown in FIG. 8) in which the die holders 22, 36 are located are formed in the other die 65, the holding pieces 26 of the die holders 22, 36, 26 and 41, 41 can escape from the escape recesses 70, 70 without being caught on the inner surfaces of the escape recesses 70, 70.

In the base holders 22 and 36,
The base portions 25, 4 of the holding pieces 26, 26, 41, 41
Rising portions 26 ', 26', 40 ', 40' from 0
Is formed not in a right angle but in a so-called curved R-shape, so that moldability is improved. That is, this part 2
If 5 ', 25', 40 ', 40' are at right angles,
Cracks are likely to occur in these parts due to operations such as injection molding and attachment / detachment of the light bulb. However, by forming these parts in an R-shape, cracks can be avoided and moldability can be improved.

After the body 2 is formed, the punched holes 8, 8,... Are formed by punching to form the lamp body 1. By the formation of these punched holes 8, 8,..., The bridges 59, 59,... Connecting the contacts 3, 4, 5 are cut at the locations of the punched holes 8, 8,. Each of the contacts 3, 4, 5 is electrically independent.

In the above-described lamp body for vanity mirror and the method of manufacturing the same, the contacts 3, 4, and 5 incorporated in the body body 2 are integrally formed, and are integrally formed with the body body 2 by insert molding. Since it is incorporated, the assembling accuracy of each of the contacts 3, 4, and 5 to the body body 2 is improved, and unnecessary portions of each of the contacts 3, 4, and 5 are covered with the resin of the body body 2,
The risk of shorts is reduced. In addition, the labor for assembly is saved, and the assembly cost is reduced.

[0083]

As apparent from the above description,
The present inventionManufacturing method of lamp body for vanity mirror
IsThe first is to bridge multiple types of contacts
Contact set integrated through the body for molding the body
Both molds inserted into the mold and clamped
2 which are adjacent in close proximity by the holding pin projected from
While holding down one contact and positioning it,
Inject resin for body body into mold for body molding and synthesize
Resin body and contact set are integrated
And mold the lamp body intermediate
Expected that adjacent parts are exposed in the proximity of contacts
After forming a hole in the body body, cut the bridge
The above contacts are electrically independent, and
Manufacturing a lamp body for a mirror;
Bend the end or edge of the contact
Multiple types of contacts with embedded pieces are passed through the bridge
The integrated contact set is used to mold the body
Insert into the mold and insert the body into the mold for molding the body.
Inject the resin for the main body and
Lamp body intermediate with integrated contact set
After molding, the bridge is cut and the
Lamps for vanity mirrors
The third feature is that a plurality of types are manufactured.
Contact that integrates various types of contacts via a bridge
Insert the toss into the body body mold
Inject the body body resin into the body body mold
The body of the synthetic resin and the contact set
In addition to molding the lamp body intermediate
Part of the resin for the body
Pressing part that presses the part from the surface side
After being formed integrally from the
Number of contacts electrically isolated, vanity mirror
The fourth one is characterized by manufacturing a lamp body for
Integrates multiple types of contacts through bridges
Insert the contact set into the body body molding die.
Prior to injecting the resin into the body molding die
At least one type by pressing pin through one mold
Of the body to the other mold
Inject resin for body body into molding die
Body Laminated body and contact set
After molding the pump body intermediate, cut the bridge
The contacts are electrically independent of each other
Of lamp bodies for mirrorsIt is characterized by the following.

The lamp body for a vanity mirror of the present invention
Lee , first, bridges multiple types of contacts
Molding of a contact set integrated via
Multiple punching on synthetic resin body body
A hole is formed and the bridge is cut at the punched hole.
And the above contacts are electrically independent.
With a cap holder to hold the bulb cap
Embedded piece formed by bending the end or edge of the object
Is embedded in the body of the body.
The object is integrated with multiple types of contacts via a bridge
Integrated contact set by insert molding
Multiple punched holes are formed in the synthetic resin body
The bridge is cut in the punched hole, and the
The number of contacts are electrically independent and the body book
A prospective hole is formed in the body, and two contacts are formed from the prospective hole.
The adjacent part is exposed in the proximity state of
And the third one is to bridge multiple types of contacts
Contact set integrated through insert molding
Multiple punched holes in a more integrated synthetic resin body
Is formed, and the bridge is cut at the punched hole.
And the plurality of contacts are electrically independent,
Contact with base holder to hold bulb base
The holding part that contacts a part of the surface side of the
The fourth feature is that a plurality of types of cores are formed.
Contact set that integrates contacts through a bridge
Body made of synthetic resin with integrated
A plurality of punched holes are formed in the main body, and
The bridge is cut and the contacts are electrically connected.
Two of the contacts inserted and independent of the
Some of the parts protrude out of the body and become terminal strips.
An open / close contact of the switch unit is constituted by the terminal pieces.
The connection part connected to the contact main part of the terminal strip
It is embedded in the body and has a bent part at the connection.
It is characterized in that the distance between the terminal pieces is adjusted .

Therefore, the lamp for a vanity mirror of the present invention
In the day manufacturing method, multiple types of contacts are
Ridge integrated contact set for body body
Insert the body into the mold and mold the body
Form the lamp body intermediate and then punch the bridge
And each contact is electrically independent and a vanity mirror
For the production of lamp bodies for
Can be used to manufacture lamp bodies for vanity mirrors
Cost can be reduced, and
The assembly accuracy between tacts is improved.

The lamp body for a vanity mirror of the present invention
B), there are several types of contacts
Body formed by insert molding of the body formed
Since it is molded integrally with the
Saves time and effort by incorporating each
And cost can be reduced. In addition, each contour
Components are assembled by insert molding,
The assembly accuracy between tacts is improved, and the contact
Unnecessary parts are covered with resin,
No danger.

It should be noted that the specific shapes, structures, methods, and the like shown in the above-described embodiments are merely examples of the embodiment of the present invention. The scope should not be construed as limiting.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a lamp body for a vanity mirror according to the present invention, which is partially cut away to show a state incorporated in a vanity mirror attached to a sun visor.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view.

FIG. 5 is a front view.

FIG. 6 is a rear view.

FIG. 7 is an enlarged sectional view taken along line VII-VII of FIG.

FIG. 8 is an enlarged sectional view taken along line VIII-VIII in FIG.

FIG. 9 is an enlarged sectional view taken along line IX-IX of FIG.

FIG. 10 is an enlarged sectional view taken along line XX of FIG. 5;

FIG. 11 is an enlarged sectional view taken along line XI-XI in FIG. 5;

FIG. 12 is an enlarged perspective view of a main part.

FIG. 13 is a view schematically showing a method of manufacturing a lamp body for a vanity mirror according to the present invention, together with FIGS. 14 to 17, which is a perspective view showing a material for manufacturing a contact set.

14 is a perspective view showing an original contact set formed by stamping out the material of FIG.

FIG. 15 is a perspective view showing a contact set formed by bending an original contact set.

FIG. 16 is a front view showing a contact set.

FIG. 17 is a perspective view showing a lamp body intermediate formed by inserting a contact set.

18 shows an example of a conventional vanity mirror lamp body together with FIG. 19, and FIG. 18 is a perspective view of a main part.

FIG. 19 is an exploded perspective view.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 lamp body for vanity mirror 2 body 3, 4, 5 contact 8 punching hole 13 see-through hole 16 holding part 22 base holder 23 terminal piece 24 connecting part 25a embedded piece 26 clamping piece 30 bent part (open / close contact of switch part) 33 Terminal piece 35a Embedded piece 36 Cap holder 41 Holding piece 48 Cap 49 Lamp (bulb) 58 Contact set 59 Bridge 62 Press pin 63 One mold 65 The other mold 68, 69 Press pin 70 Escape recess

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-6246 (JP, A) JP-A-4-49017 (JP, A) JP-A-4-19114 (JP, A) JP-A-63-1988 31817 (JP, A) JP-A-63-41234 (JP, A) JP-A-2-192627 (JP, A) JP-A-59-201324 (JP, A) JP-A-58-218714 (JP, A) JP-A-1-232621 (JP, A) JP-A-2-22520 (JP, U) U.S. Pat. No. 4,783,532 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60Q 3/02 B29C 45/14 B29L 31:30

Claims (8)

(57) [Claims] 1. A contact set in which a plurality of types of contacts are integrated via a bridge is inserted into a body body molding mold, and the contact set is inserted from both molds.
Two proximately adjacent two
While positioning the pressing contact, together with the body main mold in the by injecting a resin for body main body, to mold the lamp body intermediate the body main body and the contact set of synthetic resin are integrated , The two contours
The expected hole where the adjacent part is exposed
A method of manufacturing a lamp body for a vanity mirror , comprising forming a lamp body for a vanity mirror by forming the body and then cutting the bridge to electrically isolate the plurality of contacts. 2. An end or edge of a contact is bent.
Bridge multiple types of contacts with embedded pieces
The body of the contact set integrated through the body
And insert it into the body body molding mold.
Inject resin for body body, body body made of synthetic resin
Lamp body middle with integrated contact set
After forming the body, the bridge is cut and the plurality of cores are cut.
Electrically separate contacts for vanity mirror run
A method of manufacturing a lamp body for a vanity mirror, comprising manufacturing a body. 3. A plurality of types of contacts are connected via a bridge.
And integrated contact set to mold the body
Into the body body molding die.
Inject the resin for the body and connect it to the body made of synthetic resin.
Tact set and lamp body intermediate
And a part of the resin for the body
Squeeze around part of the surface side and press the part from the surface side
After the holding part is formed integrally from the body,
To make the contacts electrically independent.
Specializing in the manufacture of lamp bodies for vanity mirrors.
A method for manufacturing a lamp body for a vanity mirror. 4. A plurality of types of contacts are connected via a bridge.
And integrated contact set to mold the body
Insert resin into the body body molding die
Pressing pin through one mold before pressing
Press one type of contact against the other mold and
Inject the body body resin into the body body mold
The body of the synthetic resin and the contact set
After molding the integrated lamp body intermediate,
The contacts to make them electrically independent.
To manufacture a lamp body for a vanity mirror.
A method for manufacturing a lamp body for a vanity mirror. 5. A plurality of types of contacts are connected via a bridge.
Integrated contact set by insert molding
Multiple punched holes are formed in the integrated plastic body
And the bridge is cut at the punched hole.
The contacts are electrically independent and the bulb
Of contact with base holder to hold base
The embedded piece formed by bending the part or edge
A vanity mirror that is embedded in the body
For lamp body. 6. A plurality of types of contacts are connected via a bridge.
Integrated contact set by insert molding
Multiple punched holes are formed in the integrated plastic body
And the bridge is cut at the punched hole.
The contacts are electrically independent and the body
A prospect hole is formed in the main body, and two contours are formed from the prospect hole.
A lamp body for a vanity mirror, characterized in that an adjacent portion is exposed in the vicinity of the object. 7. A plurality of types of contacts are connected via a bridge.
Integrated contact set by insert molding
Multiple punched holes are formed in the integrated plastic body
And the bridge is cut at the punched hole.
The contacts are electrically independent and the bulb
One of the contacts with a base holder that holds the base
Pressing part in contact with the front side of the part is formed integrally from the body
A lamp body for a vanity mirror. 8. A plurality of types of contacts are connected via a bridge.
Integrated contact set by insert molding
Multiple punched holes are formed in the integrated plastic body
And the bridge is cut at the punched hole.
The contacts are electrically independent and can be inserted
Some of the two contacts are the body
It is projected to the outside to form a terminal piece, and the terminal piece is
The main contact part of one of the terminal strips
When the connecting part connected to the body is buried in the body
In both cases, a bent portion is formed in the connection portion, and the interval between the terminal pieces is reduced.
Vanity mirror run characterized by being adjusted
Peboday .