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Патент USA US2106144

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Jan. 18, 1938.
B s_ FLQR'ADAY
DOME LIGHT
ASSEMBLY 1
Filed Aug. 8, 1935
‘
2,106,144
.
Patented Jan. 18, 1938
2,106,144 I
UNITED STATES PATENT OFFICE
2,10s,144_ '
DOME LIGHT ASSEMBLY
Burton S. Floraday, Toledo, Ohio, assignor to
Dura. Company, Toledo, Ohio, a corporation of
Ohio
4
Application August 8, 1935, Serial No. 35,354
2 Claims.
(Cl. 240-435)
This invention relates to vehicle lamps, but
more particularly to dome light assemblies for
vehicles, such as automobiles, and an object is to
produce a new and improved structure of this
5 character which is inexpensive to manufacture,
easy to assemble and has the new and improved
features of construction and arrangement herein
after described.
The embodiments of the invention are shown by
10 way of illustration in the accompanying draw
ing, in which:
.
Figure 1 is a top plan view of a dome-light as
sembly;
Figure 2 is a sectional elevation on the line 2—2
15 of Figure 1;
‘
Figure 3 is an elevation partly in section of an
alternate form in which the rim of the base or
housing forms substantially an extension of the
lens;
20
Figure 4 is a sectional elevation of another
form in which the base is of molded plastic insu
lating material;
Figure 5 is a fragmentary plan view of an as
sembly in which the switch forms a part of the‘
25 assembly, the switch lever projecting through an
opening in the outer rim; and
Figure 6 is a fragmentary sectional view on the
line 6—6 of Figure 5.
In the form of the invention shown in Figs. 1
3° and 2, the dome light assembly consists of a base
or housing Ill, which is preferably a sheet metal
stamping and is cup-shaped to receive a bracket
consisting of a base I l, which lies ?at against the
rear wall of the housing to which it is secured by
35 a rivet l2, and a socket portion l3 integral with
the base I I and extending outwardly therefrom at
an inclined angle.
A bulb I4 is adapted to be
mounted in the socket portion l3 to be positioned
at an acute angle with respect to the rear wall
40 of the housing. A spring contact plate I5 is
adapted to engage the rear end of the lamp and is
held to a side wall of the housing by a post It,
insulating washers I‘! and I8 insulating this post
from the adjacent parts. It will be understood
45 that post I6 provides a live connection for the
lamp [4, the ground connection l9 likewise en
gaging the side wall of the housing and being
connected in the usual manner to the vehicle
frame.
50
Extending laterally from the side walls of the
housing It] is a ?ange 20 which terminates in
an outwardly extending ?ange 2| providing the
open mouth for the housing. Covering the face
or front portion of the housing is a lens 22 of
55 translucent material, but preferably is of molded
plastic material, such as Plaskon. The body
portion of the lens bows outwardly, as indicated
in Fig. 2, so that the lamp bulb I4 is positioned
closely to the under side thereof in such man
ner that the entire lens portion is illuminated and 5
eliminating any shadows or dark spots. Integral
with the lens and projecting inwardly therefrom
is an annular ?ange 23, which is adapted to ?t
over the outside of the outwardly projecting
?ange 2| of the housing. The ?ange 23 is rela- l0
tively thin and since the molded material, such as
Plaskon, has a certain amount of resiliency, the
lens is securely held in place due to the frictional
engagement between the ?anges 2i and 23, fric
tion being relied upon solely to retain these parts 15
in assembled relation. To provide a ?nished ap
pearance for the assembly, a rim 24 provides a
continuation of the lens portion 22 and inclines
outwardly and inwardly from the ?ange portion
23, the end portion of the rim curving inwardly 20
in this instance.
An important advantage of the dome light as
sembly above described resides in the fact that
the entire lens portion is illuminated by the lamp
l4 and the lens can be attached to the base or 25
housing Ill without the use of screws, bayonet
joints, clamping rings or other devices common
ly used for these purposes. In this manner, ap
plicant is enabled more readily to mount the lens
and this can be effected at a lower cost.
By 30
mounting the lamp bulb M in the manner above
described the housing or base l0 requires a less
amount of metal, since it is considerably shallower
than similar housings, so that the cost is like
wise reduced in this manner.
In order to enhance the attractive appearance
of the assembly, apertures 25 may be formed in
the housing ?ange 2| and apertures 26 in the
lens ?ange 23 in registry with each other to enable
some of the light rays to pass therethrough and
illuminate portions of the rim 24. The number
and arrangement of these apertures may be va
ried as desired, depending on the desired effect.
In the embodiment shown in Fig. 3, the lens
22a is provided with a similar inwardly extending
?ange 23a engaging on the inside of a housing
?ange 21a. Formed integrally with the lens 22a
is a rim or ?ange portion 21, which projects
slightly beyond the ?ange 2|a and over a rim 28.
The rim 28 is formed integrally with the housing
and extends laterally from the ?ange 2P1. The
rim 2'! not only covers the connection between
the ?anges 23a and 2Ia, but also enables a tool
to be inserted between the rim 28 and the rim or
?ange 21 to pry the lens away from the housing.
35
40
50
55
2
2,106,144
The frictional engagement between these parts
that the lens 22° is properly mounted on the
is such that the lens cannot be removed readily
and prying action is necessary for this purpose.
In the form shown in Fig. 4, the base or hous
ing ll]b is of molded insulating material, such
housing or base, a groove 3| is formed in the
?ange 2|c to receive a projection 32 formed in
as Plaskon, which eliminates the necessity of us
It is to be understood that numerous changes
in details of construction, arrangement and choice
ing insulating washers between the live post I6b
and the ground connection lab, the latter serving
of materials may be effected without departing
from the spirit of the invention, specially as de
to secure the base llb of the lamp bracket to the
It will also be noted that the rear wall
of the housing l 0‘) is inclined thereby to provide a
more ef?cient re?ecting surface for the light rays
?ned in the appended claims.
10 housing.
and also. to eiTect a substantial saving in material.
In this instance, the lens 22b, which is also of
molded plastic material, is similar to that shown
and described in connection with Figure 2, al
though the openings in the housing and lens
?anges are not shown. These may or may not be
used as desired. The housing Illb has a ?ange 2 I b
20 which engages the ?ange 23b of the lens, the lens
having a rim 241’, which parts are similar to
those shown in Fig. 2, and wherein it is to be
noted that the rim 24*) forms a substantial con
tinuation of the front face of the lens.
25
the lens ?ange 23°.
It will be apparent that the structures above
What I claim is:
10
1. A dome light assembly comprising a hous
ing having an open outer end provided with an
outwardly extending ?ange, a rim surrounding
said ?ange, a lens of molded plastic material
having an inwardly extending ?ange frictionally
engaging said ?rst ?ange, and a relatively small
rim on said lens slightly overlapping said ?rst
rim and enabling insertion of a tool to enable said
lens to- be pried off.
2. A light assembly comprising a housing ele
ment and a lens element, the housing element
having a smooth forwardly extending ?ange, the
lens element being of moulded plastic material
and having an inwardly extending smooth re
silient ?ange frictionally engaging the ?ange of '
described do not employ a switch formed as a
the housing so as to form the sole means of con
part of the housing, such structures being con
nected with a pillar or other part of the vehicle.
nection between said elements, and one of said
In the form shown on Figs. 5 and 6 an elongate
30 slot 29 is provided in the rim 24° through which
extends a switch lever 30.
In order to insure
elements having an integral laterally extending
rim forming a substantial continuation of the
front face of- the lens element.
BURTON S. FLORADAY.
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