Патент USA US2106144код для вставки
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.