JPS59209205A - Glove frame for illuminator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a globe frame constituting a globe of a lighting device.

Conventional configurations and their problems Conventionally, lighting fixtures primarily intended for insect repelling have been constructed in such a way that a globe is attached to a chassis that constitutes the lighting fixture body via a packing member, and the outer periphery of the globe is This objective is achieved by forming a groove on the edge of the glove frame provided in the glove frame, fitting a sponge-like packing member into this groove, and positioning the bent part formed on the periphery of the chassis in this packing member. Ta. However, this method requires work to fit the packing member into the groove, which is a complicated work, and it is difficult to fit the packing member uniformly along the groove. This required a troublesome process, such as the need to apply adhesive. In order to overcome these drawbacks, there is a technique disclosed in Japanese Patent Application Laid-Open No. 55-33754, in which the glove material and the packing material are simultaneously extruded and molded into one piece. , whereas the glove frame is made of synthetic resin,
Since the packing member is made of rubber, it has the disadvantage that the state of adhesion between the two is unsatisfactory and it is easy to peel off.

OBJECT OF THE INVENTION 3 Page 7 The present invention fundamentally solves the above-mentioned drawbacks, and the glove frame and the packing member are integrally formed by co-extrusion molding, thereby greatly facilitating assembly work, and the glove frame and the packing member are integrally formed. The purpose is to absolutely eliminate any flaking.

Structure of the Invention In order to achieve the above object, the present invention is made by co-extrusion molding so that the base is fixed to a glove frame made of a relatively hard synthetic resin, and is made of the same material as the clove frame and a plasticizer. A globe frame for a lighting device is characterized in that it includes a packing member made of a relatively soft synthetic resin with a relatively large blending ratio of.

Description of examples Next, embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a metal chassis, on the bottom of which a lamp 2... and other necessary electrical parts (not shown) are attached.

Reference numeral 3 denotes a glove, the main parts of which are a glove frame 4 and a transparent plate 5, and are attached to the lower surface of the chassis 1 by appropriate means. The glove frame 4 is manufactured by Patsukin JP-A-59-209205 (described later).
2) Although it is made of the same material as the component, the blending ratio of plasticizer is different, and the clove frame 4 has a relatively small blending ratio, so it is made of relatively hard synthetic resin (for example, hard vinyl chloride resin). be. 6 and 6' are packing members, the main part of which is hollow, contains a relatively large proportion of plasticizer, and is therefore made of relatively soft synthetic resin (for example, soft vinyl chloride resin). , the base is co-extruded so as to be fixed along the clove frame 4. Ribs 4b formed inwardly at right angles along the longitudinal direction of the main surface 4a of the glove frame 4 have a metal reinforcing plate 7 extending at right angles to the main surface 4a in the longitudinal direction.

Note that the tip of the rib 4b is a groove wall 4C formed upward.
A groove 8 is formed between the main surface portion 4fL and the upper portion thereof, and the packing member 6 whose base portion is fixed to the rib 4b is located within the groove 8. The packing member 6' has a receiver that projects inward from the lower end of the clove frame 4 and is fixed to the piece 4d.
The peripheral edge of the transparent plate 6 is connected to the piece 4 through the packing member 6'.
Uke is stopped at d. The tip of the peripheral edge of the light-transmitting plate 5 is in contact with the lower surface of a rib 4e that projects inward from the intermediate portion of the vane rope frame 4. It should be noted that if the peripheral edge of the transparent plate 5 is well-shaped so that the receiver can be fixed to the receiver piece 4d uniformly, the packing member 6' is not necessary. When molding the glove frame 4, the glove frame 4 is extruded from an extrusion molding machine (not shown), and then extruded from another extrusion molding machine (not shown) in an uncooled state after extrusion. The gasket members 6, 6' may be joined together with the gasket members 6, 6' that have been molded, and the gasket members 6, 6' may be fixed to the glove frame 4 and integrally molded using an integral molding machine (not shown). The metal reinforcing plate 7 may be placed inside the rib 4b when the glove frame 4 is extruded. Next, in order to assemble the glove frame 4 formed in this way, as shown in FIG. By forming the connecting portion 42L' remaining on the main surface portion 4a, the connecting portion 42L' may be bent and framed as shown in FIG. Note that the abutting surfaces of both ends of the clove frame 4 are joined by appropriate means such as adhesion or six-vane welding. After assembly, since the metal reinforcing plate 7 is located inside the rib 4b, it acts to effectively prevent the glove frame 4 from being bent in the longitudinal direction. and,
In some examples of the glove frame 4 with respect to the chassis 1, the bent portion 1a formed at the peripheral edge of the chassis 1 comes into contact with the packing member 6, and flexibly deforms the packing member 6 to achieve a good seal. It has a structure and has an insect repellent effect. In order to fix the light-transmitting plate 6 to the receiving piece 4d, at the same time as the assembly shown in FIG. Alternatively, if the transparent plate 5 is sufficiently flexible, the glove frame 4 may be
After assembly, the receiver may be inserted into the piece 4d so that the receiver is retained while bending the transparent plate 5.

According to the gist of the present invention described above, the glove frame and the packing member are basically made of the same synthetic resin, and the blending ratio of plasticizer is relatively larger in the packing member. Since it is made of a relatively soft material, it is possible to firmly fix the packing member to the glove frame by co-extrusion molding, and the glove frame and the packing part can be integrally molded. This greatly facilitates the assembly work, and has the remarkable effect of completely eliminating peeling between the glove frame and the packing member.

[Brief explanation of the drawing]

The drawings all show one embodiment of the present invention, and Fig. 1 is a perspective view of the lighting equipment, Fig. 2 is a longitudinal cross-sectional view thereof, Fig. 3 is a longitudinal cross-sectional view of the globe frame, and Fig. 4 is a perspective view of the lighting equipment. FIG. 5 is a plan view of the glove frame when it is assembled, and FIG. 6 is a perspective view of the glove frame with a portion of the inside thereof cut away. 3...Glove, 4...Glove frame,
41L... Main surface part, 4b... Rib, 4
2L'...Connecting portion, 6,6'...Packing member, 7...Metal reinforcing plate. Name of agent: Patent attorney Toshio Nakao and one other person'J
8 Kaisho 59-209205 (3) Fig. 3 2 δ Fig. 4 1 ' C 4α 4b 4 4e z' Fig. 5 Fig. 6

Claims (2)

[Claims] (1) The base is co-extruded so as to be fixed along a glove frame made of a relatively hard synthetic resin, and is made of the same material as the glove frame but is relatively soft with a relatively high proportion of plasticizer. A globe frame for lighting equipment characterized by having a packing member made of synthetic resin. (2) The globe frame for a lighting device according to claim 1, wherein the main part of the packing member has a hollow shape.