DE2736219A1 - LATCH FOR RELEASABLE CONNECTION OF HOUSING PARTS OF LUMINAIRES - Google Patents

Abstract

Springs bent in a hook shape, the manufacture and assembly of which is relatively expensive, have hitherto mainly been used for the detachable mounting of a shield or some other cover in a lamp housing; disruptive through holes in the outer housing part are generally also necessary for the mounting of such springs. By contrast, in the invention, the closure (1) is a single-piece plastic part with a U-shaped support (15), the legs (14) of which are each respectively connected at their free end to the one housing part (3). Between the legs (14) and parallel to them a spring arm (11) is arranged with shoulder (12) running transversely to its longitudinal axis, which arm has a handle (13) on its free end. By means of this, the shoulder (12) can be bent so far to the side that the two housing parts (2 and 3) can be detached. <IMAGE>

Description

Closure for the detachable connection of housing parts of lights

The invention relates to a closure for releasably connecting Housing parts of lights, with a spring arm, on the one hand a hook-shaped Shoulder as an abutment for one housing part and the other connection means has for fixed connection with another housing part.

Has such closures for holding a grid in a lamp has been designed as hook-shaped springs that are connected to the housing became. For this purpose, however, there are recesses in the housing, which are practical can only be accepted with recessed ceiling lights. Apart from that, are such springs are relatively expensive to manufacture and assemble.

The invention is therefore based on the object of specifying a closure, which is easy to manufacture and assemble and with no breakthroughs in the outer housing part are required.

The inventive solution to this problem is characterized by that the spring arm is arranged between the two legs of a U-shaped support is, which each have a connecting means at their end, wherein the spring arm encloses an acute angle with the legs, and that the closure is a one-piece Plastic part is.

Advantageous refinements of the invention are given in the sub-references marked.

An embodiment of the invention is explained with reference to the figures; FIG. 1 shows a plan view of a closure in the direction of arrow I. FIG In Figure 2, Figure 2 is a view in the direction of the arrow II in Figure 1, Figure 3 a section along line III-III in Figure 1, Figure 4 is a side view in the direction of the arrow IV in Figure 1, and Figure 5 shows a section of a lamp housing with a lock in side view.

The closure 1 consists of an essentially U-shaped TrE-ger 15 with the two legs 14 and one arranged between these legs Spring arm 11. The latter begins at the connecting piece between the two legs 14 and forms with them an acute angle OC of about 150. The other end of the The spring arm 11 has a shoulder running approximately transversely to the plane of the legs 14 12, which - as FIG. 5 shows - serves as an abutment for the second housing part 2. This shoulder 12 is followed by a handle 13 on the other side of the U-shaped support 1 is and with the plane of the legs 14 an angle # of includes about 400.

At the ends of the legs 14 are for connecting the closure 1 with a housing part - in Figure 5 it is the grid 3 - tongues known per se intended for "buttoning", each around an almost continuous recess 18 are arranged in a circle and are conical on the outside. On the other Side of this recess 18 a dowel pin 17 is formed over it, which with the leg 14 is connected only via an extremely small material cross-section so that the dowel pin can be loosened during assembly by applying slight pressure and in the recess 18 can be pressed in, which then causes a spring back of the spring tongues 16 and thus a loosening of the lock from the associated housing part is impossible. Figure 5 shows the dowel pin 17 in this position.

When a grid 3 is pivoted into a housing 2, it initially runs the spring arm 11 against the housing edge 21 (Figure 5) and is thereby in the direction of the arrow shown pressed until the grid is inserted so far that the Shoulder 12 springs back behind the housing edge 21 and thus holds the grid 3 is.

To open and remove the grid 3, the handle 13 is used to do this, press in the direction of the arrow.

3 claims 5 figures Blank page

Claims (3)

Claims closure for the detachable connection of housing parts of lights, with a spring arm, which on the one hand has a hook-shaped shoulder as an abutment for the one housing part and the other connection means for fixed connection having with another housing part, thereby g e k e n n n z e i c h -n e t that the spring arm (11) between the two legs (14) of a U-shaped support (15) is arranged, each of which has a connecting means (16) at its end, the spring arm (11) enclosing an acute angle (oC) with the legs (14), and that the closure (1) is a one-piece plastic part. 2. Closure according to claim 1, in which the connecting means per se named, arranged in a circle around a continuous recess, conical on the outside running spring tongues are used for "buttoning", each marked by a dowel pin (17), on the side of the legs (14) facing away from the spring tongues (16) the end 3 of the recess (18) with the leg with such a small material cross-section is connected that it can be pressed into the recess (18). 3. Closure according to claim 1 or 2, characterized in that a handle (13) is formed at the end of the hook-shaped shoulder (12), which with the Legs (14) forms an acute angle (), this angle (/ 3)) and the Angle (oc) between spring arm (11) and leg (14) on different sides of the carrier (15).