DE2736219C2 - Closure on a lamp housing with two detachable housing parts - Google Patents

Description

30th

The invention relates to "one" connection to one Luminaire housing with two detachable housing parts according to the preamble 'ies claim.

With such a closure, when one housing part is pivoted into the other, the spring arm of the lock is initially pushed away until a shoulder is behind an abutment of the other housing part snaps and leans on it with his shoulder. To release the two housing parts, the Federarrn has a handle with the help of which the shoulder can be pulled off the abutment.

In such, from DE-GM 71 30 032 known The luminaire housing consists of the spring arm of the lock made of spring steel and is over an inelastic Carrier connected to one housing part.

The manufacture of molded parts from spring steel is expensive because of the hardening required after molding; the invention is therefore based on the object of the aforementioned closure on a lamp housing to be improved so that it can be operated with less effort without impairing its functionality can be produced.

The inventive solution to this problem is in a closure of the type mentioned by the Characterized features specified in the characterizing part of the claim.

On the one hand, the use of plastic for the closure enables inexpensive mass production. A On the other hand, there is a large spring deflection with sufficient strength achieved in that the closure only with the ends of the legs of the U-shaped support the one housing part is connected: These legs practically form an extension of the spring arm and bs allow a greater spring deflection with the given strength and unchanged size of the closure.

An embodiment of the invention is explained with reference to the figures; it shows

F i g. 1 shows a plan view of a closure in the direction of arrow I in FIG. 2,

FIG. 2 is a view in the direction of arrow II in FIG Fig. 1.

P i g. 3 shows a section along line IH-III in FIG. 1,

F1 g. 4 is a side view in the direction of arrow IV in FIG Fig l. And

F i g. 5 shows a detail from a lamp housing with a closure in side view.

The closure 1 consists of an essentially U-shaped support 15 with the two legs 14 and the spring arm 11 arranged between these legs. The latter begins at the connecting piece between the two legs 14 and forms an acute angle α of about 15 ° with them . The other end of the spring arm 11 has a shoulder 12 which runs approximately transversely to the plane of the legs 14 and which, as in FIG. 5 shows - serves as an abutment for the second housing part 2, this shoulder 12 is followed by a handle 13 which lies on the other side of the U-shaped support 1 and forms an angle β of approximately 40 ° with the plane of the legs 14

At the ends of the legs 14 are for connection of the closure 1 with a housing part.l - in F i g. 5 it is the grid 3 - tongues known per se for "buttoning" provided, each by almost one 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 only over an extremely small material cross-section is connected, so that the dowel pin is during assembly loosen by light pressure and can be pressed into the recess 18, which then spring back the Spring tongues 16 and thus a release of the lock from the associated housing part is impossible. F i g. 5 shows the dowel pin 17 in this discussion.

When a grid 3 is pivoted into a housing 2, the spring arm 11 initially runs against the edge of the housing 21 (Fig. 5) and is thereby turned in the direction of the The arrow shown is printed until the grid is inserted so far that the shoulder 12 is behind the edge of the housing 21 springs back and thus the grid 3 is held.

To open and remove the grid 3, the handle 13 is used, which here is to be pressed in the direction of the arrow. ken is.

For this purpose 2 sheets of drawings

Claims (1)

Claim: Closure on a lamp housing with two detachable housing sleeves (2, 3), with a carrier (15) which has a free leg over which the carrier is connected to one housing part (3) and the one spring arm (11) angled relative to the leg ) carries at its free end a handle (13) and a shoulder (12) running transversely to the spring arm (H), which in the rest position when the housing is closed is supported against an edge (21) of the second housing part (2), wherein the spring arm (11) is connected to the first housing part (3) in such a position that it is deflected from the rest position when the lamp housing is closed by the edge (21) of the other housing part (2) until the shoulder (12) is behind this edge (21) snaps, thereby gekennzptehr.et. that the carrier (15) is U-shaped and its free leg (14) is double-legged that the spring arm (11) extends between these two legs (14) of the carrier (15) in the direction of ayf their free ends and an acute angle (A) includes these legs (14), and that the closure (1) is designed as a one-piece plastic part