DE2938247C2 - Lamp holder for fluorescent tubes - Google Patents

Description

The invention relates to a lamp socket for fluorescent tubes with frontal contact pins, consisting of a socket body with a fastening device and corresponding to the diameter of the Fluorescent tube with rounded end face, with an end face slot for radial insertion of the Contact pins and a rotating part held in an axially open cavity of the Fasrungskörpers, the one for Housing rear wall arranged in parallel bottom and two approximately semicircular forming a transverse slot Has arms and can be rotated in steps to make contact or to change fluorescent tubes

Usually two of these sockets are fixed to the frame, with the open slots of their rotating parts to each other and their spacing is adapted to the length of the fluorescent tube

To replace defective fluorescent tubes, they must be rotated around their longitudinal axis together with the rotating parts be rotated until the slots of the rotating parts are in line with the corresponding front housing slots. The tube can then be removed, a new ones are inserted and fixed and contacted by twisting. In particular in the case of thin fluorescent tubes, however, turning them is somewhat difficult because there is no handle for turning them is present, but only the smooth, slender tubular body can and must be touched.

Especially with sunk-in fluorescent tubes or with tubes embedded in cladding Tubes are very difficult to handle when changing tubes.

From DE-AS 11 05 058 and DE-GM 17 55 893 lamp sockets for fluorescent tubes are known which can be locked in the contact position and their Lock can be released by operating a handle. However, this is also a cumbersome one Handling associated with an extremely complex construction is disadvantageous.

The invention is based on the task of making the replacement of the fluorescent tube simpler and easier To make it safer, with a manufacturing technology favorable and simple solution is sought.

The solution to this problem is characterized in that the rear wall of the housing is coaxial with the rotating part is perforated and that at least one guided through the hole pin is attached to the rotating part, which with a arranged parallel to the rear wall of the housing, this front protruding handle is firmly connected.

As a result of this measure, the tube, including the turned parts, can now be turned without the tube to touch, namely by merely pivoting the handles of the rotating parts.

Since only a 90 ° rotation is necessary to remove or lock the fluorescent tube, the handle is accessible through the remaining light slot even when the tube is arranged in a clad.

To create a particularly stable arrangement, it is proposed that the handle consist of a flat, arranged parallel to the rear wall of the housing

Disc with a collar that extends over the rounded end face of the housing and one in the middle the latter is attached handle bar, the Handle can be pivoted through 90 ° that in one end position of the handle the slot of the rotating part s is aligned with the housing slot and in the slot area on the front side is free of parts of the handle in which other end position of the slot of the rotating part is perpendicular to the housing slot

By arranging a disk with collar ι ο, the handle is supported on actuation on Housing without the pin between disc and rotating part is stressed in bending.

Inserting and removing the fluorescent tube remains unhindered

For the purpose of further stabilization, it is intended that Rotary part and handle are positively connected to one another by two pins which are on a common Circular ring are arranged and their distance from each other plus their diameter is smaller than is the diameter of the perforation in the rear wall of the housing.

For the same purpose, it is proposed that a handle in the hole on the disc of the Housing rear wall matching, circular projection is attached, the thickness of which is at most equal to Wall thickness of the rear wall is

A production technology preferred training is seen in the fact that the lamp holder, the rotating part and the handle are injection-molded from plastic, the handle including disc, collar, projection and The pin is in one piece and the pin ends are inserted into corresponding holes in the rotating part and from there this are held positively.

It is further provided that the inner surface of the collar of the handle forms a quarter circle, the is adapted to the semicircle of the frame face.

It is also intended that the lamp socket is inserted sunk into a tubular casing, which contains a longitudinal slot for the light exit, which is about * o one and a half times as wide as the lamp socket.

A preferred embodiment is shown in the drawing and described in more detail below.

It shows

F i g. 1 shows a lamp socket in perspective as an exploded drawing;

F i g. 2 the assembled version from behind;

3 the same from the front in a panel used

The lamp socket for fluorescent tubes consists of a socket body 1 with a mounting flange la, a front approximately circular cavity Xb and an end slot Ic; which opens into the cavity Xb. Inside the body 1, the electrical contacts are arranged in the usual way

Furthermore, the socket consists of a rotating part 2, which cannot be lost, with a base 2a and two approximately semicircular arms 2b which leave a transverse slot free. In addition, the socket has a handle 3 with two pins 3a which are arranged on a circular projection 36 of a disk 3c arranged parallel to the socket body rear wall I rf with a collar 3c / overlapping the semicircular, rounded end face Xe.

The diameter of the projection 3b corresponds approximately to the diameter of a perforation provided in the rear wall Xd.

The pins 3a are inserted into corresponding holes 2c of the rotating part 2 and glued or glued to them welded.

The collar 3d of the handle is designed as a quarter circle and can thus be pivoted through 90 ° to the right or left in the assembled position.

A grip web 3e is formed in the center of the collar 3d. The width of the collar 3d next to the grip web 3e corresponds approximately to the distance between the slot Ic and the rear wall id.

In Fig. 3 shows the handle 3 in the two possible extreme positions.

In addition, the lamp socket is sunk there in a tubular, longitudinally slotted cladding 4 supported, wherein the width of the slot 4a is greater than the width of the lamp socket.

1 sheet of drawings

Claims (7)

Patent claims: 1.Lamp socket for fluorescent tubes with frontal contact pins, consisting of a socket body with fastening device and an end face rounded according to the diameter of the fluorescent tube, with a frontal slot for radial insertion of the contact pins and a rotating part held in an axially open cavity of the socket body, one parallel to the rear wall of the housing arranged base and two approximately semicircular arms forming a transverse slot and which can be rotated in steps for making contact or for changing the fluorescent tube, characterized in that the rear wall of the housing (Ia ^ coaxial to the rotating part (2) is perforated, and that the rotating part (2 ) at least one pin (3a) guided through the perforation is fastened, which is fixedly connected to a handle (3) which is arranged parallel to the rear wall of the housing (id) and protrudes from the front 2. Lamp socket according to claim 1, characterized in that the handle (3) consists of a flat, parallel to the housing rear wall (id) arranged disc (3c) with a rounded end face (Xe) of the housing (1) overlapping collar (3d) and a handle bar (3e) fastened in the middle of the latter, the handle (3) being pivotable by 90 ° so that in one end position of the handle the slot of the rotating part (2) is aligned with the housing slot (ic) and in the slot area the front side is free of parts of the handle (3), in the other end position the slot of the rotating part (2) runs perpendicular to the housing slot (FIG. 3). 3. Lamp socket according to claim 1 or 2, characterized in that the rotating part (2) and the handle (3) are positively connected to one another by two pins (3a) which are arranged on a common circular ring and their distance from one another plus their diameter smaller than the diameter of the perforation on the rear wall of the housing (legist. 4. Lamp socket according to one of claims 1 to 3, characterized in that on the disc (3c) of the handle (3), a circular in the hole of the housing rear wall (id) matching projection (3b) is mounted, whose thickness is at most equal to the wall thickness of the rear wall (id) way. 5. Lamp socket according to one of claims 1 to 4, characterized in that the lamp socket (1), the rotating part (2) and the handle (3) are injection-molded from plastic, the handle (3) including disc (3c), collar (3d), projection (3b) and The pin (3a) is in one piece and the pin ends are inserted into corresponding holes (2c) of the rotating part (2) and held there in a form-fitting manner. 6. Lamp socket according to one of claims 1 to 5, characterized in that the inner surface of the collar (3d) of the handle (3) forms a quarter circle which is adapted to the semicircle of the socket face (! ^. 7. Lamp socket according to one of claims 1 to 6, characterized in that it is inserted sunk into a tubular casing (4), which contains a longitudinal slot (Aa) for the light exit, which is about one and a half times as wide as the width of the lamp socket