DE6603610U - INDEPENDENT WIRED CONNECTOR FOR ELECTRIC DEVICES - Google Patents

Description

Franz Stadler, Augsburg, Prinzregentenstrasse

[Wire reel for electrical appliances J

The innovation relates to stranded reels for electrical devices, whose circumferential teeth are in a housing mounted reel drum by spring force in the sense of winding the tangentially emerging from the housing Strand is influenced and by a radial side of the reel drum mounted in the housing, with the drum circumferential toothing cooperating, releasable pawl can be held against the spring force in any position.

Such stranded reels are for example by

U.S. Patent 2,306,611 became known. The circumference ver = The reel drum is toothed in these known stranded reels arranged on the front side of the stranded drum and the spring-loaded and push-button-operated cooperating with it The pawl is mounted in the reel housing so that it can be moved parallel to the drum axis. In addition, the pawl is involved a downwardly extendable, spring-loaded sensor, which causes the pawl to be released and thereby the Strand is wound up as soon as the reel housing is lifted off the ground. This arrangement, which is very useful in itself, er = However, it requires a certain construction effort and space requirement within the reel housing and consequently increases The production costs of such stranded reels are also not inconsiderable in comparison to stranded reels without ratchet pawls. It is also not always desirable. first a push button or having to lift the reel housing from the ground in order to wind up the stranded wire.

The aim of the innovation is to solve the problem in the case of stranded reels of the general type set out at the beginning to keep manufacturing costs as low as possible and to enable the pawl to be actuated by simply pulling the stranded wire. This object is achieved according to the innovation in that the circumferential toothing of the reel drum is designed as radial toothing and that the locking mechanism interacting with it = pawl pivotable about an axis parallel to the drum axle and

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is provided with an axially perpendicular opening through which the strand is passed through.

According to a further feature of the innovation, the reel housing can be designed as a base for an electrical device be.

The innovation is now based on a preferred with reference to the attached drawing in detail Spatial shape described, for example, in which

Fig. 1 is a central axial section through a

Strand reel according to the innovation shows and

2 shows a section along the plane H = II

in Fig. 1, seen in the direction of the arrow, reproduces.

The self = active slip ringless stranded wire reel for electrical devices, which is shown schematically in the drawing for example by means of a three-wire flat stranded wire 1 and a Schuko plug (not shown) on sockets can be connected, has a housing 2 made of insulating material, which for reasons of easier assembly =

construction along an axially perpendicular parting line 3 divided into a lower housing half 2a and an upper housing half 2b

can be. The end wall k of the lower housing half 2a can be widened beyond the housing diameter in the manner indicated at 4a, so that this end wall can serve as a stand = surface of the housing 2, which in turn serves as a base for an electrical device connected to it. The dumbbell wall 5 of the upper housing half 2b is pulled upwards over the end wall 6 of this upper housing half in the form of a protruding edge 5a, for example circular in plan, so that the associated electrical device is easily adapted to the upper housing half 2b and for example =

j can be screwed onto eyes 6a of the end wall 6.

j is on one of the two housing end walls Q or 6

f a socket-shaped pivot 7 is attached. That is inside this

ί The sleeve-shaped pivot pin fixed to the housing stands over an i

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Central bore 8 of the housing end wall 6 with the housing exterior;

in connection. I.

On the bush-shaped pivot 7 fixed to the housing is a rasp drum 9 made of insulating material stored, consisting essentially of two drum end walls 10a and 10b as well as a drum shell wall 11 connecting these two end walls to one another. The distance

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between the two drum end walls 10a and 10b is so large that the three-core flat strand 1 comfortably between these two drum front walls has space.

The inside of the drum is divided into individual chambers by dividing walls 12a, 12b, etc., located in planes perpendicular to the axis divided, in which coil springs 13a, 13b, 13c are housed, the inner ends of the pivot pin 7 and the outer Ends are attached to the reel drum 9. The springs are all wound in the same direction of rotation so that they strive have to rotate the reel drum 9 in a direction of rotation indicated by an arrow A in FIG. 2, in which the flat strand 1 on the outer circumference of the drum jacket wall spirally between the two flange-shaped drum = Winding end walls 10a and 10b from the inside to the outside, as can be seen from the drawing. When peeling off of the flat strand 1 from the drum 9 are thus with simultaneous rotation of the drum against the direction of arrow A. the springs 13a, 13b and 13c are tensioned and when the strand tension is released, these springs rewind the strand the drum 9 until the attached to the outer strand end, not shown in the drawing stranded plug on a Slot 14 of the reel housing 2 strikes through which the stranded wire is led out of the housing.

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The pivot 7 has a longitudinal radial slot 15 through which the ends of the wires 16a, 16b and 16c of the three = veined device braid 16 and with the radially inner ends of the coil springs 13a, 13b and 13c are connected.

The jacket wall 11 of the reel drum 9 is provided with an axially parallel longitudinal radial slot 17 through which the ends of the veins la, Ib and Ic of the drum-side end the pigtail passed through and with the respective radially outer ends of the coil springs 13a, 13b and 13c are electrically conductively connected.

According to the innovation, the sizes are one or both Drum end walls 10a, 10b provided in a manner known per se with ratchet teeth 18a and 18b, respectively, with which in on a pawl 20 mounted in the housing 2 on an axially parallel pivot 19 cooperates in a known manner. These According to the innovation, the pawl is provided with an axially perpendicular feed-through opening 21 for the device cord 1 as shown in the drawing. This innovation = according to the embodiment of the pawl 20 has the advantage that the pawl 20, which is expediently urged into the engaged position by a loading spring 22, by mere travel = pulling the end emerging from the housing section 14

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the connection strand 1 can be released in the direction of arrow B.

The three-wire device strand 16 is, as from Pig. I of the drawing can be seen through the central hole 8 of the Housing end wall 6 led out of the housing and can as a result in the most convenient manner on the associated connected to an electrical device.

The strand reel in accordance with the innovation is not only suitable for three-core flake strands, but is also suitable for in the same way also for two-core flat strands or four- and multi-core flat strands. It changes in this case only the distance between the drum end walls 10a and 10b. With a corresponding redesign (for example Enlargement of the drum length) is suitable according to the innovation Strand reel also for winding two-core and multi-core round strands. In this case, there is no problem Helical winding of the strand to be wound is possible. Instead of coil springs 13a, 13b and 13c can if the axial drum length is sufficiently large, coil springs can also be used, for example.

The automatic stranded reel according to the innovation offers

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opposite the outset & _s known Litzenhaepeln arge laid the technical progress that he is not only in manufacturing cheaper and more versatile due to its simple design and material-saving construction, but that it also is less susceptible to interference than the known devices considerably and restored in case of repair with less effort The strand reels equipped with the new retaining pawl arrangement are also easier to use than the known ratchet-wheel stranded reels The special shape of the new hasp housing makes it possible to easily attach the same to all kinds of electrical devices or to use it as a base for such devices to use. The simple structure of the reel housing according to the invention facilitates its manufacture from plastic in the injection molding process.

The automatic pigtail reel according to the innovation is suitable for all types of electrical devices, but preferably For smaller electrical appliances such as table lamps, floor lamps, radio equipment, vacuum cleaners, kitchen machines, tea or coffee machines or the like.

Claims (4)

Visibility requirements 1. Litz reel for electrical devices, the one provided with a circumferential grooving, stored in a housing Reel drum influenced by spring force in the sense of winding the strand emerging tangentially from the housing is and by a radial side of the reel drum in the housing together with the drum circumferential toothing = acting, releasable pawl can be held against the spring force in any position, characterized in that that the circumferential toothing (18a, 18b) of the reel drum (9) is designed as radial toothing and that with it interacting pawl (20) pivotable about an axis (19) parallel to the drum axis (7) and with an axis perpendicular Opening (21) is provided through which the stranded wire (1) is passed is. 2. Strand reel according to claim 1, characterized in that the pawl (20) is spring-loaded in a manner known per se (22) is. . 3. Strand reel according to claim 1 or 2, characterized = shows that the drum mn serrations (18a, l8b) as 603610 I> IUI sawtooth-shaped Klin Denver serration is designed. 4. Strand reel according to one of claims 1 to 3 characterized in that the reel housing (2) is designed for an electrical device , ... ih. <,. , -i '.. ■ · «· ■■ · ■ - ■ - Aiii - 10 - 5603610