DE6903063U - REEL BODY - Google Patents

Description

CONTACT BUILDING ELEMENTS
GMBH
Nuremberg
Gie «> eventraiie 3

Case: H.G. Hirbeth -10

Bobbin

Lie innovation refers to one made of injection molding or ■ Leave the existing bobbin free from a hollow core and two end flanges perpendicular to the spool axis. Such bobbins are used, for example, for relay coils in telecommunications and telephone systems, others Message transmission systems, as well as in control and regulating devices.

In the known cases, the hollow core is used to Acceptance of an iron core or one or more protective tubes. The hollow core can therefore as well as anyone End flange be shaped according to the intended use of the spool. For example, they are cylindrical Coil bobbins are known in which the hollow core piece is a hollow cylinder and the end flanges consist of rings.

Furthermore, bobbins in a square shape are known, in which the hollow core piece consists of a square box and the end flanges are formed by square frames.

Kb / b - 1/20/1969 - 2 -

690306 ^

I 4 "

E no. EW / 57 Reg. No.

Case: H.G. Mirbeth -10

Title :

"Bobbin"

Reference number

'

2 ^!

2 ^;

List of terms used

Original language D / B

Centerpiece

cavity

End flange

slot

Flange part

End flange

slot

Planschteil translation E / Cfc

. ■■ - ■ J ....; . ' -: .c -: ■ L. '■ (.: \ · u ..' ~ ".-. ■ ':. ■. [c ^{:; ·. ·;} .oi if keite :. prepares.. j ._.: ü ;;,.; c ^ 'L ^ tc; [■', i: lf..nk; 're: \ "."earth; ·! .intorschneicungen, perpendicular to: nt ^r cr :: .ur. "sric'atun,;, created by order of neitanbeweg licner. iOrr-elerentcn, which ground before O'ff- • lung the Foriyteileb'- · ic'ii bet-Mtirt v.'er. Urn the use / on Forcing with sides;:, ". ■: η or avoiding sliders, coils ¹ ;" roer V-'ufi;'^ uü for; :: f: leichen; ^T c!. ; 'er e.c' .. te documents of the German

P.vtent ^ nr-eldUiT [' ^: ". ' .Hi 3 ?. ':" VITÄc / ? 1 ■ ".. But) Γ-ar be-annte proceed provides niciit uie '''," one ich.l: ince, Cnulenkürper lawn uw cheaper than rnritz ^ u. -.- CDCR F'r ^' .. 'tci !!

The task is to create a coil body which, under avoidance, is the task of creating a coil. of slide forms in the whole p.espritzt or ^ epre? .t can be. This object is achieved in a <- or molding compound existing bobbin from a - ■ from SOritzguf: ACCORDING hollow core piece and two perpendicular to the coil axis end flanges ^ of the innovation characterized £ ^e lö ^ t that both ündflansche having one or more slits]..! and a flange part of the same shape, which has remained standing, of the other flange is opposite in the axial direction to each slot of the one flange.

So-called double flange bobbin with a hollow The core and slotted end flanges are inherently retained (German interpretation document 1 109 2GS). However, acts '. "! S in the known case around one, in the flanges radial running, uninterrupted slot that serves to the occurrence of turbulence in a coil body ; a, -. :: etisierbtii'er. Avoid sheet metal. Such bobbins but cannot be used in a sideshift-free Spritzc :: rr Mold-be produced.

H.G. Mirbeth-10 - 3 -

In contrast, the innovation creates bobbins in which the End flanges, which previously formed a more or less closed ring or frame, slots or recesses have in a regular arrangement of the type that a slot or a recess in the one Coil flange is a stationary flange part of the same shape in the other coil flange opposite in the axial direction. This allows the coil formers to move in the axial direction without the use of side pulls or slides "are demolded. The expensive and ■ slide forms that are prone to failure can therefore be replaced are made by cheaper, more precise and safer working slide-free forms. This also makes it easier Structure of the required multiple forms guaranteed.

Bobbins according to the innovation can thus be shot in a much faster sequence and cheaper than in the known Cases are made *

Coil bobbins according to the innovation can, while maintaining the regular arrangement of the slots or the remaining ones Flange parts otherwise have any shape, which depends primarily on whether the hollow core piece as an air gap, to accommodate an iron core of a certain shape or one or more protective tubes serves. It can preferably be cylindrical, but also square in shape. Is the bobbin for example Part of a protective tube contact relay with a protective tube located in the hollow core, a cylindrical bobbin will be more advantageous than a square one for reasons of space, especially since a hollow cylinder is also more torsion-resistant than a square box. Should, however, several adjacent Protective tubes are stored in the hollow core piece,

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H.G. Mirbeth -10 - 4 -

so the square shape is generally to be preferred, because it guarantees a smaller installation volume with a lower overall height.

Likewise under the aspect of economical production the bobbins can be injection-molded from thermoplastics or pressed from thermosetting plastics.

Further advantages and details of the innovation are explained with reference to the drawing, from which a particularly advantageous Embodiment · of the innovation can be seen. Show it:

Figure 1 in a perspective view of a coil body according to the innovation,

2a shows a longitudinal view of this bobbin and FIGS. 2b and 2c each have a cross-sectional view along the Section line I-I of Figure 2a.

The bobbin shown in the figures consists of the hollow core 1 and two end flanges 2, 3 perpendicular to the coil axis. 3 are designed as rings. Both end flanges 2, 3 have regularly arranged slots 2 'and 3' running in the radial direction. The arrangement of the slots 2 ', 3 ¹ is made so that each slot of the one end flange 2 or 3 is opposed to a stationary flange part 3 ¹¹ or 2 ^{11 of} the same shape of the other end flange 3 or 2 in the axial direction. According to this, for example, the ^{slot of the end flange 2 marked with 2 1 is} the remaining, identically shaped flange part 3 ^{fl of} the end flange 3 and a slot 3 'of the end flange 3 is the remaining, identically shaped paddling part 2 ^! of the end flange 2 assigned.

H.G. Mirbeth -10 - 5 - ■

From the drawing it can be seen that the slots 2 ', 3' or the remaining flange parts 2 ¹¹ , 3 ^{fl are} preferably formed in the shape of a segment of a circle. The end flanges 2, 3 each have a total of three slots 2 'jy or three remaining flange parts 2', 3 ¹ 'and together with the hollow core piece 1, the hollow cylinder, form a winding body for electrical coils, while the cavity 1', for example, for It is used to receive one or more protective tubes (not shown), as is known per se.

It can be seen from FIGS. 2b and 2c that at least two slots 2 'or 3' and two remaining flange parts 3 ¹¹ or 2 ^{11 of} each end flange 2 or 3 can be designed with the same shape. As a result, the corresponding casting or compression mold can be produced more easily and thus more economically.

Investments:

6 claims for protection
1 sheet of drawing

1 sheet. List of used
Designations

Claims (6)

Protection claims 1.) From injection molding or molding compound existing coil body from a hollow core and two end flanges perpendicular to the coil axis, characterized in that both end flanges (2, 3) have one or more slots (2 ¹ , 3 ') and each slot of one flange a remaining flange part of the same shape (2 ¹¹ , 3 ' ¹ ) of the other flange and vice versa is opposite in the axial direction. / 2.) Bobbin according to claim 1, characterized in that the end flanges (2, 3) are cylindrical and the slots (2 ·, 3 ') or the remaining flange parts (2 ¹¹ , 3'') are formed in the shape of a segment of a circle. 3 ·) Coil body according to claim 2, characterized in that at least two slots (2 ·, 3 ') and two remaining flange parts (2 ¹¹ , 3 ¹¹ ) of each end flange (2, 3) have the same shape 4.) Spool according to claim 2 or 3, characterized in that each end flange (2, 3) has three slots (2 ¹ , 3 ¹ ) or three remaining flange parts. (2 · ¹ , 3 '')., 5 ·) bobbin according to one or more of the claims 1 to 4, characterized in that it consists of a thermoplastic injection molding compound. Kb / b - January 20, 1969 • I> »I I ► I Il t t I 1 » * Il) Il t 11 I. ι I »1> I * H.G. Mirbeth -10 - 2 - 6.) bobbin according to one or more of claims 1 to 4, characterized in that it consists of a thermosetting molding compound. ^ /