DE2262688A1 - ROLLER HANGER FOR CURTAINS - Google Patents

Description

PATENT ADVOCATE

Λ «$ 7 R θ ti ff ί _n #» OO OOOOO

Hind.nh .., -.;. ~ ⁹ 5 ⁿ 'word no. 11 b L ο ο ο

P 1992

l? v & G. Hachtel 7080 Aalen

Roll hangers for curtains

The invention relates to a Roll'auf hanger for anchoring of curtains or the like. in guide rails, with a molded plastic body in which a roller shaft is mounted and on which .ein hanging bracket is formed, which is at its free end has an opening with which it can be pushed onto a pin of the suspension body for closing.

Such a roll hanger, which a sure Yerachluß of the hanging bracket and in its hanging bracket several hangers of curtains for gathering the curtains can be accommodated is already known (DT-PS 1 169 093). The manufacture of this roll hanger however, it is complicated and correspondingly relatively expensive. In order to produce it by injection molding from plastic, injection molds with so-called side pulls must be used can be used to store the

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Carry out any backlash as necessary to be able to. Through these side pulls or sliders, the (jußform, die thus has a shorter service life and is expensive to manufacture anyway. The injection mold can also be built because of this slide groove with a limited number of subjects, so that during an injection molding process only a relatively small number of roll hangers are manufactured. There is also injection mold for these the risk that burrs will form on the molded part due to wear of the mold, which would affect the run of the roller hangers in the guide rails.

The invention is based on the object of creating a roll hanger that securely locks the suspension bracket guaranteed, but no complicated injection molds with side pulls required for its production power..

The task set is according to the invention by a Rolling hanger released, which is characterized in that the one formed on the hanger body and with the opening in the suspension bracket cooperating pegs have a web-like shaft and a pronounced one at its free end Has head, which is formed by a widening of the web on part of its circumference, that the undercut Part of the head and the adjacent walls of the shaft of the pin through into the injection mold

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inserted mold cores are determined, and that the web-like shaft of the pin with the hanger. body is connected exclusively in the circumferential area in which the head of the pin is not protrudes over the shaft wall. The hanger has the inserted into the injection mold Mold cores caused openings, their size and position at least the projection area of the behind cut areas of the head of the pin on the hanger body.

The opening of the suspension bracket cooperating with the pin head can be designed in different ways, for example so> that it extends towards the end of the bracket from a cross-section exceeding the pin head tapers a width which is smaller than the width of the tenon head, or that it has a smaller width than the tenon head and can be pushed over the tenon head with expansion, or that it is one of the tenon head has a corresponding basic shape and narrowed at the end of the temple by an inwardly directed ^ wall part is.

■ A roll hanger according to the invention has the advantage that it can be produced in injection molds without side pulls, i.e. in injection molds with an optimal number single Pormnester and with a long lifespan. Also, no burrs can form on the roller hanger, which could interfere with his puncture. This lets

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a roll hanger according to the invention is "cheaper produce than previously known roll hangers that have a safety lock of the hanging bracket. The roller hanger designed according to the invention can also be used for washing the curtains with the curtains stay connected.

Details of the invention emerge from the following description in conjunction with the drawing, on which one embodiment of a roller hanger according to the invention is shown more or less schematically is.

Show in detail:

1 shows a side view of the roller hanger with the hanging bracket open;

FIG. 2 shows a section along the line II - II in Eig.1 on an enlarged scale compared to FIG. 1; FIG.

Pig. 3 shows an individual illustration of a second embodiment of the hanging bracket end;

i'ig. 4 shows a partial section through a roller hanger along the line IV - IV in Pig. 3;

i'ig. 5 an individual representation of a third

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shape of the suspension bracket end;

Pig. 6 a line section through a. Roll-up hanger along the line Yl - YI in Pig. 5.

In all figures the same parts are with the same Reference numerals and different embodiments are indicated by index marks added to the reference numerals different number from each other.

The roller hanger for curtains shown in Pig has a U-shaped hanger body 10 with downward directed opening and the "two U-legs 10a and 10b on. In this hanger body 10 is a with-two washers 12 provided roller shaft 11 inserted from below and mounted so that on both sides of the hanger body 10 each has a running disk.

One leg 10a of the hanger body 10 is extended to the suspension bracket 13, the free end of which is designed as an eyelet or 14 ¹ ; Pig. 1 shows two eyelet shapes, each half-way and separated from one another by a center line 15. These two eyelets differ in the shape of the eyelet opening 16 or 16 ·. In each pail, the eyelet opening in its area 16a or 16'a located on the inside of the bracket has a width which is greater than the diameter of a round head 17a of a peg 17 which is attached to the other leg 10b of the U-shaped hanger.

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body 10 is formed so that the use 14 or 14 'can be pushed over this pin head 17a. In its end area 16b or 16'b is the Eyelet opening 16 or 16 ', however, tapers to a width which is smaller than the diameter of the pin head 17a.

The pin 17 is perpendicular to the plane of the suspension bracket 13 directed and consists of the pin shank 17b and the round formed at the free end of this pin shank and widened tenon head 17a. As can be seen from i'ig, 1 is, the pin shaft 17b is formed like a web and points in the longitudinal direction of the hanger body leg 1Ob ^ on which it is arranged, a width on, which corresponds to the diameter of the pin head 17a. As can be seen from the enlarged sectional view of l'ig.2 IBt, the web-like peg shaft 17b bridges an opening in the associated U-leg 10b of the hanger body 10, in which a fork-like and in i * ig.2 drawn mold core pin 18 of an injection mold can immerse. The pin shank 17b is therefore only at its bow-side end at those marked with arrows in Jj'ig.1 Place 19 of its greatest width connected to the U-bar 10b of the hanger body 10. Through the inserted, The G-bar webs 18a and 18b, which have a circular segment-like cross-section, can be undercut Produce areas 17c of the pin head 17a in a slide-less injection mold, the mold parting line 19 is entered in phantom in Figure 2.

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The undercut areas 17c are to secure '. the hooked in the pin 17 eyelet 14 of the suspension bracket 13 is required to secure the eyelet against a lateral pushing off from the pin 17 eu. When the eyelet with its wide opening area 16a or 16'a has been pushed over the tenon head 17, the eyelet can be lowered over the web-like tenon shaft 17b so that the tenon shaft 17b engages in the tapered end region 16b or 16'b of the eyelet opening. In this position, the pin head 17a 14 prevents the lug on a lateral pushing of the stud web 17b "To open the Einhängebügels thus the eyelet 10b of the hanger body must be moved nach'oben 14 in the longitudinal direction of the leg until the wider eyelet 16a or 16 ^l a with the tenon head 17a again aligned ₉ and so that the eyelet can be pushed over the tenon head.

From one mold half of an injection mold there is a mold core pin 18 with its two fork-like ones End webs 18a and 18b in the other half of the Eorrn limited mold cavity for the pin head 17a as far as that provided for hanging the eyelet 14 Pin shank 17b should be enough. Forms between the two mold core webs 18a and 18b during injection molding the pivot web 17b. The undercut surfaces 17c on the pin 17a are in this way without side pulls or sideshift reached in the injection mold. The mold core pin 18 is caused by the injection pressure during injection molding from the inside sealing against the side wall of the mold cavities

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pressed so that no burr can arise on the outer edge of the undercut surfaces 17c, even with increasing No wear on the injection mold.

The suspension bracket 13 of the inventively designed Roll hanger allows a strong gathering of the curtains, since it has a large opening cross-section and only in its closure area, i.e. at its eyelet end, something is drawn inwards.

3 and 4 show the free end of a suspension bracket 13 with an eyelet 14 ¹¹ , the eyelet opening 16 * '' has the shape of an elongated hole, the width of which is smaller than the diameter of the pin head 17a. The load ring 13 with the eyelet H ^'1 is made of a relatively flexible plastic material, so that the eyelet opening 16''by deforming the eyelet 14 by train in the direction of the two arrows entered leaves 20 expand to such an extent that the eyelet 14 * * can be pushed over the pin head 17a.

In the embodiment of Figures 5 and 6, the free end of the Einhängebügels 13, a adapted to the pin head 17a annular eyelet 14 ^'fl on, but having an inwardly directed wall section 21st Through this inwardly directed wall section 21, the eyelet opening 16 '″ is reduced to a cross section which is smaller than the cross section

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of the journal head 17a ,. Attaching the eyelet 14 ^1! 'Via the pin head can only be achieved by widening the eyelet 14 * *', which in turn is made of a flexible plastic. As the sectional view of Pig. 6 shows, in this embodiment the pin head 17a has only a single undercut area 17c. Accordingly, in this embodiment, no fork-shaped Pormkernstift 18 is required.

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Claims (5)

P 1992 - 10 - Claims Roller hanger for anchoring curtains in guide rails, with an injection-molded plastic Body in which a roller shaft is mounted and on which a suspension bracket is molded, which has an opening at its free end, with which it closes on a pin of the Hanger body can be pushed on, characterized in that that the one formed on the hanger body (lO) and with the opening in the suspension bracket cooperating pegs (i7) a web-like shaft (17b) and at its free end a pronounced head (I7aj, which by a widening of the Web is formed on part of its circumference that the undercut part of the head (17a) and the adjoining walls of the shaft (17b) of the pin (17) through at least one in the injection mold Inserted mold core are determined, and that the web-like shaft (17b) of the pin (17) with the Hanger body (10) is connected exclusively in the circumferential area (19) in which the head (17a) of the pin (17) does not protrude beyond the shaft wall. 2. Roll hanger according to claim 1, characterized in that the hanger body through the into the Injection mold inserted mold cores conditional through- - 11 - 409826/0149 P 1992 - 11 - has fractures whose cross-section according to size and location is at least the projection area of the corresponds to undercut areas of the head (17a) of the pin (17) on the hanger body. 3. Roll hanger according to claim 1 and claim 2, characterized in that the opening (16) of the suspension bracket (13) cooperating with the pin head (17a) tapers towards the bracket end from a cross-section exceeding the pin head to a width which is smaller than the width of _a Z pfenkopfes (17a). 4. Roll hanger according to claim 1 and claim 2, characterized in that the with the pin ™ head (17a) cooperating opening (1.6 '') a has a smaller width than the tenon head and can be pushed over the tenon head (17a) with expansion is.. 5. Roll hanger according to claim 1 and claim 4j characterized in that the opening (16 · '* ») a has the basic shape corresponding to the pin head (17a) and is narrowed at the end of the temple by an inwardly directed wall part (21). 409826/0149 L e r s e i t e