DE29609041U1 - Kitchen sink - Google Patents

Description

PATENT ATTORNEYS .· . I 'II ^Ak&rizeic&Sni _#

DiPL-iNG. CONRAD KÖCHLING **""_-"_

DlPL-ING. CONRAD-JOACHIM KÖCHLING Note: Franz Filthaut KG, POBox2069,D-58020 Hagen Pr &ogr; vinzialstr .

Fleyer Strasse 135, D-58097 Hagen
Call(0233i)8ii64 + 85033 D-58708 Menden

Fax (02331) 84840

Telegrams: Patentköohling Hagen

Accounts:CommerzbankAG,Hagen3515095(bank code 45040042) ____________

Sparkasse Hagen 100012043 (bank code 45050001)
Postgiro: Dortmund 5989-460 (BLZ44010046)

Serial number 12150/96

from 22.*...May 1.9.9.6..

CJK/Re.

Kitchen sink

The invention relates to a spool, preferably made of plastic, for winding up band, thread or chain-shaped goods, such as yarns, chains, bands, hoses or similar windable materials, consisting of a spool core tube and two disks that can be plugged onto its ends and are held in the desired position in a locked manner, the spool core tube having radially projecting projections at its ends that can be inserted into pocket-like recesses in the disks that are open axially to the spool core tube and can be rotated by rotating the spool core tube and/or the disks behind holding surfaces of the pocket-like recesses that are radially adjacent to the recesses, the spool core tube being supported with its front edge on a rear surface of the pocket-like recesses.

Filthaut 12150/96

-2-

Such a coil is known from DE 92 06 906 Ul. Such a coil is relatively easy to manufacture, the individual parts require relatively little space and the coil can also be easily assembled and disassembled again. Spring means are provided on the disk, which are pre-tensioned when the coil core tube is axially fed to the disk, so that the spring means secure it in the desired position.

Although such a coil has proven itself to be effective, there is a certain disadvantage in that if the coil is not completely filled with winding material or if there is winding material on the coil that can move towards the center of the coil, for example chains or similar band-like elements, it is possible that the disks are axially displaced relative to the coil tube against the force of the spring means, so that the connection between the disks and the coil core tube comes loose.

Filthaut 12150/96

-3-

Based on such a prior art, the invention is based on the object of creating a spool which, while retaining the advantages already achieved in the prior art, ensures a secure cohesion of the individual parts, even if the spool is not completely full or is filled with movable winding material, whereby the disks should be clearly locked on the spool core tube in the desired position and yet simple disassembly and disassembly into the individual parts should be possible.

To solve this problem, the invention proposes that at least one of the projections, preferably on every second projection, has a first radially acting spring means formed thereon, which in the desired position engages behind a radially directed projection of the pocket-like recess and which can be unlocked through an engagement opening on the side of the disk facing away from the coil core tube, and that at least one further projection, preferably on every second

Filthaut 12150/96

-4-

further projection, in the closing direction of rotation on the front side of the projection, a second tangentially acting spring means is formed, which in the desired position (closing position) is supported and tensioned on a counter surface of the pocket-like recess and which, when the first spring means is unlocked, relaxes at least partially and rotates the coil core tube slightly back against the closing direction of rotation.

The coil core tube preferably has 4 radial projections in the form of flat elements at each end, wherein the diametrically opposite projections are of the same design. The two types of spring means ensure that when the disks are joined to the coil core tube, the projections can first be inserted into the axially open areas of the pocket-like recesses and then a relative rotation of the coil core tube to the disk takes place, whereby in the desired position the first spring means engage behind the radially directed projection of the pocket-like recess and thus the desired position is secured.

Filthaut 12150/96

he

The second spring means ensure that this locking connection is spring-loaded in the circumferential direction against the direction of rotation of the parts relative to one another during assembly, so that the locking first spring means are held spring-loaded by the second spring means. To release the connection, the locking of the first spring means can be released manually or with a suitable tool, for example with a screwdriver or with the tip of a ballpoint pen, whereby the second spring means then partially relax so that the coil core tube is slightly rotated radially relative to the disk and thus the first spring means no longer reach the locking position. The coil can then be easily dismantled and broken down into its individual parts.

Preferably, the engagement opening is designed as a window cutout in the support surface of the disk facing away from the coil core tube.

Filthaut 12150/96

This simplifies the intervention to unlock the first spring means.

It is particularly preferred that the first spring means is a spring bar formed on the tangentially directed edge of the projection, which runs parallel to the edge, is connected to the projection at its front end in the closing direction of rotation and runs freely towards its other end.

Furthermore, it is preferred that the second spring means is a spring bar formed on the radially directed edge of the projection located at the front in the closing direction of rotation, which is formed on the projection at its end facing the coil core tube casing and runs radially approximately parallel to the edge of the projection.

In addition, it is preferred that the radial projection of the recess is formed by a step in the wall of the pocket-like recess, wherein the engagement opening is formed in the region of the step.

Filthaut 12150/96

-7-

It is also preferred that the counter surface for the second spring means is formed by a projection or a protruding inclined surface of the pocket-like recess.

The projection, which has the first spring means, can be correspondingly recessed on the edge that faces the projection or the protruding inclined surface of the pocket-like recess, so that contact with this projection or the inclined surface is excluded. As a result of this design, all pocket-like recesses with projections and the like can be designed identically and the projections of the coil core tube can be fed into any pocket-like recess.

In addition, it is preferably provided that four projections and recesses are each formed diametrically opposite one another.

Filthaut 12150/96

In particular, it is preferably provided that the coil core tube is held with its projections in the pocket-like recesses with little radial play, so that when the first spring means is released, a slight relative rotation of the disk to the coil core tube takes place, which excludes renewed locking,

This means that one of the first spring means can be unlocked first, and a slight relative displacement and rotation of the disk to the coil core tube occurs, which prevents this released spring means from locking again. The other first spring means can then be released and the coil core tube can then be released from the disks by rotation.

An embodiment of the invention is shown in the drawing and described in more detail below.

Filthaut 12150/96

It shows:

Fig. 1 shows a coil according to the invention in view;

Fig. 2 the coil in the locking position seen in section;

Fig. 3 also seen from the bottom or top of the coil;

Fig. 4 is a view corresponding to Figure 3 with the elements not yet fully transferred into the locking position;

Fig. 5 also in a position in which only a partial rotation of the projections into the pocket-like recesses of the disc has taken place;

Fig. 6 is a section seen in the view according to VI-VI in Figure 4;

Filthaut 12150/96

-10-

Fig. 7 a coil core tube in front view;

Fig. 8 the coil core tube in the position in which

it is inserted axially into the window-like openings of the pocket-like recesses.

The drawing shows a spool 1 made of plastic, which is used for winding up goods in the form of strips, threads or chains. It consists of a spool core tube 2 and two disks 3 that can be plugged onto its ends and are held in the desired position by being locked in place. The spool core tube 2 has radially projecting projections 4, 5 at both ends that can be inserted into axially open pocket-like recesses in the disks 3 and can be rotated behind holding surfaces of the pocket-like recesses that are radially adjacent to the recesses by rotating the spool core tube 2 relative to the disks 3.

Filthaut 12150/96

-11-

The axial openings are designated 7. The pocket-like recesses 8 are connected to these. The holding surfaces are designated 9. The coil core tube 2 is supported with its front edge on a rear surface 10 of the pocket-like recess 8.

On at least one of the projections, in the exemplary embodiment on the projections 5, a first, radially acting spring means 11 is formed, which in the desired position, which is shown for example in Figure 3, engages behind a radially directed projection 12 of the pocket-like recess 8 and which is accessible and can be unlocked through an engagement opening on the side of the disk 3 facing away from the coil core tube 2. On further projections 4, on the side of the projection 4 that is at the front in the closing direction of rotation, second tangentially acting spring means 13 are formed, which in the desired position, which is shown for example in Figure 3, are supported on a counter surface 14 of the pocket-like recess 8 and are thereby spring-loaded. When the first spring means is unlocked, as can be seen from the

Filthaut 12150/96

-12-

As can be seen in the representation according to Figure 4 or Figure 5, the second spring means 13 is relaxed and the coil core tube 2 is slightly rotated back against the closing direction by the spring force of the second spring means 13, so that the first spring means 11 can no longer reach the locking position. The engagement opening is designed as a rear window cutout in the support surface 10 of the disk 3 facing away from the coil core tube 2, as indicated for example in Figure 6 at 15.

As can be seen in particular from Figure 7, the first spring means 11 is a spring bar formed on the tangentially directed edge of the projection 5, which runs parallel to the edge and is connected to the projection 5 at its front end in the closing direction of rotation, while it runs freely towards its other end and forms a spacing gap to the projection 5.

■%♦

Filthaut 12150/96

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The second spring means 13 is a spring bar formed on the radially directed edge of the projection 4, which is located at the front in the closing direction of rotation, which is formed on the projection 4 at its end facing the coil core tube casing and runs radially approximately parallel to the edge of the projection. A spacer gap is formed between the edge of the projection and the spring means 13, which enables the springing.

The radial projection 12 of the pocket-like recess of the disk 3 is formed by a step in the wall of the pocket-like recess, with the engagement opening 15 also being formed in the area of the step. The counter surface 14 for the second spring means 13 is formed by a projection or a protruding inclined surface of the pocket-like recess.

In the embodiment, 4 projections 4, 5 and corresponding recesses are provided, with similar projections 4 and 5 lying diametrically opposite each other. The arrangement is preferably such that

Filthaut 12150/96

-14-

made so that the coil core tube can be inserted with its projections into the pocket-like recesses with little radial play, so that when the first spring means 11 is released, a slight relative rotation or displacement of the disk 3 to the coil core tube 2 occurs, which prevents this spring means 11 from being locked again. The second spring means 11 can then be released and the disk 3 can be released from the coil core tube 2.

The invention is not limited to the embodiment, but is variable in many ways within the scope of the disclosure.

All new individual and combination features disclosed in the description and/or drawing are considered essential to the invention.

Claims (8)

Filthaut 12150/96 -15- Protection claims: 1. Spool, preferably made of plastic, for winding up band, thread or chain-shaped goods, such as yarns, chains, bands, hoses or similar windable materials, consisting of a spool core tube and two disks which can be plugged onto the ends of the latter and which are held in the desired position in a locked manner, the spool core tube having radially projecting projections at its ends which can be inserted into pocket-like recesses in the disks which are open axially to the spool core tube and can be rotated by rotating the spool core tube and/or the disks behind holding surfaces of the pocket-like recesses which are radially adjacent to the recesses, the spool core tube being supported with its front edge on a rear surface of the pocket-like recesses, characterized in that a first radially acting spring means (11) is formed on at least one of the projections (4, 5), preferably on every second projection (5), which in the Filthaut 12150/96 -16- In the desired position, a spring means (13) engages behind a radially directed projection (12) of the pocket-like recess (8) and which can be unlocked through an engagement opening (15) on the disk side facing away from the coil core tube (2), and that on the same projection or on at least one further projection (4), preferably on every second further projection (4) in the closing direction on the front side of the projection (4) a second tangentially acting spring means (13) is formed, which in the desired position (closed position) is supported and tensioned on a counter surface (14) of the pocket-like recess (8) and which, when the first spring means (11) is unlocked, at least partially relaxes and the coil core tube (2) turns back slightly against the closing direction. 2. Coil according to claim 1, characterized in that the engagement opening (15) is designed as a window cutout in the support surface (10) of the disc (3) facing away from the coil core tube. Filthaut 12150/96 -17- 3. Coil according to claim 1 or 2, characterized in that the first spring means (11) is a spring bar formed on the tangentially directed edge of the projection (5), which runs parallel to the edge, is connected to the projection (5) at its front end in the closing direction of rotation and runs freely towards its other end. 4. Coil according to one of claims 1 to 3, characterized in that the second spring means (13) is a spring bar formed on the radially directed edge of the projection (4) lying at the front in the closing direction of rotation, which is formed on the projection (4) at its end facing the coil core tube casing and runs radially directed approximately parallel to the edge of the projection (4). 5. Coil according to one of claims 1 to 4, characterized in that the radial projection (12) of the recess (8) is formed by a step in the wall of the Filthaut 12150/96 -18- pocket-like recess (8) is formed, wherein the engagement opening (15) is formed in the region of the step. 6. Coil according to one of claims 1 to 5, characterized in that the counter surface (14) for the second spring means (13) is formed by a projection or a projecting inclined surface of the pocket-like recess (8). 7. Coil according to one of claims 1 to 6, characterized in that four projections (4,5) and recesses (8) are each formed diametrically opposite one another. 8. Coil according to one of claims 1 to 7, characterized in that the coil core tube (2) is held with its projections (4, 5) in the pocket-like recesses (8) with a small radial play, so that when the first spring means (11) is released, a small relative rotation of the disk (3) to the coil core tube (2) takes place, which precludes renewed locking.