DE7723635U1 - LOCKING ELEMENT - Google Patents

Description

. *. * PATENT LAWYERS

Dipl.-Ing. A. Wasmeier Dipl.-Ing. H. Graf

Patent Attorneys P.O. Box 382 8400 Regensburg 1

To the
German Patent Office H / g 8910 D-8400 REGENSBURG 1 8000 Munich 2 4900 Herford / Westphalia, GREFLINGER STRASSE 7
Telephone (09 41) 5 47 53 Closure element Telegram Begpatent Rgb.
Telex 6 5709 repat d Day
Date "C July 20, 1977
Gr / yes Your reference Your message Our reference
Your Ref. Your Letter Our ReI. Eupensr Street Richard Heinze Company,

The innovation relates to a closure element or a protective element.

It is known per se to provide openings or bores in workpieces Transport from manufacturer to customer by means of sealing elements or sealing plugs to be closed to prevent moisture, dust or other foreign bodies from entering the bores. The plugs are used when the workpiece is used or further processed removed from the workpiece by the pick-up.

Similarly, it is known, for example from the surface of a Workpiece protruding approaches, such as bolts, connecting pieces for lines or pipes, etc. by covering caps to prevent soiling or to protect against damage.

3L5,7,5C, 20a73} 5 839300 place of jurisdiction Regensburg

⁵⁹ -ρ ° 7-36,

Postal check Munich 893 69- ^ 0 ^ / J k JK no 1 <j ηη

Since these plugs or cover caps are parts of the trade, which is usually only used once or after removing the workpiece concerned are thrown away, «Usβ © η these parts if possible be cheap and inexpensive to manufacture.

The innovation is based on the task of a closure element or a To show protective element which fully meets this requirement. To solve this problem, a closure element or protective element is newly marked + by its cup-shaped design annular peripheral wall and with a closed bottom part on one end face or at one end of this peripheral wall, with a laterally protruding edge being provided at the other end or at the other end face

preferably

Due to the cup-shaped design, according to the innovation, the closure or Protective element optionally as a stopper to close an opening of a workpiece or as one on a shoulder of a workpiece or used on one end of a workpiece attachable protective cap will. Due to this double function, for each Closing element of a certain size has a wide range of uses, so that the closing element can be manufactured cheaply in large numbers can. In addition, the dual function makes warehousing more different Types of closure elements significantly reduced.

To ensure a secure hold of the closure element according to the invention on the To guarantee the workpiece concerned, this locking element made of elastically deformable material, preferably made of elastic plastic, the use of plastic also in terms of an inexpensive one Manufacturing offers considerable advantages

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Developments of the innovation is in the U _n teran * prUchen described.

The innovation is shown in the following on the basis of the figures on an embodiment «- example explained in more detail. Show it:

Fig. 1 in a perspective view © in the embodiment of the innovation proper closure element;

FIG. 2 shows a longitudinal section through the closure element according to FIG. 1;

FIG _o 3 is a view similar to FIG · 2, but with a modified embodiment of the renewal according Vsrschlußelemer.tss.

The locking element 1 shown in FIGS. 1 and 2, made in one piece as a cast part from elastic plastic, is manufactured as a cup-shaped element and has an annular peripheral wall 2, at one end of which a bottom part 3 is formed, the latter being the locking element 1 at the end in question concludes. At the other end of the annular circumferential wall 2, a plate-shaped protruding edge 4 is formed, which is stepped on its side surface facing the bottom part 3 in such a way that the edge 4 has a circumferential surface 5 with a larger diameter adjacent to the open end of the closure element and has a circumferential surface 6 with a reduced cross-section on the end face facing the base part 3. The annular circumferential wall 2 encloses an inner space 7 with a circular cross-section, which widens at the end facing away from the bottom part 3 in the area 8 towards the open end of the closure element 1, ie in the direction of the axis of symmetry S of this closure element.

In the area of the annular peripheral wall 2, the closure element 1 is on the outer surface slightly frustoconical designed in such a way that the outer diameter of the closure element decreases slightly in the direction of the axis of symmetry from the edge 4 to the bottom part 3, whereby a

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push the closure element 1 into a bore of a not shown Workpiece is significantly simplified. The outer surface of the annular circumferential wall 2 has an inclination of approximately 3 with respect to one another the axis of symmetry S, while the inner wall of the funnel-shaped widening area 8 a slope of about 30 opposite this axis of symmetry possesses.

The closure element shown in Figs. 1 and 2 can optionally be used as Sealing plug for closing an opening of a not shown in detail Workpiece or can be used as a cap that is pushed onto an approach, a pipe, a bolt, etc. of a workpiece will.

When using ice stopper, the locking element 1 with the The bottom part 3 is pushed ahead into the opening or bore of the workpiece to be closed, the diameter of the closure element 1 in the area of the bottom part 3 is adapted to the diameter of the opening or bore to be closed that the closure element 1 with its end closed by the bottom part 3? n to be closed ^ The opening or bore fits and when pushed into this bore due to the frustoconical circumferential surface in the area the peripheral wall 2 under elastic deformation firmly against the wall υ j the hole to be closed and held there by a gill seat will. The stepped formation of the edge 4 ensures that that even when the closure element 1 is pushed completely into the opening or bore of a workpiece to be closed, the closure element 1 with the larger one Peripheral surface 5 provided part of the edge 4 has a certain distance from the adjacent surface of the workpiece, so that the closure element 1 with the help of a tool, e.g. a screwdriver, which grips under this part of the edge 4 and which is simultaneously on the adjacent Surface of the workpiece trimmed without difficulty

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removed again from the relevant opening or hole in the workpiece can be.

When using the closure element 1 as a closure cap, this Closure element to be provided with the area 8 ahead of the cap Approach (bolt, tube, etc.) of the workpiece pushed on, whereby

the diameter of the interior 7 is slightly smaller than the outer

: diameter of the attachment on the workpiece. With this postponement that becomes Closure element 1 with elastic deformation of the plastic material used widened so that the closure element with the inner surface of the Innenrcumes 7 rests tightly against the approach and through there Press fit is held. If the neck is threaded

'or as a threaded bolt or a threaded connection pipe is formed, it is of course also possible to use the innovation Closure element 1 after this approach has been introduced into the area 8 with the application of a certain pressure in the direction of the axis of symmetry S to screw onto the thread of the neck, also being

: by widening the interior 7, a press fit of the closure element on the approach is achieved.

The closure element 1 'shown in FIG. 3 differs from the ! Closure element 1 of Figs. 1 and 2 essentially characterized in that in the

Bottom part 3 'in the interior 7 an annular groove or bead 9 is provided, namely at the transition point between the bottom part 3 ¹ and the

annular Umfcngswand 2. Furthermore, 'is provided a central circular recess 10, which zusammer with the bead 9 in the embodiment shown in Figure 3 is cross-sectional view of ^the.: fastener element 1' to the outer side of the Bodonteils 3 provides a concertina-like profile for the bottom portion 3 '. As a result, a greater deformability of the annular circumferential wall 2 in the area of the bottom part 3 'is achieved compared to the embodiment of FIGS

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Il I I I

Area of the bottom part 3 * when being introduced into an opening to be closed or compress the bore of a workpiece relatively strongly or when pushed onto a shoulder of a workpiece, widening behaves proportionally. The latter, for example, is then special advantageous if the closure element 1 'as a cap avf an approach a workpiece is to be pushed on, which at its free end protrudes laterally beyond the rest of the circumference of the approach Has flange.

By producing the closure element 1 or 1 'from elastic Deformable plastic is not just made in the manner described above a secure hold of the closure element on the workpiece is achieved, but it is also possible at the same time, the closure element 1 or 1 'to Closing openings on a workpiece or as a protective cap for Approaches to this workpiece should also be used when the too veγι closing opening or the approach to be provided with a protective cap has a cross-section that deviates from the circular shape, since the closure element according to the invention is due to the material used respective shape of the opening or the approach of the workpiece without can further customize.

The innovation was described above using exemplary embodiments. It it goes without saying that modifications thereof are possible without thereby departing from the concept of the invention.

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Claims (8)

Protection claims 1. Closure element, characterized by its pot-shaped design with an annular U «catch wall (2) and closed bottom part (3, 3 ¹ ) at one end or on one end face of the peripheral wall (2), on the other end face / a laterally protruding edge (4) provided preferably
is. 2. Vertdilußelement according to claim 1, characterized by its manufacture made of elastically deformable material, e.g. made of elastic plastic. 3. Closure element according to claim 1 or 2, characterized in that the edge (4) projecting away from the peripheral wall (2) is stepped in such a way that the outer diameter of the edge (4) in the direction of the bottom part (3, 3 ') step-shaped towards the open end enlarged. 4.'Verschlußelement according to any aer claims 1 to 3, characterized in that that the outer diameter of the annular peripheral wall (2) from the bottom part (3, 3 ') to the other end face is frustoconical increases. 5. Closure element according to claim 4, characterized in that the outer surfaces of the annular peripheral wall (2) has an inclination of 3 ° with respect to the axis of symmetry (S). 6. Closure element according to one of claims © 1 to 5, characterized in that the interior (7) of the element (1, I ⁸ ) has a circular cross-section. 7723635 11/03/77 Γι · f * t t I Γ * r r r ι 1 II m · 7. Closure element according to claim 6, characterized in that the Cross-section of the interior (7) is made constant at least in a partial area. 8. Closure element according to one of claims 1 to 7, characterized in that that the interior (7) to the other end or to the other End face widened in a funnel shape. 9 · Closure element according to claim 8, characterized / that the Znnenwandung in the funnel-shaped widening area (8) a Has a slope of 30 relative to the axis of symmetry (S). 0. Closure element according to any one of claims 1 to 9, characterized in that ^{an annular groove or bead (9) is provided in the bottom part (3 1} ) in the region of the transition point between this bottom part and the peripheral wall (2). 1. Closure element according to claim 10, characterized in that the groove or bead (9) is located on the string of the ßode part (3 ¹ ) facing the interior (7). 2. Closure element according to one of claims 1 to 11? characterized by a central, preferably circular recess (1O) in the bottom part (3 ¹ ). 3. Closure element according to claim 12, characterized in that the recess (1O) is ancfer the groove or bead (9) facing away from the bottom part (3 ¹ ). 4. Closure element according to claim 12 or 13, characterized in that List the recess (10) provided on the outer surface of the bottom part (3 °) 7723635 11/03/77