DE1981647U - CONNECTOR. - Google Patents

Description

A. O25 4.70 ^ i5.1.68 ^: '· f,

Patent attorney Dr. D. Louis

85 NUREMBERG \ . Keßlerplatz 1

ν:. '"* Telephone 0911/558176

. . , Telegrams: Castle patent

. ^{ 8896 13 / right

Johann Höfler company, plastic toy factory Owner Dipl.-Ing. E.A., Bettag, Fürth / Bay.

Connector

The innovation relates to one in the opposite direction of insertion non-releasable plug connection between two components, in particular made of plastic, of which the receiving part has a recess and the plug-in part has an approach that can be guided into this

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A number of plug connections are known in which a plug-in part is inserted once into the receiving part. cannot be removed again in the opposite direction without causing destruction or damage to the components. This is meist.um male parts with noses having lugs which are inserted into slot-shaped "recesses. I ¹ Ur a tight connection must be the noses

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having attachment part squeezed through the recess

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be thrown », Of course you can.

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highly elastic material and delicate training of the , Components can only be plugged into one another with little force required Make connections. Such connections are

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but accordingly less resilient to tensile forces. Iri'j. ' As a rule, the approach or the bevels are on the approaches designed for a high load-bearing capacity under tensile stress, therefore have a compact shape, with a possible unyielding connection, a solid, at most viscoplastic material must be used. It is for that Putting together such a connection, therefore, quite well-

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te forces required; exists during the insertion process itself the ole of persistent impoverishment, compensation of the iag ^ n

- ■ '.- ■■ "■■ ■'. · ■ '■■■" ■. ■■■■ ^; - .. "- ■■ './ ./'" ·. ■ "'■ - ■".'.-. ■ '":" ** ■ "' ■ '·',"'or the tearing of the recess. The compromise in terms of material and design, which these things are under, -. ! since essentially the same parts are elastically deformable for the insertion, process as well as against tensile forces on

the inserted connection should be rigid and unyielding, '"' ·, ι - ■.". ■ ■. '■' ■ '. · ■ .-- ■ ■■■■ - ■ · ■ ".-. ■■ - - ■■ '.- ■ - "-". "■ · ■■■" ■

leads, overall, to unmanageable and convincing solutions. Ί In the case of a large part of these plug connections, the 'ι Materials are elastically deformed when plugged in These connections run the risk of loosening and closing; lent a complete solution, because the materials used here generally become increasingly elastic due to aging! forfeit. Finally, plug connections are known at which the mostly shaft-shaped attachment has no lugs or the like, but the hole-shaped recess of the mostly disc-shaped receiving part in its edge zone -.- by means of radial Incisions in flexible ones. Slats is divided.

These disks serve more than a kind of nut, that is, the receiving part to be connected to the plug-in part is penetrated by lugs attached to the steak and held between the plug-in part and the washer pushed onto the peg. Since the diameter of the pin is greater than the clear width of the disk hole in the case of unbent lamellas, the lamellas are bent in the insertion direction during the plugging process and remain in this position when the connection is inserted. In order to prevent the disc from slipping off the neck pin in the plug-in counter-direction, the lamellar edges engaging the shaft surface must be fairly sharp and exert a not insignificant pressure, which is why these discs are mostly made of steel. Height and / or changing loads in the tensile direction lead to notches in the attachment shaft ¹ , which is preferably made of plastic, by the lamellas, so that the contact pressure of the lamellas in addition to the aging-related shrinkage of elasticity decreases more and more, which is why this connection also over time an increasing loosening and finally even solution occurs.

It is, therefore, the task of 'a plug-in connection create, which on the one hand only requires low forces for the insertion process and which: on the other hand, as high as possible Tensile forces, in the opposite direction of insertion essentially relentlessly withstands. In addition, the connection in their strength independent of the bracket and the requirement of mass production following, simple and machinable as well

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be automatically mountable. The answer according to the appointment. this task provides a plug connection, in which at '' the receiving part at least one into the recess? / protruding flexible tab is formed, —die — ZWi = ^ T see one of their edges and one of them opposite- ':,. the edge of the recess an insertion gap for the receiving.

me of the approach, and that the approach at least 'one _; the recess edge has a nose reaching behind the recess, which fixes the extension against being pulled out of the recess in the insertion direction

Insertion of the approach results in the spring back of the tab is narrowed to a width that blocks the retraction of the bevel »

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Me solution sees a strict separation of tasks submit the elements involved in the connection: The tab, which can be largely flexibly designed with respect to forces in the insertion direction, leaves in the course of the insertion process Pass the bevel-provided approach of the plug-in part through the plug-in gap widening due to the bending of the tab with little resistance, Us the nose of the approach the opposite the edge of the recess located behind the tab engages behind, including an attacking approximately at right angles to the insertion force Force component is necessary here from the bent flexible tab goes out. In the space freed by the lateral snapping of the attachment

change the tab 'back. The one in the opposite direction at the ' Tensile forces acting on the connection are taken over by the nose, which can be designed to be almost as strong and stiff as desired

'against the essentially unyielding edge dea? Recess supports. That occurs due to the slight yielding of the edge- " The low force component in the direction of the nose slipping is caused by the flexible elastic tab which is spring-loaded and acts on the attachment on the opposite side of the nose • easily added, so that the connection is a total of tensile,. Kraft en..up to the level of the tensile strength of the. involved

In a particularly preferred embodiment of the plug connection the insertion gap is made at least as wide like the part of the Approach .. After snapping in the approach nose, the tab / can thus spring back completely, so / that it returns to its original position before. the insertion process and therefore does not show any bends. It goes without saying that this version is also used the. insertion gap due to the springing back of the tab has become so narrow again that the approach has not shifted that far can be that the nose of the undercut 'The recess edge can slide off. The advantage of this design consists in the fact that "fm inserted" state none of the Connecting parts is elastically deformed, so that signs of aging cannot affect the connection.

only at the beginning of the description of the solution has been mentioned so far

been that a plug connection according to the innovation also " more than one tab on the intake part "and / or more_al ^ __ ßxne - bevel at the approach of the plug-in part. The conceivable arrangements are extraordinarily diverse, such as: several lugs under a recess edge, several biege-r ;, ' Elastic tabs limit an insertion gap, noses pointing in different directions underneath grip flexible ones Tabs, etc., in most cases, however, such an arrangement will result in a more or less large number. of compounds according to the innovation of the ones described here, simplest 'let the embodiment dissect' '.

Equipping the parts to be connected with a recess and tab or attachment plus nose will be very simple in most cases and in the course of the mechanical. Manufacture of these _; .Parts can already be taken into account. Subsequent automatic assembly of these components would, however, require unnecessary precision at the connection point, especially in the case of flat and thin-walled designs. In addition to a correspondingly rounded or beveled design of the / insertion end of the paragraph, as well as a corresponding; Abschriägung or rounding of the insertion part, trimmed edges of the Einsteckspalts can taking account of the contact surfaces between the pin and the box at the junction · additional guides au £ facing the Einst.eckteil surface ■ the receiving part are provided, which obliquely _v to male

direction running. exhibit and "opening into the insertion gap sliding surfaces or G-leading edges, so that 'a little from the insertion direction offset to the joint supplied by the guides approach taken up and is directed towards the insertion gap ■ f. ■ - ,.

In particular when two flat components are connected perpendicular to each other, two further decisive features of the connection according to the innovation become apparent. The wall of the flat receiving part at the connection point has a preferably U-shaped slot as a recess, which; so that a piece of the Viand forms as a flexurally elastic tab and serves as an insertion gap in its middle part. In extension of the wall of the pin at the junction of the lug is formed, which is preferably just as thick as the wall, and having a ¹ vertically projecting from the wall surface Hase, wherein the support surface of the Nasal coming from the in the inserted state with the receiving member into contact Surface edge of the male part is just as far away as the wall of the receiving part is thick at the connection point. If these two parts designed in this way are put together in the manner already described , · ■■ ' so that the nose of the attachment that of the - flexurally elastic tab

^: ■ -. ■■ - : ■ '. "■■■■, - -. ■ - ■."' ■: .. ■■■ - ^r ■■■■■ -. "'■ .- ■ - V ■ / ■:"■' ■ ". '«' .. opposite edge of the insertion gap engages flush under

■ - ".. ■" ■■■ '". ■ ■ ■ ■■■' .- ■■" '"■ ■" ■' ^ and the tab is spring-backed, the plug-in part can be moved into the direction of the surface of the receiving rivet flexible flap is formed, 'almost not pivot; however, it can be folded down in the opposite direction easy lifting of the flexible tab by the -

pivoted approach possible, .wherein the bevel of the 'approach - slides from the undercut recess edge. With an inclined position of the plug-in part of approximately .45 ° with respect to the \, f receiving part, it is possible to loosen the plug-in part from the connection by slightly further lifting the b'ie "* - geelastic tab. These properties of the present plug-in connection make it possible to put together cubic 'structures from flat plastic parts, which, depending on the arrangement' of the individual plug-in connections, are either detachable or not afterwards. ",.

The embodiment of the plug-in connection according to the invention between two flat components presented in the last chapter is based on the example, which is explained in more detail in the following description and is shown in the drawing, with further features of the invention being shown. . . ''''- , * ^:; - _. :; - ■

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Figure 1 is a front view of the plug-in part; .

\ - Figure 2 is a plan view of the receiving part;

FIG. 3 shows a section along the I line UI-III of FIG. 1; FIG. 4 shows a section along the line IY-IT of FIG. 2; FIG. 5 shows a perspective view of a plug-in connection between the plug-in part and the receiving part; · ■ ".. ■ - ..""■'; ■

FIG. 6 shows a section along the line TI-VI in FIG. 5;

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but the circumstances during the insertion

of the male part '"' irr reproducing the receiving part.

FIG. 1 shows a flat plug-in part 1, on which a projection 3 is arranged while continuing the wall, on which "sees; a nose 4" is located. The sectional view in Figure 3 allows ^ ₁ . know that the nose 4 protrudes approximately perpendicular to the insertion direction and thus also perpendicular to the surface of the wall-shaped plug-in part - .1 »For better introduction of the approach
in the receiving part is a rounding / 5; intended.

In Figure 2, a flat receiving part is shown, in which Wall surface a recess 6 is embedded «Due this recess 6 is in the form of a TJ-shaped slot a flexurally elastic tab 7 is formed from the wall surface . The middle rope of the recess 6 serves as a Bin.st.eck- "

gap 8, that of an edge 9 of the movable tab ', · ■ "■' l (la.schenkante) and the opposite edge TO
(Recess edge) is limited. In particular in the accompanying sectional view of FIG. 4 it becomes clear that the edges 9. ___... and IO on the side facing the plug-in part have rounded-offs and bevels which enable the plug-in end 5 of the attachment 3 to be inserted more easily should. In this embodiment, the recess edge 10 is provided with a rounding 1T, while the flap edge is provided with a bevel 12 in such a way that a support surface 13 running parallel to the insertion direction is retained for the inserted attachment. . '"."■' .. '■■ - "-.""'. ■ ^v ■ '■" ■ "- ··,' ■ '"-.' ■ '-....

Figure 5 shows the components plugged into one another. One recognises,

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that the plug-in part with the approach into the plug-in .spalt 8 is introduced so that the nose 4 engages under the recess edge 10. The assignment of the individual connecting parts to each other after the end of the Ein e.ckvorgang can be seen even better from Figure β. The approach 3 is in the insertion gap stored, with his nose 4 the recess edge reaches under. Since the insertion gap is made a little wider is than the part of the Approach 3, the tab 7 can after the insertion process fully return to their untensioned position before they were plugged in. The contact surface 13 ^ of the tab 7 adjoins approach 3, so that it does not extend that far can move laterally that its nose 4, from the edge 10 slips off. Tensile forces in the opposite direction of insertion are taken from the Nose 4 or the recess edge 10- · added, which in comparison with the tab edge 9 behaves essentially rigidly and can absorb strong forces.

In Figure '6, two hump-shaped guides 14 and 15 are indicated by dashed lines, which are perpendicular to the insertion gap on both sides are arranged on this. These guide bodies have lateral sliding surfaces that are directly from the edges of the Insertion gap starting from one another in the opposite insertion direction remove, leaving a wedge-shaped introduction for the Approach 3 arises. A laterally offset approach of the approach, particularly possible with automatic assembly is "so by the inclusion of the approach 3 from the guide surfaces of guides 14 and 15 corrected. It goes without saying

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that the attachment of the guide .14 may only have an insignificant influence on the flexibility of the perch 7.

'In the sectional view of "Figure 7, the assignment of the bending part e · recognizable to each other during insertion. The vertical one impinging on the insertion gap. Approach may be due to its Width at the height of the nose do not easily pass the insertion gap, but rather exerts pressure in the insertion direction on the lateral edges of the insertion gap. This pressure is followed by the tab 7 by a flexible pivoting in the insertion direction, as a result of which the insertion gap widens to such an extent that it thickened by the nose 4 Place of the approach. As soon as in the course of the insertion process the nose 4 gets under the recess edge 10, gives way the approach 3 due to the resilient pressure of the tab 7 from the side, 'so that the nose 4 snaps under the recess edge TO and thus engages behind it. The side Following movement of the extension 3, the tab 7 swivels back: so that the assignments of the bent parts occur, as already described in connection with FIG. 6. ,

The last / paragraph demonstrate the features of the invention shown in the general description of the solution quite well: a lateral pivoting of the plug-in part T against the surface 'of the tab T is through the Reaching under the nose 4 under the essentially unyielding Recess edge 10 prevented. Pivoting in opposite

Direction, on the other hand, is the flexurally elastic yielding

tab 7 is quite possible. The approach can go so far be pivoted that the nose 4 slides away under the recess edge 10, so that by a further slight lifting of the tab 7 which ver ^ at an angle of approximately 45 pivoted plug-in part is detachable from the connection.

The innovation is not limited to the following claims, It includes all the features from the above

Writing and drawing that are based on the state of the art are evidently inventive *

"IN THE.·-

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Claims (6)

Protection claims 1. In the opposite direction of insertion, non-releasable ^ teOK connection \ .. '" between two components, in particular made of plastic, of which the receiving part has a recess and the plug-in part has a projection that can be inserted into this, characterized in that on the receiving part (2 ) at least one flexible tab (7) protruding into the recess (6) is formed, which has an insertion gap (8) for the attachment of the attachment (3) leaves free, and that the attachment has at least one lug (4) engaging behind the recess edge, which fixes the attachment against being pulled out of the recess in the opposite direction of insertion, the insertion gap when the attachment is inserted by bending the leash can be expanded to a width that allows the nose to pass through and, after the insertion of the attachment, the tongue can be receded onto a retraction of the nose locking width is narrowed. 2. Plug connection according to claim T, characterized by that the insertion gap '(8) is at least as wide as that when plugged in there is the attachment part, so that the tab (7) after inserting the extension (3) has no bends. . ♦ ■ " 3. Plug connection according to one or "both of the claims 1 and 2, characterized in that the tab edge (9) and / or the recess edge (OK) on the plug-in part (1) facing side for easier insertion of the adapter (3) beveled or rounded. . - 4 * Plug connection according to one or more of the preceding Claims, characterized in that on the de'm plug-in part (1) 'facing side of the receiving part (2) -a or several guides (14> 15) for safe insertion. of the approach (.3) »especially with- ^ automated assembly., are arranged obliquely to the direction of insertion on d-en Insertion gap (8) running sliding surfaces or G-leading edges exhibit. . ■■■■ 'V 5. Plug connection according to one or more of the preceding Claims, characterized in that - for the 'reaching behind the recess edge (10) approximately at right angles to ' Insertion direction protruding ITase (4) of the approach. (3) ■ continuously narrowing in the direction of insertion and in, the one beveled or rounded for easier insertion Insertion end (5) of the approach (3) transitioning out . forms is. .-. - ..- ";" "7. 6. Plug connection according to one or more of the preceding claims between two flat at the junction, components to be arranged perpendicular to each other ,, marked through a recess, (6) in G-shape one preferably U-shaped slot in the wall of the receiving part (2) ; ■■■ - ■■. '' ■: '. V ".- ■■■■■ ■ · ■■; - ■ ■. - 14 - / the junction and one in the middle area ■ "■ ■■■■ '' ■ '-" ■ "- V' ■■■ '*" of this slot insertable extension (j) * of the wall as a porta © tgung 4 wall dto Steokteils (1) instead of preferably in the same thickness_jftrie --di "e ^ l / 'and fully formed. · ^: · ·'" I * · ■■ i y λ; ^: - 15 -