DE1925042U - DEVICE FOR CONNECTING COMPONENTS. - Google Patents

Description

ί ΑΪ

νί 920ΑΪ65

. '"■■ ·· ■"' FP 42, FM 42

Device for connecting components

The invention relates to a device for connecting Components, in particular thin plates, sheets or the like. By screwing. ...

When it comes to the connection of plates or sheets using is about screws and nuts, the screwing was done the metal parts concerned so far in such a way that the connecting screw after passing through a plate with a nut behind the second plate came into engagement. The nuts in question could, for example, through Welding to the metal part is another method consisted in the fact that a threaded eye was cast onto the metal plate

or was welded on. Instead of the commercially available nuts #aren sheet metal: or cage nuts used for such purposes. ,. ,

It is also known to make two plates by, screwing them together in the manner to connect that a cylindrical metal body with internal thread and smooth external surface and one-sided external toothed, unthreaded part is passed through the holes of the panels to be connected, whereupon by tightening a fastening screw of the threadless part is pressed to form a bead on the side of the metal plate facing away from the screw head. This device requires a special screw with a shaft attachment against which the neck of the screw part designed as an expansion element is positioned must support, otherwise there is no upsetting or pressing in the form of a bead, but on the other hand precisely due to the friction the shaft attachment of the special screw against the neck of the expansion element a very high torque is created, which can only be achieved through a strong interlocking of the throat-free part in the wall of the borehole the object to be fastened can be caught.

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Another disadvantage of this device is that it if it is the connection of thin sheets, as a result the bevel of the screw part, which is thicker than the sheet metal, not used for a flush connection with a smooth drill hole can be. . .

So it must be the externally toothed part, its diameter at least that of the borehole in the. Plate corresponds to a corresponding rotation lock for the force-consuming upsetting process of the connecting element into which the plates to be connected, especially in steel, are driven with great effort, so that the teeth firmly bite into the borehole walls, with thin e.g. self-supporting body panels undoubtedly also would deform undesirably in the vicinity of the dowel hole.

On the other hand, there is a flush connection of components, in particular thin metal sheets, by screwing them to simpler ones Means according to the invention in that the screw nut is made of plastic, only the part facing away from the screw head with is provided with a thread. The nut has a conically flared neck, which is about the same wall thickness as the has a thread-free part and is expediently provided with a corrugation on the outside Screw nut caused by the elasticity of the conically enlarged Neck can be pressed into the borehole without deformation of the sheet metal in the vicinity of the borehole is caused and before inserting the fastening screw a rotation lock is available. The main plastic used for the screw nut, which can be designed as a hollow dowel Nylon (R). The thread-free part of the screw nut has a wall thickness that makes it possible that when tightening the screw bolt, which consists of a normal and commercially available screw (without having to use special designs), a to the Borehole edge of the component standing eroding bead is formed. Another advantage is the "thread-free neck approach" of the Screw nut after insertion into the borehole of the component, caused by the conicity of the neck and the elasticity of the plastic, plus a compression on the circumference and thus

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one

Increasing the anti-rotation security is particularly important for

Connections in which the- '%% ψ lie to each other and the screw! sits on. The fact that the fabric nut presses on compression when tightening creates a connection. The vorgi a watertight fastening §, ä of the thread and on the other hand

k surfaces plan gegenäärkt-ecef one of the ,. Areas di €? '€ ff% indegänge der Kunstbe'f ^ es.t on their aisles by -ö ^ eia the screw vibration- proof ßgek & \ device provides ¹ further eia & rs £ its due to the friction föifteirlochlüssige, attachment of the

conically widened neck part is hfeivp _r rgerüf0n, in the latter especially when this ' dvti ^ Sh ^ S ^ ä & lM ^ g acts as a washer. - ~ ' ^k Χ'^ι;; -? \ / "

Such a Kunststoffmuttfeijhi ^ -a ^^ vdten 'essential advantage that you screw the aftdejrfe'Öegeijestand flush with a thin sheet of metal

can, with the screw head resting on the component to be fastened. This is not possible with the dowels previously used, since the dowel head or dowel between the object to be screwed ; _: Schafja.nöatz_ a screw hiriderlichist., 'I \ sr ^ ^S * "'' ^: ·· "V-'

Another advantage of the vorgescjkaagenei ^ Vorilchtung is that, depending on the assembly requirement, e.tw ^ bfei'nicht ' ¹ with, the surface flush mounting, the neck of the plastic nut-so% fei | * over the component can protrude that it has a Siau & unf finds out; which is pressed in the form of a bead on the borehole wall as a ^ i ^^ tia ^ reBeibe.

This creates an additional, extended, secure, and the screwed parts' £ 3; ecfae isolating against one another Mother. Another essential protection against vibration and rotation for the screwed-in screw wirsd / 'Sscfiirc &' ^ e acts that the thread of the

Screw nut on the screw nut, © Ine igemss «exerts friction so that

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on spring lock or the like. verzi ^ | ^ # - ^ rerde "ri can. For this friction is a prerequisite that the attachment of the thread part in its

Strength is such that 'si <äi Individual turns of the threaded part ί can be pressed on to the screw and thread.

a'.Artziöhen the screw the one

^ gangs of the screw form from usual play between

\ if.

The described embodiment results in one eias & isehe and 'at the same time versatile attachment, which not ar "deml ^ äl ^ agenliäiu, but many others

Further details and advantages ejffiejaön can be found * from the enclosed. Drawing. This shows:., _S '.. """"'>'"

Fig. 1 shows a plastic nut in a cut. - "'' \

Fig. 3 offered the same view after flush ver'fechfäubung

partially tightened screw ','"*: ^ ' · ■' Fig. 4 the same view with 'en4g ^ iger V ^ r & cliraiabung. ^i: Fig. 5 the same view of the plastic nut connected flush with the mat | .eil of the screw.

Figure 1 shows a Hohldubeil-Ausku ^ sjtstoff; de sfee ^ .yor of those. Part has an internal thread Ib for receiving e ^ tser SchVaube 2, while the middle part Ic forms a thinner ^^ g ^ wiijdjöf ^ e ^ '1? Jand. Towards its rear end the Bubel ^ ili goes over to a Seniischeii Haisaneatz I'd, which is about the same wall thickness & e ^ esitäi'wi'e ler ge ^ indelo.se 'part and is fluted on its circumference. !.! · ³ ^^ Ar 2 in d ^ borehole -3a of the plate 3 as a through-bore for the Dj & ^bfeiscnaJ: · to 3 and X 4 to be bolted flush ^ iiteihander the two sheet metal plates, the plastic nut 1 ii £ tch is: | ^ iitgehertd pressed in and after applying the plate 4 a screw \ OTttxJh; the drill hole of the plate 4 is screwed into the thread Ib of the K ^ sMto! | fe ^ t ^ Ä ^.

in the case of the conical neck extension I.dTüi däs ^ Boh ^ locihltioeh "pressed in more firmly and after further anzdüehe'a the Sciirlrafee 2 pressed together in such a way that it creates a flush Afcs; c1blli & Jniijk ^ .Platte, ^ i | ^ det. at the same time the tightening of the sci ^ aube ^ 'e% ^ Si ^ i | ciniiig_des thin wall part Ic of the plastic nut, so the ia the form of a -Wfttstfes shown in Figure 3 l £ f äa the wheel of the borehole 3a is pressed. the plastic nut X ^ -is. ^ önmehr.bel further tightening the screw 2 with plate § ^ g mäJB Figure 4 are connected and at the same against rotation Gesit ^ irt / .pabef exerts the thread Ib against the screw 2 a certain Srfirtieff ^ a ^, sib -ta% atif a FediirBicheruag

or the like be waived ^J k8fiäi ^{^:;} iM ^^ k% I ^ ÄiÖH © hr a # sh, 'da the

Plastic nut 1, like figure §-Α | ^; / ^: ^ ΐ ^^. '| 3Ρΐ' the sheet metal plate is 3-anchored, the screw.wii ^ # '1 | ^% tl ^ <^ loosen ujtdvz.B, · another object with the pla ^^> 3 ^^^ j ^; 'fieirs <Äraubjtt / F ^ r- ¹ these'

'· ..: ■. '' - ■: --r ^':' '■''· .. ^ f ^' Φ ^ ^ ^ ^φ0: '· ■■■■, ■■ ■■ - .. ■■' ■ .: '■ - ■ · ■ Screw connections can be used in standard trade. Ever

according to the type of assembly requirement.kfi ^ peir. ^ wllfefehe Halfftnsaiz Id protrude beyond the structural element 3.,, ^ 'di ^ e ^ m ^^^. b' forms ρ> ίφ. ' _? by circulation of a second component ^ ürid Äiazie "eh of the screw 2 between the plates 3, 4, ^a:; Wjöt ^ '^^ ΑΑοΐιί ·· the · effect of a'

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additional washer alt ^ cfeeiSe 'fÜ ^ cable insulated bushing büdet. In the law `` Z \ i -) ^ ksumt ^^ ot? IcÄi; ujj ^ n. '^; does the proposed ^{device have the ':} grofisn ;; Vo? ^ || 5 | ^ iei' _se ^ iir '' simple. ^; ; Handling under - elimination of '/ zu ^^ llcli ^'& listruktioitsteilen-unter ... Avoidance ofTierkantböhT4 & ^^^ äje> * ^^ i | l ^ & plusi | ^ borrowed safety devices as thiehsicÄw? «· ^^ • | ür _i 'aaj ^: ^ i ^ stigtlagselement.

Claims (1)

Claims: 1,} Device for connecting components, especially thin ones Sheet metal by screw and nut, characterized in that the screw nut (1} consists of Xu ^ sistpff. 2,) Device according to claim i ,. , characterized in that only the part of the screw nut (1) facing away from the screw head (6) with a thread (Ib) is vers.e.höa .. _: 3.) Device according to claim ί or 2, characterized in that the screw nut (1) has a conically enlarged neck (Id) has, which is expediently on the outside with a Riffeiung is provided and has approximately the same wall thickness as the thread-free part. 4.) Device according to .Anspruch 1-3,. Characterized in that the Screw nut is made of nylon (R); - 5.) Device according to claim I-3 ,, - characterized in that the Nut (1) is designed as a Hofrldöbel. Method according to claims 1-5, characterized in that the free (indefree Part (Ic) is so thin-walled that it is when AnzHg of the screw bolt (2) "one to the borehole edge (3b) of the Component pressing bead (te) forms. 7.) method zsrni connecting from. Components according to one of the preceding Claims, thought characterized in that, in particular, the thread-free Part (Id) of the robbery (1) after being inserted into the Drill hole (3a) of the component (3) by tightening the screw bolt (2) a compression> r moves and'dampers a non-rotatable, captive Connection between the screw nut (1) and the Component (3) is achieved, " 8.) The method according to one of the preceding claims, characterized in that the threads <Sar plastic nut (1) when tightening the screw % ^ press firmly on the threads by compression and thus', a counter-loosening οβϊ · screw vibration-proof connection is established. '■ 9.) Method according to one of the preceding claims, characterized by dadusr ^ ch, that at over the component Jf3.) protruding W'v *