DE1914446C3 - Forces transferring rigid connection of metal profiles, especially for furniture, e.g. frames and aquariums - Google Patents

Description

The invention is based on a connection of the German utility model 880 508 known art. As in the generic term of the claim stated, st.

However, it has been shown in practice that even if the insertion ends of the support arms have a bevel, unfavorable deformations of the pipe walls occur when the support arms are inserted into the pipe interiors. On the one hand de pipe ends are conically widened and on the other hand, seen over the width of a tube wall - vault by the present invention is the task to be solved, compounds of the above-mentioned t> ^c "r ^a _{h the} German Gebrauchsmusterschnft 08 become known kind so far to ver _{that when. a} favorable assembly possibility ° P ~ '' guidance for exact axial installation one ο _{efe unstjge} strength ratios

unu_u _disruptive deformations can be achieved

Avoidance

the. ^ Task are in the invention

Z-ur uo Bj, of _the claim indicated the '™ _G ^, _tungsme rkmale proposed. ^D c ^ become known per _se from the German utility model, on a single step ^ »» Longitudinal grooves and grooves - al-

<s U ^ue ™ '" _{inem for} % _a glue application beforeJ" ™ ^ _p "| L _el _. to interlock.

λ ,, fterdem it is "hrift ι 777,114 and the German Patentsterscn" by the German utility model _{bej "the Zusamm} enpassen of bolscnriri o_ ^ ^ _Bohnjngen bekanntgeworzenari g ■ - _{external flat} en the bolt-like the k.pper · aui ^ ^ ^ _{Push in the bolt} .

leiie - -. _Bore itself into the Bohrungsng η ^ ie ^s _{ierbei, however, are the} others

"^" ^^ ^ Ηη is totally different, techniscnen _d ^ _ate connection are at

»Ei dw e BB smooth surface

the A ^ jnHacn _L * _{nulen are} limited.

J ^{hurries from} . ° ™haben ^ _ne " _{There are smooth surfaces-} ^ s are al". Λ «™ ^ _{through the longitudinal grooves}

er ^ ^ ^{lachen ü} _D - _longitudinal grooves on the inner surfaces »erc,; _b * _{meta files are so on} .

chen der / u _{d ß { when installing in}

ordered ^ and ° ^ ^es ^^ _n ^a _e i _ndringen . ^DLC. ^ J ^ _n V _rg 1bf s "ch a good ^ EADERSHIP in the axial direction. The ribs and grooves are designed so that the longitudinal ribs in the grooves cause information in the not smooth flat parts

the ^^ ¹ ^ ™? ^

.5

30th

45

50 J ^ Jg i _{Veise wi} ^P _{rd crstens} a seat causes wml · A ^. ^ ^. ^ ^ ^

f _n ^ r outer surface of the profile tubes irregular-

at the ^A "^ ⁿ " * ^c - ". ^t , _{second e} in more precise geomerhanden sndzwcuense g β ^

! L ^^ Sund thirdly, a sufficient number de parts reached

dei-solid ^ er ^ _ration elle manufacture

throaty advantage that manufacturing ^ ^Ch _V e _r ^g _binding cn parts within

^{in the field of}

racks for large aquarium tanks

⁵⁵

deformed areas. In addition, the risk of tilting is very high if you do not use the appropriate elaborate devices for parallel insertion are used, but in the On-site assembly is not an issue, as the fitter only needs the usual assembly tools carries with you.

pushed ^ ^e "· _zugesc hnittene profile pipes

Up ^ hummed uang ^ g connection will be ₀ t under Ve ^^ J _{pipe ends pas} .

* 1 «« βη. ^T he '^ ^ea | j _Tragges, ell united, so send hme.nreichen ^ u ^ J a _{"h at the} ^B so that ^^ ra" ^ _T

Stells with plate-shaped bodies made of plywood panels or plastic panels or with glass panes in order to make a furniture-like object out of it. Such support frames are e.g. for storing supplies, for producing special furniture and in particular as a frame for aquariums used. In any case, such uses are force-transmitting Connections between the individual pipe ends, the main load being transverse to the pipe's longitudinal axes he follows.

In the figure, a butt-cut profile tube 2 is on a support arm of the angle piece 1 The cross-section is pushed on, whereby the surface-refined, as a rule, therefore, the face is not anodized of the tube firmly against a circumferential shoulder or the edge 3 of the cube-shaped middle part of the connector 1 creates sati.

The lateral contact surfaces of the support arms and the inner surfaces of the tubes 2 are directed parallel to one another. The inner surfaces of the tubes have longitudinal ribs 4 of triangular cross-section which are directed parallel to the longitudinal axis of the tube.
The inner surface, i.e. the contact surface of the support arms, consists of a soft material, e.g. B. made of plastic of a predetermined degree of hardness.

The support arms have longitudinal parallel grooves 6, which are narrower than the cross-sectional shapes

ίο the mentioned ribs 4. Now the tube is with internal ribs pushed onto the support arm, then taking advantage of the transverse springing of the material the grooves a little larger and lay firmly against the sides of the ribs in the sense of an indissoluble

Link. Here, the restoring force of the plastic, i.e. the resilient elasticity exploited in connection with the deliberately exploited friction. It is generally not possible putting these parts together without application

to carry out such special pressing tools.

1 sheet of drawings

Claims (1)

Claim: Forces-transmitting rigid connection cuts off the ends of those that are protected against corrosion Metal profiles, preferably with a square cross-section, made of straight pipe sections Made of metal with parallel inner walls and using dimensionally stable connecting pieces made of plastic, which fit into the hollow spaces of the pipe ends with parallel support arms reach in sufficiently far and then without special fasteners such as screws, Wedges or expandable tendons and fixed without the use of adhesives are, with each link being cube-shaped Having middle part, characterized in that that the metallic pipe pieces in the to be pushed onto the plastic piece On the inside, a multitude of sharp-edged ones running parallel to the pipe's longitudinal axis on all sides Longitudinal ribs (4) have that these longitudinal ribs in relatively narrow, on the associated Support arms of the plastic piece existing longitudinal grooves (12) can be inserted ^ undI dassi d.c External dimensions of the plastic pieces in relation to the pipe pieces to be pushed on are chosen that the longitudinal ribs (4) be.m pushing on on the smooth-surface support arm of the connecting piece (1) under elastically flexible Material displacement deform.eren the longitudinal grooves of the connecting piece without the smooth ones To change surface parts significantly and the connecting pieces then only by means of frictional engagement and factory spring suspension. ic