DE6917832U - TENSION SPRING - Google Patents

Description

atentairosl! dr. W & ^. I wAUKiU _t , ... .......

4 DoGSELDOiF "" ■ ·

32 Mrfon 325? Ό4

52 59 A 64 H / S Düsseldorf, February 2, 1969

- Applicant :! 'Irma Diplo-Ing.K "Weinhold j> -. G",

4o43 Holzheim "bei ^ euss / -RhId., Ereitzweg S

"Tension spring"

i The subject of the registration is a »tension spring., the

I in their special design for closing the bowls

^ to serve as a double clamp.

ρ The essential ^ design feature of the invention

I tension spring is that a sin of tension spring

I for connection to an earner shell of the double terminal

1 or with a special one for clamping the shells together

I serving part, e.g. with a special clamping lever ^

I serving eyelet, while an im on this eyelet

I. unstressed state, arched part of the tension spring itself

connected, which sucked shallower in the depleted state will * The most important feature is that the

^ free end part of the tension spring e.g. approximately trapezoidal

so that the hook-shaped brew of the tension spring formed in this way is hooked into a - ^ - a.tflache of the ochalenhulfte of the - ^ oppelklemme opposite this end - gefiüx-rtj 2 · 3 · or hooked into a corresponding ± 2i of the do " Dpelkle3HHe insured slot inserted ~ Α'33ΰα.8ΐι fcsozij so that.ss in this - ^ division the Sa-stf eder ~ £ sb ± m »icäiüessea der 35opDe3üensts ₃ sB when the SOanefedeir- fes" fe ^ eiiaü; eiiiaü . äie ° T3aimfeder under

■ »I t · I«

• ν * Df f * · #

- 2—

vigorous closing of the double clamp extended will.

The shells of the double clamp, for which such a tension spring is used, can be made of malleable cast iron or sheet steel. In the case of an embodiment made of malleable cast iron, a slot receiving the hook-shaped curved end of the tension spring can be cast into the malleable cast iron shell itself. Instead, a corresponding recess into which the free end of the tension spring is inserted can also be provided in the malleable cast iron shell. If the shells of the double clamp are made of sheet steel, a slot into which the free end of the double clamp is inserted can be punched _{into the end of the shell, for example,} or by attaching an intermediate link that connects the two flaps of the shell end, e.g. a bar, a connecting rivet and the like, are formed »TTm to fulfill their dual purpose as a closing and tensioning spring, the tensioning spring, which is expediently made of 3 stainless steel, becomes in its strength and in the dimensions of its individual parts, taking into account the closing to be achieved - Forcefully executed.

In the measurement of the width of the ^ "eder one adapts itself expediently largely to the width of the shells of the double clamp. In every year the - ^ eder must be in the normal arrangement between the two surfaces of the tensioning lever

.gen, so that their width is a few millimeters less

than the width of the shells of the clutch. ||

However, the possibility can also be considered, ^

that the clamping lever over the entire width of the coupling s - engages, so that in this case the width of the spring can also correspond to the width of the shells, while ;;; ί

• it must be kept narrower in the upper part of ete'as »„; ,, _? ; ^] '- * ■ In this case one would have removed a feather shape

set width, which is somewhat larger in the area of the lower shell than in the area of the upper shell. Furthermore the width of the nib can also be varied taking into account its strength »

j Relevant for the force of the spring, i.e. for the

\ Sehales the Boppelkle ^ e applied S-eslies "krsit is else

Function Eder both the width of the ^J -As of

j their strength, i.e. the spring cross-section, depends. Sine

j iJ thicker spring ~ ksniz. at bestissater before written

Visual power to be narrower than a feather of lesser bending ",

In any case, the ^ ederquersclinlti; so sized

that the ifiniEum of the ztbs -2i2sainmeiLhal1; en der Klem-

menhalfiten aueli at bigger sirriebsdrSckeri erioxdsr— s
liclien SclLiies-skrafi; , ssisäiHrleistei; lsi; *

n. the 2raxis have the widths of the range from

about 15 HH ^ JLT small clutches, until si * 4C wsn. and more for large couplings, proven to be suitable. Spring strengths of approx. 0.5 - 5 ssi can be used. The eyelet 1 of the spring can "with small clutches or springs ZTseckmassig a diameter of about 4.0 - 5.5 eh, with large dimensions a diameter up to ziz 12 today -

• - "The other dimensions result from the enclosed

Drawing.

In this figure 1 represents the point of application serving spring in side view.

For example, Fig. 2 shows the attachment in side view -and function of a spring designed according to the invention "

a double clamp made of malleable cast iron or sheet steel represent.

In Figure 1, the reference character 1 denotes the loop of the spring rolled around the iTiet or bolt of the tensioning lever * To this; This is followed by the curvature 2, the sadius of which must be large enough so that the spring can, when tensioned, easily arch over the bolt 9 connecting the tensioning lever to the lower shell of the double clamp. The free band part of the spring is characterized on the one hand by the approximately trapezoidal bulge 3 and the hook-shaped bent end 4. The arch 2 merges z \ veckmr.ssig over an oppositely curved part 5 into the trapezoidal bulge 3. This opposing curvature 5 significantly strengthens the suspension This makes the spring more elastic

In FIG _o 2, reference numeral 6 designates the serving for connection of the spring eyelet 1 pin or bolt of the clamping lever 7 * The the Spannheoel 7 connecting with the lower coupling half 8 bolts, over which the curved iDeil 2 of the spring places is denoted by 9 _o The hook-shaped * "■ ''" ^ / - bent end 4 of the spring is inserted before the assembly of the coupling - Ϊ in a transverse slot 10, which is in the. Sheet metal of the / "■ 'upper coupling part 11 is provided.

, '-' · '.''■'. After the spring has been inserted in this way, the - ' 1 \' ·. Last one, which holds the two coupling parts together, _{becomes "fc 3"}

'' "Hinge pin around which both coupling halves can be pivoted should, 12, introduced and specified, e.g. riveted »

The clutch assembled in this way is now, so _; , encompassing the tube, in the ready position, so that, after pulling up a tube, only the clamping lever 7 needs to be turned over in order to close the coupling halves using the spring force.

In Fig. 2 it is shown, for example, that the main pivot pin 12, which connects the two coupling halves, with its extended end in an elongated hole 13 with the one Pipe 14 connected flange 15 is mounted. This kind the connection of the double clamp with the pipe, in which, if necessary, an axial displacement by further means the double! clamp can be excluded, however, is for

- C -

the described application of the Eeder "when closing the double clamp is not absolutely necessary »You could the double clamp without connecting the pin 12 with the Flanscn 15 also simply as a freely rotatable clamp on the Eohr 14- arrange, or another type of connection ^^ Wänl ^ en ^ as ^ wi'e ^ they '^ inil ^ ig. ^ Zfshown ^ sto "' -et; -"> ■ == ^ ™ », f ^

Ii , J-, ¹ , i * ^f i.

-I ·

j * i *. -

ι · ι; 4 ^ ₊ H '

Claims (1)

Protection claims; 1. Spring zvn closing and opening the ziar attachment of a smart ehs on a Sohrstüek serving double clamp, characterized in that the at the end of a shell or on one. The locking lever attached to this end of the neck shell is rolled up like a "^;""- - ^ -"'like the end of the double limb, while the adjoining! part of the? Double clamp arcuately curved and the end of the - '-'' double clamp bent trapezoidally and at the free end is designed hook-shaped. 2o spring z-to close the shells of a double clamp, ^¥ _t ,, those for attaching to an ear end. Hoses, characterized in that the double clamp made of sheet steel with a thickness of about 1 -2.5 mm, e.g. 1.5 mm. 3. Spring according to claims 1 and 2, characterized in that that to the loop-like rolled end of the double clamp, the one for connection at the end: a shell of the double clamp serves, a curved part with such a curvature (of about 6 - · 155 mm) connects that the spring is loosely around the G-pivot bolt, which the clamping lever with the lower half of the double terminal connects. 4. Spring according to claims 1 to 3, characterized in that Äass with a double clamp to be ordered from malleable cast iron, into the shell to be grasped by the end of the peder Depression is cast, under which the curved JTederende ^ estedct is. 5. Spring räch claims 1 "to 4, characterized in ₃ d _ass ΐ) βΐ application of the peder with a double! Clamp with a shell made of sheet steel in the end of the dsat free peder end opposite shell punched a slot for inserting the curved peder end or is formed by attaching a web or a rivet between the ends of the splash of this shell. 6. i'eder according to claims 1 to 5, characterized in that that the width of the suitably made of leather steel Spring of the width of the shells of the double clamp is dimensioned accordingly in such a way that, with a normal arrangement, the spring between the two surfaces of the tensioning lever lies, oo that their width is a few millimeters less than the width of the shells of the clutch. 7. ^ eder according to claims 1 to 6, characterized in that that with the clamping lever reaching across the entire width of the clutch, the width of the spring is offset is designed by making irc the upper part somewhat narrower is held as 4es in the lower part. • • ■ • β ·· 4 « 8- Spring according to claims 1 "to 7, characterized in that the spring is dimensioned accordingly in its strength as in its width of the he ferd.arliei.sii BslaHBSskxa. £ ± so that the minimum of the clamp halves also" at The closing force required for the greatest operating pressures is guaranteed. that for small clutches springs made of spring steel with widths of about 15 mm, for larger clutches up to 40 mm and lisi Fsäsrs "feärksji of. approx. 0 - 5 ~ 5 mm related will". 10 «Spring according to claims 1 to 9, characterized in that the eyelet (1) of the spring for small couplings or has a size of approximately 4.0-5.5 mm, for large dimensions a Purely size of up to 12 mm get 1T832 4y 9- spring according to claims i to 8, characterized in that