DE6605348U - SELF-LOCKING JOINT - Google Patents

Description

Patent attorney

Dipl-lng. H. Lsmprecht

Munich 5 5-4

Corneliusstrasse 42

NOTE: This document (description and claim) is the last one submitted; it differs from the wording of the documents originally submitted. The legal obstruction of the deviation has not been checked. The originally submitted UnterFogen are in the American files. They can be viewed free of charge at any time without proof of legal interest. On request, photocopies or film negatives can also be delivered at the usual prices. G OU [6.69) DMtsdKi Pafentaart. Branded iteli "

Otto Mayer

j 7067 Plüderhausen

ι Mühletr-εSe 76

Self-locking joint

The Heuerung relates to a joint for automatically verriegelbarea ir. At least one Sehwenkstellung verriegelbare- to the at least two gegeneinander- a gereeinsame axis Terschwenkbaren overall \ directing share existing objects with an on

first joint part Tiewegiicn snge-braehtea- ± n his effective position with the wide joint part under the effect of 'Siner spring form-fitting in Single handle can be brought «and by a release lever movable into its circumferential position Bars.

Such joints can be an example of susg. rem en— klaproare uni eins elioaro Lei tem _s StSndsr imä frames of all kinds for the wage provision of Kral * 'feels seu ^ gitzc .. scjwaokbare Fsist-er, Liege— idbel, Cuiip i £ * zec'- ^: - -3 odor dergi. vsr ^ beiidet.

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A collapsible ladder can, for example, optionally As a leaning ladder, as a standing or trestle ladder, as a high seat for hunting and also as a work platform or the like and folded together like a ziekzaek be transported.

The aim of the furnace is to create a joint that does not have to be operated or held in dom after unlocking the T unlocking lever and which locks automatically. Furthermore, a favorable arrangement and shape of the unlocking lever and / or the function of the joint should avoid the risk of accidents and through an expedient design of the bolt and the locking mechanism, locking of the joints with as little play as possible txaö dacureh high stability and Rigid the Verr: egelui. guaranteed.

The innovation solves ^c: as a problem in that the bolt is assigned a Sperrhelel which · eil 3teht to the second joint in frictional connection and "positively locking detectable by a provided on Sntrieselunf.shebel driver during c eoocn movement in the ISntriegelunjsatellung and in blocking Eing ^ ii: can be brought into its ineffective ο-fcoiling with the I iegel.

Other features d. r innovation originates from the only. for the end of the series; the one in the drawing illustrated from. · .'i hrui- ^ aI-eisp: eic dur innovation in Verbi idun.2 't> ". I.t der. / · Ϊ́ spilk hon.

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JSE shows:

1 shows a multi-purpose ladder in a side view

in fact:

a) as a folded Leister.

"b) as a working platform, I

c) as assistant manager and

d) as a stepladder or trestle ladder,

Fig. 2 is a gel for a multi-purpose ladder according to Fig. 1 or any other "foldable" ladder "Baren object in radial section in a side view in stretched and locked Condition,

3 shows a gel: in another embodiment in radial section in a side view in FIG partially unfolded position with released j but not yet snapped into place *

Fig. 4 the gel]: according to Fig. 3 in another embodiment for universal use in radial Lehnitt in a side view in the extended and unlocked state excluded. with the unlocking lever,

Fig. 5 the gel :: in the borrowed according to Fig. 4 in Rad.ialsclr.itt in a side view, partially unfolded in the unlocked state,

a) when pivoting in the direction of the gexalt et η position,

b) at V.:rr:wsanken in the direction of the geatre. kte position (counterclockwise? nn) _t

ö.Qv gels according to the F ^- J. £. 7 -: '■>, Ter.ci'ni. lür; -; r: dev T..j.ri: .L- VI-VI in Ii / -. ;,

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7 shows a joint according to a further embodiment in radial section in a side view in the stretched and locked state _s

Prop. 8 the joint according to FIG. 7 in the unlocked state and

Fig. S the joint according to Fig. 6 home wasting towards the unfolded position (clockwise).

According to FIG. 1, the multi-purpose ladder consists of a plurality of straight ladder parts 1, the spar ends of which are connected to one another by joints 2. As can be seen from the drawing, the joints 2 are arranged in such a way that they can be opened alternately in opposite directions. They are similar to those in Pig. Preferred working positions shown can be locked against each other and unlocked by means of unlocking levers 3. In particular in Fig. 1b it can be seen that the unlocking levers 3 of the central joints 2 are arranged in such a way that in their locked position they lie closely parallel to the joint leg or spar, so that, for example, when working on the work platform, unintentional Step on the unlocking lever 3 < ^j - the joints cannot be unlocked because to unlock the unlocking lever 3 weighed from the spar must be pivoted against the vertical.

According to Fig. ?. there is such a Golonk from a erüten Gelenlctoil · - and a ^'T wei ^J; e: i joint part 3? die ("urcri eine Hi jfjolzen 6 urlteinaTirik ι \ ertvjic en

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are. Both hinge parts 4.5 have concentric around the Kietbolsen f * Gaueif-shaped formed side parts 7 »δ and pass through to their inner or Outer sides "fastened reinforcement disks 9 reinforced will.

They have side parts 8 and reinforcement disks 9 of the second joint part 5 on their circumference according to the desired working positions according to Jig. 1 arranged open-edged, slightly wedge-shaped recesses 10, the bare sides of which run in approximately in the radial direction to the hinge axis of the Kietbolzens 6 ν. Also in the side parts 7 and their reinforcement sections 9 of the first hinge part 4, an identical recess 10 is arranged in the range of motion of a bolt 12 mounted on the hinge part 4 ralial to the hinge axis of the rivet bolt 6. For the unfolded transport position (according to Pig. 1a), a special recess 11 with a flattened, slightly rising side flank is provided on the side part 3 for the automatic lifting of the bolt 12 when the ladder is unfolded. Appropriately, however, two types of Golenko 2 are installed in the ladder, of which the joints arranged in the ladder rail except for the attachment: elite position (Fig. 1c) only the recesses IC required for the stepladder division (Pig 1d) needed and the other gelarike only dis iiir the work-.büh.ae-.S; el! ung (Fig. 1b) required exceptions 10 boo'.trcn T: o-nfachor "/ eise wi? l dioi: iac -ml orrcxc-it, d; -. 2 fl ^; '.i- äi t; ^T. i ι er ^ clcn.';'. · zv' ^ ic: 1t. '. Vc rijtdrku -. 'i ^ i-ior: o: .b τ ⁿ ve <· £ β: · el "» or v> i :: I πΐί ~. · 2) \ _ ^ ir c ^; . · - jil "ii l ·

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660534

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Lock positions required recesses 10 and 11
"have, while ede do not have the additional attached to the side parts 8 for this locking position
cover required recesses 10.

Between the side parts 8 of the second joint part 5
there is a locking lever 13 on the lifting pin 6
and a spacer sleeve 14 'on which the release lever 3 is pivotably mounted. The latch 12
is under the action of a spring abutment 15 on the first joint part 4 is supported
Spring 16.

The Eatriegelungshcbel 3 has on his

Lock 12 facing side a radially rising

eccentric curve 17 ffiit end stop 18, as at '

Swing out the release lever 3 counterclockwise « ₍ clockwise the bolt 12 against the action of the spring

16 pushes into its unlocked position. In the T.

between the Eada22 £ c3ilag 18 anä des Tiflgerauge äes ^

ISntriegelungshebels 3 this also has a u

of the locking lever hits the locking lever 13 and τ-

while a provided on the locking lever 13 ^ ase 20 ^v j

under the bolt (Fig. 4) on the locking lever 13 J *

there is also a recess 10 and at L.

of the "nose opposite flank en Lifting l- an extension 21 B ^ iB. Eatriegelung3 releasing the lever 3 wirä he (V raw can spring-biased latch
's 2 over the curve 7 z-pressed until the bolt

at the nose 20 .. stops and thereby the penetration ■

changed into the underneath.eride expansion |

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Without actuating the unlocking lever 3, can Now the second part of the link is pivoted in relation to the first, e.g. in a clockwise direction, whereby the locking lever 13 is rotated as a result of a force-fit friction system on the side part 8, until the Ansclilagve:. * extension 21 rests on the latch 12, in which position the recess 10 of the locking lever 13 releases the bolt 12, which is under the Effect of the 3? ed he 16 towards the rivet bolt 6 is printed until it rests on the circumference of the side parts δ. (? ig. 3). The bolt has 12 also partially swiveled the release lever 3 back. When swiveling the second joint part in water 5, the bolt slides along the circumference of the side parts 8 until it is in the nearest one Can snap into recess 10 of the side parts. This makes the unlocking lever 3 complete pushed back into its starting position, whereby its protruding from the joint, on the release lever 3 correspondingly arranged actuating lever 22 in a substantially parallel to the joint leg or possibly standing position reaches the ladder stile.

As already mentioned? / Urde, is the operating lever for "unlocking from the ladder stile or leg of the first joint split; 6 in the direction of the vertical to pan to '.jeiterhola. When swiveling the second joint part 5 counterclockwise lead) t <l: ". e nose 2C 30 long under the bolt 12, bio by a small backward swiveling movement in the clock the sprinkler lever 13 with its nose 20

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as a result of the aforementioned frictional entrainment strikes with its stop extension 21 on the bolt 12 (FIG. 3) and at the same time his nose 20 releases the bolt 12. The bolt 12 can in turn now on the circumference slide along the side parts 8, Ms it snaps into the "closest recess 10. Thus the joint also in the counterclockwise direction beyond its extended position (Fig. 2, 4) can also be pivoted to then the described, required for determination Backward pivoting movement in this stretched position. Being able to perform is either on the second G-elbow part 5 is radial in the area of the joint Bend 23 (FIG. 5a) or on the first joint part 4- a recess 24 on the bent approximately at right angles xeil of the side parts 7 (Fig. 3, 4) provided, so that the angled side edges of the two joint parts do not interfere.

Should this bend 23 or recess 24 at disturb the closed external shape of the joint,

Side parts 7 of the first joint part 4, spring-loaded, two-armed pivoting lever 25 mounted on bearings be avoided, one lever arm 26 under a hook-shaped extension 27 of the locking lever 13 engages and with its other lever arm 28 through a control cam 29 provided on the side part δ of the second joint part 5 shortly before the extended one Joint division de. *, Art is pivoted that the Locking lever 13 is pivoted with its aase 20 zrcrüekgesehwird and in the g <stretched GeXenklags (Pig- 2} die

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Nose 20 released the latch 12 to snap into the recess 10 below Has.

The described embodiment for multi-purpose ladder thus makes it possible that when pivoting the joint parts 4 and 5 counterclockwise from the folded to the extended ladder position optionally one or more recesses 20 can be turned over without the bolt 12 snapping into place there.

Another embodiment example, which also enables the optional over-turning of recesses 10 when pivoting clockwise for universal use of the joint, is shown in FIGS. 2 and 3 are provided.

'is
On then Fietbolzen 6_. However, between the spacer sleeve 14 and the other side part 8 or the other side of the unlocking lever 13 opposite, a second locking lever 30 is mounted, which corresponds to the locking lever 13! "and rests positively on the side part 3. This second locking lever 30 also has a corresponding rabbit 31 * die a slightly smaller distance from the Selenkaehse than the ITase 20 det first locking lever 13 and on the side of the bolt 12 facing away from the bevel 2C there is also a locking love 30

u g 32 provided, fiie one

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has a much greater distance from rabbit 31, than the attachment extension 21 from the rabbit 20 and the one in a} a? rY8n ± shaped handle 33 into the the bolt 12 z-ugecrdnete recess 10 of the wide locking jib 20 passes over. So that the mode of action of the second locking lever 30 is clearly visible, is in Figs. 5a and 5b, the stop extension 21 dea locking lever 13 broken off and FIG. 5b drawn without unlocking lever 3.

If, after actuation of the unlocking lever 3 Fig. 4, the bolt 12 rests on the Ns.se 20 of the first locking device 13 as described, when the second joint part 5 is pivoted clockwise [Fig. 5a) the first locking lever 13 wnd the second 2 Sparrhebcl Γ0 swung, until first the nose 31 has reached your crucible 12 and the Ansehlagverlängerurg 21 rests on the bolt 12, the latter before. the ease 20 has been transferred to the lower nose 31 opposite the nose 20 in a smaller distance than the width of the bolt 12, and therefore the bolt 12 is still held securely. The wider joint 5 can now optionally be swiveled out via the closest recess 10 in the side parts. During the subsequent swiveling back counterclockwise, the bolt 12, as already described, is released from the nose 31 and snaps into the next recess 10 the side = part a ₉ because the higher nose 20 strikes the bolt flank urd therefore the bolt 12 not

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can lock again. Here, the bolt 12 also has the second along the curved flank 33 Locking lever 30 -swiveled back into its starting position.

However, after actuation of the release lever 3 in Fig. 4, the other joint part 5 against the Swiveled clockwise, the second locking lever 30 is taken with frictional friction, until its stop extension 32 is also on the latch 12 strikes. During the subsequent swiveling back movement the first locking lever 13 and the second locking lever 30 are pivoted with frictional entrainment, until the rabbit 20 has released the bolt 12 and this on the outer edge of the side part 8 to next recess and snaps into place there. Since the distance between the rabbits 20 and 31 is much greater than the width of the bolt 12, can do not push the cheese 31 under the latch 12.

If necessary, know how to improve the friction aitnahiaa the first locking lever 13 and the second locking lever 30 according to FIG. 6 slightly to the outside be bent and ran resiliently on the side parts 8.

A v / sit it execution; run ^ öbciopiol for sine universal Verwe.idun.i dt.r G-el * nke i ^ t in (.an Y ic » " Lit '9 presented, wci> e ?. ei · - ^ richcnd> : <. ± \ c ei it dm ?, \ y.2Yei u3 jziffei-. ν, ΐο ■ 'c. df; £ ii;, · "" olr 6 Wrcuiion uird.

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The release lever 3, however, is on one second rivet bolt 34 mounted on the first joint part 4 and has as an extension of his shorter curve 17 has an end stop 351 on the spacer sleeve 14 in the locked state of the Joint strikes. In addition, the unlocking lever 3 has an additional actuating arm 36 with two stop surfaces 37 and 38, with the stop * "during the end phase of unlocking surface 38 the first lock lever 13 and the second Locking lever 30 wasted under the Ritigel 12 and the stop surface 37 the locking lever there on one prevents further pivoting movement. The first locking lever 13 has its recess on both sides! 10 two noses 20 aid 39 and near the nose 20 an Anscilag 40. Through this stop 40 on the one hand and through the stop surface 37 on the other hand, the pivoting range of the symmetrically formed second locking lever 30 limited, which has a bolt support surface 41, which has a has a greater radial distance from the hinge pin 6 than the lugs 20 and 39.

When the release lever 3 is pivoted out by means of an actuating handle 22, the curve 17 the bolt 12 is pushed back into its unlocked position and at the same time towards the end of the pivoting movement the second locking lever 30 together with the first locking lever 13 in the direction of the locking axis by means of the An3Chlagflache 38 is pivoted on the actuating arm 36 and through the stop surface 37 with it the bolt stopped in its movement, whereby the bolt

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support surface 41 den. Latch 12 against the pressure of the Cedar 16 holds back (? Ig. 8).

Now the second hinge part 5 clockwise tiher swiveled out the desired recess 10, ■ is due to the side parts 8 occurring Friction of the first locking lever 13 laitgenonsaen until he at the cheese 39 rests on the bar flank. In addition, the second locking lever 30 is pivoted, "until it rests against the shift lever stop 40, with (Pig. 9) the bolt from the bolt support surface 41 is passed to the lower 3ase 39. During the subsequent backward movement: 3 pivoting movement (against the In a clockwise direction) the nose 39 releases the bolt 12 to snap into the desired recess 10 the S ei-needed part 8.

When pivoting in a desired recess 10, which is in the pivoting direction, is proceeded analogously counterclockwise. Here, the bar 12 is transferred to the cheese 20 and then likewise released during the subsequent pivoting back movement.

Both the Pig. 4 additionally not shown to 6 and after Deii FIGS. 7 to 9 with a torsion spring s are provided which tends to pivot into the folded position, the hinge joint parts 4 and 5. This arrangement allows after actuation of one of the unlocking heoel 3 coupled to one another on the Grelenköi au

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on both sides of the seat, the adjustment of the joints arranged opposite one another on the backrest by bending forward or backward, both hands can be left ata steering wheel.

Due to the various application areas, there is a very wide area of application for the described, automatically lockable joints 2, which are used, for example, in the adjustable or collapsible design of convertible multi-purpose devices, objects, tools, devices or the like, such as racks, sales or avls position stands sports and camping equipment, seating and LiegemÖbeinj Yerwandlungsmöbeln _f Fensterflügel- and "rühbeetfenster locks, one teigtreppen _r adjustable. 3? shr = zeugsitzlehnsn, adjustable flaps or the like advantageously use finSea is & mea.

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the bearing bolts 34 of the locking lever 3 J

j as a connecting shaft between the two. geXeolcen ex- j

forms his, on which this Satriegelun ^ shebel firmly | are appropriate, if necessary, for example as a lead | can serve. Preferably 'is then only | a release lever is arranged on one side. g The connection time can be given by a protective tube | be. The rivet bolt 6 can be divided radially and designed as a hollow rivet at least on opposite hinge sides, whereby if necessary, the connecting shaft can be mounted in its bores, or the hollow rivets of both joints are designed as a connecting tube in which the connecting parts are mounted »p _a

Claims (14)

Patent attorney Dipl-Ing. H. Lsmprecht 8M0rdien5 ß ComellusstraSe 42 - 1!) - P04 scimtz claims s 1. Self-locking joint for at least a swivel position lockable, from at least two against each other around a common Axis swiveling gelenic parts "existing objects, with a "movable" on the first joint part attached, in its operative position with the second joint part under the action of a peder positively engageable and by an unlocking lever in its inoperative position movable bolt, characterized in that a sprocket lever (13 »30) is assigned to the bolt (12), -which is in frictional connection with the second joint part (5) and through one on the release lever (3) provided driver (18,38) during its movement into the unlocked position positively detectable and can be brought into locking engagement with the bolt moved into its inoperative position is. 2. Joint according to claim 1 _r, characterized in that the release lever 3 is pivotably mounted on a spacer sleeve (14) which is arranged between the side parts (8) of the second joint part (5) on the hinge axis (6). 3. Joint according to one of the preceding claims, characterized in that the bolt (12) is approximately radially to the joint axis (6) displaceable in the first joint part - 16 - - 16 - 584 (4) is mounted and at least one recess (10) is assigned to it on the inside of the lower joint part (5), into which it can snap in its effective Asian position and that the bolt is coaxial is mounted pivotably to the joint axle and has an eccentric control cam (17) assigned to the bolt. 4 · Joint according to claim 3 »characterized in that the eccentric control cam (17) has a curve «Has a self-themed slope. 5 · Joint according to claim 4, characterized in that an end stop in the Sad area of the control cam (18,35) is provided, which is the disengaging movement The locking lever (3) is limited * 6. Joint according to one of the preceding claims, characterized in that the unlocking lever (3) has an operating lever projecting from your joint (22) which in the locked joint positions is substantially parallel at a small distance from one of the joint parts (A) and to Unlocking of the joint part can be pivoted away. 7. Joint according to one of the preceding claims * characterized in that the lock bolt (13) is on its end facing the bolt (12) is fork-shaped and rotatably mounted about the rivet pin 16 and in frictional contact with a side part (8) of the one joint part (5) on which the recesses - 17 - 584 (10) are provided, with both fork prongs protruding in the radial direction into the area of the bolt (12) in its unlocked position and with one fork prong facing the other fork prong (13) engaging under the bolt in its unlocked position Nose (20) is formed. 8. Joint according to one of the preceding claims. characterized in that the spring-loaded latch (12) has a wedge-shaped end piece, the wedge surface planes of which preferably pass through the joint axis run and that in corresponding recesses (10) on the second joint part (5) exactly, preferably free of play, fits. 9. Joint according to one of the preceding claims, characterized in that the two side portions (8) of the second joint part (5) and the associated Reinforcement washers (9) each ine special recess (11) with a flat, radial and in Direction of the further recesses (10) rising side edge for automatic lifting of the bolt (12) when opening the folded joint parts own. 10. Joint according to one of claims 7 to 9, characterized in that £ coaxially to the first locking lever (13) a fork-shaped second locking lever (30) is rotatably mounted, which is also in Seibungskontakt with a side part (8) of the second joint part (5) is available - 18 - • · t 504 and one cheese (31) owns that of Jlase (20) on first locking cone (13) opposite and a slightly smaller radial distance from the axis of rotation however, has a somewhat larger one than letsterej en radial distance from the axis of rotation than the outer edge of the one provided with the recesses (10) Side panels (8). 11. Joint according to claim 10, characterized in that the second locking lever (30) of the nose (31) opposite fork prongs (32) has a significantly greater distance from this ITaee (31) than the corresponding fork prongs from the rabbit (20) of the first locking lever. 12. Joint according to claim 11? characterized in that the fork prongs (32) of the second locking lever (30) opposite the rabbit (31) merges into a curved flank (33) at the bottom of the recess (10) of the other locking lever ₅ duroh which when the bolt (12) snaps into place a recess (IG) of the second Gelerurueils (5) the sweite locking = lever in its starting position before. Unlocking is pivoted back. 13. Joint according to one of claims 1 to 6 _f, characterized in that the dsa bolt (12) facing end of the second locking lever (30) is formed butt with a bolt support surface (41) whose radial distance from the axis of rotation is greater than the distance from to each fork of the first. - 19 - - 19 - 584 Locking lever (13) trained cheese (2Οί39) from the Axis of rotation * 14. Joint according to claim 13t, characterized in that that the bit locking lever (3) on the first GelenJrfceil (4) on a special sheet <34) rotatable is mounted, which is at a distance from the hinge axis (6). 15- joint according to claim 14 _f, characterized in that an adjusting arm (36) with two stop surfaces (37,38) is additionally provided on the Satriegslungsheljel (3) which are suitable to water the locking levers (13 »30) in the end phase of the Sitriegelss Position the latch (12). 16 hinge according to one of the preceding claims, characterized in that on the first hinge part (4) a control lever (25) is pivotably mounted, soft, aa second hinge part (5) attached Cheese (29) is assigned to that before reaching Q.Q3 ßeÄSHJES ΈΏ.% this control lever comes into engagement and that on dea Sperrfcebel (13) * which has a protrusion (27), with which a projection (27) is arranged opposite to the direction of the locking movement of the Isitrisgelungshebels (3) the control lever comes into single grip at its second joint part from the ease as opposed to the action of a pivoting movement caused on the control lever in order to pivot the base (20) formed on the locking lever out of the area of the bending iron. 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