DE1635760A1 - Raschel knitting chair - Google Patents

Description

PATENT LAWYERS
DR.-ING. H. FINOKE 8 MUNICH 5, 1 >'■

DIPL.-ING. H. BOHR Müüersiraee 3!

DIPL.-ING. S. STAEGER

Telephone: »26 60 60. 'O \ JD / OU

Description of the patent application of the company

OLUTBOM & KSMP LBIISED Goalville _f Leiceeterehire / England

concerning
" Raschel knitting chair"

Priority? t4. December 1965 ,, Bnglanä

s invention relates to Raechelasaschinen and "Kstt e axe göv / usually referred to v / erden ₅ and in particular" n ζτο? Division of single ¥ are ₀

Bin such KettenattihX comprising in combination wi in a needle bar ,, more perforated bars, each of which with a ijoihnacieln Sat2 are cast in v / elohe needles with pivoted Suugen, ausgerüatei; which are intended to interact with the latch pins * and have eyelets _P through

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BAO ORIGINAL

which the individual warp threads one of a warp beam removed chain are performed, and actuations and Tax uni uiig, through soft the Haclelbarre and the Such movements are communicated to the hole bar, so that the warp threads are laid in loops, that is, around the needles are laid, which the latter form from these threads laterally connected Maechenstäbchen of knitted Maechen » In the case of a single chain chair, there are adjacent vertical mowing sticks of knitted stitches laterally neither in successive nor in spaced apart located rows of lashes or "readings" connected

In the case of a conventional Raechel knitting chair, the Needle bar controlled by a camshaft and >> a vertical up and down movement to carry out the Real work. The set of latch needles works in the Towards a fixed gutter plate, which holds and carries the old goods racks during the knockdown process » Such gutter plates are complicated and expensive. The vertical stroke of the needle bar is usually in terms of the amount of the movement is set and a change in the amount of the discount movement usually occurs duroh Adjusting the gutter plate "

The perforated bars are made in a conventional Raschelvlrk-

109838/0295 ORiGiNAL BATHROOM.

chair and forward together between the needles » and pivoted backwards as well as individually laterally in offset in one direction or the other (both in front of and behind the needles), namely after the pattern requirements with changeable proportions

For a single-bed product, the movements have hitherto usually been how

1, The holes are used for the underlap necessary lateral movements offset}

2ο the needle bar is raised to its highest position;

3 ο the perforated bars are in the machine backwards versohv.enken, with the needles between the needle heads step through!

4c then the perforated bars are moved again around this to communicate the lateral movements for the overlap;

Then twist the perforated bars in reverse Correctly pivoted forward «whereby the warp threads wrapped around the needle shafts and left on the tongues;

6ο Finally, the needle bar is in its lowest position

1 0 9 B 3 8/0 2 9 5 BAD ORIGINAL

tion to create a new masofcen row and to cut off the old maechen moved ₀

Tuck movements are performed once during each camshaft "revolution, and for inducing the accelerations, delays and Verv / eilaeiten, dio were previously required to the SC) of the hole bars Wingen by and between the needles to allow ₈ had been complicated systems of cam operated Levers are used

The single side Veraatzbewe _f juiigen the Lochbsrren have been commonly reported this by a ^H Dawson "-Raci and patterns Chain] ', can be though constantly driven pattern wheels or cams verv / ends and are sometimes used.

In addition, a Rascbelwiring chair is only one with one Needle bed usually with a series of "/ on" containment plates equipped in the form of blades that are fastened in a horizontal rail, which rail is used for each row of stitches can be brought forward when the needles rise begin, and this movement is such that the blades enter between the needles and the goods through them hold that it is held at the level of the gutter plate,

. 4 .. 109838/0295

After the old scam; chopped off on the tongues the enclosure was withdrawn »um laying around the needles and forming wider stitches to enable »So far, the movement of the enclosure camra was carried out by a cam arrangement or eccentric and in a "certain temporal relation to the movements of the needle bar controlled.

Furthermore, a conventional type smacking chair is common equipped with complicated tongue distributing devices.

The object of the invention is to create an improved Raechel knitting chair, in particular for single-bed goods from new type of construction and mode of operation, in which certain of the moving parts are no longer necessary »as well as a machine of much simpler design and for operation at higher speeds than previously possible.

A further object of the invention is to provide one Raschel knitting chair of the type mentioned for the production of elastic chain chair goods, i.e. chain goods in which elastic warp threads inserted in

According to the main feature of the Raschel effect according to the invention "

~ ⁵ "" 109838/0295

j ,,, :. ·,.; " _f cc ^ S> BAD ORiOfNAL

etuhls can only move the perforated bars individually to make the needles for the individual warp threads to move sideways, i.e. the needle needles will not move backwards and forwards between the latch needles as before pivoted, and thus the laid warp threads through the latch needles can be picked up and grasped, a compound movement is communicated to the needle bar, the reciprocating and vertical and having motion components such that the needle heads have unidirectional motion run in endless paths, which are arranged in planes, which su the perforated bars are perpendicular and themselves are between the needles »

It is advantageous that each of these tracks Z is ₀ T. elliptical or nearly elliptical, the ^ art that they contain as somewhat wider at its upper end to its lower end, "

From this it follows that, instead of the perforated bars all necessary movements for laying the warp threads around the perform desired latch needles around as before, the latch needles in the machine according to the invention perform these movements themselves so that they rush laid warp threads catch by simple offsetting movements of the perforated bars can.

109838/029 5; ^ - BAD PAGINAL

By avoiding the conventional echo swing movement of the hole bars are avoided by this caused vibrations *

According to a further feature of the Raschel effective chair according to the invention, a suitably curved composition-forming plate can be used (verr ^ eplate) useful on a swinging one Part or ai vibrating parts are attached by which rods extend freely, which carry the needle bar and are operable to this the desired to communicate compound movement by which plate the expensive gutter plate of the well-known chairs is replaced,

For a better understanding of the invention, a itaEchalwirUntuhls invention is it to hand e ^ ner at ^ pielßv.eisen embodiment described, which the vorerwähnteii and v / ei tom features v / and the movements of the latch needles and guide needles necessary eist _r da »Catch the warp thread with the desired latch needles, are described in the following in connection with the enclosed echematic drawings, namely show:

Fig. 1 is a partial view of a Raschel Wirketrihls according to the invention from backwards;

109838/0295 BAO OHlGlNAt

Fig. 2 is an end view of the in Fig. shown chair "

Teilv -si.se in section after Sor Linia II - II in Figo '';

Fig. 3 is a diagram showing the egg-shaped path that every tongue nail moves?

PIg _n 4-10

a set of highly magnified Einaelansichten from the side, which show successive stages -lochnadel in the relative movements of a latch needle and an associated warp thread, point ₉ group; iit a warp thread caught and confused knitted by the Zungea »needle into a stitch ¹ -, wherein Figo 10 additionally represents the insert, an elastic thread, and

Fig. 11-17
“Before-the-eyes of tongue tape and punch needles

according to the side views according to Figo 4 -

In the different figures denote., Identical Be Engin numbers denote the same parts,

Fig- from 1-5 follows that of ^ia auptrehmen dee Wirketuhls 2 from each other, "located at a suitable distance

109838/02 95 BADORJGiNAL

vertical end frame members 2 and 3 has "which are shown with each other both by horizontal rods, as at 4, or connected by similar Rahman parts as well as by a flat horizontal plate 5 _p extending in the longitudinal direction of the machine." The rods 4 and plate 5 are arranged parallel to one another; _a 2i a place above the plate 5 _S but "between = half of the two upper rods 4 there is a further and particularly robust horizontal frame part 6 with a triangular cross-section ₉ where: l the apex of the triangle is directed downwards. the frame part 6 carries a laterally movable Loohbsrre 7 ^ of its angularly disposed surfaces 6a ', as is apparent from FIG _o 1 and is jedas of the opposite ends of the horizontal Eahmenteils 6 with two cheeks or flaps 6b formed laterally of the angularly arranged surfaces 6a ", these four cheeks ccler tabs 6b are provided with bores for receiving the opposite ends of two pairs of horizontally arranged and parallel spray pieces 8, along which the two perforated bars 7 are slidable." Each perforated bar 7 is parallel tubular layers 7a are provided through which the foundation rods 8 extend.

The lower horizontal edge of each such Loch'oarre is

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with recesses to accommodate aging (leade) 9 provided, which nao) underneath gerir- ^ tate perforated needles 10 wear. As shown in Fig. 4-10, each is a perforated needle 10 designed with an eyelet 10a at its lower end » through which a warp thread W can be passed »

Since the robust frame part 6 has a triangular cross-section is rigid and immovable, the perforated bars 7 carried from the inside cannot pivot backwards and forwards will. In fact, the Loci bars can only be grounded individually laterally, i.e. in the longitudinal direction of the machine Moved to and fro for placing under and covering v. earth. When the perforated bar 7 in front of the frame part in one direction is moved, the other perforated bar on the back of this frame part is in the opposite direction displaced * The execution by which these scratching movements of the perforated bars 7 can be brought about, bind in the upper parts of Figs. 1 and 2 shown «kit the left The end of each such bar is forked by a pin 11 inner end 12a of an actuating rod 12 connected. This rod extends horizontally through a bearing 13 on the outside of the vertical end frame part 2 is provided »The outer end of each rod 12 is provided with a cam follower roller R, which for the Zueam-

- 10 ■ *

109838/0295 ORIGINAL BATHROOM

The effect is determined by the appropriately designed circumference of a rotatable cam disc RC o a wieehen 5 ^e ^ ^em Lsger 13 and a perlerabut collar 14 rigidly connected to the corresponding rod 12 is a screw pressure

spring S arranged "

The tongue pin bar in the embodiment shown - for example generally designated by 15 - and a horizontal part 1lia eov / ie an upwardly directed lip 15b, both of which extend practically over the entire length of the case. The latch needles 16 are inserted in brackets 17 (leads) _s which are carried by Oberon part 15a and 15b are attached to the tongue eggs Liipe needle bar. The Ifc; uri, shaft 18 of the active stool, from which the latch needles 16 are actuated "tr". from deu it extends e% w $ p. ^ oli upwardly directed rod 21. The rods 21 carry the latch needle carre 15 and extend freely through guide bores 22a in plates 22 which are permanently connected to a common full shaft 25, the latter is below the Zungennaäelbarre 15 arranged and has the same Erv; ie this "The shaft 15 can also swing freely

- 11 -

109838 / 029S ΒΑΪ3 ORlOIHAL

gen, for which purpose legs opposite ends are freely rotatable to and fro within bearings 24, the latter being attached to the inner sides of the tertiary end frame parts 2 and 3. Therefore, the swinging axis of the shaft 23 extends in the longitudinal direction of the tongue needle bar 15 and parallel to dieeer _o The rods 21 also extend freely upwardly through relatively large openings in the plate 5a. 5

If necessary, the blocks with the. Bores through which the rods 21 freely extend can be completely separated from one another, in which case each can be provided with axially aligned pins, by means of which: it can be rotated _{or the like}

A common t-swinging came as a further A2 alternative Drill with pairs of aligned holes in place of the full shaft and the one connected to it Blocks 22 should be provided »

In the particular embodiment shown in FIG. 1, the shaft 18 carries a chain wheel 25 around which and around a drive motor chain wheel 26 a drive transmission chain 21 is placed. The drive arrangement is

- 12 -

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BATH ORIGINAL

in such a way that the Zungerinadelbarre 15 is communicated a combined movement, the back and forth The reason for this is that the latch needle heads move in one direction in egg-shaped paths, as shown at P in the diagram of Pig. 3 Well © 18 and one of the eccentrics 19 inclined, while "the ' The longitudinal axis of the oscillating shaft 23 is denoted by a let *

The line L represents the axis of one of the rods 21 and the upper part of this line, which ends at the path F, coincides with the position of the head of one of the latch needles 1 (5. When the eccentric 19 rotates clockwise and the A latch needle head moves calibration in the opposite Kichtun ,: ', dia correspond in the same Abetän- i the spaced-Umfangapunkte A, B, Q, D, e, F, Gr and H on this eccentric points a, b, c, d, e, f, g and h in the trajectory P. As can be seen, this trajectory has a similar shape as the cross-section of an egg according to its main axis,

An upward knitting plate (verge plate) 28, which is slightly curved in cross section, is attached to the

- 13 - 109838/0295

; VK, v ^ BADORiGINAU

Büok sides of the Blöok 22 attached. W "nn to dl" tongue needle bar 15 abwärtebev.sr ⁴ "? Therefore echiebt the Maschenbildnerplatte 28 the old M & surfaces on the latch needles 16 which old chasing the pivotable tongues close to new trickled vexation. Of course, the Maschenbildnerplatte 2C follows that eie to the of blocks 22 carried by the vibrating shaft 23, the vibrating movement of the latch needle bar 15 "

If, as is mainly intended, the chain chair fabric produced on the chain chair is to be incorporated, these threads, which are fed and controlled by additional perforated bars, can be 28 % at right angles or with a "still" via the Kaschenblldnerplatte More acute angles with respect to dits · are · placed · two such · perforated bars, which are arranged one above the other, denoted by 29 and 30 in FIGS. These bars are equipped with thread guides 31 for elastic threads and are mounted for offset movements in the longitudinal direction of the machine within standing supports 32, the latter being fastened to the upper side of the plate 5. At its right end, each of the perforated bars 29 and 30 is connected to a horizontal rod 33, which is calibrated by a

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BAO ORIGINAL

Bearing 34 extends outwardly, which is attached to the outside of the vertical frame part 3. The outer

re end of each rod 33 carries a cam follower roller R which gestalte- for cooperation with the suitable

th circumference of a crank disc RC determines iet _o Zwisohe :. the - ^ ager 34 and one connected to the pole 33 feet

2 which collar 35 a compression spring S is arranged. the Loohbarren 29 and 30 can possibly be more horizontal Guide rods that are inclined in Pig · 2 at 36 Positions arranged and provided slidable " In the arrangement described above, the inserted Elaetiechen threads have the goods holding function meet that used to be used by the Einlockkäiatnen or Ein-Bchschlussplatinen have been fulfilled. Such an arrangement therefore not only eliminates the need for a gutter plate avoided, but also a Einschlussplatinenbarre and the associated cam arrangement and the correspond the drive elements »

It should be mentioned here, however, that the knitting chair according to the invention can, if desired, be equipped with containment combs or containment plates, but these would also be stationary in such a case and not be driven,

109838/0295 ORIGINAL BATHROOM

As mentioned, and the movements of the pulling needles and the warp thread hole needles, which are used to catch the Warp thread through the latch needle!} Are required, shown in Pigο4-17.

In Figo4 and 11, which correspond to each other, a lower ^ is shown agung completed and the latch needles 16 (v6n which only one is shown in Fig einsige _e 4) / who ~ thy; raised calibration xmdbewegen with their hooks 16a in the egg-shaped paths P and opened latches 16b forward, "In Fiff., 4 is an old Kascfce around the shank of the needle around .t m ^T denotes oil and a warp ¥ is located by the eyelet 10a of the guide needle 10 and to extend down to the product shown in Figo4 _o and stage 11 are shown in the Ket tfaden ~ I »ochnadeln 10 at a standstill ο

The overlap begins immediately after the needle hooks

16a have moved away from the perforated needles 10. In Pig. 6 and 13 has therefore begun the overlapping and the punch needle 10 is laterally to the right to the position (see Fig. 13) has been moved, in which the warp thread ¥ is safely under the needle hook 16a (see Fig. 16) «The latch needle has already started its downward movement

- 16 -

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6AO ORIGINAL

In Figo? and 14 the next stage is shown, in which the new underlay has begun and the _{perforated needle 10 has been moved laterally to the left ir, t o} The needle 16 moves with its hook further down the path P. This has the consequence that on the old stitch oil acts on the loop-forming plate 28 and pushes it up along the shaft of the latch needle "so that it closes the latch 16b"

The latch needles then move further downwards and begin to move forward ₉ to = ■ as shown in FIGS. 8 and 15 "= when the old stitch oil has been knocked off as a result of its continued contact with the loop-forming plate 28. The new stitch nl of the thread V has been curled by the latch needles through the aforementioned old stitch. In this stage, the perforated needle 10 can be at a standstill _o If elastic threads are inserted in this stage, they are passed across the upper ends of the needles by one needle distance "

In the next stage, shown in FIGS. 9 and 16, do the latch needles begin between the elastic threads that are crossed? as shown for example at ET in FIG. 10, to increase. _{If you increase further, the new stitch nl 9,} which is still in the hook 16a and around, acts

~ 17 -

109838/0295

BAO ORTGINAt

T63576Ö

It

around the shaft of the needle 16, on the tongue 16b and opens it, as in Pig. 10 is shown. At this stage the elastic thread ET is between the new stitch nl (which has now become an old stitch) and the underlay that is the next new one the mesh to be culminated, gekleaaat. Fig. 10 therefore shows the manner in which an elastic thread can be laid. Although the loahnadel 10 in all three stages, shown in Fig. 8 and * -15, 9 and 16 and in Fig. and 17 are shown, this is not essential,

For a proper understanding of FIGS. 11-17 in their In relation to FIGS. 4-10, it should be noted that at every moment the needle 10, through its eyelet 10a, is inserted Warp thread W extends, the particular thread guide iat, which is shown in each of FIGS Position is shown. In addition, while the latch needle 16 shown in Figures 4 and 5 is that needle eats, which is in each of Fig. 11-17 in the position indicated by Y, the needle 16 in each of the 6-10 the needle which is designated with Z in each of FIGS. 11-17.

Furthermore, according to the invention, the previously conventional tongue sets are no longer required since the tongue

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BATH ORIGINAL

needles 16 in the egg-shaped groynes P aich eelbetätlg

I.
approach and withdraw so that only a taut metal wire or a more rigid Kun ^ tetoff thread or the like, suitably arranged for the control of the needle tongues is required. Avoiding the usual complicated tongue control mechanisms. naturally contributes to the simplification and cheapening of the invention.

The warp threads picked up and processed by the latch needles 16 are "etarre" threads, under which designation both natural fibers and chemical fibers, such as cotton, rayon, nylon and the like. to veretehen which, although they have a relatively low degree of elasticity, although rigidly Bind unlike genuine elastic threads, Z aolchen ₀ B., the SBS rubber or Bind made of a synthetic rubber, or elastomeric yarns, such as the so-called Srandex -Pad based on i

Polyurethane.

A knitting chair according to the invention has the advantage that work can be carried out at high speed? This is due, among other things, to the fact that oscillating movements of the Locl bars are avoided. Avoidance also helps of a platinum bar shoot to a higher speed

₁₉ _ 109838/0295

BAD ORIQiNAU

Finally, a conventional gutter plate can be left out. In one case, in w icher :. Einschließkämme or sinkers also v, e £ left who <3s _9, the needles can weBentlich be made shorter than before because while the latch needles had to penetrate beyond the depth of the channel plates and the Einschließkätime in a conventional machine, the needles in an inventive machine _t In which the use of containment combs or sinkers is avoided, only need to be actuated for slightly more than the thickness of the elastic threads.

Further, in a case where containment combs or containment sinkers are omitted, none occur unsightly "sinker" lines in the manufactured Chain chair. Due to the lack of a gutter plate, thread breaks are also kept to a minimum and errors due to impairment of the needles by curved grooves are eliminated

Patent claims:

²⁰ ~ 109838/0295

6AD ORIGINAL

Claims (1)

Claim » Raschel knitting machine comprising, in combination, a needle bar with holders in which needles with pivotable tongues are cast, several Looh bars, each of which is equipped with a set of perforated needles that interact with the latch needles' are determined and have eyelets through which the individual warp threads of a chain pulled off a warp beam are guided and an actuating and control device which is used to control the needle bar and the To communicate Loohbarren movements through which the warp threads are laid in loops, ie. around the latch needles are laid around, which latter from these threads laterally connected wales of knitted crochets form, characterized in that the perforated bars (7) can only be moved individually around the perforated needles (10) laterally, i.e. the needles are not swiveled back and forth between the latch needles (16) and warp threads (W) laid therewith can be picked up and grasped by the latch needles, and the latch needle bar (15) communicated a composite movement, the outgoing and forward as well as vertical and turning components, εο that the tongue ~ ²¹ "109838/0295 OBiQlNAL needle heads (I6a) a movement in one direction bin run in endless tracks (P), which are arranged in planes that are perpendicular to hole bars are and are located between the needles. Rasohelwirkatuhl according Ans Pruch 1, characterized in that each of the endless tracks (P) is substantially elliptical in part, such that it is wider than at its end Iberians at its lower _end%. (Jig.3; 5ο Raschel knitting chair according to claim 1 or 2, characterized in that that the main shaft (18) of the knitting chair »from which the Zungerji needles (16) are actuated, carries a number of Kxsenter (19), each of which carries one. Bracket (20) is surrounded from which to calibrate an upwardly directed rod (21) extends which rods supports the latch needle bar (15) and itself extend freely through guide openings (22a) which in at least e ^ .em Bauel ^ cnt (for example at 23) are provided for the oscillatory movement within of the frame of the Wirkstuhlκ pivotally mounted is. 4. Raechelv / irkstuhl according to claim 3 $ thereby marked - 22 - 109838/029 5 BATH ORIGINAL 163S760 net that a Maschenbiidnerplatte (28) on the vibrating component (23} or is attached to vibrating components eo that.; j.e of the vibrating Movement of the tongue barrels (15) follows- 5ο Raschel knitting chair according to claim 4, characterized through perforated bars (29 and 30) with loyalty needles (31) equipped for elastic threads (ET) and which by inserting the goods are to be incorporated, which additional bars εο arranged and operable are that they are the Elfist threads over the Knitting plate at a suitable angle with respect to this lead. 6. RaechelffektEtuhl according to the preceding claims »characterized in that the frame has two spaced vertical end frame parts (2 and Γ»), between which a horizontally arranged rigid frame part (6) of triangular cross-section ait the The apex extends downwards, which cam part carries a slidable perforated bar (7) euf;) ecer of its two angled surfaces (6a; _c - 23 - 109838/0295 BAD OWGlHAL 7. Rasehel casting chair according to Anepruch 6, characterized in that each slidable perforated bar (7) with parallel tubular bearings (7a), extend through soft calibration rods (8), which at their ends in cheeks or flaps (6b) are attached, which protrude from the angled surfaces (6a). 8. Raschel knitting chair according to Anepruch 6 or 7 _9, characterized in that each perforated bar (7) θο is arranged that it can be offset by a rotatable cam disc (RC) by means of a spring-loaded, slidable actuating rod (12) 9 · LascheIvirkstuhl according to claim 5, characterized in that each of the perforated bars (29 and 30) with Hole needles bew. Fadenführerη (31) for elastic fttden is equipped with a rotatable cam disc (RC) can be actuated by means of a spring-loaded, sliding actuator (33). For Clutsom & Kemp, Limited PATENTANWXlTt ML-WIe-RFINCICEDIPL-INGaBOH * DiPL-INO. ». STAIOIIl 109838/0295 BATH ORIGINAL