EP1270777B1 - Assemblage par emboîtement vérouillé entre chapeau de carde et courroie d'entraînement - Google Patents

Assemblage par emboîtement vérouillé entre chapeau de carde et courroie d'entraînement Download PDF

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Publication number
EP1270777B1
EP1270777B1 EP02013472A EP02013472A EP1270777B1 EP 1270777 B1 EP1270777 B1 EP 1270777B1 EP 02013472 A EP02013472 A EP 02013472A EP 02013472 A EP02013472 A EP 02013472A EP 1270777 B1 EP1270777 B1 EP 1270777B1
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EP
European Patent Office
Prior art keywords
belt
flat
pair
beams
snap connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP02013472A
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German (de)
English (en)
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EP1270777A1 (fr
Inventor
Christian Sauter
Paul Cahannes
Peter Weber
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Priority claimed from DE2002109579 external-priority patent/DE10209579A1/de
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1270777A1 publication Critical patent/EP1270777A1/fr
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Publication of EP1270777B1 publication Critical patent/EP1270777B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/14—Constructional features of carding elements, e.g. for facilitating attachment of card clothing
    • D01G15/24—Flats or like members

Definitions

  • the invention relates to the connection between a flat rod and a flexible drive belt in the cover assembly of a revolving flat card.
  • a flat rod and a flexible drive belt in the cover assembly of a revolving flat card.
  • Such a compound is shown in EP-A-627507 and EP-A-753610 (or US 5,956,811).
  • the belt according to EP-A-627507 comprises fastening elements provided in pairs, which form a snap connection with the flat rod.
  • EP-A-753610 shows a special drive belt for the flat bars of a revolving flat card, the belt being provided with connecting elements integrally formed with a flexible band and arranged in pairs so that a pair of elements can be received in a flat bar member to form a snap connection.
  • Each element comprises a transverse beam with an inclined surface, wherein the inclined surfaces are directed by a pair of beams in opposite longitudinal directions of the flexible band.
  • the inventive solution still lends itself not only to the known flat bars with cuboid lid heads, but for example also in flat bars, which are provided at their ends with rod-shaped slide pins, for example according to EP-A-567747.
  • Fig. 1 is a known Wanderdeckelkarde 1, for example, the card C51 of the Applicant, shown schematically.
  • the fiber material is fed in the form of dissolved and purified flakes in the hopper 2, taken over by a licker 3 (also called Briseur) as Wattenvorlage, a drum 4 (also called Tambour) 4 handed over and parallelized by the lid of a revolving flat 5.
  • the lids are opposite by pulleys 6 or driven in the same direction to the direction of rotation of the drum 4.
  • Fibers from the non-woven fabric located on the drum 4 are then removed by a doffer roll 7 and formed into a card sliver 9 in a discharge section 8 consisting of different rolls.
  • This card sliver 9 is then deposited by a sliver tray 100 in a transport can 110 in cycloid turns.
  • Fig. 2 the flexible sheet 120 such a card is shown in a section, with revolving it revolving lids 13, (only two shown) by a toothed belt 14 and a drive not shown here in the same direction or opposite to the direction of rotation of the drum 4 are moved slowly.
  • adjusting elements 15 are provided, with which the distance of the revolving lid 13 to the drum surface, the so-called carding, can be adjusted.
  • the revolving flat unit of a card according to DE-A-3835776 comprises, for example, 106 flat bars, of which 41 are in the working position, that is, in contact with the sliding guide.
  • FIG. 3 shows the preferred embodiment according to EP-A-627507 for connecting flat bars with a drive (toothed) belt.
  • a head piece 36 of a flat bar 31 comprises a push-in part 41 and a sliding part 50.
  • the part 41 extends into the receiving part of a hollow profile and is fixed therein, e.g. according to EP-A-627507.
  • the sliding part 50 is guided in the working position of the flat bar along the flexible sheet 120 and during the return of a rail (not shown) along.
  • the sliding part 50 is provided with two attachments 52, and the two attachments 52 together form a receiving opening 54.
  • the drive belt 14 is formed as a toothed belt.
  • the teeth on the "inner surface” 56 of the belt ie, on the surface 56 which is inwardly directed with respect to the circumferential closed path) cooperate with drive wheels (not shown).
  • the belt 14 has a projection 10A formed integrally with the belt.
  • the projection 10A is received in the receiving opening 54 between the attachments 52.
  • the projection has a slot 11, whereby two "legs" are formed, each of which is provided with a cam 12 in the foot section.
  • the headers 52 each have an inclined surface 62 in order to better absorb and hold the cams 12.
  • the legs are resilient and can be compressed to form a snap fit with the head portion 36 of the flat bar 31.
  • Fig. 4 shows an embodiment of a belt according to EP-A-753610, wherein only a smaller distance of an elongated structure is shown in the figure.
  • the belt is indicated as a whole by reference numeral 200, and includes a longitudinally continuous body 202, pairs 204 and 206, respectively, of connecting members 208 and 210, and teeth 212.
  • the belt is cast in one piece, extending in the longitudinal direction Reinforcements (eg filaments or wires, not shown) can be miteingegossen.
  • the (matrix) material is preferably an elastomer, e.g. Polyurethane.
  • the body 202 has a predetermined width B (e.g., in the range of 20 mm to 30 mm) and a predetermined thickness D (for example, in the range of 1 to 3 mm).
  • the thickness D can be chosen depending on the tensile forces to be transmitted, e.g. depending on the number of flat bars.
  • Each connecting element 208 or 210 consists of a transverse bar which extends over the entire width B of the body 202, perpendicular to the longitudinal direction of the body.
  • Each bar 208 or 210 has a predetermined height H (eg in the range 3 to 8 mm).
  • the beam 208 or 210 is wedge-shaped in cross-section, wherein the smaller "root" of the wedge adjoins the body 202 and the larger head portion of the body 202 is removed.
  • the bars 208, 210 of a pair (eg, the pair 204, which is also shown in Fig.
  • the "nominal distance" A which is the same across the whole height of the beams when the body 202 is straight extended (Fig. 5).
  • the "slot" which forms the distance extends down to the root of the beams.
  • Each beam therefore has an inclined surface 214 and 216, respectively, and the inclined surfaces of a pair are directed in opposite longitudinal directions.
  • each inclined surface of a pair e.g., pair 204, Fig. 4 faces an inclined surface of the adjacent pair (e.g., pair 206).
  • the inclined surface 214 or 216 of a beam with its adjoining surface 220 of the body 202 encloses a predetermined angle ⁇ (for example in the range 60 to 80 degrees) with the body 202 extended.
  • each beam 208 or 210 is rubber-elastic at least in the root area, so that the beams can be urged against each other by means of suitable forces on the inclined surfaces (or in the head region in general) in order to reduce their mutual distance in the head region.
  • a belt body as shown in Figs. 4 and 5, respectively, is cut (or formed) to a predetermined overall length, and the end portions of the body are then joined together to provide an endless belt for use in a traveling deck assembly 5, 6 of Fig. 1.
  • each beam pair 204, 206 is moved from right to left in FIGS. 4 and 5.
  • each beam pair is symmetrical, so it does not really matter in which direction it is moved.
  • the assumption of a particular direction simplifies the following description.
  • the longitudinal direction of the body 202 is between the preceding free edge K1 of the beam pair 204 ( Figure 5) and the trailing free edge K2 of the same pair a predetermined value "L" ranging from 12 to 25 mm. can lie.
  • the distance "L” is called “span width" of the beam pair below.
  • the corresponding distance "I" at the root of the beams 208, 210 in the same state is a smaller predetermined value, which is in the range of 9 to 22 mm. can lie.
  • a flat bar which is to cooperate with this belt is indicated by the reference numeral 222 in Fig. 6, and it comprises a hollow profile 224 and two end heads 226, of which only the one in Fig. 6 and Fig. 7 is visible.
  • Each end head 226 has a connection part (not visible in these figures, but see the insertion part 41 in Fig. 3), which is pressed in the respective end part of the profile 224 and held therein.
  • the preferred solution for mounting the end heads 226 in profile 224 has been described in EP-A-627527.
  • a shoe / clamp portion 228 Figure 7 of the respective end head 226 protrudes from the profile end.
  • the part 228 includes two ledges 230 (FIG.
  • strips 230 each form a sliding surface 232, which slides on the sliding surface of the flexible sheet when the rod 222 is in the working position.
  • the strips 230 are formed from one piece with transverse struts 234, which together with the strips form a receptacle of predetermined size for the corresponding elements of the belt 200.
  • the size of this opening in the longitudinal direction of the strips 230 preferably corresponds to the belt width (or beam length) B (see FIGS. 7 and 4). This ensures that the belts of the revolving flat unit and the flat bars of the unit center each other laterally.
  • the stapling or connecting function is fulfilled by two strip parts 236 (FIG. 6) which are also wedge-shaped in cross section, so that they each have an inclined surface 238 or 240.
  • These inclined surfaces 238, 240 are opposite to each other, and they have a predetermined minimum distance Mn (Fig. 7), which is considerably smaller than the span L (Fig. 5) of a beam pair in the aforementioned standby state.
  • the inclined surfaces have a predetermined maximum distance Mx (FIG. 7), which will be explained in more detail below.
  • the distances Mn and Mx are hereinafter referred to as the "opening widths" of the staple part.
  • Fig. 8 shows a shoe / clamp portion 228 in conjunction with a beam pair 207 of the belt 200.
  • the bracket portion has been snapped over the beam pair so that the inclined surfaces 238, 240 are in contact with the inclined surfaces 214, 216 of the beams.
  • the height of each wedge-shaped portion of the ledges 230 is approximately equal to the height H of the beams 208,210, but the overall height LH ( Figure 6) of each ledge 230 is significantly greater such that the sliding surfaces 232 (in the arrangement of Figure 8) are far above the bars 208, 210 are located.
  • Each flat bar 222 is connected in the same manner with one bar pair each.
  • the distance between adjacent flat bars 222 is predetermined and should be kept as small as possible, it is indicated in Fig. 8 with the reference numeral "t".
  • the distance t is given by the construction of the strips 230 and the distance between adjacent pairs of beams. The latter distance is also given and is at the roots of the beams 208,210 (at the surface 220 of the body 202) the value "S" ( Figure 8), which is in the range 14 to 27 mm.
  • the width Mn of the input aperture of the clip is preferably about the same size as the dimension "I" ( Figure 5) at the root of the beams 208, 210.
  • the maximum width Mx of the clip is preferably less than the span L of the beam pair. In the mounted state ( Figure 8), therefore, the distance of the beams in the head area, compared to the nominal distance A, is somewhat reduced, i.e., reduced. the strips 230 urge the bars 208, 210 against each other even when fully snapped. Much more, the bars 208, 210 are crowded together as the clip snaps over, as will be explained below with reference to FIGS. 10-12.
  • the holding forces are also influenced by the "degree of bending" of the belt body, as explained above with reference to FIG. 9.
  • Figures 4, 5 and 8 all show (for simplicity) the belt body 200 in the straight stretched condition.
  • the traveling deck path is nowhere straight, and it includes in the end regions two sections of the deflection rollers, which require a considerable bending of the belt body.
  • the outer surface of the body 202, with the bars 208,210, is thereby converted convex.
  • the effect of this bend in the absence of a clamp is shown in Figure 9 - the beams 208,210 of each pair are pulled apart, especially at the top of the head so that the distance between the beams varies from the nominal distance A ( Figure 5) to A + (Fig. 9) enlarged.
  • the snap connection must also allow the release of a flat bar (eg when waiting for the flat bars or to control a flat bar) and (re) attaching a rod - and this if possible while (still) running deck unit.
  • the attachment of a rod is shown schematically in FIG. It will be one of the inclined surfaces of the clip (in the example shown, the area 238) is brought into contact with the inclined surface (214 in Fig. 10) of the corresponding beam (208 in Fig. 10).
  • the flat bar 222 is inclined so that the edge K1 can be brought to the other bar of the clip in contact with the head of the other bar 210 (state of FIG. 10).
  • the beam 210 is elastically deformed so that the edge K1 can move past the edge K2 ( Figure 5), which means that the clip snaps into place.
  • the simple beam head form of Figs. 4, 8 and 10 comprises an end face lying in a single plane. If this shape is selected, both problems with "impressions" and damage to the edges K1 and K2 are to be expected.
  • a partial solution to this problem is indicated by dashed lines in Fig. 5, where the end face is chamfered to form fins 242, 244.
  • the span of the beam pair is reduced to L1.
  • the transition between a guide surface and the corresponding inclined surface of the beam is preferably rounded rather than edge-shaped.
  • This design exception simplifies the indentation of Fig. 10.
  • the attachment and also the release of a flat bar could still be somewhat cumbersome for an operator under certain circumstances.
  • This problem can be solved elegantly by reversing the effect of FIG. 9.
  • the solution is shown schematically in FIG. 11.
  • At least one guide should not provide guidance for the belt, so that an operator can himself produce the desired bend of the belt (with or without tooling).
  • This "mounting point" is preferably in the area where a belt part in its movement leaves the guide path along a guide roller and the return rail has not yet reached.
  • the mounting site can be placed at a different location along the return path, or it can even be distributed some mounting sites along the path. It is important that the mounting points for the two belts of a Wanderdeckelaggragates correspond.
  • Fig. 13 shows a modification of the arrangement of Fig. 12, according to which the return rail 246 is provided with a recess 252 and this recess 252 is associated with a locking plate 254.
  • the plate 254 pushes the bracket portion of the slider head 228 down over the beam pair.
  • the plate 254 is rotatably supported about an axis 253 and biased by an elastic means (e.g., the spring 256) toward the recess 252.
  • the plate normally stops a predetermined distance from the return track, e.g. because of a stop, not shown.
  • the plate is pushed upwards (against the bias) by the return rail 246.
  • the rail 246 itself is rotatably supported about an axis 257 and biased upwardly by means of an elastic means 258 (e.g., a spring) to tension the belt 200.
  • the belt is therefore normally not deflected into the recess 252, but the recess is bridged by the belt. A deflection in the recess but under pressure from the plate 254 when the latter is pushed upwards, as already written. The deflection has the effect described in connection with FIG. 11.
  • both return rails must be provided with a device to the elements of the snap connection with each other To interfere.
  • the device comprises a recess and plate as shown in Figure 13, the two devices must simultaneously snap the elements together.
  • Fig. 14 shows laterally parts of a flat bar 222 which is guided between two belts 200A, 200B, respectively, on opposite sides of the card (not shown in Fig. 14, see Fig. 1).
  • the central part of the flat bar is broken.
  • the flat bar 222 is shown as viewed from above on its "return path", i. the flat cloth C moves upwards for cleaning, so that the profiles 31 ( Figure 3) are not visible, but the sliding shoes 228 of the end heads are visible.
  • Each of the shoes is attached to a pair of beams 205A, 205B on its belt.
  • the bar pairs adjacent to the bar pair 205A on the belt 200A, denoted 204,206, are not provided with flat bars.
  • the flat bar 222 may be, for example, the first lid which is placed on the belt during assembly or subsequent servicing.
  • the belt is again indicated by the reference numeral 200 and comprises a body part 200 with teeth 212.
  • the body part 200 normally comprises longitudinally extending support elements, which are schematically indicated by the reference numeral 260.
  • a beam pair 262, 264 is shown in side view, with only the beam 264 shown as a whole.
  • the beams 262, 264 of the pair are separated by a slot 266 which extends from the outer (free) end of the beams to the body portion 202 of the belt.
  • the bar 262 opposite side of the beam 264 has a guide surface 268 at the outer end of the beam, an inclined support surface 270, which is similar to the surface 216 in Fig. 4, and an inclined foot portion 272.
  • the inclined foot portion 272 is with the inclined support surface 270 connected via a joint 274.
  • the beam 264 bends about the hinge 274 rather than around a root, as in the case of the beams 208, 210 ( Figure 4).
  • the support surface 270 forms the belt length in a straight position, as shown in Fig. 15, an angle ⁇ (in the range 60 to 80 degrees.
  • Fig. 15 shows a pointed edge on which two surfaces meet. This is not the actual desired shape for reasons that have already been set forth.
  • Such edges are preferably rounded, especially if there is a risk that the beam will be cut at the clamping or fixed elements.
  • rounding of beam surfaces may result in a shape as indicated at 276 in FIG. 16 where the support surface 278 is rounded.
  • the support surface of each beam preferably extends to the root 280 of the beam (where it abuts the body portion 202 of the belt 200), for reasons which will be described in more detail with reference to Figs.
  • Fig. 17 shows a beam pair 282, 284, each beam having a simple rectangular profile.
  • the bars are separated by a slot 286.
  • Each beam 282, 284 is integral with or fixed to the body portion 202 of the belt.
  • the pair of beams is received by a shoe, clamping or fastening means similar to that already described, but with side surfaces adapted to receive the beam surfaces 283, 285.
  • the direction of movement of the flat bars in Fig.19 is shown with arrows, this direction being for the purpose of illustration and description only.
  • the flat bars can nevertheless move in the opposite direction. During movement of the flat bars along the flexible sheet 120 (see Fig. 2) or on the opposite side as the belt returns, there are no problems in keeping the flat bars relative to the belts.
  • each beam has a central elongated plane P (symmetry plane), and that the body part 202 of the belt has a neutral plane N, ie a plane in which a belt fabric is not distorted in principle, when the belt is about an axis perpendicular to it Length but bent parallel to its width.
  • the plane P of each beam is perpendicular to the neutral plane N of the belt.
  • the axis of the belt bend is not shown, but is on the bar 282, 284 deposited side of the belt. Therefore, the belt fabric 200 is stretched above the neutral plane N in Fig. 18 (relative to Fig. 17) and compressed below the neutral plane.
  • the belt fabric lying in the plane RT in Fig. 17 (at the "root" of the beam 282 where it abuts the belt body) is in a bend RT in Fig. 18 with a degree of flexure coinciding with the position of the bending axis (not shown) arises, stretched out.
  • the axis of rotation of the diverting pulley represents the bending axis.
  • the pair of beams 282, 284 do not support a lid at the time of movement about the diverting pulleys 6, so that the beams of the pair are free to diverge as shown in Fig.18.
  • each beam 282, 284 extends radially from the belt 200.
  • the beams can be designed separately and then attached to the belt in an appropriate manner. Normally, however, the body portion of the belt is formed integrally with the beams (and teeth 212).
  • the snap connection should be supplemented with a locking element.
  • a locking element Embodiments are explained below with reference to FIGS 20 to 29, starting from the preceding description of Figures 5 to 8, so that only the respective supplement must be re-treated by a locking element.
  • the locking element is chosen so as to prevent the mutual approach of the beams 208,210, which is required for a loosening of the snap connection.
  • each sliding shoe / clamp part 228 is assigned a respective locking element in the form of a so-called clip 300, which engages with the beams 208, 210 through its own snap connection.
  • the clip 300 is formed in one piece and includes a "plate” 302 sitting snugly on the end surfaces 304 of the beams 208,210, a first leg 306 extending into the slot 308 between the beams 208,210, in contact with the side surface of the beam 208, and a second leg 310, which also extends into the slot 308 while being in contact with the side surface of the beam 210.
  • Each leg is provided with a cam 312 which extends parallel to the longitudinal direction of the beams 208, 210 and snaps into a corresponding groove (not specifically indicated) in the respective beams 208 and 210, respectively.
  • the legs 306, 310 are elastically deformable relative to the panel 302 so that they can be printed together when the clip needs to be snapped.
  • the distance between the 306,310 legs may increase slightly as the distance from the plate increases to ensure that the clip does not loosen in use.
  • the distance between the legs 306, 310 in the vicinity of the plate is preferably equal to the nominal distance A (FIG. 5). Since the legs in the vicinity of the plate 302 are not easily bent, but forward bending forces directly to the plate, the distance between the beams 208, 210 can not be reduced below the nominal distance A, as long as the clip 300 is snapped. The snap connection between the flat bar and the belt body 202 is thereby locked. The clip must therefore be removed to allow the release of the flat bar from the belt.
  • Removing from the clip may require the destruction of the clip, so the removed clip needs to be replaced to provide a snap connection between the clip Replace the flat rod and the strap at the same point.
  • the clip 300 can then practically cover the slot between the beams 208, 210. However, a short portion may be left from the slot so that a tool may be inserted into the slot to release the snap fit between the clips and the beams.
  • FIG. 21 schematically shows an alternative to the clip 300 in the form of a cover 301 for the shoe / clamp part 228.
  • This cover 301 is provided with elastically deformable mounting claws 303 provided with openings (not shown) in the part 228 between the sliding surface 232 and the bars 208, 210 can engage.
  • the facing against the beam surface of the cover 301 is provided with a bar 305 which nests between the beams 208, 210, practically fills the slot in the region of the free ends of the beam and thus locks the snap connection.
  • the cover 301 also protects the snap connection against flying and dust from the environment in the spinning mill.
  • the bar 305 could also be provided with cams (not shown) similar to the cams 312, thereby forming a snap connection directly with the beams, which may replace or supplement the aforementioned claws.
  • the cover may be provided with claws that cooperate with fasteners on the outer surfaces of the cross braces to secure (but releasably secure) the cover to the slipper / clamp member ).
  • the locking element is in the form of a bolt 314 which extends between the beams 208, 210 and through corresponding holes (not specifically indicated) in the transverse struts 234.
  • suitable securing elements 316 are provided, which hold the bolt 314 in its locking position.
  • the locking function is substantially similar to that of the clip 300, with the bolt 314 being inserted between the beams 208, 210 after the snap-fit connection between the flat rod and the belt has been achieved.
  • the securing elements 316 are then attached. These elements can be designed in such a way that they must be destroyed to allow removal of the bolt (unlocking).
  • FIG. 24 shows a variant of the arrangement according to FIG. 22, according to which it is not necessary or possible to remove the locking element for unlocking since it is firmly engaged with the sliding shoe / clamp part.
  • the locking element 320 in this case comprises a part 322 which, like the bolt 314 ( Figure 23), extends between the beams 208, 210 (not shown in Figure 24), the part 322 not being circular in cross-section but being a flat bar with rounded side surfaces 324 is formed.
  • the rod 322 is formed integrally with end portions 326 (only one end portion 326 visible in Figure 24) which are rotatably received in the cross braces 234 (see Figure 23).
  • the rod 322 is thus rotatable with the end portions 326 through an angle of about 90 ° between an unlocking position (shown in FIG. 24) and a locking position (not shown).
  • the side surfaces 324 In the locking position, the side surfaces 324 each come into contact with a beam 208 or 210 and thus fulfill the locking function, which was explained with reference to FIG 20.
  • FIG. 25 shows a further variant of the principle according to FIG. 24.
  • the locking element 320A also comprises a rod-shaped part 322 and end parts 326 (only one end part visible).
  • An end portion 326 is provided outside of the slide / clamp portion 228 with a lug 330 which may be in contact with a control cam during movement of the flat bar along its path of travel. Touching lug 330 to the curve moves the lug from the standby position (shown in solid lines) to the operative position (indicated by dashed lines), moving member 322 to the latching position and holding it there until an opening in the control cam pivots back allows the approach to its original position.
  • the outer dimension of the flange 342 is smaller than the distance Mx (FIG. 7), so that the element 300 can be easily inserted between the strips 230.
  • the length of the bolt 344 is equal to the diameter of the outer dimension of the flange 340.
  • the width W (Fig. 28) of the latch 344 is slightly smaller than the width A (Fig. 5) of the slot 308 (Fig. 20) between the adjacent beams 208,210.
  • the depth D of the latch 344 is preferably slightly smaller than the height H (FIG. 5) of the beams 208, 210.
  • the handle 340 consists of a button-like head portion 346 and a stem 348.
  • a tool may be inserted between the head portion 346 and the flange 342 to facilitate removal of the locking element 300 from a shoe / clamp 228 (FIG. 7).
  • the length of the stem 348 is selected so that the head portion 346 does not protrude from the shoe.
  • the sliding shoe is preferably provided with a sliding layer, e.g. provided according to DE 19834893.
  • the element 300 will be further described in the illustrated position (with the handle 340 at the top). From the foregoing description, however, it will be understood that in operation, the element 300 must operate with the handle down.
  • Each side surface of the latch 344 is preferably provided with an upper groove 350 and a lower groove 352.
  • the opposing side faces of the beams 208, 210 are formed with beads which, in the locking state, can engage in a respective groove 350 or 352.
  • the beam 208 has a lower bead 356 for cooperation with a groove 352.
  • the beam 210 has an upper bead 358 for cooperation with the other groove 350.
  • the distance Aw (FIG. 29) between the beads 356, 358 is smaller than the width W of the bolt, so that when snapping the beads a snap connection between the locking element 300 and the beam pair 208,210 comes about and jumping out of the beads can be avoided.
  • the latch 344 could be provided with beads instead of grooves and the beams 208, 210 with grooves instead of beads.

Claims (7)

  1. Elément de verrouillage pour le verrouillage d'un raccord clippé entre une courroie d'entraînement et une partie coulissante d'une tige de couvercle, la courroie étant pourvue d'éléments de liaison élastiques (208, 210) qui sont disposés par paires, de sorte qu'un écart (308) est laissé libre entre les éléments d'une paire, caractérisé par une partie de tête (340) équipée de préférence d'une poignée et une targette (344) qui peut être introduite entre les éléments de liaison (208, 210) afin de chevaucher sensiblement l'écart (308) et la targette (344) étant pourvue de gorges (350) et/ou de bourrelets qui peuvent également former un raccord clippé avec les éléments de liaison (208, 210).
  2. Elément de verrouillage selon la revendication 1, caractérisé par une bride (342) entre la partie de tête et la targette.
  3. Elément de verrouillage selon la revendication 1 ou 2, caractérisé en ce que l'élément de verrouillage est formé d'une pièce.
  4. Courroie d'entraînement pour les tiges de couvercles (222) d'une carde à couvercles mobiles, dans laquelle la courroie (200) est pourvue d'éléments de liaison (208, 210) qui sont formés en une pièce avec une bande flexible (202) et disposés par paires, de sorte qu'une paire d'éléments (204, 206, 207) peut être rentrée dans un élément de tige de couvercle (226) pour former un raccord clippé, chaque élément comprenant une barre transversale (208, 210) à surface oblique (214, 216), les surfaces obliques (214, 216) d'une paire de barres (204, 206, 207) étant orientées dans des directions longitudinales opposées les unes aux autres de la bande flexible (202), caractérisée en ce qu'entre les éléments de liaison d'une paire, un élément de verrouillage selon les revendications 1 à 3 peut être introduit de manière à pouvoir former un raccord clippé avec les éléments de liaison.
  5. Courroie d'entraînement selon la revendication 4, caractérisée en ce que les éléments de liaison (208, 210) sont pourvus de gorges (350) et/ou de bourrelets qui peuvent former un raccord clippé avec l'élément de verrouillage selon les revendications 1 à 3.
  6. Courroie selon la revendication 4 ou 5, caractérisée en ce qu'entre les barres (208, 210) d'une paire, un espace nominal (A) d'au moins 1 mm existe aux extrémités libres.
  7. Agrégat à tête mobile comprenant une paire de courroies sans fin (200) selon les revendications 4 à 6, qui forme respectivement avec une paire de liaison (208, 210) un raccord clippé avec la tête d'extrémité du couvercle et dans lequel chacun de ces raccords clippés peut être verrouillé à l'aide d'un élément de verrou selon les revendications 1 à 3.
EP02013472A 2001-06-21 2002-06-14 Assemblage par emboîtement vérouillé entre chapeau de carde et courroie d'entraînement Expired - Lifetime EP1270777B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH11302001 2001-06-21
CH11302001 2001-06-21
DE2002109579 DE10209579A1 (de) 2002-03-05 2002-03-05 Verriegelte Schnappverbindung
DE10209579 2002-03-05

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EP1270777A1 EP1270777A1 (fr) 2003-01-02
EP1270777B1 true EP1270777B1 (fr) 2005-09-21

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US (1) US6748628B2 (fr)
EP (1) EP1270777B1 (fr)
DE (1) DE50204305D1 (fr)

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DE102007051442A1 (de) 2007-10-25 2009-04-30 Saia-Burgess Dresden Gmbh Selbsthaltendes Verschlusssystem
CN101522966B (zh) * 2006-10-19 2011-10-19 欧瑞康纺织有限及两合公司 用于梳棉机的回转盖板组件
CN101275311B (zh) * 2007-03-07 2011-11-16 赫格特有限公司 动态分梳方法及其装置

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US7950072B1 (en) 2005-06-03 2011-05-31 Violet Hanson Reversible belt with slide buckle
DE102006049342A1 (de) * 2006-10-19 2008-04-24 Oerlikon Textile Gmbh & Co. Kg Wanderdeckelaggregat für eine Karde
DE102007011371B4 (de) 2007-03-07 2018-06-14 H. Hergeth Gmbh Karde zum Kardieren von Fasern mit bewegten Deckeln
DE102009018058A1 (de) * 2009-04-21 2010-11-04 Staedtler + Uhl Kg Kreiskamm
DE102012006557A1 (de) * 2012-04-02 2013-10-02 Trützschler GmbH & Co Kommanditgesellschaft Deckelstab für eine Karde, der einen Tragkörper mit einem Garnituraufnahmeteil und eine Rückenteil aufweist
CN114028666A (zh) 2015-03-31 2022-02-11 费雪派克医疗保健有限公司 用于将气体供应至气道的用户接口和系统
CN114569855A (zh) 2016-08-11 2022-06-03 费雪派克医疗保健有限公司 可塌缩导管、患者接口和头戴具连接器

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CN101522966B (zh) * 2006-10-19 2011-10-19 欧瑞康纺织有限及两合公司 用于梳棉机的回转盖板组件
CN101275311B (zh) * 2007-03-07 2011-11-16 赫格特有限公司 动态分梳方法及其装置
DE102007051442A1 (de) 2007-10-25 2009-04-30 Saia-Burgess Dresden Gmbh Selbsthaltendes Verschlusssystem
DE102007051442B4 (de) * 2007-10-25 2009-08-27 Saia-Burgess Dresden Gmbh Selbsthaltendes Verschlusssystem

Also Published As

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US6748628B2 (en) 2004-06-15
US20030092522A1 (en) 2003-05-15
DE50204305D1 (de) 2005-10-27
EP1270777A1 (fr) 2003-01-02

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