Abstract: A frame connector assembly is configured to releasably, rigidly, and safely join large frame members to one another to form temporary structures. A connector assembly typically comprises a housing, a hoop element, a first cam block, a second cam clock and a rotatable actuator adapted to be engaged by a torquing tool. The housing is secured within the first frame member. Rotation of the actuator causes the threadedly-engaged second cam element to force movement of the first cam element in a direction opposing a spring bias. The hoop element is resultingly pulled toward the housing, along with a cleat or other detent element which is affixed to the second frame member. The housing can be manufactured inexpensively by way of extrusion. The frame connector assembly is adaptable to facilitate rapid construction and disassembly of various frame joint configurations, including end-to-face joints, and mitered 90-degree joints.

Abstract: The present invention relates to a A coupling device for positioning elements for warp yarns, comprising a male coupling part (1) with a head (8) which, when elastically deformed, can be introduced into a female coupling part (11) via a passage (13) and assumes a larger transverse dimension beyond said passage, so that the head is detained there and the coupling parts (1), (11) are coupled. Beyond this passage (13), the female coupling part (11) comprises an axially displaceable uncoupling body (16) with an opening (17), so that the head can be introduced into this opening (17) and be deformed in the process to such an extent that it can be introduced into the passage (13) in order to uncouple the coupling parts.

Abstract: A leno heddle includes a pair of elongated shanks, which are removably assembled together in overlying relationship. One of the shanks has configured ends to be removably received within corresponding openings in the other shank. The shank having configured ends can be replaced within the leno heddle without having to remove the other shank from its coupled relationship with the loom's upper and lower leno heddle support bars.

Abstract: Guard elements (31) are provided for the corner connectors (16 through 19) of a heald shaft (10) of a shedding unit, the guard elements covering the open space formed between the two legs (26, 27) and thus providing a grip protection.

Abstract: The present invention discloses an electronic-dobby-and-jacquard-loom weaving machine and a weaving method. The machine comprises a weaving body, a first warp beam, a second warp beam, a jacquard loom, a dobby loom, a harness frame, a plurality of first harness wires, a plurality of second harness wires, a plurality of harness cords, a plurality of return springs and at least one weft accumulator, wherein the weaving body and the jacquard loom are connected with a synchronous transmission mechanism between them; the synchronous transmission mechanism comprises a weaving spindle, a main motor encoder, a jacquard loom transmission shaft, a jacquard loom encoder, a gear box and a servo control system. The present invention improves the clarity of the fell (shed), widens the fell, keeps the fell clear stably, and realizes high-density jacquard weaving.

Abstract: A device for the formation of a leno selvedge includes a frame for installation on the heddle shafts of a loom. The frame has at least one needle pair for two leno threads. The needle pair is mounted in the frame so that it can pivot around the longitudinal axis of the frame, and the device includes a pivot drive for pivoting the needle pair.

Abstract: Guard elements (31) are provided for the corner connectors (16 through 19) of a heald shaft (10) of a shedding unit, said guard elements covering the open space formed between the two legs (26, 27) and thus providing a grip protection.

Abstract: A leno device uses the link mechanisms (31, 31?) to derive the movement of its half shaft (28) from the movement of its pull or lifting shafts (2, 3). The link mechanisms (31, 31?) connect the shaft rods (4, 5) of the pull or lifting shafts (2, 3) to the half shaft (28), whereby a connecting rod (32, 32?) extends between the two pull or lifting shafts (2, 3) from the top to the bottom through said shafts. The upper end of the connecting rod (32, 32?) is connected, on both sides of the connecting rod (32 32?) via connecting levers (33, 34, 33? 34?), to the joints (36, 37, 36?, 37?) that are connected to the upper shaft rods (4, 5) of the pull or lifting shafts (2, 3).

Abstract: Heddle frame having a transverse beam (2, 3) comprising a transverse profile (22, 63) and a reinforcing profile (20, 21, 52, 57, 58, 61, 62) which are glued to one another, the transverse beam (2, 3) having an undulating adhesive surface (46, 47, 48, 51, 55, 56, 59, 60) which can interact with an adhesive (42) which extends between the transverse profile (22, 63) and the reinforcing profile (20, 21, 52, 57, 58, 61, 62) in order to glue the transverse profile (22, 63) and the reinforcing profile (20, 21, 52, 57, 58, 61, 62) to one another. Transverse beam for a heddle frame and method for producing a heddle frame.

Abstract: The shaft rod (2) according to the invention has, at one of its narrow sides, at least one recess (21) which is later provided in the shaft rod and in which a reinforcing element (24) is glued. The material externally of the shaft rod forms securing zones (32, 33) which serve for the attachment of additional elements. The recesses are preferably applied in such a manner that hollow spaces free from Eloxal coating are exposed which may be utilized as recesses into which reinforcing elements are glued.

Abstract: In order to make a small space requirement, a low energy requirement and therefore an increased weaving frequency possible in a shedding apparatus, a spring drive is proposed which is connected to magnetically acting holding means. The holding means are capable of holding the heddle frame in an upper shed position and in a lower shed position counter to the spring force. Furthermore, the heddle frame is connected to a linear motor. A heddle movement can be initiated by said linear motor. According to the invention, the spring drive is configured as a tension/compression spring which is designed in such a way that, during operation of the heddle frame at the resonant frequency of the spring drive the greater part of the kinetic energy can be obtained from the spring drive.

Abstract: A shaft connecting device (18) having a thrust rod (8) and a lateral support (4) that fit into each other with minimal transverse play. In addition, the shaft connecting device (18) has a clamping device (16) with a stop arrangement (60, 60?, 66) and a fixation arrangement (30, 30?), the latter connecting the lateral support (4) and the thrust rod (8) exclusively on their respective upper ends to each other. Any opening, closing and adjusting of the connections between the thrust rod (8) and the lateral support (4) is possible in a particularly simple and convenient manner. The lateral support (4) and the thrust rod (8) support each other, thus resulting in a high dynamic load-bearing capacity. The overall design is simple, clear and cost-effective.

Abstract: A profile rod (15) preferably consisting of an extruded aluminum profile has lateral walls (18, 19) that have two snap-in zones (25, 26) that project toward each other and extend parallel to each other over the entire length of the profile rod (15) and that are located on the same height. The distances of the two snap-in zones (25, 26) from the closest strip (21) correspond to each other. In this manner, the profile rod (15) may be made extremely thin-walled, on the one hand, and offers possibilities for fastening profile pieces that permit the input of larger forces into the profile rod (15) as well as the output of such forces therefrom, on the other hand. This concept offers a basis for the construction of light-weight heald shafts that can still handle great loads.

Abstract: A shaft rod (1) having a heald mounting rail (3) glued to the rod body (2) using a space-filling adhesive (19) provided in an accommodation space (14) on the mounting rail (3) or the rod body (2) and having a greater volume than a holding section (10) formed on the rod body (2) or the mounting rail (3). Preferably, the holding section (10) and the accommodation space (14) are configured such that the two parts can only be inserted into each other with a pivoting movement. To achieve this, the holding section (10) preferably has a part (21) extending transverse to the mouth (17) of the accommodation space (14), and being wider than the mouth (17), thus extending behind a wall section or part (31, 34) of the accommodation space (14). Preferably, the accommodation space (14) and the holding section (10) are configured as hook profiles that engage each other.

Abstract: A heald frame has a frame stave, a carrier rod provided along the frame stave and a heald made of a resin material. A plurality of healds are supported by the carrier rod and arranged in a row. A magnet having N and S poles is provided in each heald and the healds are arranged so that the adjacent ends of any two adjacent magnets are of the same polarity.

Abstract: The heald shaft (1) for weaving machines is divided into a machine-resident frame part (14) and a removable frame part (15). While the removable frame part (15) supports a heald mounting rail (30) that must be released from said frame part for a heald change, said removable frame part is associated with an additional heald mounting rail (33) that is releasably held on the lower shaft rod (16). The upper shaft rod (25), together with the two heald mounting rails (30, 33), forms a removable frame part (15). The lower shaft rod (16), together with the lateral supports (19, 20), forms a machine-resident frame part. Preferably, the lateral supports (19, 20) and the lower shaft rod (16) are rigidly connected to each other.

Abstract: A heddle frame for supporting a plurality of heddles comprises a top rail separate from a bottom rail Each of the rails defines a front wall and a rear wall opposed to the front wall A carrying flange extends from the front wall of the top rail and toward the bottom rail Each of the rails carries a heddle bar disposed toward the back of the respective rail, and the top heddle bar is connected to the carrying flange The top rail defines a first cut out portion extending through a section of the carrying flange The heddle frame further includes at least one intermediate brace extending between the top rail and the bottom rail at a position aligned with the first cut out portion and configured for assisting in maintaining parallelism of the top and bottom rails.

Abstract: In the heald shaft (1) according to the invention, a coupling device (8) is provided which serves for connecting the end binder (4) with the shaft rod (3) and which has a spring-biased clamping member (18) for frictionally holding a coupling element (20) in the shaft rod (3). When required, the clamping member (18) may be moved into its releasing position against the force of the spring element (30) for releasing the coupling element (20), so that the latter may be pulled out of the shaft rod (3) alone, or possibly together with other components of the coupling device (8). Operating such a coupling device is particularly simple and requires neither particular skill nor particular attention. The coupling device (8) is adapted for shaft rods of lightweight construction.

Abstract: Heald support bar for heald shafts consists of a bent sheet metal element with unbent legs (8, 9), whereby, in the bending zones, the material thickness is reduced before or during the bending process. As a result of the compression occurring during the bending process, the material thickness in the bending region may again increase slighting during the bending process and, optionally, even return to its original value. However, in any event, an increase of the material thickness beyond the original sheet metal thickness is avoided during the bending process.

Abstract: A novel corner connector for heddle shafts has detent means with which it can be retained in a shaft rod. The load-related locking is effected independently of the detent means by a clamping device that acts between the struts of the shaft rod.

Abstract: A heald shaft (1) for coupling the shaft rods (2) with the end binders (5), having connecting joints or hinges (10) whose pivot axes (14) lie externally of the shaft rods (2) and preferably inside the end binders (5). Due to the connecting joints (10), a moment-free coupling between the shaft rods (2) and the end binders (5) is ensured. The relative pivotal motions between the shaft rods (2) and the end binders (5) appearing during operation do not generate any moment transmissions between the shaft rods (2) and the end binders (5). Preferably, the driving couplers (7) are arranged above the end binders (5) in a direct extension thereof.

Abstract: Crossbar for heald-carrying frames of weaving looms comprising a main element of the crossbar made, at least in part, of a light metallic material, such as aluminium, magnesium or alloys thereof; and a heald-carrying element made of a high-resistance material, such as steel. The heald-carrying element is steadily fastened to the main element of the crossbar by means of a lock joint, through plastic strain between a longitudinal rib projecting from the main element of the crossbar and a corresponding groove formed in the heald-carrying element.

Abstract: The heddle shaft rod (4) described originates in an extruded aluminum profile section with relatively thick side walls, which are removed in some regions and thereby made thinner. This can be done without substantial impairment to the rigidity of the heddle shaft rod, yet as a result a substantial reduction in weight is attained. The removal of material can be adapted to the local load conditions. For instance, it is possible at the ends or other force introduction points to leave unweakened thick walls, while the other regions of the side walls are milled off far enough that a uniform thinner wall thickness is attained. It is furthermore possible to vary the amount of material removed, either in multiple steps or in infinitely graduated fashion. The material removal pertains to a reduction in the wall thickness that is measured transversely to the movement direction of the heddle shaft rod.

Abstract: A heald frame includes at least one frame part (10, 14) at least one heald carrying rod (16). A multitude of projections (25, 26), which are arranged one behind the other while being situated essentially in a row, are formed from the heald carrying rod (16) while projecting therefrom by means of plastic deformation and are held inside a recess (28) or the like of the frame part (10, 14).

Abstract: The invention concerns a frame comprising two posts (4, 4?) and two cross-members (6, 6?), a catching member (8, 8?) adapted to receive one corresponding end of at least one heald (10), and damping means (12, 12?) against which at least one end of the heald is urged to be pressed. At least when the frame is stationary, the heald being substantially rectilinear, when one first end of the or each heald (10) is pressed, either on a first catching member (8) at the traction zone (S1) thereof, or on a first damping means (12) at the compression zone (C1) thereof, the other end of the or each heald (10) is pressed, either on other damping means (12?) at the compression zone (C?1) thereof, or on another catching member (8?) at the traction zone (S?1) thereof.

Abstract: For releasable attachment of heddle bars (8) to shaft rods (2) of a heald shaft (1) of a weaving machine, holding devices are provided which are composed of two sheet metal members, with one part forming a flat surface for bonding to the shaft rod (2). The parts that remains free receives respective metal ribs (31, 32), which may be riveted or welded to the sheet metal members. The reinforcing strips engage securing elements for a bracket to position the latter in a form-fitting manner. The sheet metal members are tightened against the bracket, e.g., by bolts or rivets, to firmly clamp the bracket in the desired position. The reinforcing strips are configured and secured to the sheet metal members such that the reinforcement simultaneously serves for the exact positioning of the bracket (22), and for preventing a vertical shift of the bracket during operation of the heald shaft.

Abstract: A shed forming device positions warp yarns in order to form a shed in accordance with a pattern to be woven, before inserting a weft through this shed. The positioning of the warp yarns is one potential cause of an increase or a decrease of potential energy in the shed forming device. One or several elements is added to compensate, by their change of state, partly or entirely for the decrease or increase of potential energy which is produced in the shed forming device by the positioning of the warp yarns. The change of state of the elements is effectuated without any coupling with the positioning of individual warn yarns. A weaving machine uses such a shed forming device.

Abstract: A heddle frame having two uprights and two cross-rails interconnected by at least one brace extending in a direction generally parallel to the uprights. The brace includes a rod provided with a screw fastener at opposite ends thereof, two threaded members for being screwed onto one of the opposite ends of the rod, and first and second clamping members mounted to the opposite ends of the rod and the threaded members, respectively, for exerting a clamping locking force on a portion of each cross-rail wherein the locking force results from screwing the threaded members onto the opposite ends of the rod.

Abstract: The invention relates to a heald frame comprising at least one frame part (10, 14nd at least one heald carrying rod (16). A multitude of projections (25, 26), which are arranged one behind the other while being situated essentially in a row, are formed from the heald carrying rod (16) while projecting therefrom by means of plastic deformation and are held inside a recess (28) or the like of the frame part (10,14).

Abstract: A heald (heddle) shaft (1) comprises at least one shaft rod (2) on which a damping element (12)is supported on the shaft rod carrier body (15) to be movable in the longitudinal direction of a heald or heddle (8) mounted on a shaft stave or rail (6) carried by the body (15) so as to be moveable toward and away from an abutment surface (26) of the support body (15) and an outer end surface (22) an eyelet of a heald or heddle (8) mounted on the shaft stave (6). By virtue of movably supporting the damping element (12), an alignment of the healds or heddles (8) is improved and facilitated, and a desired damping effect is obtained during the entire motion course of the healds or heddles (8).

Abstract: A heald frame including two posts, two cross members and connectors which are used for securing at least one post to at least one corresponding cross member. Each connector includes an intermediate tubular fixing element which is disposed in a housing provided in the cross member and indented with respect to a front face of the cross member and which element defines an internal volume in which a protrusion extending from the at least one post is seated.

Abstract: A shaft rod (2), wherein the heddle support rail (4) is secured in a form-fit to a profile body (9), for example in the form of an aluminum extruded profile, by projections (18) provided on the extrusion profile (9), with the projections 18 extending into substantially correspondingly shaped recesses (19) in the heddle support rail.

Abstract: A shaft rod (2) having, particularly in its mid region, a particularly low mass. The shaft rod has an upper ledge (11) and a lower ledge (12) which have a reduced thickness in the mid region of the shaft rod. As a result, the load induced by acceleration forces is significantly less in the mid region than in conventional constructions. By virtue of the reduced acceleration forces, the extent of bending of the shaft rods in the middle is less and therefore a shaft rod of such a structure is better adapted for use in very rapidly operating weaving machines.

Abstract: A shaft rod for a heddle shaft is formed by a profile body (15) and an associated additional profile body, which are joined together by a detent means (25) and additionally by an adhesive bond. The detent means (25) is embodied such that it already holds the additional profile body (19) fixed and in the correct position on the profile body (15) when the adhesive that forms the adhesive seam (33) is still liquid or viscous, or in any case has not yet thoroughly hardened. This provision makes it substantially easier to manipulate the shaft rod (4) during manufacture.

Abstract: A heddle frame comprises two uprights and two crossbeams, each of which is provided with a catching member adapted to receive a corresponding end of at least one heddle, while there are also provided damping means, mounted to at least one corresponding catching member, which are placed opposite surfaces for direct abutment of the catching member against the at least one heddle. The catching member is formed by at least one bent metal sheet retains the damping means by cooperation of their complimentary shapes and/or by adhesion.

Abstract: A heddle shaft (1) has shaft rods (2, 3), which are embodied as profile bodies (12) having at least one hollow chamber (14). The shaft rods (2, 3) are joined together by lateral bracing posts (4, 5) and at least one center connector (11). For securing the latter, retaining pieces (23) are disposed in the hollow chambers and are accessible through windows (22). The retaining pieces (23) are preferably glued into the hollow chamber (14) and have one or more threaded bores for securing the center connector (11) by means of screws (37).

Abstract: A heald shaft for weaving machine has a shaft rod (3) which is formed of a one-piece light-metal profile and two stiffening bodies (24, 25) glued to the shaft rod (3). The stiffening bodies bridge the entire width of the shaft rod (3), wherein the width is measured between the side walls (11, 12). The chambers 14, 16 for receiving the stiffening bodies (24, 25) each have at least one open side through which the stiffening body is visible from the outside and through which it may be introduced into the respective chamber (14, 16). This construction facilitates manufacture. Further, a rigidity in the working direction, as well as a good rigidity transversely thereto is achieved.

Abstract: A heddle shaft is formed of a hollow metal profile section into which an expanding element for vibration damping is inserted. The expanding element is for example a precompressed foam strip which expands after insertion into the internal chamber of the hollow metal profile section until it is seated with a certain initial tension between the side walls of the hollow metal profile section. It is embodied as a solid (non-liquid) body and is introduced as such into the internal chamber. For being locked in place, it can be provided with adhesive faces.

Abstract: A heald frame for a weaving machine includes stops (15, 16) made of a material with shock-absorbing properties associated with the ends of the healds (10). A gap is provided between the heald ends and the stops, such gap ensuring that the healds can be moved along guide rails forming part of the heald frame while reducing noise and potentially damaging vibrations. The healds are held on the guide rails with play and are moved by and limited in their movements in a longitudinal direction by the stops.

Abstract: The present invention relates to a method for manufacturing a crossbeam for a heddle frame of a loom allowing to make, at low cost and without waste, a lightweight and very rigid crossbeam, whose heddle-support rod is positioned on the support section in an accurate position that is completely linear, controlled and capable of being reproduced. This manufacturing method is characterized in that one uses a rigid template that has at least one rectilinear groove having a width substantially equal to that of the heddle-support rod; one positions the non-rigid heddle-support rod in the groove to make it rectilinear; one lays a glue line on the junction zone; one positions a rigid support section that is not necessarily rectilinear in a predetermined manner on the template and on the heddle-support rod by flattening the glue line, and one maintains the support section and the heddle-support rod integral with the template, at lease while the glue is setting.

Abstract: On the one hand, this invention relates to a harness device for a weaving machine comprising an apertured board provided with threading openings (9) for pulling through a series of harness cords (2), this apertured board being composed of at least two separate detachable small partial apertured boards (1) and a method for building up such a harness device on the other hand.

Abstract: In a connection of a shaft rod to a side strut of a heddle shaft there is at least one guide surface provided in or on the shaft rod. The guide surface extends substantially parallel to the longitudinal axis of the shaft rod. The guide surface engages with a positive fit to a second guide surface extending along a projection of the side strut substantially parallel to the shaft rod or perpendicular to the side strut.

Abstract: The present invention relates to a method for manufacturing a crossbeam for a heddle frame of a loom allowing to make, at low cost and without waste, a lightweight and very rigid crossbeam, whose heddle-support rod is positioned on the support section in an accurate position that is completely linear, controlled and capable of being reproduced. This manufacturing method is characterized in that one uses a rigid model that has at least one rectilinear groove having a width substantially equal to that of the heddle-support rod; one positions the non-rigid heddle-support rod in the groove to make it rectilinear; one lays a glue line on the junction zone; one positions a rigid support section that is not necessarily rectilinear in a predetermined manner on the model and on the heddle-support rod by flattening the glue line, and one maintains the support section and the heddle-support rod integral with the model, at least while the glue is setting.

Abstract: In a connection of a shaft rod to a side strut of a heddle shaft there is at least one guide surface provided in or on the shaft rod. The guide surface extends substantially parallel to the longitudinal axis of the shaft rod. The guide surface engages with a positive fit to a second guide surface extending along a projection of the side strut substantially parallel to the shaft rod or perpendicular to the side strut.

Abstract: A heddle includes a plurality of passages spaced from each other in a first direction for guiding warps, respectively, and a retainer provided in each of the passages for retaining a corresponding warp. Each of the guide passages is defined between a first surface and a second surface. The retainer includes an upper projection extending between the first surface and the second surface, and a lower projection extending between the first surface and the second surface. The upper projection and the lower projection define a warp retaining space which is accessible from the guide passage via a clearance.

Abstract: A heddle frame includes a top rail and a bottom rail connected at their ends with end members to form a rectangular frame. An adjustable center brace assembly extends between the top and bottom rails, and includes an elongated brace extending through the top rail with a bottom end adjustably and lockingly engaged with the bottom rail. The brace may have a multi-sided head at the top thereof configured to be engaged by a conventional driving tool. A locking block is disposed over the multi-sided head and is a removably attached to the top rail. The locking block has a recess defined in the underside thereof with a width corresponding generally to that of the multi-sided head for rotationally locking the head and center brace. The head of the brace has a width so as not to extend beyond the sides of the top rail, and the head can be rotated with a conventional driving device without removal of the heddle frame from the textile machine, or interfering with adjacent heddle frames.

Abstract: A heddle shaft is formed of shaft rods which have hollow ends containing inserts fixedly positioned therein and lateral supports which include projections that respectively extend into recesses in the inserts. Clamping screws, which can extend through the shaft rods, apply a compressive force to clamp the projections in place and create detachable corner connections between the shaft rods and the lateral supports.

Abstract: A harness frame of light weight manufactured from a laminated plate material is disclosed. The laminated plate material comprises (a) a composite material layer comprising a resin matrix and a reinforcing layer formed of reinforcing fibers and (b) metallic layers superposed one each on the opposite surfaces of the composite material layer. In a preferred mode, resin sheets and reinforcing layers of reinforcing fibers are alternately superposed, two metallic layers are set in place one each on the vertically opposite surfaces of the superposed layers, and the layers are heated and compressed with a pressing machine to induce thermal welding of the component layers. The laminated plate material has the metallic layers superposed with high adhesive strength on the opposite surfaces of a composite material layer having a plurality of reinforcing layers embedded in a resin matrix.

Abstract: A heddle frame has a pair of laterally extending slats and a pair of end braces connected to the slats to form a generally rectangular frame. An elongated opening is defined at least in the ends of the slats, and typically throughout the slat. A locking mechanism is configured to lock the end braces to the slats and typically includes a device housed at least in part within the slats. A corner sleeve member is adhesively fixed on the slats at the ends thereof directly adjacent to the end braces to structurally reinforce the slats at the position of the locking mechanism.

Abstract: Each of the heddles of a shaft device for a weaving machine has a thread eyelet and end eyelets arranged on both sides of the thread eyelet, so that the heddles can be arranged in rows on heddle slide bars. At least the driving heddle slide bar has at least one thin leg that projects transversely to the plane formed by the heddle slide bar and engages a driving groove of the corresponding end eyelet of the heddle with limited play. In spite of the limited play, the heddles can be spread to a sufficient extent on the heddle slide bars. This limited play allows a better driving performance, with reduced noise level and wear, in comparison with known shaft devices.