Abstract: In one embodiment of the present application, a knitting method is disclosed for a knitting fabric capable of eliminating the need of stitch transfer during knitting and easily knitting even a thick and less stretchable knitting fabric. Three types of stitching including knits marked with “O,” tacks marked with “V,” and missings marked with “-” are knitted repeatedly in a course direction and a wale direction. The thickness of the clothing fabric of a knitted product is 1.5 times that by plain knitting or thicker which is equal to a thickness obtained by rib knitting. The elongation of the knitted product in the course direction is approximately 1.5 times that by the other methods which is approximately half an elongation obtained by plain knitting which is approximately three times that by the other methods. The elongation of the knitted product in the wale direction is approximately 1.7 to 1.8 times that obtained by the other methods which is equal to an elongation obtained by plain knitting.

Abstract: A vibration damping device is described that dampens vibration produced during the conversion of rotational motion into reciprocal motion. The damping is performed using a simple structure wherein first and second conversion mechanisms are symmetrically arranged with respect to a plane of symmetry, first and second rotating shafts rotate opposite to each other at a constant speed, and the rotational motion is converted into reciprocal motion. The total of mass acting on gravity centers of a first balancer and a second balancer is approximately equal to the total of mass reciprocally driven by a first driving shaft and a second driving shaft. Both gravity centers are positioned 180 degrees to the first driving shaft and second driving shaft across the axes of the first rotating shaft and second rotating shaft. As a consequence, the forces in the direction of an axis can be balanced suppressing vibration.

Abstract: An object of the invention is to provide a simulation method and a simulation apparatus of the image of a twisted yarn capable of forming an image close to the actuality. When the images of twisted threads (1, 2) are inputted, abstracted models (3, 4) of the twisted yarns having a constant elliptical cross-section are obtained as shown in (b). A projected image (6) of the twisted yarns as shown in (c) is obtained when the models shown in (b) are viewed from the right side and one of two abstracted models (3, 4) located on the left side is concealed. The projected image (6) of the twisted yarns is formed by copying the images of the twisted yarns (1, 2) on to parts corresponding to the abstracted models (3, 4) of respective twisted yarns.

Abstract: An object of at least one embodiment of the present invention is to stably feed a yarn by suppressing the effect of inertia in a buffer mechanism provided in a yarn feeding path. In at least one embodiment, a yarn feeder of the weft knitting machine feeds a knitting yarn from either of ends of a needle bed through a yarn feeding member to a knitting needle which carries out knitting motion based on knitting data while reciprocating the yarn feeding member in a longitudinal direction of the needle bed. A buffer rod is provided in the feeding path for the knitting yarn. Before the yarn feeding member starts to feed the knitting yarn to the knitting needle. a yarn feed controller carries out control to feed out the yarn to the buffer rod beforehand in a moving direction in which the feeding path is extended and to pull back the yarn stored in the buffer rod in a moving direction in which the feeding path is reduced.

Abstract: A complex cam system capable of using a compound needle as a knitting needle is disclosed. In one embodiment of the present invention, a needle raising cam, a transfer cam, and knitting cams act on a butt provided in a needle body of the compound needle. A slider cam acts on a butt provided in a slider of the compound needle. Guide paths in transfer for the needle body and the butt of the slider are constituted with delivering paths and receiving paths, and switched from knitting paths. In the delivering paths, a transfer operation by the compound needle can be carried out smoothly using two knobs in a three knobby-shaped paths.

Abstract: First and second grippers are moveable in the longitudinal direction along needle beds of the weft knitting machine and in a direction that is closer to and away from a needle bed gap of the needle beds, switchable between a state of not holding a yarn and a state of holding the yarn, and moveable independently of each other. A cutter for cutting the yarn is provided on the first gripper. A control section controls the movements and the switching of the states of the first and second grippers, and the cutter so that in a state where the yarn is held by the first gripper and the second gripper, the held yarn is cut with the cutter. The end yarns generated by cutting the yarn with the cutter are not left in cut state, but treated by the first gripper and the second gripper independently of each other.

Abstract: When knitting a tubular knitted fabric having a difference in the number of wales between a front knitted fabric and a back knitted fabric, knitted fabrics are knitted alternately while turning the tubular knitted fabric and jointing the front section having a large number of wales at middle portions. In one example embodiment, turning is performed such that one boundary of boundaries coupling the fabrics is positioned between front and back needle beds. The numbers of wales of the fabrics caught on the needle beds on both sides are equalized and the fabric of the front section having a large number of wales is knitted from one boundary to the joints at a middle portion of the knitting width. Subsequently, the tubular fabric is turned such that the other boundary is positioned between the needle beds, and the fabric is knitted from the boundary of the front section to the joints and then coupled.

Abstract: There are provided a movable sinker apparatus of a weft knitting machine and a sinker which are capable of holding and pressing down a knitting yarn of a previous loop and sufficiently pulling down a knitting fabric. At forward positions of the sinkers, second protruding portions are close to each other, and thus a knitting fabric can be sandwiched therebetween. When the front and rear needle beds are faced each other so as to be symmetric at the needle bed gap, the forces of the wire springs are applied so as to pull down the knitting fabric in the vertical direction. A knitting yarn receiving portion is formed on a first protruding portion of the front end portion on the sinker, and thus it is possible to retain a knitting yarn of a previous loop and prevent the knitting yarn from moving as the knitting needle moves forward.

Abstract: An object of the invention is to display an image having the feeling close to that of a knitted fabric actually knitted with a fuzzy knitting yarn. At least part of knitting yarn image data (1) on a knitting yarn with much fuzz (2) is divided into certain lengths in a length direction in which the knitting yarn image data (1) extends, and is divided into a mesh (5) in an intermediate yarn main frame region and meshes (3, 4) in fuzz regions on both sides thereof in a width direction. Each of the meshes (3, 4, 5) is deformed in accordance with a stitch loop (6) constituting the knitted fabric to form deformed meshes (7, 8) in the fuzz regions and a deformed mesh (9) in the yarn main frame region. In this deformation, the ratio of the deformed meshes (7, 8) in the fuzz regions to the meshes (3, 4) in the fuzz regions is set smaller than the ratio of the deformed mesh (9) in the yarn main frame region to the mesh (5) in the yarn main frame region.

Abstract: An object of the invention is to be capable of easily acquiring a fabric having a desired feeling using a stretch yarn. A knitting controller (20) controls a carriage (5), and the like, according to knitting data and control data stored in a memory (21). Data representing relationships between a gauge texture and a stitch loop length being obtained after knitting and the relationships between these gauge texture and stitch loop length and the length and tension of the stretch yarn (2) being fed at the time of knitting are collected previously and stored in the memory (21) in the form of table data. The knitting controller (20) sets control target values of the length and tension of the stretch yarn (2) for a yarn feed controller (23) such that a gauge texture and a stitch loop length being specified by an input unit (22) can be attained, with reference to the table data stored in the memory (21).

Abstract: In order to switching yarns used for knitting by switching a plurality of yarn feeders, a knitting member switching apparatus is provided. The knitting member switching apparatus includes a plurality of holders provided on a side of a carriage, a stopping device provided on an end portion such as a left side end on a needle bed. The stopping device includes a plurality of stopping stands and switching mechanisms in correspondence with the holders, and is further provided with a control device for letting the carriages travel and for selecting knitting needles based on knitting data.

Abstract: A pile knitting method by a weft knitting machine is provided in which a compound needle can be used to form a pile stitch and simultaneously hold other stitches. After a hook of a needle body receives a fastening yarn fed thereto, a carriage brings together a yarn feeder for feeding a pile yarn and the hook receives the pile yarn. On a front needle bed, the needle body is raised to a tuck position in a state where an old loop is set on a tongue of a slider. The hook of the needle body holds therein the fastening yarn. When the pile yarn is fed to the hook from the yarn feeder, the hook holds therein the fastening yarn and the pile yarn. The pile yarn is set also on a tongue of a slider on a rear needle bed, which tongue has been already raised and advanced into a needle bed gap.

Abstract: A yarn feeder can be stopped at a stopping mechanism and attached to and detached from a holder. The holder is fitted to a front end of a holding arm. The carriage-side holding arm is held by a moving member holding mechanism. The moving member holding mechanism includes a bringing state switching mechanism to switch the bringing state of the moving member by the carriage. The bringing state switching mechanism acts on a coupling portion on the carriage side, and can shift the bringing position of the moving member holding mechanism relative to the carriage and perform the switching to a position where the moving member holding mechanism is not brought. A rail is provided such that the yarn feeder's position does not change even when the moving member holding mechanism is separated from the carriage. The rail is installed to be parallel with a needle bed's longitudinal direction.

Abstract: On each of carriages are disposed a group of transfer cams and a group of receiving cams. A leftward movement of the carriages makes it possible to transfer a knitted loop from a front needle bed provided with one carnage to a rear needle bed provided with another carriage. A rightward movement of the carriages makes it possible to transfer the knitted loop from the rear needle bed provided with the other carriage to the front needle bed provided with one carriage. The transferring can be freely carried out between the needle beds, and it is possible to temporarily place a knitted loop from one needle bed to another needle bed and keep a holding, and further retain the knitted loop separately from a fabric being knitted on the other needle bed and when needed, return the knitted loop from the other needle bed to the one needle bed.

Abstract: A carriage which completes one course of knitting to the knitting end of a fabric is stopped. Knitting in a next course is performed when the carriage reverses its moving direction and re-starts its movement. Since the knitting yarn is not knitted to the fabric until a carrier brought by the carriage reaches a position of a knitting needle holding the stitch of the fabric at the knitting end, the knitting yarn existing in a feeding path between a yarn feeding mechanism and the carrier is excessively increased and a slack is generated. Since a distance between a yarn feeding port formed at a carrier's frontal end and the knitting needle at the fabric-knitting end is also reduced, the knitting yarn is further increased excessively. The further-excessively-increased knitting yarn is taken in by a yarn feeding means by reversing a servomotor, and further pulled in by a rewinding arm.

Abstract: A permanent magnet applies first sliding resistance in-between a holding arm and a guide rail. A carriage is provided with an electromagnet for magnetically applying second sliding resistance in-between the holding arm and the carriage. Although the holding arm persists in moving through inertia when the carriage stops movement, a sliding resistance that is the sum of the first sliding resistance and the second sliding resistance acts on the holding arm, and it is possible to promptly stop. Since the second sliding resistance does not act when the carriage brings the holding member, it is possible to reduce a load. When the carriage starts bringing the holding arm, a difference between the first sliding resistance and the second sliding resistance becomes the sliding resistance, and it is possible to decrease sliding resistance that acts when bringing is started, and reduce occurrence of an impact and a noise.

Abstract: A needle selecting apparatus for a weft knitting machine capable of performing a needle selecting position locking function without moving a selecting jack forward and backward is provided. In the needle selecting apparatus, an initial position of the selecting jack is set at a welt position to ready for non-operation. And when a butt is pressed by a B presser of a carriage, the selecting jack comes into a locked condition by a locking member. The selecting jack is sunk into a needle groove in the locked condition and the butt of a knitting needle is also sunk into the needle groove to separate from a knitting cam. When a knitting position or tucking position is selected by a needle selection actuator, a selector is driven by a selector cam, and a tip of the selecting jack presses a contact portion of the selecting jack to move the selecting jack rightward. During the movement, the locking member is drawn to release the locked condition.

Abstract: When bringing pins (2) are engaged with the yarn carrier at the engagement portions (3a, 3b) near the center of the yarn carrier, the yarn carrier, as a normal carrier, feeds the yarn so that the yarn is applied to a knitting needle performing knitting operation by a carriage. When the bringing pins (2) are engaged with the yarn carrier at the engagement points (4a, 4b) near the rear side thereof in the travel direction, the yarn carrier, as an inlay carrier, feeds the yarn in preference to the knitting operation so that the yarn is not applied to the knitting needle performing the knitting operation by the carriage. When the projection portions (6a, 6b) of engagement releasing members (5a, 5b) are pressed by the contact thereof with the stopper, the engagement releasing members (5a, 5b) are moved backward, and slope portions (7a, 8a; 7b, 8b) push up the bringing pins (2) engaged with the yarn carrier at the engagement points (3a, 4a; 3b, 4b) so as to release the engagement.

Abstract: A fitting room (11) as a dressing room is adapted to have its entrance (12) opened and closed by drawing a curtain (14). The curtain is suspended from the tip ends of beam members of a curtain suspension apparatus (15) mounted on a ceiling plate (17). When closing the entrance (12), the curtain suspension apparatus (15) can deploy the curtain (14) in such a manner as to spread it outwardly relative to the fitting room (11) with respect to the entrance (12). The interior space closed with the curtain (14) can thus be enlarged when the curtain (14) is closed to use the fitting room (11). When the curtain (14) is opened, the space that was occupied by the curtain (14) when it was closed can be used for other purposes.

Abstract: A movable sinker (8) can move a tip portion (8c) forward and backward relative to a needle bed gap (2) through pivotal displacement by setting, as a support point, a concave portion (5a) of a needle plate (5). A wire spring (10) energizes the movable sinker (8) so that the tip portion (8c) is moved forward into the needle bed gap (2). A stopper (20) on which an abutment portion (8e) of the tip portion (8c) of the movable sinker (8) abuts to control the movable sinker (8) to be pivotally displaced by the energization of the wire spring (10) is provided in a position in the bottom portion of the base (4) near the needle bed gap (2). The maximum amount of press-in of the tip portion (8c) of the movable sinker (8) is regulated by an abutment of the abutment portion (8e) on the stopper (20). The stopper (20) can adjust a forward and backward movement amount relative to the needle bed gap (2) by a position adjusting mechanism (21).