JP5723763B2 - Knitting machine - Google Patents

Description

The present invention is a knitting machine having at least one needle bed, wherein an insertion member, particularly a knitting needle, is provided in a needle groove of the needle bed so as to be movable in the longitudinal direction, the insertion member has a drive bat, If not selected, the drive butt does not protrude from the upper side of the needle bed.

  By lifting the drive bat of the insertion member, the bat can be engaged with the cam curved surface of the knitting system and can be reciprocated in the needle groove according to the transition of the cam curved surface. Depending on when the drive bat is lifted from the needle bed, the drive bat can be captured by different cam curved surfaces, thereby realizing a so-called multi-way technique. When the insertion member is a knitting needle, the knitting needle forms a stitch or a tack can be inserted in accordance with the cam curved surface that captures the drive bat. If the bat is not lifted, the bat will remain in the inactive position. For example, so-called presser cams are known in order to cause the drive bat to sink to the needle bed so that the movement of the insertion member by the knitting system does not take place. With these cams, the needle drive butt is pushed into the needle bed at a particular point in time, thus disengaging from the cam. On the other hand, in the lifting cam, the drive bat of the needle or other insertion member is lifted by the cam or other insertion member. After passing the cam, the drive bat is pushed back to the needle bed actively or by spring force.

  Since presser cams and lifting cams are relatively expensive in their construction, cams with different operating points have also been proposed, bringing additional elements that are mated with the needles into a position where they can be elastically stressed. Fixed. This fixation is released at a particular cam passage point, thereby causing the needle drive butt to engage the cam. Further, needles having an elastic needle stem are known, and a drive bat is provided at the end of the needle stem, and the spring force of the needle stem keeps the drive bat in a position where it is submerged into the needle bed. However, since these needles are very unstable, if the drive bat is subjected to the action of a cam curved surface, the needles may bend in the longitudinal direction.

  In all solutions, in addition to the reliable lifting and sinking of the drive bat of the insert member, when the drive bat of the insert member does not engage the cam surface, i.e. the drive bat is in the inoperative position or the drive bat is lifted It is also important that the insertion member does not perform undesired movements, particularly forward movements, in the longitudinal direction of the needle groove when it is not.

  The problem underlying the present invention proposes a knitting machine in which the movement of the insertion member in the longitudinal direction is reliably prevented or at least limited when the drive bat of the insertion member is sinking to the needle bed. That is.

This problem is a knitting machine having at least one needle bed, wherein an insertion member, in particular a knitting needle, is provided in the needle groove of the needle bed so as to be movable in the longitudinal direction, the insertion member has a drive bat, If not selected, at least one stopper surface is formed on the insertion member in the case where the driving butt does not protrude from the upper side of the needle bed, and when the driving bat of the insertion member is sunk into the needle bed, the stopper surface is This is solved by abutting at least one constraining surface oriented transversely to the longitudinal direction .

  The knitting machine constructed according to the invention at least limits the longitudinal movement possibilities of the insertion member that is not selected or in the process of selection, or completely eliminates such longitudinal movement possibilities. If the insertion member is a knitting needle, this prevents the needles from being pulled unintentionally forward by a force acting in the direction of needle movement through the yarn, even if the needle is not selected. Can do. Thereby, it is possible to avoid a collision with the opposing needle and an adverse effect on the stitches in the needle hook.

  Furthermore, if the knitting machine is configured so that the stopper surface no longer abuts the restraining surface only when the drive butt is fully lifted from the needle bed, the longitudinal movement of the insertion member is also eliminated during the selection process. be able to. This is particularly important when the drive butt is lifted via a second insert member that is pushed below the drive bat in the longitudinal direction of the first insert member. The force component acting in the longitudinal direction on the insertion member to be selected by the forward movement of the selection insertion member can thereby be compensated. In this case, the abutment surface of the insertion member need not always abut against only one constraining surface during the selection process. For example, the abutment surface may first abut against the first constraining surface and then abut against the second constraining surface. it can.

One or a plurality of constraining surfaces are configured as stepped portions at the needle groove bottom of the needle bed, for example. In that case, when the drive bat sinks, at least one stopper surface of the insertion member is in contact with the step until the drive bat is lifted greatly.

  However, it is also possible for the at least one constraining surface to be formed by a line extending transversely to the longitudinal direction of the insertion member. Lines or strips that run sideways across the needle bed provide a structurally simple and inexpensive possibility of manufacturing the constraining surface for each needle groove.

  However, at least a part of the constraining surface can be provided on the cam. In this case, the stopper surface of the insertion member can be provided on the drive bat of the insertion member as much as possible.

  When a line is provided to form the constraining surface, the stopper surface of the insertion member has a U-shaped cross section as much as possible, and the line can be introduced between both leg sides of the U of the stopper surface. In this way, the insertion member is restrained in both movement directions along the needle groove. Additionally or alternatively, an abutment surface can be provided that forms a flat surface that is oriented transversely to the longitudinal direction of the insert.

  In this case, the stopper surface may in principle be provided at an arbitrary position of the insertion member, but is provided in the range of the drive bat as much as possible. This is particularly advantageous if a drive butt is provided at the rear end of the insertion member. When the bat is sunk in the needle bed, the stopper surface is also immersed in the needle bed and can cooperate with the restraining surface provided there.

  The constraining surface and / or the abutment surface can be made from a material with as little wear as possible, or can be provided with a coating that reduces wear, or can be heat treated. In addition to providing a suitable coating, the exterior of these surfaces by another member is also a problem. Wear can also be reduced by geometrical formation of the abutment surface and the constraining surface. For example, a surface can be defined by a rounded edge and / or the surface itself can be curved.

  In a preferred configuration of the knitting machine, the drive bat can be lifted in the opposite direction to the spring force acting on it. This means that at the end of selection of the insertion member, the drive bat automatically returns to the initial position where it has sunk into its needle bed. Thereby, a needle bed having a narrow width as viewed in the longitudinal direction of the needle groove is manufactured. This is because it is only necessary to provide a drive element, for example in the form of a lifting sinker, in order to lift the drive bat. In this case, the cam can be formed relatively easily. The presser cam technology can be eliminated.

  A similar advantage can be obtained if the insertion member is swingably provided in the needle groove and the drive butt can be lifted by a swinging motion of the insertion member. Again, the insertion member can be configured to automatically take its initial position where the drive bat sinks to the needle bed if the insertion member is not subjected to the action of the selection element.

  In order to realize a particularly simple cam structure, it is further advantageous if the insertion member has only one drive butt. In that case, it is only necessary to provide a suitable cam curved surface in the knitting system for this one bat.

  The knitting needle is composed of one part or a plurality of parts.

  A preferred embodiment of a needle bed with an insertion member of a knitting machine according to the invention is described in detail below with reference to the drawings.

  The cross section of the needle bed in the range of the needle groove with the knitting needle and lifting sinker as the insertion member is shown at different stages of the knitting needle selection process.   The cross section corresponding to FIG. 1 of the second needle bed is shown at different stages of the knitting needle selection process.   FIG. 3 shows a cross section of the needle bed of FIG. 2 with another configuration of knitting needles at different stages of the selection process.   A cross section of a third needle bed with lifting sinkers and knitting needles is shown at different stages of the knitting needle selection process.   2 shows a cross-sectional view of the needle bed of FIG. 1 with another configuration of knitting needles during different stages of the knitting needle selection process.   A cross section of a fourth needle bed with lifting sinkers and knitting needles is shown at different stages of the knitting needle selection process.

  FIGS. 1A to 1C show a cross section of the needle groove 10 of the first needle bed 100 in which the knitting needle 1 is inserted, and only one driving butt 13 of the knitting needle is provided on the flexible leg 12 of the needle stem 11. It has been.

  FIG. 1 a shows the initial positions of the knitting needle 1 and the lifting sinker 2 when the knitting needle 1 is not selected. The drive bat 13 does not protrude beyond the needle band covering band piece 200 that prevents the knitting needle 1 from falling off the needle groove 10. The lifting sinker 2 is also prevented from falling off by a suitable strip 210. The lifting sinker 2 has a butt 22 that can be engaged with a cam (not shown) so that the lifting sinker 2 can move in the longitudinal direction. In FIG. 1a, the lifting sinker 2 is in the inoperative position. The drive bat 13 of the knitting needle 1 is almost completely submerged in the needle bed 100. The drive bat 13 has a stopper surface 14 on the side close to the needle stem 11, and the stopper surface 14 is in contact with the restraining surface 101 of the needle bed 100. The lifting sinker 2 has a slope 21 on the side close to the knitting needle 1, and the slope 21 can come into contact with the slope 15 of the drive bat 13 of the knitting needle 1 by the movement of the lifting sinker 2 toward the mouth gap 300. .

  Now, as shown in FIG. 1 b, when the lifting sinker 2 is moved in the direction of the arrow 30, the inclined surface 15 of the knitting needle 1 slides upward on the inclined surface 21 of the lifting sinker 2, whereby the drive bat 13 is moved in the direction of the arrow 40. Lifted to. In the intermediate position shown in FIG. 1b, since the drive butt 13 of the knitting needle 1 remains in contact with the restraining surface 101 of the needle bed, the knitting needle 1 is not moved together in the direction of the arrow 30 as well.

  FIG. 1 c shows the lifting sinker 2 in the foremost position. At this position, the tip of the inclined surface 21 is in the groove 102 below the stopper surface 101 of the needle bed 100. The lifting sinker 2 now forms a needle groove floor with respect to the knitting needle 1 and the drive bat 13 of the knitting needle 1 is fully lifted. The drive bat 13 can now be captured by a cam not shown here and the knitting needle 1 can be pushed out.

  2a to 2c show a cross section of the second needle bed 100 ', and the knitting needle 1 and the lifting sinker 2 are again inserted into the needle groove 10' as shown in FIG. However, here the constraining surface 120 is formed by a line 120 that is stretched laterally through the needle groove 10 ′ and is not on the stopper surface 14 of the knitting needle 1 unless the drive butt 13 is fully lifted to the position shown in FIG. Abut.

  3A to 3C are sectional views of a needle bed 100 'corresponding to FIGS. 2A to 2C. In the needle groove 10', a knitting needle 1 'formed instead is inserted, and U Since the stopper surface 16 with a letter-shaped cross-section is held at its drive butt 13 ', as long as the drive bat 13' is fully sunk (Fig. 3a) or held in the intermediate position shown in Fig. 3b. The line 120 can be introduced between the U leg portions of the stopper surface 16. Only when the drive butt 13 'is fully lifted as shown in FIG. 3c, the drive bat 13 can slide beyond the line 120, i.e. the knitting needle 1', since the line 120 is outside the legs of the stopper face 16. Can perform extrusion and retraction movements.

  4a to 4e again show a cross section of the needle bed 100 with the knitting needle 1 and the lifting sinker 2 according to FIG. However, here, a cam plate 140 having a cam 130 is provided on the needle bed 100, and the stroke in the longitudinal direction of the knitting needle 1 is limited from the specific flying height of the drive bat 13 exceeding the upper side of the needle bed.

  FIG. 4 a shows the lifting sinker 2 and the knitting needle 1 in the inoperative position. The drive bat 13 is completely submerged in the needle bed 100. In FIG. 4b, it is lifted to an intermediate position. At this position, the stopper surface 14 is still in contact with the restraining surface 101 of the needle bed. Further, the cam 130 forms another stopper surface for the driving bat 13, and thus the front end surface of the driving bat 13 also forms a stopper surface. In FIG. 4c, the drive bat 13 of the knitting needle 1 is fully lifted. The restraining surface 101 no longer acts. However, the cam 130 continues to engage with the drive bat 13 as a restraint surface. Only when the cam 130 is lifted to the surface of the cam plate 140, as shown in FIG. 4d, all the constraining surfaces 101 and the cam 130 do not engage the knitting needle 1, so that the knitting needle 1 can now move freely in the longitudinal direction. Can do. In FIG. 4e, when the cam 130 is moved over, the drive bat 13 is released.

  FIGS. 5a to 5c show sectional views of the needle bed 100 corresponding to FIGS. 1a to 1c, and a knitting needle 1 ″ having a third configuration is inserted near the lifting sinker 2. This needle. 1 ″ differs from the needles 1 and 1 ′ in that the drive bat 13 ″ is provided here on a rigid leg 17 which is not flexible here. In the advancement of 2, not only is the drive butt 13 ″ lifted, but the entire needle 1 ″ is swung as shown in FIGS. 5 b and c. However, the constraint of the knitting needle 1 ″ in the pushing direction is that of FIG. As in the case of the knitting needle 1, the operation is performed via the stopper surface 14 ″ on the drive butt 13 ″ and the restraining surface 101 on the needle bed 100.

  6a to 6d show a cross section of another needle bed 100 ", in which a knitting needle 1" "having a fourth configuration is shown in addition to the lifting sinker 2. The knitting needle 1" "is a drive bat 13". It has a recess 18 on the underside of ″ and the line 120 ′ can enter this recess 18 when the drive butt 13 ″ ″ sinks to its inoperative position, as shown in FIG. 6 a. The width of the point 18 is larger than the diameter of the line 120 ', so that the knitting needle 1 "" moves in the longitudinal direction within a range of the width of the recess 18 minus the diameter of the line 120'. In the inoperative position, the knitting needle 1 "" has a certain amount of play in the longitudinal direction. Figs. 6a and 6b show the knitting needle 1 "in the inoperative state of the drive bat 13" ". ′ Shows the end position of the longitudinal movement of line ′. In FIG. 'Abuts on and is in contact with the stopper 18' in the right in FIG. 6b.

  FIG. 6 c shows how the drive bat 13 ″ ″ is lifted by the movement of the lifting sinker 2 towards the knitting needle 1 ″ ″. At this time, the stopper surface 18 'of the recess 18 comes into contact with the line 120', whereby the knitting needle 1 "" is restrained from moving forward. When the lifting sinker 2 is moved further forward, the drive butt 13 '' '' is lifted to its operating position, as shown in FIG. 6d. In this position, the knitting needle 1 ′ ″ is captured by a cam (not shown) and is pushed and retracted by the cam.

Claims (9)

A knitting machine having at least one needle bed, wherein the knitting needles (1, 1 ′, 1 ″, 1 ′ ″) are placed in the needle grooves (10, 10 ′) of the needle bed (100, 100 ′). The knitting needles (1, 1 ′, 1 ″, 1 ′ ″) are provided so as to be movable on the needle groove bottom in the longitudinal direction, and the drive bats (13, 13 ′, 13 ″, 13 ′ ″). ) And the knitting needles (1, 1 ′, 1 ″, 1 ′ ″) are not selected, the drive bat (13, 13 ′, 13 ″, 13 ′ ″) is connected to the needle bed (100, 100 ′). ) Which does not protrude from the upper side,
When the drive bat (13, 13 ′, 13 ″, 13 ′ ″) is provided at the rear end of the knitting needle (1, 1 ′, 1 ″, 1 ′ ″), the needle groove is not selected. Being submerged into a recess in the bottom,
At least one stopper surface (14, 14 ′, 14 ″, 18 ′, 18 ″) is formed on the knitting needle (1, 1 ′, 1 ″, 1 ′ ″), and the knitting needle (1, 1 ′, 1 '', 1 ''') of the drive butt (13, 13', 13 ''',13''') when is subsidence into the recess of Harimizosoko, stop surface (14, 14 ', 14 ″, 18 ′, 18 ″) on at least one constraining surface (101, 120, 120 ′, 130) oriented transversely to the longitudinal direction of the knitting needle (1, 1 ′, 1 ″) Abutting ,
The constraining surface (101, 120, 120 ') is perpendicular to the longitudinal direction of the knitting needle in the step portion having a surface perpendicular to the longitudinal direction of the knitting needle in the recess of the needle groove bottom or in the recess of the needle groove bottom. Formed as a line (120) stretched in parallel to the needle groove bottom in a plane,
A lifting element (2) is provided in the recess in the bottom of the needle groove so as to be movable in the longitudinal direction of the knitting needle, and is moved below the drive bat (13, 13 ′, 13 ″, 13 ′ ″) by forward movement. This allows the drive bat (13, 13 ′, 13 ″, 13 ′ ″) to be lifted from the recess in the needle groove bottom by the lifting element (2) , and
The knitting needles (1, 1 ′, 1 ″, 1 ′ ″) are restrained surfaces during the lifting of the drive bat (13, 13 ′, 13 ″, 13 ′ ″) by the forward movement of the lifting element (2). (101, 120, 120 ′, 130) can be restrained by the contact of the stopper surface (14, 14 ′, 14 ″, 18 ′, 18 ″), and the drive bat (13, 13 ′, 13 ′). The stopper surface (14, 14 ') to the restraining surface (101, 120, 120', 130) is only when the lifting element (2) is completely lifted from the recess in the needle groove bottom by the lifting element (2). , 14 ″, 18 ′, 18 ″) . The constraining surface is formed as a line (120), the stopper surface (16) of the knitting needle (1) has a U-shaped cross section, and the line (120) extends between the U legs of the stopper surface (16). The knitting machine according to claim 1 , wherein the knitting machine can be introduced. Knitting needles (1 ''') is a line (120' has a recess (18) for), wherein the width of the recess (18) is larger than the diameter of the wire (120 '), in claim 2 The knitting machine described. The knitting machine according to one of claims 1 to 3 , characterized in that at least a part of the constraining surface is provided on the cam (130). Stop surface (14, 14 ', 14'',18', 18 ''), characterized in that a flat surface directed transversely to the longitudinal direction of the knitting needles, according to claim 1-4 1 The knitting machine described in one. The knitting machine according to one of claims 1 to 5 , characterized in that at least one stopper surface is provided in the range of the drive bat (13, 13 ', 13 ", 13'"). The knitting machine according to one of claims 1 to 6 , characterized in that the drive bat (13, 13 ') can be lifted in the opposite direction to the spring force acting on it. The knitting needle (1 ″) is swingably provided in the needle groove (10), and the drive butt (13 ″) can be lifted by the swinging movement of the knitting needle (1 ″). The knitting machine according to one of claims 1 to 6 . 2. The knitting needle (1, 1 ′, 1 ″, 1 ′ ″) has only one drive bat (13, 13 ′, 13 ″, 13 ′ ″). knitting machine according to one of 1-8.

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