JP5805985B2 - Needle plate - Google Patents

Description

The present invention is a needle plate for a knitting needle of a knitting machine, the needle plate is formed as a selection needle plate, the knitting needle is provided in the needle groove of the needle bed, and is lowered into the needle bed by the needle plate. The knitting needle drive bat can be moved over the needle bed.

  Such throat plates for knitting needles of knitting machines, in particular flat knitting machines, are already known. For example, DE 687 608 shows a selection needle plate, by which a drive bat of a knitting needle which is submerged into the needle bed can be raised over the needle bed by means of this selection needle plate, whereby a knitting system The drive bat can be captured by the cam curve. The stroke that the drive bat takes with the knitting cam determines what function the knitting needle performs, i.e., whether the knitting needle forms a stitch, inserts a tuck loop, or remains in the inoperative position.

  Known selection throat plates are expensive to construct. Furthermore, when the knitting needle is strongly loaded in the axial direction, it is not possible to prevent an unexpected lowering of the driving bat of the knitting needle.

  The problem underlying the present invention is to provide a throat plate that allows the drive bat of the knitting needle to be allowed to rise and prevents the drive bat from being unexpectedly lowered to the needle bed.

This problem is a needle plate for a knitting needle of a knitting machine, the needle plate is formed as a selection needle plate, a knitting needle is provided in a needle groove of the needle bed, and is lowered into the needle bed by the needle plate. The knitting needle drive bat can be raised over the needle bed, the needle bottom on which the knitting needle slides has a recess, and the drive bat is located in the recess at the initial position of the knitting needle inoperative. A driving bat is provided at the rear end of the knitting needle, the knitting needle has an elastic portion, and the elastic portion presses the driving bat downward, so that the driving bat The drive bat is configured to be lowered into the recess, the needle plate can form an additional needle bottom on which the drive bat can slide, and during the return movement of the knitting needle, By closing the recess with the plate, the drive bat is shaped by the needle plate. Are additional needle bottom upward slidably moved to be, thereby by lowering the driving butt of the knitting needle into the needle bed can be prevented by the needle plate, are solved.

  Therefore, the needle plate according to the present invention forms a needle bottom, and in particular during the return movement of the knitting needle, the knitting needle can slide on the needle bed in the needle groove, and the needle bottom moves down the needle butt when the knitting needle is loaded in the axial direction. To prevent. At the same time, the needle plate reliably raises the drive bat of the knitting needle so that the knitting needle is reliably captured by the cam portion of the knitting system, and the desired stitching, insertion of the tack, stop at the non-operating position, transfer, etc. One of the functions can be performed. The knitting needle can then have only one drive bat.

  Another advantage arises if the drive bat can be raised by the needle plate against the spring force acting on it. In that case, it is not necessary to return the drive bat to a position where it can be lowered to the needle bed by a needle plate or other elements. The return is preferably carried out passively, preferably by a spring force that can be generated by the knitting needle itself.

  Various possibilities are conceivable for the configuration of the needle plate.

One possibility is to provide a needle plate in the needle groove so that it can move linearly . By moving the needle plate toward the knitting needle, the drive butt can be raised by the needle plate portion, and an additional needle bed can be formed. As long as the needle plate remains in its forward movement position, the needle plate forms a needle bottom that prevents undesired lowering of the knitting needle drive butt. Thus, a single movement of the throat plate provides both functions, ie, raising the drive bat and forming the needle bottom. In this case, it is further advantageous if the needle plate can be moved back to its inoperative initial position via the positioning bat. This return movement takes place at the end of the corresponding knitting needle passing through the cam. As a result, the drive bat of the knitting needle can be lowered again into the needle bed.

However, the needle plate is swingably provided in the needle groove, and the drive butt of the knitting needle can be raised by the swinging motion of the needle plate, so that an additional needle bottom can be formed. If the needle plate is already engaged in the driving range of the knitting needle even in its initial position of non-operation, no linear motion is necessary. To form a needle base to prevent unexpected descent of the case and the drive butt raising the driving butt, it is sufficient to swing the needle plate.

  In this configuration, the needle plate can be moved back to the inoperative initial position by the drive bat or the cam acting thereon. In this case, the needle plate may be driven actively in order to raise the drive bat.

  However, it is also possible to form the needle plate so as to be able to swing in one direction against the spring force. Even in this case, since the needle plate is used, active driving in only one swinging direction is required. In this configuration, the return of the needle plate to the initial position of inactivity can be effected passively by means of a spring force.

The needle plate may not be provided on the needle bed. It is also possible to support the needle plate to another needle Itadoko, a needle plate with the needle plate bed may be movable or pivotably supported.

  A preferred embodiment of a throat plate according to the present invention will be described below with reference to the drawings.

  Sectional drawing of the needle groove of the needle bed with a 1st needle plate and a 1st knitting needle is shown.   Sectional drawing of the needle groove of the needle bed which has the 1st throat plate and 1st knitting needle in another position is shown.   Sectional drawing of the needle groove of the needle bed which has the 1st needle plate and 1st knitting needle in another position is shown.   Furthermore, sectional drawing of the needle groove of the needle bed which has the 1st needle plate and 1st knitting needle in another position is shown.   Sectional drawing corresponding to FIG. 1 of the needle groove of the needle bed with the needle plate of FIG. 1 and a 2nd knitting needle is shown.   FIG. 3 shows a cross-sectional view corresponding to FIG. 1 of the needle groove of the needle bed with the needle plate of FIG. 1 and the second knitting needle in another position.   FIG. 3 shows a cross-sectional view corresponding to FIG. 1 of a needle groove of a needle bed having a needle plate and a second knitting needle in FIG. 1 in another position.   FIG. 5 is a cross-sectional view corresponding to FIG. 1 of a needle groove of a needle bed having a needle plate and a second knitting needle in FIG. 1 in another position.   Sectional drawing of the needle groove of the needle bed with a 2nd needle plate and a 3rd knitting needle is shown.   Sectional drawing of the needle groove of a needle bed with the 2nd needle plate and 3rd knitting needle in another position is shown.   Sectional drawing of the needle groove of the needle bed which has the 2nd needle plate and 3rd knitting needle in another position is shown.   Furthermore, sectional drawing of the needle groove of the needle bed which has the 2nd needle plate and 3rd knitting needle in another position is shown.   FIG. 4 shows a cross-sectional view corresponding to FIG. 3 with the needle plate of FIG. 3 and a fourth knitting needle.   FIG. 4 shows a cross-sectional view corresponding to FIG. 3 with a third needle plate and the knitting needle of FIG. 3.   FIG. 4 shows a cross-sectional view corresponding to FIG. 3 with the third throat plate and the knitting needle of FIG. 3 in another position.   FIG. 6 shows a cross-sectional view corresponding to FIG. 3 with the needle plate of FIG. 5 and a fifth knitting needle.   FIG. 6 shows a cross-sectional view corresponding to FIG. 3 with the throat plate and the fifth knitting needle of FIG. 5 in another position.   Fig. 6 shows a cross-sectional view corresponding to Fig. 3 with the throat plate and the fifth knitting needle of Fig. 5 in another position.

FIGS. 1 a to 1 d are sectional views of the needle bed 100 in the range of the needle groove 110, and the knitting needle 10 and the needle plate 11 are provided in the needle groove 110. The knitting needle 10 is prevented from coming off from the needle groove 110 by the covering strip 120 together with the adjacent knitting needle, and the needle plate 11 by the covering strip 130 together with the adjacent needle plate.

  In FIG. 1a, the knitting needle 10 and the needle plate 11 are in an initial position where they do not operate. The needle plate 11 is moved backward to the initial position by the positioning bat 12 until the positioning bat 12 hits the covering strip 130. The needle key 13 of the knitting needle 10 is at the mouth position. In the rear region of the knitting needle 10, the needle stem 15 has an elastic portion 14, and a knitting needle drive bat 16 is provided at the rear end of the needle stem. Since the elastic portion 14 presses the driving bat 16 downward, the driving bat 16 rests on the slope 17 or the surface 17 ′ in the recess 19 in the needle bottom of the needle bed 100.

  When a force is applied to the positioning bat 12 of the needle plate 11 in the direction of the arrow 18, the needle plate 11 moves the drive bat 16 of the knitting needle 10 forward as shown in FIG. 1b. In this case, the upper surface of the driving bat 16 is raised from the needle bed 100 by sliding upward on the slope 17. The drive bat 16 is now moved over the needle bed 100 and is captured by a cam portion (not shown). This cam part brings the knitting needle 10 to the position shown in FIG. 1c. During this needle movement, the needle plate 11 stays in its forward drive position, at which position the needle 11 is formed by its portion 11a, which closes the recess 19 in the needle bottom, and the front area of the needle bed 100. It moves to the needle bottom 115 in the. As a result, as shown in FIG. 1d, when the needle 10 returns, the knitting needle drive bat 16 can slide beyond the needle bottom formed by the portion 11a and does not sink to the needle bed again. . Only when the positioning bat 12 of the needle plate 11 is returned to the initial position shown in FIG. 1 a, the drive bat 16 is lowered again into the needle bed by the elastic portion 14 of the knitting needle 10. Due to the configuration of the needle plate 11, the drive bat 16 does not descend unexpectedly due to, for example, the axial load of the knitting needle 10.

  2a to 2d again show a cross-sectional view of the needle bed 100 in the range of the needle groove, in which the needle plate 11 and the second type of knitting needle 20 of FIG. 1 are inserted into the needle groove. The knitting needle 20 is composed of two parts. The knitting needle drive butt 26 is provided on a rocking element 25 that is articulated to the needle stem 21. The needle stem 21 has an elastic portion 24 at its rear end, and the free end of this elastic portion is fitted in the drive bat 26. Due to the elastic portion 24, the drive butt 26 of the knitting needle 20 is lowered into the needle bed 100 at an initial position where the knitting needle 20 does not operate. In this position, the drive butt 26 is on the slope 17 or surface 17 ′ of the needle bed 100. As a result, as shown in FIG. 2 b, the drive butt 26 is raised again from the needle bed by the forward movement of the needle plate 11 in the arrow direction 18. After the drive butt 26 is raised, the portion 11a of the needle plate 11 closes the recess 19 in the needle groove to form the needle bottom, and the knitting needle 20 is extruded as shown in FIG. 2c to form a stitch, and then shown in FIG. 2d. Thus, the knitting needle 20 can slide beyond the needle bottom. Thereby, the portion 11a prevents the drive bat 26 from being lowered unexpectedly. Only when the positioning bat 12 of the needle plate 11 is returned to the initial position shown in FIG. 2 a again, the drive bat 26 is also returned to the initial position by the preload of the elastic portion 24.

  3a to 3d show cross-sectional views of the needle bed 100 'in the range of the needle groove, in which a second embodiment of the needle plate 30 and a knitting needle 40 comprising one part are provided in the needle groove. The knitting needle 40 again has an elastic portion 44, and a drive butt 46 is provided at the rear end of this elastic portion. The needle plate 30 is supported in the needle groove so as to be swingable around the shaft 31. The needle plate 30 further has an up-and-down swing arm 32 that acts under the drive butt 46 of the knitting needle 40. Furthermore, the needle plate 30 has an operation swing arm 33, and the needle plate 30 can swing by the operation swing arm. At the initial position where the needle plate 30 does not operate, the up-and-down swing arm is placed on the bottom of the recess 19 ′ of the needle bed 100 ′ or the operation swing arm 33 is supported by the covering strip 130. Similarly, the drive butt 46 of the knitting needle 40, which does not operate, is pushed downward by the elastic portion 44, and is therefore sinking to the needle bed.

By pushing the operation swing arm 33 in the direction of the arrow 34, the needle plate 30 swings as shown in FIG. 3b, and the drive swing 46 of the knitting needle 40 is lifted from the needle bed by the lift swing arm 32. The drive bat is captured by the cam portion of the knitting system. Subsequently, for example for stitch formation, the knitting needle 40 is extruded as shown in FIG. 3c. During this forward movement, so it remains a force in the direction of arrow 34 in the operation the pivotal arm 33 is applied, the lift pivot arm 3 2 closes the 'recesses 19' of the needle beds 100, a needle bottom 115 ' Form. However, during the forward movement of the knitting needle 40, it is not necessary to form the needle bottom with the up-and-down swing arm 22. This is because the drive butt 46 of the knitting needle 40 is supported by the needle bottom 115 'in the front area of the needle bed 100' and therefore does not sink to the needle bed unintentionally. Accordingly, during the forward movement, the action of the force on the operation swing arm 33 can be terminated, so that the lift swing arm 33 can swing downward again as shown in FIG. 3d.

  However, during the return movement of the knitting needle, the up-and-down swinging arm 32 is raised again as shown in FIG. 4, but FIG. 4 shows the return movement of the knitting needle by the knitting needle 50 composed of two parts, It is provided on the oscillating element 55. The oscillating element 55 is provided in an articulated manner with the needle stem 51 and is pushed downward by the elastic portion 54 of the needle stem 51 in a state where the load of the elastic portion 50 cannot be applied, as with the knitting needle 20. Therefore, when the knitting needle 50 is returned, when the drive bat 56 remains in the raised state, the raising / lowering swing arm 32 of the needle plate 30 must be lifted by the action of the force on the operation swing arm 33.

  FIGS. 5 a and 5 b show another configuration of the needle plate 60, which is provided in the needle groove of the needle bed 100 ′ so as to be swingable around the shaft 61 again. Here, the needle plate 60 cooperates with the knitting needle 40 of FIG. Unlike the needle plate 30, the needle plate 60 has a spring element 64 in addition to the up-and-down swing arm 62 and the operation swing arm 63, and the spring element 64 swings the up-and-down swing arm 62 downward as shown in FIG. 5a. Force to position. As a result, the drive butt 46 of the knitting needle 40 is also lowered into the needle bed. When the drive butt 46 is raised, a force is applied to the operation swing arm 63 in the direction of arrow 66 as shown in FIG.

  FIGS. 6a to 6c show the cooperative action of the needle plate 60 and the two-part knitting needle 70. Unlike the knitting needles 10, 20, 40, 50, the knitting needle 70 has a drive bat 76 that is not elastically supported. The drive butt 76 is provided on the swinging element 75 and is positively maintained in the needle bed by the force 77. The needle plate 60 is in an initial position generated by the spring element 64 so that the up-and-down swing arm 62 swings downward. In order to raise the drive bat 76, the action of the force in the direction of the arrow 77 is terminated, and instead, the operating swing arm 63 of the needle plate 60 receives the force in the direction of the arrow 66. Thereby, as shown in FIG. 6b, the raising / lowering swinging arm 62 and hence the drive butt 76 are raised. Further, at this position, the raising / lowering swinging arm 62 closes the recess 19 'to form a needle bottom that prevents the drive butt 76 from being unexpectedly lowered into the needle bed.

  During the forward movement of the knitting needle 70 shown in FIG. 6c, the position of the needle plate 60 is not a problem. Therefore, the needle plate 60 can return to the initial position and swing again by the action of the spring 64. In the front area of the needle bed, the drive butt 76 is supported by a needle bottom 115 'formed by the needle bed.

Claims (10)

A needle plate for knitting needles (10, 20, 40, 50 ) of the knitting machine, the needle plate being formed as a selection needle plate, and the knitting needles (10, 20, 40, 50 ) being needle beds (100, 100 ). ') The drive bat of the knitting needle (10, 20, 40, 50) provided in the needle groove (110) and lowered into the needle bed (100, 100') by the needle plate (11, 30, 60 ) (16, 26, 46, 56 ) can be moved over the needle bed (100, 100 '), on which the knitting needle (10, 20, 40, 50 ) slides and moves on the needle bottom (115, 115 ′) has a recess (19, 19 ′), and the drive bat (16, 26, 46, 56 ) is located in the recess (19, 19 ′) at the initial position of the knitting needle inoperative to form a stitch. Sometimes located on the needle bottom (115, 115 '), the rear end of the knitting needle (10, 20, 40 , 50) Are provided with drive bats (16, 26, 46, 56), knitting needles (10, 20, 40, 50) have elastic portions (14, 24, 44, 54), and elastic portions (14, 24, 44). , 54) presses the driving bat (16, 26, 46, 56) downward, so that the driving bat (16, 26, 46, 56) is recessed in the needle bed (100, 100 ′) (19, 19). ') The drive bat is configured so that it can be lowered into, and the needle plate (11, 30, 60) can form an additional needle bottom on which the drive bat can slide. During the return movement of the knitting needle, the drive bat (16, 26, 46, 56 ) is closed by the needle plate (11, 30, 60) by closing the recess (19, 19 ') by the needle plate (11, 30, 60 ). ) Can be slid on the additional needle bottom formed by It is blocked by more needle bed descending needle plate of the drive butt (16,26,46,56) of the (100, 100 ') within the needle (10,20,40,50) (11,30,60) A throat plate characterized by being.   2. A needle plate according to claim 1, characterized in that the drive bat (16, 26, 46, 56) can be raised against the spring force acting on it.   The needle plate according to claim 1 or 2, characterized in that the needle plate is linearly movable in the needle groove (110).   By moving the needle plate (11) toward the knitting needle (10, 20), the drive bat (16, 26) can be raised by the needle plate portion (11a), and an additional needle bottom (115) can be formed. The throat plate according to claim 3, wherein:   The throat plate according to claim 3 or 4, characterized in that the throat plate is movable back to its inoperative initial position via the positioning bat (12). The needle plate (30, 60) is swingably provided in the needle groove (110), and the drive bat (46, 56 ) of the knitting needle can be raised by the swinging motion of the needle plate (30, 60). 3. Needle plate according to claim 2, characterized in that a typical needle bottom (115 ') can be formed. Wherein the more the needle plate to the drive butt of the knitting needle is movable back to its inoperative initial position, the needle plate according to claim 6.   The needle plate according to claim 6 or 7, wherein the needle plate is swingable in a direction opposite to the spring force.   9. The throat plate according to claim 8, wherein the throat plate can return to its inoperative initial position and swing by a spring force.   The throat plate according to claim 1 or 2, wherein the throat plate is supported in another throat plate floor.

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