KR20200007693A - Flat knitting machine - Google Patents

Abstract

The present invention provides a flat knitting machine which, when an operation for inhibiting knock over of a stitch in a finger connection unit by a stitch inhibition plate is stopped, makes resistance that a needle loop received when the stitch inhibition plate moves smaller than existing methods to ensure knock over. A stitch inhibition groove (5a) of the stitch inhibition plate (5) is operated in a needle (4) supporting a stitch which becomes a finger connection unit (6a) in a finger unit (7) to be knitted for a finger unit (6) knitted previously in order to overlap between finger units (6, 7) knitted to be adjacent to each other. After finishing knitting of the next finger unit (7), the present invention moves the needle (4) supporting the stitch of the finger connection unit (6a) to a releasing location by means of a return cam surface (16a) of a pressure cam (16), and moves the stitch inhibition plate (5). The releasing location is a side of a needle bed gap (2), rather than a location where the needle (4) is inserted into a needle bed (3) in forming the stitch, and the needle loop of the stitch in the finger connection unit (6a) reduces increase of resistance received when returning from the stitch inhibition groove (5a) to the needle bed gap (2), thereby definitely enabling knock over.

Description

Flat Knitting Machine {FLAT KNITTING MACHINE}

The present invention comprises a stitch restraining plate for knitting gloves or socks having a finger portion (toe portion) into a cylindrical knitted fabric and overlapping the finger portions. It relates to a flat knitting machine.

A flat knitting machine, such as a glove knitting machine, which sequentially knits a finger part while making a conventional overlap, has a pair of front and rear needle beds, and a tip end of the needle bed gap side between the needle beds ( A band-shaped stitch restraining plate is provided in (former patent document 1, 2). In patent document 1, a stitch presser plate corresponds to a stitch restraint plate. The needle bed has needle plates that are installed side by side at a constant pitch along the longitudinal direction. Knitting needles are accommodated in the needle grooves between the needle plates and are arranged in the longitudinal direction of the needle bed, and the hooks at the ends are advanced to the needle bed gap to knit the knit fabric. Retraction of the knitting needle is driven by a cam mounted on a carriage reciprocating along the longitudinal direction of the needle bed.

The stitch restraining plate includes a stitch restraining groove at a position away from the tip end of the needle bed gap side to the needle bed side. The stitch restraint groove acts on the stitches of the finger joints supported by the knitting needles in the section to be overlapped on one side in the longitudinal direction. In order to operate the stitch restraint groove, the stitch restraint plate is moved from one side in the longitudinal direction to the other side. The stitches of the finger joints are guided to move relative to the stitch restraint plate and invade into the stitch restraint grooves. The knitting needle supporting the stitches of the finger joints of the finger portions knitted previously stops the stitches on the needle bar just above the stitch restraint groove to suppress knock over. The portion on the needle bed gap side of the stitch restraint groove of the knitting needle is used to knit the next finger portion to the finger joint portion. When the knitting of the next finger portion is finished, the stitch restraint plate is moved to one side in the longitudinal direction, and the stitch restraint groove is separated from the stitch of the finger joint portion to one side. The stitch of the finger joint of the finger portion knitted previously is returned to the needle bed gap side past the inclined portion of the stitch restraint plate, and knitted on the needle bed gap side, and then superimposed on the stitch of the finger joint of the finger portion. When knitting the knitted fabric of the trunk portion following the two finger portions, the stitches of the two finger joints are knocked over as a double stitch to form an overlapped finger joint.

The carriage is equipped with various cams including a movable cam, and the movable cam is operated from the outside of the carriage through a control bar extending in the longitudinal direction of the needle bed (see Patent Document 3, for example). The movable cam shown in FIG. 1 of patent document 3 contains the stitch cam of 14 and the pressure cam of 16. As shown in FIG. Fig. 3 of Patent Literature 3 shows a stitch restraining plate with a thinner hatching than the front needle bed on the lower side of the latch needle indicated by the symbol S as the knitting needle, which is the tip side of the front needle bed indicated by reference numeral 10F. 3 also shows the needle plate behind the latch needle.

When the stitch cam is formed, the stitch cam can move to change the degree to which the knitting needle is lowered to the needle bed side according to the stitch value corresponding to the size of the stitch. The pressure cam moves to act on the knitting needle supporting the stitch of the finger joint portion by the hook, and the knitting needle is lowered to the needle bed side, so that the stitches easily enter the stitch restraint groove. When the stitch restraining plate moves in the longitudinal direction to infiltrate the stitches into the stitch restraint grooves, the upper surface of the stitch restraint plate and the bottom face of the needle plate or the bottom face of the needle needle slide.

Japanese Patent Publication No. 3053576 Japanese Patent Laid-Open No. 2011-26741 Japanese Patent Laid-Open No. 2013-44077

Background Art In recent years, flat knitting machines having a stitch restraint plate are required to be able to knit thin gloves, such as knitting gloves or gloves for precision work, using a thin knitting yarn. However, when the knitting yarn becomes thinner, a problem tends to occur when the stitch restraining plate is removed from the finger joint and the stitches stopped in the stitch restraint groove are returned to the needle bed gap side along the inclined portion. The thin knitting yarn is easily caught in the gap for sliding between the upper surface of the stitch restraint plate and the bottom surface of the needle plate or the bottom surface of the knitting needle. When the knitting yarn is caught in the gap, the state where the stitches of the finger joints of the previously knitted finger portion are not released is continued. The stitch is pulled by the progression of the knitting fabric of the trunk portion, and then released and knocked over. The knitted product with such a delay of knockover becomes a defect.

The configuration disclosed in Patent Literature 1 uses a cross section of a portion corresponding to the inclined portion of the stitch restraint groove as an inclined surface, and is rolled up by a gap between the upper surface of the stitch restraint plate and the bottom face such as a needle plate, even if thin. It is making it hard to go. The structure disclosed in patent document 2 restrict | limits to a receiving member so that a stitch suppression plate may not move away from the bottom face, such as a needle plate, and makes it hard to produce a clearance gap between the upper surface of a stitch restraint plate, and the bottom face, such as a needle plate.

However, the needle plate is a plurality of plate-like members which are arranged side by side on the substrate of the needle bed to form the needle bed. The knitting needles are a plurality of needle-like members accommodated in the needle grooves between the needle plates and advancing with respect to the needle bed gap. Since these members need to slide with each other, they cannot be brought into close contact, and a gap in which the thin knitting yarns are rolled up occurs. When returning the stitches of the finger joints of the previously knitted finger portions stationary in the stitch restraint grooves to the needle bed gap side along the inclined portion, the needle loops of the stitches are moved from the needle needles to the tip side of the hook. The moving needle loop passes over the latch with the hook closed. The length of the circumference of the part passing on the latch increases with the inclination of the latch. The needle loop is resisted by increasing the circumferential length with respect to movement, and when the resistance is large, smooth movement becomes difficult. The countermeasure against the shape of the stitch restraint groove like patent document 1 and the countermeasure by the accommodating member of the stitch restraint plate like patent document 2 do not reduce the resistance which the needle loop receives. Therefore, only these measures are considered to be difficult to prevent the rolling into the gap when the thin knitting yarn is subjected to resistance when it moves.

An object of the present invention is to reduce the resistance received by the needle loop with movement of the stitch restraining plate when stopping the action of suppressing the knockover of the stitches of the finger joints by the stitch restraint plate, thereby ensuring knockover. It is possible to provide a flat knitting machine.

The present invention is formed on a single needle arranged in the longitudinal direction of a pair of front and rear needle beds, and the drive butt oozing in accordance with the result of the prior needle is reciprocated in the longitudinal direction. A knitting cam mounted on a carriage, which is driven to advance and retreat to a needle bed gap between needle beds, in order to knit a tubular knitted fabric having a plurality of finger portions, A stitch restraining plate for overlapping between the finger portions knitted adjacently on one side in the direction;

While the stitch of the finger joint of the finger portion knitted previously with the stitch restraint groove formed in the stitch restraint plate is stopped and supported by the needle needle of the knitting needle, the next finger portion is knitted to the final course including the finger joint. In the flat knitting machine which suppresses the knock over of the stitch to be made,

It is mounted on the carriage and acts on the butt of the needle which supports the stitch of the finger joint part which suppresses knockover by the stitch restraint on a needle, and knits to the release position of the needle bed gap side in the state in which the stitch restraint plate suppresses stitch. With a return cam having a cam surface for returning

It is a flat knitting machine characterized by the above-mentioned.

Further, in the present invention, the butt is a needle bed gap side butt which is formed on the needle bed gap side more than the drive butt and always protrudes,

And a switching mechanism for switching whether or not the cam surface is acted on a needle bed gap side butt.

It is characterized by.

In addition, in the present invention, the needle, the needle to support the stitches of the finger connecting portion of the finger portion of the previously knitted with the hook, to act to guide the stitch to the stitch suppression groove by acting the stitch suppression plate, the needle It is a pressure cam which drives the drive cam surface formed in the bed side to the said drive butt, and pulls the said knitting needle to the needle bed side,

The cam surface which acts on the needle bed gap side butt and returns the knitting needle for supporting the stitch of the previously knitted finger joint portion to the release position is formed on the needle bed gap side of the pressure cam.

It is characterized by.

In addition, in the present invention, the return cam is a stitch cam acting on the drive butt to the drive cam surface to draw the needle into the needle bed side according to the size of the stitch to be formed,

A cam surface which acts on the needle bed gap side butt and returns the knitting needle for supporting the stitch of the previously knitted finger joint portion to the release position is formed on the needle bed gap side of the stitch cam.

It is characterized by.

In addition, in the present invention, the feedback cam is a stitch cam acting on the drive butt to the drive cam surface, so as to draw the needle into the needle bed side according to the size of the stitch to form,

The cam surface which acts on the driving butt and returns the knitting needle for supporting the stitches of the previously joined finger joint portion to the release position is formed on the needle bed side rather than the driving cam surface of the stitch cam.

It is characterized by.

In addition, in the present invention, the feedback cam is a stitch cam acting on the drive butt to the drive cam surface, so as to draw the needle into the needle bed side according to the size of the stitch to form,

The stitch cam pulls back the knitting needle for supporting the stitch of the previously knitted finger connection portion from the needle bed gap to the release position in the knitting operation of the empty course without the sudden yarn after knitting the next finger portion.

It is characterized by.

In addition, in the present invention, the feedback cam is a stitch cam acting on the drive butt to the drive cam surface, so that the needle is drawn to the needle bed side according to the size of the stitch to be formed,

The stitch cam drives the knitting needle supporting the stitches of the previously knitted finger joints in the knitting operation of the empty course without the sudden yarn after the actuation of the stitch restraint plate before the next finger portion is knitted, and at least The needle bed gap is pulled back to the release position.

It is characterized by.

According to the present invention, the stop of the knockover suppression of the stitch of the finger joint by the stitch restraint plate is performed by moving the knitting needle for supporting the stitch of the finger joint of the previously knitted finger joint to the needle bed gap release position. With this movement, the stitch is loosened against the knitting needle. As the stitch restraint plate moves away from the finger joint in the longitudinal direction, the stitches of the finger joint move toward the needle bed gap side along the inclined portion of the stitch restraint plate, and the knockover is surely possible.

Further, according to the present invention, the cam surface formed on the return cam so as to act on the needle bed gap side butt which always protrudes, after knitting the next finger portion, returns the knitting needle that knitted the finger connecting portion to the release position. Next, the stitches of the finger joints of the knitted finger portion are not knocked over, and the stitches of the finger joints of the knitted fabric can be loosened with respect to the knitting needle. The action of the return cam can switch the action and non-action by the switching mechanism.

Further, according to the present invention, the pressure cam formed to facilitate the action of the stitch restraint plate has a cam surface formed on the needle bed gap side, whereby the stitches of the finger joints are loosened against the knitting needle before the action of the stitch restraint plate is stopped. You can turn the needle back to lose.

Further, according to the present invention, the stitch cam which drives the needle needle to pull in the needle bed side at the time of stitch formation is stitched by the finger joint of the finger joint before stopping the action of the stitch restraint plate by the cam surface formed on the needle bed gap side. You can reverse the needle to loosen the force.

Further, according to the present invention, the stitch cam for driving the needle needle into the needle bed side when the stitch is formed is stitched by the cam surface formed on the needle bed side of the drive cam surface before the action of the stitch restraint plate is stopped. The needle can be returned to loosen the needle.

According to the present invention, after stitching the next finger portion and before removing the stitch restraint plate, the stitches of the finger joints that have been knitted beforehand and stopped at the stitching needle of the stitch restraint groove of the stitch restraint plate are knitted to the knitting needle in the knitting of the empty course. You can loosen it.

Further, according to the present invention, after acting the stitch restraint groove of the stitch restraint plate, the stitch of the finger joint of the finger portion knitted previously stops at the stitch needle of the stitch restraint recess of the stitch restraint plate, Let loose. The stitch restraining plate can be easily removed from the finger joint even after the next finger portion is knitted.

1 is a layout view of a main cam showing the operation of the flat knitting machine 1 according to the first embodiment of the present invention.
FIG. 2 is a layout view of a cam showing another operation of the pressure cam 16 of FIG.
3 is a side sectional view showing the configuration of the needle bed 3 and the knitting needle 4 used in the flat knitting machine 1 of FIG.
FIG. 4 is a side view schematically showing the configuration of the vicinity of the hook 4a of the single needle 4 shown in FIG.
FIG. 5 is a layout view of cams of the carriages 10F and 10B used in the flat knitting machine 1 of FIG.
FIG. 6 is a side view briefly showing a configuration for switching the operation of the pressure cam 16 in the flat knitting machine 1 of FIG.
7 is a layout view of a main cam showing the operation of the flat knitting machine 41 according to the second embodiment of the present invention.
Fig. 8 is a layout view of a main cam showing the operation of the flat knitting machine 51 of the third embodiment of the present invention.
9 is a view showing the operation of the flat knitting machine according to the fourth embodiment of the present invention.
Fig. 10 shows the operation of the flat knitting machine of the fifth embodiment of the present invention.

1 to 6 relate to the operation of the flat knitting machine 1 according to the first embodiment of the present invention and the configuration of main parts. Fig. 7 relates to the operation of the flat knitting machine 41 according to the second embodiment of the present invention. 8 relates to the operation of the flat knitting machine 51 according to the third embodiment of the present invention. 9 and 10 relate to the operation of the flat knitting machine of the fourth and fifth embodiments of the present invention, respectively. In each figure, the corresponding part has shown the same code | symbol, and the overlapping description may be abbreviate | omitted. In addition, for convenience of description, the part which is not described in the description object may be referred to with the reference numeral described in the other drawing. Control necessary for switching and the like in each embodiment is performed in the order set in advance in control means such as a controller provided in the flat knitting machine 1.

Example 1

Fig. 1 shows a schematic configuration and operation of the main part of the flat knitting machine 1 according to the first embodiment of the present invention. The flat knitting machine 1 has a front needle bed 3F to be described later as a pair of front and rear needle beds with a needle bed gap 2 interposed therebetween, and a rear needle bed not shown in the drawings. Equipped. In the following description, F is attached to the number relating to the front needle bed 3F, B is attached to the number relating to the configuration of the rear needle bed, and only numbers are used to refer to the items common to the front and rear needle beds. . The needle bed 3 includes a plurality of knitting needles 4 which are arranged side by side at a constant pitch along the longitudinal direction that is horizontal in the drawing. The knitting needle 4 includes a hook 4a at the tip of the needle bed gap 2 side, and drives a butt 4b to the needle bed 3 side away from the needle bed gap 2, and a drive butt. The needle bed gap side butt 4c is provided on the needle bed gap 2 side rather than (4b). The stitch suppressing plate 5 is disposed on the bottom face side near the tip of the knitting needle 4. The operation of driving the knitting needle 4 before moving the stitch restraint plate 5 to the left direction is performed by the tip portion near the hook 4a of the knitting needle 4, the driving butt 4b and the needle bed gap side butt 4c. It is represented by the trajectory of.

The stitch restraint plate 5 is provided with the stitch restraint groove 5a at the position away from the tip of the needle bed gap 2 side to the needle bed 3 side. The stitch restraint groove 5a is closed on one side in the longitudinal direction of the needle bed 3 and extends toward the needle bed gap 2 side while extending in the right direction on the other side. It opens. The upper edge of the needle restraint groove 5a on the left side of the needle restraint groove 5a is the stitch restraint piece 5b, and on the right side the lower side of the needle restraint groove 5a on the needle bed 3 side. The edge becomes the inclined portion 5c that approaches the needle bed gap 2 side and reaches the tip of the needle bed gap 2 side. The stitch restraining plate 5 is movable in the longitudinal direction, and is used to overlap between the finger parts 6 and 7 knitted adjacently. The stitch restraint groove 5a penetrates the stitch which becomes the finger connection part 6a by the side of the finger part 7 to be knitted next in the finger part 6 knitted previously in the state supported by the hook 4a. Use it to Next, when the knitting needle 4 is driven toward the needle bed gap 2 in the knitting of the finger portion 7, the stitch of the finger connecting portion 6a moves from the hook 4a to the needle, and the stitch restraint groove ( It is stopped and supported in the range located immediately above 5a). In the first embodiment, the four knitting needles 4 support the stitches of the finger connecting portions 6a by needles, while the next finger portions 7 are located at the needle bed gap 2 side than the stitch restraint pieces 5b. To the final course including the finger joint 7a. The stitch restraint groove 5a acts to suppress knock over of the stitches of the finger connecting portion 6a supported during the knitting of the next finger portion 7. The number of the knitting needles 4 used for supporting and knitting the finger joints 6a and 7a is the number of gauges, which are the density of the stitches to be knitted, and the total number of knitting needles 4 used for knitting the finger parts 6 and 7 (7). Can be changed as appropriate.

When the knitting of the next finger part 7 is complete | finished, the stitch restraint board 5 is moved to the left direction until the stitch restraint piece 5b is removed from the finger part 7. The stitch restraint plate 5 is moved in a state in which the knitting needle 4 supporting the stitches of the finger joints 6a and 7a is returned to the release position. The release position is, for example, represented by the tip position of the hook 4a of the knitting needle 4, and is set to the stitch reference position 2a or a position close thereto. The stitch reference position 2a becomes the position of the knitting needle 4 which is pulled in corresponding to the stitch value 0 set in the stitch cam 14 according to the size of the stitch to be formed. When the knitting needle 4 which supports the stitch of the finger connection part 6a with the hook 4a is advanced to the needle bed gap 2, the stitch is settled over the latch from the hook 4a to the needle side. The stitch restraining plate 5 suppresses the stitch from knocking over even when the knitting needle 4 is drawn in. When the knitting needle 4 is pulled to the needle bed 3 side, a stitch of the finger connecting portion 7a is formed on the hook 4a, and the stitch of the finger connecting portion 6a of the previous finger portion 6 is supported between the needles. In this way, the knitting needle 4 supporting the stitches of the finger joints 6a and 7a is returned to the release position by the cam. The stitch restraining plate 5 is moved away from the finger joints 6a and 7a to the left after the knitting needles 4 supporting the stitches of the finger joints 6a and 7a are at least returned to the release position. By moving the stitch restraining plate 5 to the left direction, the stitches of the finger joints 6a supported by the needles of the single needles 4 are released, and the stitch restraints 5c are moved along the inclined portions 5c to the needle bed gap 2 side. do. As illustrated in FIG. 4, in the stitches of the finger joints 6a of the previous finger portion 6, the resistance received when the needle needle 4 is moved to the needle bed gap 2 side decreases. The decrease in resistance makes it easy for the stitch to return to the needle bed gap 2 side without being rolled up when the stitch moves along the inclined portion of the stitch restraint plate 5. Since the knitting needle 4 is returned to the release position, the stitch of the finger connecting portion 6a does not knock over but stops between needles, but it is possible to reliably knock over in the next knitting operation. The release position may be a retracted position within a range in which the stitches stop over the needles without knocking over the latches even when the knitting needles 4 are pulled to the needle bed 3 side.

The carriage 10F reciprocating in the longitudinal direction of the needle bed mounts a cam including a stitch cam 14, a pressure cam 16 and a needle guide cam 17. The stitch cam 14 moves along the inclined guide groove 14a and moves below the inclined cam surface and the drive cam surface 14b as the drive cam surface 14b for driving the drive butt 4b of the single needle 4. The auxiliary cam surface 14c formed at intervals is provided. The stitch cam 14 lowers the driving butt 4b, which is in the needle position, in accordance with the result of the needle selection to the lower end along the inclination of the cam surface 14b. Guide them through. The pressure cam 16 moves along the guide groove 16a in the vertical direction. When the pressure cam 16 of the first embodiment moves upward along the guide groove 16a, the tip of the hook 4a is in contact with the needle bed gap side butt 4c of the knitting needle 4, and the stitch reference position 2a The return cam surface 16c which drives the knitting needle 4 back to the needle bed gap 2 side until it reaches () is provided in the upper part. The feedback cam surface 16c always pushes the needle bed gap side butt 4c into contact with the needle bed gap 2 in the right direction of the needle guide cam 17 which pushes down the needle bed gap side butt 4c. Return the knitting needle (4). In the case of using the movable sinker 8 described later in FIG. 4, it is preferable to press-fit the stitches under the needle bed gap 2 with the movable sinker 8 when the knitting needle 4 is returned. Do.

FIG. 2 shows another operation of the pressure cam 16 of FIG. 1 as a locus associated with the knitting needle 4. The pressure cam 16 is moved downward along the guide groove 16a and provided with a drive cam surface 16b at the lower portion which is in contact with the drive butt 4b to drive the knitting needle 4 into the needle bed 3 side. do. Moreover, since the knitting of the finger part 6 is complete | finished, the drive butt 4b of the knitting needle 4 arrange | positioned at the right side of the knitting needle 4 drawn in to the needle bed 3 side is a non-precipitation state, and the driving cam surface ( Do not touch 16b). In this operation, the stitch restraint groove 5a of the stitch restraint plate 5 indicated by the double-dot chain line in the drawing is far from the left side of the figure. The pressure cam 16 supports the stitches of the finger joints 6a with the hooks 4a before the stitch suppressing grooves 5a are applied to the stitches that become the finger joints 6a of the finger portions 6 previously knitted. The needle 4 to be pulled in to the needle bed 3 side is used to make the stitches easily invade the stitch restraint groove 5a.

3 shows the configuration of the needle bed 3 and the knitting needle 4 used in the flat knitting machine 1 of FIG. The needle bed 3 has a needle plate 3b arranged at a constant pitch along the longitudinal direction perpendicular to the ground in the drawing with respect to the substrate 3a. The knitting needle 4 is accommodated in the needle groove between the needle plates 3b, and is arranged in the longitudinal direction of the needle bed 3, and the hook 4a at the tip is advanced to the needle bed gap 2 to knit the knitted fabric. do. Retraction of the knitting needle 4 is driven by a cam such as a stitch cam 14 mounted on the carriage 10 reciprocating along the longitudinal direction of the needle bed 3. The needle bed gap side butt 4c is formed at the proximal end of the needle body 4d having the hook 4a at its tip, and always protrudes from the needle bed 3 toward the carriage 10 side. . The tip end of the jack 4e is coupled to the base end of the needle body 4d. The jack 4e is provided with the drive butt 4b at intervals from the distal end to the proximal end, and receives the action of the control jack 4f from the proximal end. The control jack 4f has a needle tip convex portion 4g in contact with the outer circumference of the needle needle drum, which is not shown in the drawing, and the needle of the driving butt 4b drives the needle needle pattern formed on the outer circumferential surface of the needle needle drum. It is reflected in the haunting from the bed 3 to the carriage 10 side. The needle tip method is not limited to the method of using a needle tip drum, and for example, a needle tip mechanism that is switched by electrical control of the carriage 10 may be mounted. The drive butt 4b protrudes toward the carriage 10 side in the needle position according to the needle needle result, and does not protrude in the non-needle state.

FIG. 4 shows the structure of the vicinity of the hook 4a of the knitting needle 4 shown in FIG. 3 with respect to the front needle bed 3F. The knitting needle 4 returns to the release position in the operation of FIG. When the stitch is formed, the position where the knitting needle 4 is drawn to the needle bed 3 side is lower than the drawing. In the needle body 4d of the needle needle 4 provided with the hook 4a at the tip end, the bottom portion advances and retreats to the needle bed gap 2 along the bottom line 3Fc of the needle. The back needle bed 3B side is shown by the bottom line 3Bc of a needle. The vertical line 2v passing through the center of the needle bed gap 2 crosses the intersection point of the bottom lines 3Fc and 3Bc of the needle. The bottom lines 3Fc and 3Bc of the needle are inclined so that the needle bed gap 2 side becomes higher and the needle bed 3F and 3B side becomes lower. The opening of the hook 4a of the knitting needle 4 is covered with the latch 4h and closed when the stitch to be knocked over passes. The stitch of the finger joint part 6a is pushed up by the inclined part 5c shown in FIG. 2 when escaping from the stitch restraint groove 5a of the stitch restraint plate 5, and is represented by a double-dotted line in the state shown by the solid line. Transition to state The part 6b caught by the needle in the needle loop of the stitch of the finger connection part 6a moves the outer edge part of the latch 4h which closes the hook 4a. The portion 6c passing through the stitch restraint groove 5a in the needle loop returns to the tip of the needle bed gap 2 side of the stitch restraint plate 5 along the inclined portion 5c. Since the position of the knitting needle 4 before returning from the return cam surface 16c shown in FIG. 2 is lower than that in the drawing, the needle loop must move a portion having a longer circumference. By returning the knitting needle 4 to the release position, it is possible to reduce the degree to which the resistance received when the needle loop moves increases than before the reverse.

It is preferable to provide a movable sinker 8 on the needle bed gap 2 side of the needle bed 3. The movable sinker 8 is disposed between the knitting needles 4 in the longitudinal direction, and needle stitches in addition to the wall surface 8a for forming the sinker loop at the time of forming the stitch by the hook 4a. The press-fit part 8b for press-fitting under (2) is provided. Such a movable sinker 8 is omitted in this drawing, but is arranged to be slightly on the needle bed 3 side than the stitch reference position 2a. The bottom line 3Bc of the needle on the back needle bed 3B side is the needle bed gap 2 side than the stitch reference position 2a. In order to sequentially knit the finger portions, the knitting yarn is stretched between the previously knitted finger portion and the knitting start portion of the finger portion to be knitted next, so that cutting of cross-over yarn or single yarn is performed. Incorporation is required. The apparatus required for such a process moves the needle bed gap 2 side rather than the positions corresponding to the bottom lines 3Fc and 3Bc and the stitch value 0 of the needle. When the release position is set to a position where the needle bed gap 2 has advanced, it is expected that the effect of reducing the increase in resistance received when the needle loop moves is expected to increase. However, in order to avoid interference with the device moving on the needle bed gap 2 side, it is preferable that the release position does not exceed the position corresponding to the stitch value 0 or the bottom line 3Fc of the needle.

FIG. 5 shows the arrangement of cams mounted on the carriages 10F and 10B used in the flat knitting machine 1 of FIG. The front and rear carriages 10F and 10B reciprocate in conjunction with each other in the lateral direction of the drawing. The cylindrical knitted fabric knitted by the flat knitting machine 1 uses the front carriage 10F for the movement to the left direction of the figure, and the rear carriage 10B for the movement to the right direction, and the front and rear needle beds 3 ) In turn to form a barrel. The front carriage 10F is equipped with a knitting acting cam 11 that enables knitting of stitches even when moving in the right direction of the drawing. The acting cam 11 during knitting is a movable cam that can be mounted and used to start knitting using the knitting needle 4 of the front and rear needle beds 3. The elastic raising cam 12 acts on the needle bed gap side butt 4c having a different protruding height from the needle bed 3, and is used to insert the elastic yarn into the knitted fabric. The center cam 13, the stitch cam 14, and the needle rising cam 15 act on the driving butt 4b in a state of being pinched and protruding from the needle bed 3 to guide the formation of the stitch. The needle guide cam 17 and the bridge cam 18 restrict the advance of the knitting needle 4 to the needle bed gap 2 side. 1 and 2 are performed by moving the front and rear carriages 10F and 10B to the left and operating the pressure cam 16 simultaneously.

6 shows the configuration of a switching mechanism for switching the operation of the pressure cam 16 in the flat knitting machine 1 of FIG. When the carriage 10 moves in the longitudinal direction of the needle bed 3 which becomes a direction perpendicular to the ground in the drawing, as in Patent Document 3, the carriage 10 is controlled from the outside of the carriage 10 with respect to the movable cam. Control of the movable cam is made by a control bar accommodated in a groove formed in the control bar guide 20. As the control bar, a pressure cam control bar 21, a knitting cam control bar 22, an elastic lasing cam control bar 23, and a stitch cam adjustment control bar 24 are provided. The pressure cam control bar 21 is driven to ooze toward the carriage side from the groove formed in the control bar guide 20.

Fig. 6 shows a switched state of the pressure cam 16, which corresponds to Fig. 6 (a) in Fig. 1 and Fig. 6 (b) in Fig. 2, respectively. The carriage 10 moves while being guided by the guide shaft 30. The cam shown in FIG. 5 including the pressure cam 16 is provided in the bottom plate 31 of the carriage 10. The surface side of the bottom plate 31 faces the upper surface of the needle bed 3. A lever 32, a moving member 33, a strut 34, and a spring 35 are provided on the rear surface side of the bottom plate 31. The lever 32 is capable of swinging with the intermediate support shaft 32a as a point, one end of which is in contact with the pressure cam control bar 21, and the other end of which is the movable member 33. ) The moving member 33 is connected to the pressure cam 16 via the guide groove 16a. The spring 35 that spans between the movable member 33 and the support 34 to be installed on the bottom plate 31 is pressed so that one end of the lever 32 is in contact with the pressure cam control bar 21. The pressure cam control bar 21, the lever 32, the moving member 33, the support 34, and the spring 35 move the return cam surface 16c of the pressure cam 16 to the needle bed gap side butt 4c. And a switching mechanism for switching between acting or not acting. The switching mechanism is not limited to this driving method, and for example, the carriage 10 may be equipped with a drive source such as a motor or a solenoid.

In the first embodiment, the state of Fig. 6 (b) is set just before the stitch restraint groove 5a is acted on, and the state of Fig. 6 (a) is otherwise. The switching of the pressure cam 16 is the same as before. However, the feedback cam surface 16c was not formed in the conventional pressure cam. When the pressure cam 16 having the return cam surface 16c is used as in the first embodiment, the operation of FIG. 1 can be always performed regardless of the needle point because the needle bed gap side butt 4c is actuated and returned. have. Therefore, not only the case where the finger parts 6 and 7 are knitted sequentially by acting on the stitch restraint groove 5a, but also the case where other parts, such as the trunk part of a glove, are knitted, the knitting needle 4 is returned. The return of the knitting needle 4 forms an exclusive empty course for driving the knitting needle as a knit route without sudden death only after organizing the final course of the next finger part 7 or after organizing the final course. It may be made to. As long as the cam can be selected from the tuck route, the empty course may be used as the tuck route. The intermediate cam of Figs. 6 (a) and 6 (b) is formed in the movement of the pressure cam 16. In the intermediate step, the driving cam surface 16b and the return cam surface 16c are driven by the driving butt 4b and the needle bed gap. If it does not act on the side butt 4c, the operation | movement similar to the conventional one may be made.

According to the first embodiment, the pressure cam 16 provided in order to facilitate the action of the stitch restraint grooves 5a has the needle bed gap 2 before the needle needle 4 stops the action of the stitch restraint grooves 5a. It can also be used to drive to return to the () side. Moreover, it is also possible to adjust the return amount by the return cam surface 16c, or it is also possible to integrate the needle guide cam 17 with the pressure cam 16, and to be able to move up and down.

Example 2

Fig. 7 shows a schematic configuration and operation of the main part of the flat knitting machine 41 according to the second embodiment of the present invention with respect to the carriage 40F on the front needle bed 3F side. In the second embodiment, the return cam surface 44c is formed on the needle bed gap 2 side of the stitch cam 44 to support the stitches of the finger connecting portion 6a by acting on the needle bed gap side butt 4c. The knitting needle 4 is returned to a release position such as the stitch reference position 2a or the like. Since the return to the needle bed gap 2 side is performed using the needle bed gap side butt 4c, the final course of the next finger portion 7 can be performed irrespective of the result of the needle selection. It is possible to do this after formation or by forming an exclusive empty course. Also, the carriage by the stitch cam can be made in the carriage on the rear needle bed side. The reduction of the stitches before the stitch restraint plate 5 is acted on the finger joint 6a is taken as the pressure cam 46.

According to the second embodiment, the return cam surface 44c has the knitting needle 4 drawn into the needle bed 3 side such that a stitch having a size corresponding to the stitch value is formed by the driving cam surface 44b acting on the driving butt 4b. It is formed in the stitch cam 44. After stitching the next finger portion 7, the stitch cam 44 moves the knitting needle 4 supporting the stitches of the finger joint portion 6a of the finger portion 6 previously knitted to the needle bed gap 2 side. It can be driven back.

Example 3

Fig. 8 shows a schematic configuration and operation of the main part of the flat knitting machine 51 according to the third embodiment of the present invention with respect to the carriage 50F on the front needle bed 3F side. On the rear needle bed side, as in the stitch cam 14 in Fig. 5, since the arrangement of the stitch cams 54 is shifted to the diagonal position, the operation of the stitch cam 54 on the rear carriage side is preceded. Need to be. In the third embodiment, when the driving butt 4b passes through the return cam surface 54c facing the lower end of the inclined drive cam surface 54b of the stitch cam 54, the needle stitches 6a and 7a of the finger connecting portions 6a and 7a pass through. 4) to the release position. After the stitches of the next finger portion 7 are knitted to the final course, only the driving butt 4b of the knitting needle 4 supporting the stitches of the finger connecting portion 6a is set to a needle position as indicated by a solid line, and the other knitting needles ( The drive butt 4b of 4) is made into the non-needle state as shown by a broken line. Since the needle butt 4b of the needle tip state guides the knitting needle 4 to the knit route through which the needle needle 4 advances through the center cam 13 from the needle rising cam 15 to the needle bed gap 2 side, the needle rising The cam 15 may be settled out, and it may be left in the sinking state when returning.

In Example 2 and Example 3, the drive for switching the stitch cams 44 and 54 is made through a switching mechanism including the stitch cam adjustment control bar 24 of FIG. In addition, if the stitch restraining plate 5 is removed in Example 2 and Example 3, it is preferable to stop the carriage 10 in the state in which the knitting needle 4 of the finger connection part 6a returned to the release position. In Examples 1, 2 and 3, returning the knitting needle 4 to the release position also has the effect of reducing the resistance received when loosening the stitch supported by the needle between the needles.

Example 4

Fig. 9 shows the operation of the flat knitting machine of the fourth embodiment of the present invention. Fig. 9A schematically shows the finger parts 6 and 7 and the body part 9 knitted in the fourth embodiment. 9 (b) shows the knitting procedure of the finger portion 7. In the fourth embodiment, after the finger portion 7 is knitted to the final course 7y after the finger portion 6, one or more empty courses in which the knitting needle 4 is moved to the knit route without sudden death. (Called empty course 7z) is inserted. As long as it is arrangement | positioning of the cam which can select a tuck root, you may make a tuck root empty course. The finger part 7 knits from the last course 7x to the last course 7y sequentially about the whole including the finger connection part 7a, and needles the knitting needle 4 at the insertion of the empty course 7z. The position drawn in to the bed gap side is returned to the release position on the needle bed gap 2 side rather than the position drawn in the final course 7y. Retraction of the knitting needle 4 by this empty course 7z is accompanied by the movement of the stitch of the finger joint 6a which is stopped between the needles of the knitting needle 4, and the stitch is loosened with respect to the knitting needle 4 Can be. Next, after removing the stitch restraint plate 5 to the left, the first course 9c of the trunk portion 9 and the other finger portion are knitted.

The fourth embodiment can be realized by the flat knitting machine 51 of the third embodiment. In addition, the stitch cam 54 does not need to form the return cam surface 54c with respect to the knitting needle 4, and when the stitch cam 14 shown in FIG. 1 is used, the driving cam surface 14b has the knitting needle 4 ) Can be used to retract to the release position. It is not necessary to form the feedback cam surface 16c in the pressure cam 16. The first empty course 7z following the final course 7y includes a needle bed gap 2 with a hook 4a of the knitting needle 4 supporting the stitch formed in the final course 7y of the finger portion 7y. It moves forward, and the stitch of the finger part 7 is settled, and it moves to the needle needle from the hook 4a. The knitting needle 4 is led to the release position by the stitch cam 14. Since the drawing is to the unlocked position, the stitches of the finger connecting portion 7a do not knock over. The stitch of the finger joint 7a is knocked over by the knitting operation of the first course 9c of the trunk 9 together with the stitch of the finger joint 6a moving after removing the stitch restraint plate 5 to the left. do. The knitting order as shown in Fig. 9B can be realized by changing the control data. In addition, the width | variety of the empty course 7z should just contain the finger joint parts 6a and 7a.

Example 5

Fig. 10 shows the operation of the flat knitting machine of the fifth embodiment of the present invention. Fig. 10A schematically shows the finger parts 6 and 7 knitted in the fifth embodiment. Fig. 10 (b) shows the knitting procedure of the finger parts 6 and 7. In the fifth embodiment, after stitching the finger portion 6 sequentially from the course 6x to the final course 6y with respect to the entirety of the finger portion 6 including the finger connecting portion 6a, the stitch restraining plate ( 5) advance to the right. The finger portion 7 inserts one or a plurality of empty courses 7z before starting the formation of the first course 7f.

In the fifth embodiment, since the stitches of the finger joints 6a do not knock over by the suppression by the stitch restraint plate 5 and stop at the needles of the knitting needles 4, the knitting needles 4 do not have a stitch value of zero. It can be pulled in to the needle bed side than the corresponding one. Therefore, in the empty course 7z of the fifth embodiment, the knitting needle 4 brought in at least to the release position as in the first to fourth embodiments and advanced to the needle bed gap 2 can be returned. The fifth embodiment can also be realized by changing the control data using the flat knitting machine 51 and the stitch cam 14 shown in FIG. The effect and width of the empty course 7z are the same as in Example 4.

In Examples 2 and 3, before the stitch restraint plate 5 is removed, the carriage 10 is stopped in the state where the knitting needle 4 supporting the stitch of the finger connecting portion 6a is returned to the release position. desirable. In Examples 1 to 5, although the stitch needles 14, 44, 54 and the pressure cam 16, which are conventionally mounted on the carriage 10, are used to return the knitting needles 4, a dedicated cam is provided. You may also do it.

1, 41, 51: flat knitting machine
2: needle bed gap
3: needle bed
3a: substrate
3b: needle plate
3F: Front needle bed
4: single hand
4a: hook
4b: drive butt
4c: Needle bed gap side butt
5: stitch restraining plate
5a: Stitch Suppression Groove
5b: Stitch Suppression Piece
5c: slope
6, 7: finger part
6a, 7a: finger joint
10, 10F, 10B, 40F, 50F: carriage
14, 44, 54: Stitch Cam
14b, 16b, 44b, 54b: drive cam surface
16: pressure cam
16c, 44c, 54c: return cam surface
21: pressure cam control bar
31: Base Plate
32: lever
33: moving member
34: prop
35: spring

Claims (7)

Carriage which is formed in the knitting needles arranged in the longitudinal direction of a pair of front and rear needle beds, and reciprocates in the longitudinal direction a drive butt which is sunk in accordance with the result of the needle needle. Knitting cam mounted on the body, the knitting needle is driven to advance and retreat to the needle bed gap between the needle beds, while knitting a tubular knitted fabric having a plurality of finger portions in the longitudinal direction. A stitch restraining plate for overlapping between adjacent finger portions;
While the stitch of the finger joint of the finger portion knitted previously with the stitch restraint groove formed in the stitch restraint plate is stopped and supported by the needle needle of the knitting needle, the next finger portion is knitted to the final course including the finger joint. In the flat knitting machine which suppresses knock over of the stitch to be made,
It is mounted on the carriage and acts on the butt of the needle which supports the stitch of the finger joint part which suppresses knockover by the stitch restraint on a needle, and knits to the release position of the needle bed gap side in the state in which the stitch suppression plate suppresses stitch With a return cam having a cam surface for returning
Flat knitting machine, characterized in that.
The method of claim 1,
The butt is a needle bed gap side butt which is formed on the needle bed gap side rather than the drive butt and always protrudes,
And a switching mechanism for switching whether or not the cam surface is acted on a needle bed gap side butt.
Flat knitting machine, characterized in that.
The method of claim 2,
The feedback cam is formed on the needle bed side in order to actuate the stitch restraining plate to guide the stitch into the stitch restraint groove with respect to the knitting needle supporting the stitch of the finger joint of the finger portion knitted previously. A pressure cam which drives a drive cam surface to actuate the drive butt to pull the knitting needle into the needle bed side;
The cam surface which acts on the needle bed gap side butt and returns the knitting needle for supporting the stitch of the previously knitted finger joint portion to the release position is formed on the needle bed gap side of the pressure cam.
Flat knitting machine, characterized in that.
The method of claim 2,
The return cam is a stitch cam that acts on the drive butt to the drive cam surface so as to draw the needle into the needle bed side according to the size of the stitch to be formed,
A cam surface which acts on the needle bed gap side butt and returns the knitting needle for supporting the stitch of the previously knitted finger joint portion to the release position is formed on the needle bed gap side of the stitch cam.
Flat knitting machine, characterized in that.
The method of claim 1,
The said return cam is a stitch cam which acts on the said drive butt to a drive cam surface so that a needle may be drawn to the needle bed side according to the size of the stitch to form,
The cam surface which acts on the driving butt and returns the knitting needle for supporting the stitches of the previously joined finger joint portion to the release position is formed on the needle bed side rather than the driving cam surface of the stitch cam.
Flat knitting machine, characterized in that.
The method of claim 1,
The said return cam is a stitch cam which acts on the said drive butt to a drive cam surface so that a needle may be drawn to the needle bed side according to the size of the stitch to form,
The stitch cam pulls back the knitting needle supporting the stitch of the previously knitted finger connection portion from the needle bed gap to the release position in the knitting operation of the empty course without the sudden yarn after knitting the next finger portion.
Flat knitting machine, characterized in that.
The method of claim 1,
The said return cam is a stitch cam which acts on the said drive butt to a drive cam surface so that a needle may be drawn to the needle bed side according to the size of the stitch to form,
The stitch cam drives a knitting needle for supporting the stitches of the previously knitted finger connecting portion in the knitting operation of the empty course without the sudden yarn after the stitch suppressing plate is acted before the next finger portion is knitted, and The needle bed gap is pulled back to the release position.
Flat knitting machine, characterized in that.

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