JP7048389B2 - Flat knitting machine yarn feeder - Google Patents

Description

The present invention relates to a self-propelled yarn feeder provided in a flat knitting machine capable of supplying yarn for knitted fabric knitting to knitting needles arranged side by side on a needle bed.

Conventionally, in a flat knitting machine, a large number of knitting needles are arranged side by side along the tooth opening, and the knitting needles are driven so as to advance and retreat to the tooth opening in order to knit the knitted fabric. A general flat knitting machine includes a plurality of traveling paths erected above the tooth openings and a plurality of yarn feeders traveling on the traveling paths. At the lower end of the yarn feeder, a yarn feeding port for supplying the knitting yarn to the knitting needle is provided (see, for example, FIG. 1 of Patent Document 1).

The plurality of yarn feeders may be provided with a configuration in which the yarn feeder can be moved up and down (see, for example, Patent Documents 1 and 2). The yarn supply position for supplying the knitting yarn to the knitting needle is a position where the yarn feeding port is lowered, and the yarn is brought close to each other to supply the knitting yarn to the knitting needle under the same conditions. In the standby position where the yarn feeding port that does not supply the knitting yarn to the knitting needle is raised, collision or interference between the yarn feeding ports is prevented.

The yarn feeder may be carried by a carriage running along the needle bed or by itself so as to run independently of the carriage. When the yarn feeder is carried and moved by the carriage, the yarn feeder is moved up and down by the carrying pin engaged for the carrying (see, for example, FIG. 2 to FIG. 10 of Patent Document 1). When the yarn feeder is self-propelled, the sliding resistance against the running of the yarn feeder is used for the vertical movement of the yarn feeder (see, for example, FIG. 11 and FIG. 12 of Patent Document 1, paragraph 0058 of Patent Document 2). ).

European Patent Publication No. 0898002A2 Japanese Patent No. 5042844

In a self-propelled yarn feeder, the sliding resistance used to move the yarn feeder up and down increases the load on the driving drive. If a plurality of yarn feeders are self-propelled, a large driving force is required for traveling, which leads to an increase in the size of the driving unit. Further, if the sliding resistance is large, the friction between the yarn feeder and the track on which the yarn feeder travels is large, and there is a concern about wear of the track. However, if the sliding resistance is reduced, it may not be possible to reliably switch the vertical movement of the yarn feeder.

An object of the present invention is to provide a yarn feeder of a flat knitting machine capable of reducing sliding resistance and allowing self-propelling.

The present invention is a flat knitting machine in which a cam for driving the knitting needle to move forward and backward to the tooth opening is provided on the carriage, and instead of being taken to the carriage, a traveling path erected above the tooth opening independently of the carriage is provided. A base that runs on its own as if it were running,
A feeder that hangs down from the substrate, has a yarn feeder at the lower end, moves up and down with respect to the substrate, supplies yarn from the yarn feeder to the knitting needle at the lowered yarn feeder position, and can raise the yarn feeder to the standby position. With the rod
In the yarn feeder of the flat knitting machine including
The substrate is provided with a pressing portion, and the substrate is provided with a pressing portion.
A brake member supported by the substrate so that it can move relative to the substrate within a preset operating range.
The braking surface facing the road and
The pressure receiving part that receives the pressure from the pressing part in the middle of the operating range,
Including brake members with
When the pressing portion presses the pressure receiving portion, the braking surface is pressed against the traveling path, and the sliding resistance of the brake member with respect to the traveling path is increased more than the resistance received by the brake member due to the relative movement with respect to the substrate, so that the substrate becomes the traveling path. On the other hand, even if the vehicle travels, the brake member will be in a braking state where it will stop with respect to the travel path.
When the brake member moves to any of both ends of the operating range due to relative movement with respect to the substrate, the pressure from the pressing portion is reduced, and the sliding resistance of the braking surface with respect to the traveling path is reduced, so that the braking state is released. The substrate runs along with the brake member,
Between the feeder rod, the substrate and the brake member,
A vertical mechanism is formed that converts the relative movement between the substrate and the brake member into the vertical movement of the feeder rod and raises the feeder rod in the braking state of the brake member.
It is a yarn feeder of a flat knitting machine characterized by this.

Further, in the present invention, the pressing portion and the pressure receiving portion slide in the operating range.
It is characterized by that.

Further, the vertical mechanism of the present invention is
A guide portion provided on the substrate and guiding the vertical movement of the feeder rod, and
A vertical cam provided on the brake member to drive the vertical movement of the feeder rod, and
A driven part provided on the feeder rod and driven by the upper and lower cams,
It is characterized by including.

Further, the brake member is
The pressure receiving portion has a shape in which the pressing from the pressing portion is larger than that at both ends.
The portion transitioning from both ends where the pressing is reduced to the pressure receiving portion has a transition portion for smoothly increasing the pressing.
It is characterized by that.

Further, the vertical mechanism of the present invention is
A guide portion provided on the brake member to guide the vertical movement of the feeder rod, and a vertical cam for driving the vertical movement of the feeder rod.
A driven part provided on the feeder rod and driven by the upper and lower cams,
It is characterized by including.

Further, in the present invention, in the operating range, the pressing portion and the pressure receiving portion swing around a swing shaft provided on the substrate.
It is characterized by that.

Further, the substrate of the present invention has a roller traveling on a rail provided on the traveling path.
The sliding resistance is generated at the rail and the braking surface of the brake member.
It is characterized by that.

According to the present invention, the brake member can move relative to each other within the operating range preset on the substrate. When the yarn feeder runs by lowering the yarn feeder to the yarn feeder position, the brake member is moved to one of both ends of the operating range by the relative movement with respect to the substrate. The substrate carries the brake member, and the yarn feeder can be self-propelled with reduced sliding resistance to the track. If the traveling of the substrate is stopped, slightly moved in the opposite direction, and then stopped, the brake member moves to the middle of the operating range due to the relative movement with respect to the substrate, and the braking state is established. With this relative movement, the vertical mechanism can surely raise the yarn feeder to the standby position. The raised yarn feeder can be kept on standby so as not to collide with or interfere with other yarn feeders and in a state where the sliding resistance to the traveling path is increased by the brake member.

Further, according to the present invention, it is possible to shift between the braking state and the braking state by sliding between the pressing portion of the substrate and the pressure receiving portion of the brake member.

Further, according to the present invention, since the feeder rod travels together with the substrate provided with the guide portion, the traveling position of the yarn feeder can be made to correspond to the substrate.

Further, according to the present invention, due to the relative movement between the substrate and the brake member, the pressing portion of the substrate passes from the end portion of the brake member through the transition portion and moves to the pressure receiving portion. When shifting from the state where the pressure is reduced at the end to the braking state where the pressure is increased at the pressure receiving part, a large force due to the wedge effect is applied perpendicular to the intrusion direction, similar to the case where a wedge with a small angle is inserted into a narrow gap. It can act as a pressing force.

Further, according to the present invention, since the guide portion for guiding the vertical movement of the feeder rod is provided on the brake member, the feeder rod travels together with the brake member. When the substrate starts running while the brake member is in a braking state with respect to the traveling path and is stopped, the feeder rod moves up and down until the brake member moves relative to the end of the operating range and is taken. It descends by the mechanism. The feeder rod can be run so as to be carried to the substrate together with the brake member after the yarn feeding port is lowered to the yarn feeding position.

Further, according to the present invention, if the brake member moves relative to each other by swinging around the swing shaft provided on the substrate, it is possible to shift between the braking state and the braking state. The range of movement of the brake member is limited around the swing axis, and the space required for the operating range can be reduced to reduce the size of the mechanism.

Further, according to the present invention, the rail of the traveling path can be shared by the roller and the brake member, and the braking portion of the brake member can directly act on the rail to increase the sliding resistance.

FIG. 1 is a front view showing a schematic configuration of a yarn feeder 4 according to a first embodiment of the present invention. FIG. 2 is a simplified rear view showing a state in which the yarn feeder 4 of FIG. 1 is lowered to the yarn feeding position 9 and a state in which the yarn feeder 20a is raised to the resting position. FIG. 3 is a front view and a right side view of a portion related to the substrate 1 shown in FIG. FIG. 4 is a front view and a right side view of a portion related to the feeder rod 2 shown in FIG. FIG. 5 is a front view and a right side view of a portion related to the brake member 3 shown in FIG. FIG. 6 is a front view showing a simplified modification of the yarn feeder 4 of FIG. FIG. 7 is a front view showing a simplified operation principle of moving the feeder rod 52 up and down with the yarn feeder 50 according to the second embodiment of the present invention. FIG. 8 is a front view showing a simplified operation principle of moving the feeder rod 62 up and down with the yarn feeder 60 according to the third embodiment of the present invention.

Hereinafter, FIGS. 1 to 6 will describe a schematic configuration and operation of the yarn feeder (hereinafter, may be abbreviated as YF) 4, which is the first embodiment of the present invention. 7 and 8 show schematic configurations for Example 2 and Example 3 of the present invention, respectively. In the description of the second embodiment and the third embodiment, the configuration corresponding to the portion described in the first embodiment may be simplified and referred to with the same reference numerals. In addition, for convenience of explanation, parts not shown in the figure to be explained may be referred to with reference marks described in other figures.

FIG. 1 shows a schematic configuration of a YF 4 including a substrate 1, a feeder rod 2, and a brake member 3 as a front view as a first embodiment of the present invention. The YF 4 is mounted on the traveling path 5 installed above the tooth openings of the flat knitting machine, and is towed by the belts 6 and 7 to travel. A mechanism for driving the belts 6 and 7 (not shown) is provided at the longitudinal end of the traveling path 5. Wires and chains can be used instead of the belts 6 and 7. It is also possible to mount a drive source such as a motor on the YF4.

The cam carriage (not shown) is equipped with a knitting cam that travels on the knitting needles juxtaposed on the needle bed and advances and retreats the knitting needles. The YF4 and the cam carriage travel in synchronization with each other to supply the knitting yarn to the knitting needle driven by the knitting cam. A support plate 10, a lower roller 11a, and an upper roller 11b are attached to the substrate 1 of the YF4. The upper roller 11b is supported by the lever 11c and is pressed against the upper rail 5b by the urging by the wire spring 12. The lower roller 11a and the upper roller 11b roll on the lower rail 5a and the upper rail 5b, respectively. The brake member 3 is movable up and down, and when it moves downward, it presses against the lower rail 5a to increase the sliding resistance between the substrate 1 and the traveling path 5.

The feeder rod 2 is hung from the substrate 1 and can move up and down along the alternate long and short dash line 2a with respect to the substrate 1 by the vertical mechanism 4a described later. The knitting yarn is supplied from the side or the upper side of the needle bed, is provided at the lower end of the feeder rod 2 via the yarn guide 13 provided on the substrate 1, and is supplied with the yarn feeding tip 20 lowered to the yarn feeding position 9. The knitted fabric is knitted by being supplied to the knitting needle via the clues 20a. The upper portion of the thread feeding tip 20 is held by the holding portion 2b at the lower end of the feeder rod 2. The feeder rod 2 forms an upper driven portion 21. The vertical movement of the driven portion 21 is guided by the guide groove 10a provided in the support plate 10. The feeder rod 2 and the driven portion 21 are arranged on the surface side of the substrate 1, and the support plate 10 is arranged on the surface side of the substrate 1 further than the driven portion 21.

FIG. 2 is a simplified rear view of FIG. 1 showing a state (a) in which the yarn feeding port 20a of the feeder rod 2 is lowered to the yarn feeding position 9 and a state (b) in which the yarn feeding port 20a is raised to the standby position. .. The YF 4 is towed by the belts 6 and 7 to supply yarn to the knitting needle from one of the traveling paths 5, for example, in FIG. 2A, the yarn feeding port 20a descending to the yarn feeding position 9 while traveling to the right of the figure. When stopping the running of the YF4, the belts 6 and 7 stop towing to one side. If the traction to one side by the belts 6 and 7 is resumed, the YF4 resumes running in a state where the yarn feeding port 20a is lowered to the yarn feeding position 9. In order to raise the yarn feeder 20a to the standby position and suspend the YF4, the belts 6 and 7 are slightly pulled to the other side, and the substrate 1 is moved to the left to shift to the braking state shown in FIG. 2B. After letting it stop towing. When the traveling direction of the YF 4 is reversed from one to the other and the traveling is continued, the direction of traction by the belts 6 and 7 is switched from one to the other. Even if the substrate 1 and the brake member 3 are temporarily stopped at the time of switching the direction, the substrate 1 is towed to the other by the pulling to the other by the belts 6 and 7, and the brake member 3 is taken to the other. .. By the time the brake member 3 is taken, the yarn feeding port 20a rises from the yarn feeding position 9 to the standby position once, and then descends to the yarn feeding position 9 again. The operation of YF4 by pulling the belts 6 and 7 in this way is similarly performed in Examples 2 and 3 described later.

The brake member 3 is supported by the substrate 1 so that it can move relative to each other within a predetermined operating range in the traveling direction of the YF 4. This operating range is defined by the operating elongated hole 30 provided in the brake member 3. The brake member 3 is in a state where (a) is on the one end portion 30a side of the operating range and (b) is in the middle of the operating range. The lower surface of the operating elongated hole 30 is formed from one end portion 30a through an intermediate pressure receiving portion 30b and the other end portion 30c. The lower end of the brake member 3 is a braking surface 31 facing the lower rail 5a of the traveling path 5. A roller 14 supported from the substrate 1 via the support plate 10 is inserted into the operating elongated hole 30. The pressure receiving portion 30b is formed so as to be higher than the bottom surface of the one end portion 30a and the other end portion 30c from the lower end of the brake member 3. When the roller 14 is located in the pressure receiving portion 30b at the intermediate position of the operating elongated hole 30, the brake member 3 moves downward with respect to the substrate 1. The roller 14 acts as a pressing portion against the lower surface of the operating elongated hole 30 including the pressure receiving portion 30b.

As shown in (b), the pressure receiving portion 30b receives downward pressure from the roller 14 in the middle of the operating range. In the brake member 3, the braking surface 31 is pressed against the lower rail 5a of the traveling path 5, and the sliding resistance with respect to the traveling path 5 increases. When the traction of the belts 6 and 7 is stopped, the YF4 raises the yarn feeder 20a to the standby position and stops in the braking state. Even when the roller 14 is pressing downward against the pressure receiving portion 30b, the resistance to the relative movement between the roller 14 and the brake member 3 is not so large, so that the braking state can be easily achieved by pulling with the belts 6 and 7. It can be released.

When the substrate 1 is pulled to the left in the figure by the belts 6 and 7 from the braking state shown in (b), the roller 14 reaches one end 30a as shown in (a). When the roller 14 moves to any of both ends, including the case where the roller 14 reaches the other end 30c, the pressure from the roller 14 on the lower surface of the operating elongated hole 30 is reduced, and the braking surface 31 with respect to the traveling path 5 is reduced. The braking state is released by reducing the sliding resistance. Further, when the substrate 1 is pulled to the left, the brake member 3 is also taken to the substrate 1 via the roller 14 at one end 30a of the operating elongated hole 30, and the entire YF4 including the brake member 3 is included. Travels to the left in the state of (a).
The brake member 3 is also provided with an upper and lower cam 32. The upper and lower cams 32 are formed as groove cams having a mountain-shaped shape with a high center and low ends. A hollower 22 supported by a driven portion 21 provided on the upper portion of the feeder rod 2 is inserted into the upper and lower cams 32.

As shown in (a), when the brake member 3 is taken to the substrate 1, the hollower 22 is at a low position at one end of the upper and lower cams 32. The feeder rod 2 is also lowered from the hollower 22 via the driven portion 21. Since the braking state by the brake member 3 is released while the substrate 1 is traveling, the sliding resistance with respect to the traveling path 5 can be reduced as compared with the conventional technique.

In the braking state as shown in (b), the hollower 22 rises to a high position in the center of the upper and lower cams 32 due to the relative movement of the base 1 with respect to the brake member 3, and the feeder rod 2 also rises. The hollower 22 is supported by the driven portion 21 which is the front surface side of the substrate 1 with reference to the front view of FIG. 1, and the brake member 3 which penetrates the through hole 15 provided in the substrate 1 and becomes the back surface side of the substrate 1. It is affected by the action of the upper and lower cams 32. The upper and lower cams 32 are groove cams provided inside the outer circumference of the plate-shaped brake member 3, but for example, a cam that pushes up the feeder rod 2 in a convex shape is provided on the upper edge of the outer circumference of the brake member 3. , The feeder rod 2 may be lowered by its own weight or spring force. Between the feeder rod 2, the substrate 1 and the brake member 3, the relative movement between the substrate 1 and the brake member 3 is converted into the vertical movement of the feeder rod 2, and the feeder rod 2 is raised in the braking state of the brake member 3 up and down. The mechanism 4a is formed. The vertical mechanism 4a moves the hollower 22 to a high position in the center of the vertical cam 32 by the relative movement of the base 1 with respect to the brake member 3 that stops in the braking state with respect to the traveling path 5, and reliably raises the feeder rod 2. be able to.

FIG. 3 shows the configuration of the portion related to the substrate 1 shown in FIG. The substrate 1 is provided with a pressing hole 16 for projecting the roller 14 supported by the support plate 10 toward the back surface side, and a mounting hole 17 for mounting the support plate 10 on the front surface side. A spring receiver 18 for receiving the central portion of the wire spring 12 shown in FIG. 1 is also formed. A mounting hole 19 for mounting the lever 11c urged by the wire spring 12 in a swingable state is also provided. The substrate 1 has a hanging portion 1c in which the guide projection 1b is provided at the lower end. The guide protrusion 1b serves as a guide portion for guiding the vertical movement of the thread feeding tip 20.

4A and 4B show the configuration of a portion related to the feeder rod 2 shown in FIG. 1 as a front view in (a) and a right side view in (b). The feeder rod 2 has a thread feeding tip 20 attached to the lower portion and a driven portion 21 attached to the upper portion. As shown in (a), a guide groove 20b is provided on the side of the yarn feeding tip 20. The guide protrusion 1b of the substrate 1 is inserted into the guide groove 20b and guides the vertical movement of the feeder rod 2 to which the thread feeding tip 20 is attached.

FIG. 5 shows the configuration of a portion related to the brake member 3 shown in FIG. (A) shows a state in which a roller 14 that supports the brake member 3 and the support plate 10 with the support plate 10 is inserted into the operating elongated hole 30 of the brake member 3. The left side shows the braking state corresponding to FIG. 2A, and the center shows the braking state corresponding to FIG. 2B. The right side shows the configuration of the right side surface. The support plate 10 is provided with screw holes 10b, and can be attached to the mounting holes 17 of the substrate 1 with screws 10c. A substrate 1 is interposed between the support plate 10 and the brake member 3.

(B) shows the shape of the brake member 3. At the lower end of the brake member 3, a braking surface 31 that faces the lower rail 5a and is in close contact with the lower rail 5a is formed by crimping. The lower rail 5a can be shared by the lower roller 11a and the brake member 3, and the braking surface 31 of the brake member 3 can be directly acted on the lower rail 5a to increase the sliding resistance.

(C) shows the shape of the operating elongated hole 30. In the operating elongated hole 30, the lower side of the pressure receiving portion 30b and the upper side facing the pressure receiving portion 30b at an interval of 30 h extend in the left-right direction in the figure, and both ends form a circular oval. However, the one end portion 30a has a circular shape including the left half of the outer circumference of the virtual circle 30x having a diameter of 30y larger than the interval 30h. The other end portion 30c has a circular shape including the right half of the outer circumference of the virtual circle 30x. At one end 30a and the other end 30c, the upper top of the virtual circle 30x has the same height as the upper side, and the bottom surface, which is the lower top, is lower than the pressure receiving portion 30b. The interval 30h is slightly larger than the diameter of the roller 14.

In the operating elongated hole 30, transition portions 30d and 30e that guide the roller 14 to smoothly increase the pressing are provided at the portions of the one end portion 30a and the other end portion 30c that transition from the bottom surface of the virtual circle 30x to the pressure receiving portion 30b, respectively. Have. Due to the relative movement between the base 1 and the brake member 3, the roller 14 of the base 1 moves from one end 30a or the other end 30c of the brake member 3 to the pressure receiving portion 30b through the transition portions 30d and 30e. When shifting from the state in which braking is released at one end 30a or the other end 30c to the braking state at the pressure receiving portion 30b, the braking surface 31 of the brake member 3 and the pressure receiving portion 30b are brought into contact with the roller 14 and the lower rail 5a. It will be inserted in between. In this insertion, a large force due to the wedge effect, similar to the case of inserting a wedge at a small angle into a narrow gap, can be applied as a downward pressing force in the figure. The one end portion 30a and the other end portion 30c do not have a shape in which only the lower top portion of the virtual circle 30x has a bottom surface, and the bottom surface thereof is extended in the lateral direction of the figure, for example, as shown by a broken line. It may have a different shape.

(D) shows the structure of the support plate 10. The roller 14 is rotatably supported by the shaft 14a. Since the roller 14 rolls, the resistance when the substrate 1 and the brake member 3 move relative to each other is the brake member 3 including the case where the braking state is released and the braking surface 31 is not pressed against the lower rail 5a. It becomes smaller than the sliding resistance between the and the traveling path 5. Therefore, the substrate 1 and the brake member 3 can always move relative to each other within the operating range. The pressing portion may have a relative movement resistance with respect to the brake member 3 smaller than the sliding resistance between the brake member 3 and the traveling path 5, and is not limited to the roller 14, but may be replaced with a pin or the like.

FIG. 6 shows a simplified example of the above-mentioned modification of YF4. In the description of FIGS. 1 to 5, the brake member 3 is provided with two working long holes 30, but this is an example in which only one portion corresponding to the lower side of the working long hole is provided. A portion corresponding to one end portion 30a, a pressure receiving portion 30b, the other end portion 30c, and the transition portions 30d and 30e may be provided on the upper side of the brake member 3 and pressed by the roller 14. Although the brake member 3 is pressed downward by the roller 14, the brake member 3 may be pressed upward to form a braking state. When pressing upward, a portion corresponding to the braking surface 31 may be provided above the brake member 3, and a portion pressed by the roller 14 may be provided below the brake member 3 to be pressed against the upper rail 5b.

FIG. 7 shows a simplified operation principle of moving the feeder rod 52 up and down in the YF 50 according to the second embodiment of the present invention. In the second embodiment, the base 51 does not directly support the feeder rod 52, but the brake member 53 supports the feeder rod 52 vertically via the support guide portion 54. The brake member 53 is basically the same as the brake member 3 of FIG. 6, and the hollower 22 is inserted through the upper and lower cams 32. The hollower 22 is supported by the upper part of the driven arm 56, and the lower part of the driven arm 56 is connected to the feeder rod 52 via the driven shaft 55 to form the vertical mechanism 50a. That is, the driven arm 56 is provided so as to swing and transmit the vertical movement drive received by the hollower 22 by the vertical cam 32 to the feeder rod 52.

In FIG. 7, the braking state of (b) and the braking state of (a) and (c) are shifted from the sliding of the roller 14 with respect to the brake member 53 to the swing of the driven arm 56 with respect to the driven shaft 55. do. The support guide portion 54 provided on the brake member 53 serves as a guide portion for guiding the vertical movement of the feeder rod 52. The support guide portion 54, the vertical cam 32, and the driven arm 56 form a vertical mechanism 50a. When the traveling of the base 51 is started in a state where the brake member 53 is in a braking state with respect to the traveling path 5 and is stopped, the feeder rod 52 is lowered by the vertical mechanism 50a due to the relative movement of the base 51 with respect to the brake member 53. .. The feeder rod 52 can be lowered and then carried to the substrate 51 together with the brake member 53 to travel.

FIG. 8 shows a simplified operation principle of moving the feeder rod 62 up and down in the YF 60 according to the third embodiment of the present invention. The feeder rod 62 is directly supported by a substrate (not shown), and vertical movement is also guided.

The brake member 63 swings around a swing shaft 65 provided on the substrate, and the outer circumference of the lower end having a fan shape becomes a braking surface 63b between one end 63a and the other end 63c and forms a lower rail 5a. A contacting part is provided. The fan-shaped shape has a shorter diameter up to the swing shaft 65 at one end 63a and the other end 63c, which are the ends of the outer circumference, than the diameter up to the swing shaft 65 at the braking surface 63b in the middle of the outer circumference. I will do it. In the states shown in (a) and (c), the transition portions 63d and 63e in which the diameter from the outer circumference to the swing shaft 65 decreases from the diameter of the braking surface 63b and shifts to the diameter of the end portion are the lower rails 5a, respectively. In contact with. However, the states shown in (a) and (c) are unstable, and if the substrate runs to the left in (a), the brake is released so that the one end portion 63a contacts the lower rail 5a and releases the braking. The member 63 swings slightly in the clockwise direction of the swing shaft 65. If the substrate travels to the right in (c), the other end 63c comes into contact with the lower rail 5a and the braking is released. If the substrate travels to the right in (a) and to the left in (c), the braking state as shown in (b) is obtained. The swing shaft 65 serves as a pressing portion with respect to the outer periphery where the brake member 63 is in contact with the lower rail 5a. The outer peripheral ends of the brake member 63 are one end 63a and the other end 63c, similar to the one end 30a and the other end 30c of the first and second embodiments. As shown in (b), the braking surface 63b in the middle of the outer circumference in contact with the lower rail 5a serves as a pressure receiving portion similar to that of the first and second embodiments.

The upper portions of the feeder rod 62 and the brake member 63 are connected via the link plate 66. The feeder rod 62 is provided with an elongated hole 62a to allow the swing shaft 65 to pass through the feeder rod 62 so that the feeder rod 62 can move up and down. That is, the brake member 63, the swing shaft 65, and the link plate 66 convert the swing of the brake member 63 due to the relative movement between the base and the brake member 63 into the vertical movement of the feeder rod 62, and in the braking state of the brake member 63. A vertical mechanism 60a for raising the feeder rod 62 is formed.

In the third embodiment as described above, the moving range of the brake member 63 is limited around the swing shaft 65, the space required for the operating range can be reduced, and the mechanism can be miniaturized.

1,51 Base 1b Guide protrusion 2,52,62 Feeder rod 3,53,63 Brake member 4,50,60 Yarn feeder (YF)
4a, 50a, 60a Vertical mechanism 5 Running path 5a Lower rail 5b Upper rail 6,7 Belt 8 Knitting yarn 9 Thread feeding position 10 Support plate 12 Wire spring 14 Roller 20 Thread feeding tip 20a Thread feeding port 21 Driven part 22 Hollower 30 Operating length Holes 30a, 63a One end 30b Pressure receiving part 30c, 63c The other end 30d, 30e; 63d, 63e Transition part 31; 63b Braking surface 32 Upper and lower cam 54 Support guide part 55 Driven shaft 56 Driven arm 65 Swing shaft

Claims (7)

It is a flat knitting machine equipped with a cam that drives the knitting needle to move forward and backward to the tooth opening . A self-propelled substrate and
A feeder that hangs down from the substrate, has a yarn feeder at the lower end, moves up and down with respect to the substrate, supplies yarn from the yarn feeder to the knitting needle at the lowered yarn feeder position, and can raise the yarn feeder to the standby position. With the rod
In the yarn feeder of the flat knitting machine including
The substrate is provided with a pressing portion, and the substrate is provided with a pressing portion.
A brake member supported by the substrate so that it can move relative to the substrate within a preset operating range.
The braking surface facing the road and
The pressure receiving part that receives the pressure from the pressing part in the middle of the operating range,
Including brake members with
When the pressing portion presses the pressure receiving portion, the braking surface is pressed against the traveling path, and the sliding resistance of the brake member with respect to the traveling path is increased more than the resistance received by the brake member due to the relative movement with respect to the substrate, so that the substrate becomes the traveling path. On the other hand, even if the vehicle travels, the brake member will be in a braking state where it will stop with respect to the travel path.
When the brake member moves to any of both ends of the operating range due to relative movement with respect to the substrate, the pressure from the pressing portion is reduced, and the sliding resistance of the braking surface with respect to the traveling path is reduced, so that the braking state is released. The substrate runs along with the brake member,
Between the feeder rod, the substrate and the brake member,
A vertical mechanism is formed that converts the relative movement between the substrate and the brake member into the vertical movement of the feeder rod and raises the feeder rod in the braking state of the brake member.
A yarn feeder of a flat knitting machine characterized by that. In the operating range, the pressing portion and the pressure receiving portion slide.
The yarn feeder of the flat knitting machine according to claim 1. The vertical mechanism is
A guide portion provided on the substrate and guiding the vertical movement of the feeder rod, and
A cam provided on the brake member to drive the vertical movement of the feeder rod,
A driven part provided on the feeder rod and driven by a cam,
The yarn feeder of the flat knitting machine according to claim 1 or 2, wherein the yarn feeder comprises. The brake member is
The pressure receiving portion has a shape in which the pressing from the pressing portion is larger than that at both ends.
The portion transitioning from both ends where the pressing is reduced to the pressure receiving portion has a transition portion for smoothly increasing the pressing.
The yarn feeder of the flat knitting machine according to any one of claims 1 to 3, wherein the yarn feeder is characterized by the above. The vertical mechanism is
A guide portion provided on the brake member to guide the vertical movement of the feeder rod, and a cam for driving the vertical movement of the feeder rod.
A driven arm installed on the feeder rod and driven by a cam,
The yarn feeder of the flat knitting machine according to claim 1 or 2 , wherein the yarn feeder comprises.
Within the operating range, the pressing portion and the pressure receiving portion swing around a swing shaft provided on the substrate.
The yarn feeder of the flat knitting machine according to claim 1. The substrate has a roller traveling on a rail provided on the traveling path.
The sliding resistance is generated at the rail and the braking surface of the brake member.
The yarn feeder of the flat knitting machine according to any one of claims 1 to 6, wherein the yarn feeder is characterized by the above.

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