JPH0359189B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a drive means for moving a carriage to the left or right, which is movable from side to side on a needle bed in which a large number of knitting needles are arranged in a row. This invention relates to a carriage drive device for a knitting machine.

[Prior Art] Conventionally, as a carriage drive device, there is one disclosed in, for example, Japanese Patent Laid-Open No. 53-130358.
That is, this thing has two parts on both the left and right sides of the carriage.
A butt detector is provided with a contact element that is closed when it comes into contact with the butts of knitting needles in the knitting section, and after the butt detector on the carriage leading side is brought out to the outside of the group of knitting needles in the knitting section, The counter device accumulates a predetermined number of counts until the row-side butt detector goes outside the knitting needle group in the knitting section, and when the count reaches a predetermined value, the rotation direction of the motor is reversed. , the carriage is moved in reverse.

[Problems to be Solved by the Invention] According to the conventional method, each contact element of the left and right butt detectors is always in contact with all of the knitting needle groups in the knitting section. They must be constructed of materials that easily promote friction and are highly durable. In addition, each contact element, butt,
It is necessary to always maintain the dimensional accuracy of the butt guide passage, etc., and further consideration is required, such as separately providing a contact element made of a spring for pressing the butt on each contact element side. Thus, if the friction is accelerated or the associated dimensional accuracy is reduced, the butt detection function may become inaccurate.

However, in the present invention, after the knitting of a knitting section is completed, a driving force is generated by directly engaging the switching body with the idle knitting needle adjacent to the knitting needle at the side end of the knitting section, and the driving force is generated by this driving force. Therefore, it is an object of the present invention to provide a carriage drive device that can automatically and reliably reverse the carriage by driving various mechanisms that change the direction of movement of the carriage.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a carriage that has a large number of knitting needles arranged in a row and is movable from side to side on a needle bed, and is movable from side to side within a certain range. a feed dog which is installed in the needle bed and is removable from the rack of the needle bed, and which is operatively connected to the feed dog;
A feed lever that moves the carriage to the left or right by moving the feed dog to the left or right while the feed dog is easily engaged, and a left feed that drives the feed lever to the left or right. In the key carriage drive device, the carriage is provided with a left side portion of the carriage, and is engaged from the left side with respect to a rest knitting needle adjacent to the right side of the knitting needle at the right end of the knitting section. A left-side switching body that is engaged with the idle knitting needle and moves relative to the carriage by engaging with the idle knitting needle from the right side and avoids the idle knitting needle and does not cause the relative movement. is provided on the right side of the carriage, and is engaged from the right side with a resting needle adjacent to the left side of the knitting needle at the left end of the knitting section, thereby being locked to the resting needle and moving relative to the carriage, a right switching body that engages with the dormant knitting needle from the left to avoid the dormant knitting needle and does not cause the relative movement; and a left switching body that is connected to each of the left and right switching bodies; a slide member that moves in one direction in conjunction with the relative movement of the right switching body and moves in the other direction in conjunction with the electric relative movement of the right switching body; an actuating member disposed in two different positions by movement of one and the other of the members; and an actuating member disposed in one of the two positions being displaced in one direction, and the actuating member being disposed in the other position. Leftward and rightward actuation cams that displace the member in the other direction are operatively connected to the actuating member and the feed lever, and the feed lever is moved to the left by displacement of the other moving member in the one direction. It is provided with an interlock switching member that acts on the feeding cam and causes the feeding lever to act on the rightward feeding cam by displacement of the actuating member in the other direction.

[Function] For example, based on the right feed cam, the carriage is moved to the right on a knitting section by the action of a feed dog, a feed lever, etc., and when it reaches the right side of the knitting section, the left switching body engages from the left side with the idle knitting needle on the right side of the knitting needle at the right end of the knitting section, and when the carriage is further moved to the right in this engaged state, the left switching body displaces the slide member. This displacement causes the feed lever to act on the leftward feed cam. Thereafter, based on the action of the leftward feeding cam, the carriage is moved to the left over the knitting section by the action of the feeding dog, the feeding lever, etc. When the carriage reaches the left side of the knitting section, the right switching body engages from the right side with the idle knitting needle adjacent to the left of the knitting needle at the left end of the knitting section, and in this engaged state, When the carriage is moved further to the left, the right switching pair moves with the slide member and causes the moving slide member to displace and actuate the actuating member, which displacement causes the feed lever to be actuated. is applied to the rightward feed cam. Thereafter, based on the action of the rightward feed cam, the carriage is moved to the right over the knitting section by the action of the feed dog, the feed lever, etc.

[Embodiment] An embodiment embodying the present invention will be described below with reference to FIGS. 1 to 12. As shown in FIGS. 1 and 3, a large number of knitting needles 2 are supported in rows at predetermined intervals so as to be movable back and forth on a needle bed 1 extending in the left-right direction. The butt 2a of the knitting needle 2 passes through the needle guide groove 4 of the groove plate 3 and projects upward. At the front edge of the needle bed 1, comb teeth 5 are provided which are located between the knitting needles 2 and protrude forward.

As shown in FIG. 2, in the knitting rest section of the needle bed 1, the knitting needles 2 located at the rear resting position correspond to the butts 2a of the knitting needles 2 located further outside, approximately a needle pitch apart from the knitting needles 2 on both the outside. A pair of left and right avoidance bodies 6 and 7 are protruded from the needle bed 1 and have the same protrusion height as the butt 2a. Each of the avoidance bodies 6 and 7 has vertical surfaces 6a and 7a formed on its inner edge, and sloped surfaces 6b and 7b that slope outward and downward, respectively, on its outer side.
Further, a rack 8 is provided at the rear edge of the needle bed 1 and is provided with a large number of teeth 8a that protrude at the same pitches as the knitting needle arrangement pitches.

A carriage 10 is mounted on the upper surface of the needle bed 1 so as to be movable left and right. As shown in Figure 1,
A guide groove 11 is formed on the rear edge of the lower surface of the carriage 10 to be engaged with the rack 8 from above, and the butt 2a of the knitting needle 2 is introduced to the center of the lower surface of the carriage 10 and then guided out of the carriage 10. A butt passage 12 is formed substantially parallel to the electrical guide groove 11. A known butt actuating body 13 is disposed on the upper surface of the central portion of the carriage 10 for gripping the butt 2a of the knitting needle 2 introduced into the center of the guide groove 11 and moving it in the front and back direction. Further, as shown in FIG. 3b, three cam wheels 14 to 1 are arranged in layers on the base plate 10a of the carriage 10.
A knitting needle actuating mechanism 17 including the butt actuating body 13 is actuated on the upper surface of the lower cam ring 16 to move the knitting needle 2 between the front flattening position and the rear knockover position. A knitting needle drive cam 18 (see FIG. 11) for moving back and forth is formed.

On the other hand, as shown in FIG.
A drive motor 20 for rotationally driving the is attached. Motor shaft 20a of this drive motor 20
A drive bevel gear 21 is fixedly attached to the drive bevel gear 21 . In front of the drive bevel gear 21, a driven bevel gear 22 and a first intermediate gear 23 that mesh with the drive bevel gear 21 are supported on the base plate 10a so as to be rotatable around a vertical axis. Between this first intermediate gear 23 and each of the cam wheels 14 to 16, a large diameter second intermediate gear 2 rotating around a vertical axis is mounted on the base plate 10a.
4 and a small-diameter third intermediate gear 25 are provided.
An intermediate gear 24 meshes with the first intermediate gear 23, and a third intermediate gear 25 meshes with the intermediate cam gear 15.
It is meshed with a driven gear 15a formed on the outer periphery of. Therefore, when the drive motor 20 is rotationally driven in a predetermined direction, each of the cam wheels 14 to 16 is rotated through the drive bevel gear 21, the driven bevel gear 22, the first to third intermediate gears 23 to 25, and the driven gear 15a. are integrally driven to rotate clockwise in FIG.

As shown in FIG. 1, a support frame 26 is supported movably in the front and back direction at the front of the carriage 10.
A counter needle 27 facing the knitting needle 2 is rotatably supported, and its hook 27a is arranged opposite to the knitting needle 2. Further, on the lower surface of the intermediate cam ring 15, an opposed needle actuating mechanism 2 including the support frame 26 is provided.
8 to move the opposing needle 27 back and forth between the flattening position where it is close to the needle bed 1 and the knock-over position where it is away from the needle bed 1.
9 (see FIG. 11), and an upper cam ring 14
The opposite needle actuating mechanism 28 is operated to connect the hook 27a of the opposite needle 27 to the hook 2a of the knitting needle 2.
opposed needle actuating cam 30 for coupling and disengaging the
is formed.

As shown in FIG. 2, FIG. 3a, and FIG.
A thread opening 36 for supplying knitting yarn to the needle 2 or the opposing needle 27 is attached to the holder. On the other hand, the third
As shown in FIG. b, on the left side of each of the cam wheels 14 to 16, an operating shaft 37 that passes through a base plate 10a and an upper plate 10b supported above the base plate 10a is attached to the carriage 10 for vertical movement and rotation. supported as possible,
The operating shaft 3 is located between the base plate 10a and the upper plate 10b.
An operating member 38 is inserted into and fixed to 7 at its base end. The lower arm portion 39 of the actuating member 38
A pin 39a protruding from the tip is connected to the thread operating arm 35.
The operating member 38 and the thread operating arm 35 are connected by the pin 39a. Further, on the upper arm portion 40 of the operating member 38, there is a rightward operating cam 42 formed on the upper surface of the intermediate cam ring 15 that continues in a groove shape over 360 degrees, and an upper cam ring 1.
A follower 41 that can be selectively engaged with a leftward movement operating cam 43 formed on the lower surface of the cam 4 is inserted and fixed.

A switching member 44 is formed by bending a metal plate on the base plate 10a below the operating member 38.
(which constitutes an interlocking member in cooperation with a reversing lever 98 described later) is supported so as to be movable back and forth, and its inner upright portion 45a has a low cam portion 46a and a high cam portion 4.
A cam groove 46 is formed with a connecting pin 3 protruding from the operating shaft 37.
7a is engaged. Moreover, the switching member 44
The upper end of the outer upright portion 45 passes through the elongated hole of the upper plate 10b and projects onto the upper plate 10b. As shown in FIG. 3b, when the switching member 44 is located at the rear switching position, the linking pin 37a of the operating shaft 37 is engaged with the low cam portion 46a of the cam groove 46, thereby causing the operating The actuating member 38 together with the shaft 37 is arranged in a downward movement position;
The follower 41 is a rightward operating cam 42 shown in FIG.
is engaged with. On the other hand, when the linking pin 37a is engaged with the high cam portion 46b of the cam groove 46 as the switching member 44 moves forward, the actuating member 38 is placed in the upper movement position, and the follower 41
is engaged with the leftward operation cam 43.

As shown in FIG. 2, FIG. 3a, FIG. 4, and FIG.
51a, and are rotatably connected via a shaft pin 52 at their inner ends. Each rotating lever 50,5
Feed teeth 53 each having an engaging portion 54 that can be engaged with and disengaged from the rack 8 are connected to the outer end of each of the feed teeth 1 so as to be movable up and down. In addition, an inverted U-shaped feed dog 55 is provided on the front surface of both rotating levers 50, 51.
Each outer feed dog 5 is provided at both ends of the feed dog 55.
An engaging portion 56 that can be engaged with and disengaged from the crack 8 is formed on the inside of the crank 3 . Further, a pair of left and right elongated holes 57 are formed at a predetermined interval on the upper side of the feed dog 55, and each elongated hole 57 has a rotating lever 50,
A pair of pins 5 protruding from 51 at a predetermined interval.
8 are respectively engaged. On the other hand, as shown in FIG. 2, a substantially L-shaped feed switching lever 59 is rotatably supported on the carriage 10 by its central shaft support 59a, and a connecting pin 60 protrudes from its rear end. The connecting piece 50b is inserted into a long hole in a connecting piece 50b that projects from the upper edge of the one rotating lever 50. Further, a follower 61 is provided protruding from the left end of the switching lever 59. Further, the upper cam ring 14
A feed switching cam 62 (see FIG. 11), which has a groove shape and communicates over 360 degrees, is formed on the lower surface of the feed cam 62, and is engaged with the feed cam 62. As each of the cam wheels 14 to 16 rotates, the pair of rotary levers 50 and 51 are rotated when the follower 61 of the feed switching lever 59 is engaged with the small diameter portion 62a of the feed switching cam 62. The outer feed dog 53 is arranged in the position shown in FIG.
is removed from the rack 8, and the elongated hole 57 and pin 5 are removed.
8, the pair of inner feed teeth 56 is engaged with the rack 8. On the other hand, in the state where the follower 61 is engaged with the large diameter portion 62b of the feed switching cam 62, both rotating levers 50, 51 are in the sixth position.
The outer feed dog 53 is placed in the position shown in FIG.

As shown in FIG. 2, a feed lever 70 is rotatably supported at its center on the carriage 10 around a shaft 70a, and the lower edge of the inner feed dog 55 is attached to the rear end. A square piece 71a that is engaged with an engagement recess 63 formed in the square piece 71a is rotatably supported by a shaft pin 71c. Further, a follower 71b is provided protruding from the front end of the feed lever 70. On the other hand, a feeding cam 72 is formed on the lower surface of the lower cam ring 16 and has a groove shape and communicates with each other over 360 degrees.
The outer wall portion constitutes a rightward feeding cam 73 for stepping the carriage 10 to the right, and the inner wall portion constitutes a leftward feeding cam 74 for stepping forwarding the carriage 10 to the left. It consists of The follower 71b of the feed lever 70 is engaged with the feed cam 72. Note that the drive motor 20, each gear 21 to 25, 15a, the feed dog 55,
A drive means A for moving the carriage 10 to the left or right is constituted by the feed lever 70, the square piece 71a, the feed cam 72, and the like.

Further, a connecting lever 75 is supported at the center of the carriage 10 so as to be rotatable around a shaft 75a.
A connecting pin 76 that engages with a long groove 77 formed on the lower surface of the thread operating arm 35 is formed protruding from its front end, and a locking piece 7 that protrudes upward from its rear end.
8 are integrally formed. Above the connecting lever 75, a pair of rotating levers 7 are mounted on the shaft 75a.
9 and 80 are rotatably supported at their base ends, and are biased to rotate in the closing direction at the distal ends of both levers 79 and 80 by a spring 81 suspended between both levers 79 and 80. The inner edges of the movable levers 79 and 80 can selectively engage with the follower 71b of the feed lever 70 or the locking piece 78.
The thread operating arm 35, the connecting lever 75, and a pair of rotating levers 79, 80 are operatively connected to the operating member 38 and the feed lever 70, so that the operating member 38 can be moved in one direction. An interlocking switching member is configured to cause the feed lever 70 to act on the leftward feeding cam 74 by displacement of the actuating member 38, and to cause the feed lever 7 to act on the rightward feeding cam 73 by displacement of the actuating member 38 in the other direction. configured.

In the state where the thread opening 36 is placed to the right of the opposing needle 27 as shown in FIG. 3a,
Based on the biasing force of the spring 81, the outer rotating lever 8
0 is engaged with the locking piece 78, and at the same time, the inner edge of the inner rotating lever 79 is engaged with the follower 71b of the feed lever 70, whereby the feed lever 70
is urged to rotate clockwise in the figure, and the follower 71b
is engaged with the rightward feeding cam 73. Further, as shown in FIG. 4, when the thread opening 36 is disposed on the left side of the opposing needle 27, the inner edge of the inner rotating lever 79 is moved against the locking piece 7 based on the biasing force of the spring 81.
8, and the inner edge of the outer rotary lever 80 is engaged with the follower 71b of the feed lever 70, and the feed lever 70 is urged to rotate in the counterclockwise direction in FIG. The follower 71b is engaged with the leftward feeding cam 74.

As shown in FIGS. 7 and 8, the upper plate 10b
An operating member 82 for setting and displaying the carriage feed direction is mounted on the upper surface so as to be movable from side to side. A protruding operating knob 82a is provided. A grip portion 82b is formed to protrude from the upper surface of the operation knob 82a, and an indication recess 82c is formed to display the direction of carriage movement in cooperation with a display signal 100 such as an arrow on the carriage cover 83. Further, a pin 82d is provided protruding from the lower surface of the operating portion 82. A tri-arm-shaped intermediate lever 85 is rotatably supported at its center by a shaft 85a on the upper plate 10b behind the operating member 82, and the end of the first arm 85b is attached to the operating member 82. The pin 82d is connected to the pin 82d. The second arm portion 85c of the three-armed intermediate lever 85 is operatively connected to a stage counter (not shown) via a connecting lever 86 that can move back and forth. Furthermore, the intermediate lever 8
A two-arm-shaped intermediate lever 87 is rotatably supported at its center by a shaft 87a on the upper plate 10b between the third arm portion 85d of the switch member 44 and the outer standing portion 45b of the switching member 44. The third arm portion 8 of the tri-arm intermediate lever 85 is located at the end of the one arm portion 87b.
It is connected to the end of 5d. The second arm portion 87c of the two-armed intermediate lever 87 has a fitting groove 89 formed at the upper end of the outer upright portion 45b at its end.
It is loosely fitted.

Therefore, when the operating member 82 is placed at the right position shown in FIG. 8 in order to set the carriage movement direction to the right, switching is performed via the three-armed intermediate lever 85 and the two-armed intermediate lever 87. Member 44 is the third
It is placed in the backward movement position shown in Figure a. When the operating member 82 is moved to the left from the state shown in FIG. 8 and the carriage movement direction is set to the left, the switching member 44 is moved to the front as shown in FIG. 4 via the intermediate levers 85 and 87. placed in position.

As shown in FIGS. 1, 2, 3a, 9a, 9b, and 10, there is a slide on the rear lower surface of the carriage base plate 10a that can be moved left and right within a predetermined range. A member 90 is provided, the slide member 9
A pair of left and right slide frames 91 and 92 are supported on the lower surface of the base plate 10a on both sides of the slide frame 10 so as to be movable left and right within a predetermined range. Both slide frames 91 and 92 are biased to move inward by a spring 93 suspended between mutually opposing inner ends of both slide frames 91 and 92. In the right slide frame 91 and the left slide frame 92, a right switch body 94 and a left switch body 95 are attached to a shaft 94a at approximately the center thereof.
and 95a, respectively rotatably supported,
Each switching body 94, 95 has the slide frame 91,
Engagement portions 96 are formed that protrude outward from the outer ends of 92, respectively. A substantially vertical engagement surface 96a capable of engaging with the butt 2a of the knitting needle 2 located in the rest section is formed at the base end of each engagement portion 96, and the lower surface thereof is inclined outwardly upward. A surface 96b is formed. Moreover, each switching body 9
4 and 95, each of the engaging portions 96 is fixed to each of the slide frames 91 and 92 at its base end by a leaf spring 97.
is urged to rotate in a direction approaching the upper surface of the needle bed 1.

As shown in FIG. 2, on the upper surface of the carriage 10, a reversing lever 98 having a substantially L-shape is rotatably supported by a shaft 98a at its central bent portion, and a connecting pin 99a provided at the rear end thereof is rotatably supported by a shaft 98a. A bent piece 99b, which is operatively connected to the slide member 90 via the slide member 90 and protrudes from its left end, is loosely fitted into the square hole 44a of the switching member 44. Therefore, when the switching member 44 is placed in the rear position shown in FIG. 3a based on the movement operation of the operating member 82, the switching member 44 is reversed about the shaft 98a through the connection between the bent piece 99b and the square hole 44a. Actuation lever 98
is rotated to the position shown in the figure, and the slide member 90
is placed at the rightward movement position shown in the figure. When the switching member 44 is placed in the forward movement position shown in FIG. 4, the reversing lever 98 is placed in the rotating position shown in FIG. 4, and the slide member 90 is placed in the left movement position. . In addition, the thread operating arm 35, the thread operating lever 38, the switching member 4
4, connection lever 75, rotation levers 79, 80, spring 81, slide member 90, slide frame 91, 9
2. A driving direction reversing means B for changing the driving state of the carriage 10 by the driving means A is constituted by the switching bodies 94, 95, the reversing lever 98, and the like.

As shown in FIGS. 9a and 10, above the slide member 90 and slide frames 91, 92, a pair of upper and lower intermediate support plates 110a extending parallel to each other between the base plate 10a and the upper plate 10b; 11
A movable plate 111 that can move in the left-right direction is supported on the upper intermediate support plate 110a, and an upper locking surface 113a is provided on the upper side edge of the upright portion 112 of the movable plate 111. ,11
4a, lower locking surfaces 113b, 114b, and sloped surfaces 113c, 114c that are connected to both locking surfaces 113a, 114a, 113b, 114b, respectively.
Further, a pair of left and right moving pairs 115 are vertically movably inserted and supported in the pair of intermediate support plates 110a and 110b opposite to each of the locking portions 113 and 114, and one side edge of each moving body 115 has the above-mentioned pair of moving bodies 115. Each locking part 113,1
An engaging piece 116 that can be engaged with the moving body 14 is formed, and is urged to move downward by a spring 117 wound around the upper end of each movable body 115. or,
At the upper edge of the upright portion 112 adjacent to the locking portion 114 shown on the right side in FIG. is formed.

As shown in FIGS. 7, 8, and 9a, an operating member is provided on the upper plate 10b for selectively setting the carriage 10 in an automatic reversal state and a state in which it moves in either the left or right direction. 120 is supported so as to be movable in the left-right direction, and an operation knob 121 is formed on the upper surface of the right side thereof and exposed on the carriage cover 83 through a through hole 122 of the carriage cover 83. A grip portion 121a is formed protrudingly on the upper surface of this operation knob 121, and an instruction recess 121b is formed.The instruction recess 121b cooperates with a display symbol 123 attached to the upper surface of the carriage cover 83 to reverse carriage movement. The state and one-way movement state can be displayed. The left end of this operating member 120 is provided with the movable plate 1.
A linking hole 124 into which the No. 11 linking piece 119 is inserted from below is formed, and an elastic piece 125 extending left and right is integrally formed on the front edge of the operating member 120, and an inner edge of the elastic piece 125 is formed. A trapezoidal engaging portion 126 is formed, and a pin 127 that can be engaged with the engaging portion 126 is provided protrudingly on the upper plate 10b.

7 and 8.
In the state where the indicating recess 21b is located at the left movement position shown in the figure and is located relative to the display symbol 123a indicating the automatic reversal state, the linking hole 12
4 and the linking piece 119, the moving plate 11
1 is placed in one of the moving positions shown in FIG. 9a,
Upper locking surface 113, 1 of each changing part 113, 114
The engaging piece 116 of each movable body 115 is engaged with 14a, and each movable body 115 is placed and held in an upward movement position. In this state, since the lower end of each moving body 115 is separated from each switching body 94, 95,
Based on the urging force of the leaf spring 97, each switching body 94,
95 is the butt 2a of the idle knitting needle 2 and each avoidance body 6,
7 in a horizontal position (engaging position).

On the other hand, when the operating member 120 is operated to move rightward (leftward in FIG. 9a) from the position shown in FIG. 8, the engaging portion 126 of the elastic piece 125
After the inner inclined surface 126a of the elastic piece engages with the pin 127, it curves outward against its own elastic force, and then when the engaging part 126 is moved from the left side of the pin 127 to the right side, the elastic piece 125 is rotated back. The indicating recess 121b is disposed relative to the display symbol 123b indicating the carriage moving state in one direction. Further, through the linkage between the linking hole 124 and the linking piece 119, the movable plate 111 moves from the position shown in FIG. 9a to the position shown in FIG. , 114, respectively.
Each movable body 115 is moved downward by the biasing force of the spring 117, and the lower end of each movable body 115 is engaged with the upper surface of the inner end of each switching body 94, 95, so that each switching body 94, 95 becomes a leaf spring. 97, and each engaging portion 96 is placed and held at an upper position (non-engaging position) away from the butt 2a of the knitting needle 2 and each avoidance body 6, 7 in the rest section.

Note that the operating member 128 shown in FIGS. 7 and 8
is for pattern selection, and the operation knob 12
9, a grip portion 129a, an indicating recess 129b, etc. Further, as shown in FIG. 7, a stage number setting knob 120 for setting a three-digit number of knitting stages is provided on the front part of the carriage cover 83, and a display section 12 for displaying the set number of stages.
0a is arranged. Furthermore, a start switch 131 and a stop switch 132 are disposed on the carriage cover 83 to control the drive motor 20 that rotationally drives each of the cams 14 to 16.

Next, the operation of the knitting machine configured as described above will be explained. As shown in FIGS. 7 and 8, the operating member 8
2 is placed in the right movement position, and the indication recess 82c
In a state where corresponds to the rightward arrow of the display symbol 100, the carriage movement direction is set to the right. In this state, the tri-arm intermediate lever 85
and the switching member 4 via the two-armed intermediate lever 87.
4 is placed in the rearward movement position shown in FIG. 3a. Based on the rearward arrangement of the switching member 44, the linking pin 37a of the operating shaft 37 is engaged with the low cam portion 46a of the cam groove 46, as shown in FIG. The follower 41 is placed and held at the moving position of the intermediate cam wheel 1.
5 is engaged with a rightward movement cam 42 on the upper surface thereof.
Then, as shown in FIG. 11, each cam wheel 14 to 1
When the rotation angle of 6 is 0 degrees, as shown in FIG.
The actuating member 38 and the thread actuating arm 3 upon engagement with the
A thread opening 36 is arranged on the right side of the counter needle 27 via the needle 5 .

Furthermore, based on the rear arrangement of the switching member 44,
The reversing actuating lever 98 is placed in one rotational position shown in FIG. 3a, and the slide member 90 is placed in the rightward movement position via the reversing actuating lever 98.

Further, the follower 61 of the feed switching lever 59 is connected to the small diameter portion 6 of the feed switching cam 62 shown in FIG.
2a, and based on the engagement, the right rotating lever 50 is placed in the rotating position shown in FIG. Turn the left rotation lever 5.
1 is placed in the rotational position shown in the figure, and the pair of outer engaging portions 54 are disengaged from the rack 8. Furthermore, by placing both the pivot levers 50 and 51 in the pivot position shown in FIG. 6a, the pin 58
The inner feed dog 55 is placed in a downward moving position through engagement with the elongated hole 57, and its both end engaging portions 56 are engaged with the rack 8.

In addition, based on the right-hand arrangement of the thread port 36, the connecting lever 75 is arranged at the position shown in FIG. 3a,
Due to the biasing force of the spring 81, the inner edge of the intermediate portion of the outer rotating lever 80 is engaged with the locking piece 78, and
The tip of the inner rotary lever 79 engages with the follower 71b of the feed lever 70 from inside by the spring 81, and the feed lever 70 is urged to rotate clockwise in FIG. is engaged with the rightward feeding cam 73 of the feeding cam 72, and the square piece 7
The inner feed dog 55 is urged to move to the right in FIG. 3a (to the left in FIG. 6a) through the engagement between the inner feed dog 1a and the engagement recess 63.

Furthermore, as shown in FIGS. 7 and 8, the needle bed 1
When the automatic reversal state of the carriage 10 is set within the knitting section, as shown in FIG. The movable plate 111 is arranged at the position shown in FIG.
4 is engaged with the upper locking surfaces 113a, 114a,
Each moving body 115 is placed in an upward movement position. Therefore, the lower end of each moving body 115 is connected to each switching body 94,
95, and by the biasing force of the leaf spring 97, the engaging portions 96 of each switching body 94, 95 are arranged at a lower position where they can engage with the butt 2a of the knitting needle 2 in the rest section.

In this state, start switch 1 shown in FIG.
31 is operated and the drive motor 20 shown in FIG. 5 is rotated, the drive bevel gear 21 and the driven bevel gear 2 are rotated.
2. The cam wheels 14 to 16 begin to integrally rotate clockwise in FIG. 5 via the first to third intermediate gears 23 to 25 and the driven gear 15a.

When each of the cam wheels 14 to 16 is rotated from 0 degrees to 30 degrees, the inclined portion 73a of the rightward feeding cam 73 and the follower 71 shown in FIG. 3a and FIG.
The shaft pin 7 of the square piece 71a is in a fixed relationship with the needle bed 1 via the inner feed dog 55 based on the engagement with b.
The feed lever 70 is rotated counterclockwise in FIG. 3a, centering on 1c, and based on this rotation, the carriage 10 is moved to the right in FIG. 3a by one row of knitting needle pitches.

Thereafter, based on the operation of a known pinch card handle plate needle selection device (not shown), a front stitch knitting state is set by the back stitch knitting state by the knitting needles 2 or by cooperation between the knitting needles 2 and the opposing needles 27. For example, the front stitch knitting state is set. When set, the knitting needles 2 are moved back and forth on the needle bed 1 according to the cam shape of the knitting needle drive cam 18, and the opposing needle drive cam 29 and the opposing needle operating cam 30 are moved back and forth on the needle bed 1.
The opposed needle 27 is moved back and forth and rotated according to the cam shape of the right-hand operating cam 42, and the thread opening 36 is moved left and right according to the cam shape of the right-hand operation cam 42.
The front stitch knitting operation is started by the cooperation of the knitting needles 2 and the opposing needles 27. Thereafter, the feed switching lever 59 began to be rotated clockwise in FIG. 3a in accordance with the cam shape of the feed switching cam 62 shown in FIG. 11, and each of the cam wheels 14 to 16 was rotated approximately 270 degrees. At times, each rotary lever 5 is switched via the feed switching lever 59.
0 and 51 are rotated from the position shown in FIG. 6a to the position shown in FIG. An engaging portion 54 of 53 engages with the rack 8. Further, while each of the cam wheels 14 to 16 is rotated up to 270 degrees, the thread head 36 is moved from the left side to the right side of the facing needle 27 shown in FIG. 2 according to the cam shape of the rightward operation cam 42. Thread is supplied to the opposing needle 27. Therefore, at the time when each cam ring 14 to 16 is rotated 270 degrees, the thread opening 36 is connected to the opposing needle 27.
The follower 71b of the feed lever 70 is engaged with the end of one equal radius portion 73b. Based on the rightward arrangement of the thread opening 36, the follower 71b of the feed lever 70 is moved away from the center of each of the cam wheels 14 to 16 by the inner rotary lever 79 in a direction in which it engages with the rightward feed cam 73. is energized to move. After that, each cam wheel 14~
16 is rotated from 270 degrees to 303 degrees, each of the feed teeth 53 and 55 is held in the state shown in FIG. 6b by the feed switching cam 62.

Also, while each of the cam wheels 14 to 16 is rotated from 270 degrees to 303 degrees, the inclined portion 73 of the rightward feeding cam 73
c and the follower 71b, the feed lever 70 is rotated clockwise in FIG. The feed dog 55 is moved from the position shown in FIG. 6c to the right side of FIG. 3a, that is, from the position shown in FIG. 6b to the position shown in FIG. will be moved up to

Thereafter, while each of the cam wheels 14 to 16 is rotated from 303 degrees to 360 degrees, the rotation of the feed lever 70 is based on the engagement between the equal radius portion 73b of the rightward feed cam 73 and the follower 71b. is stopped, the inner feed dog 55 is not moved left or right from the position shown in FIG. 6c. Further, the feed switching lever 59 is rotated according to the cam shape of the feed switching cam 62, and the outer feed dog 53 starts to disengage upward from the rack 8 as shown in FIG. The engaging portion 56 of 55 starts moving downward,
When each cam ring 14-16 has been rotated approximately one revolution, the feed dog 56 is fully engaged with the rack 8 and the outer feed dog 53 is completely disengaged. After that, when the next rotation of each cam wheel 14 to 16 starts,
As mentioned above, the inclined portion 73 of the rightward feeding cam 73
The feed lever 70 is attached to the shaft pin 7 according to the cam shape of a.
1c, and the carriage 10 is again moved to the right in FIG. 3a by one row of knitting needle pitches.

In addition, within the knitting section of needle bed 1, carriage 1
0 is moved to the right, each knitting needle 2
are arranged at the front knitting reference position, the switching bodies 94 and 95 are not engaged with the butt 2a, and as shown in FIG. 1 and held in a position substantially parallel to the top surface.

Now, after the knitting operation in the knitting section is completed, when the carriage 10 is further moved to the right by one row of knitting needle pitches, as shown in FIG. The mating surface 96a collides with the butt 2a of the resting knitting needle 2 (the left end knitting needle 2 of the resting section) which is further to the right of the knitting needle 2 at the right end of the knitting section. Therefore, as shown in FIG. 9a, the rightward movement (leftward movement in FIG. 9a) of the left switching body 95 is stopped. After that, each of the cam wheels 14
16 is rotated a predetermined number of times and a predetermined amount of feed is applied to the carriage 10, as shown in FIG. When it collides with 92a, the rightward movement of the slide member 90 is stopped. Thereafter, when each of the cam wheels 14 to 16 is further rotated once and the carriage 10 is fed in the right direction, the rotation is reversed around the connecting pin 99a on the slide member 90 fixed to the needle bed 1. Since the operating lever 98 is rotated counterclockwise in FIG. 2, the switching member 44 is rotated as shown in FIG. It is moved from the rear position shown in a to the front position shown in FIGS. 2 and 4.

As the switching member 44 moves forward, as is clear from FIG. 3b, the linking pin 3 of the operating shaft 37
7a is separated from the low cam portion 46a of the cam groove 46 and engaged with the high cam portion 46b, so that the operating shaft 3
7, the actuating member 38 is arranged and held at the upper moving position, and the follower 41 is disengaged from the rightward actuating cam 42 and simultaneously engaged with the leftward actuating cam 43.

Further, as the switching member 44 moves forward,
Based on the engagement between the fitting groove 89 and the second arm portion 87c of the two-armed intermediate lever 87 shown in FIG. 8, the intermediate lever 87 is rotated counterclockwise in FIG. The intermediate lever 85 is rotated clockwise in the figure, the operating member 82 is moved to the left, and the indicating recess 82c is opposed to the left-pointing arrow of the display symbol 100 shown in FIG. It is displayed that the direction of movement has been automatically switched from right to left.

Then, with the switching member 44 disposed at the forward position, each of the cam wheels 14 to 16 is continuously operated at 270 degrees.
When rotated to a certain degree, the yarn opening 36 is located to the left of the opposing needle 27, as shown in FIG. 4, after completing its yarn feeding operation. Therefore, based on the urging force of the spring 81, the inner rotating lever 79 is engaged with the locking piece 78, and the outer rotating lever 80 is engaged with the locking piece 78.
engages with the follower 71b of the feed lever 70, and the feed lever 70 is urged to rotate counterclockwise in FIG. When each of the cams 14 to 16 continues to rotate in this state, the follower 71b engages with the inclined portion 74c of the leftward feed cam 74, and the feed lever 70 moves around the shaft 70a according to the shape of the cam. Fourth
The square piece 71 and the feed dog 5 are rotated counterclockwise in the figure.
5 through engagement with the engagement recess 63 of the feed dog 5.
5 is moved to the left and placed in the position shown in FIG. Then, the feed switching lever 59 is rotated in a predetermined direction according to the cam shape of the feed switching cam 62, and at the same time as the outer feed dog 53 is disengaged from the rack 8, the inner feed dog 55 is easily engaged, and then the left Depending on the shape of the inclined portion 74a of the feed cam 74, the feed lever 70 moves to the fourth position around the shaft pin 71c.
It is rotated clockwise in the figure. Therefore, the carriage 10
is moved to the left of one row of knitting needles.

As the carriage 10 moves leftward, the engaging portion 96 of the left switching body 95 engages the knitting needles 2 at the right end of the knitting section.
In order to separate from the rest knitting needle 2 adjacent to the right (the left end knitting needle 2 of the rest section), the left switching body 9 is moved together with the left slide frame 92 based on the biasing force of the spring 93.
5 is moved back toward the center of the carriage.

In this way, the movement and reversal operation of the carriage 10 can be performed automatically, and each cam wheel 14 to
Each time the carriage 16 is rotated, a progressive feed can be applied to the carriage 10 to perform knitting operations in the next stage.

For example, when the carriage 10 is moved to the right on the right side of the knitting section, the right switching body 94 faces the butt 2a of the knitting needle 2 at the left end of the rest section, but when the carriage 10 moves to the right, Accordingly, the inclined surface 96b of the right switching body 94 engages with the butt 2a of the knitting needle 2 in the rest section, and the right switching body 9
4 is rotated upward against the leaf spring 97, and then held at the upper avoidance position as shown in FIG. 9a. After the direction of movement of the carriage 10 is determined from right to left, the butt 2 of the knitting needles 2 in the pause section is
When the right switching body 94 is separated from a, the right switching body 94 is rotated back toward the needle bed 1 based on the biasing force of the leaf spring 97.

In addition, when the knitting section is set wide to create a knitted fabric with a large knitting width and many knitting needles 2 are installed in the knitting preparation position in the front, the right switching body 9
Based on the engagement between the inclined surface 96b of the needle 4 and the butt 2a of the left end knitting needle 2 of the right rest section, the right switching body 94 is further moved to the upper avoidance position shown in FIG. 10 is moved to the right, the inclined surface 96b of the right switching body 94 engages with the upper end of the right avoiding body 6, and then the right switching body 94 is moved as shown in FIG. 9b. It is placed at the upper avoidance position on the right avoidance body 6. Then, when the carriage 10 continues to move to the right, the right switching body 94 passes over the right avoidance body 6, and then the right switching body 94
is rotated back toward the needle bed 1 side and placed in a substantially horizontal position. Thereafter, the moving direction of the carriage 10 changes from right to left based on the engagement surface 96a of the left switching body 95 and the butt 2a of the knitting needle 2 at the right end of the knitting section and the knitting needle 2 in the pause section further to the right. When the carriage 10 is moved to the left after being reversed to
Based on the engagement with the engagement surface 96b of 4, the right switching body 94 is rotated again to the upper avoidance position. Therefore, there is no fear that the movement of the right switching body 94 will be stopped by the right avoidance body 6 after the carriage movement is reversed, and it is possible to prevent the carriage movement direction from being reversed again.

On the other hand, when the carriage 10 moves leftward, the engaging surface 96a of the right switching body 94 engages with the butt 2a of the knitting needle 2 in the resting section further to the left of the knitting needle 2 at the left end of the knitting section (the rightmost knitting needle 2 in the left resting section). When the leftward movement of the right switching body 94 is stopped, the leftward movement of the slide member 90 is stopped, and then, as the carriage 10 continues to move leftward, the reversing operation lever 98 is connected. pin 99a
The switching member 44 is rotated clockwise in FIG. The feed status is automatically set and the feed direction can be reversed from left to right.

Further, when the carriage 10 is moved to the left with the knitting section set to a wide range, the inclined surface 96b of the left switching body 95 engages with the butt 2a of the right end knitting needle 2 in the left resting section and is rotated upward to avoid it. After that, the left switching body 95 is held in the avoidance position based on the engagement with the butt 2a, and after the left switching body 95 overcomes the left avoidance body 7 as the carriage continues moving leftward, the left switching body 95 is based on the biasing force of the leaf spring 97.
It is rotated back to the horizontal position shown in Figure a. Thereafter, when the moving direction of the carriage 10 is reversed from left to right, the left switching body 95 is rotated upward again to avoid it, and in this state, the left switching body 95 moves over the butt 2a of the knitting needle 2 in the left pause section. Therefore, immediately after the carriage movement direction is reversed from left to right, it is possible to prevent the carriage 10 from being reversely moved from right to left again.

In addition, with the movement of the carriage 10 stopped,
When the operating member 120 shown in FIGS. 7 and 8 is moved to the right, the elastic piece 125 becomes elastic due to the engagement between the right inclined surface 126a of the engaging portion 126 of the elastic piece 125 and the pin 127. After being rotated outward against the resistance, the engaging portion 126 is moved from the left side of the pin 127 to the right side, and the elastic piece 12 is moved based on its own elasticity.
5 is rotated back. Further, based on the engagement between the linking hole 124 and the linking piece 119, the movable plate 111 shown in FIGS.
The movable body 115 is moved to the position shown in the figure, and the engaging pieces 116 of the movable body 115 are separated from the upper locking surfaces 113a and 114a of each locking portion 113 and 114, respectively, and are opposed to the lower locking surfaces 113b and 114b. As a result, each movable body 115 is moved downward based on the biasing force of the spring 117, and its lower end engages with the left and right switching bodies 94, 95.
5 resists the spring force of the leaf spring 97, and the 10th
It is rotated to the upper avoidance position shown in the figure. Therefore,
In this state, when the carriage 10 moves leftward or rightward, each switching body 94, 95
The butt 2a of the knitting needle 2 has an engaging surface 96a in the rest area.
, and the carriage 10 is moved only in a preset direction. This carriage 10
If the stop switch 132 shown in FIG. 7 is operated during one-way movement, the rotation of the drive motor 20 is stopped, so the rotation of each cam wheel 14 to 16 can be stopped, and the knitting operation and carriage drive operation can be stopped. can be terminated.

[Effects of the Invention] As detailed above, the present invention is directed to a carriage drive device including a carriage 10, a feed dog 55, a feed lever 70, a leftward feed cam 74, and a rightward feed cam 73. As, the carriage 10
, a left switching body 95, a right switching body 94,
Slide member 90, actuation member 38, leftward and rightward actuation cams 43, 42, interlocking switching member 3
5, 75, 79, and 80. Therefore, when the carriage 10 is moved to either the left or right side end of the knitting section, the left or right switching bodies 95, 94 are moved straight to the idle knitting needle 2 adjacent to the knitting needle 2 at the side end of the knitting section. By engaging, the left or right switching bodies 95, 94 are caused to move relative to the carriage 10, and this relative movement is used as a driving force to move the slide member 90,
Actuation member 38, interlocking switching member 35, 75, 7
9, 80, etc. are driven in conjunction to switch the feed lever 70 from one of the left and right feed cams 74, 73 to the other, thereby automatically reversing the carriage 10. In this case, since the various members are linked together so that they can be interlocked, switching of the feed lever 70 with respect to the left and right feed cams 74 and 73 is performed by forcibly driving the various members by the driving force. This can be done accurately and the automatic reversal movement of the carriage 10 can always be carried out reliably. Moreover, since the switching of the feed lever 70 utilizes the driving force based on the relative movement of the left or right switching bodies 95, 94, there is no need to provide a special driving means for this driving. Furthermore,
While the carriage 10 is moving within the formation section,
Since the left and right switching bodies 95, 94 do not engage with the idle knitting needles 2, the carriage 1 may be accidentally
0 is not reversely moved, and therefore, in relation to the left and right switching bodies 95, 94 and the knitting needles, maintenance of the dimensional system and wear, etc., similar to the conventional one mentioned at the beginning are avoided. has such excellent effects that there is almost no need to consider it a problem.

[Brief explanation of drawings]

Figures 1 to 11 show an embodiment embodying the present invention, in which Figure 1 is a bottom view of the carriage, Figure 2 is a partially enlarged plan view of the knitting machine, and Figure 3 a.
Figure 3 is an enlarged plan view of the main parts when the carriage is moving to the right.
Figure b is also an enlarged side view, Figure 4 is an enlarged plan view of the main part when the carriage moves to the left, Figure 5 is an enlarged plane view showing the drive means, and Figures 6 a to c are enlarged views showing the operating state of the feed dog. 7 is a plan view of the carriage with the cover attached, FIG. 8 is an enlarged plan view of the carriage with the cover removed, FIG. 9a is an enlarged rear view showing drive direction reversing means, etc., and FIG. 9b is 10 is an enlarged rear view showing the operating state of the drive direction reversing means, FIG. 10 is an enlarged rear view, and FIG. 11 is a cam diagram. In the figure, 1 is the needle bed, 2 is the knitting needle, 8 is the rack, and 10
is a carriage, 35 is a thread operating arm, 39 is an operating member, 42 is an operating cam for rightward movement, 43 is an operating cam for leftward movement, 44 is a switching member, 55 is a feed dog, 70 is a feed lever, 73 is a rightward feed. 74 is a leftward feeding cam, 75 is a connecting lever, 79 and 80 are rotating levers, 90 is a sliding member, 94 is a right switching body, 95 is a left switching body, and 98 is a reversing operation lever. .

Claims (1)

[Scope of Claims] 1. A carriage 10 is installed on a needle bed 1 in which a large number of knitting needles 2 are arranged so as to be movable from side to side. 8, a feed dog 55 that is removable from the feed dog 8;
A feed lever 70 that moves the carriage 10 to the left or right by moving left or right while engaged with the rack 8, and a left lever that drives the feed lever 70 left or right. In a carriage drive device including a feeding cam 74 and a rightward feeding cam 73, the carriage 10 is provided with a resting knitting needle on the left side of the carriage 10 and adjacent to the right of the knitting needle 2 at the right end of the knitting section. 2 from the left side, the carriage 1 is locked to the idle knitting needle 2.
0 and engages with the same resting knitting needle 2 from the right side, the resting knitting needle 2
A left switching body 95 that avoids the relative movement from occurring and is provided on the right side of the carriage 10,
When the knitting needle 2 at the left end of the knitting section engages from the right side with the idle knitting needle 2 adjacent to the left, it is locked to the idle knitting needle 2 and moves relative to the carriage 10. a right switching body 94 which avoids the rest of the knitting needles 2 by engaging from the left side and does not cause the relative movement; and a left switching body which is connected to the left and right switching bodies 95, 94 and A slide member 90 that moves in one direction in conjunction with the relative movement of the right switching body 95 and moves in the other direction in conjunction with the relative movement of the right switching body 94;
8, 44, and the slide member 9
The actuating member 38 is placed in two different positions by the movement of one and the other of the two positions, and the actuating member 38 placed in one of the two positions is displaced in one direction, and the actuating member 38 is placed in the other position. Leftward and rightward actuation cams 43 and 42 displace the actuating member 38 in the other direction, and are operatively linked to the actuating member 38 and the feed lever 70 to displace the actuating member 38 in the one direction. Feed lever 7 by displacement
interlocking switching members 35, 75, 79, 80 which act on the leftward feeding cam 74 and cause the feeding lever 70 to act on the rightward feeding cam 73 by displacement of the actuating member 38 in the other direction; A carriage drive device for a knitting machine, characterized by comprising: