JPH0414472Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to the carriage of a knitting machine.

(Problems to be solved by the prior art and the invention) When performing sliding stitch knitting using a conventional knitting machine, the butts 1 of a plurality of knitting needles involved in knitting are arranged in advance in two positions, front and back. After, Figure 4 a-c
As shown in the figure, as the carriage 2 is moved forward, the butt 1 of the rear knitting needle is introduced into the rear non-knitting butt guide path 3, and the butt 1 of the front knitting needle is introduced into the front knitting butt guide path 4. The knitting operation is performed using the knitting needle corresponding to the butt 1 in the knitting butt guide path 4, and when the carriage 2 is operated backward, the knitting needle that was previously introduced into the non-knitting butt guide path 3 is now knitted. is formation butt guide passage 4
The knitting needles are used to perform knitting operations using the knitting needles.

That is, a swinging cam 6 for guiding the bat 1 toward the cam 5 is swingably disposed in the knitting bat guide path 4, and a swing cam 8 for guiding the bat 1 toward the knitting cam 7 is swingably disposed within the knitting bat guide path 4. Always Figure 4a
It is held in the neutral position shown in Fig. 2 by the action of a spring, and is rotatably arranged. As the carriage 2 moves, the swing cam 6 and swing cam 8 move from the position shown in FIG. 4a to the position shown in FIG. The swing cam 6 guides the bat 1 to the cam 5, and the swing cam 8 guides the bat 1 to the knitting cam 7. As the carriage 2 continues to move, as shown in FIG. 4c, when the butt 1 separates from the swing cam 8,
The swing cam 8 is rotated back by the action of a spring.

However, in this conventional carriage 2,
When knitting is performed with the butts of the knitting needles sorted forward and backward at a specific ratio as shown in FIG. 4, the swing cam 8 moves from the position shown by the two-dot chain line in FIG. As a result, the swing cam 8 may interfere with the butt 1 which is about to be guided from the swing cam 6 to the cam 5. In this case, the carriage 2 could no longer be moved, and there was a risk that the butt 1 and swing cam 8 would be damaged.

(Purpose of the invention) This invention was made in order to solve the above problem, and its purpose is to prevent damage to the butt or swing cam by eliminating the risk of hindering carriage movement due to interference with the butt. The object of the present invention is to provide a carriage for a knitting machine that can prevent such problems.

(Means for Solving the Problems) In order to achieve the above object, this invention is provided with a plurality of butt guide passages each capable of guiding the butt of a knitting needle in either the left or right direction. A swinging cam is provided in the passageway and is rotated by engagement with the butt of a knitting needle guided in the passageway, and is always placed in a neutral position of the rotation by the action of a spring. A carriage provided with a pair of left and right cam passages on the left and right sides of the open end thereof, each connected to the specific butt guide passage, and for introducing and guiding the butt of the knitting needle whose course has been changed by the swinging cam. , a resistance imparting member is provided which applies resistance at a substantially neutral position to the swinging cam which rotates back after being disengaged from the butt of the knitting needle, and which prevents rotation of the swinging cam at the substantially neutral position. It is set up.

(Function) Therefore, when the butt of a knitting needle is introduced into a specific butt guide path, the swing cam is rotated by engagement with the butt, and then disengaged from the butt and rotated back, The resistance applying member applies resistance to the swing cam at the substantially neutral position, and rotation of the swing cam is prevented at the substantially neutral position.

Therefore, the swing cam will not be rotated beyond the neutral position to the opposite rotation position, and no interference with the butt will occur.

(Embodiment) Hereinafter, an embodiment embodying this invention will be described in detail with reference to the drawings.

As shown in FIG. 1, a front cam body 12 and a rear cam body 13 are horizontally fixed at a predetermined interval on the lower surface of a base plate 11 of a carriage 10 that is slidable along a needle bed (not shown). There is. The rear cam body 13
In front of the needle is the rear needle selection position A on the needle bed.
Introducing butts 14 of knitting needles selectively arranged in the
A non-knitted butt guide path 15 is formed which allows the needle to pass through almost at the rear needle selection position A.

A pair of left and right knitting cams 16 are provided between the front cam body 12 and the rear cam body 13, and
A knitting cam group 17 is symmetrically arranged between the two knitting cams 16 and includes a plurality of island-shaped fixed guide cams and a plurality of switching cams that can be switched between the solid line and the two-dot chain line positions. When each switching cam in this knitting cam group 17 is switched to the position shown by the solid line in FIG. When switched to the position shown by the two-dot chain line in the figure, knitting butt guide passages 18 and 19 for simultaneous knitting of two colors are formed.

In addition, on both left and right sides of the lower surface of the base plate 11 of the carriage 10, knitting needles are moved to two positions A and B, in cooperation with a handle plate (none of which is shown), based on needle selection information carried on punch cards. A well-known pair of left and right sorting cam mechanisms 20 are provided for sorting the knitting cams, and as the carriage 10 moves, the one on the rear side in the direction of movement operates effectively, passing through the inside of the knitting cam 16 to the outside. The butts 14 of the knitting needles moving in the direction are sorted into the two positions A and B and led out of the carriage 14.

Next, the swing cam located at the center of the lower surface of the carriage 10 and its related configuration will be described. As shown in FIGS. 1 to 3, a support plate 22 is fixed between the base plate 11 and the rear cam body 13 at the center of the lower surface of the base plate 11, and an island-shaped cam is provided at the center of the support plate 22. 23 is fixed, and an island-shaped guide cam 24 is integrally bent and formed at the front part via a pair of connecting parts 25. And these cams 2
3 and 24 constitute a part of the knitting cam group 17. A rotation shaft 23 is provided through the island-shaped guide cam 24, and a swing cam 27 is attached to the lower end of the island-shaped guide cam 24 so as to be integrally rotatable at its base end. A spring 28 is wound around the rotating shaft 26 at its intermediate portion, one end of which is inserted through the rotating shaft 26, and the other end of which is hooked to the connecting portion 25. And this spring 28
As a result, the swing cam 27 is always held at the neutral position of its rotation, and in this held state, it crosses the knitting butt guide path 18 at the rear, as shown by the solid line in FIG.

A resistance imparting member 29 made of a leaf spring is clamped and fixed at its base end between the support plate 22 and the rear cam body 13. This resistance imparting member 29 is
0, and a pair of arm portions 31 protruding from the body portion 30 to both sides, and a positioning piece 32 is provided at the tip of each arm portion 31 to protrude upward. The support plate 22 corresponds to each positioning piece 32.
A pair of square holes 33 are bored in the housing, and each of the positioning pieces 33 is engaged with each square hole 33, whereby the resistance imparting member 29 is positioned in the front, rear, left and right directions.

An engaging piece 34 is integrally provided at the open end of the body part 30 and projects downward, and when the swing cam 27 is placed in the neutral position, the engaging piece 34 is attached with a force stronger than the biasing force of the spring 28. The swing cam 27 is brought into elastic contact with the upper surface of the open end of the swing cam 27, and the engagement piece 34 causes the swing cam 2 to
7 is provided with rotational resistance to prevent its rotation. Further, on the left and right sides of the open end side of the swing cam 27, two sets of swing cams 35 and 36, which constitute each switching cam of the formation cam group 17, are first set.
It is arranged to be able to swing between the position shown by the solid line in the figure and the position shown by the two-dot chain line in the same figure. When the swing cam 35 is placed at the position indicated by the two-dot chain line, a cam passage 37 connecting the knitted butt guide passage 18 and the non-knitted butt guide passage 15 between the island-like cam 23 and the island-like guide cam 24 is provided. is formed, and the swing cam 2
The butt 14 diverted by 7 is introduced into the cam passage 37 thereof. Also,
When the swing cam 35 is placed at the solid line position in FIG. 1, the cam passage 37 is closed. moreover,
Swing cams 38 are provided on both left and right sides of the island-shaped guide cam 24 and are capable of opening and closing the rear knitting butt guide passage 18, and are normally placed in the closed position shown in FIG.

Now, when carrying out slip stitch knitting using the carriage 10 of the knitting machine constructed as described above, first, the knitting cam group 17 is arranged with each switching cam at the position shown by the solid line in FIG. Then, with the knitting needles on the needle bed selected and arranged in advance at two positions A and B in the front and back, when the carriage 10 is slid and moved forward in the direction of the arrow in Fig. 1, the knitting needles at the front needle selection position B are The butt 14 is introduced into the rear knitting butt guide path 18, and the butt of the knitting needle at the rear needle selection position A is introduced into the non-knitting butt guide path 15.

Then, based on the engagement between the butt 14 of the knitting needle introduced into the knitting butt guide passage 18 and the knitting cam 16, the knitting needle is moved to the front flattening position. Thereafter, the swing cam 38 is rotated in the opening direction by engagement with the butt 14, and the butt 14 is introduced between the island-shaped cam 23 and the island-shaped guide cam 24 along the cam 38. As it passes, knitting yarn is supplied to the hook of the knitting needle. At this time, due to the engagement with the butt 14, the swing cam 27 resists the biasing force of the spring 28 and is rotated from the neutral position in the counterclockwise direction in FIGS. 1 and 2. After the butt 14 is disengaged from the swing cam 27, the swing cam 27 is rotated back by the biasing force of the spring 28, but when the swing cam 27 returns to the neutral position, the resistance imparting member 29 is engaged. Since it engages with the piece 34 and rotational resistance is applied through that engagement, it will not be rotated back to a position beyond the neutral position.

Therefore, the tip of the swing cam 27 does not interfere with the butt 14 that is subsequently introduced between the cams 23 and 24, and a smooth movement operation can be performed, unlike a conventional carriage. Therefore, the butt 14 and the swing cam 27 will not be damaged.

As the carriage 10 continues to move, the knitting needle butts 14 in the knitting butt guide path 18 are guided along the swing cam 35 at the solid line position to the right knitting cam 16, and are retreated by the action of the knitting cam 16.
As a result, the knitting needles are retracted to the knockover position. After the butt 14 merges with the butt 14 in the non-knitting butt guide path 15, it is guided to the right sorting cam mechanism 20, and the knitting needles that were previously sorted to the front needle selection position B are moved to the rear needle selection position. Position A
Then, the knitting needles that had been sorted at the rear needle selection position A are sorted again at the front needle selection position B based on the action of the sorting cam mechanism 20, and are then led out from the carriage 10.

Next, when the moving direction of the carriage 10 is reversed and the carriage 10 is moved backward, the butt 14 of the knitting needle located at the front needle selection position B is introduced into the rear knitting butt guide path 18, as in the case of the forward movement. At the same time, the butt 14 of the knitting needle located at the rear needle selection position A
is introduced into the non-knitting butt guide path 15, and after a knitting action is imparted to the knitting needles having the butts 14 passing through the knitting butt guide path 18, they are led out from the carriage 10. In this way, one course of sliding stitch knitting is completed by one reciprocating movement of the carriage 10.

On the other hand, when knitting two colors at the same time, the switching cams 35 and the like of the knitting cam group 17 are switched to the two-dot chain line positions in FIG. 1 (however, the swing cams 36 are placed at the solid line positions). Then, when the carriage 10 is moved in the direction of the arrow in FIG. 1 with the knitting needles being sorted and arranged in two positions A and B in the front and back, the butt 14 of the knitting needle at the rear needle selection position A is placed in the non-knitting butt guide. After being introduced from one side of the passage 15 through the outer surface of the knitting cam 16 into the rear knitting butt guide passage 18, the knitting needle is introduced between the two swinging cams 35 and 36, and the knitting needle at the front needle selection position B is The butt 14 passes through the knitting butt guide passage 19 in front of the island-shaped guide cam 2.
4 and the front cam plate 12, and two types of knitting yarns of different colors are supplied to the hook of each knitting needle at a position slightly beyond the carriage center.

In this case, the movable cam 39 located in the front knitting butt guide passage 19 is moved by engagement with the butt 14 from the position shown by the solid line in FIG. 1 to the position shown by the two-dot chain line in the figure. As a result, the course of the butt 14 is changed so that it heads toward the knitting cam 16 on the right. On the other hand, the swing cam 27 is rotated counterclockwise in FIG. 1 from the neutral position by engagement with the butt 14 introduced between both cams 23 and 24, and
It is engaged with the swing cam 35 at the position indicated by the dotted chain line. Therefore, the course of the butt 14 is changed and guided to the right cam passage 37.

After the butt 14 separates from the swing cam 27, as in the case of the slip stitch knitting,
When the member rotates back to the neutral position, the resistance imparting member 2
Since it engages with the engagement piece 34 of No. 9 and rotation resistance is provided by the engagement, it will not be rotated back to a position beyond the neutral position.

Therefore, the swing cam 27 does not interfere with the butt 14 that is subsequently introduced between the cams 23 and 24, and a smooth movement operation can be performed unlike the conventional carriage. Therefore, bat 14
The swing cam 27 will not be damaged.

After that, the butt 14 of each knitting needle is connected to the right knitting cam 1.
After the stitches are merged near 6 and both are retreated to the knockover position to knit the stitches, the stitches are sorted back and forth based on the action of the right sorting cam mechanism 20, and then taken out from the carriage 10 for one course. Two-color simultaneous knitting is completed.

Note that this invention is not limited to the above embodiment, and for example, instead of the swing cam 35, the base plate 1
From the purpose of this invention, a cam body that can be retracted and retracted is provided on the cam body, and the cam passage 37 is formed by the cam body, and the resistance imparting member 29 is directly fixed to the rear cam body 13 and the carriage 14. It is also possible to arbitrarily change the configuration of each part without departing from the above.

(Effects of the invention) As detailed above, with this invention, there is no risk of the movement of the carriage being hindered due to interference between the tip of the swing cam and the butt, and damage to the butt swing cam can be prevented. It has this excellent effect.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of this invention, in which Figure 1 is a bottom view of the carriage, Figure 2 is a partially enlarged bottom view of the carriage, and Figure 3 is a bottom view of the carriage. FIG. 3 is a partially enlarged sectional view. Figure 4 a~
c is a partial bottom view showing the operating state of a conventional carriage. In the figure, 13 is a rear cam body constituting a passage forming cam, 14 is a butt, 15 is a non-knitted butt guide passage, 18 and 19 are knitted butt guide passages, and 27
A swinging cam, 28 a spring, 29 a resistance imparting member,
37 is a cam passage.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of butt guide passages 15 each capable of guiding the butts 14 of knitting needles in either left or right direction;
18, 19, which is rotated in that particular butt guide passage 18 by engagement with the butt 14 of the knitting needle guided in that passage 18, and which is always in the neutral position of its rotation under the action of a spring 28. A swinging cam 27 is provided on the left and right sides of the open end side of the swinging cam 27, which are connected to the specific butt guide passage 18, respectively, and are arranged by the swinging cam 27 on the left and right sides of the open end side thereof. In the carriage 10 provided with a pair of left and right cam passages 37 for introducing and guiding the changed butt 14 of the knitting needle, the swing cam 27 disengages from the butt 14 of the knitting needle and rotates to return to its almost neutral position. A resistance imparting member 2 which imparts resistance and prevents rotation of the swing cam 27 at its substantially neutral position.
The carriage of the knitting machine is characterized by being equipped with 9. 2 The resistance imparting member 29 is a leaf spring whose base end is fixed to the lower surface of the carriage 10 or to the passage forming cam 13 and whose open end is arranged in a position where it contacts the open end of the swing cam 27. A carriage for a knitting machine as set forth in claim 1 of the utility model registration claim, characterized in that: