JPS641979Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention particularly relates to a carriage for a hand knitting machine equipped with a cam mechanism that can alternately perform two-color simultaneous knitting and transparent stockinette knitting.

[Prior Art] Conventionally, this type of carriage has been provided with a switching cam that is movable back and forth in the center of the carriage between a pair of knitting cams, as shown in Japanese Utility Model Publication No. 48-18843, for example. By switching the arrangement of the switching cam back and forth, there are some designs in which passages corresponding to two-color simultaneous knitting and through-hole stockinette knitting are formed.

In addition, as another example, as shown in Japanese Utility Model Publication No. 51-21162, the distance between the front cam and the rear cam at the center of the carriage between a pair of knitting cams is set relatively large. It has been seen that a non-tuck passage is formed in the front part within the gap, and a tuck passage is formed in the rear part, and the non-tuck passage is used in either the two-color simultaneous knitting knitting or the transparent stockinette knitting. It will be done.

[Problems to be Solved by the Invention] According to the former prior art, the switching cams are arranged back and forth to form passages corresponding to both formations, so that the long-term carriage life is reduced. If the placement position of the switching cam changes in the front-rear direction due to use, each of the passages will change in the front-rear direction. In particular, at the central position of the carriage, one or both of the pair of front and rear thread openings will move. In order to receive knitting yarn supplied from It has been pointed out that this causes inaccurate supply of knitting yarn from each yarn opening to the knitting needles guided through these passages, causing so-called dropped stitches.

Furthermore, according to the latter conventional technique, a tuck passage and a non-tack passage are formed between the front cam and the rear cam to increase the width of the passage. In the case of high-speed knitting, when the knitting needles are introduced backward into the non-tack passage, they may be excessively retreated to the tack passage side behind the non-tack passage due to the inertia of the retreat; As a result, it has been pointed out that although each knitting yarn of a pair of front and rear yarn openings must normally be supplied to the knitting needle at the same time, a dropped stitch phenomenon occurs in which the knitting yarn of the front yarn opening is not supplied to the knitting needle.

[Purpose of the invention] However, the present invention accurately guides the knitting needles at predetermined positions in the front and rear direction relative to the pair of front and rear thread openings in both the two-color simultaneous knitting knitting and the through-hole stockinette knitting. This allows knitting yarn to be reliably supplied from the yarn opening.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention particularly provides a front partition wall that is spaced behind the front rest passage forming wall at the left and right center of the carriage. Rear partition walls are fixedly arranged at intervals behind the walls, and the butts of the knitting needles of the front introduction passage are introduced between the front partition walls and the front resting passage forming wall, and the hooks of the knitting needles are inserted into the front. A front guide passage is formed for supplying the knitting yarn of the yarn opening, and the butt of the knitting needle of the rear introduction passage is introduced between the front partition wall and the rear partition wall, and the butt of the knitting needle of the rear introduction passage is connected to the hook of the knitting needle for knitting of both the front and rear yarn openings. forming an intermediate guide passage for feeding the yarn, on the rear side of the rear partition wall;
A rear guide passage is formed for introducing the butt of the knitting needle in the rear introduction passage at the tuck position and supplying the knitting yarn at the rear yarn opening to the hook of the knitting needle, and the rear introduction passage is provided on both left and right sides of the rear partition wall. The present invention is characterized in that a switching cam is provided which can be switched between a first position for introducing the butt of the knitting needle in the passage into the intermediate guide passage and a second position for introducing the butt of the knitting needle into the rear guide passage.

[Example] Hereinafter, an example embodying the present invention will be described in detail with reference to the accompanying drawings.

1 in the figure is a carriage mounted on the machine's needle bed (not shown) so as to be able to slide from side to side.The knitting cam mechanism A is located at the center of the lower surface of the carriage, and the knitting needles 2 after knitting are completed at both left and right sides. A known needle selection cam mechanism B is provided for sorting the butts into two groups, front and rear. To explain the knitting cam mechanism A, 3 is the front pause passage 4.
5 is a rear rest passage forming wall that partitions and forms a rear rest passage 6;
8 is a pair of left and right cams, 8 is a fixed tact cam,
Reference numeral 9 denotes a pair of left and right rest passage opening/closing cams, 10 a pair of left and right introduction passage opening/closing cams, 11 a pair of left and right reference passage opening/closing cams, 12 a pair of left and right return passage opening/closing cams, 13 a sliding guide cam, and 14 left and right cams. A pair of swing cams 15 move the butts of the knitting needles 2 at the tack position at the front end of the tack cam 8 back a little, and
The auxiliary retracting cam is movable between a retracting position in which the butt is guided toward the inner surface of the knitting cam and a non-retracting position in which the butt is advanced toward the inner surface of the knitting cam without retracting.The above-mentioned cams are known.

Furthermore, a passage forming cam 16 is provided between the front end of each knitting cam 7 and the front resting passage forming wall 3, and is movable in two positions, front and rear. By arranging the passage forming cam 16 at the rear position shown in FIG. 1, the front and rear knitting needles 2 are separated into front and rear by the needle selection cam mechanism B and advanced to the flattening position.
A pair of introduction passages 17 and 18 are formed for introducing and guiding the butts of the knitting cam 7 separately. A push-up introduction passage 19 is formed which guides the butt by further pushing it up at the bellow release position.

In the figure, reference numeral 20 denotes a front partition wall that is fixedly arranged in a horizontal straight line at the left and right center of the carriage 1 behind the front rest passage forming wall 3 with a butt passage interval, and is connected to the front rest passage forming wall 3. In the meantime, the butt of the knitting needle 2 of the front introduction passage 17 is introduced, and the knitting yarn T1 of the front yarn opening 27 described later is introduced into the hook of the knitting needle 2.
A front guide passage 21 is formed for supplying. Reference numeral 22 denotes a horizontally long rear partition wall that is fixedly arranged behind the front partition wall 20 with a butt passage interval, and between it and the front partition wall 20, the butts of the knitting needles 2 of the rear introduction passage 18 are introduced. Attach the front and rear thread openings 27 to the hooks of the knitting needles 2, which will be described later.
An intermediate guide passage 23 is formed for supplying 28 knitting yarns T1 and T2. Further, between the rear partition wall 22 and the tack cam 8, the butt of the knitting needle 2 of the rear introduction passage 18 is introduced at the tack position, and the knitting yarn T2 of the rear yarn opening 28 described later is supplied to the hook of the knitting needle 2. A rear guide passage 24 is formed for this purpose.

In the figure, reference numeral 25 denotes a switching cam rotatably mounted on the left and right sides of the rear partition wall 22, which controls the butt of the knitting needle 2 in the rear introduction passage 18, as shown in FIGS. 2 and 3, respectively. Said intermediate guide passage 2
The knitting needles 2 can be switched between a first position at the rear where the needles 3 are introduced into the guide passage 24 and a second position at the front where the butts of the knitting needles 2 in the passage 18 are introduced into the rear guide passage 24 as shown in FIG. Reference numeral 26 denotes a retreat regulating cam whose base end is pivotally supported at a position corresponding to the knitting cam 7, and guides the butt of the knitting needle 2 in the lateral direction while preventing the butt of the knitting needle 2 which has passed through the rear introduction passage 18 from retreating excessively.

A knitting fabric presser support arm (not shown) is attached to the front side of the carriage 1, and a front yarn opening 27 through which the coloring knitting yarn T1 is inserted is attached to the front side of the left and right center portions of the support arm (not shown).
However, a rear yarn opening 28 through which the knitting yarn T2 for the base yarn is inserted is provided on the rear side.

On the front side of the machine needle bed, a rubber machine needle bed is movably installed between a working position where rubber knitting is possible and a rest position below it, and a rubber knitting carriage is mounted on the rubber machine needle bed so that it can slide left and right. As shown in FIG. 3, the lower surface of the rubber knitting carriage is movably mounted, as shown in FIG. A knitting passage 33 and the like are provided.

This embodiment is configured as described above.

Therefore, in order to perform two-color simultaneous knitting, first place the rubber machine needle bed in the rest position, set the knitting presser arm on the front side of the carriage 1, and knit at each of the front and rear thread openings 27 and 28. The threads T1 and T2 are inserted through the threads, and the cams on the lower surface of the carriage 1 are arranged as shown in FIG.

Therefore, the knitting needles 2 are sorted in advance into two groups: front and rear.
By sliding the carriage 1 on the group, the front knitting needles 2 are introduced into the front guide passage 21 and the front yarn opening 2
The rear knitting needle 2 is introduced into the rear guide passage 24 and knits the stitches of the knitting yarn T2 supplied from the rear yarn opening 28.

In addition, in order to perform the through-hole stockinette knitting, the arrangement of the various cams on the lower surface of the carriage 1 is made as shown in FIG. 2 with respect to the state of the two-color simultaneous knitting.

Therefore, the knitting needles 2 are sorted in advance into two groups: front and rear.
By sliding the carriage 1 on the group, the front knitting needles 2 are introduced into the front guide passage 21 and the front yarn opening 2
The rear knitting needle 2 is introduced into the intermediate guide passage 23 and knits the stitches of the knitting yarns T1 and T2 supplied from both the front yarn opening 27 and the rear yarn opening 28. .

In this case, in particular, the butts of the knitting needles 2 guided in the intermediate guide channel 23 are respectively connected to the fixed front partition wall 2.
0 and the rear partition wall 22, and are guided in an accurately determined position in the front-rear direction, the two knitting yarns T1 and T2 are precisely attached to the hook of the knitting needle 2. is supplied, and there is no dropout.

Furthermore, in order to perform plain knitting, the knitting yarn T1 is inserted only through the rear yarn opening 28, and the cams on the lower surface of the carriage are arranged as shown in FIG. Then,
By sliding the carriage 1 over the two groups of knitting needles arranged in the knitting preparation position, the butts of the knitting needles 2 are all guided to the intermediate guide passage 23 to knit the stitches of the knitting yarn T2 supplied from the rear yarn opening 28. .

Furthermore, in the case of rubber knitting, the rubber knitting machine needle bed is set in advance at the use position, and the rubber knitting carriage and the carriage 1 are connected so that their left and right centers coincide, and a special connecting fitting is used. (not shown)
The knitting yarn is inserted into the thread opening on the connecting fitting, and the cam arrangement of both carriages is as shown in FIG. By sliding both carriages together, the knitting needles of both needle beds receive knitting yarn from the thread opening of the connecting fitting to knit stitches. In this case, the knitting needles 2 on the needle bed of this machine are advanced sufficiently forward to the flattening position by the push-up introduction passage 19 prior to yarn feeding, so that the old stitches on the knitting needles 2 are reliably flattened. In particular, in the case of rubber knitting, it is not possible to use the knitting press as in the case of knitting using only the machine's needle bed, so it is often difficult to knit especially when knitting thick knitting yarns or knitting large stitches. However, in this example, there is no such problem.

[Effects of the invention] As described in detail above, the present invention particularly provides the front rest passage forming wall 3 in the left and right center portions of the carriage.
By fixedly arranging the front partition wall 20 and the rear partition wall 22 at intervals behind the front guide passage 21, the intermediate guide passage 23, and the rear guide passage 2,
4 are fixedly formed, and the knitting needles 2 of the rear introduction passage 18 are formed on both left and right sides of the rear partition wall 22.
Since it is provided with a switching cam 25 that can be switched between two positions so as to introduce the material into either of the intermediate and rear guide passages 23 and 24, it can be used in both two-color simultaneous knitting and through-hole stockinette knitting. In this case, the knitting needle 2 can be accurately guided to a predetermined position in the front and rear direction relative to the pair of front and rear yarn ports 27 and 28, and the knitting yarn can be reliably supplied from the yarn ports 27 and 28 in a stable state. be.

[Brief explanation of drawings]

Figure 1 is a bottom view of the carriage showing a cam arrangement that allows simultaneous two-color knitting, and Figure 2 is a bottom view of the carriage showing a cam arrangement that allows for through-hole stockinette knitting.
FIG. 3 is a bottom view of the carriage showing the cam arrangement that allows flat knitting and rubber knitting. In the figure, 1 is a carriage, 2 is a knitting needle, 3 is a front resting passage forming wall, 5 is a rear resting passage forming wall, 7 is a knitting cam, 15 is an auxiliary retreat cam, 17 is a front introduction passage,
18 is a rear introduction passage, 20 is a front partition wall, 21
22 is a front guide passage, 22 is a rear partition wall, 23 is an intermediate guide passage, 24 is a rear guide passage, 25 is a switching cam, 27 is a front thread, and 28 is a rear thread.

Claims (1)

[Claims for Utility Model Registration] A pair of left and right knitting cams 7 is provided between the front resting passage forming wall 3 and the rear resting passage forming wall 5 on the lower surface of the carriage, and the knitting cams 7 and the front resting passage forming wall 3 are connected to each other. In between, a pair of front and rear introduction passages 17 and 18 are provided in which the butts of the knitting needles 2, which are divided into front and rear sections in advance, are introduced separately at the flattened position, and the butts of the knitting needles 2 in the tuck position are inserted into the inside of each knitting cam 7. An auxiliary retraction cam 15 is provided which can be moved between a retraction position where the butt is slightly retracted and guided to the inner surface of the knitting cam 7, and a non-retraction position where the butt is advanced toward the inner surface of the knitting cam 7 without retracting. In a carriage provided with a pair of front and rear thread openings 27 and 28 at the front side of the left and right center of the carriage, a front partition wall 20 is provided at a distance behind the front rest passage forming wall 3 at the left and right center of the carriage. , a rear partition wall 22 is fixedly arranged at a distance behind the front partition wall 20,
The butt of the knitting needle 2 of the front introduction passage 17 is introduced between the front partition wall 20 and the front pause passage forming wall 3, and the knitting yarn of the front yarn opening 27 is supplied to the hook of the knitting needle 2. Guide passage 21
The butt of the knitting needle 2 of the rear introduction passage 18 is introduced between the front partition wall 20 and the rear partition wall 22, and the knitting yarns of both the front and rear yarn openings 27 and 28 are inserted into the hook of the knitting needle 2. An intermediate guide passage 23 is formed for feeding the rear partition wall 22.
A rear guide passage 24 is formed on the rear side for introducing the butt of the knitting needle 2 of the rear introduction passage 18 at the tuck position and supplying the knitting yarn of the rear yarn opening 28 to the hook of the knitting needle 2; On both left and right sides of the rear partition wall 22, switchable positions are arranged between a first position where all the butts of the knitting needles 2 in the rear introduction passage 18 are introduced into the intermediate guide passage 23 and a second position where all the butts are introduced into the rear guide passage 24. A carriage for a hand knitting machine characterized by being provided with a switching cam 25.