JPS6239112Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to a hand knitting machine in which a carriage mounted on a needle bed is provided with a yarn opening device for changing knitting yarn.

Prior Art In order to be able to perform plated knitting in this type of hand knitting machine, it would be sufficient to install a dedicated plated thread opening device on the carriage, in addition to the knitting thread exchange thread opening device. Providing as many as two clue devices within the limited space of the carriage may lead to an increase in the size of the carriage and a complicated mechanism.

Purpose of the invention The purpose of this invention is to configure the knitting yarn exchange yarn opening device to have a plating function in addition to its original function, so that it can perform plating without increasing the size and complexity of the carriage. The purpose is to make it possible.

Embodiment An embodiment of this invention in a double-panel hand knitting machine will be described below with reference to the drawings.

A main needle bed 1 of a hand knitting machine is provided with a large number of alternating rows of comb teeth 2 and main knitting needles 3 (shown in FIGS. 7 and 8) along its longitudinal direction. A sub-needle bed 4, which is arranged at an angle of approximately 90 degrees at the lower front side of the main needle bed 1, has comb teeth 2 of the main needle bed 1 and main knitting needles 3 and their rows extending in the longitudinal direction. A large number of rows of comb teeth 5 and sub-knitting needles 6 (shown in FIG. 3) facing each other with half pitches are provided.
As shown in FIG. 1, a connecting plate 8 having a substantially L-shaped cross section is fixed to the left and right sides of the main needle bed 1 by fixing screws 7, and the sub needle bed 4 is supported on the hanging part 9 of the connecting plate 8. .

A main carriage 10 as a carriage for a hand knitting machine is mounted on the main needle bed 1 so as to be movable left and right, and well-known knitting cams (not shown) are arranged symmetrically on the lower surface thereof. A subcarriage 11 serving as a carriage for a rubber knitting machine is mounted on the subneedle bed 4 so as to be slidable from side to side, and well-known knitting cams (not shown) are arranged symmetrically on the lower surface thereof. The specific construction of the cams of the main carriage 10 and the sub-carriage 11 is described in detail in Japanese Utility Model Application Publication No. 10948/1983, filed by the same applicant as this application.

As shown by chain lines in FIG. 2, this cam arrangement allows the normal knitting locus G of the hooks of the main knitting needles 3 as the main carriage 10 moves, the knitting locus F of the needle selection position, and the knitting locus F for the slip stitch knitting. The resting needle trajectory H of
A pre-pause trajectory K and a tack formation trajectory J are formed. These trajectories are the trajectories of the hooks of the main knitting needles 3 passing through the normal knitting path on the main carriage 10, the knitting path at the front needle selection position, the needle rest path for slip stitch knitting, the front rest path, and the tuck knitting path.

As shown in FIG. 1, the main and auxiliary carriages 1
Between the carriages 10 and 11 is interposed a connecting metal fitting 21 for connecting the two carriages 10 and 11, the connecting metal fitting 21 being formed by bending a flat plate so as to have a generally L-shaped cross section, and as shown in Figs. 2 and 4, the connecting metal fitting 21 is detachably fixed to the front end of the main carriage 10 by a pair of left and right fitting grooves 22 at its rear end horizontal portion and a fastening screw 23 which fits into the fitting grooves and is screwed into the main carriage 10. A long opening groove 24 is provided in the middle of the connecting metal fitting 21 in the left-right direction, with the left side (the right side in Fig. 2) opening.
At the center of the rear edge of the 4, a rear thread introduction port 40 is provided.
A V-shaped notched recess 20 is formed in the recess 20 .

Further, as shown in FIGS. 3 and 4, a downwardly opening groove 25 is formed at the center of the front hanging end of the connecting fitting 21, and the left and right sides of the groove 25 are formed as the groove 25 moves away from the groove 25. A slope 26 is provided which gradually slopes upward. Further, the position of the connecting piece 29 can be adjusted in the left-right direction by a pair of left and right screws 27 and a left-right long adjustment hole 28 on the rear surface of the hanging part of the connecting fitting 21 (to prevent left-right misalignment of both carriages 10, 11). adjustable), and the groove 2 is fixed to the groove 25 in a portion corresponding to the groove 25.
A downwardly opening connecting groove 30 formed with a left-right width slightly smaller than 5 is provided, and a protruding piece 31 that protrudes upward from the opening groove 24 is provided in the upper part thereof.

As shown in FIG. 3, a substantially L-shaped connecting plate 32 is pivotally attached to the upper surface of the sub-carriage 11, and a connecting pin 3 into which the connecting groove 30 can be fitted is attached to one end of the connecting plate 32.
3, and the connecting pin 33 is provided with a connecting holding portion 33a having a slightly larger diameter that engages with the rear peripheral edge of the connecting groove 30. The spring 34 normally acts on the connecting plate 32 so that the connecting pin 33 fits into the connecting groove 30.

Then, when both carriages 10 and 11 are slid relative to each other, after the connecting plate 32 once rotates in a direction that resists the action of the spring 34, the connecting pin 33 matches the connecting groove 30 of the connecting piece 29. Then, the two carriages 10, 11 are automatically fitted together by the spring 34, and the two carriages 10, 11 are connected. Conversely, in order to separate, rotate the connecting plate 32 in a direction against the spring 34 and insert the connecting pin 33 into the connecting groove 3.
All you have to do is escape from 0.

As shown in FIGS. 4 and 5, a yarn opening 42 for knitting yarn replacement is fixed to the lower surface of the left and right center of the upper horizontal portion 41 of the connecting fitting 21. As shown in FIGS. A knitting yarn catching piece 4 protrudes above the opening groove 24 and toward the closed end from the center of the lower end of the drooping part of the knitting yarn exchange yarn opening 42.
3 and a knitting yarn guide piece 44 protruding below and toward the opening side of the opening groove 24 are bent so as to intersect with each other at their base ends, and both pieces 4
A yarn opening portion 45 is formed in a portion surrounded by 3 and 44, through which the surface yarn T1 for plated knitting and the knitting yarn for normal knitting are inserted. Further, a notch recess 20 of the connecting fitting 21 is provided at the upper end of this knitting yarn exchange yarn opening 42.
An introduction hole 39 is transparently provided so as to correspond to the above.

A latch opening holding plate 46 is disposed on the rear side of this knitting yarn exchange yarn opening 42. That is, a pair of left and right spacing protrusions 48 having screw holes 47 are formed on the front surface of the latch opening holding plate 46, and are inserted through a pair of left and right small holes 49 provided transparently in the hanging portion of the knitting yarn exchange yarn opening 42. By screwing the screws 50 into both screw holes 47, the thread opening 42 for knitting yarn replacement is opened.
A latch opening holding plate 46 is fixed to the latch opening holding plate 46. Therefore, as shown in FIGS. 2 and 6, there is a gap between the rear surface of the knitting yarn exchange thread opening 42 and the front surface of the latch opening holding plate 46, which is large enough to allow the back thread T2 for plate knitting to be inserted. A gap 51 is formed.

An introduction recess 52 is cut out in the center of the upper edge of the latch opening holding plate 46, and as shown in FIG. Introduction hole 3
9 and a back thread introduction port 40 into which the back thread T2 is introduced.
is configured. In addition, a pair of left and right guide pins 53 are installed on the front surface of the latch opening holding plate 46 at diagonally lower left and right positions of the introduction recess 52, and a pair of guide pins 53 are installed on the left and right sides of the latch opening holding plate 46. A diagonal connecting portion 54 is formed by bending. Furthermore, a guide recess 55 serving as a back thread guide is cut out on the lower edge of both connecting parts 54 on the side of the bending part. And the fifth
As shown in FIG. 6, the back thread introduction port 40
The back yarn T2 introduced from
The yarn is fed from a position behind the front yarn T1 supplied from the knitting yarn exchange yarn opening 42 with respect to the direction of carriage movement. Therefore, there is a vertical difference between the back thread T2 and the front thread T1 that advance toward the main knitting needles 3, which is necessary for plate knitting.

On the other hand, a pair of left and right latch control plates 56 are fixed to the lower surface of the upper horizontal portion 41 of the connecting fitting 21 on both the left and right sides of the latch opening holding plate 46. A magnet 58 for erecting the latch of the main knitting needles 3 is fixed to the upper surface of a lower flat part 57 which is bent on the lower side of the latch control plate 56 and arranged close to the hook of the main knitting needles 3. In addition, as shown in FIG. 2, inner and outer folding edges 59 and 60 are formed on both sides of this lower plane part 57 to fold down the opened latch of the main knitting needle 3 in the front rest locus K, and furthermore, on the inner side, inner and outer folding edges 59 and 60 are formed. Knitting trajectories G and F at the normal and forward needle selection positions
Latch opening piece 6 for raising the latch of the main knitting needle 3
1 is bent and formed. This latch opening piece 61 is connected to both connecting portions 54 of the latch opening holding plate 46 in an overlapping state. The latch opening holding plate 46 takes over the standing state of the latch raised by the latch opening piece 61 and holds it up to the position of the yarn opening portion 45 of the knitting yarn exchange yarn opening 42. Note that the magnet 58 and the latch opening/closing piece 6
A groove-shaped latch opening allowing recess 62 is formed between the latch opening and the latch opening.

Further, a lower flat portion 57 of this latch control plate 56
A needle presser portion 63 is bent downwardly on the inside of the needle presser portion 63, and the needle presser portion 63 is used to guide the main stitches of the knitting trajectories G and F at the normal and forward needle selection positions, which are advanced by the back surface of the knitting cam of the main carriage 10. The hook of the needle 3 is arranged so as to be close to the front upper surface of the main knitting needle 3 before reaching the latch opening piece 61. Then, the hooks of the main knitting needles 3 are suddenly lifted upward due to knitting vibration, or as the sub-knitting needles 6 on the side of the sub-needle bed 4 are raised by the knitting cam, the hooks of the main knitting needles 3 are lifted through the knitting stitches. When combing, the hook of the main knitting needle 3 is prevented from rising and the hook is surely prevented from abutting against the lower edge of the latch opening piece 61.

As shown in Figs. 2 and 4, a pair of latch operating brushes 64 are fixed to the rear side of each magnet 58 of both latch control plates 56. The latch operating brushes 64 are arranged so that the hooks of the main knitting needles 3 on the knitting trajectories G and F of the normal and forward needle selection positions advanced by the back surface of the knitting cam of the main carriage 10 are engaged with the latch control plates 56.
The latch is operated in a direction to close or open the latch just before it is about to collide with the rear edge of the lower flat surface portion 57 of the needle 44, thereby preventing the collision from occurring. A brush 65 is fixed to the rear of the latch opening holding plate 46 so as to be parallel to both latch operating brushes 64, and is intended to open the latch of the auxiliary knitting needle 6 which is advanced by the knitting cam when knitting rib knitting or the like.

Further, a yarn guide piece 66 is fixed to the front surface of the hanging part of the knitting yarn exchange yarn opening 42, and a protrusion 67 formed at the lower end of the yarn guide piece 66 is connected to the connecting part 5 of the latch opening holding plate 46.
It is fitted into a fitting hole 68 provided transparently in 4. This thread guide piece 66 is connected to the front thread T1 with respect to the thread opening portion 45.
When replacing or replacing the top yarn T1, etc., the front yarn T1 or the like is connected to the base end bending angle of the knitting yarn catching piece 43 of the knitting yarn exchange yarn opening 42, the latch opening piece 61, or the connecting portion 54.
This is to route the vehicle through the front so that it does not get caught.

Furthermore, a pair of left and right magnets 70 are fixed to the lower surface of a mounting plate 69 fixed to the rear lower surface of the connecting fitting 21, and are used to latch the main knitting needles 3 advanced along the tuck knitting trajectory J during tack knitting by the main carriage 10. Stand up and open your mouth. And this mounting plate 6
A regulating protrusion 71 is bent at the center of the front edge of 9 and protrudes upward through the connecting fitting 21, so as to cover the front surface of the simultaneous knitting button (not shown).
It is regulated that this simultaneous knitting button cannot be pressed during various knitting operations using the connecting fitting 21.

As shown in FIG. 3, a horizontally elongated magnet 72 is fixed to the rear surface of the upper center of the sub carriage 11.
This magnet 72 causes the latches of the sub-knitting needles 6 advanced through the tuck-knitting path of the sub-carriage 11 to rise and open during tuck-knitting by the sub-carriage 11. Further, circular magnets 73 are fixed to the sub carriage 11 on both the left and right outer sides of this elongated magnet 72,
The latches of the sub-knitting needles 6 which are introduced or led out into the knitting path of the sub-carriage 11 (the locus of the hook of the sub-knitting needles 6 is indicated by M in FIG. 3) are erected.

Therefore, in order to make normal rubber knitting using this double-disc type hand knitting machine, the thread opening part 4 of the knitting yarn exchange thread opening 42 must be
The knitting yarn may be inserted through the knitting yarn 5 and slid on both carriages 10, 11, and the stitches are formed by a known method. In addition, when using this hand knitting machine to perform rubber knitting of the plated stitch, the front thread T1 for the plated stitch is inserted into the thread opening part 45 of the knitting yarn exchange thread opening 42, and the The back thread T2 is inserted into the back thread inlet 40.
The guide pin 51 may be inserted into the gap 51, and as the carriage advances, it may be hooked onto the guide pin 53 on the rear side in the direction of movement, and then spanned over the guide recess 55.
By doing this, as shown in FIG.
and back yarn T2 are separated from each other in the front and back, and each knitting needle 3, 6 is located below the lower end of the yarn opening section 45 and above the guide recess 55, so that both yarns T2 are always separated from each other.
1 and T2 are supplied to each knitting needle 3 and 6 with a vertical difference.

When both carriages 10 and 11 are slid left and right in this state, the back thread T2 moves within the gap 51 at each turning point and is wrapped around the guide pin 53 and guide recess 55 on the opposite side. Therefore, no matter whether the knitting direction is left or right, the back thread T2 is always moved from the rear position to the knitting needles 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, etc. 6, rubber knitting of plated thread knitting can be performed.

Next, the configuration of the knitting yarn exchange device 112 will be explained based on FIGS. 7 and 8.

As shown in FIG. 7, a support arm 101 is removably fixed to one side of the main needle bed 1 (on the opening side of the opening groove 24 of the connecting fitting 21) by an appropriate fixing means, and its open end The portion 101a is disposed at a front portion substantially corresponding to the one side portion of the main needle bed 1 and above the main needle bed 1.

A substantially box-shaped frame 102 is attached to the upper surface of the open end 101a of the support arm 101 by suitable fixing means.
is detachably supported, and the upper rear edge thereof has four U-shaped grooves 103 and a projecting piece 1 forming the grooves 103.
04 are formed alternately.

The four knitting yarn restraining bodies 105A to 105D are respectively supported by the frame body 102 at positions corresponding to the respective U-shaped grooves 103 so as to be movable back and forth, and push buttons 106A to 105D are respectively provided on the front side thereof. 106D, and knitting yarn restraining portions 107A to 107D that are open toward the center of the main needle bed 1 are formed on each rear side. The respective knitting yarn restraining bodies 105A to 105D have their respective knitting yarn restraining portions 107A to 107D connected to the U-shaped groove 103.
A front restraining position where the knitting yarns TA to TD are restrained correspondingly to
It is movably held by an appropriate holding device in the rear non-retaining position that allows insertion and removal of the This is automatically done by pushing it into the restraining position. Further, when the knitting yarn restraining bodies 105A to 105D are placed in the non-retaining position, the knitting yarn restraining parts 107A to 107D are located above the knitting yarn retaining parts 107A to 107D, which substantially correspond to the moving path of the yarn opening part 45 of the knitting yarn exchange yarn opening 42. It is now located in

The knitting yarn guide rod 108 is fixed at its base end to the lower surface of the frame 102, and its open end is connected to the frame 1.
02 with a required interval between the main needle bed 1
The knitting yarn retaining portion 107A-1
It guides the insertion and removal of knitting yarns TA to TD into and from 07D.

Auxiliary locking member 1 composed of a single flat plate
09 is fixed to the lower surface of the frame 102 by a pair of screws 110 at its base end, and at its rear side there is a hole between the knitting yarn restraining parts 107A to 107D and the knitting yarn exchange thread opening 42. Five substantially sawtooth-shaped auxiliary locking portions 111A to 111E are formed which project horizontally rearward at a height of . Of these, the auxiliary locking portion 111A is the knitting stopper 105A.
It is used to lock the knitting yarn TA held in the knitting yarn holding part 107A, hereinafter referred to as the auxiliary holding part 111B.
The auxiliary locking portion 11 corresponds to the knitting yarn restraining portion 107B.
1C corresponds to the knitting yarn restraining part 107C, and the auxiliary locking part 111D corresponds to the knitting yarn restraining part 107D, and each of the auxiliary locking parts 111A to 111D corresponds to the knitting yarn restraining part 107C. Knitting yarn stopper 1
Knitting yarn restraining parts 107A to 107 of 05A to 105D
It is shifted by a required distance from D to the side opposite to the center of the main needle bed 1 (it may also be positioned almost directly below). In addition, the remaining auxiliary locking portion 111E is
In the event that the holding knitting yarn TD of the knitting yarn holding part 107D comes off from the corresponding auxiliary holding part 111D, it has the effect of hollowing and hooking it. In this sense, the retaining knitting yarns TA~ of the knitting yarn retaining portions 107A~107C
It can also be said that the TC is hollowed and hooked by the auxiliary locking parts 111B to 111D, respectively. In this case, each auxiliary locking portion 111
B to 111E are each knitting yarn restraining part 107A to 107D
It is located almost directly below and has a corresponding relationship.

By the way, when changing the knitting yarn using the knitting yarn changing device configured as described above, for example, as shown in FIG.
Both carriages 10 and 11 are inserted into the knitting yarn stopper 105 to perform rubber knitting, etc.
When the knitting yarn retaining portion 10 is slid until it crosses the positions A to 105D to the opposite side of the active knitting needle section (it is sufficient to cross at least the knitting yarn exchange yarn opening 42), the knitting yarn stopper 10
After the knitting yarns TA to TC held in threads 7A to 107C are introduced into the opening groove 24 of the connecting fitting 21, they are caught by the knitting yarn guide piece 44 of the knitting yarn replacement yarn opening 42 and moved to the yarn opening section 45 side. Moreover, each of them is laid down correspondingly above the corresponding auxiliary locking part 111A to 111C. On the other hand, the yarn opening 42 for knitting yarn replacement
The knitting yarn TD inserted into the knitting yarn restraining portion 107 of the knitting yarn restraining body 105D is pushed into the non-retaining position.
Caught on D.

In this state, in order to exchange the knitting yarn, one of the knitting yarn restraining bodies 105A to 105C is pushed into the non-retaining position, and any of the knitting yarns TA to TC held therein is placed in the non-retaining position. do. This knitting yarn stopper 10
The knitting yarn restraining body 105 is pushed by 5A to 105C.
D automatically returns to the holding position and holds the knitting yarn TD. Then, when both carriages 10 and 11 are returned to the working knitting needle section side and slid, one of the knitting yarns TA to TC arranged at the non-retaining position is moved to the knitting yarn catching piece of the knitting yarn exchange yarn opening 42. 43 and inserted into the yarn opening hole 45, the corresponding knitting yarn restraining portion 107A~
107C to the outside, while the remaining hold knitting yarns escape from the opening groove 24 to the outside.

In addition, as shown in Fig. 8, if the knitting yarn is not replaced, the knitting yarn TD will be removed from the knitting yarn stopper 1.
The yarn opening 42 for knitting yarn exchange is not affected by the restraining action of 05D.
The thread remains inserted through the thread opening 45.

In this way, normal knitting such as colored rubber knitting can be performed while changing knitting yarns of different colors etc. using the knitting yarn exchange device 112 as appropriate. The specific structure and operation of these knitting yarn exchange devices 112 and the like are explained in the above-mentioned Japanese Utility Model Publication No. 10948/1983 or Japanese Utility Model Application No. 19058/1989.

When performing rubber knitting of the above-mentioned plating stitch from this colored rubber knitting, the back thread T2 for the plating knitting is transferred to the knitting thread exchange yarn opening 4 as described above.
The latch opening retaining plate 46 is inserted into the gap 51 provided between the rear surface of the latch opening retaining plate 46 and the front surface of the latch opening retaining plate 46. in this case,
The hand knitting machine of this embodiment has a yarn opening for the back yarn of plating (that is, a gap 51) on the back side of the yarn exchange yarn opening 42.
Since these are integrally formed, there is no need to provide separate thread opening devices exclusively for the front thread T1 and the back thread T2, and there is no risk that the carriage will become large or the structure thereof becomes complicated. Also,
This embodiment of the hand knitting machine uses the knitting yarn exchange device even in rubber knitting of plated stitches as described above.
Since the front thread T1 can be replaced with a knitting thread of a desired color, rubber knitting of plated thread stitches that can be colored can be performed very easily.

Note that this invention is not limited to the double-disc type hand knitting machine exemplified in the above embodiment, but can also be applied to a single-disc type hand knitting machine capable of plate stitching.

Effects As detailed above, this device forms a gap large enough to allow the back thread for plate knitting to be inserted between the rear surface of the knitting yarn exchange yarn opening and the front surface of the latch opening holding plate, and By providing a back yarn guide part on a part of the front surface of the holding plate that feeds the back yarn guided through the gap from a position behind the front yarn supplied from the knitting yarn exchange yarn opening in the carriage movement direction, Plate knitting can be performed without providing a dedicated thread opening for plating, it is possible to avoid increasing the size and complexity of the carriage, and it is possible to easily switch between normal knitting and plating. It shows excellent results.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a hand knitting machine embodying this idea, Fig. 2 is a bottom view showing the connecting fittings on the main carriage side, and Fig. 3 is a bottom view showing the connecting fittings on the sub-carriage side. Figure 4 is an exploded perspective view of the connecting fittings, Figure 5
The figure is an enlarged front view showing the yarn opening device for knitting yarn exchange.
The drawings are a sectional view taken along the - line in FIG. 5, FIG. 7 is a top view showing the knitting yarn exchange device, and FIG. 8 is a top view showing the knitting yarn change device when no knitting yarn exchange is performed. Main needle bed 1, main knitting needle 3, sub-needle bed 4, sub-knitting needle 6, main carriage 10, sub-carriage 11, knitting yarn exchange thread port 42, latch opening holding plate 46, gap 51, guide recess as back thread guide section 55, knitting yarn exchange device 11
2. Knitting yarns TA to TD, front yarn T1, back yarn T2.

Claims (1)

[Scope of claims for utility model registration] Carriages 10 and 11 mounted on needle beds 1 and 4
, a knitting yarn exchange yarn opening 42 that captures a knitting yarn selected from among a plurality of knitting yarns TA to TD in cooperation with the knitting yarn exchange device 112 of the needle beds 1 and 4; A latch opening holding plate 46 is provided on the rear side of the knitting yarn exchange yarn opening 42 to hold the latch of the knitting needle 3 fed from the knitting yarn exchange yarn opening 42 in an open state, and a latch opening holding plate 46 is provided on the rear side of the knitting yarn exchange yarn opening 42 to hold the latch of the knitting needle 3 in an open state. A back thread T for plating is inserted between the front side of the opening holding plate 46.
A gap 51 is formed that allows the thread T2 to be inserted through the latch opening holding plate 46, and a back thread T2 guided through the gap 51 is formed on a part of the front surface of the latch opening holding plate 46.
, the front yarn T1 supplied from the knitting yarn replacement yarn opening 42
A knitting yarn exchange yarn opening device capable of plated yarn knitting of a hand knitting machine, characterized in that it is provided with a back yarn guide section 55 that feeds the yarn from a rear position in the carriage movement direction.