JPS6336064Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention has a carriage installed in the needle bed in the direction in which the knitting needles are arranged, and the knitting needles supplied with knitting yarn are moved over the knitting needles from the flat pull-out position one by one. A hand equipped with a knitting needle actuating body for retracting the knitting needle to a position to knit a stitch, and a regulating cam for guiding the butt by regulating the advancement of the butt of the knitting needle that has been moved back to the left and right outer side by the knitting needle actuating body. Regarding knitting machines.

(Prior art) In this type of hand knitting machine, when the knitting needles are retreated to a predetermined stitch forming position by the knitting needle operating body, the knitting needles are prevented from returning due to the tension of the knitting yarn that engages with the hooks of the knitting needles. Various measures have been taken in the past.

In the hand knitting machine disclosed in JP-A No. 57-11255, regulating members for regulating the forward movement of the butts of the knitting needles that have reached the knock-over position are provided on both sides of the backward path of the knitting needles, and between the regulating member bodies on both sides. A locking member is provided with a triangular protrusion 44 having an inclined surface projecting downward from the retreating passage. As the knitting needle is retracted to the knockover position by the knitting needle actuating body, the upper end of the butt engages with the slope of the triangular protrusion, and as a result, the protrusion temporarily retracts upward and then returns, and during that time When the butt reaches the knockover position, the protrusion engages with the front surface of the butt to lock it in that position. However, this arrangement requires special protrusions and locking members in addition to the regulating member, which has the disadvantage of complicating the structure and increasing costs.

In addition, in the hand knitting machine disclosed in Japanese Patent Application Laid-open No. 59-76953,
The engaging part of the knitting needle operating body that engages with the butt of the knitting needle is
It is formed into a triangular protrusion with slopes on both sides,
When the knitting needle operating body engages with the butt of the knitting needle at the top of its triangular projection and moves the knitting needle backward along the guide groove, the butt of the knitting needle regulates the knock-over position of the gauge cams on both sides of the guide groove. Located slightly behind the lateral edge. Then, as the carriage moves, the butt of the knitting needle moves slightly forward along the slope of the engaging portion of the knitting needle operating body and exits the carriage while being guided by the side edge of the gauge cam. in this case,
In order to prevent the butt of the knitting needle from advancing due to the tension of the knitting yarn and engaging with the corner of the gauge cam that forms the guide groove, the knitting needle is moved back from the knock-over position more than necessary, so that the knitted stitches are made more than necessary. There is a drawback that it tends to become large.

(Purpose of the invention) Therefore, the purpose of the invention is to eliminate the above-mentioned drawbacks, reliably prevent the advance of the knitting needles at the knock-over position, obtain a stable knitted stitch, and provide a simple and economical structure. An object of the present invention is to provide a hand knitting machine equipped with a forward movement regulating means.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

A carriage 3 is disposed on a needle bed 2 in which a large number of knitting needles 1 (FIG. 3) are arranged side by side so as to be movable left and right in a direction perpendicular to the knitting needles 1. Each knitting needle 1 is attached to a hook 1 as shown in Fig. 3.
a, a bellow 1b, and a butt 1c, and is movable in the front-back direction.

The carriage 3 consists of a front carriage part 3a and a rear carriage part 3b fixed to the lower side of the front part 3a (FIG. 3). The lower surface of the rear part 3b of the carriage has a first
As shown in the figure, a front cam body 4 and a rear cam body 5 are arranged at a predetermined interval, and a horizontal guide edge 4a is formed in the center of the front cam body 4, and both sides of this horizontal cam are inclined. Retracting cams 4b, 4c and horizontal guide edges 4d, 4e following the retracting cams are formed. The rear cam body 5 is formed with opposing forward cams 5a and 5b that are inclined. Side cam bodies 6a and 6b are arranged on both sides of the rear cam body 5, respectively. Further, between the outermost guide parts 4f, 4g of the front cam body 4 and the side cam bodies 6a, 6b, one-way guide cams 7a, 7b, which are rotatable about vertical axes, are biased by springs. Being done,
It is located in line with the forward cams 5a and 5b of the rear cam body 5. As is clear from FIG. 2, the two elongated holes 9a, 9b of the movable plate 8 fit into the bolts 10a, 10b fixed to the rear part 3b of the carriage, so that the movable plate 8 can be moved back and forth. It is provided so that it can be moved in the direction.

In FIGS. 2 and 3, the movable plate 8 on the upper side of the carriage has a rotating shaft 11 located between the front cam body 4 and the rear cam body 5 and whose axis is perpendicular to the longitudinal centerline of the carriage 3. The rotating body 13 is rotatably mounted by a bracket 12, and has a rotating shaft 11 fixed thereto. Since the rotating body 13 is attached to a movable plate, it is movable in the front-rear direction from the minimum stitch adjustment position to the maximum stitch adjustment position shown in FIG.
As shown in FIG.
It is positioned so that it can engage with the butt 1c of the upper knitting needle 1.

Furthermore, the guide cam 14 is attached to the movable plate 8 so that its horizontal edge 14c overlaps the horizontal edge 4a of the front cam body 4 at the minimum stitch adjustment position (the position indicated by the solid line in FIG. 3 and the dotted line in FIG. 1). It is being Therefore, the guide cam 14 can be moved from the position indicated by the dotted line in FIG. 1 to the position indicated by the imaginary line in FIG. 1 while maintaining a predetermined relative position with respect to the rotating body 13. In this way, when adjusting the stitch size, the guiding cam and rotating body move together, so
At any adjustment position, the butt of the knitting needle can always be reliably caught by the knitting needle operating piece of the rotating body, and the knitting needle can be moved back.

Furthermore, as can be seen from FIGS. 1 and 3, the movable plate 8 has a forward movement regulating cam body 15 attached to the lower surface of the carriage 3 in front of the rear cam body 5 and behind the rotary body 13. Regulating cams 15a and 15b extending downward from the body 15 are disposed on both sides of the rotary body 13, and according to the present invention, the inner ends of each of the cams are positioned front and rear at a position corresponding to the lower side of the outer side of the radially extending knitting needle actuating body 13a. Projects perpendicular to the direction. These forward restriction cams 15a, 1
5b is a knitting needle operating body 13a of the rotating body 13;
From the predetermined stitch forming position where the knitting needle 1, which was engaged with and rapidly retreated, is separated from the knitting needle actuating body 13a,
This is provided to prevent the knitting needle 1 from returning due to the tension of the knitting yarn hung on the hook 1a of the knitting needle 1. In particular, in the present invention, the regulation cam 15a,
The inner end of the knitting needle actuating body 13a is projected so as to slightly overlap with the lower side of the knitting needle actuating body 13a.
It is possible to prevent the butt of the knitting needle, which is pulled by the knitting yarn and tries to return, from being caught between the knitting needle operating body 13a and the regulating cams 15a, 15b.

In this way, since the guiding cam 14, the rotary body 13, and the forward movement regulating cams 15a and 15b are attached to the movable plate 8, they can be moved in the front-back direction to adjust the stitch size while maintaining the initially set relative positions. It is possible. In order to adjust the size of the stitches,
As shown in the figure, a stitch adjustment cam 17 is rotatably mounted on a shaft 16 fixed to the rear part 3b of the carriage, and a spiral groove 18 is formed on the lower surface of this cam 17.
(Fig. 2) is formed, and a pin 19 fixed to the movable plate 8 is fitted into this groove. By rotating the stitch adjustment cam 17 clockwise at the position shown in FIG. 2, the stitch size can be adjusted to the maximum stitch adjustment position shown in phantom lines in FIG. In order to hold the stitch adjustment cam 17 stationary in the adjustment position, the free end of a leaf spring 20 mounted on the front part 3a of the carriage engages in a ratch 17a on the circumference of the stitch adjustment cam 17.

Next, to explain the transmission device for running the rotating body 13 and the carriage 13, a motor 21 is attached to the movable plate 8 above the rear part 3b of the carriage, and a pinion 22 on the shaft of the motor 21 is
A gear 24 is rotatably supported on a bracket 23 on the movable plate 8, and a pinion 25 coaxial with the gear 24 is engaged with a gear 27 rotatably supported on a bracket 26 attached to the movable plate 8. ,
A pinion 28 coaxial with this gear 27 is connected to the rotating body 13.
It meshes with gear 29, which is coaxial with , and is significantly decelerated. Furthermore, in order to drive the carriage 3 left and right, a clutch 28 is attached to the rotating shaft 11 of the rotating body 13.
Bevel gears 30 and 31 facing each other are loosely fitted, and both bevel gears mesh with a bevel gear 33 on a shaft rotatably supported by a bracket 32 attached to the movable plate 8. pinion 34 coaxial with
is engaged with a gear 36 supported by a bracket 35 attached to the rear part 3b of the carriage. As shown in FIG. 3, the lower part of this gear 36 projects downward from the rear part 3b of the carriage and engages with a rack 37 on the knitted bed 2. Since the entire transmission device except the motor 21 and the gear 36 is attached to the movable plate 8, when the stitch adjustment cam 17 is turned, the motor 21 and the entire transmission device move together.

Next, the operation of the hand knitting machine configured as above will be briefly explained. In Figure 1, carriage 3
When the knitting needle is moved in the direction of the arrow, the butt 1b of the knitting needle, which has already passed the knitting yarn through the hook and is in the latch release position, is introduced between the right side cam body 6a and the guide portion 4f of the front cam body 4. The one-way guide cam 7a is pushed to the horizontal upper edge 4d of the front cam body 4.
, and after being retreated by the retreating cam 4c,
Proceeding along the upper edge 4a of the front cam body, the guide cam 1
When the stitch size is adjusted by 4, the guide cam 14 retreats along the inclined edge of the guide cam 14,
Next, as shown in Fig. 3, the butt 1b of one knitting needle 1 is
The knitting needles 1 are engaged with the blades 13a of the rotating body 13, and the knitting needles 1 are rapidly retreated to the knockover position. At this time, the old stitch is knitted and a new stitch is knitted, and the knitting needle is placed at the knockover position, but since the carriage is moving in the direction of the arrow, the knitting needle moves diagonally to the left slightly. do. Knitting needle 1 detached from rotating body 13
The butt 1b is pulled forward by the tension of the knitting yarn hooked on the hook 1a of the knitting needle, but is prevented from returning by the forward movement regulating cam 15b, and the stitch adjustment cam 17 is at the adjustment position. A stitch of a size corresponding to that is formed. Then, the butt 1b of the knitting needle is advanced by the forward cam 5b and the one-way guide cam 7b of the rear cam body 5, and then guided by the guide edge 4g of the front cam body 4 to exit the carriage.

Even when the carriage 3 is moved in the direction opposite to the direction of the arrow in FIG. 1, the rotating body 13 rotates in the same direction and the stitches are knitted in the same way.

Another modification of the regulating cam according to the present invention is shown in FIGS. 4 and 5. In this embodiment, protrusions 1 extend downward from the base plate of the regulating cam body 100 attached to the movable plate 8 at the rear of both sides of the rotating body 13.
At the ends of the fixed shafts 103 and 104 of 01 and 102,
The regulating cams 105 and 106 are pivoted at opposing inner ends thereof so as to protrude below the outer side of the knitting needle actuating body 13a of the rotating body 13, and at this time, the fixed shaft 10
3, 104 are fitted with spiral springs 107, 108, which are fixed to the cams 105, 106 at one end and to the protrusions 101, 102 at the other end. The end is always urged forward. By this,
The butt 1c of the knitting needle 1, which is being retracted by the knitting needle operating body 13a of the rotating body 13, engages with the opposing inner ends of the regulating cams 105 and 106 located below the rotating body, and resists the spring 108. and rotate it backwards. When the butt 1c of the knitting needle 1 reaches the knockover position, the regulating cam 105,
106 returns to its original position and the butt 1c of knitting needle 1
Since it is located in front of the knitting needle 1, it is possible to prevent the knitting needle 1 from returning.

(Effects of the invention) In the present invention, the inner end of the advance regulating cam is arranged so as to overlap the lower side of at least the outer part of the knitting needle actuating body, so that when the knitting needle reaches the knockover position, the knitting yarn It is possible to reliably prevent the butt of the knitting needle that is being pulled and try to return from being caught between the knitting needle actuating body and the regulating cam to form a stable stitch, and the structure is simple and economical. It has the advantage of being

[Brief explanation of the drawing]

Fig. 1 is a plan view from below of the carriage of a hand knitting machine equipped with a regulation cam according to the present invention, Fig. 2 is a plan view from above of the carriage adjusted to the minimum stitch adjustment position, and Fig. 3 is a plan view from above of the carriage adjusted to the minimum stitch adjustment position. 2 is a cross-sectional view of the carriage taken along the line - in FIG. 2, FIG. 4 is a plan view of the carriage seen from below, showing another embodiment of the regulating cam, and FIG. FIG. 3 is a partial cross-sectional view taken along line -. 1...knitting needle, 1C...butt, 2...needle bed, 3
...Carriage, 13a...Knitting needle operating body, 15
a, 15b; 105, 106...Regulation cam.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A carriage installed on the needle bed so as to be movable in the direction in which the knitting needles are arranged is capable of retracting the knitting needles supplied with knitting yarn one by one from the flat pull-out position to the knock-over position. a knitting needle operating body for knitting stitches;
In a hand knitting machine equipped with a regulating cam that regulates the advancement of the butt of the knitting needle that has been retracted by the knitting needle operating body and has come off to the left and right outside and guides the butt, the inner end of the regulating cam is connected to the knitting needle operating body. A hand knitting machine characterized in that the hand knitting machine is arranged at a position corresponding to at least the lower side of the outer part of the hand knitting machine. (2) The regulating cam is arranged so that the inner end thereof is always placed at a position corresponding to the lower side of the knitting needle actuating body by the action of a spring, and the butt of the knitting needle is retracted by the knitting needle actuating body. The hand knitting machine according to claim 1 of the utility model registration claim, which is arranged so as to be movable so as to avoid the outside.