JPS5929705B2 - Effective motion range division device for hand knitting machines - Google Patents

Description

Detailed Description of the Invention: A knitting pattern (representing the pattern to be knitted) recorded on a recording medium such as a card is read as a binary electrical signal and stored in a memory. In a hand knitting machine with an electronic configuration that reads a binary electrical signal in synchronization with the traveling timing of the carriage and selects needles according to the content (1 or O) of the binary electrical signal, only knitting needles within a certain range on the needle bed are used. In order to effectively select needles, the knitting needles corresponding to both the left and right ends within that range are determined, and the binary electrical signals stored in the memory are effectively read out only while the carriage is traveling within that range. be exposed.

In such a case, the knitting needles corresponding to the left and right ends are indicated in advance, and when the carriage approaches the left and right indicated knitting needles, a predetermined electric signal is sent to each of the left and right indicated knitting needles. With the signal, it is necessary to create a square wave electrical signal for effective readout.

Therefore, the present invention provides an effective operation range division in which a predetermined controlled means is controlled only when the carriage is traveling within a certain range on the needle bed, such as by dividing the effective needle selection range as described above. The object of the present invention is to provide an effective motion range dividing device that is simple in structure, precise in operation, and has excellent durability.

To demarcate the effective movement range, for example the effective needle selection range,
A pair of left and right point setting members 31 and 3r are placed on the needle bed 1 and on the rear side of the rear end of the needle groove 2.

Although the left and right point setting members 31 and 3r are oriented in opposite directions, their individual configurations are substantially the same.

That is, the point setting members 31, 3r have flat upper and lower surfaces, and have an index groove 3□ formed at the center of the front end of the upper surface, and a needle bed 1 surface on the rear side of the needle groove 2 on the left and right sides of the lower surface. Pins 4A' and 4r are provided protrudingly to fit into the small holes 1' arranged in rows, and a plurality of butt catchers for engaging the butts N' of the knitting needles N are provided on the front side. Enter groove 3□・
. . . and a rectangular magnet mounting hole 3 which penetrates from the center of the top surface to the center of the top surface. has been established.

The left point setting member 31 has a pair of magnets 5N with N and S poles in its magnet mounting hole 33.
5S are lined up and fitted on the left and right with the N-pole magnet 5N on the left side and the S-pole magnet 5S on the right side across the index groove 31, and the point setting member 3r on the right side. Contrary to the above, the Q and S pole magnets 5S are fitted on the left side, and the N pole magnets 5N are fitted on the right side.

Therefore, the left and right point setting members 31, 3r are inserted into the needle bed 1 by inserting their pins 41, 4r into the small holes 1' of the needle bed 1.
When placed on top, both magnets are 5N.

5S is adsorbed to the needle bed 1, and the pins 41 and 4r are blown into the small holes 1', so that the needle bed 1 does not wobble.
In this state, the butt N' of the knitting needle N at the rear end rest position can be kept in the butt engaging groove 3□.

On the other hand, a Hall element 7 is attached to a predetermined position on the lower surface of the plywood of the carriage 6.

Then, the carriage 6 is moved to the left and right point setting members 3A.
, If you drive from outside the range divided by 3r into the range,
In either case of the left or right row of the carriage 6, the Hall element 7 first faces the N-pole magnet 5N and then immediately faces the S-pole magnet 5S, and conversely, when it is moved from within the range to the outside, First, the Hall element 7 is an S-pole magnet 5S.
It is clear that the outputs from the two output terminals a and b of the Hall element 7 when facing the N-pole magnet 5N are as shown in FIG. 6 a and b, respectively. It is.

The outputs of these two output terminals a and b are compared by an analog comparator 8, and as shown in FIG. An electrical signal is output.

Therefore, if the output of this analog comparator 8 is used to control, for example, the readout operation of the memory that stores binary electric signals related to the knitting pattern, only the knitting needles N within the interval range of the left and right point setting members 31, 3r can be controlled. This allows effective needle selection.

In the above embodiment, by placing the left and right point setting members 31, 3r on the needle bed 1, the effective operating range is divided at any position on the needle bed with any width. By mounting the left and right point setting members 3A and 3r on the knitting machine main body so that they can slide left and right, and sliding them left and right, the effective operating range can be divided at any position and with any width. It may be done as follows.

As is clear from the above description, according to the effective operating range dividing device of the present invention, an electric signal representing an effective operating range is generated by a pair of point setting members equipped with N and S pole magnets and a Hall element. can be taken out,
It has a simple configuration, and since the output of the Hall element does not chattering, it operates reliably and has good durability due to non-contact detection.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view of only a portion of the needle bed; FIG. 2 is a diagram of the entire hand knitting machine taken along line I-I in FIG. 1; 3rd cross-sectional view of
4 is a front view and a bottom view of the point setting member, FIG. 5 is a circuit diagram showing the electrical configuration, and FIG. 6 is a time chart for the circuit of FIG. 5. 3A! , 3r... Point setting member, 5N, 5
S... Magnet, 6... Carriage,
7...Hall element O

Claims (1)

[Claims] 1 Place a pair of magnets with N and S poles on each of the pair of left and right point setting members that can be set at any left and right positions on the knitting machine body, and place both N and S magnets on each point setting member on the left and right. , and the point setting members are N
, S are arranged in a reverse left-right relationship, and the carriage side is provided with the above-mentioned N, S as it travels.
An effective operating range dividing device for a hand knitting machine, comprising a Hall element that outputs electric signals corresponding to the stitches N and S, respectively, facing a magnet.