JPH0220228Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is based on a carriage that is movable in the direction in which the knitting needles are arranged on the needle bed of a hand-knitting machine. The present invention relates to a knitting needle actuating body for a hand knitting machine for knitting a stitch by retracting it from a drop-off position to a knock-over position.

Prior Art Conventionally, a hand knitting machine employs a so-called single-pull knitting method, in which each knitting needle performs a complete knitting operation one by one as the carriage feeds, and adjacent knitting needles do not brake at all during this time. Conventional knitting needle drive mechanisms include the following.

The first type is a sliding plate that slides on a substrate through a pin that engages with a cam groove as a knitting cam rotates, as shown in Japanese Patent Application Laid-Open No. 57-11255. The knitting needles are operated by pushing the butts of the knitting needles using a push plate attached to the knitting plate. Such a configuration has a disadvantage in that the mechanism is complex and requires precision in the relative arrangement of each component, requiring high manufacturing precision for each component.

The second method uses a sprocket-like rotating body as a driving body for knitting needles, as shown in, for example, Japanese Patent Application Laid-open No. 161146/1983. It is necessary to determine the relative position of the actuating piece on the circumferential surface of the rotary body and the butt of the knitting needle extremely accurately, and if the relative position is incorrect, the actuating piece may incorrectly engage with the butt. , there is a drawback that it does not engage at all.

The third method is, as shown in Japanese Patent Application Laid-open No. 59-76953, for example, by pushing and pulling an operating knob, a slide member connected to this knob and a knitting needle operating body fixed to this slide member are operated. The butt of the knitting needle is pushed through the knitting needle to cause the knitting needle to perform a knitting operation. In this mechanism, an impact occurs between the needle operating body and the butt at the beginning of the knitting operation of the knitting needles, and the knitting machine user has to perform the knitting operation of the knitting needles at an appropriate timing, which is complicated. But there are drawbacks.

Furthermore, the fourth one is, for example, Japanese Patent Application Laid-Open No. 58-120847.
As shown in the publication, a needle actuating body that clamps or pushes a knitting needle is connected to a member that swings by rotation of a knitting needle actuating cam via a pin and a cam groove. This configuration also has the disadvantage that the knitting needle drive mechanism is complicated as a whole, and that the knitting operation of the knitting needles is accompanied by an impact, especially between the butt and the needle actuating body.

Problems to be Solved This invention eliminates the drawbacks associated with the prior art, simplifies the knitting needle drive mechanism, eliminates the need for relative arrangement between each component and high precision for each component, and eliminates the need for impact on the knitting needle. so that it can operate accurately,
The basis of the objective is to create a knitting needle operating body for a hand knitting machine that has an overall rational structure, is easy to operate, and can produce high-quality knitted fabrics.

Means for Solving the Problem The configuration for solving the above problem is to use the knitting needle actuating body as an endless belt made of a flexible material such as rubber or synthetic resin, and to provide the needle actuating piece on the endless belt. The endless belt rotates in a direction perpendicular to the direction in which the knitting needles are arranged. As the endless belt rotates in one direction, the needle actuating piece engages with the butt of one knitting needle, thereby retracting the knitting needle from the top-through position to the knock-over position.

A plurality of needle actuating pieces are provided at predetermined intervals with respect to the endless belt, and each time one stitch is knitted, the endless belt is rotated by one bit of the arrangement of the needle actuating pieces.

The needle actuating piece is integrally formed with the endless belt.

Effects The configuration of the knitting needle operating body according to this invention does not require the relative arrangement of each component or high precision for each component, and the knitting needles can be operated accurately without impact, so knitting can always be carried out smoothly. It is possible to do this, and it is also possible to make each knitted stitch a uniform size.

Embodiment The knitting needle actuating body 2 made of a flexible material such as rubber or synthetic resin is an endless belt around three rollers 5', 6, 6' and one sprocket 5. In this embodiment, the sprocket is shown at the lower right in the figure, and a protrusion 7 provided on the periphery engages with a hole 4 in the belt, and the rotation of the sprocket 5 drives the belt. The holes 4 are provided at regular intervals on both ends of the belt in the width direction.

The endless belt is provided with needle actuating pieces 3, which are a plurality of actuating protrusions vertically attached at a constant pitch on the upper surface. As the belt rotates in one direction, the needle actuating piece 3 hits the butt 9 of the knitting needle 8 and moves the knitting needle 8 to perform a knitting motion. That is, the knitting needles are moved back from the flat-out position to the knock-over position.

A plurality of needle actuating pieces 3 are provided on the endless belt at predetermined intervals, and each time one stitch is knitted, the endless belt is rotated by one pitch of the arrangement of the needle actuating pieces 3.

The needle actuating piece 3 is formed integrally with the endless belt.

In addition, clockwise rotation of sprocket 5 in the figure is as follows:
A shaft 12 is driven via a gear interlocking mechanism 11 that connects the operating disc 10 to a rotating shaft with bevel gears interposed therebetween by manually or electrically rotating the operating disc 10 provided at the center of the carriage 1. This is caused by the fact that the sprocket 5 is connected to the sprocket 5.

[Brief explanation of the drawing]

FIG. 1 is a top view of the endless belt provided at the center of the carriage, and FIG. 2 is a layout diagram of the endless belt as seen in a longitudinal section taken along the - line in FIG. Symbols in the figure: 1... Carriage, 2... Knitting needle actuating body, 3... Needle actuating piece, 4... Hole, 5... Sprocket, 5', 6, 6'... Roller, 7... Protrusion of 5 , 8...knitting needle, 9...butt of 8, 10...operating disk, 11...gear interlocking mechanism, 12...drive shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A carriage that is movable in the direction in which the knitting needles are arranged on the needle bed is used to move the knitting needles supplied with knitting yarn one by one from the flat pull-out position to the knock-over position to create the stitches. In the knitting needle actuating body of a hand knitting machine for knitting, the knitting needle actuating body 2 is made of a flexible material such as rubber or synthetic resin and is rotatable in a direction perpendicular to the direction in which the knitting needles are arranged. A knitting needle actuating body for a hand knitting machine, which is composed of an endless belt, and is provided with a needle actuating piece 3 that hits the butt of the knitting needle and retracts the knitting needle from the edge-out position to the knock-over position. . 2. The scope of claim 1 for registration of a utility model, in which the needle actuating pieces 3 are arranged at predetermined intervals and are configured to rotate by one pitch of the arrangement of the needle actuating pieces 3 for each knitting of one stitch. The knitting needle operating body of the hand knitting machine described in . 3. A knitting needle actuating body for a hand knitting machine according to claim 1 or 2 of the utility model registration claim, in which the needle actuating piece 3 is integrally formed with an endless belt.