Knitting machine

Abstract

To provide a knitting machine having a relatively simple structure.SOLUTION: The knitting machine 100 has a relatively simple configuration including two members, i.e., the knitting needle-holding cylinder 10 and the annular member 20, as members for suitably moving the knitting needle 1, which is moved up and down by the cam 30, in the vertical direction. In the annular member 20 of the knitting apparatus 100, a pair of upper ribs 2323 having a gap of the same size as the widths of the guide grooves 22 are provided for each guide groove 22, and the pair of upper ribs 2323 are disposed in the hole 12a of the flange portion 12. The knitting yarn knitted by the knitting needle 1 moving up and down hardly enters the gap between the members of the knitting needle-holding tube 10 and the annular member 20, so that the occurrence of the problem that the knitting yarn enters the gap between the members can be reduced, and the knitted fabric can be suitably formed by the knitting machine 100.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a knitting machine. [Background technology]

[0002] BACKGROUND ART Conventionally, there is a knitting machine that knits a knitting yarn by sequentially moving a plurality of knitting needles arranged in a circle up and down using a cam mechanism to form a knitted fabric (see, for example, Non-Patent Document 1).

[0003] For example, one such knitting machine is known that includes three components: a knitting needle holding tube that holds multiple knitting needles in a circular arrangement; a ring-shaped member that is fitted over the knitting needle holding tube and has multiple holes through which the tips of the knitting needles that move up and down appear; and a crown-shaped member that is fitted over the ring-shaped member and has multiple protrusions for forming loops in the knitting yarn that is knitted by the knitting needles and feeding it. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] URL:https: / / www.youtube.com / watch?v=yM4Rb0DTyKU ; (How Circular Knitting Machines Work? Designing one from scratch-BANDARRA) Summary of the Invention [Problem to be solved by the invention]

[0005] The conventional knitting machines described above have a large number of parts.

[0006] SUMMARY OF THE INVENTION An object of the present invention is to provide a knitting machine having a relatively simple structure. [Means for solving the problem]

[0007] The first method is a knitting needle holding tube having a tube portion that holds a plurality of knitting needles arranged in a ring shape and that are movable in the up and down direction, and a flange portion that is provided on the upper part of the tube portion and has a plurality of holes through which the knitting needles that move up and down are inserted; an annular member disposed on the flange portion and provided with a plurality of protrusions for forming loops in the knitting yarn knitted by the knitting needle; A knitting machine comprising: The annular member is characterized by having a plurality of guide grooves for guiding the knitting needles protruding from the holes.

[0008] The second means is the first means, a pair of lower ribs are provided on the flange portion for each of the holes, the end faces of the lower ribs being opposed to each other so as to have a gap therebetween that is the same dimension as the width of the guide groove within the hole; The lower surface of the annular member is in contact with the upper surfaces of the pair of lower ribs, and the end surfaces of the pair of lower ribs and the side surfaces on both sides of the guide groove are configured to be approximately flush and continuous.

[0009] The third means is the first means, a pair of upper ribs are provided on the annular member for each guide groove, the upper ribs facing each other on their inner surfaces and extending downward with a gap having the same dimension as the width of the guide groove; The inner surfaces of the pair of upper ribs and the side surfaces on both sides of the guide groove are flush and continuous, The pair of upper ribs are disposed within the holes. [Effects of the Invention]

[0010] According to the first means, a knitting machine of relatively simple configuration is obtained, which comprises a knitting needle holding tube having a tubular portion and a flange portion and holding knitting needles so that they can move up and down, and an annular member provided with a guide groove for guiding the knitting needles as they move up and down.

[0011] According to the second means, the upper surfaces of a pair of lower ribs, whose end faces face each other within the hole in the flange portion, are in contact with the lower surface of the annular member, and the side surfaces on both sides of the guide groove of the annular member and the end surfaces of the pair of lower ribs within the hole in the flange portion are configured to be approximately flush and continuous. This reduces the problem of the knitting yarn knitted by the knitting needle moving up and down getting into the gap between the knitting needle holding tube and the annular member, and allows the knitted fabric to be suitably formed by the knitting machine.

[0012] According to the third means, the inner surfaces of the pair of upper ribs on the annular member and the side surfaces on both sides of the guide groove are flush and continuous, and the pair of upper ribs are arranged within the holes in the flange portion of the knitting needle holding tube, thereby reducing the problem of the knitting yarn knitted by the knitting needle moving up and down getting into the gap between the knitting needle holding tube and the annular member, and allowing the knitted fabric to be formed suitably by the knitting machine. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing a knitting machine of the present embodiment (embodiment 1). [Figure 2] 1 is a perspective view showing the main configuration of a knitting machine of a first embodiment, showing a state including knitting needles. [Figure 3] 1 is a perspective view showing the main configuration of a knitting machine of a first embodiment, showing a state in which knitting needles are not included. [Figure 4] FIG. 4 is an exploded perspective view of the main configuration shown in FIG. 3. [Figure 5] 4 is an enlarged view showing a guide groove and a pair of upper ribs of the annular member of the first embodiment. FIG. [Figure 6] FIG. 10 is a perspective view showing the main configuration of a knitting machine of a second embodiment, showing a state in which knitting needles are not included. [Figure 7] FIG. 7 is an exploded perspective view of the main configuration shown in FIG. 6. [Figure 8] 10 is an enlarged view showing a pair of lower ribs in a guide groove of an annular member and a hole in a flange portion of the annular member according to the second embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of a knitting machine according to the present invention will be described with reference to the drawings.

[0015] (Embodiment 1) The knitting machine 100 of this embodiment includes, for example, as shown in Figures 1 to 4, a knitting needle holding tube 10 having a tubular portion 11 and a flange portion 12, an annular member 20 arranged on the flange portion 12 of the knitting needle holding tube 10, and a cam 30 for moving the knitting needle 1 held in the tubular portion 11 of the knitting needle holding tube 10 up and down.

[0016] The knitting needle holding tube 10 has a tube portion 11 that holds multiple knitting needles 1 arranged in a ring shape and movable in the vertical direction, and a flange portion 12 that is provided on the upper part of the tube portion 11 and has multiple holes 12a formed therein through which the knitting needles 1 that are moved up and down by a specified cam 30 are inserted. Here, the predetermined cam 30 is a substantially cylindrical end cam.

[0017] The annular member 20 is provided with a plurality of protrusions 21 for forming loops in the knitting yarn knitted by the knitting needles 1. The annular member 20 is provided with a plurality of guide grooves 22 for guiding the knitting needles 1 protruding from the holes 12a of the flange portion 12. In this annular member 20, the protrusions 21 and the guide grooves 22 are arranged alternately along the circumferential direction.

[0018] The knitting needle holder 10, the annular member 20, and the cam 30 are provided inside a case body 101 of the knitting machine. The cam 30 is fixed inside the case body 101 , and the knitting needle holding cylinder 10 is disposed inside the case body 101 so as to be rotatable on the cam 30 . The knitting needle holding tube 10 is rotated by turning a handle 102 attached to a case body 101, and the knitting needles 1 held by the knitting needle holding tube 10 move up and down depending on the height of the end face of the cam 30. The operation of each part that operates such a knitting machine 100 is similar to that of a conventionally known device, as disclosed in, for example, Japanese Patent Application Laid-Open No. 2006-63478, and therefore will not be described in detail here.

[0019] In the knitting machine 100 shown in Figure 1, the case body 101 with legs houses the knitting needle holding tube 10 and other components at an angle, but the up-down direction in this embodiment is defined as the direction in which the knitting needles 1 held in the tube portion 11 of the knitting needle holding tube 10 move.

[0020] In particular, the annular member 20 of the knitting machine 100 of embodiment 1 is provided with a pair of upper ribs 23, 23 extending downward with their inner surfaces facing each other so as to have a gap of the same dimension as the width of the guide groove 22, for each of the multiple guide grooves 22, as shown in Figures 3 and 4, for example. In this annular member 20, the inner surfaces of the pair of upper ribs 23, 23 and the side surfaces on both sides of the guide groove 22 are flush and continuous. As shown in FIG. 5, the pair of upper ribs 23, 23 of the annular member 20 are disposed in the corresponding holes 12a of the flange portion 12, respectively. 5, the sewing needle 1 is omitted from the illustration in order to clearly show that the pair of upper ribs 23, 23 of the annular member 20 are disposed within the corresponding holes 12a of the flange portion 12. The pair of upper ribs 23, 23 provided on the annular member 20 cause the guide groove 22 to extend downward, so that the knitting needle 1, which is moved up and down by the cam 30, can be suitably guided in the vertical direction.

[0021] In this way, the annular member 20 in the knitting machine 100 of embodiment 1 is provided with a pair of upper ribs 23, 23 for each guide groove 22, with a gap of the same dimension as the width of the guide groove 22, and the pair of upper ribs 23, 23 are arranged within the hole 12a of the flange portion 12, so that the knitting yarn knitted by the knitting needle 1 moving up and down is less likely to get into the gap between the knitting needle holding tube 10 (flange portion 12) and the annular member 20. In other words, the knitting yarn knitted by the knitting needle 1 moving up and down can be prevented from getting caught in the gap between the knitting needle holding tube 10 and the annular member 20, so this knitting machine 100 can form knitted fabrics in an optimal manner.

[0022] The knitting machine 100 of embodiment 1 has a relatively simple configuration with two components, a knitting needle holding tube 10 and an annular member 20, as components for appropriately moving the knitting needle 1, which is moved up and down by the cam 30, in the vertical direction, thereby reducing the number of parts in the knitting machine 100.

[0023] (Embodiment 2) Next, a second embodiment of the knitting machine according to the present invention will be described. The same parts as those in the first embodiment will be given the same reference numerals, and only the different parts will be described.

[0024] In the knitting machine 100 of embodiment 2, a pair of lower ribs 13, 13 are provided for each of the plurality of holes 12a in the flange portion 12 of the knitting needle holding tube 10, with their end faces facing each other so as to have a gap of the same dimension as the width of the guide groove 22 within the holes 12a of the flange portion 12, as shown in Figures 6 and 7, for example. As shown in Figure 8, the lower surface of the annular member 20 is in contact with the upper surfaces of the pair of lower ribs 13, 13, and the end surfaces of the pair of lower ribs 13, 13 and the side surfaces on both sides of the guide groove 22 are configured to be approximately flush and continuous. In the center of Figure 8, the sewing needle 1 is omitted to clearly show that the end faces of the pair of lower ribs 13, 13 and the side surfaces on both sides of the guide groove 22 are substantially flush and continuous. A pair of lower ribs 13, 13 provided within the hole 12a of this flange portion 12 causes the guide groove 22 to extend into the hole 12a, so that the knitting needle 1, which is moved up and down by the cam 30, can be suitably guided in the vertical direction.

[0025] In this way, a pair of lower ribs 13, 13 having a gap of the same dimension as the width of the guide groove 22 are provided for each hole 12a within the flange portion 12 in the knitting machine 100 of embodiment 2, and the end faces of the pair of lower ribs 13, 13 and the side surfaces on both sides of the guide groove 22 are approximately flush and continuous, making it difficult for the knitting yarn knitted by the knitting needle 1 moving up and down to get into the gap between the knitting needle holding tube 10 (flange portion 12) and the annular member 20. In other words, the knitting yarn knitted by the knitting needle 1 moving up and down can be prevented from getting caught in the gap between the knitting needle holding tube 10 and the annular member 20, so this knitting machine 100 can form knitted fabrics in an optimal manner.

[0026] The knitting machine 100 of embodiment 2 has a relatively simple configuration with two components, a knitting needle holding tube 10 and an annular member 20, as components for appropriately moving the knitting needle 1, which is moved up and down by the cam 30, in the vertical direction, thereby reducing the number of parts in the knitting machine 100.

[0027] The application of the present invention is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the present invention. [Explanation of symbols]

[0028] 1 knitting needle 10 Knitting needle holding cylinder 11 Cylinder part 12 Flange 12a hole 13 Pair of lower ribs 20 Annular member 21 Protrusion 22 Guide groove 23 Pair of upper ribs 30 Cam 100 knitting machine 101 Case body 102 Handle

Claims

1. a knitting needle holding tube having a tube portion that holds a plurality of knitting needles arranged in a ring shape and that are movable in the up and down direction, and a flange portion that is provided on the upper part of the tube portion and has a plurality of holes through which the knitting needles that move up and down are inserted; an annular member disposed on the flange portion and provided with a plurality of protrusions for forming loops in the knitting yarn knitted by the knitting needle; A knitting machine comprising: The knitting machine is characterized in that the annular member is provided with a plurality of guide grooves for guiding the knitting needles protruding from the holes.

2. a pair of lower ribs are provided on the flange portion for each of the holes, the end faces of the lower ribs being opposed to each other so as to have a gap therebetween that is the same dimension as the width of the guide groove within the hole; The knitting machine according to claim 1, characterized in that the lower surface of the annular member contacts the upper surfaces of the pair of lower ribs, and the end surfaces of the pair of lower ribs and the side surfaces on both sides of the guide groove are configured to be approximately flush and continuous.

3. a pair of upper ribs are provided on the annular member for each guide groove, the upper ribs facing each other on their inner surfaces and extending downward with a gap having the same dimension as the width of the guide groove; The inner surfaces of the pair of upper ribs and the side surfaces on both sides of the guide groove are flush and continuous, 2. The knitting machine according to claim 1, wherein the pair of upper ribs are disposed within the holes.

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