JPS641973Y2 - - Google Patents

Description

[Detailed explanation of the idea] Purpose of invention (Industrial application field) This invention relates to a needle bed for hand knitting machines.

(Prior Art) As shown in FIG. 3, for example, a conventional needle bed for a hand knitting machine includes a pair of hanging guide plates 2 and 3 extending left and right at a predetermined distance from each other on the upper part of the needle bed main body 1. A groove plate 6 having a butt guide groove 6a is installed on both the drooping guide plates 2 and 3, and a groove plate 6 having a butt guide groove 6a is installed on both the drooping guide plates 2 and 3. The base 7c of each knitting needle 7 is inserted, and the stem 7a and shank 7b of each knitting needle 7 are respectively inserted into the guide grooves 4 and 5, so that each knitting needle 7 is supported so as to be movable back and forth and up and down.
A comb-like leaf spring 8 is provided below each knitting needle 7 at each open end thereof and acts separately on the lower surface of the shank 7b of each knitting needle 7 to push the knitting needle 7 upwardly. Furthermore, the groove plate 6
A regulating piece 9 is provided below the rear edge to regulate the upper position of each knitting needle 7, and at the rear of the rear hanging guide plate 3, as the carriage 12 slides, the needle 7 is moved up to the chain line position in FIG. A needle selection device 10 is provided which includes a handle plate 11 for locking the knitting needles 7 that are pushed down to select each knitting needle 7 based on, for example, a knitting needle arrangement signal on a needle selection card.

(Problem to be solved by the invention) However, in the conventional needle bed, the regulating piece 9 for regulating the upward movement of the knitting needles 7 is provided behind the open end of the leaf spring 8. In order to ensure the forward and backward stroke of each knitting needle 7, the length of the knitting needle 7 must be such that the rear end of the knitting needle 7 does not come off from the regulating piece 9 when the knitting needle 7 moves forward.
shank 7b must be formed. In this case, the front and back width of the needle bed main body 1 increases, resulting in a problem that the needle bed as a whole has to be enlarged. This problem is especially noticeable in needle beds dedicated to thick yarn knitting, where the needle pitch is larger than that of ordinary hand knitting machines and the back and forth stroke of the knitting needles must be lengthened in order to knit thick yarn.

Structure of the invention (Means for solving the problems) In order to solve the above problems, in this invention, each knitting needle 35 corresponds to the open end of the leaf spring 37.
In between, the leaf springs 37 are disposed at approximately the same height as the lower surface of the needle stem of the knitting needle 35 located above, respectively.
A spring receiving piece 41 having a lower surface that directly contacts the upper surface of the open end and receives the open end against the spring force is fixedly arranged.

(Function) With the above configuration, in this device, the leaf spring 37
Since the upper surface is received by the lower surface of the spring receiving piece 41, each knitting needle 35 is not moved further upward than the upper position, and there is no need to restrict the rear part of the shank 35b with a restriction piece as in the conventional case. , the back and forth stroke of each knitting needle 35 can be made long without making the shank 35b particularly long.

(Example) Hereinafter, an example in which this invention is embodied in a hand knitting machine exclusively for knitting thick yarn will be described with reference to FIGS. 1 and 2. A pair of upper and lower support members 21 and 22 extending laterally are arranged and fixed on the front edge of the needle bed main body 20 extending laterally. A large number of comb teeth 26 are attached at a predetermined pitch (9 mm, twice that of an ordinary hand knitting machine) between the flat plate portions 24 and 25 facing each other at the front edges of both support members 21 and 22. . A guide portion 27 having an inverted U-shape in cross section is integrally bent at the rear edge of the flat plate portion 25 of the upper support member 22, and the guide portion 27 has a number of guide grooves 27a facing each other in the front and back. 27b are formed at a predetermined pitch. Then, each guide groove 27a, 2
7b is located between the comb teeth 26. Further, a hanging portion of this guide portion 27 having front and rear guide grooves 27a and 27b constitutes a front hanging guide plate 28.

At a position spaced a predetermined distance rearward from the front drooping guide plate 28, the needle bed main body 20 has a rear drooping guide plate 29 extending left and right, and a mounting portion 3 on the lower edge thereof.
It is attached by 0. The upper edge of this rear hanging guide plate 29 has a support portion 3 bent rearward.
1 is provided. Further, this rear hanging guide plate 29 has a guide groove 27 of the front hanging guide plate 28.
A large number of guide grooves 32 are formed facing the guide grooves a and 27b. This guide groove 32 is connected to the upper horizontal support section 3.
It is opened up to 1 and has an almost inverted L-shape in cross section.

A groove plate 33 extending left and right is installed and fixed on the support part 31 and the guide part 27, and the groove plate 33 has a large number of butt guide grooves 34 extending back and forth corresponding to the guide grooves 27a, 27b, and 32. is formed. The rear end of this butt guide groove 34 matches the rear end of the guide groove 32 of the rear hanging guide plate 29, and the front end matches the guide groove 27b of the front hanging guide plate 28. In each guide groove 27a, 27b of the guide portion 27, a large number of stems 3 of knitting needles 35 are inserted.
5a are respectively inserted, and the shank 35b of the knitting needle 35 is also inserted into each guide groove 32 of the rear hanging guide plate 29, and the groove plate 3
Butt 3 of knitting needle 35 is inserted into each butt guide groove 34 of 3.
5c are inserted through each. Each of the guide grooves 27a, 27b, 32 and the butt guide groove 3
4, each knitting needle 35 can move in the front-back direction and the up-down direction. Note that the stem 35a and the shank 35b constitute a needle trunk.

A support piece 36 that protrudes substantially rearward is integrally formed on the rear edge of the lower support member 21, and a comb-shaped plate spring 37 is attached to the base end of the support piece 36 so as to correspond to each knitting needle 35. It is attached by a plurality of screws 38 at. The open end of each leaf spring 37 is formed to have a width sufficiently wider than the left and right width of the shank 35b of each knitting needle 35, and engages with the lower surface of the shank 35b to move the knitting needle 35 to the second position based on the spring force. It is arranged at the upper position shown by the solid line in Figure 1. Both hanging guide plates 28, 29
A spring receiver 39 having a substantially inverted L-shaped cross section is attached to the front side of the rear hanging guide plate 29 at its base end with a plurality of screws 40, and each adjacent leaf spring 37 is attached to the upper part of the spring receiver 39. A large number of spring receiving pieces 41 are formed which correspond to the sides of the open end of the knitting needles 35 and are located between the respective knitting needles 35 .
The plate spring 37 allows vertical and longitudinal movement of b.
A notch groove 42 is formed with a width sufficiently smaller than the left-right width of the open end of the groove. Furthermore, each spring receiving piece 4
1 is the knitting needle 3 placed at the upper position as described above.
It is arranged at approximately the same height as the lower surface of the shank 35b of No. 5. The lower surface of this spring receiving piece 41 directly contacts the upper surface of the open end of the leaf spring 37 to receive the open end against the spring force.

Further, an elastic body 43 is accommodated inside the guide portion 27 for elastically contacting the upper surface of the stem 35a of each knitting needle 35 to provide appropriate resistance to its back and forth movement. Furthermore, the rear hanging guide plate 29
A well-known needle selection device 45 having a large number of handle plates 44 is disposed behind the needle selection device 45 . In this embodiment, when the butts 35c of the knitting needles 35 are pressed downward based on the sliding movement of the carriage (not shown), each knitting needle 35 resists the biasing force of the corresponding leaf spring 37 as indicated by the chain line in FIG. It is moved to the lower position shown, and in that state, the handle plate 44 of the needle selection device 45 is operated to perform a needle selection operation. or,
In the state in which the pressing force on each butt 35c is released, that is, the open end of each leaf spring 37 is pressed against the lower surface of the spring receiving piece 41, and each knitting needle 35 is placed in the upper position based on this, as shown in the figure. By sliding the carriage, each knitting needle 35
is moved in the front-back direction so that stitches can be knitted.

As is clear from the above description, in this embodiment, the open end of the leaf spring 37 is received by the lower surface of each spring receiving piece 41;
No matter what position each knitting needle 35 is in, the knitting needle 35 will not be moved further upwards from the upper position shown by the solid line in FIG. Therefore, unlike the conventional arrangement in which a regulating piece is provided, there is no need for the shank 35b to protrude significantly rearward in order to regulate the upward movement of the knitting needles 35, and the length of the shank 35b can be shortened. Therefore, even in a needle bed dedicated to thick yarn knitting, which is equipped with large knitting needles and has a large front-to-back stroke so that knitting can be performed with thick yarn, the front-to-back width can be reduced to make the entire needle bed compact.

Effects of the invention As detailed above, in this invention, the open end of the leaf spring 37 is received by the lower surface of each spring receiving piece 41, so that no matter what position each knitting needle 35 is in, The knitting needle 35 does not move further upward from the upper position where the lower surface of the needle stem of the knitting needle 35 is at approximately the same height as the lower surface of the spring receiving piece 41. Therefore, unlike the conventional arrangement in which the regulating piece is provided behind the open end of the leaf spring, the knitting needle 35
There is no need for the shank 35b to protrude significantly rearward for regulating upward movement;
The length of b can be shortened. Therefore,
Even in a needle bed dedicated to thick yarn knitting, which is equipped with large knitting needles and has a large front-to-back stroke so that knitting can be performed with thick yarns, the front-to-back width can be reduced to make the entire needle bed compact.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of this invention, in which Figure 1 is a cross-sectional view of the needle bed, and Figure 2 is a plan view of the needle bed with main parts cut away. It is. FIG. 3 is a sectional view of a needle bed showing a conventional example of this invention. In the figure, 27b is a guide groove, 28 is a front hanging guide plate, 29 is a rear hanging guide plate, 32 is a guide groove, 35 is a knitting needle, 37 is a leaf spring, and 41 is a spring receiving piece.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A pair of hanging guide plates 2 at the front and rear of the needle stem of each knitting needle 35.
The needles 8 and 29 are inserted into the guide grooves 27b and 32 respectively and supported so as to be movable back and forth and up and down, and below each knitting needle 35, an open end acts on the lower surface of the needle shaft of each knitting needle 35. A leaf spring 37 that pushes up the knitting needle 35 to an upper position at all times.
In the needle bed equipped with the above-mentioned needle bed, between the open ends of the leaf springs 37 and the respective knitting needles 35 corresponding to each other, each knitting needle 35 is disposed at substantially the same height as the lower surface of the needle stem of the knitting needles 35 in the upper position, and the leaf springs 37 A needle bed for a hand knitting machine, characterized in that a spring receiving piece 41 is fixedly disposed, the spring receiving piece 41 having a lower surface directly abutting the upper surface of the open end and receiving the open end against the spring force. 2. The needle bed for a hand knitting machine according to claim 1, wherein the spring receiving piece 41 is disposed between the pair of front and rear hanging guide plates 28, 29. 3. The needle bed for a hand knitting machine according to claim 1 or 2, wherein the base end of the spring receiving piece 41 is fixed to the rear hanging guide plate 29.