JPS6140781Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to an improvement of a support spindle in a knotless netting machine.

(Prior art) In a knotless braiding net machine, a bobbin case containing a bobbin (weight) is attached to a support weight, and as the support weight rotates and moves, it makes a predetermined movement for knitting the net. .

The conventional support spindle 30 has an engaging head 32 in the center of the mounting base 31, as shown in FIG. 4 of the attached drawings.
is provided protrudingly, and a plate spring 33 is provided so as to surround this head.The engaging head 32 is inserted through the mounting window 21 at the bottom of the bobbin case 20, and is provided on the mounting base portion 31. The leaf spring 33
By pressing them together, the support weight 30 and the bobbin case 20 can be detachably attached.

That is, the support spindle 30 is mounted with one touch by inserting its engaging head 32 through the mounting window 21 of the bobbin case 20. On the other hand, when removing the support weight 30 from the bobbin case 20, as shown in FIG. Press the claw portion 34 and remove the support weight 30.

As can be easily understood from the front view of FIG. 4, the plate spring 33 in this conventional support spindle 30 has a claw portion 34 that is attached to the bobbin case.
The bobbin case 20 engages with the opening edge 22 of the mounting window 21 of
It also had the function of communicating.

(Problems to be solved by the invention) However, in the case of the above-mentioned conventional supporting spindle,
First of all, since the corner of the claw portion 34 of the leaf spring 33 is pressed down each time the support weight is attached or removed, the claw portion 34 often becomes fatigued and becomes deformed or broken. . Secondly, the rotation of the support spindle 30 for pre-twisting is transmitted by the claw portion 34 of the leaf spring 33 engaging with the opening edge 22 of the bobbin case 20. The problem is that the leaf spring 33 is increasingly deformed and worn, and the leaf spring must be replaced frequently.

This invention is aimed at solving the problem of leaf spring fatigue in the conventional technology, and by increasing the durability of the support spindle, it also eliminates the complexity and uneconomical cost of replacement. The aim is to resolve this issue.

(Means for solving the problem) In other words, this invention involves inserting an engaging head into the bottom of a bobbin case in a knotless braiding net machine and press-fitting it with a leaf spring provided on a mounting base. In the support spindle that can be detachably attached to the bobbin case, the mounting base part below the claw of the leaf spring member provided on the mounting base part engages with the opening edge of the mounting window of the bobbin case. The present invention also relates to a support spindle for a knotless netting machine, characterized in that a convex portion having approximately the same width as the claw portion of the leaf spring is formed.

(Example) An example will be explained below according to the attached figures.
FIG. 1 is a perspective view of a support spindle 10 showing an embodiment of this invention, FIG. 2 is a central vertical sectional view thereof, and FIG. 3 is a front view of the support spindle with a bobbin case attached.

As shown in FIGS. 1 to 3, the supporting spindle 10 of this invention has an engaging head 12 inserted into the bottom of a bobbin case 20 in a knotless netting machine, and a plate provided on a mounting base 11. The present invention relates to a device that can be detachably attached to the bobbin case 20 by pressing with a spring 13.

In particular, in the support spindle 10 configured as above, the mounting window 21 of the bobbin case 20 is provided on the mounting base below the claw part 14 of the leaf spring member 13 provided on the mounting base 11. It is characterized in that a convex portion 19 is formed which engages with the opening edge 22 and has approximately the same width as the claw portion 14 of the leaf spring.

This convex portion 19 is generally formed along the outer edge of the mounting base portion 11 as shown in the figure.

In FIG. 1, reference numeral 15 is a shaft portion, and 16 is a friction plate for applying the first twist.

(Function/Effect) In the spindle 10 of this invention configured as above, when removing the spindle 10 from the bobbin case 20, the iron piece P as described above is inserted and the claw portion 14 of the leaf spring 13 is removed. Even when the head is pressed down, the protrusion 19 restricts the claw portion 14 from falling down.
is protected, deformation and breakage of the claw portion 14 can be prevented, and the durability of the leaf spring 13 itself is improved.

Further, since the rotation of the support weight 10 for the first twisting is mainly transmitted by the engagement of the convex portion 19 with the opening edge 22 of the bobbin case 20, the deformation of the leaf spring 13, Wear is reduced.
Furthermore, wear of the opening edge 22 of the bobbin case 20 is also reduced.

In this way, this invention solves the problem of leaf spring fatigue all at once, increases the durability of the support spindle and bobbin case, and eliminates the complexity and uneconomical cost associated with replacing these parts. I was able to do that.

[Brief explanation of drawings]

Figure 1 shows a supporting spindle 10 showing an embodiment of this invention.
Fig. 2 is a longitudinal sectional view of the center, Fig. 3 is a front view of the spindle with the bobbin case attached,
Figure 4 is a front view of a conventional support weight, Figure 5 is a cross-sectional view of the support weight showing a state in which the leaf spring is held down by an iron piece, and Figure 6 is a side view of the main parts showing the deformation of the leaf spring. be. 10... Support weight, 11... Mounting base part, 12...
Engagement head, 13...plate spring member, 14...claw part,
19...Protrusion, 20...Bobbin case, 21...
Mounting window, 22...opening edge.

Claims (1)

[Scope of Claim for Utility Model Registration] In a knotless braiding net machine, the engaging head is inserted into the bottom of the bobbin case and is removably attached to the bobbin case by pressing with a leaf spring provided on the mounting base. In the support spindle, the mounting portion below the claw of the leaf spring member provided on the mounting portion engages with the opening edge of the mounting window of the bobbin case, and the claw portion of the leaf spring A support spindle for a knotless netting machine characterized by forming convex portions of approximately the same width.