JPS5843421Y2 - Winding frame of winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a winding frame of a winding device for a cup-shaped rotor of a coreless motor, for example.

The cup-shaped rotor fd of a coreless motor is formed by winding a winding wire in a triangular wave shape around a cylindrical winding (for example,
-2151, Special Publication Showa 5l-38881).

Connection of the windings is then made in the customary manner by taking out taps from the windings, these taps being obtained by taking out a continuous wire at the apex of the triangular wave at the desired position and looping it outward.

A conventional example and an embodiment of the present invention will be described in detail below with reference to the drawings.

Conventionally, in order to form a loop 1 for tap polishing, a desired number of pins 3...
After winding the winding 5 in a triangular wave shape a predetermined number of times around the winding frame 4 in which .
This is done by twisting the winding 5 and engaging it with one pin 3.

In order to take out a long tap, a large loop 1 is required, and for this purpose it is necessary to increase the distance between the apex portion 6 of the winding 5 and the pin 3.

However, when the winding 5 is twisted in such a state, the twisted portion 7 is pulled toward the pin 3 and is formed near the pin 3.

In this case, the winding 5 is pulled by the twisting portion 7 and comes apart.

In order to eliminate this difficulty, it is necessary to form the twisted portion 7 as close to the apex portion 6 of the triangular wave as possible.

Therefore, as shown in FIG. 2, in addition to the pins 8 implanted near one end of the cylindrical body 1, there are also pins 8 implanted at positions a predetermined distance away from the pins 8 toward the other end of the cylindrical body 1. to other pin 9.
... is implanted and the loop 1 is formed by winding the winding 5 around the pin 8 at the end of the cylindrical body 1 and the other pin 9.

Thus, the loop 1 can be set to a constant length, and the twisted portion 7 can be set to a constant length.
is formed near the apex portion 6 of the triangular wave, and the above-mentioned drawback can be solved to some extent.

However, even in such a case, the twisted part 7 may be formed between the pins 8 and 9 due to hasty work.
(Fig.), the twisted portion 7 is formed in the vicinity of the pin 8 at the end of the cylindrical body 2 at a distance from the apex portion 6 of the triangular wave, and there is a risk that the winding 5 may come apart as described above.

The present invention is intended to eliminate such difficulties, and will be explained below with reference to FIGS. 3 and 4.

Near one end of the cylindrical body 2, which has a through hole 11 into which the rotation shaft 10 is inserted, is a guide 12 formed by bending piano wire into a U-shape, the longitudinal direction of which is parallel to the axis of the cylindrical body 2. They are planted radially so that

Since the embodiment of the present invention has such a structure, unlike the conventional example, two pins 8 and 9 are not implanted, so that the twisted portion γ of the winding 5 has two pins 8 and 9. The above-mentioned difficulty is solved without falling between the pins 8 and 90.

By appropriately selecting the longitudinal dimensions of the starboard-shaped guides 12, it is possible to obtain the loop 1 of a desired length.

Moreover, if the guide 12 is formed into a square shape as shown in FIG. 5, even if the twisted portion 7 is formed on the outer end of the guide 12, the twisted portion 7 will be The image disappears along the arcuate end 12a of the triangle wave, and is located at a predetermined portion near the apex portion 6 of the triangular wave, thereby further increasing the effect.

Furthermore, as another embodiment, the guides 12 may be formed of rectangular or fan-shaped plates instead of being formed by bending piano wire.

Furthermore, if the diameter of the winding frame 4 is small and the number of taps is large, it becomes difficult to engage the winding 5 with the guide 12.

That is, the pitch of the guides 12 becomes smaller, making it difficult to engage only one guide 12.

Therefore, when engaging, initially two or more guides 12', 12
“I follow the guide and engage it, but in the end there is only one guide 1.
It is necessary to engage only 2'.

Then, the outer ends of the guides 12 are bent in the direction of rotation of the winding frame 4, and as shown in FIGS. 6 to 8, the guides 12' to be engaged and the guides 12'' adjacent thereto are is also engaged.

When the winding 5 is then pulled, the portion engaged with the guide 12'' moves along the side of the guide 12'', and finally becomes engaged only with the initially targeted guide 12'.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views showing conventional examples, Figures 3 and 4.
5 and 5 are perspective views showing each embodiment of the present invention, and FIGS. 6 to 8 are perspective views showing further embodiments of the present invention. 10 is a rotation shaft, 11 is a through hole, 2 is a cylindrical body, 12 is a guide, and 4 is a winding frame.

Claims (4)

[Scope of utility model registration request] (1) In a device in which wires are wound in a predetermined pattern around the outer periphery of a cylindrical body to form a winding, a plurality of loop tightening guides for forming taps are provided radially protruding from the outer periphery of the cylindrical body, and , a winding frame of a winding device in which this guide is given a width that covers most of the length region from the main body of the winding to the tap end. (2) A winding frame for a winding device according to claim 1, wherein the guide is formed of a rectangular plate. (3) A winding frame for a winding device according to claim 1, wherein the guide is formed by bending piano wire into a U-shape. (4) The winding frame of the winding device according to claim 1, wherein the outer end of the guide is bent in the rotating direction of the winding frame.