JPH0340786Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention consists of a long electronic component chain in which a plurality of electronic components with lead terminals such as resistors and capacitors are arranged and held on a holding tape, and the electronic component chain is spirally wound around a winding core. The invention relates to a rolled body.

As shown in FIG. 1, an electronic component chain 1 generally has a large number of electronic components 4 such as resistors and capacitors arranged in a horizontal row at equal intervals, and the lead terminals 4a of each electronic component 4 are connected with paper tape 5. The paper tape 5 and the adhesive tape 6 are sandwiched between the paper tape 5 and the adhesive tape 6.
It is well known that feed guide holes 8 are punched out at regular pitches on a holding tape 7 made of the following. When this is transported or handled by an automatic machine, it is often wound spirally around a prepared winding core.

Conventionally, as this type of electronic component serially wound body, one disclosed in, for example, Japanese Utility Model Application Laid-Open No. 58-144899 is known. This uses a cardboard cylinder as the winding core, and flanges are attached to both ends of the core from the outside using cylindrical members to form a reel.A series of electronic components is wound around this reel, as shown in Figure 2. As shown in the figure, a pair of left and right large-diameter disk-shaped flanges 13, 13 having a fitting hole 15 in the center are fitted onto a pair of metal cylindrical members 22, 22 made of tin plate, etc. The cylindrical member 2 is inserted from the left and right open ends of the cylindrical winding core 2 made of thick paper.
2 and 22 are press-fitted, respectively, and both cylindrical members 2
Flanges 13, 1 are provided between the flanges 23, 23 formed at the left and right ends of 2, 22 and the left and right open ends of the winding core 2.
3 is clamped and fixed to form a reel 24, and the electronic component string 1 is tightly wound spirally around this reel 24. The problem with this is that first the winding core 2
is made of cardboard with poor elasticity, and the cylindrical member 22 must be press-fitted into the winding core 2, so there is a risk that the left and right open ends of the winding core 2 will be damaged when the cylindrical member 22 is press-fitted. .

In addition, as mentioned above, the winding core 2 is made of a fairly hard paper material, so if an external impact is applied,
This impact cannot be absorbed by the winding core 2,
If the electronic component chain is compressed between the winding core 2 and the electronic component 4 is cracked, there is a risk of suffering damage. In order to avoid this risk, conventionally, a sheet member (not shown) made of a foam material is wrapped around the outer periphery of the winding core 2.
The installation work was troublesome.

The present invention has been developed in view of the above-mentioned conventional problems, and aims to make it possible to assemble a reel without causing inconveniences such as damage to the winding core, and to protect electronic components from external shocks. do.

In order to achieve the above object, the present invention arranges a pair of disc-shaped side plates having a shaft hole in the center, which serve as the end plates of the winding core, in parallel and facing each other, and places the winding core between the two side plates. A plurality of elastic strip-shaped bridge pieces constituting the wrapping circumference are provided, one end of each bridge piece is integrally connected to one of the side plates,
The other end of each bridge piece is provided with an engaging portion that engages with the engagement hole in the side plate, and these bridge pieces are arranged at predetermined intervals on an imaginary circumference that is smaller in diameter than both side plates and concentric with both side plates. Arranged with a gap, a flange is provided on the inside of each side plate to prevent disturbance of the winding surface of the electronic component chain, and a flange is held at the engagement side tip of each bridge piece on the inner surface of the side plate. It has a protruding flange holding piece.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

3 to 7 show an example of a winding structure of a series of electronic components according to the present invention, which is a winding core in which a series of electronic components 1 is tightly wound in a spiral shape, as shown in FIG. 2 is loosely fitted onto a fixed shaft 3, so that the electronic component series 1 can be pulled out by the required amount. This electronic component series 1 has the same configuration as that shown in FIG. And the feed guide hole 8 is arranged and formed as explained in FIG.

The winding core 2 is made of a synthetic resin material, and has a pair of left and right disc-shaped side plates 1 with a through hole 9 for the fixed shaft 3 in the center.
0, 10, and a plurality of strip-shaped bridge pieces 11, 11, which are constructed across both side plates 10, 10 and connect and fix both side plates 10, 10.
In this example, half of the 16 bridge pieces 11, 11, . , are provided on the inner surface of each side plate 10 to protrude perpendicularly to this surface.

4 to 6 show a half member 2a of the winding core 2, which has a side plate 10 and eight bridge pieces 11, 11..., each of which has a smaller diameter than the side plate 10, and which has a smaller diameter than the side plate 10. A pair are arranged at each of the four equally divided positions on the circumference of an imaginary circle a concentric with 10,
Each pair of bridge pieces 11, 11 are arranged symmetrically,
A rectangular engagement groove 12 is cut out at the tip of each bridge piece 11, and a flange presser piece 14 that elastically contacts the inner surface of the flange 13 is provided near the proximal end of the engagement groove 12 so as to face outward. It is formed protrudingly. As shown in FIG. 7, the flange 13 is made of a large-diameter disk that is fitted into the side plate 10, and has a fitting hole 15 transparent in the center, and grooves 16 for regulating movement in the four equal parts of the fitting hole 15. 16... are formed with notches, and a pair is prepared.

The side plate 10 has a circumferential stepped portion 17 on the inner surface of the peripheral end.
This step portion 17 and a pair of bridge pieces 11, 11
A protrusion 18 for preventing rotation of the flange is provided between the proximal end of the
18... are formed. In this side plate 10, engagement holes 19, 19, which are located on the circumference of the imaginary circle a, and which are circular arc-shaped slits are formed in the center between the positions where the pair of bridge pieces 11, 11 are disposed. It has been done.

Next, the procedure for assembling the above structure will be described. First, the flanges 13, 13 are fitted into the left and right winding core half members 2a, 2a. The fitting hole 15 of each flange 13 is externally fitted into the step part 17 of the side plate 10, and the free movement regulating grooves 16, 16... engage with the anti-rotation protrusions 18, 18..., respectively, so that the side plate 10 to prevent rotation. Next, after the left and right half members 2a, 2a are opposed to each other with a relative phase shift of 45 degrees, the right bridge pieces 11, 11... are engaged with the engagement holes 19, 19... of the left side plate 10. While the engaging grooves 12, 12... are engaged, similarly, the left engaging groove 1 is engaged with the engaging holes 19, 19... of the right side plate 10.
2, 12... are attached. At this time, each engagement hole 19
, the pair of engagement grooves 12, 12 are elastically engaged with each other, and the flange holding pieces 14, 14... are in elastic contact with the inner surface of each flange 13, whereby each flange 13 is attached to each side plate 10. It is clamped and fixed between the stepped portion 17 and each presser piece 14.

In the winding core 2 assembled in this way, the rectangular bridge pieces 11, 11... are spaced at predetermined intervals with gaps S1..., S2... (see Fig. 8) having different widths.
It is disposed in a cylindrical shape with the electronic component chain 1 interposed therebetween, and constitutes the winding circumferential portion 20 of the electronic component chain 1, and both side plates 10, 10 are arranged in parallel and facing each other. After that, a long piece of interlayer paper 21 is sandwiched in one gap S1 or S2, and after wrapping this interlayer paper 21 around the winding circumferential portion 20 several times, the end of the interlayer paper 21 and the end of the holding tape 7 are wrapped. For example, by connecting the parts with an adhesive tape (not shown) such as cellophane tape, and rotating the winding core 2, the electronic component series 1 is attached to both flanges 13, 1.
3, the wire is wound while controlling the disturbance of the winding surface, thereby completing the assembly.

Depending on the type of electronic component string 1, the interlayer paper 21 may be omitted and the electronic component string 1 may be directly wound around the winding peripheral portion 20.

As explained above, according to the present invention, the winding periphery of the winding core is composed of a plurality of elastic bridge pieces, and the bridge pieces are spaced at predetermined intervals with gaps provided between each bridge piece. First of all,
Even if an external impact is applied, each bridge piece of the winding core elastically bends to absorb this impact, so that the electronic component series can be protected from such external impact. Further, since the conventional press-fitting process of press-fitting the cylindrical member into the winding core is unnecessary, damage to the reel constituent members due to press-fitting does not occur, and the assembly work becomes easier.

Furthermore, the thickness of the electronic component chain varies depending on the type of electronic component, and therefore the winding thickness also increases or decreases significantly depending on the type of electronic component, but in the present invention, the flange and the winding core are separate bodies. Therefore, even if the winding thickness of a series of electronic components differs significantly, it can be handled by leaving the winding core as it is and replacing only the flange with one of a different diameter.A variety of different sizes can be prepared. There is no need for this, and the cost of materials is low.

[Brief explanation of the drawing]

FIG. 1 is a partial front view showing a general electronic component series, and FIG. 2 is a longitudinal side view showing a conventional example. Figures 3 to 7 show an embodiment of the present invention, with Figure 3 being a vertical sectional side view of the main part, Figure 4 being a front view of the half member of the winding core, and Figure 5 being the half member of the winding core. 6 is a sectional view taken along the - line in FIG. 4, and FIG. 7 is a front view of the flange. FIG. 8 is a perspective view showing another embodiment of the present invention. 1... Electronic component series, 2... Wound core, 4... Electronic component with lead terminal, 7... Holding tape, 10...
... Side plate, 11 ... Bridge piece, 20 ... Wound peripheral part, a
...Virtual circle, S1, S2...Void.

Claims (1)

[Scope of Claim for Utility Model Registration] In an electronic component series wound body comprising a long electronic component series in which a plurality of electronic components with lead terminals are arranged and held on a holding tape and wound in a spiral shape around a winding core, the above-mentioned winding A pair of disc-shaped side plates having an axial hole in the center, which serve as the end plates of the core, are arranged in parallel and facing each other, and a plurality of elastic strips forming the winding circumferential portion of the core are placed between the two side plates. A shaped bridge piece is provided, one end of each bridge piece is integrally connected to one of the side plates, and the other end of each bridge piece is provided with an engaging part that engages with the engagement hole of the side plate. Each bridge piece has a smaller diameter than both side plates, and is arranged with gaps spaced at predetermined intervals on an imaginary circumference concentric with both side plates, and inside each side plate there is a winding surface of a series of electronic components. A serially wound electronic component body, characterized in that a flange is provided for regulating disturbance, and a flange holding piece for holding the flange on the inner surface of a side plate is provided protruding from the engagement side end of each bridge piece.