JP2564449Y2 - Reel for winding - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier tape for accommodating small electronic components or a carrier type taping tape take-up reel in which small electronic components are accommodated and a top cover tape is attached thereto. .

[0002]

2. Description of the Related Art A carrier tape for accommodating small electronic components generally has a storage pocket 20 as shown in FIG.
And the feed hole 30 are continuous in the longitudinal direction, and have a variety of sizes. For example, in a carrier tape for an SOP (small outline package) type, the width (W) is 16 to 32 mm and the depth of the storage pocket is large. (C) Some have a thickness of 2.3 to 4.15 mm. There is also a carrier type taping tape in which small electronic components are accommodated in the carrier tape and a top cover tape is attached (hereinafter , the carrier tape and the carrier type taping tape are simply referred to as a tape). When such a tape is wound on a tape winding reel comprising a flange 1 and a cylindrical hub 2 shown in FIG. 4, the tape 40 overlaps near a tape insertion groove (hereinafter referred to as a groove) 3. The storage pocket 20 is deformed or damaged by the tension at the time of taking,
In some cases, winding cannot be performed smoothly.

In particular, when the storage pockets 20 overlap, the edges of the upper pockets are pressed and depressed, causing an accident in which the internal small electronic components are damaged. Therefore, overlapping of tapes must be avoided as much as possible. For this reason, when the end of the tape is crushed into a tape shape without accommodating a small electronic component, and the end is inserted into the groove, the crushing is eased, but extra work of crushing the tape is required. . It is also conceivable to fix the end portion of the tape 40 to the hub with an adhesive tape.
Less effective for thick tapes.

Further, it is conceivable to provide a step corresponding to the thickness of the tape on the surface of the hub to avoid overlapping of the tapes. However, this method is effective when winding in the forward direction with a step. However, if the winding direction is limited and the film is wound in the opposite direction, there is a disadvantage that the collapse of the storage pocket 20 is rather increased.

[0005]

The problem to be solved by the present invention is to solve the collapse of the storage pocket 20 at the start of tape winding which can occur with the tape winding reel.

[0006]

An object of the present invention is to provide a tape drive having a flange and a cylindrical hub, wherein both sides of a groove provided on a cylindrical surface of the cylindrical hub are horizontal or concave, and a tape is wound around a shoulder of the groove.
The problem can be solved by using a carrier tape or a carrier type taping tape take-up reel having a curved surface provided with a small ridge at right angles to the mounting direction .

As shown in FIG. 1 (a), the tape winding reel of the present invention cuts the vicinity of the groove 3 of the cylindrical hub 2 slightly horizontally to form a horizontal plane H,
This is a configuration in which a concave inclined surface K is provided as shown in FIG. The depth d of the horizontal cut is 0.5 to 5.0 mm, preferably 1.0 to 2.0 mm, based on the circumferential surface of the cylindrical hub 2.
mm. A radius r is formed at the boundary between the groove 3 and the horizontal plane H or the inclined surface K, that is, a curved surface is provided at the shoulder of the groove, so that the cylindrical hub has a gentle angle, for example, a diameter of a cylindrical hub of 50 to 200 mm, preferably. Is 80 to 150 mm, and when the groove depth h is 3 to 20 mm, preferably 6 to 10 mm, the radius r is 2 to 8 mm, preferably 3 to 5 mm. By doing so, the tip portion of the tape storage pocket overlapping near the groove is supported by a gentle curved surface, so that the collapse is reduced and smooth winding can be performed.

[0008] When the tape is inserted into the groove and wound, if the first winding does not remove the tape, the subsequent winding is performed smoothly. The wider the groove, the easier the tape can be inserted, but the lower the resistance to tape removal, the more easily the tape is detached at the first winding, resulting in poor workability. For this reason, in the present invention, the radius r of the groove entrance is made large, but by providing the small ridge 4 at a right angle to the tape winding direction on the curved surface of the groove entrance, a non-slip effect can be obtained and the tape winding can be achieved. Easy to take. The small ridge 4 having a sharp end and a height of 0.2 to 0.5 mm or less is sufficiently effective. In this case, the number of small ridges may be about 4 to 6.

[0009]

EXAMPLE A tape winding reel provided with a hub having the following dimensions was manufactured. Hub diameter (D) = 80 mm, groove width (w) = 2 mm, groove depth (h) = 10 mm, radius (r) = 3 mm, small ridge height = 0.3 mm, number of small ridges = 4, horizontal cut depth (d) = 2 mm, and a tape having a width (W) of 24 mm and a storage pocket depth (C) of 3.8 mm shown in FIG. As shown in the figure, the second winding turned into a normal circular shape, and smooth winding was possible.

[0010]

[Effect of the Invention] The take-up reel of the present invention can be wound in either the forward or reverse direction by forming the tape insertion groove of the cylindrical hub on both sides of a horizontal plane or a concave surface. Since the part is supported by a gentle curved surface, the collapse of the storage pocket at the start of tape winding is eased and smooth winding can be performed. In addition, a small ridge provided on the curved surface at the entrance of the tape insertion groove has a non-slip effect Is obtained, and the winding of the tape becomes easy, and the practical value is great.

[Brief description of the drawings]

FIG. 1 is a partially enlarged cross-sectional view of a cylindrical hub used in the present invention, in which (a) shows a case having a horizontal surface H on both sides of a groove , and (b) shows a case having an inclined surface K.

FIG. 2 is a partially enlarged cross-sectional view of the cylindrical hub of the present invention with a tape wound.

3A and 3B are explanatory views of a tape, where FIG. 3A is a plan view and FIG. 3B is a side view.

FIG. 4 is a partially cutaway schematic sectional view of a conventional take-up reel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flange 2 Cylindrical hub 3 Tape insertion groove 4 Small ridge 10 Small electronic component 20 Storage pocket 30 Feed hole 40 Tape H Horizontal plane K Slope

Claims (1)

(57) [Scope of request for utility model registration] [Claim 1 further comprising a flange and a cylindrical hub, on both sides of the tape insertion groove provided in the cylindrical surface of the cylindrical hub and a horizontal plane or concave, the shoulder portion of the tape insertion groove, the winding direction of the tape
A carrier tape or a carrier-type taping tape take-up reel having a curved surface provided with a small ridge at a right angle .