JP5502631B2 - Reel for carrier tape of electronic parts and its half - Google Patents

Description

  The present invention relates to a reel for carrier tape of an electronic component obtained by sheet molding (vacuum molding, pressure molding, etc.) of a thin plastic sheet and a half of the reel.

  Conventionally, in order to store, transport, and supply minute electronic components, carrier tapes that are continuously provided with storage recesses have been widely used, and accordingly, reels for carrier tapes that wind this are also in various forms. A reel has been proposed. For example, there are aluminum integrals and plastic injection molding. However, these materials have problems such as expensive materials, complicated manufacturing processes and high manufacturing costs. In order to reduce the cost, a reel made of cardboard or other thick paper has been proposed, but there is a concern that paper dust is generated and adversely affects electronic components. Moreover, since these conventional reels are transported and carried in as finished products, they are bulky in transportation and storage, which is inconvenient.

  Therefore, a reel described in Patent Document 1 has been proposed as an inexpensive and relatively simple configuration. This reel is a thin plastic sheet of the same type with a side plate having a rib having a complicated shape, a projecting surface having a height of about 1/2 of the tape width, a shaft hole having a locking notch, etc. And the two halves are joined to each other by the projections and depressions that can be fitted to each other on the projecting surface to complete the reel.

  This type of reel has a low product cost due to its configuration, and when carrying and storing, if the protruding surfaces are stacked in the same direction, the protruding surfaces fit together and the bulk can be suppressed. And when a reel is configured, a reel having a winding core (hub) commensurate with the tape width between the side plates can be simply obtained by simply joining the protruding surfaces of a pair of halves facing each other. It can be obtained.

  However, since the reel having the above configuration may cause deformation, warpage, or deflection in the side plate portion depending on the accuracy at the time of sheet molding, the rotation of the reel becomes irregular due to this deflection or the like, and the carrier tape is wound or sent out. Inconvenience may occur.

  In addition, this type of reel has a shaft hole having a radial locking notch in which a drive shaft having a locking piece projecting around the shaft can be engaged. Since the shaft hole, especially the locking notch in which the locking piece is engaged, is applied to the shaft hole, especially when the drive shaft is started or stopped, the shaft hole or the locking notch However, there was a disadvantage that it was deformed or damaged.

  For this reason, as shown in Patent Document 2, the present applicant has proposed a reinforcing structure for this type of reel half halves. This is because the inner surface of the disk-shaped side plate has an outer edge of a predetermined width at the outer peripheral edge thereof, and ends with a circumferential rib, a rectangular rib is provided on the inner peripheral side, and the side plate A donut-shaped half-winding core portion is provided at a half height of the tape width, leaving a circular concave surface in the center, and a shaft hole having a locking notch radially formed in the circular concave surface. A halved carrier tape reel provided with an upright portion directed toward the inside of the side plate at an end, wherein one or more fine ribs are further provided along a circumferential direction on a projecting surface of the circumferential rib It is a half of a carrier tape reel that is formed to protrude.

  When the reel halves having such a structure are joined to each other to form a reel, the circumferential rib and the plurality of fine ribs provided on the projecting surface of the reel exert the function of maintaining the shape of the side plate constant. .

Japanese Utility Model Publication No. 60-85557 JP 2010-13229 A

  However, a reel formed by general sheet forming including the reel shown in Patent Document 1 has a high possibility that the shaft hole is deformed or damaged over time due to rotational torque because the strength of the shaft hole is not sufficient. It was. On the other hand, in the reel shown in Patent Document 2, since the arc-shaped rib and the shaft peripheral rib are provided around the shaft hole, the external strength can be expected considerably, but when joining the halves Therefore, strictness is required for the alignment of the shaft holes, and assembly accuracy is required.

  Therefore, completely different new means have been proposed as means for rotating the reel. That is, the reel is rotated by the method shown in FIG. In the rotating method shown in FIG. 4, a driving roller R2 (or an endless driving belt) may be disposed outside the reel R1, and the reel is rotated by bringing the outer peripheral end of the side plate of the reel R1 into contact with the driving roller R2. To do. In order to stabilize the rotation posture of the reel R1, it is effective to use a separate support roller R3 that rotates freely. Further, in order to stabilize the posture of the reel, it is preferable that both side plates are sandwiched from the outside by left and right support walls, or a round bar-shaped rotation shaft S is pivotally supported at the center of the side plate of the reel.

  Further, when using the reel, there are a case where the reel is used for winding the carrier tape and a case where the reel is used as a delivery side of the wound carrier tape. When used as the delivery side, that is, when there is a driving source by pulling on the side where the carrier tape wound around the reel is supplied, the reel R1 does not need to be rotated by the driving roller R2. It is only necessary to support it by a support roller so that it can freely rotate.

  According to such a reel rotation method, the conventional rotation method using the shaft hole as a rotation shaft is free from the disadvantages, and the reel can be used for a long time.

  However, even with this new rotation method, it is difficult to apply a conventional reel as it is. This is because in the conventional reel, the outer peripheral edge of the side plate has a low strength and may be easily deformed or damaged by the rotational contact with the drive roller (or support roller).

  The present invention has been devised to solve these problems, and a side plate having a strengthened outer peripheral edge is provided so that the side plate is not deformed or damaged even when rotated by contact with a drive roller or a support roller. It aims at providing the reel which has, and its half.

  The present invention has been made in order to solve the above-mentioned problems, and is a reel for a carrier tape of an electronic component having a pair of disk-like side plates at the left and right ends of a winding core, and each of the both side plates. A means of forming corrugated ribs having a predetermined width in the thickness direction of the entire circumference of the outer peripheral edge was adopted.

  In the reel having such a configuration, the corrugated ribs strengthen the outer peripheral edge of the side plate and prevent deformation.

  Further, a means was used in which a thin rib having a predetermined width was further provided on the entire inner circumference side of the corrugated rib on the inner side surface of each side plate.

  By this thin rib, the outer peripheral edge of the side plate is reinforced more firmly.

  And the corrugated rib or / and the thin rib employs a means of being intermittently provided at predetermined intervals along the outer peripheral edge.

  Even if the corrugated ribs and the thin ribs are provided intermittently, they are strengthened in the same manner as those provided on the entire circumference during rotation to prevent deformation.

  Furthermore, a means of providing a rectangular rib having a desired shape on the inner peripheral side from the thin rib was adopted.

  By providing rectangular ribs having a desired shape, the entire side plate is reinforced, and warpage and deflection are prevented to maintain a planar shape.

  On the other hand, as a half of a reel for carrier tapes of electronic parts, a half-winding core is provided at the center of the disk-shaped side plate at a height that is approximately half the tape width, and this half-winding core is joined oppositely. A half of a reel for carrier tape of an electronic component forming a reel, wherein corrugated ribs having a predetermined width are formed in the thickness direction of the entire circumference of the outer peripheral edge of the disk-shaped side plate. A means is adopted in which a thin rib is provided on the entire inner circumference side of the corrugated rib on the side surface, and a rectangular rib is provided on the inner circumference side.

  As the halved body forming the reel, corrugated ribs and fine ribs are provided, and further rectangular ribs are provided to reinforce the side plates of the reel to prevent deformation and to maintain flatness.

  And in the said half-divided body, the means that the said corrugated rib or / and a thin rib was intermittently provided in the outer periphery of the side plate at predetermined intervals was employ | adopted.

  Further, in the above half-split body, the half-winding core portion is a donut shape having a plurality of radial concave portions leaving a circular concave surface at the center of the inner side surface of the side plate, and having a height approximately half the tape width. We adopted the means that

  By adopting such a configuration as the half-winding core portion of the half-divided body, the half-winding core portion is strengthened and deformation is prevented.

  And the means of forming the reel for carrier tapes of an electronic component by joining two half halves of the reel for carrier tapes of the above-mentioned electronic component, and joining the above-mentioned half winding core parts facing each other was adopted.

  Since the carrier tape reel of the electronic component having the above configuration or the half of the reel has corrugated ribs or fine ribs provided on the side plate, the outer peripheral edge of the side plate is reinforced. Therefore, when the drive roller, the support roller, or the drive belt is brought into contact with the outer peripheral edge and driven to rotate, an excellent effect that the deformation or breakage of the portion does not occur can be expected. Thereby, it will endure long-term use.

  Further, since the end surfaces of the outer peripheral edges of the two side plates are each formed in a corrugated shape, the end surfaces are in surface contact with the driving roller and the like. Therefore, the contact area is increased, and the driving force can be reliably transmitted, or can be supported without being deformed or damaged.

  Further, since corrugated ribs, fine ribs, rectangular ribs, and the like are provided, warpage, deflection, deformation, and the like are prevented, and the flatness of the side plate is highly maintained. Therefore, since stable rotation can be obtained, the carrier tape can be smoothly wound and fed out.

  According to the reel having the above-described configuration, the reel can be rotated without using the shaft hole at the center of the reel. Therefore, the shaft hole that has been inconveniently damaged or deformed can be simplified. it can. Therefore, the structure becomes simple and can be provided at low cost.

  Moreover, since the half body is formed by sheet molding of a thin synthetic resin sheet, it becomes possible to manufacture the half body relatively easily, and the corrugated ribs, fine ribs, and rectangular ribs increase the strength. Therefore, even if the thickness of the synthetic resin sheet is thinner than that of the conventional one, it is possible to obtain a sufficient strength, save materials, and reduce the manufacturing cost.

1 is an overall perspective view of a half of a reel for carrier tape of an electronic component according to the present invention. It is the elements on larger scale of FIG. It is a fragmentary sectional view in the state where two pairs of halves were joined. It is explanatory drawing which shows the example of the rotation method of the reel for carrier tapes.

  Hereinafter, preferred embodiments of a reel for carrier tape of an electronic component and a half of the reel according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall perspective view of a half of a reel, and FIG. 2 is a partially enlarged view thereof. This half-divided body is obtained by forming a thin synthetic resin sheet into a shape described below by sheet molding (vacuum molding, pressure molding, etc.).

  In each figure, reference numeral 1 denotes a disk-shaped side plate, in which a corrugated rib 2 having a predetermined width from the end of the outer peripheral edge and having a predetermined period in the thickness direction of the entire periphery of the outer peripheral edge is formed. It is. That is, ribs that protrude alternately in the thickness direction of the front and back surfaces are continuously formed on the outer peripheral edge of the side plate 1. Reference numeral 3 denotes a thin rib provided on the inner peripheral side of the corrugated rib 2 and protrudes at a predetermined width and a predetermined interval over the entire inner peripheral surface of the outer peripheral edge portion of the side plate 1. Here, the inner side surface means a surface on the side facing the inside when the halves are joined to form a carrier tape reel for an electronic component. Since the corrugated rib 2 and the thin rib 3 on the inner side surface are formed over the entire circumference of the side plate 1, the outer peripheral edge of the side plate 1 is strengthened and the planar shape thereof is maintained, and bending, warping, and deformation are maintained. It is to prevent the occurrence of such.

  The corrugated rib 2 is provided continuously over the entire circumference of the outer peripheral edge in the illustrated embodiment, but may be provided intermittently at a predetermined interval. Moreover, although the said thin rib 3 is divided | segmented and provided in plurality by the predetermined space | interval, you may protrude endlessly over the perimeter.

  Reference numerals 4 and 4 are rectangular ribs having a predetermined shape protruding from the thin ribs 3 on the inner side surface of the side plate 1 to the inner peripheral side, and are provided symmetrically on the board surface. The rectangular plate 4 also reinforces the side plate 1 and maintains its flatness. However, the specific shape of the rectangular rib 4 is not particularly limited in the present invention. For example, radial or grid-like thin ribs may be formed in the portion, and a shape that maintains the flatness of the side plate 1 is selected. In addition, 5 and 5 are fan-shaped through-holes provided by punching symmetrically in the same manner, and the tape can be easily engaged with the radial recesses described below through the through-holes 5. The amount of winding can be visually confirmed. It also helps reduce the weight of the reel. In addition, although not shown in the drawings, an upright portion having a predetermined height is provided on the peripheral portion of the through hole 5, and a corrugated rib is formed on the upright portion as necessary to reinforce the entire side plate. There is also.

  6 is a half-winding core portion protruding in a donut shape leaving a circular concave surface 7 of a predetermined diameter at the center of the side plate 1, and the protruding height is higher than that of the thin rib 3 and the rectangular rib 4, It has a height at least half the width of the carrier tape to be wound. The half-winding core portion 6 is not formed in a continuous donut shape, but is divided into four by four radial concave portions 8 that are continuous with the circular concave surface 7, and is formed as a set of arcuate protruding portions 6a and 6a. . The reason why such a divided structure is adopted is that each of the concave portions 8 functions as a reinforcing rib, and it is possible to form a winding core having a higher strength in the axial direction than a continuous perfect circular shape. This is because the starting end of the carrier tape is engaged with 8 to facilitate winding. Although not shown in the drawings, a corrugated rib may be formed on the upright portion of the arcuate projecting portion 6a to further reinforce the half-winding core portion 6. Further, the number of divisions of the half-winding core portion 6 is not limited to four, and is appropriately selected according to the size of the reel. In addition, the structure of this half winding core part 6 is a secondary structure in this invention, and can employ | adopt the structure of various conventionally well-known winding core parts.

  Next, reference numeral 9 denotes a shaft hole penetrating through the center of the side plate 1, and a plurality (see FIG. 5) so that a drive shaft and a locking piece projecting around the shaft can be engaged. In this case, three locking notches 9a are provided radially around the periphery. The configuration of the shaft hole is also a secondary configuration in the present invention, and is not particularly limited.

  As shown in the partial cross-sectional view of FIG. 3, the half structure having the above-described structure joins the respective half-winding core portions 6 and 6 of the pair of half halves in the same manner as this conventional half-split body. Thus, the carrier tape reel is completed.

  The reel thus completed is used with a driving roller or a supporting roller in contact with the outer peripheral edge of the side plate with an appropriate pressure, as shown in FIG. That is, in this reel, the corrugated ribs 2 are formed on the outer peripheral edges of the two side plates, so that the end faces of the outer peripheral edges are each formed in a corrugated shape, and these end faces are in surface contact with the driving roller or the like. A rotational force is applied to the reel. For this reason, the contact area with the drive roller and the like is increased, the driving force is reliably transmitted, and the end surface portion is corrugated to be structurally strong, and the outer peripheral edge is deformed or damaged during contact rotation. There is no.

  Further, by providing further thin ribs, the outer peripheral edge of the side plate is reinforced more firmly and stable rotation can be obtained.

  In the above embodiment, the reel is configured by joining two pairs of halves. However, the present invention is not limited to this, and there is an existing one having a pair of disk-shaped side plates on the left and right ends of the winding core. In these various reels, the same effect can be obtained by forming corrugated ribs or fine ribs on the outer peripheral edge of the side plate. Further, the reel may be driven not by the drive roller shown in FIG. 4 but by driving an endless drive belt in pressure contact.

  Furthermore, if a pulling operation can be performed on the leading end side of the carrier tape, it is not necessary to directly apply a rotational driving force to the reel on the sending side, and it can be freely rotated on an appropriate support roller. It's okay. At this time, in order to stabilize the rotation of the reel and restrict unnecessary movement, it is only necessary to form a circular through-hole through which a round bar-shaped rotation shaft can be inserted at the center of the side plate, and this through-hole is not provided. In addition, the left and right side plates can be freely rotated on the support rollers so as to be sandwiched between appropriate support walls.

DESCRIPTION OF SYMBOLS 1 Side plate 2 Corrugated rib 3 Thin rib 4 Rectangular rib 5 Through-hole 6 Half-winding core part 6a Arc-shaped projecting part 7 Circular concave surface 8 Radial recessed part 9 Shaft hole 9a Locking notch

Claims (8)

  A reel for a carrier tape of an electronic component having a pair of disk-shaped side plates at both left and right ends of a winding core, wherein corrugated ribs having a predetermined width are formed in the thickness direction of the entire outer peripheral edge of each side plate. A reel for carrier tape of electronic parts characterized by the above.   The reel for carrier tapes of the electronic component of Claim 1 which provided the thin rib of predetermined width further along the perimeter of the inner peripheral side rather than the corrugated rib of the inner surface of each said side plate.   The reel for a carrier tape of an electronic component according to claim 2, wherein the corrugated rib and / or the thin rib are provided intermittently at predetermined intervals along the outer peripheral edge.   The reel for carrier tapes of the electronic component of Claim 2 or Claim 3 which further provided the rectangular rib of the desired shape in the inner peripheral side from the said thin rib.   A half-divided body of a reel for carrier tape of an electronic component in which a half-winding core portion is provided at the center of a disk-shaped side plate at a height approximately half the width of the tape, and the half-winding core portions are oppositely joined to form a reel. The corrugated rib having a predetermined width is formed in the thickness direction of the entire circumference of the outer peripheral edge portion of the disk-shaped side plate, and the thin rib is formed on the entire inner circumference side of the corrugated rib on the inner side surface of the side plate. And further, a rectangular rib is provided on the inner peripheral side thereof.   6. The half of a carrier tape reel for electronic parts according to claim 5, wherein the corrugated ribs and / or thin ribs are provided intermittently at predetermined intervals along the outer peripheral edge of the side plate.   6. The half-winding core portion is a donut shape having a plurality of radial recesses leaving a circular concave surface at the center of the inner surface of the side plate, and having a height approximately half the tape width. 6. A half of the reel for carrier tape of electronic component according to 6.   An electron formed by joining two halves of a carrier tape reel of an electronic component according to any one of claims 5 to 7 and joining the half cores facing each other. Reel for parts carrier tape.

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