JP2000038258A - Winding reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding reel capable of being assembled simply and having high dimensional accuracy. SOLUTION: A groove is formed on an inner peripheral face of a ring member 1 for winding a tapelike film B, and a core member 2 having a projection at outer periphery and a shaft hole provided in a target device at the center is fitted therein. Clawlike projections 4 are formed at three sections on circumference centered on a shaft hole 3a of a flange 3, and an engaging hole is formed in a position corresponding to the clawlike projection 4 of the core member 2. A columnlike projection is formed at at least one section of the flange 3, and a fitting hole in which the columnlike projection is fitted is formed in the core member 2. The core member 2 is fitted into the ring member 1, and the flanges 3 are connected to side faces of the core member 2, respectively, by engaging the clawlike projection 4 with the engaging hole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reel for winding a tape-shaped film, and more particularly to a reel which can be assembled without using an adhesive or a double-sided tape.

[0002]

2. Description of the Related Art A wide variety of tape-shaped films are provided on the market, and most of them are distributed and used while being wound on a reel. Therefore, various reels are used in consideration of the properties and dimensions of the film to be wound, the manufacturing process, convenience in use, and the like.

[0003] A general reel (for example, a recording tape or a recording tape) is pre-assembled with a core material for winding a film and flanges disposed on both sides of the core material. And is wound around a core material integrated with the flange.

[0004] For example, when a special film used for manufacturing an electronic component is required to have a high winding accuracy, the film may be wound on a reel assembled in advance.
A problem that a space is formed between a pair of flanges and a core material, or a film that has already been wound and a film that is currently wound, and an air layer existing in this space hinders the winding operation. When a slight blur occurs during running, there is a problem that winding cannot be performed in a good state, and the winding accuracy decreases.

For this reason, a flange and a core material are provided as separate parts, a special film is wound on the core material, and a flange is attached to the core material to form a reel. In this case, an adhesive is applied or a double-sided tape is attached to both sides of the core material on which the film has been wound in advance, and then,
Generally, a flange is bonded to the core material or fixed by means such as ultrasonic fusion.

[0006]

As described above, when assembling a reel by bonding a flange to a core material on which a film has been wound in advance, a process of applying an adhesive to the core material or a process of attaching a double-sided tape is required. Alternatively, there is a problem that the ultrasonic fusion process is required and the manufacturing process becomes complicated. In particular, when an adhesive is used, there is a possibility that stains due to the adhesion are generated and the film is adversely affected.

An object of the present invention is to provide a take-up reel which has a simple process and does not affect the wound film due to dirt.

[0008]

In order to solve the above-mentioned problems, a take-up reel (hereinafter, simply referred to as "reel") according to the present invention comprises a ring member for winding a tape-shaped film, and a ring member. And a pair of flanges disposed on both side surfaces of the ring member fitted with the core member, and at least three of the flange or the core member have claw-shaped protrusions. And an engaging hole for engaging with the claw-shaped projection is formed on the other side, and the core member and the flange fitted to the ring member are joined by engaging the claw-shaped projection with the engagement hole. It is configured.

In the above reel, a core member is fitted to a ring member on which a tape-shaped film is wound, and further, flanges are arranged on both sides of the core member, and claw-shaped projections formed on the flange and the core member. And the engagement hole to engage with each other. As described above, since the reel is assembled by mechanically joining the claw-shaped projection and the engagement hole, it is possible to maintain high accuracy and exhibit stable strength. In addition, since the assembly can be performed without using an adhesive or a double-sided tape, a bonding step can be omitted and a reel having no contamination can be formed.

In the reel, it is preferable that a columnar projection is formed in at least one of one of the flange and the core member, and a fitting hole for fitting the columnar projection is formed in the other. When a gap is formed between the claw-shaped projection and the engagement hole by configuring the reel in this manner,
It is possible to prevent rattling that may occur between the core member and the flange due to the gap.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the reel will be described below with reference to the drawings. 1 is a diagram illustrating a reel, FIG. 2 is a diagram illustrating a ring member, FIG. 3 is a diagram illustrating a core member, and FIG. 4 is a diagram illustrating a flange.

A reel A shown in the figure has a ring member 1 formed in a ring shape for winding a tape-like film B.
A core member 2 fitted to the ring member 1 to transmit a driving force to the ring member 1, and a core member 2 arranged on both sides of the core member 2 fitted to the ring member 1 and mechanically connected to the core member 2. It is constituted by two flanges 3 to be connected. Each of the members 1 to 3 is formed as a molded product of a synthetic resin.

The reel A is not connected by using an adhesive or a double-sided tape. For this reason, after unwinding all the films B wound on the ring member 1 in advance, the core member 2
By releasing the connection between the and the flange 3, it is possible to disassemble it into a plurality of components, and it is also possible to disassemble in this way and reuse it.

The reel A according to the present invention does not particularly limit the film to be wound. That is, the present invention can be applied to a film such as a recording tape or a recording tape, which achieves a purpose by repeatedly performing winding and rewinding, and a special film used as a material when manufacturing electronic components. is there.

In the present embodiment, an anisotropic conductive film (Anisotro film) is used as the tape-shaped film B wound around the reel A.
pic Conductive Film, ACF).
The reel A suitable for the ACF will be described. ACF
Is a film that has conductivity in the thickness direction by pressure bonding and has insulating properties in the plane direction, and is used for, for example, a liquid crystal display or a plasma display.

The ACF is wound on a reel in a state of being laminated on a film called a separator, or in a state in which a cover film is further laminated on the film.
The ACF has a width of 1 mm to 2 mm and a thickness of 15 μm to 50 μm when laminated on the separator. That is, ACF
Has extremely delicate dimensions and, in use,
It is mounted on a predetermined device and rewinded at high speed.

Next, the configuration of the reel A will be specifically described. In the figure, a ring-shaped member 1 is for winding a tape-shaped film B,
Is formed as a cylindrical surface so that it can be smoothly wound. The ring member 1 has a width (thickness) substantially equal to the width of the film B, and the inner diameter is formed with a fitting tolerance so that the core member 2 can be easily fitted. .

The ring member 1 is fitted with the core member 2 in a state where the film B has been wound on the outer peripheral surface in the previous step and the reel A
Is configured. When using the film 2, the film B is mounted on a predetermined device and the film B is rewound. At this time,
In the case where only the ring member 1 rotates to rewind the film B, the rewinded film B may come into contact with the flange 3 or the film B may be unwound excessively due to inertia at the time of rewinding. May occur. For this reason, it is preferable that the ring member 1 and the core member 2 are configured to transmit the driving force.

In this embodiment, a plurality of concave grooves 1a are formed on the inner peripheral surface of the ring member 1. The groove 1a is engaged with a projection 2b formed on the outer periphery of the core member 2 described later to transmit a driving force transmitted from a device (not shown) through a hole 2a formed in the core member 2.

The core member 2 is fitted to the ring member 1 and has flanges 3 connected to both side surfaces. The core member 2 has a width (thickness) substantially equal to that of the ring member 1, and a shaft hole 2a used when the core member 2 is mounted on a device (not shown) is formed at the center. A plurality of protrusions 2b that engage with the concave grooves 1a are formed.

When the flange 3 is connected to the side surface of the core member 2, claw-like projections (claw-like projections) are formed on at least three places of either the core member 2 or the flange 3, and the claw-like projections are formed on the other side. Is formed by engaging a claw-shaped projection into the engagement hole and locking it. That is, the claw-shaped projections and the engagement holes only need to have a function of firmly connecting the core member 2 and the flange 3. Therefore, the claw-shaped projections and the engagement holes may be formed in any member.

The flanges 3 are arranged on both side surfaces of the core member 2 fitted to the ring member 1 and are coupled to the core member 2 by the engagement of the claw-like projections and the engagement holes.
The film B wound around the ring member 1 is configured to be able to regulate both sides in the width direction. For this reason, a shaft hole 3a to be mounted on a target device is formed in the flange 3 at a position corresponding to the shaft hole 2a formed in the core member 2.

In the present embodiment, a claw-shaped projection 4 is formed on the flange 3 and an engaging hole 5 penetrating in the thickness direction is formed on the core member 2. By forming the claw-shaped projections 4 and the association holes 5 in this manner, when the flange 3 is connected to the side surface of the core member 2, the claw-shaped projections 4 do not protrude outside the reel A, and the target device can be used. It can be mounted smoothly. However, even when the claw-shaped protrusions 4 are formed on the core member 2 and the engagement holes 5 are formed on the flange 3, both can be connected.

The claw-shaped projections 4 are formed at three locations on the circumference with a predetermined radius and at the same angular interval around the axis of the shaft hole 3a of the flange 3. The claw-shaped protrusions 4 formed on the flange 3 need to be formed in at least three places.

The fitting hole 5 is formed around a shaft hole 2 a of the core member 2, and a single flange 3 is formed on the circumference where the claw-shaped projections 4 are formed.
Are formed in multiples of the claw-shaped projections 4 formed on the substrate. Therefore, in the present embodiment, the fitting holes 5 are formed at six places in the core member 2. In this way, by forming the fitting hole 5 of the core member 2 as a multiple of the claw-shaped projection 4, it is possible to eliminate the difference in the hand of the flange 3 and reduce the number of parts.

The claw-shaped projection 4 is engaged with the edge of the engaging hole 5 and is locked. The claw-shaped projection 4 is formed upright from the main body of the flange 3 in a cantilever shape. When mated,
It has a sufficient size to engage with the edge of the fitting hole 5 with high strength. When the claw-shaped projections 4 are fitted into the fitting holes 5, the claw-shaped projections 4 bend in a direction away from the engagement holes 5. Therefore, the fitting hole 5 is formed to have a dimension sufficiently larger than the cross-sectional dimension of the claw-shaped projection 4.
For this reason, when the claw-shaped projections 4 are engaged with the engagement holes 5, a gap is formed between them so as to be able to absorb the bending of the claw-shaped projections 4. Play may occur between the flange 3 and the flange 3.

At least one of the core member 2 and the flange 3 is provided with one of the core member 2 and the flange 3 in order to prevent the above-mentioned rattling and to improve the coupling accuracy between the core member 2 and the flange 3 (the accuracy of the reel A).
A columnar projection (columnar projection) is formed at a location, and a fitting hole that fits with the columnar projection is formed on the other side, and the columnar projection is fitted into the fitting hole. Regardless of the size of the gap formed between the holes 5, the configuration is such that the accuracy when the core member 2 and the flange 3 are coupled can be guaranteed.

In the present embodiment, the columnar projections 6 are formed at two places of the flange 3 and fitting holes 7 having a multiple (four places) of the columnar projections 6 are formed in the core member 2. However, even if the columnar projection 6 is formed on the core member 2 and the fitting hole 7 is formed on the flange 3, it is possible to connect the core member 2 and the flange 3 in exactly the same manner.

Next, an example of a procedure for forming the reel A will be briefly described. The film B is supplied in a state in which it is wound on the ring member 1 in advance.

First, the core member 2 is attached to the inner peripheral portion of the ring member 1.
Is fitted. At this time, the projection 2b formed on the core member 2 is engaged with the concave groove 1a formed on the ring member 1, and the flange 3 is connected to one side surface of the core member 2 fitted on the ring member 1. Let it. Alternatively, the claw-shaped protrusions 4 of one flange 3 may be engaged with the engaging holes 5 of the core member 2 to be coupled, and the ring member 1 may be fitted to the core member 2 in this state. Next, the remaining flange 3 is joined to the other side surface of the core member 2 to complete the reel A.

In the reel A constructed as described above, the flange 3 protects the film B wound on the ring member 1 during the distribution process, and the reel A is mounted on a target device to rewind the film B. In this case, the film B fed out by the flange 3 can be guided.

In the above-described embodiment, the reel A in which the tape-like film B is wound on the ring member 1 has been described. However, the present invention is not limited to this configuration.
After assembling the reel A, the film B may naturally be wound up. That is, whether to wind the film B before assembling the reel A or to wind it after assembling is a matter of convenience.

[0033]

As described in detail above, the reel according to the present invention has a ring member for winding a tape-shaped film, a core member fitted to the ring member, and two flanges. Since at least three of the core member or the flange have claw-shaped projections and an engagement hole for engaging with the claw-shaped projections at a position facing the other claw-shaped projections, It can be configured by mechanically connecting the claw-shaped projection and the fitting hole without going through a process such as an agent or ultrasonic fusion. For this reason, there is no possibility that stains due to the adhesive are generated, and the manufacturing process can be simplified.

When a pillar-shaped projection is formed on one of the core member or the flange and a fitting hole for fitting the pillar-shaped projection is formed on the other, a formation is made between the claw-shaped projection and the engaging hole. Irrespective of the size of the gap provided, the coupling accuracy between the core member and the flange can be improved, and a highly accurate reel can be configured.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a reel.

FIG. 2 is a diagram illustrating a ring member.

FIG. 3 is a diagram illustrating a core member.

FIG. 4 is a diagram illustrating a flange.

[Explanation of symbols]

 Reference Signs List A reel B film 1 ring member 1a concave groove 2 core member 2a, 3a shaft hole 2b protrusion 3 flange 4 claw-like protrusion 5 engaging hole 6 columnar protrusion 7 fitting hole

Claims (2)

[Claims] 1. A ring member for winding a tape-shaped film, a core member fitted to the ring member, and a ring member arranged on both side surfaces of the ring member fitted with the core member.
A plurality of flanges, wherein at least one of the flange and the core member has claw-shaped protrusions, and the other has an engagement hole for engaging with the claw-shaped protrusions, and is fitted to the ring member. A take-up reel, wherein the combined core member and flange are joined by engaging a claw-shaped projection with the engagement hole. 2. The fitting according to claim 1, wherein a columnar projection is formed in at least one of the flange and the core member, and a fitting hole for fitting the columnar projection is formed in the other. Take-up reel.