JP7022408B2 - Shape holder for solder wire coil - Google Patents

Description

The present invention relates to a shape-retaining tool for a solder wire coil that retains the shape of the solder wire coil formed by winding the solder wire in a cylindrical shape.

Conventionally, a cylindrical wire coil made of a solder wire winder is sold in a state of being wound around a resin shape holder called a bobbin so that it can be easily handled while maintaining its shape. , Used (see, for example, Patent Document 1).

Further, in a solder wire coil fixture provided with a tubular core material to which a cylindrical solder wire coil is attached and a pair of flange portions in which the core material is interposed, at least one flange portion is provided. The solder wire coil fixture is configured to be removable and can be attached to the solder wire coil by inserting the core material into the center hole of the solder wire coil with the flange portion removed. It is known (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 10-113767 Registered Utility Model No. 3199234

By the way, as described in Patent Document 1, in the case where the solder wire coil is held in the bobbin, it is necessary to dispose of the unnecessary resin bobbin as waste after using the solder wire coil. , There were problems with resource utilization and reprocessing.

Further, in the solder wire coil mounting tool described in Patent Document 2, after using the solder wire coil, a new solder wire coil can be mounted with one flange portion removed from the tubular core body material. Therefore, it is possible to reuse the fixture. On the other hand, when mounting a new solder wire coil on the mounting tool, it is necessary to insert the core material of the mounting tool into the center hole of the solder wire coil, which causes a problem that this work is complicated.

That is, in order to keep the solder wire coil in the proper state in the fixture, it is necessary to accurately correspond the inner diameter of the solder wire coil wound in a cylindrical shape with the outer diameter of the core material. If the inner diameter of the solder wire coil becomes smaller than the outer diameter of the core material due to an error, a large force is required when inserting the core material of the fixture into the center hole of the solder wire coil. Moreover, the inner diameter of the solder wire coil is expanded by the core material of the fixture, and the winding state of the solder wire is easily disturbed, which is problematic in terms of versatility. In addition, when the core material of the mounting tool is inserted into the center hole of the solder wire coil, the inner surface of the center hole rubs against the mounting tool and the solder wire on the inner surface of the center hole is damaged. There was a risk of damage and defective solder wires.

In order to facilitate the work of inserting the core material of the fixture into the center hole of the solder wire coil, it is conceivable to set the outer diameter of the core material smaller than the inner diameter of the solder wire coil in advance. In this case, when the core material of the fixture is inserted into the center hole of the solder wire coil and the fixture is attached to the solder wire coil, rattling is likely to occur, and the solder wire coil is in a stable holding state. There was a problem that it could not be obtained. In particular, when the inner diameter of the solder wire coil becomes larger than the outer diameter of the core body material due to a manufacturing error, a large gap is formed between the center hole of the solder wire coil and the core body material of the fixture, which is remarkable. It was inevitable that rattling would occur.

An object of the present invention is that even when a manufacturing error occurs in the solder wire coil or the shape holder in which the solder wire is wound in a cylindrical shape, the solder wire coil can be easily attached and the solder wire is defective. It is an object of the present invention to provide a shape-retaining tool for a solder wire coil capable of reducing the possibility of occurrence.

The shape-retaining tool for the solder wire coil according to one aspect of the present invention is a shape-retaining tool for the solder wire coil in which the solder wire is wound in a cylindrical shape, and has a tubular shape inserted into the center hole of the solder wire coil. A first shape-retaining member having an outer core body and a first flange portion covering one end surface of the solder wire coil, an inner core body inserted into the outer core body, and the other end surface of the solder wire coil. It has a second shape-retaining member provided with a second flange portion that covers the first shape-retaining member, and a slit extending in the axial direction thereof is formed in the outer core body of the first shape-retaining member. At least a part is separated into a plurality of divided pieces.

It is a perspective view which shows the state which the shape holder of the solder wire coil which concerns on 1st Embodiment of this invention is seen from diagonally below. It is sectional drawing of the shape-retaining tool shown in FIG. It is a perspective view of the 1st shape-retaining member constituting the shape-retaining tool shown in FIG. It is a bottom view of the first shape-retaining member shown in FIG. It is a perspective view of the 2nd shape-retaining member constituting the shape-retaining tool shown in FIG. It is an enlarged view of the locking portion shown in FIG. 5A. It is a perspective view which shows the state which the shape holder shown in FIG. 1 is temporarily assembled. It is an enlarged view of the locking portion and the engaged portion shown in FIG. 6A. It is a perspective view which shows the specific structure of the solder wire coil held by the shape-retaining tool shown in FIG. It is sectional drawing which shows the concrete structure of the solder wire coil shown in FIG. 7. It is sectional drawing which shows the state which inserted the outer core body of the 1st shape-retaining member into the center hole of a solder wire coil. It is sectional drawing which shows the state which held the solder wire coil in the shape holder shown in FIG. It is a perspective view which shows the specific structure of the 1st shape-retaining member which constitutes the shape-retaining tool which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the specific structure of the 2nd shape-retaining member which constitutes the shape-retaining tool which concerns on the 2nd Embodiment of this invention. FIG. 3 is a perspective view showing a state in which the first shape-retaining member shown in FIG. 11 and the second shape-retaining member shown in FIG. 12 are connected. It is a front view which shows the state which disassembled the shape-retaining tool of the solder wire coil which concerns on 3rd Embodiment of this invention into the 1st shape-retaining member and the 2nd shape-retaining member. 14 is a front view and a side view showing a specific structure of a locking portion provided on the second shape-retaining member shown in FIG. It is a front view which shows the assembly state of the shape-retaining tool shown in FIG. It is a perspective view which shows the specific structure of the 1st shape-retaining member which constitutes the shape-retaining tool of the solder wire coil which concerns on 4th Embodiment of this invention. It is a perspective view of the shape holder of the solder wire coil shown in FIG. It is a perspective view of the state where the shape holder of the solder wire coil shown in FIG. 18 is attached to the solder wire coil. It is a front view of the shape retaining tool of the solder wire coil shown in FIG. It is a rear view of the shape holder of the solder wire coil shown in FIG. FIG. 18 is a right side view of the shape holder of the solder wire coil shown in FIG. It is a left side view of the shape holder of the solder wire coil shown in FIG. It is a top view of the shape holder of the solder wire coil shown in FIG. It is a bottom view of the shape holder of the solder wire coil shown in FIG. FIG. 20 is a sectional view taken along line AA of the shape-retaining tool for the solder wire coil shown in FIG. FIG. 24 is a sectional view taken along line BB of the shape-retaining tool for the solder wire coil shown in FIG. 24.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. It should be noted that the configurations with the same reference numerals in the respective figures indicate that they are the same configurations, and the description thereof will be omitted.

FIG. 1 is a perspective view showing a state in which the shape-retaining tool 10 of the solder wire coil according to the first embodiment of the present invention is viewed from diagonally below, and FIG. 2 is a cross-sectional view of the shape-retaining tool 10. FIG. 3 is a perspective view showing a state in which the first shape-retaining member 1 constituting the shape-retaining tool 10 of the solder wire coil according to the first embodiment is viewed from diagonally above, and FIG. 4 is a perspective view showing the first shape-retaining member. It is a bottom view which shows the state which 1 was seen from the bottom. FIG. 5A is a perspective view of the second shape-retaining member 2 constituting the shape-retaining tool 10 of the solder wire coil according to the first embodiment. FIG. 5B is an enlarged view of the locking portion shown in FIG. 5A. FIG. 6A is a perspective view showing a state in which the shape-retaining tool 10 of the solder wire coil according to the first embodiment of the present invention is temporarily assembled. FIG. 6B is an enlarged view of the locking portion and the engaged portion shown in FIG. 6A.

As shown in FIGS. 3 and 4, the first shape-retaining member 1 includes a cylindrical outer core body 11 having a substantially circular cross-sectional shape and a first flange provided at a base end portion of the outer core body 11. It is provided with a unit 12. The first shape-retaining member 1 can be made of a material having predetermined rigidity and appropriate elasticity, such as nylon, polyurethane, fluororesin, vinyl, and PTFT. The first shape-retaining member 1 is appropriately molded by means such as injection molding using an injection molding machine, cutting processing using a cutting machine, or modeling processing using a 3D printer. It is also possible to form the first shape-retaining member 1 with a metal material or the like.

As will be described later, the outer core body 11 of the first shape-retaining member 1 has a total length L1 slightly longer than the axial dimension of the solder wire coil formed by winding the linear solder in a cylindrical shape, and has a total length L1 of the solder wire coil. It is formed in a cylindrical shape having an outer diameter D substantially the same as the diameter of the center hole, and is configured to be inserted into the center hole of the solder wire coil. Further, a tapered surface 13 having a narrowed tip is formed on the outer periphery of the tip portion of the outer core body 11.

In the outer core body 11 of the first shape-retaining member 1, three slits 14 having a predetermined width dimension W1 are formed over the entire length in the axial direction of the outer core body 11. The slit 14 separates the outer core 11 into three divided pieces 15 having an arcuate cross-sectional shape.

The first flange portion 12 of the first shape-retaining member 1 is formed in a disk shape having an outer diameter substantially equal to the outer diameter dimension of the solder wire coil, so that one end surface thereof is held when the solder wire coil described later is held. It is configured to cover. At the center of the first flange portion 12, a circular through hole 16 having a diameter slightly larger than the outer diameter of the inner core body 21 provided in the second shape-retaining member 2 is formed.

Further, as shown in FIG. 4, the first flange portion 12 is provided with three U-shaped openings 17 for communicating the outer peripheral portion of the through hole 16 and the slit 14 of the outer core body 11. .. A concave groove in which the locking portion 26 provided on the second shape-retaining member 2 is engageable and disengaged in one side portion of the opening 17, that is, a portion located on the counterclockwise side in FIG. Each of the engaged portions 18 is formed (see FIGS. 6A and 6B).

As shown in FIG. 5A, the second shape-retaining member 2 includes a cylindrical inner core body 21 inserted into the outer core body 11 of the first shape-retaining member 1 and a second shape-retaining member 2 provided at a base end portion thereof. It is provided with a flange portion 22. The second shape-retaining member 2 is appropriately molded by the same material and processing method as the first shape-retaining member 1.

The inner core body 21 of the second shape-retaining member 2 is configured to be externally fitable to, for example, a solder support shaft provided in a solder supply device (not shown) by setting the inner diameter thereof to a predetermined value. Further, the total length L2 of the inner core body 21 is the length excluding the tip portion of the outer core body 11 fitted into the concave groove 29 described later from the total length L1 of the outer core body 11, and the plate thickness of the first flange portion 12. It is set to the value obtained by adding T (see FIG. 2).

On the outer peripheral surface of the inner core body 21, three ridges 23 corresponding to the slits 14 formed in the outer core body 11 of the first shape-retaining member 1 are radially projected. The ridge 23 is formed over substantially the entire length direction of the inner core body 21 by setting the total length thereof to be substantially equal to the total length L2 of the inner core body 21. Then, when the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1 and assembled, the outer peripheral portion of the ridge 23 is formed in the slit 14 of the outer core body 11. The positions and dimensions of the ridges 23 are set so that they can be inserted.

Further, the inner core body 21 is provided with three reinforcing pieces 24 which are arranged between the ridges 23 and 23 adjacent to each other and which project radially from the outer peripheral surface of the inner core body 21. .. The reinforcing piece 24 can be inserted into the outer core body 11 of the first shape-retaining member 1 by setting its outer diameter to a value slightly smaller than the inner diameter of the outer core body 11 of the first shape-retaining member 1. A tapered surface 25 having a narrowed tip is formed at the tip of the reinforcing piece 24. The slightly small value means, for example, a value as small as about 0.1 mm to 5 mm, more preferably a value as small as about 0.1 mm to 2.5 mm.

The total length of the reinforcing piece 24 is set shorter than the total length L2 of the inner core body 21 by a predetermined length, and is formed in a region excluding the tip end side portion of the inner core body 21. As a result, when the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1 and assembled, the tip of the reinforcing piece 24 is the inner wall surface of the first flange portion 12. It is configured so as not to come into contact with.

A locking portion 26 is projected from the outer end portion of the ridge 23 toward one side, that is, in the counterclockwise direction of FIG. 6A, and a bulge having a semicircular cross-sectional shape is provided on the back surface thereof. A protrusion 27 is provided. As will be described later, the bulging portion 27 is press-fitted and engaged with the engaged portion 18 of the first shape-retaining member 1, so that the second retaining portion 27 is inside the outer core body 11 of the first shape-retaining member 1. The assembled state of the shape holder 10 into which the inner core body 21 of the shape member 2 is inserted is maintained.

The width dimension W2 consisting of the tip width dimension of the ridge 23, that is, the value obtained by adding the protrusion amount of the locking portion 26 and the plate thickness of the ridge 23, is a slit formed in the outer core body 11 of the first shape-retaining member 1. It is set to be slightly smaller than the width dimension W1 of 14 (see FIG. 3).

As a result, the tip end portion of the ridge 23 including the locking portion 26 can be inserted into the slit 14 and the opening portion 17 of the first shape-retaining member 1 to shift to the temporary assembly state shown in FIG. 6A. It has become. In this temporarily assembled state, the tip surface of the ridge 23 and the outer wall surface of the first flange portion 12 of the first shape-retaining member 1 are configured to be flush with each other (see FIG. 2).

Then, when the second shape-retaining member 2 is rotated counterclockwise in FIG. 6A from the temporarily assembled state, the bulging portion 27 of the locking portion 26 causes the engaged portion 18 of the first shape-retaining member 1 to be engaged. It is press-fitted into the constituent concave groove and locked. As a result, both the members 1 and 2 are maintained in the assembled state (see FIG. 1) in which the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1. ..

Further, from the assembled state, the second shape-retaining member 2 is rotated clockwise in FIG. 1, and the bulging portion 27 of the locking portion 26 is moved to the outside of the engaged portion 18 of the first shape-retaining member 1. When it is moved, the engaged state of the locking portion 26 is released (see FIG. 6A). In this state, by pulling the inner core body 21 of the second shape-retaining member 2 so as to be pulled out from the outer core body 11 of the first shape-retaining member 1, the first shape-retaining member 1 and the second shape-retaining member 2 Can be separated.

The second flange portion 22 of the second shape-retaining member 2 is formed in a disk shape having an outer diameter substantially equal to the outer diameter dimension of the solder wire coil, similarly to the first flange portion 12 of the first shape-retaining member 1. As a result, it is configured to cover the other end faces when the solder wire coil, which will be described later, is held.

A through hole 28 communicating with the central hole of the inner core body 21 is formed in the central portion of the second flange portion 22 (see FIG. 2). Further, on the inner wall surface of the second flange portion 22, the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1, and the outer core body 11 is assembled. An arcuate concave groove 29 into which the tip portion of the above is fitted is formed (see FIGS. 2 and 5A).

7 and 8 are perspective views and cross-sectional views showing a specific configuration of the solder wire coil H held by the shape holder 10. FIG. 9 is a cross-sectional view showing a state in which the outer core body 11 of the first shape-retaining member 1 is inserted into the center hole H11 of the solder wire coil H, and FIG. 10 shows the solder wire coil H being inserted into the shape-retaining tool 10. It is sectional drawing which shows the held state.

The solder wire coil H includes a coil main body portion H1 formed in a cylindrical shape by winding a solder wire, a coating film H2 covering the outer surface thereof, and one end surface side of the solder wire coil H, FIGS. 7 and 7. In the example shown in 8, a substantially circular label H3 attached to the upper surface of the coating film H2 covering the upper surface side of the solder wire coil H is provided.

The coating film H2 and the label H3 are formed with openings H21 and H31 corresponding to the upper openings of the central hole H11 formed in the coil main body H1, respectively. Further, the covering film H2 is formed with an opening H32 corresponding to the lower opening of the central hole H11. In order to make the anti-slip function wait when the solder wire coil H is gripped and carried by inserting a finger into the center hole H11 of the coil main body portion H1, the diameters of the openings H21 and H32 of the coating film H2 are adjusted. It is desirable that the diameter is smaller than the diameter of the central hole H11 of the coil main body H1.

The coating film H2 can be formed by using, for example, a heat-shrinkable film. Specifically, for example, a heat-shrinkable film formed in a cylindrical shape is heated and heat-shrinked in a state of being fitted onto the coil body H1 to form a coating film H2 that covers the outer surface of the coil body H1. can do.

Examples of the heat-shrinkable film material for the coating film H2 include positive vinyl chloride (PVC), polypropylene (PP), polyethylene (PE), polystyrene (PS), polyolefin (PO), polyethylene terephthalate (PET), and polyvinyl chloride (PC). ), Ethylene-vinyl alcohol copolymer (EVA) and the like, two layers such as PET / PET and PP / PE, and various heat-shrinkable materials in which the above-mentioned materials are combined in multiple layers can be used.

As the label H3 of the solder wire coil H, various materials made of, for example, a sheet-like body such as paper or a resin sheet can be used. On the surface of the label H3, various information including the manufacturer name, a symbol indicating the model and material of the solder wire, the thickness of the solder wire, the weight of the solder wire coil H, the lot number, etc. is described. ..

In order to hold the solder wire coil H having the outer surface covered with the coating film H2 and the label H3 attached to the upper surface thereof by the shape holder 10 as described above, first, the center thereof is from the lower side of the coil main body H1. The outer core body 11 of the first shape-retaining member 1 is inserted into the hole H11, and the solder wire coil H is held by the outer core body 11 of the first shape-retaining member 1 as shown in FIG.

In the solder wire coil H in which the diameters of the openings H21 and H32 of the coating film H2 are smaller than the diameter of the center hole H11 of the coil body H1, the center hole H11 is formed from the lower side of the coil body H1. When the outer core body 11 of the first shape-retaining member 1 is inserted, the coating film H2 located around the openings H21 and H32 is pushed into the central hole H11 of the coil main body portion H1 by the outer core body 11. become.

Next, as shown in FIG. 10, the inner core body 21 of the second shape-retaining member 2 is inserted into the center hole H11 from the upper side of the solder wire coil H, and the outer peripheral portion of the ridge 23 is formed into the first-retaining shape. By inserting it into the slit 14 of the member 1, the inner core body 21 of the second shape-retaining member 2 is pushed into the outer core body 11 of the first shape-retaining member 1.

Then, the second shape-retaining member 2 is moved to a temporarily assembled state in which the tip surface of the locking portion 26 and the outer surface of the first flange portion 12 of the first shape-retaining member 1 are flush with each other. After pushing the inner core body 21 into the outer core body 11 of the first shape-retaining member 1, for example, the second shape-retaining member 2 is rotated counterclockwise in FIG. 6A to rotate the second shape-retaining member 2 to the second shape-retaining member 2. The locking portion 26 of the above is engaged with the engaged portion 18 of the first shape-retaining member 1 (see FIG. 1).

In this way, the solder wire coil H is held by the outer core body 11 of the first shape-retaining member 1, and both ends of the solder wire coil H are held by the first and second flange portions 12 and 22 of the shape-retaining tool 10. The solder wire coil H is supported together with the shape holder 10 on, for example, a solder support shaft provided in a solder supply device (not shown) in a state of covering and protecting the solder wire coil H. Then, the soldering work can be performed by feeding out the solder wire coil from the outer core body 11 as needed.

As described above, the tubular outer core 11 inserted into the center hole H11 of the solder wire coil H in which the solder wire is wound in a cylindrical shape, and the first flange portion 12 covering one end surface of the solder wire coil H. A first shape-retaining member 1 provided with, an inner core body 21 inserted into the outer core body 11, and a second shape-retaining member 2 provided with a second flange portion 22 covering the other end surface of the solder wire coil H. According to the shape-retaining tool 10 of the solder wire coil H having the above, the solder wire coil H can be easily and stably held in shape even when a manufacturing error occurs in the solder wire coil H or the shape-retaining tool 10. ..

Therefore, it is possible to properly perform the work of feeding out the solder wire from the solder wire coil H and soldering it while the solder wire coil H protected by the shape holder 10 is supported by the solder supply device (not shown). .. Moreover, it is possible to effectively prevent the occurrence of a situation in which the solder wire coil H is disturbed when the solder wire coil H is used or the like.

Then, when the solder wire coil H is used up, or when the solder wire coil H is replaced with another type of solder wire coil H, the first shape-retaining member 1 and the second shape-retaining member 2 are separated into the shape-retaining tool 10. Since the new solder wire coil H can be easily mounted, the shape-retaining tool 10 of the solder wire coil H can be reused as many times as necessary.

That is, a slit 14 extending in the axial direction is formed in the outer core body 11 of the first shape-retaining member 1, and the outer core body 11 is separated into a plurality of divided pieces 15 by the slit 14, so that the first shape-retaining member 1 Even when the outer core body 11 of 1 is formed of a material having a predetermined rigidity, when the outer core body 11 is inserted into the center hole H11 of the solder wire coil H, the base end portion of the divided piece 15 is used as a fulcrum. Each of the divided pieces 15 can be easily oscillated and displaced to reduce the diameter of the outer core body 11, and the insertion work of the outer core body 11 can be smoothly performed. This makes it easy to attach the solder wire coil H to the shape holder 10.

Therefore, even when the inner diameter of the solder wire coil H, that is, the diameter of the center hole H11 is smaller than the outer diameter D of the outer core body 11 due to a manufacturing error, the inner diameter of the solder wire coil H is forced by the outer core body 11. The outer core body 11 of the first shape-retaining member 1 can be easily and appropriately inserted into the center hole H11 of the solder wire coil H without causing a situation in which the solder wire is spread out and the solder wire is disturbed. Further, when the outer core body 11 is inserted into the center hole H11, the possibility that the solder wire on the inner surface of the center hole H11 is damaged is reduced, so that the possibility that the solder wire is defective is reduced.

In particular, when the tapered surface 13 having a narrowed tip is formed on the outer periphery of the tip portion of the outer core body 11, the work of inserting the outer core body 11 into the center hole H11 of the solder wire coil H can be performed more smoothly. It is possible.

Further, in consideration of the manufacturing error, the outer diameter of the outer core body 11 is conversely set without taking measures such as setting the outer diameter of the outer core body 11 to be smaller than the diameter of the center hole H11 of the solder wire coil H in advance. It is also possible to set the diameter of the center hole H11 of the solder wire coil H to be larger than the diameter in advance. Therefore, even when the inner diameter of the solder wire coil becomes larger than the outer diameter of the core body material due to a manufacturing error, the outer core body 11 of the first shape-retaining member 1 is inserted into the center hole H11 of the solder wire coil H. When the solder wire coil H is held by the shape-retaining tool 10, a large gap is formed between the center hole H 11 of the solder wire coil H and the outer core body 11 of the first shape-retaining member 1. It has the advantage that it can effectively suppress the occurrence of remarkable rattling.

As described above, since the ridge 23 for inserting the outer peripheral portion into the slit 14 formed in the outer core body 11 is provided on the outer peripheral surface of the inner core body 21, the slit 14 and the ridge 23 are used as a guide portion. As a result, the work of inserting the inner core body 21 of the second shape-retaining member 2 into the outer core body 11 of the first shape-retaining member 1 can be smoothly performed.

Moreover, in the assembled state in which the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1, the first shape-retaining member 1 and the first shape-retaining member 1 and the second by the slits 14 and the ridges 23. There is also an advantage that the shape-retaining member 2 can be suppressed from rotating relative to each other to prevent rattling.

In the first embodiment described above, a reinforcing piece 24 having an outer diameter slightly smaller than the inner diameter of the outer core body 11 is projected onto the outer peripheral surface of the inner core body 21, and the reinforcing piece 24 is used as the second shape-retaining member 2. Although it is configured to be inserted into the outer core body 11 of the first shape-retaining member 1 together with the inner core body 21, the reinforcing piece 24 may be omitted.

However, when the outer peripheral surface of the inner core body 21 is provided with the reinforcing piece 24 to be inserted into the outer core body 11, the inner core body 21 of the second shape-retaining member 2 is the first shape-retaining member. When both members are assembled by inserting them into the outer core body 11 of 1, the assembling work can be smoothly performed by sliding the outer peripheral surface of the reinforcing piece 24 along the outer core body 11. .. In particular, when the tapered surface 25 having a narrowed tip is formed at the tip of the reinforcing piece 24, the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1. The work can be done more smoothly.

Further, in the assembled state in which the solder wire coil H is held by the outer core body 11 of the first shape-retaining member 1 and the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11, the outer core is formed. The split piece 15 constituting the body 11 can be restrained from the inside by the reinforcing piece 24. Therefore, although the slit 14 is formed in the outer core body 11 of the first shape-retaining member 1 as described above so that each of the divided pieces 15 can be oscillated and displaced, the solder wire coil H is used. It is possible to effectively suppress the deformation of the outer core body 11 of the first shape-retaining member 1 at times. As a result, the solder wire coil H can be stably held by the shape holder 10.

Further, as shown in the first embodiment described above, when the arcuate concave groove 29 into which the tip end portion of the outer core body 11 is fitted is formed on the inner wall surface of the second flange portion 22, the second In the assembled state in which the inner core body 21 of the shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1, the tip end portion of the outer core body 11 is fitted into the concave groove 29 (FIG. 2). (See), it is possible to prevent glare of each of the divided pieces 15 constituting the outer core body 11 of the first shape-retaining member 1. Therefore, the holding state of the solder wire coil H by the shape holder 10 can be further stabilized.

Moreover, by fitting the tip portion of the outer core body 11 into the concave groove 29 of the second flange portion 22 in the assembled state, the tip portion of the outer core body 11 and the inner wall surface of the second flange portion 22 can be connected to each other. It is possible to prevent the formation of gaps between them. Therefore, the solder wire constituting the solder wire coil H is caught in the gap, and the operation of pulling out the solder core is hindered, or the work of removing the unnecessary solder wire coil H from the shape holder 10 is hindered. It is possible to surely prevent the occurrence of such a situation.

In the first embodiment described above, there is an example in which the outer peripheral surface is covered with the coating film H2 and the solder wire coil H with the label H3 attached to the upper surface is held by the shape holder 10. As described above, instead of this configuration, only the coil main body portion H1 may be held by the shape retaining tool 10 in a state where the coating film H2 and the label H3 are peeled off.

In this case, it is desirable to peel off the label H3 from the coating film H2 and attach it to the outer wall surface of the first flange portion 12 or the second flange portion 22. By doing so, the model, material, and the like of the solder wire constituting the solder wire coil H held by the shape holder 10 can be easily confirmed based on the description of the label H3.

On the other hand, as shown in the first embodiment described above, when the outer peripheral surface is covered with the coating film H2 and the solder wire coil H with the label H3 attached to the upper surface thereof is held by the shape holder 10. It is desirable that at least one of the first flange portion 12 and the second flange portion 22 is formed of a transparent or translucent material.

For example, as shown in FIG. 7, the solder wire coil holding is configured so that the end surface on the upper surface side of the solder wire coil H provided with the label H3 is covered by the second flange portion 22 of the second shape-retaining member 2. In the shape tool 10 (see FIG. 10), it is desirable that at least the second flange portion 22 is formed of a transparent or translucent material. By adopting this configuration, the label H3 provided on the upper surface of the solder wire coil H whose outer peripheral surface is covered with the coating film H2 is visually recognized through the second flange portion 22 while being held by the shape holder 10. Therefore, it is possible to confirm the model, material, and the like of the solder wire constituting the solder wire coil H based on the description of the label H3.

On the other hand, when the first flange portion 12 of the first shape-retaining member 1 is configured to cover the end surface on the upper surface side of the wire coil H, the first flange portion 12 is formed of a transparent or translucent material. As a result, the label H3 provided on the upper surface of the solder wire coil H whose outer peripheral surface is covered with the coating film H2 can be visually recognized while being held by the shape holder 10.

Both the first flange portion 12 and the second flange portion 22 may be formed of a transparent or translucent material such as a transparent acrylic material, and the first shape-retaining member 1 and the second shape-retaining member 2 may be formed. The whole may be formed of a transparent or translucent material such as a transparent acrylic material.

As described above, the protrusion of the second shape-retaining member 2 is such that the locking portion 26, in which the inner core body 21 of the second shape-retaining member 2 is inserted into the outer core body 11 of the first shape-retaining member 1 and is maintained in a connected state. In the case where the structure is provided in the Article 23 and the engaged portion 18 in which the locking portion 26 is engageable and disengaged is provided on the first flange portion 12 of the first shape-retaining member 1, the engaging portion 18 is engaged. By engaging the stop portion 26 with the engaged portion 18, when the solder wire coil H is used, the shape-retaining tool 10 in which the first shape-retaining member 1 and the second shape-retaining member 2 are connected can be assembled. It can be maintained stably.

Moreover, after using the solder wire coil H or when replacing it with another type of solder wire coil H, the first shape-retaining member is released by releasing the engaged state between the locking portion 26 and the engaged portion 18. It is possible to separate the 1 and the second shape-retaining member 2 and easily attach a new solder wire coil H to the shape-retaining tool 10.

In the first embodiment described above, the locking portion 26 is projected from the tip end portion of the ridge 23 provided on the inner core body 21 of the second shape-retaining member 2 toward one side, and the first shape-retaining member 2 is formed. An opening 17 through which the tip end portion of the ridge 23 and the locking portion 26 are inserted is formed in the first flange portion 12 of the member 1, and the locking portion 26 is engaged with the locking portion 26 so as to be engageable and disengageable. The engaged portion 18 is formed. Therefore, the inside of the second shape-retaining member 2 until the tip surface of the locking portion 26 and the outer surface of the first flange portion 12 of the first shape-retaining member 1 are flush with each other. After pushing in the core body 21, the second shape-retaining member 2 is rotated counterclockwise in FIG. 6A to engage the locking portion 26 of the second shape-retaining member 2 with the first shape-retaining member 1. It is possible to stably maintain the assembled state of the shape-retaining tool 10 in which the first shape-retaining member 1 and the second shape-retaining member 2 are connected by engaging with the joint portion 18 (see FIG. 2).

Further, since the locking portion 26 provided at the tip of the ridge 23 is configured to be exposed on the outer wall surface of the first flange portion 12, the solder wire coil H is held by the shape holder 10. It can be confirmed at a glance whether the locking portion 26 is in the locked position in the engaged portion 18 or in the unlocked position in the unengaged state. Therefore, when the solder wire coil H is held by the shape holder 10, it is possible to effectively prevent the locking portion 26 from being left in a non-engaged state.

In the shape-retaining tool 10 of the solder wire coil according to the first embodiment described above, as shown in FIG. 3, three slits 14 having a predetermined width dimension W1 are set to the total length in the axial direction of the outer core body 11. However, the structure is not limited to this, and a structure may be formed in which a slit 14 is formed in a part of the outer core body 11, for example, a region excluding the base end portion of the outer core body 11. Further, the number of slits 14 is not limited to three, and may be two or four or more.
(Second embodiment)

FIG. 11 is a perspective view showing a specific structure of the first shape-retaining member 1a constituting the shape-retaining tool 10a of the solder wire coil according to the second embodiment of the present invention. FIG. 12 is a perspective view showing a specific structure of the second shape-retaining member 2a constituting the shape-retaining tool 10a of the solder wire coil according to the second embodiment of the present invention. FIG. 13 is a perspective view showing an assembled state of the shape-retaining tool in which the first shape-retaining member 1a and the second shape-retaining member 2a according to the second embodiment are connected.

The shape-retaining tool 10a of the solder wire coil according to the second embodiment is provided with a ridge 23a in a region excluding the tip portion of the inner core body 21a of the second shape-retaining member 2a constituting the shape-retaining tool 10a, and the ridge 23a is provided. A locking portion 26a projecting from the tip of the first shape retaining member 1a to one side is provided, and the locking portion 26a is the peripheral surface of the outer core body 11a of the first shape-retaining member 1a and is locked to one side portion of the slit 14a. It is different from the first embodiment in that the engaged portion 18a to which the portion 26a is engaged with each other is provided.

Also in this configuration, if the inner core body 21a of the second shape-retaining member 2a is pushed into the outer core body 11a of the first shape-retaining member 1a and then the second shape-retaining member 2a is rotated, it is shown in FIG. As described above, by engaging the locking portion 26a of the second shape-retaining member 2a with the engaged portion 18a of the first shape-retaining member 1a, the first shape-retaining member 1a and the second shape-retaining member 2a are connected. Can be maintained in the same state.

The engaged portion to which the locking portion 26a and the like provided on the second shape-retaining member 2a are engaged with each other so as to be engaged and disengaged are the first flange portion 12a of the first shape-retaining member 1a and the outer core body 11a. It may be a structure provided in both of
(Third embodiment)

FIG. 14 is a front view showing a state in which the shape-retaining tool 10b of the solder wire coil according to the third embodiment of the present invention is disassembled into a first shape-retaining member 1b and a second shape-retaining member 2b. FIG. 15 is a front view (a) and a side view (b) showing the structure of the locking portion 26b provided on the second shape-retaining member 2b. FIG. 16 is a front view showing an assembled state of the shape holder 10b of the solder wire coil H according to the third embodiment.

At the tip of the ridge 23b provided on the inner core body 21b of the second shape-retaining member 2b constituting the shape-retaining tool 10b of the solder wire coil according to the third embodiment, a pair of left and right bulging portions are engaged. A stop 26b is provided. A tapered surface 31b with a narrowed tip is formed at the tip of the locking portion 26b, and a reverse tapered surface 32b with a widened tip is formed at the proximal end.

On the other hand, the outer core body 11b of the first shape-retaining member 1b constituting the shape-retaining tool 10b is formed with a pair of left and right engaged portions 18b in which a part of the slit 14b is formed in a narrow width.

In this configuration, the inner core body 21b of the second shape-retaining member 2b is pushed into the outer core body 11b of the first shape-retaining member 1b, and when both members are connected, the second-retaining body 31b is used. A state in which the first shape-retaining member 1b and the second shape-retaining member 2b are connected by press-fitting the locking portion 26b of the shape member 2b into the engaged portion 18b of the first shape-retaining member 1b (see FIG. 16). Can be maintained at.

Further, when separating the first shape-retaining member 1b and the second shape-retaining member 2b, the reverse tapered surface 32b is used to lock the locking portion 26b of the second shape-retaining member 2b to the first shape-retaining member 1b. By disengaging from the engaged portion 18b of the above, the engaged state between the locking portion 26b and the engaged portion 18b can be released.
(Fourth Embodiment)

FIG. 17 is a perspective view showing a specific structure of the first shape-retaining member 1c constituting the shape-retaining tool according to the fourth embodiment of the present invention.

In the fourth embodiment, the outer core body 11c of the first shape-retaining member 1c is formed in a tapered shape having a divergent tip in which the outer diameter on the tip end side is set to be larger than the outer diameter on the proximal end side. A slit 14c having a divergent shape extending in the axial direction is formed in the outer core body 11c, and the outer core body 11c is separated into a plurality of divided pieces 15c by the slit 14c.

Even in such a configuration, when the outer core body 11c is inserted into the center hole of the solder wire coil described above, each division is performed in the directions indicated by arrows A and A with the base end portion of the division piece 15c as a fulcrum. The tip portion of the outer core body 11c can be reduced in diameter by swinging and displacing the piece 15c. Therefore, even though the outer core body 11c is formed in a tapered shape with a widened tip, it can be smoothly inserted into the center hole of the solder wire coil.

Moreover, in the state where the outer core body 11c is inserted into the central hole of the solder wire coil, the outer peripheral surface thereof is pressed against the peripheral surface of the central hole of the solder wire coil according to the restoring force of the outer core body 11c, so that the solder wire is soldered. The holding state of the coil can be stabilized.

That is, the shape-retaining tool for the solder wire coil according to one aspect of the present invention is a shape-retaining tool for the solder wire coil in which the solder wire is wound in a cylindrical shape, and is a cylinder inserted into the center hole of the solder wire coil. In addition to the first shape-retaining member having a shaped outer core body and a first flange portion covering one end surface of the solder wire coil, the inner core body inserted into the outer core body, and the solder wire coil. It has a second shape-retaining member provided with a second flange portion that covers the end face, and a slit extending in the axial direction is formed in the outer core body of the first shape-retaining member, and the outer core is formed by the slit. At least a part of the body is separated into multiple pieces.

According to this configuration, when the outer core body of the first shape-retaining member is inserted into the center hole of the solder wire coil, each divided piece is easily oscillated and displaced to reduce the diameter of the outer core body. The work of inserting the outer core body into the center hole of the solder wire coil can be smoothly performed. As a result, even if a manufacturing error occurs in the solder wire coil or the shape-retaining tool, it becomes easy to attach the solder wire coil to the shape-retaining tool, and it is possible to reduce the possibility that the solder wire is defective.

Further, it is preferable that the outer peripheral surface of the inner core body is provided with a ridge extending in the axial direction in which the outer peripheral portion is inserted into the slit formed in the outer core body.

According to this configuration, by using the slit and the ridge as a guide portion, it is possible to smoothly insert the inner core body of the second shape-retaining member into the outer core body of the first shape-retaining member. .. Moreover, in the assembled state in which the inner core of the second shape-retaining member is inserted into the outer core of the first shape-retaining member, the first shape-retaining member and the second shape-retaining member rotate relative to each other due to the slits and ridges. It also has the advantage of suppressing rattling and preventing rattling.

Further, the outer peripheral surface of the inner core body may be configured such that a reinforcing piece having an outer diameter slightly smaller than the inner diameter of the outer core body is projected.

According to this configuration, when the inner core body of the second shape-retaining member is inserted into the outer core body of the first shape-retaining member and both members are assembled, the outer peripheral surface of the reinforcing piece is slid along the outer core body. By moving it, the work of assembling the shape-retaining tool can be performed smoothly. Further, in the assembled state in which the solder wire coil is held by the outer core body of the first shape-retaining member and the inner core body of the second shape-retaining member is inserted into the outer core body, the divided pieces constituting the outer core body are formed. Can be restrained from the inside by the reinforcing piece, so that it is possible to effectively suppress the deformation of the outer core body of the first shape-retaining member when the solder wire coil is used, and the solder is soldered by the shape-retaining tool. The wire coil can be stably held.

Further, it is preferable to form a concave groove in which the tip end portion of the outer core body is fitted on the inner wall surface of the second flange portion.

According to this configuration, in the assembled state of the shape-retaining tool in which the inner core body of the second shape-retaining member is inserted into the outer core body of the first shape-retaining member, the tip portion of the outer core body is fitted into the concave groove. Thereby, it is possible to prevent glare of each divided piece constituting the outer core body of the first shape-retaining member. Therefore, the holding state of the solder wire coil by the shape holder can be further stabilized. Moreover, by fitting the tip of the outer core into the concave groove of the second flange in the assembled state, a gap is formed between the tip of the outer core and the inner wall surface of the second flange. It is possible to prevent it from being done. As a result, the solder wires constituting the solder wire coil are caught in the gap, and the operation of pulling out the solder core is hindered, or the work of removing the unnecessary solder wire coil from the shape holder is hindered. Can be effectively prevented.

Further, it is preferable that at least one of the first flange portion and the second flange portion is made of a transparent or translucent material.

According to this configuration, in the shape-retaining tool of the solder wire coil configured to cover the end face of the solder wire coil provided with the label with one of the first flange portion and the second flange portion, the label installation portion. By forming the flange portion that covers the solder wire coil with a transparent or translucent material, the label provided on the end face of the solder wire coil can be visually recognized through the transparent flange portion while the solder wire coil is held by the shape holder. As a result, it becomes possible to confirm the model, material, and the like of the solder wires constituting the solder wire coil based on the description on the label.

Further, the ridge is provided with a locking portion for maintaining an assembled state in which the inner core of the second shape-retaining member is inserted into the outer core of the first shape-retaining member, and the first shape-retaining member is provided. It is preferable that at least one of the first flange portion or the outer core body of the member is provided with an engaged portion in which the locking portion is engageable and disengaged.

According to this configuration, by engaging the locking portion with the engaged portion, when the solder wire coil is used, the shape-retaining tool in which the first shape-retaining member and the second shape-retaining member are connected is assembled. Can be stably held. In addition, after using the solder wire coil or when replacing it with another type of solder wire coil, the engaged state between the locking portion and the engaged portion is released, so that the first shape-retaining member and the second retaining member and the second retaining member are released. A new solder wire coil can be easily attached to the shape holder by separating it from the shape member.

Further, the locking portion is projected from the tip end portion of the ridge toward one side, and the tip end portion of the ridge and the locking portion are provided on the first flange portion of the first shape-retaining member. It is preferable that the opening to be inserted is formed and the engaged portion is formed on the side of the opening.

According to this configuration, the inner core of the second shape-retaining member is in a temporarily assembled state in which the tip surface of the locking portion and the outer surface of the first flange portion of the first shape-retaining member are flush with each other. After pushing the body, by rotating the second shape-retaining member, the locking portion of the second shape-retaining member is engaged with the engaged portion of the first shape-retaining member, and the first shape-retaining member is engaged. It is possible to maintain the assembled state of the shape-retaining tool in which the shape-retaining member and the second shape-retaining member are connected. Further, since the locking portion provided at the tip of the ridge is exposed on the outer wall surface of the first flange portion, the locking portion is held in a state where the solder wire coil is held by the shape holder. It is possible to confirm at a glance whether it is in the locked position in the engaged state or in the unlocked position in the unengaged state. Therefore, when the solder wire coil is held by the shape holder, it is possible to effectively prevent the locking portion from being left in a disengaged state.

Further, the outer core body may have a configuration in which the outer diameter on the tip end side thereof is set to be larger than the outer diameter on the base end portion side and is formed in a tapered shape with a bulge.

According to this configuration, when the outer core body is inserted into the center hole of the solder wire coil, each of the divided pieces is oscillated and displaced with the base end portion of the divided pieces as a fulcrum, thereby causing the outer core body. The diameter of the tip can be reduced. Therefore, even though the outer core body is formed in a tapered shape with a widened tip, it can be smoothly inserted into the center hole of the solder wire coil. Moreover, when the outer core body is inserted into the center hole of the solder wire coil, the outer peripheral surface thereof is pressed against the peripheral surface of the center hole of the solder wire coil according to the restoring force of the outer core body, so that the solder wire coil is pressed. The holding state of the solder can be stabilized.

The shape-retaining tool for the solder wire coil according to one aspect of the present invention makes it easy to attach the solder wire coil and causes defects in the solder wire even when the solder wire coil or the shape-retaining tool has a manufacturing error. It is possible to reduce the risk.

This application is the Malaysian Application No. filed on January 16, 2017. It is based on PI200770051 and is included in this application. It should be noted that the specific embodiments or examples made in the section of embodiments for carrying out the invention merely clarify the technical contents of the present invention, and the present invention is such a specific example. It should not be construed in a narrow sense.

1 First shape-retaining member 2 Second shape-retaining member 10, 10a, 10b, 10c Shape-retaining tool 11, 11a, 11b, 11c Outer core body 12 First flange portion 14, 14a, 14b, 14c Slit 15, 15c Divided piece 18, 18a, 18b Engagement part 21,21a, 21b Inner core body 22 Second flange part 23, 23a, 23b Protrusion 24 Reinforcing piece 26, 26a, 26b Locking part H Solder wire coil

Claims (7)

It is a shape-retaining tool for a solder wire coil in which a solder wire is wound in a cylindrical shape.
A first shape-retaining member having a tubular outer core body inserted into the center hole of the solder wire coil and a first flange portion covering one end surface of the solder wire coil.
It has a second shape-retaining member having a cylindrical inner core body inserted into the outer core body and a second flange portion covering the other end surface of the solder wire coil.
With the inner core body inserted into the outer core body, the tip of the inner core body is positioned so as to be flush with the surface of the first flange portion opposite to the outer core body.
A slit extending in the axial direction is formed in the outer core body of the first shape-retaining member, and at least a part of the outer core body is separated into a plurality of divided pieces by the slit.
The slit is formed over the entire length of the outer core body in the axial direction.
On the outer peripheral surface of the inner core body, a ridge extending in the axial direction is provided so that the outer peripheral portion is inserted into the slit formed in the outer core body.
The ridge is a shape-retaining tool for a solder wire coil formed over substantially the entire length direction of the inner core body . The shape-retaining tool for a solder wire coil according to claim 1 , wherein a concave groove into which the tip end portion of the outer core body is fitted is formed on the inner wall surface of the second flange portion. The shape-retaining tool for a solder wire coil according to claim 1 or 2 , wherein at least one of the first flange portion and the second flange portion is made of a transparent or translucent material. The ridge is provided with a locking portion for maintaining an assembled state in which the inner core of the second shape-retaining member is inserted into the outer core of the first shape-retaining member.
The solder according to claim 1 , wherein an engaged portion is provided on at least one of the first flange portion and the outer core body of the first shape-retaining member so that the locking portion can be engaged and disengaged. Shape holder for wire coil. 6 . Shape holder for solder wire coil. It is a shape-retaining tool for a solder wire coil in which a solder wire is wound in a cylindrical shape.
A first shape-retaining member having a tubular outer core body inserted into the center hole of the solder wire coil and a first flange portion covering one end surface of the solder wire coil.
It has a second shape-retaining member having an inner core body inserted into the outer core body and a second flange portion covering the other end surface of the solder wire coil.
A slit extending in the axial direction is formed in the outer core body of the first shape-retaining member, and at least a part of the outer core body is separated into a plurality of divided pieces by the slit.
A reinforcing piece having an outer diameter slightly smaller than the inner diameter of the outer core body is projected at a position corresponding to a divided piece which is a portion of the outer core body other than the slit on the outer peripheral surface of the inner core body.
The reinforcing piece is a shape-retaining tool for a solder wire coil for restraining the divided piece from the inside. It is a shape-retaining tool for a solder wire coil in which a solder wire is wound in a cylindrical shape.
A first shape-retaining member having a tubular outer core body inserted into the center hole of the solder wire coil and a first flange portion covering one end surface of the solder wire coil.
It has a second shape-retaining member having an inner core body inserted into the outer core body and a second flange portion covering the other end surface of the solder wire coil.
A slit extending in the axial direction is formed in the outer core body of the first shape-retaining member, and at least a part of the outer core body is separated into a plurality of divided pieces by the slit.
On the outer peripheral surface of the inner core body, a ridge extending in the axial direction is provided so that the outer peripheral portion is inserted into the slit formed in the outer core body.
The ridge is provided with a locking portion for maintaining an assembled state in which the inner core of the second shape-retaining member is inserted into the outer core of the first shape-retaining member.
At least one of the first flange portion or the outer core body of the first shape-retaining member is provided with an engaged portion in which the locking portion is engageable and disengageable.
The locking portion is projected from the tip end portion of the ridge toward one side.
The first flange portion of the first shape-retaining member is formed with an opening through which the tip of the ridge and the locking portion are inserted, and the engaged portion is located on the side of the opening. A shape holder for the formed solder wire coil.

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