JPH0237751Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to a static magazine for storing electronic components used for storing electronic components with terminals such as semi-fixed variable resistors and automatically inserting them into printed circuit boards. It is something.

(Prior technology) Recently, with the development of automatic insertion machines for attaching microelectronic components such as chip resistors and semi-fixed variable resistors to printed circuit boards, magazines have been developed to store and automatically supply electronic components to be automatically inserted. has been done.

This type of magazine generally has a rectangular cross section, and when rectangular electronic components are stored or removed, it is carried out by sliding. For example, when taking out electronic components, the magazine is tilted and the electronic parts stored in the magazine are slid down by their own weight, so that the internal electronic parts can be taken out from the bottom.

However, since the electronic components and the inner surface of the magazine were in surface contact, a large frictional force was generated between the electronic components and the inner surface of the magazine. As a result, for electronic components that are relatively small and light in weight, the above-mentioned frictional force becomes greater than the sliding downward force due to the electronic component's own weight, and the component is likely to become jammed.

Examples of magazines having a structure that prevents the occurrence of parts clogging include Fig. 1A, Fig. 1B, and Fig. 1C (see Utility Model Application No. 53-140681 and Utility Model Application No. 55-121086). ) as shown.

In this figure 1A, figure 1B, figure 1C,
Reference numeral 1 denotes a plastic cylinder, which is made by extrusion molding with a cross section as shown in FIG. That is, the cylinder 1 has a substantially rectangular prism shape, and the wall surface 1
It consists of a, 1b, and 1c. Wall surface 1a, 1
Ribs 2a, 2b, 2c that protrude perpendicularly and extend continuously in the longitudinal direction are formed on the inner sides of b, 1c.

Also, similar to this are Figure 2A,
There is one as disclosed in FIG. 2B (see Japanese Utility Model Application No. 58-85348). In this structure, wall surfaces 1b,
Ribs 3a, 3a similar to the above-mentioned rib 2b are formed on the wall 1b, and the wall 1c (bottom wall) has a wall 1 on the inside.
A protrusion 4 is formed by bulging c itself. A large gap S is formed between the bottom 5a of the electronic component 5 such as a semi-fixed variable resistor and the top surface of the protrusion 4, and the ribs 3a, 3a are in contact with the top of the head 5b of the electronic component 5. At least two terminals 6 of the electronic component 5 extend on both sides of the protrusion 4 and are guided in sliding contact with the bottom surface 1c of the cylindrical body 1.

(Problems to be solved by the invention) However, since such a stationary magazine is made of plastic material by extrusion molding, the walls 1a, 1b, 1c and the protrusions 4 are
Although the external dimensions such as rib 3a, etc. are fixed,
Ribs 3a, which are formed on the inside like 3a, are difficult to achieve dimensional accuracy due to the surging phenomenon caused by vacuum suction, and therefore have uneven shapes and dimensions.
3a, which caused problems such as tilting of the parts, deforming the terminals, and clogging of parts. The same applies to the ribs 2a to 3a. Further, since the cylinder 1 has a long shape, the above-mentioned problems are exacerbated by bending, twisting, etc.

Further, the terminal 6 of the electronic component 5 is made of metal and has a sharply cut edge, while the cylindrical body 1 (magazine)
is made of synthetic resin that is softer than the terminal 6, so when the terminal of a relatively large and relatively heavy electronic component slides on the bottom of the cylinder 1, that is, the bottom of the wall surface 1c, as described above, , cylinder 1
The wall surface 1c is easily damaged by the terminals 6 of the electronic component 5. Furthermore, since the distance between the terminals 6 of the electronic component 5 varies somewhat, the positions where the terminals 6 slide on the wall surface 1c of the cylindrical body 1 vary somewhat. As a result, the wall surface 1c of the cylindrical body 1 had irregular scratches caused by the terminals 6 of the electronic component 5.

Further, since the cylinder 1 is made of synthetic resin and is relatively flexible, if the cylinder 1 is mechanically clamped, the cylinder 1 will be distorted at the clamping portions. At this time, depending on the clamping state of the cylinder 1, the terminal 6 of the electronic component 5 was pressed against the wall surface 1c of the cylinder 1, and the terminal 6 was bent and the wall surface 1c of the cylinder 1 was damaged. .

If the wall surface 1c of the cylindrical body 1 is scratched due to such a cause, this scratch will obstruct the sliding movement of the terminals 6 of the electronic component 5, causing the electronic component 5 to fall in the direction of movement within the cylindrical body 1. The alignment of the plurality of electronic components 5 is disordered,
The electronic component 5 becomes jammed and cannot move within the cylinder 1.

Therefore, it is desirable to prevent such a situation from occurring.

(Purpose of the invention) Therefore, the object of this invention is to provide a stay magazine that can stably hold and smoothly guide electronic parts without deforming the terminals of the electronic parts.

(Structure of the device) This device has at least two
A cylindrical body for arranging and accommodating electronic components provided with book terminals is formed from a synthetic resin, and a plurality of bulges are provided on the cylindrical body to bulge into the cylindrical body and extend in the longitudinal direction of the body. , a stay magazine for storing electronic components in which the electronic component body is guided and held movably in the longitudinal direction of the cylinder by the plurality of bulges, wherein one of the plurality of bulges is connected to the 2
A bulge is made between the terminals of the book, and the amount of bulge of the bulge between the terminals is set to an amount that the tip of the terminal is spaced from the bottom wall surface of the cylinder, and the tip of each bulge is The station magazine for storing electronic components is characterized in that it is also provided with a guide surface that makes surface contact with a part of the outer surface of the electronic component main body.

(Example) Next, this invention will be explained based on the drawings.

FIGS. 3 to 5 show an embodiment of the station magazine according to this invention. In the figure, 11 is a cylinder formed by extrusion molding, for example, made of vinyl chloride or polycarbonate, and has wall surfaces 12, 13,
14 has bulging portions 12a, 13a, and 14a formed by bulging itself inward and continuously in the longitudinal direction to a position close to the outer shape of the electronic component 15. In particular, the bulging portion 14a bulges out between the terminals 6. Therefore, each wall surface 12, 13,
14 are bead-shaped bulges 12a, 13a, 14a
is formed, and the surface rigidity is improved, and the rigidity of the cylindrical body 11 is also improved, making it strong against bending and twisting.

Details of the state in which the electronic component 15 is housed are shown in FIG. In this electronic component 15, the bottom 15a of the electronic component main body A is a guide surface 14b of the bulged portion 14a.
In this case, the head 15b of the electronic component main body A is connected to the bulge 12a.
and the left and right side portions 15c of the electronic component main body A contact or come close to the guide surface 13b of the bulged portion 13a, and the terminals 16, 16 contact the head 15b from both sides of the electronic component main body A. extend in opposite directions to both sides of the bulge 14a. Furthermore, the amount of bulge of the bulge portion 14a is set to an amount by which the terminals 16, 16 are spaced apart from the bottom wall surface of the cylindrical body 11. As a result, the electronic component 15
The terminals 16, 16 are guided and held in the longitudinal direction of the cylindrical body 11 in a floating state by the terminals a, 13a, and 14a. These bulges 12a, 13a, 14a are
Guide surfaces 12b are provided around the electronic component body A, respectively.
Since the parts 13b and 14b abut or come close to each other, the electronic component 15 can be held stably.

Although not shown in the figure, the guide surfaces 12b, 1
It is common technical knowledge that a slight gap is formed between the electronic component body A and the electronic component main body A in a magazine that slides and guides electronic components. Furthermore, since this gap is not large enough to be shown in the drawing, the gap does not actually appear on the drawing.

In addition, generally, the electronic component main body A and the guide surface 12
Frictional force is generated at the contact portions of b, 13b, and 14b, and attempts to prevent the electronic component main body A from sliding. However, some electronic components are relatively large and heavy, and the downward sliding force due to the electronic component 15's own weight when the cylinder body 11 (magazine) is tilted is greater than the frictional force generated at the contact portion. Therefore, if the cylinder 11 is used to guide such an electronic component, frictional force will be generated at the contact portions between the electronic component body A and the guide surfaces 12b, 13b, and 14b, thereby preventing the electronic component body A from sliding. Even if an attempt is made to do so, the electronic component is guided and slid downwardly within the cylinder 11 (magazine) in a smooth and stable state.
At this time, the electronic component 15 has the bulges 12a, 13
Since the terminals 16, 16 are guided in the longitudinal direction of the cylindrical body 11 in a floating state by the terminals 16, 14a, the bottom of the cylindrical body 15 is not scratched by the terminals 16, 16. Moreover, there is no possibility that parts will become jammed due to this scratch.

FIG. 5 shows a modified embodiment of the bulge formed on the cylindrical body 11. As shown in FIG. In this modified embodiment, a bulge 22 is provided on the opposing wall surfaces 22 and 24 of the cylindrical body 21.
a, 22b, 24a, and these bulges 2
2a, 22b, 24a guide surfaces 22c, 22d,
24b holds and guides the electronic component 25. That is, in the electronic component 25, the bottom 25a is received by the bulge 24a, the head 25b is received by the bulge 22a, the side of the head 25b is received by the side of the bulge 22b, and the terminal 26 is received by the bulge 22a. It extends on both sides of 24a to be held and guided.

Since the outer dimensions of the cylinders 11 and 21 having cross sections as shown in FIGS. 4 and 5 are fixed by extrusion molding, the bulges 12a, 13a, 14
The accuracy of a, 22a, 22b, and 24a is also improved. Therefore, stable holding of electronic components and reliable supply to printed circuit boards etc. are guaranteed. Swelling parts 12a, 13a, 14a, 22a, 2
2b and 24a improve the bending and torsional rigidity of the cylinders 11 and 21, and protect the electronic components 15 and 25 even if the cylinders 11 and 21 receive external force.

(Effects) As explained above, this invention provides a tube for arranging and storing electronic components provided with at least two terminals extending from both sides of the electronic component body in a direction opposite to the head of the electronic component body. The body is made of synthetic resin, and the cylindrical body is provided with a plurality of bulging portions that bulge into the cylindrical body and extend in the longitudinal direction of the cylindrical body. The stationary magazine for storing electronic components is configured to be guided and held so as to be movable in the longitudinal direction. The amount of bulge of the protruding portion is set to an amount that the tip of the terminal is spaced from the bottom wall of the cylindrical body, and a guide surface is provided at the tip of each of the bulging portions to make surface contact with a part of the outer surface of the electronic component main body. Because the magazine is equipped with a fixed magazine, the area for holding electronic components is larger than that of ribs, ensuring stable electronic component retention, no clogging, and smooth guidance by directing the terminals in a fixed direction. Ru. Furthermore, even if the cylindrical body is subjected to a slight external force during storage or transportation, the bulge increases its rigidity and protects the electronic components inside.

In addition, a guide surface that makes surface contact with a part of the outer surface of the electronic component body is provided at the tip of the bulge to prevent the bulge from becoming thin like a rib, making it easier to mold the cylinder. Even if suction is applied from the opposite side (the exit side of the cylindrical body of the molding device), surging does not occur in this bulge as in the case of ribs, and the bulge can be formed on the cylindrical body with much higher precision than ribs.

On the other hand, generally, frictional force is generated at the contact portion between the electronic component body and the guide surface, and attempts to prevent the electronic component body from sliding. However, there are some electronic components that are relatively large and heavy, and the downward sliding force due to the electronic component's own weight when the cylinder (magazine) is tilted is greater than the frictional force generated at the contact portion. Therefore, if a cylindrical body is used to guide such electronic components, even if frictional force is generated at the contact area between the electronic component body and the guide surface and attempts to prevent the electronic component body from sliding, the electronic component will remain smooth. In addition, it is guided in a cylinder (magazine) and slid downward in a stable state.

As a result, the electronic component body can be guided and held more smoothly than the ribs by forming the bulges on the cylindrical body with much higher precision than the ribs.

Moreover, one of the plurality of bulges is bulged between two terminals of the electronic component, and the amount of bulge of the bulge between the terminals is such that the tip of the terminal is spaced apart from the bottom wall surface of the cylindrical body. Since the electronic component is set to a certain amount, the electronic component can be moved in the longitudinal direction of the cylindrical body with the terminal tip separated from the inner surface of the cylindrical body (floating up). As a result, there is no possibility that the terminal of the electronic component will get caught on the inner surface of the cylindrical body.

Furthermore, the electronic components are housed in alignment within the cylinder with the terminal tips away from the inner surface of the cylinder.
When the package, that is, the cylindrical body is held, there is no possibility that the terminals of the electronic components inside the cylindrical body will be pressed against the wall surface of the cylindrical body and bent.

[Brief explanation of drawings]

Figures 1A, 1B, 1C, 2A, and 2B are cross-sectional views of conventional stack magazines for storing electronic components, and Figures 3 to 5 are related to this invention. A static magazine for storing electronic components, the third
The figure is a perspective view of the main parts of the magazine, Figure 4 is a sectional view of the magazine with electronic components stored in it, and Figure 5 is a sectional view similar to Figure 4 showing another example of the shape of the bulge. be. 1, 11, 21...cylindrical body, 12, 13, 14,
22, 24...Wall surface, 12a, 13a, 14a,
22a, 22b, 24a... bulge, 15, 25
...Electronic parts, 6, 16, 26...terminals.

Claims (1)

[Claims for Utility Model Registration] A cylindrical body made of synthetic resin for accommodating electronic components arranged in rows and provided with at least two terminals extending from both sides of the electronic component body in a direction opposite to the head of the electronic component body. A plurality of bulging portions are provided in the cylindrical body, each bulging into the cylindrical body and extending in the longitudinal direction of the cylindrical body, and the electronic component main body can be moved in the longitudinal direction of the cylindrical body by the plurality of bulging parts. A stationary magazine for storing electronic components configured to guide and hold electronic components, wherein one of the plurality of bulges bulges out between the two terminals, and the bulge between the terminals bulges out. The amount is set to such an amount that the tip of the terminal is spaced from the bottom wall surface of the cylindrical body, and a guide surface is provided at the tip of each of the bulges to make surface contact with a part of the outer surface of the electronic component main body. A static magazine for storing electronic parts.