JPH10224083A - Automatic insertion stick - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transfer an electronic component smoothly by forming a protrusion at a part on the inner surface where the electronic component slides. SOLUTION: When a miniature transformer 7 is transferred to be mounted on a printed board 8, an automatic insertion stick 1 is arranged in inclining state. The miniature transformer 7 is inserted into the automatic insertion stick 1 with each pin terminal at the opposite ends thereof being located in a space defined by the lower end part of each side wall 5 and the protruding bottom part 3 of the automatic insertion stick 1 and then the miniature transformer 7 is transferred through the automatic insertion stick 1. The miniature transformer 7 comes into line contact with the forward end of a protrusion 3A on the protruding bottom part 3 and with the forward end of one protrusion 6 on each side wall 5 when it is transferred to the printed board 8. More specifically, the miniature transformer 7 is transferred through the automatic insertion stick 1 under a state where the contact parts are small in number.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a stick for automatic insertion, which serves as a transport path for small transformers and other electronic components for consumer use.

[0002]

2. Description of the Related Art Conventionally, an automatic insertion stick has been used as a transport path for transporting a small consumer transformer or other electronic components to a printed circuit board for mounting. FIG.
As shown in FIG. 7, the automatic insertion stick 40 is formed in a substantially rectangular cylindrical shape when viewed from the axial direction (the direction of arrow A in FIG. 6). The bottom of the automatic insertion stick 40 is bent so as to have a convex shape toward the inside to form a convex bottom 41, and when the small transformer 7 is inserted as shown in FIG. The bottom surface 7A of the small transformer 7 is in contact with the convex bottom 41.

Further, in the automatic insertion stick 40, the side surface 7B of the small transformer 7 can be brought into contact with one of the inner surfaces of the pair of side walls 42. As shown in FIG. 6, the automatic insertion stick 40 configured as described above is arranged to be inclined with respect to the printed circuit board 8, and the small transformer 7 is transported in the inner space. It is supplied to the printed circuit board 8.

[0004]

However, the conventional stick for automatic insertion 40 is provided on the side face 7 of the small transformer 7.
B, since the bottom surface 7A is in surface contact with each of the convex bottom portion 41 and the inner surface of the side wall 42 of the automatic insertion stick 40, there is a problem that the frictional resistance is large and the small transformer 7 does not slide smoothly. If the slippage is poor as described above, the supply time of the small transformer 7 to the printed circuit board 8 may be lost,
There is also a problem that the small transformer 7 does not slide off the automatic insertion stick 40. The present invention has been proposed in view of the above, and it is an object of the present invention to provide an automatic insertion stick capable of smoothly transporting electronic components.

[0005]

Means for Solving the Problems The present invention has been proposed to achieve the above object, and is characterized by the following constitution. That is, according to the present invention, in an automatic insertion stick that has a substantially rectangular cylindrical shape when viewed from the axial direction and is arranged in an inclined state and can transport an electronic component while sliding on an inner surface, A stick for automatic insertion is provided, wherein a ridge portion is formed on a portion of the inner surface where the electronic component slides.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic insertion stick (electronic component transport member) according to a first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of a stick for automatic insertion according to a first embodiment of the present invention, and FIG. 2 is a plan view showing a state where a small transformer 7 is inserted into the stick for automatic insertion. As shown in FIG. 1, an automatic insertion stick 1
Has a substantially rectangular cylindrical shape when viewed from its axial direction (the direction of arrow A in FIG. 1). The bottom wall 2 of the automatic insertion stick 1 is bent such that the central portion in the width direction (the direction of the arrow B in FIG. 1) has a convex shape inward over the entire axial direction of the automatic insertion stick 1. , The convex bottom 3 corresponding to the bottom 7A of the small transformer 7.

On the upper surface 3A of the convex bottom 3, a ridge 3B
Is provided at the center in the width direction so as to protrude over the entirety of the automatic insertion stick 1 in the axial direction. This ridge 3B
As shown in FIG. 2, the tip is sharply formed, and the shape of the automatic insertion stick 1 as viewed from the axial direction is triangular.

Further, a ridge 6 having the same shape as the ridge 3B is also provided on the inner surface of each side wall 5 of the stick 1 for automatic insertion. The ridge 6 is formed substantially at the center of the side wall 5 in the vertical direction in FIG. 2 and is formed over substantially the entire axial direction of the automatic insertion stick 1. Each of the ridges 6 can be brought into contact with the side surface 7B of the small transformer 7. The automatic insertion stick 1 configured as described above is not particularly limited, but may be manufactured by injection molding using a thermoplastic resin as a material thereof, or may be manufactured by die casting using metal as a material. Good.

When the small transformer 7 is conveyed to be mounted on the printed circuit board 8 using the automatic insertion stick 1 configured as described above, the automatic insertion stick 1 is used.
Is placed in an inclined state. And, as shown in FIG.
In the automatic insertion stick 1, the small transformer 7 is located in a space in which each pin terminal 7 </ b> C at each end is formed by the lower end of each side wall 5 and the convex bottom 3 of the automatic insertion stick 1. Insert into state. When air is sent into the automatic insertion stick 1 toward the printed circuit board 8 by means known per se, the small transformer 7 is conveyed through the automatic insertion stick 1.

In this transport, the small transformer 7 is
Line contact is made with the tip of the ridge 3A of the convex bottom 3 and
Each of the side walls 5 comes in line contact with the tip of one ridge 6, is guided, and is conveyed to the printed circuit board 8. That is, the automatic insertion stick 1 according to the present embodiment can be used in a state in which the small transformer 7 is in line contact without surface contact, that is, in a state where the contact portion is very small. Is transported inside.

For this reason, the frictional resistance when the small transformer 7 is transported becomes very small, and the small transformer 7 becomes slippery, so that the small transformer 7 is smoothly transported to the printed circuit board 8. That is, the small transformer 7 is transported reliably and quickly without stopping in the automatic insertion stick 1.

By adjusting the amount of projection of the ridges 3B and 6 during molding, electronic components of various shapes and dimensions can be brought into contact with the ridges 3B and 6; A suitable automatic insertion stick 1 according to the type of component can be easily formed.

FIG. 3 shows an automatic insertion stick 10 according to a second embodiment of the present invention. The external shape of the automatic insertion stick 10 of the present embodiment is the same as that of the automatic insertion stick 1 of the first embodiment. However, the present embodiment differs from the first embodiment in that the ridge 13 is not formed on the convex bottom 11 of the automatic insertion stick 10 but is formed only on the inner surface of the side wall 12. I have.

In this embodiment, when the small transformer 7 is conveyed in the automatic insertion stick 10, its side surface 7 B comes into line contact with one of the ridges 13 of the side wall 12 of the automatic insertion stick 10. It is guided in this state and is conveyed to the printed circuit board 8. Therefore, the frictional resistance can be reduced as compared with the case where the surfaces are in contact with each other, so that the same effects as those of the first embodiment, such as the smooth transfer of the small transformer 7, can be obtained.

FIG. 4 shows an automatic insertion stick 20 according to a third embodiment of the present invention. The external shape of the automatic insertion stick 10 of the present embodiment is the same as that of the automatic insertion stick 1 of the second embodiment. However, the present embodiment is different from the second embodiment in that the ridges 23 are provided at two locations on the inner surface of each side wall 22 on the upper side and the lower side. In this embodiment, when the small transformer 7 is conveyed in the automatic insertion stick 20, the side surfaces 7 </ b> B of the small transformer 7 are formed on two upper and lower portions of one side wall 22 of the automatic insertion stick 20. And is conveyed to the printed circuit board 8 while being in line contact with.

In this embodiment, the first embodiment and the second embodiment
As in the embodiment, since the frictional resistance when the small transformer 7 is transported is reduced, there is an effect that the small transformer 7 can be transported smoothly. Further, in the present embodiment, the ridges 2
3 are vertically formed at two locations on each side wall 22, and one of the ridges 23 is located below the ridges of the first and second embodiments. There is an effect that the ridges 23 come into line contact with electronic components having small dimensions, and the electronic components can be smoothly transported to the printed circuit board 8.

FIG. 5 shows an automatic insertion stick 30 according to a fourth embodiment of the present invention. The external shape of the automatic insertion stick 10 of the present embodiment is the same as that of the automatic insertion stick 1 of the first embodiment. However, the present embodiment differs from the first embodiment in that a ridge 32 is also formed on the inner surface of the upper wall 31 of the automatic insertion stick 30.

In the present embodiment, when the small transformer 7 is conveyed in the automatic insertion stick 30, the side face 7B of the small transformer 7 is formed on each side wall 33 of the automatic insertion stick 30.
Is guided in a state of being in line contact with one of the protruding portions 34 formed on the convex bottom portion 35 and the protruding portion 32, and is conveyed to the printed circuit board 8. Also in this embodiment, as in the first to third embodiments, the frictional resistance when the small transformer 7 is conveyed is reduced, so that the small transformer 7 can be smoothly conveyed.

Further, in this embodiment, the small transformer 7 is transported while being sandwiched between the ridges 32 and 36, so that the small transformer 7 does not rattle in the vertical direction. Can be transported in a stable state. In the above embodiment, the case where the automatic insertion stick is used for transporting the small transformer 7 to the printed circuit board 8 is described. However, it goes without saying that the automatic insertion stick can be used for transporting electronic components other than the small transformer 7. Further, the present invention may be used when the electronic component is transported to the component storage unit.

In the above embodiment, the case where the shape of the ridge is a triangular shape with a sharp tip is described. However, the present invention is not limited to this, and the contact area with the small transformer 7 is reduced. Any shape can be used as long as it can be formed, that is, the shape of the automatic insertion stick 1 viewed from the axial direction may be a substantially semicircular shape that is convex toward the inside of the automatic insertion stick 1. Even with such a shape, when the small transformer 7 is transported, the contact portion with the inner surface of the automatic insertion stick 1 can be reduced, and the frictional resistance can be suppressed, so that the small transformer 7 can be transported smoothly. I can do it. Further, in the first to fourth embodiments, the side surface of the small transformer 7 is configured to abut on the ridge formed on one inner surface of each side wall, and the ridge formed on the inner surface of both side walls. Although the case where they do not abut at the same time is described, they may abut simultaneously on the ridges formed on the inner surfaces of both side walls.

[0021]

As described above, according to the present invention, the shape viewed from the axial direction is a substantially rectangular cylindrical shape, and the electronic components can be transported while being arranged in an inclined state and sliding on the inner surface. In the stick for automatic insertion, a ridge portion is formed on a portion of the inner surface where the electronic component slides, so that it is possible to provide the stick for automatic insertion capable of smoothly transporting the electronic component.

[Brief description of the drawings]

FIG. 1 is a perspective view showing how a small transformer is conveyed to a printed circuit board by an automatic insertion stick according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a state where a small transformer is housed in an automatic insertion stick.

FIG. 3 is a plan view showing a second embodiment of the automatic insertion stick of the present invention.

FIG. 4 is a plan view showing a third embodiment of the automatic insertion stick of the present invention.

FIG. 5 is a plan view showing a fourth embodiment of the automatic insertion stick of the present invention.

FIG. 6 is a perspective view showing a state in which a small transformer is conveyed to a printed circuit board by a conventional automatic insertion stick.

FIG. 7 is a plan view showing a state where a small transformer is accommodated in an automatic insertion stick.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic insertion stick 2 Bottom wall 3 Convex bottom 3A Top surface 3B Ridge 5 Side wall 6 Ridge 7 Small transformer 7A Bottom 7B Side 7C Pin terminal 8 Printed circuit board 10 Automatic insertion stick 11 Convex bottom 12 Side wall 13 Protrusion Strip 20 Automatic insertion stick 22 Side wall 23 Projection 30 Automatic insertion stick 31 Top wall 32 Projection 33 Side wall 34 Projection 35 Convex bottom 36 Projection

Claims (1)

[Claims] 1. A stick for automatic insertion, which has a substantially rectangular cylindrical shape as viewed from the axial direction, is disposed in an inclined state, and is capable of transporting an electronic component while sliding on the inner surface. A stick for automatic insertion, wherein a ridge (3B) is formed at a position where the electronic component slides.