JPS5918717Y2 - Stopper for electronic component storage cartridge - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a stopper for an electronic component storage cartridge, and is particularly suitable for storing a large number of small electronic components such as chip capacitors in a stacked state and attaching them to a circuit board such as a printed circuit board. The present invention relates to a stopper that closes one end of an electronic component storage cartridge that can be delivered directly from the cartridge to a mounting location and is used for storage, transportation, and mounting.

BACKGROUND OF THE INVENTION Recently, electronic components have become smaller, and small components such as chip capacitors (also referred to as multilayer capacitors) have become widely used.

This type of component has very small external dimensions, for example, a chip capacitor is 3.2mm (horizontal) x 6mm (vertical) x
o, it only has a size of about 6 mm (thickness).

Therefore, it would be very inefficient to manually attach these to the printing board one by one.

To deal with this, conventionally, when mounting electronic components on a printed circuit board, a jig is prepared that has recesses that correspond to the positions and allow the electronic components to fit T degrees, and these recesses of this jig are Each electronic component was mounted by hand, one at a time, and a jig was pressed onto the printed circuit board by applying adhesive to align the components with the printed circuit board.

As described above, conventional methods have low work efficiency and are difficult to automate.

In order to eliminate such defects of the conventional ones, the inventors of the present invention first proposed a cartridge for storing electronic components.
(No. 44148, No. 54-152960), electronic components are stored in a stacked state while maintaining a certain posture, making it convenient for storage and transportation, and automatic installation of electronic components at printed wiring sites is an easy task. made possible.

To briefly describe using FIG. 1 showing an embodiment of the present invention,
The above-mentioned cartridge 1 is composed of a long rectangular or square cylinder 3 made of plastic, and has a through hole 2 with a constant cross-sectional area inside so that a large number of electronic components such as chip capacitors 6 can be stored in a fixed orientation. Furthermore, the upper open end is closed with an elastic stopper 4, and the lower open end is closed with a similar stopper.

Such cartridges can store and store small electronic components while maintaining a constant orientation (for example, the connection terminals of chip capacitors are coated or plated on both long sides), making them convenient for storage and transportation, and easy to install on-site. The work has become much more efficient.

However, despite these benefits, support for small electronic components has not always been satisfactory.

In other words, the cartridge described above has plugs of the same shape inserted into the upper and lower open ends to hold down small electronic components, but it is thin and the coating and baking of electrodes, etc. prevents variations in the thickness of each component. do not have.

For example, if 200 chip capacitors are to be stored, the total thickness of the stacked chip capacitors for a 15 cm long cartridge may vary by about 5 mm due to cumulative thickness errors.

Therefore, if a plug is simply used, the small electronic components within the cartridge may change direction or wobble within the through hole, making automatic installation an obstacle.

Japanese Utility Model Publication No. 47-16198 discloses that in addition to closing the end of the cylindrical cartridge with a lid (which has the same role as the stopper described above), stoppers are inserted into numerous holes in the peripheral wall of the cylindrical cartridge. It is described that it prevents rattling of electronic components housed inside the device.

However, with this technique, the parts cannot be held unless the positions of the parts and the stopper exactly match, and furthermore, the operability is troublesome as the stopper must be inserted and pulled out each time.

Purpose of the Invention The object of the present invention is to eliminate rattling between a large number of electronic components housed inside a cylindrical cartridge and to ensure that they are properly held.

Summary of the invention The above object of the invention is to provide a cylindrical cartridge having a flange that frictionally engages with the outer periphery of the end of a cylindrical cartridge for storing electronic components in a stacked state in a through hole, and formed at one end of the cylindrical car. This is achieved by a stopper for an electronic component storage cartridge, characterized in that an operating piece is integrally formed that abuts the stacked electronic components through a vertically elongated slit.

According to the present invention, the stopper can be freely positioned within the length range along the cartridge and can remain stationary at that position, even if there is wobbling in the stacked electronic components in the cartridge. By sliding the stopper to a predetermined position, electronic components can be held securely and properly.

Description of examples The invention will be explained in detail below with reference to examples.

FIG. 1 illustrates an electronic component storage cartridge 1 equipped with a stopper according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a bottom view thereof.

In the following explanation, the electronic component will be described as a chip capacitor, but the present invention can be applied to any other component such as a resistor.

A chip capacitor has the above-mentioned dimensions or similar dimensions, and generally has a continuous conductor film made of metal paint or plating along both vertical sides, with a portion of the conductor film wrapping around the top and bottom surfaces.

The cartridge 1 includes a rectangular cylinder body 3 having a substantially square outer shape and a through-hole 2 having a rectangular cross section in which a chip container 6 can be slidably accommodated, a plug body 4 that is removably inserted into the through-hole 2 from above, A stopper 7 is movably inserted into the lower end of the through hole 2.

Further, locking holes 5 are formed on both sides of the rectangular cylinder 3,
It can be fitted with a mechanism such as a locking protrusion or a ball click provided on the support frame side of a jig for supporting the cartridge 1.

Here, chip containers 6, which are made of a durable plastic material with good sliding properties such as 66 nylon by injection molding or the like, and which are preferably housed in a stacked state inside the rectangular cylinder 3, can be seen through.

The plug body 4 is molded from a flexible resin such as styrene, and the through hole 2 is formed to have approximately the same external dimensions as the chip container 6.

The plug body 4 serves to hold the chip container 6 so that it does not fall out of the through hole 2.

At the lower end of the rectangular cylinder 3, the rectangular through hole 2 terminates in a substantially square bottom edge via a tapered portion 9 smoothly connected thereto, as shown in FIG.

This is provided for the purpose of smoothly guiding the storage of the chip capacitor 6.

Furthermore, a slit 8 is vertically cut into one side wall of the square cylinder 3 at the bottom edge.

As shown in FIGS. 3 and 4, the stopper 7 inserted into the lower end of the rectangular cylinder 3 includes a flange 10 and a flange having an inner hole sized to frictionally fit into the outer periphery of the rectangular cylinder 3. It consists of a stop piece 12 projecting inwardly from 10 through a connecting piece 11 having a width smaller than the width of the slit 8.

The stop piece 12 has an outer dimension slightly larger than that of the through hole 2, so that it can freely move within the through hole 2 when the stopper is fitted to the lower end of the rectangular cylinder 3.

In the above configuration, when storing the chip capacitors 6 in a stacked state, the plug 4 is fitted to the upper end of the rectangular cylinder 3 as shown in FIG. (Actually, the rectangular tube is held horizontally or upside down) and is stored in the hole 2.

In this case, the total thickness of the 200 parts will be approximately constant, but due to manufacturing errors, the height of the bottom layer (as seen in Figure 1) may vary within a range of several mm.

However, the stopper 7 is connected to the slit 8 by the joining piece 11.
If it is fitted to the lower end of the rectangular cylinder 3 so that they match,
The stop piece 12 of the stopper 7 can firmly press the lowermost chip container 6.

Therefore, the position and orientation of the chip capacitor 6 are always maintained irrespective of manufacturing errors of the chip capacitor, and the effect of preventing rattling during transportation and problems during installation can be obtained.

Furthermore, in order to attach electronic components to a printed circuit board using the electronic component storage cartridge of the above embodiment, as shown in FIG. Chip capacitors can be supplied one by one from the upper end of the rectangular cylinder 3 to the required locations.

Referring now to FIGS. 5 to 8, the cartridge 1 includes an elastic member 26 which is provided in the support frame 20 of the jig and has a U-shaped horizontal cross section and is provided with a protrusion 21 that engages with the locking hole 5.
The chip container 6 is pressed against a suction plate 23 having a suction port 22 at a position corresponding to the upper opening of the through hole 2 by the pressing force of the push rod 13 which is supported by and operated intermittently.

Here, the suction plate 23 is a movable member from which the air in the internal space 24 is evacuated by a vacuum pump or the like.

It should be noted that the suction plate 23 has suction ports 22 at several locations corresponding to the mounting locations of the printed circuit board 25, and a corresponding number of cartridges 1 are used.

Next, the suction plate 23 is raised in the direction of arrow A and moved onto the printed circuit board 25 as shown in FIG. Bring it into close contact.

In this case, if a temporary adhesive is applied to the mounting portion of the printed circuit board, the chip capacitor 6 will be mounted on the printed circuit board 25 as shown in FIG.

As described above, the stopper of the present invention can always properly hold and position electronic components within the electronic component storage cartridge, thereby increasing the effectiveness of the electronic component storage cartridge.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of a first embodiment of an electronic component storage cartridge equipped with a stopper of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a bottom view of the same, and Fig. 4 is an exploded perspective view of the bottom surface of the same, FIG. 5 is a front sectional view showing the usage state of the same embodiment, FIG. 6 is a partial sectional view showing a more detailed usage state of the same embodiment, and FIG. FIG. 8 is a partial cross-sectional view showing the next step, and a cross-sectional view showing electronic components attached to the printed circuit board.

Claims (1)

[Scope of utility model registration request] A cylindrical cartridge that stores electronic components in a stacked state in a through hole has a flange that frictionally engages with the outer periphery of the end of the cylindrical cartridge. A stopper for an electronic component storage cartridge characterized by integrally forming a stop piece that comes into contact with an electronic component.