JPH08167792A - Bulk case - Google Patents

Abstract

PURPOSE: To prevent a shutter from being closed or opened unintendedly, which is used for closing an opening for supplying chip parts to a bulk cassette, in a bulk case to be used by attaching to a bulk cassette for sending the chip parts to a supply position to a parts mounting machine. CONSTITUTION: A bulk case 1 has a storing portion 2 surrounded by an outer base 3 for storing many chip parts and a linkage section 4 for connecting an outer base 3 to the bulk cassette sending the chip parts to the supply position to a parts mounting machine; and a shutter 8 for closing an opening 5 formed to the linkage section 4 is arranged in a freely sliding manner inside an L-type strip-shaped guide groove 6 formed on the outer base 3 near the opening section 5 and its vicinities. Sudden closing of the shutter 8 is prevented by jointing a linkage projected portion 11 to a linkage recessed portion 13 respectively provided on an inner surface of the outer base 3 forming a guide groove 6 and the shutter 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to supplying a chip component to a bulk cassette in a bulk case for mounting and using the chip component in a bulk cassette for delivering the chip component to a supply position to a component mounting machine. An object of the present invention is to provide a novel bulk case in which a shutter for closing an opening is prevented from being opened and closed carelessly.

[0002]

2. Description of the Related Art Chip parts (electronic parts) on a printed circuit board
There is known a high-speed chip component mounting machine for mounting. This will be briefly described with reference to FIGS. 9 and 10.

Reference numeral a is a high-speed chip component mounting machine, which is provided with a component supply unit b for supplying chip components in a bulked state, that is, in an unloaded state, to a printed circuit board at a substantially central portion. c is a moving base of the component supply unit b, and a large number of bulk cassettes d, d, ...
Are arranged in the moving direction of the moving base c.

The bulk cassette d is known, and its front end is engaged with the front end of the moving base c, and the clamp claw f provided at its rear end is engaged with the moving base c by operating the clamp lever e. By combining
It is attached to the moving base c.

Reference numeral g denotes a bulk case (see FIG. 12), and a large number of chip parts (not shown) are housed in the bulk case g. The bulk case g is provided with a thin box-shaped storage part h and an engagement part i for connecting the bulk cassette d, and chip parts are stored in the storage part h.
The engaging portion i is formed with an opening j for supplying the chip component to the bulk cassette d. And the opening j
Is opened and closed by a shutter k slidably provided in the storage h.

As shown in FIG. 13, the outer casing of the bulk case g has a side surface L extending from the end surface on which the engaging portion i is formed and the side surface adjacent to the end surface, that is, the upper surface. A guide groove kg formed of a band-shaped space having a letter shape is formed, and a shutter k formed of a synthetic resin film is slidably accommodated in the guide groove kg. A facing hole kb for exposing the knob ka of the shutter k to the outside is opened on the upper surface of the outer casing.

The bulk case g is attached to the bulk cassette d with the engaging portion i engaged with the guide portion 1 of the bulk cassette d (see FIG. 11), and the shutter k is slid to open the opening. Open j. In this way, the bulk case g is set in the bulk cassette d.

When the chip part is taken out from the bulk case g, when the feed lever m of the bulk cassette d is pressed downward by a pressing portion (not shown), positive pressure air is supplied from the positive pressure air supply hole n, thereby The chip parts go through the chute o and the parts supply part p near the front end.
(See FIG. 11).

The chip components supplied to the component supply section p are taken out by the suction nozzles q and q (see FIG. 10) and mounted on the printed circuit board.

[0010]

In the bulk case g as described above, since the shutter k is made of a synthetic resin film and can be opened and closed with a very light force, the shutter k is unsatisfactory. There is a problem that it is easy to open and close easily.

For example, if the shutter k is opened by vibration or the like during transportation of the bulk case g, or if the shutter k is accidentally opened during work such as when loading or unloading in a warehouse, it is stored in the bulk case g. This may cause chip parts to pop out, resulting in damage or damage to parts. Also,
If the shutter k of the bulk case g is closed during the operation of the bulk cassette d due to the vibration of the mounting machine a or the like, the supply of chip components will be hindered.

[0012]

In order to solve the above problems, the present invention provides a storage unit surrounded by an outer casing for storing a large number of chip components, and supplying the chip components to a component mounting machine. The engaging portion for engaging the outer casing with the bulk cassette delivered to the position, the opening formed in the engaging portion for supplying the chip component from the storage portion, and closing the opening. Therefore, in a bulk case provided with a shutter that slides in a guide groove having a band-shaped space formed in the outer casing around the opening and in the vicinity thereof, an engaging convex portion and an engaging concave portion or an engaging portion that engage with each other. The compound convex portions are provided on the inner surface of the outer casing defining the guide groove and the shutter, respectively.

[0013]

According to the present invention, the engaging convex portion and the engaging concave portion that engage with each other are provided on the inner surface of the outer casing defining the guide groove and the shutter, respectively, and an external force greater than a predetermined value is applied to the shutter. By preventing the engagement from being disengaged unless it is done, it is possible to prevent the shutter from being opened and closed accidentally.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The bulk case of the present invention will be described below with reference to the illustrated embodiments.

FIGS. 1 to 3 show a first embodiment of the bulk case of the present invention.

In the figure, reference numeral 1 is a bulk case, and 2 is an accommodating portion thereof.

The accommodating portion 2 comprises an outer casing 3 having a flat box shape, and the outer casing 3 is formed of plastic which has been subjected to antistatic treatment. Further, it is made transparent so that the chip components housed inside can be visually recognized from the outside.

An engaging portion 4 serving as a connecting portion for connecting to the bulk cassette is integrally formed at one end of the storage portion 2. The engaging portion 4 is formed with an opening 5 for communicating the inside and outside of the storage portion 2.

The outer casing 3 has an end face portion 3a on which the engaging portion 4 is formed and one side face portion adjacent to the end face portion 3a, that is, the upper surface wall 3
By b and the inner wall 3c located inside these surfaces, a guide groove 6 formed of a strip-shaped space having a substantially L-shaped side surface is formed. An opening 5c having substantially the same shape and size as the opening 5 is formed at a portion of the inner wall 3c corresponding to the opening 5. Further, the upper surface wall 3 b of the outer casing 3 has a facing hole 7 communicating with the guide groove 6.
Is opened.

A shutter 8 is slidably accommodated in the guide groove 6. The main body 9 of the shutter 8 is formed of a highly flexible synthetic resin film, and when the shutter 8 is slid in the direction of closing the opening 5, the shutter 8 is deformed following the curved portion of the guide groove 6. It is supposed to be done.

Reference numeral 10 denotes a knob, which is provided at a position near the end of the main body 9 opposite to the opening 5.
The knob 10 is integrally formed with the main body 9 by, for example, synthetic resin. The knob 10 is located in the facing hole 7 formed in the outer casing 3.

Reference numeral 11 is an engaging convex portion, and 12 is a protruding portion, which are formed integrally with the shutter 8 and are located on both sides of the knob 10 with the knob 10 interposed therebetween. That is, the engaging protrusion 11
Is projected upward at a position near the end on the side opposite to the opening 5, and the projection 12 is projected upward at a position close to the baffle opening 5 side from the knob 10.

Reference numeral 13 denotes an engaging recess, which is formed on the inner surface of the upper surface wall 3b at a position slightly offset from the facing hole 7 toward the side opposite to the opening 5.

Therefore, the shutter 8 is provided between the open position shown in FIG. 1, that is, the position where the opening 5 is opened, and the closed position shown in FIG. 2, that is, the position where the opening 5 is closed. The shutter 8 is slid and moved by moving the knob 10 so that the knob 10 faces the hole 7.

At the open position of the shutter 8, as shown in FIG. 1, the engaging projection 11 is engaged with the engaging recess 13 so that the shutter 8 is not accidentally closed. It has become.

When the shutter 8 is in the closed position, as shown in FIG. 2, the shutter 8 is deformed according to the curvature of the guide groove 6, and the protrusion 12 thereof is the outer casing 3.
Since it is in elastic contact with the inner surface of the top wall 3b of
This serves as resistance against the movement of the shutter 8 in the opening direction. Therefore, since the shutter 8 does not inadvertently move due to a slight vibration or the like, the shutter 8 may be slightly adjusted when handling the bulk case 1 during transportation by a truck or when entering or leaving the warehouse. Open it,
The chip parts filled inside the bulk case 1
It is possible to prevent an accident such as jumping out of the chip and damaging the chip component.

In this embodiment, the projection 1 is provided on the shutter 8.
2 shows an example in which the outer casing 3 is formed, as shown in FIG.
A plurality of protrusions 14, 14, ... Are formed on the inner surface of the, and the elastic contact between the shutter 8 and these protrusions 14, 14, .. May occur.

Further, the height of the engaging convex portion 11 is closely related to the amount of depression of the corresponding engaging concave portion 13, and when the height of the engaging convex portion 11 is too high, the engaging concave portion 13 is formed. The engagement with the shutter 8 becomes difficult and the opening and closing of the shutter 8 becomes difficult. On the contrary, if the height of the engaging convex portion 11 is too low, the engagement with the engaging concave portion 13 becomes weak. Will open and close. Therefore, it is necessary that the height of the engagement protrusion 11 and the amount of depression of the engagement recess 13 satisfy appropriate conditions, and other elements (for example, the shapes and formation positions of the engagement protrusion 11 and the engagement recess 13). , The number of formation, etc.) can be arbitrarily designed.

For example, as shown in FIG. 5, an engaging convex portion 11A is formed on the inner surface of the upper surface wall 3b, and an engaging concave portion 13A that engages with the engaging convex portion 11A is formed in the shutter 8, or, as shown in FIG.
As shown in FIG. 5, engaging projections 11B and 11C that engage with each other may be formed on the inner surface of the upper surface wall 3b and the shutter 8, respectively.

FIG. 7 and FIG. 8 show the second bulk case of the present invention.
2 shows Example 1A of FIG.

The bulk case 1A according to the second embodiment is the same as the first embodiment except that a plurality of pairs of engaging concave portions and engaging convex portions are provided on the upper surface wall 3b of the outer casing 3 and the shutter 8. Since it has the same configuration as that of the first embodiment,
The same reference numerals are given to the same portions in the embodiment, and description thereof will be omitted.

Reference numeral 15 denotes an engaging recess, which is formed on the inner surface of the upper surface wall 3b at a position slightly offset from the facing hole 7 toward the opening 5 side. When the shutter 8 reaches the position where the shutter 8 closes the opening 5, the projection 12 of the shutter 8 is inserted into the engaging recess 15.
Are to be engaged.

Therefore, the shutter 8 is provided between the open position shown in FIG. 7, that is, the position where the opening 5 is opened, and the closed position shown in FIG. 8, that is, the position where the opening 5 is closed. The shutter 8 is slidable, and the shutter 8 is moved by moving the knob 10 located in the facing hole 7 in the facing hole 7.

At the open position of the shutter 8, as shown in FIG. 7, the projection 11 is engaged with the engaging recess 13 so that the shutter 8 is not inadvertently closed. Has become.

When the shutter 8 is in the closed position, the protrusion 12 is engaged with the engagement recess 15 as shown in FIG.
The shutter 8 is prevented from being opened carelessly by being engaged with.

Therefore, the shutter 8 of the bulk case 1A does not easily open and close during transportation or the like.

[0037]

As is apparent from the above description, according to the invention of claim 1, the inner surface of the outer casing defining the guide groove and the engaging convex portion provided on the shutter are engaged with each other. By engaging the fitting concave portion or the engaging convex portion, it is possible to prevent the shutter from being opened and closed by some bounce, and to prevent the parts in the bulk case from popping out.

According to the second aspect of the present invention, the engaging projection and the engaging recess that engage with each other are provided on the inner surface of the outer casing defining the guide groove and the shutter, respectively, and the shutter is provided. Alternatively, a protrusion is formed on the inner surface of the outer casing that defines the guide groove so that the shutter does not easily close due to the engagement of the engaging portions when the shutter is opened. When moving to
Since the shutter is prevented from being easily opened by the resistance generated by elastic contact of the protrusion with the outer casing or the shutter, it is possible to prevent an unexpected opening / closing operation of the shutter with a simple configuration.

According to the third aspect of the present invention, a plurality of pairs of engaging convex portions and engaging concave portions that engage with each other are provided on the inner surface of the outer casing defining the guide groove and the shutter, respectively. Along with the first when the shutter is closed
The engaging convex portion and the engaging concave portion are engaged to prevent the shutter from being opened easily, and when an external force of a predetermined amount or more in the shutter opening direction is applied,
The shutter is easily closed by disengaging the first engagement protrusion and the engagement recess, and further engaging the second engagement protrusion and the engagement recess when the shutter is opened. Since the shutter is prevented from unintentionally moving, the shutter can be prevented from moving unexpectedly and the function of the stopper can be made more reliable.

[Brief description of drawings]

1 shows a first embodiment of the bulk case of the present invention together with FIG. 2 and FIG. 3, and this figure is an enlarged cross-sectional view of an essential part showing a state in which a shutter is opened.

FIG. 2 is an enlarged cross-sectional view of a main part showing a state in which a shutter is closed.

FIG. 3 is a perspective view with a part cut away.

FIG. 4 is an enlarged cross-sectional view of the main parts showing a modified example in which the protrusion is formed on the outer casing side of the bulk case.

FIG. 5 is an enlarged cross-sectional view of a main part showing a modified example of the engagement relationship between the engagement protrusion and the engagement recess.

FIG. 6 is an enlarged cross-sectional view of a main part showing a modified example in which the engaging protrusions are engaged with each other.

7 shows a second embodiment of the bulk case of the present invention together with FIG. 8, and this figure is an enlarged cross-sectional view of an essential part showing a state in which a shutter is opened.

FIG. 8 is an enlarged cross-sectional view of a main part showing a state where a shutter is closed.

9 is a schematic view of the component mounting machine together with FIG. 10, and is a perspective view.

FIG. 10 is a side view.

FIG. 11 is a perspective view showing a bulk cassette and a bulk case.

FIG. 12 is a perspective view showing a conventional bulk case.

FIG. 13 is an enlarged cross-sectional view showing a main part of a conventional bulk case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bulk case 2 Storage part 4 Engagement part 5 Opening part 6 Guide groove 8 Shutter 11 1st engaging convex part 11A, 11B, 11C Engaging convex part 12 Projecting part 13 1st engaging concave part 13A Engaging concave part 14 Projection 1A Bulk case 12 Projection (second engaging projection) 15 Second engaging recess a Component mounting machine

Claims (3)

[Claims] 1. A member for engaging an outer casing with a storage unit surrounded by an outer casing for accommodating a large number of chip components and a bulk cassette for delivering the chip components to a supply position to a component mounting machine. A joint portion, an opening formed in the engaging portion for supplying the chip component from the storage portion, and a band-shaped space formed in the outer casing around the opening and in the vicinity thereof to close the opening. In a bulk case having a shutter that slides in a guide groove having, an engaging convex portion and an engaging concave portion or an engaging convex portion that engage with each other, and an inner surface of an outer casing defining the guide groove. A bulk case characterized by being provided on the shutter and the shutter respectively. 2. The bulk case according to claim 1, wherein a protrusion is formed on an inner surface of the outer casing defining the shutter or the guide groove, and the protrusion is formed when the shutter is opened. By engaging with the engaging recess, movement of the shutter in the closing direction is blocked, and when the shutter is moved in the opening direction, resistance is generated due to elastic contact of the protrusion with the outer casing or the shutter. A bulk case characterized by that. 3. The bulk case according to claim 1, wherein a plurality of pairs of engaging protrusions and engaging recesses that engage with each other are provided on the inner surface of the outer casing defining the guide groove and the shutter, respectively. When the shutter is closed, the movement of the shutter is blocked by the engagement of the first engaging convex portion and the engaging concave portion, and an external force of a predetermined amount or more is applied in the opening direction of the shutter. In some cases, the first engagement protrusion and the engagement recess are disengaged from each other, and the second engagement protrusion and the engagement recess are engaged when the shutter is opened. And bulk case.