JP2002145382A - Tray for fixedly housing ic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an IC storage tray which can house even a plurality of ICs largely differing in size in a single tray and which can stably fix all of the housed ICs. SOLUTION: The tray 1 has a storage section for housing ICs on an upper surface of the tray 1 and, on a lower surface of the tray, has a spring portion 9 including a leaf spring 91 at a position corresponding to an end of an upper surface of an IC housed in the section 2 formed on a lower tray when trays are stacked.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a tray for storing, storing, and transporting ICs.

[0002]

2. Description of the Related Art Conventional IC storage trays are used to prevent the generation of dust and damage to plating, terminals, surface printing, etc. due to collision between the IC and the tray due to vibration during transportation.
In this case, a tray having a pocket for accommodating an IC having a size corresponding to the above-mentioned size was used. That is, the IC has been shaped so that the side surface of the storage pocket and the side surface of the IC are in close contact with each other, or the IC is pressed down from above by a hard support material protruding from the lower surface of the upper tray when the trays are stacked. The plurality of storage pockets formed on the tray were all formed in the same shape.

[0003] However, especially in the case of a large and heavy IC, the generation of dust and the damage of plating, terminals, surface printing and the like as described above are likely to occur.
When the C body is made of ceramic or the like, the dimensions vary greatly and cannot be accommodated in the conventional tray as described above, and the tray is designed and manufactured in consideration of such variations. This is very difficult and costly. On the other hand, if an IC having a variation in dimensions can be accommodated regardless of the difference in the dimensions, the storage pocket is formed with a margin larger than the size of the IC, and the IC moves in the storage pocket. Generation of dust and damage such as plating, terminal printing, and surface printing may occur.

[0004]

Therefore, even if a plurality of ICs have large dimensional variations, it is possible to store them in one tray and to stably fix all the stored ICs. It has been desired to provide a possible IC storage tray.

[0005]

Means for Solving the Problems In order to solve the above problems, the present invention has a storage section for storing ICs on the upper surface of a tray, and is formed on the lower tray when the tray is stacked on the lower surface of the tray. A spring portion having a leaf spring at a position corresponding to an upper end of the IC housed in the housing portion.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a tray, which has an appropriate number of storage pockets 2 as storage portions for storing ICs surrounded by side walls 3 and a bottom plate 4, and has a mounting table 5, legs 6, side edges 7, and side legs 8. And a spring body 9.

The tray body 11 is made of thermoplastic synthetic resin such as polystyrene, polyethylene, polypropylene, vinyl chloride resin or the like, or conductive graphite for giving them conductivity or elasticity to prevent static electricity.
It is formed by injection molding or the like using a material to which a reinforcing material such as rubber such as carbon black, carbon fiber, or polybutadiene having elasticity is added.

The storage pocket 2 is a space serving as a storage portion for storing the IC 10 and is formed by being surrounded by the bottom plate 4 and the side wall 3. The storage pockets 2 are formed in an appropriate size and an appropriate number according to the size of the IC 10 to be stored. A protruding mounting table 5 is formed on the bottom plate 4 at the four corners of the storage pocket 2, and when the IC 10 is stored in the storage pocket 2, the IC 10
Is placed on the mounting table 5. Of course, the mounting table 5 is not limited to the four corners of the storage pocket 2 on the bottom plate 4 and may be formed over the outer periphery on the bottom plate 4 or may not be formed at all.

The side wall 3 is formed around the outer periphery of the storage pocket 2 so as to be higher than the upper end of the IC 10 when the IC 10 is stored in the storage pocket 2, and has a height of about half of the side wall 3 on its side. The footrest 31 is formed. Note that the side wall 3 does not necessarily need to be formed over the entire outer periphery of the storage pocket 2.

Holes 42 are formed in the bottom plate 4 so as to be large and small in number in order to reduce the weight of the tray 1 and to save raw materials. In addition, an insertion hole 41 for coupling the tray body 11 and the spring portion 9 is provided in a storage pocket. It is formed at the position where the diagonal lines of the four corners of 2 intersect.

The leg 6 is planted so as to be positioned on the leg base 31 of the lower tray 1 when the trays 1 and 1 are stacked from the lower surface of the bottom plate 4, and one or more of the legs 6 are arranged on one side of the storage pocket 2. The height is such that when the trays 1 and 1 are overlapped, the footrest 31 of the lower tray 1 does not contact when the IC 10 is not housed, and when the trays 1 and 1 are stacked, the footrest 31 is housed. The height of the storage pocket 2 is maintained to be equal to or higher than the sum of the height of the IC 10 stored in the pocket 2 and the height of the spring portion 9.

The leg 6 sandwiches the side wall 3 between the side walls 3 on one side partitioning the adjacent storage pockets 2, 2 by the two legs 6, 6 to prevent the trays 1, 1 from laterally shifting. IC1
0, 10 ... is stored and trays 1, 1 ...
10 and the weight of the tray 1 or some external pressure
May be bent. In this case, the legs 6, 6,... Of the upper tray 1 come into contact with the leg bases 31, 31 of the lower tray 1, and further lowering of the tray 1 is prevented. And IC
10 to prevent damage.

The side edge 7 is an edge protruding around the outer periphery of the tray body 11, and when the trays 1 and 1 are stacked, the upper tray 1
Where the side legs 8 are placed. The side leg 8 is a leg for supporting the tray 1 erected downward from the side edge 7.

The spring portion 9 includes leaf springs 91, 91.
And an insertion protrusion 921, and is formed by injection molding or the like using an elastic synthetic resin. The synthetic resin to be used is not particularly limited as long as it has appropriate elasticity, but it is recommended to mold with a polyacetal having excellent fatigue resistance and excellent mechanical properties such as bending strength.

The spring portion 9 is formed by extending an appropriate number of leaf springs 91 from the side surface of the base portion 92 and projecting an insertion projection 921 on the upper surface of the base portion 92. The base 92 is the bottom plate 4
And becomes a fulcrum of the leaf spring 91. The leaf spring 91 is formed in a plate shape having an appropriate width and extending from the side surface of the base 92 so that its tip is close to the other opposing leg 6 in parallel with the one opposing leg 6. It is.

More specifically, one leaf spring 91 is extended from one side of the rectangular base 92 so that the base 92 and the leaf springs 91 are located linearly from the short side of the base 92. At the same time, the base 92 and the plate springs 91, which are orthogonal to the plate springs 91, 91, are formed so as to extend from one side surface of the base portion 92, respectively. Of course, the spring portion 9 is not limited to such a shape, but a cross shape or a rectangular shape formed by extending four leaf springs one by one from the four side surfaces of one base. It is also possible to form a well shape or the like formed by extending eight leaf springs each of two from the four side surfaces of the base.

The upper surface of the base portion 92 of the spring portion 9 contacts the lower surface of the bottom plate 4, but the upper surface of the plate spring 91 is formed lower than that of the base portion 92. Is formed so as to have an appropriate space for raising and lowering.
Further, the lower surface of the distal end portion of the leaf spring 91 is formed obliquely downward toward the distal end, or the leaf spring 91 itself extends downward from the base portion 92 toward the distal end.

The insertion protrusion 921 is formed on the upper surface of the base 92 so as to be capable of being inserted into the insertion hole 41, and the insertion protrusion 921 is inserted into the insertion hole 41 to connect the tray body 11 to the spring portion 9. Things.

The spring portion 9 may be formed by connecting an appropriate number of spring portions 9, 9... With a connecting rod 93 for convenience of mounting on the tray body 11 and for convenience of molding. Good. The connecting rod 93 is interposed between the bases 92, 92. The connecting rod 93 may come into contact with the bottom plate 4 when the spring part 9 is installed on the tray body 11, but it does not come into contact with the stored IC 10. Is formed higher than the bottom surface of the spring portion 9. In this case, a cutout 61 reaching the bottom plate 4 is formed in the leg 6, and a connecting rod 93 is passed through the cutout 62 to form the springs 9, 9,.
Is installed.

The spring portion 9 may be formed integrally with the tray main body 11 instead of being formed separately, or may be formed separately and then attached by non-detachable bonding or the like. Only the leaf spring may be directly extended from the bottom plate 4 or the leg portion 6 without the base portion 92.

When the IC is stored, the mounting tables 5, 5,.
C10 is placed, and the side legs 8 of another tray 1 are placed on the side edge 7 of the tray 1 in which the ICs 10, 10... Are stored, and the trays 1, 1,. In this case, the leaf springs 91 of the spring portion 9 installed on the upper tray 1 are
The upper end of the IC 10 stored in the storage pocket 2 is pressed, and the IC 10 is fixed in the storage pocket 2.

[0022]

As described above, according to the first aspect of the present invention, the storage portion for storing the IC is provided on the upper surface of the tray, and the storage portion formed on the lower tray when the tray is stacked on the lower surface of the tray. A spring portion is provided, which has a leaf spring at a position corresponding to the upper end of the IC housed in the portion. Therefore, even if a plurality of ICs have large variations in size, the IC can be pressed from above by the leaf spring. Therefore, even if the tray is not strictly compatible with the dimensions of the IC and has a storage section in which the IC cannot be fixed, all trays that can be stored in one tray without regard to the dimensions of the IC It has become possible to stably store ICs.

According to the second aspect of the present invention, when the trays are stacked, the leaf portion extends in the outer peripheral direction of the storage portion of the lower tray, and the tip portion of the leaf spring extends into the storage portion of the lower tray. At least two ICs to be housed are formed so as to be located at both ends of the upper surface facing each other, and the lower surface of the distal end of the leaf spring is inclined downward toward the distal end. In addition to supporting various sizes of ICs, it is possible to hold ICs of a wide range of sizes without fail, and from its operation, by pressing the upper end of the IC obliquely from above, more stable and reliable In addition, the IC can be fixedly housed without adversely affecting its function.

According to the third aspect of the present invention, since the spring portion is detachably provided on the tray main body, the spring portion can be used as a tray without a leaf spring, and the tray can be widely used. is there.

According to the fourth aspect of the present invention, since the spring portions corresponding to the respective storage portions are connected to each other and formed in series, it is not necessary to attach the spring portions one by one at the time of mounting on the tray main body. It is convenient and convenient at the time of molding.

[Brief description of the drawings]

FIG. 1 is a partial bottom perspective view of one embodiment of the present invention.

FIG. 2 is a partial top view of one embodiment of the present invention.

FIG. 3 is a cross-sectional view of FIG. 2A-A.

FIG. 4 is a cross-sectional view of FIG. 2BB

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tray 11 Tray main body 2 Storage pocket 3 Side wall 4 Bottom plate 5 Mounting table 6 Leg part 7 Side edge 8 Side leg 9 Spring part 91 Leaf spring 92 Base part 921 Insertion protrusion 93 Connecting rod 10 IC

Claims (4)

[Claims] 1. A storage section for storing ICs on the upper surface of a tray, which corresponds to an upper end of the IC stored in a storage section formed in a lower tray when the trays are stacked on the lower surface of the tray. An IC-fixed storage tray having a spring portion provided with a leaf spring at a location. 2. A spring portion wherein a leaf spring is extended in the outer peripheral direction of the storage portion of the lower tray when the trays are stacked, and the tip portion thereof is opposed to at least the number of ICs stored in the storage portion of the lower tray. 2. The IC fixed storage tray according to claim 1, wherein the tray is formed so as to be located at both ends of the upper surface, and the lower surface of the distal end portion of the leaf spring is inclined downward toward the distal end. 3. The IC fixed storage tray according to claim 1, wherein the spring portion is detachably provided on the tray body. 4. The IC fixed storage tray according to claim 3, wherein spring portions corresponding to the respective storage portions are connected to each other and formed in a series.