JPS6341353Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a buffer member that is inserted into an IC (integrated circuit) tube and is used to fix the IC housed in the tube so that it does not move loosely. Regarding.

[Conventional technology]

Conventionally, when an IC is stored in a tube and transported, etc., if the IC is not fixed in the tube, it moves within the tube and there is a risk of damage due to the impact generated at this time. For example, conventional IC
As shown in Fig. 1, the method of fixing the IC (indicated by b in the figure) in the tube is to house the IC (indicated by b in the figure) in the IC tube a, which has a hollow inverted concave cross section, and to Pins c and c' are removably installed on the pins c and c', and these pins c and c' prevent the IC from moving to the left or right. If the IC is not stored or a part of the IC is used, there will be a gap between both pins c and c' due to the IC gap, which will prevent the IC from being fixed and cause the inside of the tube to move in the axial direction. A problem arises in that the IC moves along the IC, and the impact caused by such movement of the IC sometimes causes damage to the IC.

In order to solve this problem, the case body has a case body in which the center part of the bottom wall protrudes inward over the entire length of the cylinder shaft, a plurality of saw blade-shaped parts that are removably fitted into the case body, and a tip protruding shape that is flat or flat. A packaging case for semiconductor devices has been proposed that is equipped with a semicircular top stopper and uses a foamed resin with a substantially rectangular cross-sectional shape as a shock absorbing material (Japanese Patent Laid-Open No. 1986-1999).
Publication No. 35455).

The case described in JP-A No. 59-35455 is
The IC is locked by inserting the top plug into the IC tube (case body), but in this case, if there is a gap between the top plug and the IC, use a foam resin shock absorber. By filling the gap
This prevents the IC from floating and securely locks the IC.

[The problem that the idea aims to solve]

However, in the case of JP-A No. 59-35455,
In order to fill the above-mentioned gap and lock the IC, a top plug and a synthetic resin shock absorber are required, which increases the number of parts and requires the use of a top plug or shock absorber depending on the size of the gap. If the length has to be changed, for example if a part of the IC stored in the IC tube is taken out, the shock absorbing material must be replaced accordingly, so the operation to lock the IC is necessary. is troublesome.

Therefore, there is a need for a buffer member for an IC tube that can fill the gap that is formed when an IC stored in the IC tube is damaged, without having to replace parts as described above.

Furthermore, since the IC tube buffer member contacts and locks the IC, it is of course necessary to prevent the IC from being damaged due to generation of static electricity or the like at this time.

This invention was developed in response to the above-mentioned demands. When storing an IC in an IC tube, it reliably follows the entire length of the stored IC, and allows the IC to be spaced without any troublesome operations such as replacing parts. IC without
An IC tube that can be fixed in the tube to prevent the IC from moving around and prevent damage to the IC due to static electricity generation, etc., and can easily lock the IC with only one part. The purpose of the present invention is to provide a shock absorbing member for

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention provides a buffer member for an IC tube that is fitted into and fixed in an IC tube having a hollow inverted concave cross section and locks an IC placed on a step in the IC tube. An IC that is housed in the IC tube by forming at least a part of the circumferential side of a flexible conductive synthetic resin cylindrical body so as to be fit into the tube into a bellows shape that can be freely expanded and contracted in the axial direction. The IC is abutted and locked by expanding and contracting the cylindrical body according to the total length of the cylindrical body.

[Effect]

The buffer member of the present invention is usually inserted into an IC tube in a semi-reduced state.
The buffer member of the present invention is a flexible conductive synthetic resin cylindrical body formed to be fitable into an IC tube, and at least a portion of the circumferential side thereof is formed into a bellows shape that is freely expandable and contractable in the axial direction. Since it is axially expandable, it expands and contracts in the axial direction according to the total length of the IC, which varies depending on the number of ICs stored in the IC tube.
For example, even if a gap is created in the IC tube due to the use of a part of the IC, the expansion of the buffer member in the axial direction prevents the gap from being created due to the defect, and creates a new gap in the IC tube. Even when an IC is added into the tube, the buffer member contracts in the axial direction and the IC is always held stably without creating any gaps within the tube.
This reliably prevents accidents such as damage caused by impact caused by the IC moving around inside the tube during transportation.

In this case, the ability to store such an IC in the IC tube without creating a gap is due to the expansion and contraction of the buffer member, so even if the size of the gap changes, the buffer member will reliably follow this movement. Therefore, the IC can be securely locked using only the buffer member without using any other auxiliary means, and
Even if the size of the gap changes, there is no need to replace the buffer member with another one.

In addition, since the buffer member of the present invention is made of flexible synthetic resin and is cylindrical, it can be expanded and contracted in the radial direction. As there is only one part required, just push the buffer member into the tube, so the IC locking operation is easy. Moreover, since the buffer member is made of conductive synthetic resin, there is no damage to the IC due to static electricity generation, etc.
It can safely store ICs.

Below, Figures 2 to 5 will be explained for one embodiment of the present invention.
This will be explained with reference to the figures.

〔Example〕

In the figure, reference numeral 1 denotes a cylindrical shock absorbing member made of a flexible conductive synthetic resin. It is shaped like a bellows. Since the buffer member 1 is made of flexible synthetic resin, it can be expanded and contracted in the radial direction, and its short axis (outer diameter) corresponds to the IC described later.
The distance is slightly larger than the distance between the upper wall of the tube 2 and the stepped portion 3.

Here, the conductive flexible synthetic resin includes powders such as carbon black powder and metal powder, fibrous bodies such as carbon fiber and metal fiber, and conductive substances such as antistatic agents, polyvinyl chloride, polyethylene, and polypropylene. A synthetic resin that has been kneaded and dispersed in a flexible synthetic resin such as , polyamide, polyester, polystyrene, or ABS resin to impart conductivity may be used. In this case, the conductive synthetic resin preferably has a surface resistance value of about 10 ¹⁰ Ω·cm or less, particularly 10 ⁴ to ^{10 8} Ω·cm.

The above-mentioned buffer member 1 is inserted into an IC tube and used for locking and fixing an IC housed in the tube. That is, FIG. 3 shows an IC tube 2, which is formed to have a hollow inverted concave cross section, and an IC 4 is placed and housed in a stepped portion 3 within this tube 2.
When storing the IC4 in the tube 2, a removable pin 5 is installed at one end of the tube 2, and the IC4 is
After storing the shock absorber 1 into the tube 2, insert the buffer member 1 from the other end of the tube 2 so that the tip of the impact member 1 and the end of the IC 4 come into contact between the upper wall of the tube 2 and the stepped portion 3. The buffer member 1 is inserted in a half-reduced state. Therefore, the IC 4 is held between the pin 5 and the buffer member 1, and is stably fixed within the tube 2 without any gaps. In this case, even if a gap is created in the IC tube 2 due to the use of a part of the IC 4, the buffer member 1 arranged in a reduced state
By elongating in the axial direction, gaps due to defects are prevented from being created, and new and different
Even when the IC is added into the tube 2, the buffer member 1 shrinks in the axial direction and the IC4 is inserted into the tube 2.
This ensures that the IC 4 is always held stably without creating any gaps within the tube 2, thereby reliably preventing accidents such as the IC 4 floating around inside the tube 2 during transportation or the like and being damaged by the impact.

In addition, the above-mentioned buffer member 1 has a hollow elliptical cross section and is made of flexible synthetic resin and has flexibility and elasticity, so it can be easily inserted into the tube 2 and the IC 4 can be fixed. In addition to having excellent properties, since the buffer member 1 is made of conductive synthetic resin, IC4 due to the generation of static electricity, etc.
The IC4 can be stored safely without any damage to the IC4.

In the above embodiment, in order to fix the IC 4, the pin 5 was set up at one end of the tube 2, and the buffer member 1 was inserted from the other end. Alternatively, the IC may be inserted and clamped and fixed between two buffer members. In addition, in the above example, the buffer member 1 is formed to have a hollow elliptical cross section, but the shape of the buffer member 1 is not limited to the above-mentioned embodiment, and may be, for example, hollow or square in cross section, so that it can be inserted into the IC tube. It may have any shape.

Further, in the above embodiment, the entire circumferential side portion of the buffer member 1 is formed into a bellows shape, but if necessary, only a part of the circumferential side portion may be formed into a bellows shape that can be expanded and contracted in the axial direction.

[Effect of idea]

As explained above, in the present invention, at least a part of the circumferential side is made of a conductive synthetic resin cylindrical body formed in a bellows shape that can be freely expanded and contracted in the axial direction. Even if the IC is damaged, the IC can always be stored and fixed in a stable state without creating a gap inside the IC tube, and the IC can be prevented from moving around inside the tube, preventing damage to the IC, as well as preventing static electricity, etc. The IC can be stored and stored in the tube while preventing damage caused by damage to the IC.Moreover, this buffer member can be simply inserted into the tube, and no other auxiliary means are required. Since the IC can be reliably stored in the tube by expanding and contracting in the axial direction according to the length of the IC, there is no need to replace it with a different buffer member even if the overall length of the IC changes, and the IC is easy to fix and operate. It is.
Moreover, it has the advantage of being very simple in structure and can be manufactured at low cost.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of a conventional IC tube with an IC stored in it, Fig. 2 is a perspective view showing an embodiment of the present invention, and Fig. 3 is used for the same example. Perspective view of the tube, Figure 4 is inside the tube.
A partially cutaway side view of a state in which an IC is housed and a buffer member according to an embodiment of the present invention is inserted;
FIG. 5 is a sectional view taken along line V-V in FIG. 4. 1...Buffer member, 2...IC tube, 4...
I C.

Claims (1)

[Claims for Utility Model Registration] 1. A shock absorbing member for an IC tube that is inserted into and fixed in an IC tube having a hollow inverted concave cross section and locks an IC placed on a step in the IC tube,
At least a portion of the circumferential side of a flexible conductive synthetic resin cylindrical body formed to be fitable into the IC tube is formed into a bellows shape that can be freely expanded and contracted in the axial direction, and the body is housed in the IC tube. By expanding and contracting the cylindrical body according to the total length of the IC,
It is characterized by that it is designed to abut and lock.
Buffer material for IC tube. 2. The cushioning member for an IC tube according to claim 1, wherein the cylindrical body has a hollow elliptical cross section.