JPS61219000A - Fuel compact housing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Field 1] The present invention relates to a storage device for a fuel compact, and more specifically, when the lid is rotated to seal the opening of the outer container, This invention relates to a fuel compact storage device that prevents the buffering members in the outer container and the inner container from being deformed and the buffering action of the buffering members is inhibited, and allows the fuel compact to be safely stored in the inner container.

[Prior Art and its Problems] Conventionally, there is a fuel compact storage device that accumulates and stores a plurality of fuel compacts vertically.

This fuel compact storage device stores an inner container in an outer container, cumulatively stores a plurality of fuel compacts in the inner container, and then arranges a first buffer member at the opening of the inner container, Further, a second buffer member 11 is placed on top of the first buffer member, and a cylindrical lid is attached to the opening of the outer container so as to cover the second buffer member while rotating. The opening of the container is sealed with the lid.

However, the compact fuel storage device has the following drawbacks.

In other words, when the lid is attached to the opening of the outer container while applying rotational force to the lid, the first and second buffer members are compressed to some extent by the pressing force of the rotating lid, so that the fuel compact does not wobble. While pressing this as shown in the second
Since the buffer member also tends to rotate following the rotation of the lid, the first and second buffer members may be deformed and the buffer member may not be able to properly exert its buffering effect. If the buffering effect of these buffer members is not properly exerted, the fuel compact to be stored will not be damaged.
It will no longer be possible to store it safely.

This invention has been made based on the above circumstances.

An object of the present invention is that even if the lid is attached to the opening of the outer container while being rotated, the buffer member attached to the inner container housed within the outer container does not undergo any deformation. Another object of the present invention is to provide a fuel compact storage device in which the buffering effect of a buffer member on a fuel compact is properly maintained.

[Means for achieving the above purpose] The outline of this invention for achieving the above object is as follows.

A plurality of inner containers for cumulatively storing fuel compacts are housed in the outer container, sandwiched between upper and lower first buffer members such that the 111th impact member protrudes from the upper opening, and the 241st impact member is placed on top of the upper first Is impact member. A fuel compact storage device in which a lid can be attached to an upper opening of an outer container by rotation while a shock member remains in place.

Between the upper first m-th impact member and the inner surface of the lid, the first
The present invention is characterized in that a rotational force transmission prevention means is interposed in the buffer member to prevent transmission of the rotational force of the lid.

In the compact fuel storage device of the present invention, the lid can be attached to the upper opening of the bottomed cylindrical outer container while applying one rotational force to the lid. and a side surface portion overlapping the outer circumferential surface of the outer container. The lid can be attached by, for example, screwing or fitting.

In addition, in this fuel compact storage device, a plurality of fuel compacts are cumulatively stored in the outer container, and a 111th impact member is arranged above the uppermost fuel compact so as to slightly protrude from the opening of the inner container. A 211th impact member is further disposed on the first #l impact member.

This invention basically adds a rotational force prevention means to the compact fuel storage device having such a structure.

The rotational force transmitting means transmits the rotational force of the lid when the lid is attached to the opening of the outer container to the first one located at the opening of the inner container.
No. 11, it may be formed of any structure and any member as long as it does not transmit the force to the impact member.

A more preferable rotational force transmission prevention means is one that does not deform the i1-th impact member and the second buffer member by the rotational force of the lid and can maintain their Im buffering effect.

There are various configurations of such rotational force transmission prevention means, and specifically, for example, between the first buffer member and the 21st buffer member, and between the second buffer member and the inner surface of the lid. a pair of sheet members having a low coefficient of friction, such as a hard synthetic resin plate, arranged between the first loose member and the second buffer member; and an inclusion that can make point contact with the pair of plate members, such as a pole or an inclusion that can make line contact, such as an O-ring, or the upper first buffer member and the second #l impact member. It may also be constructed of a plate-like member interposed between the inner container and the inner container and fixed to the upper opening of the inner container. Needless to say, other configurations outside of this can be considered.

[Effect] The fuel compact storage device in this invention is:

The lid is attached to the opening of the outer container while applying rotational force to the lid, and by attaching the lid, a pressing force is applied to the first buffer member and the second IN shock member to fix the fuel compact accumulated in the inner container. .

If a rotational force preventing means is interposed between the first m shock member disposed at the opening of the inner container and the 5S21 shock member disposed thereon, the rotation force of the lid when the lid is attached will be reduced by the first buffer member and/or is not transmitted to the second Is impact member, and therefore the first #i
The f1 member and/or the second buffer member are not deformed by rotational force, and are compressed only by the pressing force of the lid.

Not only will the stored fuel compact be firmly fixed, but the buffer member will also properly exhibit a buffering effect on the fuel compact.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention.

As shown in FIG. 1, this compact fuel storage device 1 includes a long outer container 3, which is a bottomed cylindrical body that is open at the top and has a male screw 2 formed near the opening, and an inner circumferential surface of the elongated outer container 3. A peripheral side portion 5 having a female thread 4 formed thereon and the outer container 3
The lid 7 is made up of a disc-shaped lid 6 that corresponds to the opening of the outer container 3, and can be attached to the opening of the outer container 3 by screwing the female screw 4 into the male screw 2. It is stored upright on the bottom protection member 8 disposed on the bottom surface.

It has a plurality of inner containers 9, for example six, each having a cylindrical shape with a bottom and opening at the top. The height of this inner container 9 is approximately equal to the height of the outer container 3, and the outer chamber! ! The outer chamber is protected by the protective member IO stretched around the inner peripheral surface of 3! 1
The outer container 3 is housed within the outer container 3 without directly contacting the inner circumferential surface of the outer container 3. Inside this inner container 9, buffer spacers 11 are interposed above and below each fuel compact, and the upper surface of the uppermost fuel compact 12 and the lowermost fuel compact 12 are provided.
A pair of No. 111 located on the lower surface of! A plurality of fuel compacts 12 are accumulated and stored so as to be vertically sandwiched between the fuel compacts 12 and the Ti member 13. Upper first buffer member 1 in inner container 9
3 is located at a height slightly protruding from the opening of the inner container 9.
The upper surface of the first Is impact member 13 is made of a synthetic resin, such as an acrylic resin, and is molded into a disk shape with a diameter approximately equal to the inner circumferential surface of the outer container 3. The coefficient of friction of the lower sheet member 14 is Ii! Place,
A cylindrical second buffer member 15 having a diameter approximately equal to the diameter of the lower seat member 14 is arranged on the upper surface of the lower sheet member 14, An upper sheet member 16 similar to the lower sheet member 14 is arranged.

The fuel compact storage device i having the configuration shown in FIG. 1 stores the fuel compact 12 in the following manner.

That is, first, the 111th impact member 13 is inserted through the opening of the inner container 9 and placed on the bottom surface of the inner container 9.Next, the cylindrical first fuel container 13 is inserted into the inner container 9.
12, and then a buffer spacer 11 is placed on the top surface of the first fuel container) 12! By repeating this operation, the fuel compacts 12 are accumulated and stored in the inner container 9, and finally, the fuel compacts 12 are placed from the opening of the inner container 9. to stand out,
The first buffer member 13 is placed on the top surface of the top fuel convex) 12.
avn, store.

In this way 6 fuel compacts 1 are placed inside the inner container 9 of the tree.
2, the six inner containers 9 are sequentially stored from the opening of the outer container 3 with the lid 7 removed. In addition, six inner containers 9 stored in the outer container 3
If there is a gap between the two, which is inconvenient, the gap may be filled with a protective material such as styrofoam.

After storing the inner container 9 in the outer container 3, the 111th
The lower sheet member 14 is placed on the shock member 13, then the second buffer member 15 is placed on it, and the upper sheet member 16 is further placed on it. Thereafter, the lid 7 is attached to these upper sheet members 1B.

The lid 7 is attached to the outer container 3 by covering the second buffer member 15 and the lower sheet member 14, and screwing the female screw 4 and the male screw 2 together.

At this time, the lid 7 rotates when screwed together, but the lid 7
This upper sheet member 16 has a low coefficient of friction even when a rotational force of 16 is applied to the upper sheet.

This upper sheet member 16 does not rotate following the rotation of the lid 7. Even if this upper sheet rotates slightly following the rotation of the lid 7, the lower surface of this upper sheet member 16 and the 21st impact member 15 and the upper surface of the second
The impact member 15 does not rotate following the rotation of the lid 7.

As the lid 7 is rotated and attached to the opening of the outer container 3, the 211th impact member 15 is compressed by the pressing force, and strongly presses against the lower surface of the upper sheet member 16 and the upper surface of the lower sheet member 14. Even if the second buffer member 15 also rotates due to being pressed, the lower sheet member 14 is interposed on the lower surface of the second buffer member 15, so the rotational force of the lid 7 is transferred to the first buffer member 15. It is not transmitted to the member 13.

In this way, the rotational force of the lid 7 when the lid 7 is attached is effectively prevented from being transmitted to the 111th impact member 13 and the second buffer member 15, and the i*th impact member 13 and the i*th impact member 13 and the None of the 21s impact members 15 are deformed due to rotation, and continue to maintain their cushioning properties.

As a result, when the lid 7 is screwed onto the opening of the outer container 3, the fuel compact 12 has the upper and lower first shock absorbing members 13 and the second* shock absorbing members 15, as shown in FIG. The first shock absorbing member 13 and the second shock absorbing member 13 and the second shock absorbing member 13 and
The Wlf member 15 securely and firmly fixes it within the inner container 9.

In this embodiment, since the protective member 10 is also extended around the inner circumferential surface of the outer container 3, the fuel container 12 is sufficiently protected against lateral impacts.

Next, a second embodiment of the present invention is shown in FIG.

FIG. 3 is a partially cutaway vertical cross-sectional view showing the main parts of the present invention in another embodiment of the present invention.

As shown in FIG. 3, the rotational force transmission prevention means in this embodiment is provided between the plate member 17, the substrate 1B provided on the lower surface of the second buffer member 15, and the plate member 17 and the substrate 18. It has an intervening pole 19.

This plate member 17 is placed on the upper surface of the first buffer member 13 placed on the upper surface of the uppermost fuel compact 12 in the cumulatively stored fuel compact 12 so as to protrude upward from the opening of the inner container 9. be done. The plate member 17 is made of a synthetic resin, such as an acrylic resin, and is molded into a disk shape having a diameter approximately equal to the inner peripheral surface of the outer container 3, and has a ring-shaped @20 on its upper surface. A plurality of poles 19 are rotatably housed in this groove 20.

The substrate 1B is provided on the bottom surface of the second buffer member 15 and is placed on the top surface of the plate member 17 via the pole 19.

This substrate 18 and this plate member 17 have a pole 19 interposed between them that can make point contact, and since the plate member 17 is arranged on the upper surface of the first buffer member 13, the plate member 17 can be freely moved. The substrate 1B can now move freely.

By configuring the rotational force transmission prevention means in this way, when attaching M7 to the outer container 3, the rotational force of the lid 7 is transmitted to the 21st ffi.
Even if the force is transmitted to the member 15, the second cylinder member 15 rotates naturally following the rotation of the lid 7, so the second buffer member 15 is not deformed by rotation. Even if the impact member 15 rotates, since the base plate 18 and the plate member 17 are in point contact at the intervening ball 19, the rotational force is not applied to the first buffer member 14, and the first buffer member 14 is deformed. Never.

In this embodiment, the other components other than the rotational force transmission prevention means are the same as those of the first embodiment, so detailed explanation thereof will be omitted.

Further, as the rotational force transmission prevention means in the third embodiment, an O-ring may be placed in the groove 20 instead of the ball 19.

In this case as well, the same effects as in the second embodiment can be achieved.

Next, a fourth embodiment of the present invention is shown in FIG.

As shown in FIG. 4, the rotational force transmission prevention means in this embodiment is a hard plate-like member having an outer diameter approximately the same as the diameter of the inner peripheral surface of the outer container 3 and having a port insertion hole in the center. 21 and located at the opening of the inner container 9.
It is placed on the upper surface of the buffer member 13. A locking plate 22 having substantially the same shape as the plate member 21 is interposed between the bottom surface of the plurality of inner containers 9 housed in the outer container 3 and the bottom protection member 8A. A leg-long bolt 23 is inserted into the bolt insertion hole in the center □ of the port 22, and the head 23A of this port 23 is locked to the locking plate 22, and the bolt 23 is inserted into the port 23 insertion hole of the plate-like member 21. After inserting the tip of the leg-long bolt 23, the bolt 23 is screwed onto the bolt 23, and by tightening the bolt 23B, the plate member 21 is pressed against the opening of the inner container 9 and fixed.

Note that the bottom protection member 8A and the second buffer member 15A are
In order to arrange the head 23A of the port 23, the tip of the port 23, and the oak 23B, it is preferable to form the shape of a donut disk with a hole of an appropriate size in the center. Transmission prevention means, bottom protection member 8A
And regarding other members except the second buffer member 15A,
Since this is the same as the first embodiment, detailed explanation thereof will be omitted.

Also in this fourth embodiment, when the lid 7 is attached to the outer container 3, even if the lid 7 is rotated, the rotational force of the lid 7 is not transmitted to the first buffer member 13; No deformation due to rotational force.

[Effects of the Invention] According to the present invention, since the rotational force transmission prevention means is provided, when the lid is rotated and attached to the opening of the outer container, the deformation of the buffer member due to the rotational force of the lid can be effectively prevented. It can be prevented. Therefore, the fuel compact storage device of the present invention can safely protect the fuel compact from external shocks.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the first embodiment, and FIG. 3 is a second embodiment of the invention. FIG. 4 is a vertical cross-sectional view showing a fourth embodiment of the present invention. 100. Fuel compact storage device, 3.・. Outer container, 7e...lid, 9 snout...inner container, 12-...
Fuel compact, 13/11e first buffer member, 14-・
・Lower seat member, 15-member, 21-member member, 16◆・
Fist upper sheet member, 17--plate member, 18Φφ-substrate, 19-temple/ball, 21--plate member. Patent applicant Nuclear Fuel Industry Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] (1) A plurality of inner containers for cumulatively storing fuel compacts are stored in an outer container by being sandwiched between upper and lower first buffer members such that the first buffer members protrude from the upper opening; In a fuel compact storage device in which a lid is attached to an upper opening of an outer container by rotation while a second buffer member is placed on top of a first buffer member, an upper first buffer member and an inner surface of the lid are connected to each other. A fuel compact storage device characterized in that a rotational force transmission prevention means for disabling transmission of the rotational force of the lid is interposed between the first buffer member and the first buffer member. (2) The rotational force transmission prevention means includes a pair of low friction coefficients arranged between the first buffer member and the second buffer member and between the second buffer member and the inner surface of the lid. The fuel compact storage device according to claim 1, which is a sheet member. (3) The rotational force prevention means includes a pair of plate members interposed between the first buffer member and the second buffer member, and an inclusion that can make point or line contact with the pair of plate members. A fuel compact storage device according to claim 1, comprising: (4) The compact fuel storage device according to claim 3, wherein the inclusion is a ball. (5) The compact fuel storage device according to claim 3, wherein the inclusion is an O-ring. (8) The above-mentioned claim, wherein the rotation prevention means is a plate-shaped member interposed between the first buffer member and the second buffer member located above and fixed to the upper opening of the inner container. A fuel compact storage device according to item 1.