JP5145533B2 - Variable length storage case - Google Patents

Description

  The present invention relates to a storage case (hereinafter referred to as an “adjustable case”) that includes an inner case and an outer case, and whose total length is variable in accordance with the length of the stored item.

Conventionally, as an adjustable case, a screw type (see FIG. 4A) and a slide type (see FIG. 4B) are known (for example, Patent Documents 1 and 2).
US Pat. No. 4,509,656 JP 2003-31667 A

  The screw-type adjustable case has a problem that it takes time to take out the contents when the case is shortened. On the other hand, the slide-type adjustable case may damage the tip of the stored item when the case is closed.

  In view of the above, an object of the present invention is to provide an adjustable case that can be carefully closed without damaging the tip of the stored item and can be quickly operated when the stored item is taken out.

In order to achieve the above object, the adjustable case of the present invention has a cylindrical inner case that is open at one end and closed at the other end, and a cylindrical case that is open at one end and closed at the other end. A storage case that is configured by an outer case, the outer case is fitted to the inner case in the axial direction from the opening end side thereof, and the total length can be varied according to the length of the stored item. The following configuration is provided.
(1) The inner case and the outer case are configured in a regular polygonal cylindrical shape that can be said to be circular or substantially circular.
(2) A screw groove part formed with a screw groove is provided on the inner surface of the cylindrical part of the outer case.
(3) On the outer surface of the cylindrical portion of the inner case, a plurality of rows of granular projections composed of a number of granular projections arranged at equal intervals along the axial direction are provided, and the plurality of rows of granular projections are It is arranged so as to be in a positional relationship in which the cylindrical portion of the inner case is divided in the circumferential direction at equal angular intervals so that the central angles are equal.
(4) The axial position of the granular projections in the order corresponding to the height direction in relation to the other granular projection rows provided in the inner case is the pitch and center of the screw grooves formed in the outer case. It must be formed so that the positional relationship is shifted by an amount determined from the relationship with the angle.

  According to the adjustable case of the present invention, a screw-type operation can be adopted for the operation of closing the outer case, while a slide method by pulling can be adopted for the operation of opening the outer case. Therefore, when storing an important thing, it is easy to close the case so as not to damage the tip, and the outer case can be quickly removed when taking out the stored thing.

The granular protrusion rows are in a positional relationship in which the cylindrical portion of the inner case is divided in the circumferential direction at equal angular intervals so that the central angles are equal, and the order corresponding to the height direction in relation to other granular protrusion rows It is formed so that the axial position of the granular projections that are to become the positional relationship shifted by an amount determined from the relationship between the pitch of the screw groove formed in the outer case and the center angle, so that it is attached and detached with a screw method Smooth rotation operation becomes possible.

Further, the adjustable case of the present invention may further include the following configuration.
( 5 ) The outer case and the inner case are formed by direct blow molding.

  By providing such a configuration as well, it is easy to configure the case as being thin and easily deformed, and a smooth extraction operation when attaching and detaching by a slide method becomes possible.

  Note that the adjustable case of the present invention may be used as a screw method for both opening and closing, or may be used as a sliding method for both opening and closing. In addition, it is possible to use a screw method when opening as a slide method when closing.

  According to the present invention, when storing important items, the lid can be carefully closed without damaging the tip of the stored items, and can be quickly operated when removing the stored items. Since the method is also possible, the handling is convenient according to the use and the contents.

  Embodiments of the present invention will be described below with reference to the drawings. The adjustable case 1 of the embodiment is composed of an inner case 2 and an outer case 3 which are molded to a thickness of about 0.8 mm by a direct blow molding method using a transparent synthetic resin (PET). The inner case 2 is constituted by a cylindrical body 21 having a regular dodecagonal cross section having an upper end opening and a lower end closing. The outer case 3 is constituted by a cylindrical body 31 having a regular dodecagonal cross section having a lower end opening and an upper end closing.

  The cylindrical body 21 of the inner case 2 is sized to be accommodated in the cylindrical body 31 of the outer case 3, and along the three corners out of the 12 corners of the regular dodecagon, shifted by 120 ° of the central angle. Hemispherical protrusion rows 22 to 24 are provided in the axial direction. A screw groove 32 is formed in the lower end portion of the cylindrical body 31 of the outer case 3. Each protrusion constituting the protrusion rows 22 to 24 of the inner case 2 protrudes at a height that fits into the screw groove 32.

  As shown in FIG. 2, the protrusion rows 22 to 24 are arranged in an axial direction corresponding to the pitch of the screw grooves 32 formed in the outer case 3.

  The adjustable case 1 can employ a screw-type operation as shown in FIG. 3 (A) for the operation of closing the outer case, while it can be pulled out as shown in FIG. 3 (B) for the operation of opening the outer case. The slide method by can be adopted. Note that both the opening and closing may be used as a screw method, and the opening and closing may be used as a slide method. In addition, it is possible to use a screw method when opening as a slide method when closing.

  According to the present embodiment, the operation as described above is possible. Therefore, when storing an important object, it is easy to close the case so as not to damage the tip. The outer case can be removed quickly. In addition, since the projection rows 22 to 24 that are shifted by 120 degrees are provided, a smooth rotation operation is possible when attaching and detaching using a screw method. And since it is shape | molded thinly by blow molding, the smooth extraction operation at the time of attaching or detaching by a slide system is possible. And since it is transparent, it is easy to confirm that it has been closed to an appropriate length in the closing operation when accommodating such an important object as described above.

  As mentioned above, although embodiment and Example of this invention were described, this invention is not restricted to embodiment mentioned above etc., In the range which does not deviate from the summary, it can implement in various aspects.

  For example, you may comprise with a circular cylinder.

The adjustable case of embodiment is shown, (A) is a front view of an outer case, (B) is a front view of an inner case, (C) is a front view of the state which fitted the inner and outer cases. The adjustable case of embodiment is shown, (A) is a front view of an outer case, (B) is a front view of an inner case, (C) is a rear view of an inner case. The operation method of the adjustable case of embodiment is shown, (A) is a front view of the state closed with a screw type, (B) is a front view when opening with a slide type. It is a reference figure which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Adjustable case 2 ... Inner case 21 ... Cylindrical body 22-24 ... Projection row | line | column 3 ... Outer case 31 ... Cylindrical body 32 ... Screw groove

Claims (2)

A cylindrical inner case that is open at one end and closed at the other end, and a cylindrical outer case that is open at one end and closed at the other end, the outer case is connected to the inner case On the other hand, it is a storage case that can be fitted in the axial direction from the opening end side thereof, and the total length can be changed according to the length of the storage object, and has the following configuration. Storage case.
(1) The inner case and the outer case are configured in a regular polygonal cylindrical shape that can be said to be circular or substantially circular.
(2) A screw groove part formed with a screw groove is provided on the inner surface of the cylindrical part of the outer case.
(3) On the outer surface of the cylindrical portion of the inner case, a plurality of rows of granular projections composed of a number of granular projections arranged at equal intervals along the axial direction are provided, and the plurality of rows of granular projections are It is arranged so as to be in a positional relationship in which the cylindrical portion of the inner case is divided in the circumferential direction at equal angular intervals so that the central angles are equal.
(4) The axial position of the granular projections in the order corresponding to the height direction in relation to the other granular projection rows provided in the inner case is the pitch and center of the screw grooves formed in the outer case. It must be formed so that the positional relationship is shifted by an amount determined from the relationship with the angle. Further, the variable length of the storage case according to claim 1, characterized by comprising also the following configurations.
( 5 ) The outer case and the inner case are formed by direct blow molding.