JPS643381Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a bag in which a foldable lid is formed on the back plate of the bag body, and the lid is maintained in an upright state when putting items in or out of the bag body. The present invention relates to an improved structure that allows stored items to be taken in and out easily.

[Prior Art] In a bag having a foldable lid formed continuously on the back panel of the bag body, the lid is raised only when inserting or removing an item, thereby keeping the opening wide, in order to facilitate the insertion and removal of the contents, for example, the applicant's invention is disclosed in Japanese Utility Model Application Publication No. 1983-2003.
The one shown in Publication No. 12325 is known,
In this device, a metal strip is fitted from the lid to the back plate, and both longitudinal ends of the metal strip are fixed to the tip of the lid and the lower end of the back plate, respectively.

[Problem to be solved by the invention] Since the metal strip was fixed at both longitudinal ends to the tip of the lid and the lower end of the back plate, the metal strip curved without any escape while opening and closing the lid. As a result of repeated use, wrinkles and bulges appeared on the skin of the lid, mainly around the folded part of the lid, which is the most visible part of the lid, which seriously impairs the appearance and also accelerates the deterioration of the lid and metal strip. .

[Means for solving the problem] A storage groove of an appropriate width is formed from the top end of the lid to the bottom end of the back plate, and a band-shaped leaf spring is stored in the storage groove, and one end is fixed to the bag body while the other end is fixed to the bag body. The end is a free end,
The leaf spring is configured to have a length slightly shorter than the length of the storage groove so that the free end does not touch the end of the storage groove when opening and closing the lid.

[Function] Since the other end of the leaf spring is set as a free end, and the length is set to be shorter than the storage groove, the free end can be slid vertically when opening and closing the lid. Therefore, the leaf spring does not curve excessively, and almost no wrinkles or bulges occur on the skin of the lid.

[Example] In the figure, 1 is a main body of a bag having an opening 2 on the top surface, 3 is a back plate of the main bag body 1, and 4 is a lid.
5 is a bottom plate. Reference numeral 6 denotes a storage groove formed between the upper end of the lid 4 and the lower end of the back plate 3 and each inner lining 7, and has a width slightly wider than the width of the leaf spring 8 described later. The storage groove 6 stores a band-shaped metallic plate spring 8 having an arcuate cross section and elasticity. The leaf spring 8, like the well-known steel tape measure, bends freely on the concave side, but when it is bent to the opposite side, it remains rigid until a certain force is applied. Above this, it has the property of suddenly becoming easy to bend.

The leaf spring 8 is attached to the lid 4 of the bag body 1 in the storage groove 6.
It is integrally fixed to a buckle metal fitting 9 provided on the upper edge, and the lower end is not fixed but is a free end and is formed to be slidable in the vertical direction. The length of the leaf spring 8 is set to be slightly shorter than the storage groove 6 so that the free end does not touch the end of the storage groove 6 when the lid 4 is opened or closed.

Note that the leaf spring 8 only needs to be fixed at one end in its length direction, so the buckle fitting 9 and the upper end of the leaf spring 8 are not necessarily fixed together as described above, but the lower end can be fixed to the back plate 3. It may be fixed to the sutured connection 10 with the bottom plate 5.

Furthermore, in the embodiment, as shown in FIGS. 1 and 3, core paper 13, 1 is placed at the left and right positions except for the central part between the lid 4 and the lining 7 at the attachment part of the attachment fitting 12 of the handle 11.
3 is clamped and fixed, and a gap S is formed in the part through which the plate spring 8 is inserted, so that the bending and stretching of the plate spring 8 is not strained, and the gap S serves as a guide for the plate spring 8. .

In the bag of the present invention formed in this way, when the lid 4 is opened, the leaf spring 8 is attached with its concave surface positioned on the outside of the lid 4, so it stands upright due to the above-mentioned rigidity and holds the lid 4 upright. By opening the opening 2 widely, the stored items can be taken in and out easily. When attaching the lid 4 to the bag body 1, once a force exceeding the rigidity limit is applied, the leaf spring 8 becomes easy to bend and can be closed almost by the own weight of the lid 4, closing the opening 2. can do.

When the lid 4 is opened and closed, the free end of the lower end of the leaf spring 8 in the storage groove 6 can freely slide in the vertical direction, and the free end cannot be caught in the lower end of the storage groove 6. Therefore, even if the lower end of the leaf spring 8 is temporarily lowered or raised due to the opening and closing of the lid 4, the lower end of the leaf spring 8 can be accommodated within the housing groove 6 with sufficient margin to absorb the fluctuation of the lower end. As a result, the leaf spring 8 can smoothly repeat the opening and closing of the lid 4 without being excessively curved, so that wrinkles, bulges, etc. do not occur on the skin of the lid 4.

[Effects of the invention] As described above, in the bag of the invention, only one end of the leaf spring in the storage groove is fixed to the bag body, and the other end is formed as a free end, and the length of the leaf spring is The leaf spring is formed at a free end, and the length of the leaf spring is set so that the free end does not touch the edge of the storage portion, so that the leaf spring does not bend excessively when the lid is opened or closed, causing wrinkles or bulges on the skin of the lid. It does not cause This has the advantage of not only maintaining the appearance of the bag but also contributing to improved durability.

[Brief explanation of the drawing]

The drawings relate to an embodiment of the present invention, and Fig. 1 is a perspective view of the lid in an open state, Fig. 2 is a perspective view of the leaf spring, Fig. 3 is a cross-sectional view of the lid, and Fig. 4 is a view of the bag. FIG. 1... Bag body, 3... Back plate, 4... Lid, 6...
Storage groove, 8... leaf spring.

Claims (1)

[Scope of utility model registration request] A storage groove of an appropriate width is formed extending from the top end of the lid to the bottom end of the back plate, and a band-shaped leaf spring is stored in the storage groove, one end of which is fixed to the bag body, and the other end is a free end.
The bag is characterized in that the leaf spring is set to have a length slightly shorter than the storage groove so that the free end does not touch the end of the storage groove when opening and closing the lid.