JP3164176U - Cover locking structure - Google Patents

Abstract

A locking structure is provided that is relatively inexpensive and that can lock a cover to a case body with a simple configuration. In a soft case having a bag-like case main body and a cover formed of a soft resin such as polyethylene, the soft case includes a locking piece and a locked portion 24 formed of the same resin. The locking piece is provided with slit-shaped cutouts 44 on the inner side, and protrusions 45 are provided on both left and right sides of the cutouts 44, and the protrusions 45 of the locking pieces are connected to the locked parts 24 of the case body. The protrusion 45 is locked to the edge of the locked portion 24 in the inserted state. Further, a gripping portion 42 is provided at the base end of the locking piece so that the welded portion of the locking piece does not come off when the locking piece is pulled out. [Selection] Figure 3

Description

  The present invention relates to a cover locking structure that covers a storage body made of a relatively soft material.

  In recent years, a storage body such as a soft case made of a soft synthetic resin has been used as a case for storing relatively small articles such as a toothbrush and swimming goggles.

  A general structure of such a soft case will be described with reference to FIG. 6 (a) and 6 (b), reference numeral 2 denotes a case main body formed of a soft synthetic resin such as polyethylene or EVA resin, and the bag is formed inside by welding a resin sheet. In this way, a shaped storage part can be formed. Reference numeral 3 denotes a cover that covers the opening 23 of the case body 2 and is provided integrally with the resin sheet of the case body 2 or is provided separately from the case body 2 and welded thereto.

By the way, when closing the opening 23 of the case body 2 with such a cover 3, conventionally, as shown in Patent Document 1, Patent Document 2, and the like, a plastic fastener 51, a metal fitting, or the like is attached to the cover 3 or Either attached to the case body 2 and locked to each other (FIG. 6 (a)), or attached so that the hook-and-loop fastener 52 faces the cover 3 and the case body 2 as shown in Patent Document 3, etc. Then, the cover 3 is joined (FIG. 6B).
JP 2006-061246 A JP 2001-180775 A JP-A-8-33122

  However, if the cover is locked with the plastic fastener 51 or the metal fitting as described above, the soft case itself cannot be finished inexpensively because the fastener is relatively expensive. Further, when a hard plastic fastener or metal fitting is attached to a soft synthetic resin sheet, discontinuity may occur in the softness of the attachment portion, and the resin sheet may be torn. Furthermore, if the soft case is disposed of by incineration, metal pieces may remain in the furnace, increasing residue.

  On the other hand, if the cover is fastened using the hook-and-loop fastener 52, the hook portion can be formed at a relatively low cost, but the hook-and-loop fastener 52 cannot be welded to the cover 3 or the case body 2. Therefore, it can be attached only by sewing or adhesive. For this reason, not only does it take a lot of time and labor to attach the hook-and-loop fastener 52, but also when the cover 3 is opened, a large load is applied to the front end portion of the hook-and-loop fastener 52 in the normal direction. It may tear from the tip. In addition, when the hook-and-loop fastener 52 is used, hair or dust may get entangled in countless hook-like portions (not shown) in the hook-and-loop fastener 52, which may cause discomfort.

  Accordingly, the present invention has been made paying attention to the above-described problems, and an object thereof is to provide a cover locking structure that is relatively inexpensive and that can lock the cover with a simple configuration.

  That is, in order to solve the above-mentioned problem, the present invention has a case body formed in a bag shape and a cover that covers a housing portion of the case body, and the locking piece provided on the cover is attached to the case body. In the cover locking structure that is locked to the locked portion of the cover, the cover is provided with a hollow notch on the inside and protrusions on the left and right sides of the notch, and the locking piece. The protrusion is inserted into the locked portion of the case body so that the protrusion is locked to the edge of the locked portion.

  And as one aspect in such a device, a bag-like case body, a cover, and a locking piece are formed of a flexible resin, and the locking piece is provided with a hollow cutout on the inside and the cutout Protrusions should be provided on both the left and right outer sides. Then, the protruding portion of the locking piece is inserted into the locked portion of the case body, and the protruding portion is locked to the edge of the locked portion.

  If comprised in this way, while being able to comprise a latching | locking part comparatively cheaply, the protrusion provided in the right and left both sides was pushed inward by the hollow notch part, and a latching piece became a to-be-latched part. Since it can be inserted, the locking piece can be easily locked without applying an excessive force to the locking portion.

  Further, in such a device, the locking piece is attached to the surface side of the cover, and a gripping portion that can be gripped with the end portion on the opposite side to the side to be inserted into the locked portion being formed in a non-joined state is formed.

  In this way, when the locking piece is pulled out from the locked portion, the gripping portion can be picked and pulled out, and the locking piece can be pulled without applying an excessive load on the welded portion between the locking piece and the cover. Can be pulled out. Thereby, the malfunction that the welding part of a latching piece will remove | deviate from a case main body can be prevented.

  Further, when the locked portion is configured, it is configured by a locked portion in which a flexible resin is formed in a ring shape, and the distal end portion of the locking piece is exposed to the front of the locked portion.

  If comprised in this way, since the protrusion of the locking piece is exposed from the ring-shaped locked part, when pulling out the locking piece, both sides of the exposed protruding part are on the hollow notch side. The locked state can be released.

  In addition, the case body, the cover, and the locking piece are formed of the same flexible resin.

  In this way, continuity can be imparted to the softness of each part, and problems such as the occurrence of discontinuous hard parts and breakage of the resin can be prevented.

  Moreover, the standing latching | locking part which has the hook part which opposed was provided in the to-be-latched part, and, thereby, a groove part is provided in the center part of a to-be-latched part.

  In this way, the locking piece can be fitted so as to be inserted from above the groove, and the elastic deformation by the notch can facilitate entry into the groove, and the hook can be pulled upward. Can be prevented.

  The present invention has a bag-like case main body and a cover that covers the housing portion of the case main body, and the locking piece provided on the cover is locked to the locked portion of the case main body. In the cover locking structure, the locking piece of the cover is provided with a hollow cutout on the inside, and protrusions are provided on the left and right outer sides of the cutout, and the protrusion of the locking piece is connected to the case main body. Since the protrusions are inserted into the locked portions and the edges of the locked portions are locked, the locking portions can be formed relatively inexpensively. In addition, since the left and right protrusions can be moved inward by the hollow notch and inserted into the locked portion, the locking piece can be easily engaged without applying excessive force to the locked portion. It can be stopped.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the soft case 1 in the present embodiment, and FIG. 2 is an enlarged view of a locking structure for locking the locking piece 4 of the soft case 1 to the case body 2. FIG. FIG. 3 shows a state for attaching the locking piece 4 to the locked portion 24.

  The soft case 1 in the present embodiment includes a bag-like case body 2 formed of a relatively soft synthetic resin and a cover 3 formed of the same soft synthetic resin. The opening 23 is covered with a cover 3, and a soft synthetic resin locking piece 4 is provided near the tip of the cover 3, and the locking piece 4 is also locked to the case body 2. For this purpose, a locked portion 24 is provided. Characteristically, a slit-shaped notch 44 is provided at the center of the locking piece 4, and protrusions 45 larger than the width of the locked portion 24 are provided on the left and right sides of the notch 44. The protruding portion 45 is locked to the edge 25 of the locked portion 24 while allowing elastic deformation of the cutout portion 44 into the hollow region. Hereinafter, the structure of the soft case 1 in the embodiment will be described in detail.

  First, the case body 2 can be formed with an accommodating portion 21 inside by cutting a relatively soft resin sheet such as polyethylene resin, vinyl chloride, EVA resin or the like into a suitable size and shape and welding. Therefore, the storage portion 21 is formed by winding one resin sheet and welding both ends, and the bottom portion 22 is formed by folding the opening portion on the lower side inward. The case body 2 may be formed by a single resin sheet or may be formed by welding a plurality of resin sheets.

  On the other hand, 3 is a cover provided so as to be integrated with the case main body 2 and covers the upper opening 23 in the storage portion 21. When the cover 3 is integrally formed with the case main body 2, a portion that becomes the cover 3, a portion that forms the storage portion 21, and a portion that forms the bottom surface portion 22 are cut and provided in advance on the resin sheet. Both ends are welded to form the storage portion 21 and the bottom surface portion 22 is folded inward to be welded. Thereby, the case main body 2 and the cover 3 are integrally formed. Further, when the cover 3 is formed separately from the case body 2 and is welded later, the cover 3 is welded to the case body 2 at the stage of a planar resin sheet, and then the case body 2 is formed into a bag shape. To weld.

  On the surface of the case main body 2, a ring-shaped locked portion 24 is provided. The locked portion 24 is obtained by cutting the same resin sheet as the case main body 2 into a rectangular shape, winding the loop in a loop shape, and welding the same to the case main body 2. The piece 4 can be inserted.

  On the other hand, the locking piece 4 is formed of the same resin as the case main body 2 or a resin having the same degree of softness, and as shown in FIG. 2, the center of the resin formed in a vertically long flat shape. A vertically hollow cutout 44 is formed in the portion, and protrusions 45 swelled in an arc shape are provided on both outer sides of the resin forming the cutout 44. At this time, the width of the notch 44 and the size of the left and right protrusions 45 are such that they fit within at least the inner ring-shaped portion of the locked part 24 when the left and right protrusions 45 are pushed into the notch 44 side. Is set. The locking piece 4 formed in this manner is welded in the vicinity of the distal end portion 41 on the surface of the cover 3, and the base end side (the insertion side is the front end) of the locking piece 4 at that time It can be picked freely as a welded state. And the base end side is made into the grip part 42, and the unevenness | corrugation 43 is given to the surface or the back surface of the grip part 42, and it can be easily picked and pulled out.

  Next, a method for locking and releasing the cover 3 of the soft case 1 configured as described above will be described with reference to FIGS. 3 (a) to 3 (c).

  First, when the cover 3 of the soft case 1 is closed and the locking piece 4 is locked, the distal end portion 41 of the locking piece 4 is inserted into the locked portion 24 as shown in FIG. At this time, the protrusions 45 on the left and right outer sides of the locking piece 4 are pushed inward (to the notch 44 side) with a finger, and further pushed forward with the grip 42. Then, it is pushed in so that the tip portion 41 is completely exposed from the locked portion 24, and it is confirmed that the protrusion 45 of the locking piece 4 is brought into contact with the edge 25 of the locked portion 24. The stop piece 4 is locked (FIG. 3B). Thereby, since the protrusion 45 of the locking piece 4 is in contact with the edge 25 of the locked portion 24, the locking piece 4 can be easily held unless it is forcibly pulled out. There is no such thing as leaving 24.

  Next, when the locking piece 4 is pulled out from the locked portion 24 (FIG. 3 (c)), on the contrary, the protrusion 45 exposed from the tip of the locked portion 24 is reversed from both outsides. It pushes inward with a finger | toe, the notch part 44 is closely_contact | adhered, the holding part 42 of the latching piece 4 is picked and pulled in this state. At this time, since the hollow cutout 44 is provided inside the protrusion 45, the protrusion 45 can be easily pushed and deformed without being strongly deformed. become. Further, normally, a method of pulling the cover piece 3 by pulling the cover 3 is adopted, but in this normal method, an excessive force is applied to the welded portion of the lock piece 4 so that the welded portion is removed. It may come off or the area around the welded part may be torn. In contrast, when the grip portion 42 is provided as described above, a large load is not applied to the welded portion with the cover 3 by gripping and pulling the grip portion 42, and the welded state can be prolonged. .

<Second Embodiment>
Next, the locking structure in the second embodiment will be described with reference to FIGS. In the above embodiment, the locking piece 4 having the notch 44 is inserted and locked into the ring-shaped locked portion 24. However, in this second embodiment, the locking piece 4 is locked. Can be locked by being fitted from above the locked portion 24. Hereinafter, the locking structure in the second embodiment will be described in detail with reference to FIGS. 4 and 5. In the description, components having the same structure as the first embodiment are described with the same reference numerals.

  First, the locking piece 4 is formed of the same resin as the case main body 2 or a resin having the same degree of softness, and the vertically long hollow cutout 44 is formed in the central portion of the resin that is configured in a vertically long flat shape. , And protrusions 45 swelled in an arc shape are provided on both outer sides of the resin forming the notch 44. In addition, a gripping portion 460 having a loop-shaped finger hole 46 that can be hooked with a finger is provided at the distal end portion of the locking piece 4. It can be moved up and down and up and down. Then, the base end portion of the locking piece 4 formed in this manner is welded and attached to the vicinity of the tip of the cover 3, and the protrusion 45 provided on the locking piece 4 is connected to the center portion of the cover 3 and the grip portion 460. It is trying to be located in. Further, in this embodiment, when the proximal end side of the protrusion 45 in the locking piece 4 is the proximal end piece 472 and the distal end side of the protrusion 45 is the distal end piece 471, The lateral width is set to be smaller than the lateral width of the base end side piece 472. In the figure, the lateral width of the distal end side piece 471 is set as A, and the lateral width of the proximal end side piece 472 is set as B (A <B).

  On the other hand, the locked portion 24 is formed of the same resin as the case main body 2 or a slightly hard resin, and a base portion 26 welded to the case main body 2 and a hook portion facing the inside of the tip portion. An upright locking portion 27 having 28 is provided. And the groove part 29 is formed in the center part between the standing latching | locking parts 27, and the latching piece 4 can be inserted from the top. The hook portion 28 has a gap width A that is substantially the same as the lateral width of the distal end side piece of the locking piece 4, and the gap below the upright locking portion 27 is the locking piece. The same gap width B as that of the base end side piece is set. Finally, the base end side piece 472 (part of width B) of the locking piece 4 is fitted into the upright locking part 27 to prevent vertical slipping, and the protrusion 45 also causes the longitudinal direction. It helps prevent slipping out.

  Next, the operation when the cover 3 is closed using the locking piece 4 and the locked portion 24 configured as described above will be described.

  First, when the cover 3 is to be locked to the case body 2, the tip side piece (the portion having the width A) of the locking piece 4 is held in a state where the finger is put in the finger hole 46 of the locking piece 4. The upper end side piece 471 is inserted between the hook portions 28 in the groove portion 29 by lowering the grip portion 460 in this state (FIG. 5). In this state, the gripping portion 460 is pulled forward, and the protrusion 45 of the locking piece 4 is pulled between the standing locking portions 27. At this time, since the locking piece 4 is provided with a hollow notch 44, the protrusion 45 can be pushed into the hollow portion, and the protrusion 45 can be easily passed inside the upright locking portion 27. Can do. Further, the proximal end piece 472 of the locking piece 4 is fitted into the groove 29 by pulling the protrusion 45 forward of the upright locking portion 27. As a result, it is possible to prevent vertical slipping and back-and-forth slipping.

  As described above, according to the above embodiment, the bag-like case body 2 and the cover 3 are formed of a relatively soft resin such as a polyethylene resin or an EVA resin, and are also formed of a soft synthetic resin. In the soft case 1 in which the locking piece 4 and the locked portion 24 are provided, the locking piece 4 is provided with a hollow cutout 44 on the inner side, and the protrusions 45 are provided on the left and right outer sides of the cutout 44. Since it is provided, the protrusion 45 of the locking piece 4 can be inserted into the locked portion 24 of the case body 2 and locked. Thereby, a latching | locking part can be comprised comparatively cheaply. Further, since the left and right protrusions 45 can be moved inward by the hollow cutout portion 44 and inserted into the locked portion 24, the locked portion 24 can be easily engaged without applying an excessive load. The stop piece 4 can be locked.

  Further, since the base end side of the locking piece 4 can be freely gripped in a non-joined state, when the locking piece 4 is pulled out from the locked portion 24, the gripping portion 42 is gripped and pulled out easily. Will be able to. In addition, since the grip portion 42 provided integrally with the locking piece 4 can be picked and pulled, it is possible to eliminate such a problem that the welded portion between the locking piece 4 and the cover 3 comes off.

  Furthermore, when the locked portion 24 is configured, the tip of the locking piece 4 is exposed by forming a flexible resin in a ring shape, so that when the locking piece 4 is pulled out, the exposed portion is exposed. The protrusion 45 can be pushed inward from both sides to release the locked state.

  In addition, since the case body 2, the cover 3, and the locking piece 4 are formed of the same flexible resin, the softness of each part can be given continuity, and the softness is broken at the discontinuous part. Etc. can be prevented.

  In addition, this invention is not limited to the said embodiment, It can implement in a various aspect.

  For example, in the above embodiment, the grip portion 42 is provided on the locking piece 4 of the case main body 2, but the grip portion 42 may be omitted.

  Further, in this embodiment, as the protrusion 45 of the locking piece 4, the protrusion 45 protruding in an arc shape is illustrated, but a protrusion 45 having various shapes can be provided. For example, the protrusion 45 may have an arrow blade shape. Further, the number of the locking pieces 4 can be provided not only at one place but also at a plurality of places.

  Further, when the cutout portion 44 is provided in this embodiment, the vertically long hollow cutout portion 44 is provided. However, the cutout portion 44 is not limited to the vertical hollow cutout portion 44, and the cutout portion 44 is not limited to a circular or square hole portion. The part 44 may be provided. In other words, any shape may be used as long as the projection 45 can be pushed inward and the synthetic resin can be easily deformed.

  In this embodiment, the case main body 2, the cover 3, the locking piece 4, and the locked portion 24 are all formed of the same synthetic resin, but these are made of different materials (materials other than the synthetic resin are also used). May be included). For example, when the locking structure of the present invention is applied to a bag or the like, the case main body 2, the cover 3, the locking piece 4 or the like can be constituted by a skin or the like.

The external appearance perspective view of the soft case in one embodiment of this invention Enlarged view of the locking structure in the same form The figure which shows the latching and releasing of the latching piece in the same form The figure which shows the latching structure of the soft case in 2nd embodiment of this invention The figure which shows the latching structure of the soft case in 2nd embodiment of this invention The figure which shows the latching structure of the soft case in a prior art example

DESCRIPTION OF SYMBOLS 1 ... Soft case 2 ... Case main body 21 ... Storage part 22 ... Bottom part 23 ... Opening part 24 ... Locked part 25 ... Edge part 26 ... Base part 27 ... Standing locking part 28 ... Hook part 29 ... Groove part 3 ... Cover 4 ... Locking piece 41 ... Tip part 42 ... Grip part 43 ... Concavity and convexity 44 .... Cutout 45 ... Projection 46 ... Finger hole 460 ... Grasping part 471 ... Tip side piece 472 ... Base end side piece

Claims (6)

Locking of the cover having a bag-like case body and a cover that covers the housing portion of the case body so that the locking piece provided on the cover is locked to the locked portion of the case body In the structure, on the locking piece of the cover,
A hollow cutout is provided on the inside, and protrusions are provided on both the left and right sides of the cutout. The protrusion of the locking piece is inserted into the locked portion of the case body, and the protrusion is engaged. A cover locking structure, wherein the cover is locked to an edge of the stopper. A bag-shaped case main body formed of a flexible resin and a cover formed of a flexible resin and covering a housing portion of the case main body, the locking piece formed of the flexible resin. In the locking structure of the cover of the soft case that is configured to lock the cover to the locked portion of the case body, the locking piece of the cover
A hollow cutout is provided on the inside, and protrusions are provided on both the left and right sides of the cutout. The protrusion of the locking piece is inserted into the locked portion of the case body, and the protrusion is engaged. A cover locking structure, wherein the cover is locked to an edge of the stopper.   3. The gripping portion that is attached to the surface side of the cover and that can be gripped with the end opposite to the side to be inserted into the locked portion in a non-joined state is formed. The cover locking structure described.   2. The locked portion is formed by forming a locked portion in a ring shape of a flexible resin so that the front end portion of the locking piece is exposed in front of the locked portion. Or the cover locking structure according to 2.   The cover locking structure according to claim 1, wherein the case body, the cover, and the locking piece are formed of the same flexible resin.   The cover locking structure according to claim 1, wherein the locked portion is configured by providing a standing locking portion having opposing hook portions and forming a groove portion at a central portion.

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