JP5219159B2 - school bag - Google Patents

Description

  The present invention relates to a school bag that is provided with a storage section for storing textbooks and the like.

  Conventionally, as shown in FIG. 5, the accommodation unit 2 that accommodates an article such as a textbook in the school bag 1 faces the back plate 3 that contacts the back of the child to be used, the pair of gussets 4, and the back plate 3. It is formed to be surrounded by the middle partition portion and the bottom portion, and is opened upward. A lid member 5 that covers the opening of the accommodating portion 2 is attached to the upper end portion of the back plate 3. The side edge that intersects the upper end of the back plate 3 is overlapped with the side edge of the lid member 5 on the front surface and the side edge of the gusset portion 4 on the back surface, and the seam allowance is sewn with the thread 6. It is attached.

  Here, the upper end portion of the back plate 3 and the upper end portion of the gusset portion 4 substantially coincide with each other, and the lower end portion of the lid member 5 is sewn at a position below that. The lid member 5 is bent at the upper end portion of the back plate 3 of the housing portion 2 to close the opening of the housing portion 2 and extends upward to open. The lid member 5 is repeatedly bent when the storage portion 2 is opened and closed, and a force is applied to a sewing portion with the side edge portion of the back plate 3, and the sewing thread 6 is broken or the sewing hole is enlarged. May be damaged at the bent part.

  In order to prevent this, a reinforcing piece 7 is attached to the end side edge of the lid member 5 so as to wrap a sewing portion with the accommodating portion 2. Such a reinforcing piece 7 has various shapes, for example, a sheet-like one cut into a shape as shown in FIG. The seat may be natural leather or synthetic leather, and the same fabric as the main body of the school bag 1 may be used. The reinforcing piece 7 is provided with a rectangular main body 8, and is integrally formed at the center of the upper end portion 8 a of the main body 8 with a belt-like protrusion 9 that protrudes outward substantially perpendicularly to the upper end portion 8 a.

  The reinforcing piece 7 is attached by first attaching the main body 8 of the reinforcing piece 7 to the front and back surfaces of the side edge portion which is the seam allowance of the sewing portion where the lid member 5 of the school bag 1, the back plate 3 and the gusset portion 4 are sewn together. Fold it in half and sew it together with the seam allowance with the upper end 8a aligned with the upper end of the back plate 3 and the gusset portion 4. Then, the projection 9 is bent along the upper end portion of the back plate 3 through the thread 6 being sewn. The protrusion 9 is pressed by the thread in a bent state and maintains the broken state. Accordingly, the reinforcing piece 7 has a shape along the step of the sewing portion where the lid member 5, the back plate 3 and the gusset portion 4 are stitched together, has a clean appearance, and reinforces the sewing portion to prevent damage. it can.

  As another reinforcing piece, the lid reinforcing structure in the school bag disclosed in Patent Document 1 is formed by integrally sewing a sheet-like reinforcing piece. This reinforcing piece is formed in a curved line shape in which one side edge portion located in the gusset portion is formed linearly and the other end portion located in the back plate bulges outward. The reinforcing piece is folded in two, wrapped around the sewing portion with the housing portion of the lid member, and sewn. Patent Documents 2 and 3 also disclose similar reinforcing pieces.

Japanese Utility Model Publication No. 3-818 Japanese Utility Model Publication No. 2-52614 Japanese Utility Model Publication No. 2-15287

  Since the reinforcing piece 7 and the protrusion 9 shown in FIGS. 4 and 5 of the background art have a band shape with a constant width, as shown in FIG. 5, the protrusion 9 is easy to come off from the sewing thread 6. When used, the folds of the protrusions 9 may open and become loose, or may come off from the upper end of the back plate 3, and the appearance may not be good and the reinforcement may be weakened. Further, the step of attaching the reinforcing piece 7 is troublesome because the protrusion 9 is bent after the main body 8 of the reinforcing piece 7 is sewn.

  Further, the school bag disclosed in Patent Documents 1 to 3 does not have a shape along the step of the sewing part where the reinforcing piece is sewn with the lid member, the back plate, and the gusset part, so that a gap is generated and the appearance is not so good. There wasn't. Dust could get in the gaps and get dirty.

  The school bag of the present invention has been made in view of the problems of the background art described above, and can reliably reinforce the sewing portion between the lid member of the school bag and the housing portion and make the sewing portion have a clean appearance. The purpose is to provide a school bag.

  The present invention is provided with an accommodating portion for accommodating an article, and the accommodating portion is formed by a back plate that comes into contact with a user's back, a pair of gusset portions, a partition portion that faces the back plate, and a bottom portion. The back plate is attached with a lid member that opens and closes the housing portion, and a reinforcing piece that is attached to a side edge portion of the lid member and wraps a sewing portion between the back plate and the gusset portion. The reinforcing piece is provided with a rectangular main body and a protrusion integrally formed on the upper end of the main body, and the protrusion is formed on the upper end of the main body. A base end portion projecting outward at a right angle to the base end portion, and a locking portion that is continuous from the tip end of the base end portion and wider than the base end portion, and the reinforcing piece is located on the base end side of the protrusion. The school bag is sewn and attached to the front and back sides of both side edges of the back plate.

  Further, the reinforcing piece wraps the lid member, the back plate, and the gusset portion of the school bag by folding the main body in two, and the upper end portion of the main body coincides with the upper end portion of the back plate. The projection is bent along the upper end of the back plate, the locking portions protruding on both sides of the tip of the projection are bent on the front and back surfaces of the back plate, and one of the locking portions is connected to the lid member. Between the back plates, the other is folded to the back plate surface on the storage portion side, and is sewn and attached in a state where the back plate is sandwiched by the locking portions.

  In the school bag of the present invention, the reinforcing piece is attached to the side edge portion of the lid member of the school bag so as to wrap the sewing portion with the housing portion, and the sewing portion can be reliably reinforced. In addition, the reinforcing piece is bent into a shape along the level difference of the sewing part and attached without gaps, giving it a clean appearance, and the reinforcing piece is locked to the sewn thread to maintain a durable and clean shape. can do.

It is a perspective view of the school bag of one Embodiment of this invention. It is a partially broken perspective view of the school bag of this embodiment. It is an expanded view of the reinforcement piece of the school bag of this embodiment. It is an expanded view of the reinforcement piece of the conventional school bag. It is a partial expansion perspective view of the conventional school bag.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show an embodiment of the present invention. A school bag 10 of this embodiment is provided with a storage portion 12 for storing articles such as textbooks, and the storage portion 12 is on the back of a child or the like to be used. It is formed by a back plate 14 that abuts, a pair of gussets 16, an intermediate partition 18 that faces the back plate 14, and a bottom (not shown). Furthermore, a side surface 19 is formed outside the inner partition 18 with a predetermined space, and the inner space of the accommodating portion 12 and the side surface 19 is open upward.

  A lid member 20 that covers the opening of the accommodating portion 12 is attached to the upper end portion 14 a of the back plate 14. The lower end portion 20a of the lid member 20 is superimposed on the surface of the upper end portion 14a of the back plate 14, and is sewn and attached. The side edge 20b intersecting the lower end 20a of the lid member 20 and the side edge 14b of the back plate 14 are substantially aligned with a straight line. A gusset portion 16 is sewn on the back surface of the side edge portion 14b of the back plate 14. The upper end portion 16 a of the gusset portion 16 coincides with the upper end portion 14 a of the back plate 14, and the side edge portion 16 b of the gusset portion 16 coincides with the side edge portion 14 b of the back plate 14. The seam allowance in which the side edge portion 20b of the lid member 20, the side edge portion 14b of the back plate 14, and the side edge portion 16b of the gusset portion 16 are overlapped is projected to the outside of the housing portion 12 with the back plate 14 for protection. It is wrapped with a tape 22 and stitched with a thread 24 from the outside of the protective tape 22. The upper end portion 22 a of the protective tape 22 coincides with the upper end portion 14 a of the back plate 14. Then, it is sewn from below with a thread 24, folded back at the upper end portion 14a of the back plate 14, and slightly back-stitched downward.

  On the side edge 20b of the lid member 20, a reinforcing piece 26 is overlapped from the outside of the protective tape 22 on the sewing portion of the side edge 14b of the back plate 14 and the side edge 16b of the gusset 16 with a thread 24. They are sewn together. As shown in FIG. 3, the reinforcing piece 26 is obtained by cutting a sheet material such as strong leather into a predetermined shape. The reinforcing piece 26 has a rectangular main body 28, and a protrusion 30 is provided on an upper end 28 a that is one end of the main body 28. The protrusion 30 has a base end portion 30a that protrudes outward at a right angle to the upper end portion 28a of the main body 28, and a locking portion 30b that is continuous with the tip end of the base end portion 30a and wider than the base end portion 30a. Yes. A pair of end portions of the protrusion 30 that are substantially parallel to the main body 28 are formed such that the center bulges outward.

  The reinforcing piece 26 is folded in a U-shape along the thickness of the seam allowance so that the main body 28 is folded in half to wrap the seam allowance from the outside of the protective tape 22. The upper end portion 28 a of the main body 28 coincides with the upper end portion 14 a of the back plate 14. The protrusion 30 is bent along the upper end portion 14 a of the back plate 14, and portions protruding from the base end portion 30 a of the locking portion 30 b to both sides are bent to the front and back surfaces of the back plate 14. The locking portion 30 b is locked in a state of being sandwiched between the back plate 14, the lid member 20, or the gusset portion 16. Moreover, the latching | locking part 30b may be sewn and sewn with the thread | yarn 24, and the thread | yarn 24 may pass to the vicinity of the base end part 30a, and this thread | sled 24 continues to the base end part 30a of the latching | locking part 30b. The end to be engaged may be locked.

  Next, an example of a process for attaching the reinforcing piece 26 of the school bag 10 will be described. After the back plate 14, the lid member 20, and the gusset portion 16 are sewed, the reinforcing piece 26 is attached to the side edge portion 20 b of the lid member 20 to which the protective tape 22 is attached so as to sandwich the sewing portion between the back plate 14 and the gusset portion 16. The main body 28 is applied. Then, the protrusion 30 is bent along the upper end portion 14 a of the back plate 14, and one of the locking portions 30 b protruding from the base end portion 30 a of the protrusion 30 on both sides is inserted between the back plate 14 and the lid member 20. The other is inserted between the side edge portion 16 b of the gusset portion 16 and the back surface of the main body 28. In this state, the reinforcing piece 26 is sewn from the outside of the main body 28 with the thread 24. The step of attaching the reinforcing piece 26 may be other than the above.

  According to the school bag 10 of this embodiment, the reinforcing piece 26 is attached to the side edge portion 20b of the lid member 20 so as to wrap the sewing portion with the accommodating portion 12, and the sewing portion can be reliably reinforced. In addition, the reinforcing piece 26 is locked to the sewn thread 24, so that the crease does not open or come off, can maintain a clean shape, and can be used in a clean state for a long time. Furthermore, the thread 24 is not broken or the sewing hole is not enlarged, and the bent portion is not damaged, which is safe. Furthermore, even if it repeats a bending whenever it opens and closes the accommodating part 12 in the part which opposes the upper end part 14a of the backplate 14, damage can be prevented. The reinforcing piece 26 is bent into a shape along the level difference of the sewn portion and is attached without a gap, resulting in a clean appearance and good appearance. In addition, there is no gap between the lid member 20 and the back plate 14, and dirt and dust do not enter and become dirty. It is safe because something gets caught in the gap and is not damaged. Further, the process of attaching the reinforcing piece 26 is simple because the protrusion 30 is bent along the upper end portion 14a of the back plate 14 before being sewn with the thread 24, so that it does not need to be inserted later.

  In addition, this invention is not limited to the said embodiment, The structure of a school bag can be changed freely. The material of the reinforcing piece may be the same leather as the main body of the school bag or may be different. The process of sewing the reinforcing piece can be changed as appropriate.

DESCRIPTION OF SYMBOLS 10 School bag 12 Accommodating part 14 Back plate 16 Machi part 18 Middle part 20 Lid member 22 Protective tape 24 Thread 26 Reinforcing piece 28 Main body 30 Protrusion 30a Base end part 30b Locking part

Claims (2)

  An accommodating portion for accommodating an article is provided, and the accommodating portion is formed by a back plate that comes into contact with a user's back, a pair of gusset portions, a partition portion that faces the back plate, and a bottom portion, and the back portion The plate is attached with a lid member that opens and closes the housing portion, and a reinforcing piece that is attached to a side edge portion of the lid member and wraps a sewing portion between the back plate and the gusset portion, and the reinforcing piece has a predetermined shape The reinforcing piece is provided with a rectangular main body and a protrusion integrally formed on the upper end of the main body, and the protrusion is perpendicular to the upper end of the main body. A base end portion that protrudes outward and a locking portion that is continuous from the tip of the base end portion and is wider than the base end portion, and the reinforcing piece has the base end side of the projection on the back plate A school bag characterized by being sewn and attached to the front and back surfaces of both side edges. The reinforcing piece wraps the sewing part of the lid member, the back plate, and the gusset portion of the school bag by folding the main body in two, and the upper end portion of the main body is aligned with the upper end portion of the back plate. The protrusion is bent along the upper end of the back plate, the locking portions protruding from both ends of the protrusion are bent to the front and back surfaces of the back plate, and one of the locking portions is connected to the lid member and the back. The school bag according to claim 1, wherein the other is folded and attached to the back plate surface on the storage portion side, and is sewn and attached between the plates in a state where the back plate is sandwiched between the locking portions.

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