JP3190801U - school bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a school bag capable of changing the size of a main storage room according to the age of a child. SOLUTION: A slide fastener having surplus portions 19 and 19 having both ends extended upward of a main storage chamber 3 is attached to both ends of a school bag 1 having a main storage chamber 3 separated into a front stage portion 5 and a rear stage portion 7. Auxiliary gusset fabric 22 that is connectable and has an extendable extension 23 inside the slide fastener, which is a separated portion between the front 5 and the rear 7, is attached, and the gussets of the front 5 and 5 are attached. The connecting tool 12b is detachably attached to the tip of the connecting band portion 10B connecting one end of the gusset ear pieces 8 and 8 provided at the upper ends of 4 and 4 and one end of the surplus portions 19 and 19. [Selection diagram] Fig. 4

Description

  The present invention relates to an improvement of a school bag that can adjust the depth of a main storage room of the school bag.

Conventionally, a school bag is formed by connecting a main storage room for storing textbooks, notebooks, etc., a secondary storage room for storing various teaching materials, and a front pocket for storing small items in the front-rear direction. The current situation is that the front-rear width becomes thicker.

In addition, since the recent school bags accommodate files other than educational materials, contact notes, etc., the main storage room has a width of 228 mm to 308 mm, a gusset width of 110 mm to 120 mm, and a height of 310 mm to 315 mm. It is formed in size. On the other hand, the textbooks and notebooks stored in the main storage room have less textbooks and notebooks in the lower grades because there are fewer textbooks than the upper grades.

Therefore, the main storage room of the school bag carried by the lower grades of children is not fully filled with textbooks and notebooks (hereinafter referred to as “containment”), and there is a considerable gap between them. Because it is not fixed in the room, if an elementary school student who goes to school with a school bag on the back runs, the contents in the main storage room swing up and down, left and right, making it difficult for the elementary school student to swing due to the school bag. This is one of the causes of damage.

For this reason, the conventional school bag has been devised in various ways in order to reduce the swinging of the items stored in the main storage chamber. For example, a plurality of grooves and protrusions are provided in the vertical direction inside the gussets on both sides of the main storage chamber at arbitrary intervals, and the position of the partition plate is changed depending on the amount of storage to be stored in the main storage chamber, and the stored items are inserted. What prevents movement by pressing is known (Patent Document 1). Further, the other end of the holding belt having one end fixed to the bottom surface of the main storage chamber is inserted into the holding plate, and the main storage chamber is sandwiched between the holding plate and the back plate side of the main storage chamber. There is known a device in which an object to be engaged attached to the vicinity of the opening is engaged with an engagement portion attached to the holding belt, and the contained item is fixed to the back plate by pressure bonding (Patent Literature). 2).

Japanese Utility Model Sho 61-31123 Patent No. 2973192

The former is a method in which a partition plate is inserted into a groove or protrusion provided in the gusset portion, but it is cumbersome and troublesome for elementary school students, particularly children of lower grades. Furthermore, it is necessary to firmly attach the support portion pieces constituting the groove portion and the projection portion formed in the gusset portion, and there is a problem that the weight of the whole school bag becomes heavy.

In the latter, one end of the presser belt is attached to the bottom surface of the main storage chamber, the engaged tool is attached to the opening, and the presser belt is inserted into the presser plate. It is troublesome for the elementary school students, especially the lower grades, and is troublesome.

Therefore, elementary school students who carry the backpack, especially when there are few items in the lower grades, the gusset width of the main storage room is narrowed to prevent the contained items from swinging, and the entire backpack is made compact and easy to carry, The purpose is to provide a school bag that can reduce the child's fatigue and reduce the weight of the school bag.

In order to achieve the above object, the main storage chamber 3 of the school bag 1 is separated into a front stage portion 5 and a rear stage portion 7 at both ends (both side gusset portions and bottom surface portion), and both ends extend above the main storage chamber 3 A slide fastener 17 having portions 19 and 19 is attached and detachably connected, and a separation portion of the front step portion 5 and the rear step portion 7 and an extendable extension portion 23 provided inside the slide fastener 17 is provided. 10A of connecting bands which attached the auxiliary gusset fabric 22 which connected the end of the gusset ear pieces 8 and 8 provided in the upper end of the gusset parts 4 and 4 of the front stage parts 5 and 5, and the one end of the surplus parts 19 and 19 The connecting tools 12a and 12b attached to the tip of 10B are formed so as to be detachable from each other, the slide fastener 17 is closed to connect the front stage part 5 and the rear stage part 7, and the front fastening belt 35 provided in the school bag 1 Clasp 36, 6 is fastened to the first and second locking retaining portions 31 and 32 to form the main storage chamber 3 having a normal width X, and the fasteners 36 and 36 of the front fastening belt 35 are connected to the first and second retaining retaining portions 31. 32, and the slide fastener 17 is opened to separate the front step portion 5 and the rear step portion 7, the inner auxiliary gusset fabric 22 is widened, and the fasteners 36, 36 of the front fastening belt 35 are second and third locked. The main storage chamber 3 is formed in a wide width Y by being fastened to the retaining portions 32 and 33. Further, the insole plate 25 laid on the inner bottom surface of the main storage chamber 3 is detachably locked to a retaining portion 26 provided on the back plate side when the gusset width of the main storage chamber is a normal width X. When the gusset width of the main storage chamber 3 is set to the wide width Y, the inner bottom surface of the main storage chamber 3 is reinforced and stabilized by removing it from the retaining portion 26 and laying it on the inner bottom surface. Further, the connecting tool 12 attached to the connecting band portions 10A and 10B has a connecting female portion 12a attached to one connecting band portion 10A and a connecting male portion 12b attached to the other connecting band portion 10B. 3 is formed to have a normal width X or a wide width Y, it is detachably connected to prevent the gusset portion 4 of the front stage portion 5 from spreading. Furthermore, a front fastening belt 35 having one end attached at a laterally symmetrical position on the side surface of the main storage chamber 3 includes a plurality of fasteners 36, 36 provided at the front end, and the auxiliary storage chamber 30 of the school bag 1. When the main storage chamber 3 has a normal width X, it is detachably fastened to any one of the plurality of first, second, and third locking fasteners 31, 32, and 33 provided in a symmetrical position on the front side. When the inner first and second locking fasteners 31 and 32 and the fasteners 36 and 36 of the front fastening belt 35 are fastened and the main storage chamber 3 has a wide width Y, the fasteners 36 and 36 of the front fastening belt 35 are used. Is fixed to the outer second and third locking fasteners 32 and 33. The gusset width forming the main storage chamber 3 of the school bag 1 is characterized in that the normal width X is 100 mm to 110 mm and the wide width Y is 110 mm to 120 mm.

Accordingly, the main storage chamber 3 of the school bag 1 is detachably connected by attaching the slide fastener 17 to the cut portion of the front step portion 5 and the rear step portion 7, and the auxiliary gusset having the extending portion 23 inside the slide fastener 17. By attaching the fabric 22 and doubling the connection, the slide fastener 17 is closed to provide a so-called school bag 1 that is narrow and has a narrow gusset width. In the upper grades, the school bag 1 having the main storage chamber 3 with a large storage capacity can be provided by opening the slide fastener 17 and expanding the reinforced gusset fabric 22 to form a wide width Y. Therefore, since the size of the school bag can be changed according to the growth of school children, it is easy to carry and is convenient.

It is a front view of the school bag which fractured | ruptured a part of cover plate. It is the sectional view on the AA line of FIG. It is a front view of the main storage chamber which showed the fastener of the front fastening belt, and was partially broken. FIG. 3 is a sectional view taken along line BB in FIG. 1. It is a right view of a school bag main body. It is a left view of a school bag main body. It is a bottom view of a school bag main body. It is a side view of the state which opened the slide fastener and expanded the gusset width of the main storage chamber. It is a center longitudinal cross-sectional view of FIG. It is a top view which shows the state which connected the gusset width of the main storage part with the connector of the connection belt | band | zone part. It is an enlarged plan view of a connecting band portion to which a pair of male and female connectors are attached.

  The embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a school bag in which a part of a cover plate is broken, FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a sectional view taken along the line BB in FIG. 1, FIG. 5 is a right side view of the school bag body, FIG. 6 is a left side view of the school bag body, and FIG. FIG. 4 is a bottom view of the school bag body. The school bag 1 includes a main storage room 3 for storing textbooks and notebooks, a sub storage room 30 for storing auxiliary materials, and small items on the back side of a back plate 2 made of artificial leather, synthetic leather, natural leather or the like. Each of the pocket portions 38 is formed, and a cover plate 40 having one end sewn on the upper end of the back plate 2 covers the main storage chamber 3, the sub storage chamber 30, and the front pocket 38 so as to be openable and closable.

As shown in FIGS. 2 and 4, the school bag 1 includes a main storage chamber 3 having a normal depth X (100 mm to 110 mm) and a bottom gusset portion 4, 4 and a bottom surface at a ratio of 4: 1 or 3: 1. The front part 5 and the rear part 7 are formed by separating the parts in the vertical direction, and the slide fastener 17 and the reinforced gusset part fabric 22 are sewn to the separation part of the front part and the rear part, and the two parts are connected to each other. It is.

As shown in FIGS. 5 and 6, both ends of the slide fastener 17 form surplus portions 19 and 19 extending from the upper ends of both side gusset portions 4 and 4 of the main storage chamber 3, and the slider 18 of the slide fastener 17 is surplus. By moving to the end of the part 19, the entire front stage part 5 and the rear stage part 7 can be separated and opened with the same width.

Since the surplus portions 19 and 19 of the slide fastener 17 protrude from the upper end of the main storage chamber 3, if it is left as it is, it will interfere with the contents to be taken in and out of the main storage chamber 3, or it may protrude from the school bag and become a wire mesh or wood. Since there is a possibility of catching on the branches, the reinforcing portions 20 as the core members are respectively attached to the surplus portions to prevent wobbling.

Since the main storage chamber 3 is separated into the front stage part 5 and the rear stage part 7, the upper end of the front stage parts 5, 5 is reinforced in order to reinforce the weakness of the upper ends of the gusset parts 4, 4 of the front stage part 5. The gusseted ear pieces 8 and 8 are attached to one end of the gusseted ear piece and the one end of the connecting band portions 10A and 10B to the reinforcing portion 20 of the surplus portion 19, respectively. 12 are detachably connected to each other to prevent the gusset portion 4 from spreading.

As shown in FIG. 11, the connecting band portions 10A and 10B are a pair of left and right, each having an inverted Y shape, and the bifurcated first and second band portions 10a and 10b and the tip band portion 10c are integrally formed. One end of the gusset ear piece 8 is connected to the belt portion 10a, one end of the reinforcing portion 20 attached to the surplus portion 19 is connected to the second belt portion 10b, and the connector 12 is attached to the tip belt portion 10c. The connector 12 attached to the tip band portion 10c is detachable.

The connecting tool 12 has a connecting female part 12a attached to one connecting band part 10A, and a connecting male part 12b attached to the other connecting band part 10B. The main housing part 3 is prevented from expanding by connecting the connector 12 and closing the main housing part 3 when the cover plate 40 is put off and opened.

As shown in FIGS. 2 and 4, the auxiliary gusset fabric 22 is formed of a strong and lightweight chemical fiber fabric, preferably a polyester fabric, and the stretchable portion 23 provided in the central longitudinal direction is wide in the main storage chamber 3. When the main storage chamber 3 has a normal width X, the extension 23 is curved inside the slide fastener 17 when the main storage chamber 3 has a normal width X. Contained.

As shown in FIGS. 4 and 9, the main storage chamber 3 can be laid with an insole plate 25 to stabilize the inner bottom surface when the gusset width is widened to the wide width Y. The insole plate 25 is formed to have substantially the same size as the inner bottom surface when the gusset width is widened to the wide width Y. For example, one end of the insole plate 25 is pivoted to the support portion 24 provided on the back plate side of the inner bottom surface. When the main storage chamber 3 has a normal width X, it is movably supported and is detachably locked to a fastener 26 provided on the back plate side so as not to interfere with the contents. The fastener 26 may be attached with a connector such as a pair of detachable male and female hook-and-loop fasteners and hooks.

When the main storage chamber 3 is widened to the wide width Y, the front stage part 5 and the rear stage part 7 are only connected by the auxiliary gusset fabric 22, so the strength of the separation part is weak. Therefore, the inner bottom surface spread by the auxiliary gusset fabric 22 can be reinforced and stabilized by removing the insole plate 25 leaning on the back of the main storage chamber 3 from the fastener 26 and laying it on the inner bottom surface (FIG. 9).

Further, the insole plate 25 is not only supported and stored in the main storage chamber 3 by the support portion 24 but also separated from the school bag and separated into a separate storage chamber 30 and a desk drawer. However, it may be taken out and formed on the inner bottom surface when formed in a wide width.

As shown in FIG. 3, the front fastening belt 35 that reinforces the main storage chamber 3 of the school bag 1 has one end attached to the left and right symmetrical positions on both sides of the main storage chamber 3, and a plurality of fasteners at the front end of the belt located on the front side. 36 and 36 are provided. The plurality of fasteners 36, 36 are a plurality of fasteners of a plurality of first, second, and third locking fasteners 31, 32, 33 provided at symmetrical positions on the front side of the secondary storage chamber 30 of the school bag 1. Removably attached to the tool.

The fasteners 36 and 36 of the front fastening belt 35 are fastened to the first and second locking fasteners 31 and 32 on the inner side when the main storage chamber 3 has the normal width X. When the main storage chamber 3 has a wide width Y, the clasp 36 is removed from the first and second locking clasps 31 and 32 and then the slide fastener 17 is opened to widen the auxiliary gusset fabric 22 to form the wide width Y. To do. Next, the main storage chamber 3 can be widened by fastening the fastener 36 of the front fastening belt 35 to the outer second and third locking fasteners 32 and 33. By providing a plurality of fasteners 36 for the front fastening belt 35, it is possible to prevent the front fastening belt 35 from being detached and the main storage chamber 3 from being deformed by an impact that a child carrying a school bag handles roughly.

Hereinafter, the operation of the embodiment of the present invention will be described. The main storage portion 3 of the school bag 1 is formed separately in the front step portion 5 and the rear step portion 7, and the slide fastener 17 and the auxiliary gusset fabric 22 are sewn in this separation portion. It is worn and double connected. Therefore, in the lower grades (1st grade to 3rd grade), as shown in FIG.

When the slide fastener 17 is closed, the main storage portion 3 is bent and folded at the extending portion 23 of the auxiliary gusset fabric 22, and the fasteners 36 and 36 of the front fastening belt 35 are the first and second locking fasteners on the inside. 31 and 32. Therefore, the school bag 1 as a whole can be made compact and light in weight, and can be easily carried by lower-grade children, so it is hard to get tired. Can be prevented from being damaged.

When the upper grades (4th grade to 6th grade) and the number of items to be stored are increased, as shown in FIGS. 8 and 9, the gusset width of the main storage chamber 3 forming the school bag 1 is set to the wide width Y (110 mm to 120 mm). Can be spread.

For the operation, the fasteners 36, 36 located on the front side of the front fastening belt 35 are removed from the first and second fasteners 31, 32, and the slider 18 of the slide fastener 17 is passed through the bottom portion from one surplus portion 19a and the other. It moves to the excess part 19b on the side and opens.

Since the slide fastener 17 is provided with the surplus portion 19, the slider 18 can be moved above the opening portions of the front step portion 5 and the rear step portion 7, so that the front step portion 5 and the rear step portion 7 are opened widely in parallel. Thus, the stretchable portion 23 of the auxiliary gusset fabric 22 can be expanded to a predetermined width (wide width Y).

Next, the main storage chamber 3 can be stabilized by fastening the fasteners 36, 36 of the front fastening belt 35 to the second and third fasteners 32, 33. Accordingly, the school bag 1 can accommodate a large amount of storage by changing the main storage chamber 3 from the normal width X to the wide width Y by a simple operation by simply operating the slide fastener 17.

When the main storage chamber 3 is set to the wide width Y, as described above, the slider 18 of the slide fastener 17 is moved to open the front step portion 5 and the rear step portion 7, and the reinforcing gusset 22 located inside the slide fastener 17 is extended. By laying the insole board 25 on the inner bottom surface of the main storage chamber 3, the bottom portion connected by the auxiliary gusset fabric 22 of the cloth material can be reinforced and stabilized (FIG. 9). Accordingly, the main storage chamber 3 can be changed from the normal width X to the wide width Y by a simple operation by simply moving the slider 18 of the slide fastener 17 to store a large amount of storage items.

The insole plate 25 attached to the main storage chamber 3 of the school bag 1 has the insole plate 25 located on the inner bottom surface of the main storage chamber 3 provided on the back plate side when the main storage chamber 3 is formed with a normal width X. Although it is accommodated by being locked to the portion 26, the insole plate 25 is stored in the sub storage chamber 30 by being separated and independent, and further stored in a desk drawer or the like and stored in and out of the main storage chamber 3. You can avoid getting in the way.

The connecting band portions 10A and 10B are formed by integrally forming a bifurcated first and second band portions 10a and 10b and a front end band portion 10c formed in an inverted Y shape in a pair of left and right sides, respectively. One end of the gusset ear piece 8 is connected to 10a, the other second band portion 10b is connected to the reinforcing portion 20 attached to the surplus portion 19, and the connector 12 is attached to the distal end band portion 10c. The gusset portion 4 of the main storage chamber 3 is prevented from spreading by detachably connecting the connector 12 attached to the pair of connection bands 10A and 10B.

DESCRIPTION OF SYMBOLS 1 Backpack 2 Back plate 3 Main storage room 4 Machi part 5 Front stage part 7 Rear stage part 8 Machi ear piece 10 Connection band part 12 Connection tool 17 Slide fastener 18 Slider 19 Surplus part 20 Reinforcement part 22 Auxiliary gusset cloth 23 Extension part 24 Support Part 25 Insole plate 26 Retaining part 30 Sub-accommodating part 31 First retaining retaining part 32 Second retaining retaining part 33 Third retaining retaining part 35 Pre-fastening belt 36 Fastener 38 Front pocket 40 Cover plate

Claims (5)

The main storage chamber (3) of the school bag (1) is separated into the front stage part (5) and the rear stage part (7) at both end parts (both side gusset parts and bottom face part), and both ends are above the main storage chamber (3). A slide fastener (17) having an extended surplus part (19), (19) is attached and detachably connected, and the slide fastener is a separation part of the front stage part (5) and the rear stage part (7). An auxiliary gusset fabric (22) having a stretchable stretchable part (23) is attached to the inner side of (17), and is attached to the upper ends of the gusset parts (4) and (4) of the front stage parts (5) and (5). A connector (12a) attached to the end of the provided gusseted ear piece (8), (8) and the connecting band portion (10A), (10B) connecting the one end of the surplus portions (19), (19). ), (12b) are formed to be detachable from each other, and the slide fastener (17) is closed before The fasteners (36), (36) of the front fastening belt (35) attached to the school bag (1) are joined to the first and second locking fasteners (31) by connecting the part (5) and the rear part (7). , (32) to form a main storage chamber (3) having a normal width X, and the fasteners (36), (36) of the front fastening belt (35) are connected to the first and second locking fasteners (31 ), (32) and the slide fastener (17) is opened to separate the front step portion (5) and the rear step portion (7), the inner auxiliary gusset fabric (22) is widened and the front fastening belt (35) The main storage chamber (3) is formed in a wide width Y by fastening the fasteners (36), (36) to the second and third locking fasteners (32), (33). school bag. The insole plate (25) laid on the inner bottom surface of the main storage chamber (3) has a clasp (26) provided with the insole plate (25) on the back plate side when the gusset width of the main storage chamber is a normal width X When the gusset width of the main storage chamber (3) is set to a wide width Y, the inner bottom surface of the main storage chamber (3) is removed from the retaining portion (26) and laid on the inner bottom surface. The school bag according to claim 1, wherein the bag is reinforced and stabilized. The connector (12) attached to the connecting band portions (10A) and (10B) includes a connecting female portion (12a) on one connecting band portion (10A) and a connecting male portion on the other connecting band portion (10B). (12b) is attached, and when the main storage chamber (3) is formed in the normal width X or the wide width Y, the gusset portion (4) of the main storage chamber (3) is expanded by being detachably connected. The school bag according to claim 1, wherein the school bag is prevented. A front fastening belt (35) having one end attached at a laterally symmetrical position on the side surface of the main storage chamber (3) includes a plurality of fasteners (36), (36) provided at the front end and a school bag (1). The sub-storage chamber (30) is detachably attached to any one of the plurality of first, second, and third locking fasteners (31), (32), and (33) provided at symmetrical positions on the front side. When the main storage chamber (3) has a normal width X, the first and second locking clasps (31) and (32) on the inner side and the clasps (36) and (36 of the front fastening belt (35) ) And the main storage chamber (3) has a wide width Y, the fasteners (36), (36) of the front fastening belt (35) are attached to the second, third locking fasteners (32), ( 33. The school bag according to claim 1, wherein the school bag is fixed to 33). 3. The school bag according to claim 1, wherein a gusset width forming the main storage chamber (3) of the school bag (1) is a normal width X of 100 mm to 110 mm and a wide width Y of 110 mm to 120 mm. .

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