JP3091954U - Large strap for backpack for school bag - Google Patents

Abstract

(57) [Summary] [Problem] Fits to the shoulder from the beginning of use, thereby reducing the burden on the child's body and having high air permeability,
Providing large straps for backpacks for school bags that reduce stuffiness and stickiness due to sweat and moisture. A shoulder strap d of a large string c has side bands i, j on both sides in the width direction separated by cuts h made on the center line in the longitudinal direction.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a large strap for a backpack band for a school bag.

[0002]

[Prior art]

[0003]   The large strap of the backpack band for the school bag should be made by superimposing cow leather, artificial leather, cushioning material, etc. The upper base end is attached to the upper part of the school bag case and the lower free end Via a buckle attached to the free end of the strap attached to the strap attached to the bottom of the housing. And then connected and used.   As shown in FIG. 6, when the school bag a is carried on the back, the inner edges 1 of the large strings b, b are , 1 is in contact with the shoulder, and the outer edges 2, 2 are the inner edges 1, 1 due to the load of the school bag. Although it pivots about and lowers slightly, the large strings b, b are wide and Because it is hard enough to be deformed, it floats from the shoulder. Therefore, one string It is difficult to fit on the shoulder until it has been used for a certain period and becomes soft, There is a problem that the body of the child is burdened.

[0004]   In order to solve such a problem, the whole large string is curved into a substantially S shape. Attached to the left and right large strings on the upper part of the satchel case The pair of back rings can be expanded and expanded by a predetermined angle according to the physical constitution of the child. It is known that the fit of the backpack band is improved.

[0005]

[Problems to be solved by the device]

  However, in each case, the string is hard to some extent and is difficult to deform at the beginning of use. However, the fit was not always good. Also, The lanyard becomes soft and fits well after being used for a while. However, there was a problem that it became damp due to sweat and moisture and became sticky.

[0006]   Therefore, the present invention fits on the shoulder from the beginning of use, and as a result It reduces the burden on the user and is highly breathable, so that it does not get damp or sticky due to sweat or moisture. The purpose is to provide a large strap for a backpack band for a satchel.

[0007]

[Means for Solving the Problems]

  The large string of the backpack band for a backpack according to the present invention according to claim 1 is a lower surface side of the cushioning material 3. Fold back the outer edges of the attachment / shoulder backing 5 and tightening section backing 7 that are placed in The cushioning material 3 is wrapped from the lower surface side, and the surface material 8 is placed on the upper surface side of the cushioning material 3. Then, sew these outer peripheral edges together to make a slender polymer, and then widen the slender polymer. The shoulder rest portion d is formed, and the extension portion on one side in the longitudinal direction is formed as the tightening portion f, and the other side is formed. In the large string c of the backpack band for the school bag, which has the protruding portion as the mounting portion g, The shoulder pad d is divided by a notch h of a required length which is made on the center line in the longitudinal direction. The widthwise both sides are defined as side band portions i and j.

[0008]   According to a second aspect of the present invention, the mounting member / shoulder pad backing material 5 and the tightening portion backing material 7 are integrated. The backpack van for a school bag according to claim 1, wherein the backpack van is molded as It is a string of do.

[0009]   In the present invention according to claim 3, a reflector is attached to the upper surface side of each of the side strips i and j. A large string for a backpack band for a school bag according to claim 1 or 2, Is.

[0010]

[Embodiment of device]

  The following is a diagram of a large string of a backpack band for a school bag according to an embodiment of the present invention. A detailed description will be given with reference to the surface.

[0011]   c has a wide portion as a shoulder rest portion d and an extension portion on one side in the longitudinal direction thereof. , A small hole e ... as a tightening portion f in a row, and a protruding portion on the other side as a mounting portion g It is a large string of a cell carrying band, and the above-mentioned shoulder pad d is required to be placed on the center line in the longitudinal direction. Both sides in the width direction divided by the notch h having the length of are defined as side band portions i and j.

[0012]   3 is made of polyurethane, polyethylene or the like, which is arranged inside the large string c. The long hole 4 is opened by a cushioning material which is a synthetic resin foam.   5 is a cow soft leather or artificial leather mounting part / shoulder pad backing with notches 6 In addition, 7 is also made of artificial leather etc. and tightened in a different color from the above-mentioned mounting part / shoulder pad backing 5 These are backing materials, and these backing materials 5, 7 are arranged on the lower surface side of the cushioning material 3, By folding back the edge, the cushioning material 3 is wrapped from the lower surface side.   8 is a surface material made of cow leather or artificial leather with a notch 9 on the cushioning material 3 It is superposed on the face side.

[0013]   10 is cowhide or artificial used in the cushioning material 3, backing materials 5, 7 and surface material 8. Reinforcement tape made of a fiber material that has sufficiently higher tensile strength than leather and does not stretch easily It is

[0014]   The above-mentioned large string c is formed by adhering each of these members appropriately and stitching the outer peripheral edge to form an elongated polymer. At the position where the outer peripheral edge is sewn, that is, the surface material 8 and the back material. The reinforcing tape 10 is sandwiched at a position where the folded-back portions 5'and 7'of 5 and 7 overlap. The stitching is performed together with the reinforcing tape 10 (see FIGS. 1 and 3).   As a result, the front material 8 and the back materials 5, 7 can be torn from the seam 11. And the strength of the large string c is increased.

[0015]   In addition, the notch h is formed in the mounting member / shoulder pad backing material 5 and the front material 8. The cuts 6 and 9 are provided in the length of the cushioning material 3 arranged between the backing material 5 and the surface material 8. The holes 4 are aligned with each other, and the periphery thereof is sewn (FIG. 3). Note that The peripheral edge may be fixed by adhesion or welding.

[0016]   k is a school bag to which the above-mentioned large string c is attached, which is the back guard plate 12 of the housing l. The back ring 13 fixed to the center of the upper end is wound around the attachment parts g of the pair of large strings c, c. By fastening the large strings c, c by rotatably attaching them to the free end. The base ends of the pair of braids m and m provided with buckles are attached to the bottom of the housing l. (Fig. 4).

[0017]   n, n are shoulder straps made by connecting the above-mentioned pair of large strings c, c and small strings m, m. And the strap 14 is attached to the frame 14 of the buckle of the small strings m, m. Insert f and insert the buckle rod 15 into any of the small holes e ... The length of the school bag can be adjusted by inserting the When carrying your back, make sure that the shoulder pads d, d of the left and right large strings c, c come into contact with the shoulders. Has become.

[0018]   As described above, since the side bands i and j are divided by the cut h, It can be modified differently. That is, when carrying a school bag k Side strips i, i contact the shoulders, and the outer side strips j, j are Since it deforms up to the point where it abuts the shoulder separately from i, start using these large strings c, c. From the beginning, it fits well on the shoulders, which puts a strain on the child's body carrying the satchel k Not (Fig. 5).

[0019]   In the above description, the cushioning material 3 is made of only synthetic resin foam, By attaching a paper or non-woven fabric impregnated with resin to it, the strength is increased. You can also turn it on.

[0020]   Further, in the above description, the attachment portion / shoulder pad backing material 5 and the tightening portion backing material 7 are separate members. However, these may be integrally molded as one backing material. to this Manufacturing becomes easier.

[0021]   In addition, a reflective material that has been used conventionally is attached to the surface of each side strip i, j. You can also attach it. This ensures the safety of children.

[0022]

[Effect of device]

  As is clear from the above description, the large size of the backpack band for the present invention The string has the following effects.   Since the shoulder pad uses both sides divided by the long hole as side strips, The side band can be deformed independently from the other, making it easy to follow the shape of the shoulder, Fits on your shoulders. Therefore, the burden on the body of the child carrying the school bag No

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a large strap of a backpack band for a school bag according to the present invention.

FIG. 2 is a perspective view showing a surface material, a cushioning material, and a backing material that form the above-mentioned large string.

FIG. 3 is an enlarged end view taken along line XX of FIG.

FIG. 4 is a perspective view showing a state in which the above-mentioned large string is attached to a school bag case.

FIG. 5 is an explanatory view showing a state in which a large string is deformed when carrying a school bag on the back.

FIG. 6 is an explanatory view showing a state in which a large string is deformed when a school bag provided with the conventional large string is carried on the back.

[Explanation of symbols]

c string d Shoulder part f Fastening section Mounting part h notch i, j side strip 3 cushioning material 5 Mounting part / Shoulder pad backing material 7 Tightening part backing 8 surface materials

Claims (3)

[Scope of utility model registration request] 1. An outer peripheral edge of a mounting member / shoulder pad backing material and a tightening portion backing material disposed on the lower surface side of the cushioning material is folded back to wrap the cushioning material from the lower surface side, and a surface material is attached to the cushioning material. Polymerize on the upper surface side and sew these outer peripheral edges into a slender polymer, and use the wide portion of the slender polymer as a shoulder rest portion, and the extension portion on one side in the longitudinal direction as a tightening portion, and the other side In a large string for a backpack band for a school bag having a protruding portion as a mounting portion, the shoulder pad portion has side width portions on both sides in the width direction divided by a notch having a required length inserted on a longitudinal centerline, A large string of backpack bands for school bags. 2. A large string for a backpack band for a school bag according to claim 1, wherein the backing material for the mounting portion / shoulder pad and the backing material for the tightening portion are integrally formed. 3. A large string for a backpack band for a school bag according to claim 1, wherein a reflecting material is attached to the upper surface side of each side band portion.