JP5919470B1 - Shoulder belt attaching device for school bag - Google Patents

Abstract

An object of the present invention is to use the bag while standing on the back of the school bag so that it can be easily carried on the back of the school bag. A belt attaching device that realizes both ease of carrying and storage so that the shoulder belt is not disturbed by a compact fit along the back plate surface. A shoulder belt attaching device having a rod-shaped body at a buckle portion is provided, and a shoulder belt is attached to a coupling device having a holder for sandwiching the rod-shaped body from outside with an elastic force. It was configured to rotate while having resistance to the buckle. [Selection] Figure 1

Description

  The present invention relates to a shoulder belt shoulder belt attaching apparatus.

  The shoulder belt of the conventional school bag is attached to the school bag body in various forms. In FIG. 10 of Patent Document 1, the shoulder belt is attached to a metal triangular annular body and is freely rotatable. From the viewpoint of ease of carrying, the shoulder belt is fixed vertically upward with respect to the school bag body. It can be done. However, this structure is easy to carry, but the shoulder belt stands upright when stored in a school locker, etc., so it is difficult to store it because it does not fold tightly against the back of the school bag. There is also a problem that is damaged.

Japanese Patent No. 3763129

  In the present invention, when carrying a school bag, it is easy to carry the bag with the shoulder belt facing upward, and when carrying or storing the school bag, the shoulder bag is held downward so that the school bag is compact. Provided with a shoulder bag shoulder belt attachment device that operates with a belt and can achieve both comfort and storage characteristics compared to the prior art.

  A shoulder belt attaching device having a rod-like body at a buckle portion is provided, and a shoulder belt is attached to a connecting device having a holder for sandwiching the rod-like body from the outside by elastic force, and the connecting device resists the buckle. It was configured to rotate while having it.

  When carrying a school bag on the back according to the present invention, it is used in a state where it stands up with respect to the school bag so that it is easy to carry it. It is possible to fit in a compact manner so as to face downward along the back plate surface so that the shoulder belt does not get in the way.

Shoulder belt attachment device overall perspective view Shoulder belt upward side view Shoulder belt downward side view Buckle assembly drawing Buckle function section perspective view Buckle fixing position sectional view Buckle movable position cross section Buckle assembly drawing Buckle assembly drawing Buckle function section perspective view Buckle assembly drawing Buckle function section perspective view

  Embodiments of the present invention will be described below. FIG. 1 shows a state in which the shoulder belt attachment 2 is attached to the school bag body 1 and the shoulder belt 3 attached to the buckle 20 is directed upward. The shoulder belt 3 rotates about the axis of the buckle 20, but can be clicked at an angle set according to the present invention. Note that the click operation described here indicates that the shoulder belt is stably held at a plurality of angles with respect to the buckle and is maintained until a rotational force exceeding a predetermined torque is applied.

  The above-mentioned click operation angle can be set freely, but first, the shoulder belt 3 is in an upright position in order to improve the comfort of the shoulder, and the shoulder belt so as to be compact when storing the angle and the school bag of FIG. A description will be given below of the mechanism in which the click operation is performed at two angles in FIG.

  FIG. 4 illustrates the connecting portion between the buckle 20 and the shoulder belt 3 as a structure for performing the click operation. The connecting tool 10 is attached to the buckle 20, and a pressing spring 30 is attached to the outside of the buckle 20, and the buckle 20 is sandwiched and held through the connecting tool 10. After that, the shoulder belt 3 is passed through the hole of the buckle 20 so as to wrap the connector 10 and the shoulder belt 3 and the connector 10 are attached integrally using the rivet 4 and the rivet receiver 5.

  The buckle 20 and the connector 10 will be described in detail using cross sections. FIG. 5 shows a state in which the shoulder belt 3 is removed. As shown in FIG. 8, the buckle 20 is a cylindrical body 22 on both sides, and a central part is a rod-like body 21 having a cross section on both sides. The connector 10 has a portion that attaches to the rod-like body. The cylindrical body 22 on both sides of the buckle 20 is attached to the holder 12 of the connecting tool 10, and the rod 21 having the central plane of the buckle 20 on both sides is attached to the holder 11 of the connecting portion 10. The holder 11 itself sandwiches and holds the rod-shaped body 21, but the rod-shaped body 21 is always sandwiched and held by the pressing spring 30 from the outside. The connector 10 is preferably provided with a thin portion 13 for sewing a shoulder belt and a hole 14 for attaching a caulking.

  Next, a mechanism for holding the shoulder belt at a set angle will be described with reference to sectional views 6 and 7. FIG. 6 shows a holding state, in which it does not rotate unless a certain torque is applied. At the center, there is a rod-like body 21 having a cross-sectional shape of the buckle 20 on both sides, a holder 11 is provided on the outside thereof, and a pressing spring 30 is attached so as to sandwich the holder. If the angle of the shoulder belt 3 is changed from the state shown in FIG. 6, the holder 11 starts to rotate with respect to the rod-like body 21, so that a rotation torque of a certain level or more is required to widen the width against the holding of the holding spring 30. Thus, when a torque exceeding a certain level is applied, the shoulder belt starts to rotate. FIG. 7 shows a process in which the shoulder belt faces from the top to the bottom. When the shoulder belt is rotated downward, the spread presser spring 30 is narrowed again and maintains its angle. The bending portion 31 is engaged with the groove 15 so that the pressing spring 30 does not come off during operation. 5 is engaged with the cylindrical body 22 on both sides of the buckle 20 so that the detachment holder 12 of the connector 10 is engaged, so that it can be removed even if the shoulder belt is pulled while the holder 11 is open. The stop holder 12 holds the cylindrical body 22 and is not detached by the outer shoulder belt 3.

  Next, another structure that can obtain the same function by using the buckle 20 will be described with reference to FIG. Instead of using the connector 10, the spacer 40 is used, the leaf spring 50 is aligned with the concave portion 41, the holding portion 51 is set so as to sandwich the rod-shaped body 21, and is wrapped with a shoulder belt. And attach. The thin part 42 is for attaching to the spacer 40 by sewing after attaching the rivet. Also in this structure, the click is based on the difference between the thickness of the leaf spring 50 and the repulsive force due to the dimension between the pressing parts on both sides when attached to the spacer, the distance between the both side planes of the rod-shaped body 21 and the size of the diameter. The operating torque is set.

  Next, FIG. 9 illustrates the connecting portion of the buckle 70 and the shoulder belt 3 as a structure in which the shoulder belt rotates while having a constant torque in a stepless manner instead of a click operation. The connecting tool 60 is attached so as to sandwich the rod-like body 71 of the buckle 70, and after attachment, the rod-like body 71 is sandwiched and sandwiched by attaching the pressing spring 30 to the outside of the connecting tool 60. After that, the shoulder belt 3 is passed through the hole of the buckle 70 so as to wrap the connection tool 60 and the shoulder belt 3 and the connection tool 60 are attached integrally using the rivet 4 and the rivet receiver 5.

  The buckle 70 and the connecting tool 60 will be described in detail using cross sections. FIG. 10 shows a state in which the shoulder belt 3 is removed. The buckle 70 includes a columnar rod-like body 71. The connector 60 has a partial friction surface 61 that is attached to the rod-like body. A holder 64 of the connecting portion 60 is attached to the columnar bar 71 of the buckle 70. The holder 64 always holds and holds the rod-shaped body 71 from the outside by the pressing spring 30. Therefore, the friction surface 61 and the rod-shaped body 71 rotate with a certain amount of resistance when rotating. The connector 60 is preferably provided with a thin portion 63 for sewing a shoulder belt and a hole 62 for attaching a caulking.

  Further, FIG. 11 illustrates the connecting portion of the buckle 90 and the shoulder belt 3 as a structure for performing a multi-stage click operation with another structure capable of obtaining the click operation. The J-shaped holder 84 of the connector 80 is attached to the polygonal rod-shaped portion 91 of the buckle 90, and the buckle 90 is sandwiched between the presser spring 30 and the connector 80 on the outside. After that, the shoulder belt 3 is passed through the hole of the buckle 20 so as to wrap the coupling tool 80, and the shoulder belt 3 and the coupling tool 80 are integrally attached using the rivet 4 and the rivet receiver 5.

  The buckle 90 and the connector 80 will be described in detail using cross sections. FIG. 12 shows a state in which the shoulder belt 3 is removed. The buckle 90 is a rod-shaped body 91 having an octagonal cross section. The connector 80 has an octagonal friction surface 81 having the same cross-sectional shape as the rod-shaped body 91 inside the J-shaped holder 84 attached to the rod-shaped body. The rod-shaped body 91 is always sandwiched and clamped from the outside by the presser spring 30 to the J-shaped holder 84. Therefore, the friction surface 81 and the rod-shaped body 91 rotate with a certain degree of resistance when rotating. do. The connector 80 is preferably provided with a thin portion 83 for sewing the shoulder belt and a hole 82 for attaching the caulking.

  In the above description, the cross-section of the rod-shaped body 21 provided in the buckle 20 is a shape having two planes parallel to both sides of the circle. The cross-section of the rod-shaped body 91 of the buckle 90 is an octagonal polyhedron. Although the cross section of the rod-like body 71 is described as a perfect circle, the angle of the click operation can be set by the cross-section shape of the cross-section of the rod-like body and the connecting surface. A rotation with torque is obtained. The operating torque at that time can also be adjusted by the spring force of the holding spring. Further, the rotation characteristics of the shoulder belt vary depending on the cross-sectional shape of the rod-shaped body, but the shape of the connecting tool having the holder may be any combination depending on the attachment method.

In the above structure, an elastic metal spring material is used because a stable click operation can be obtained over a long period of time. However, other elastic materials may be used instead of metal, in order to reduce costs. The spring member may be omitted.

  1. School bag body, 2. Shoulder belt attachment, 3. Shoulder belt, 4. Rivet, 5. Rivet receptacle, 10. Connecting tool, 11. Holder, 12. Anti-detachment holder, 13. Thin part, 14. Hole, 15 · Groove, 20 · Buckle, 21 · Bar, 22 · Cylinder, 30 · Pressing spring, 31 · Bending part, 40 · Spacer, 41 · Recess, 42 · Thin part, 50 · Leaf spring, 51 · Holding part , 60 · connector, 61 · friction surface, 62 · hole, 63 · thin wall portion, 64 · holder, 70 · buckle, 71 · rod-like body, 80 · connector, 81 · friction surface, 82 · hole, 83 · thin wall Part, 84 · J-shaped holder, 90 · buckle, 91 · rod

Claims (1)

A shoulder belt attachment device having a rod-like body on a buckle is provided, and the shoulder belt is attached to a connection device having a holder that is sandwiched by elastic force from the outside, and the connection device has resistance to the buckle. A shoulder belt attaching device, characterized in that it can be rotated while moving.

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