Attachment structure of product to satchel

Abstract

To provide an attachment structure of a product to a satchel that facilitates attachment work and can suppress unintended detachment.SOLUTION: An attachment structure of a product to a satchel includes: a product 30; and an attachment tool 50 for attaching the product 30 to the satchel. One of the product 30 and the attachment tool 50 has a T groove 10 and the other has a projection part 20 corresponding to the T groove 10. A space between a start end 12 and a terminal end 13 of the T groove 10 is provided with: a bent part 14 that bends at an acute angle; and a narrow width part 15 that restricts movement from the bent part 14 of the projection part 20 that proceeds to the terminal end 13 side over the bent part 14 to a direction of the start end 12.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This invention relates to an attachment structure of a product to a schoolbag.

Background Art

[0002] FIG. 4 of Patent Document 1 discloses attaching a ribbon across two connection points between a capsule of a schoolbag and a Y-belt.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The ribbon is screwed on by screws. Therefore, although the attachment is strong, on the other hand, the attachment takes time.

[0005] An object of the present invention is to provide an attachment structure of a product to a schoolbag that enables easy attachment work and suppresses unintentional detachment.

Means for Solving the Problems

[0006] The attachment structure of a product to a schoolbag according to the present invention includes a product 30 and a fixture 50 for attaching the product 30 to the schoolbag 40. Either the product 30 or the fixture 50 has a T-groove 10, and the other has a protrusion 20 corresponding to the T-groove 10. Between the start end 12 and the end end 13 of the T-groove 10, there are provided a bent portion 14 that bends at an acute angle, and a narrow portion 15 that restricts the movement of the protrusions 20 and 20A in the direction of the start end 12 from the bent portion 14 after passing the bent portion 14 and advancing toward the end end 13 side.

[0007] The above mounting structure has two T-grooves 10 arranged side by side on the left and right, two protrusions 20, 20A arranged side by side on the left and right, the distance W20 between the protrusions 20, 20A is smaller than the distance W14 between the bent portions 14, and from the starting end 12 to the bent portion 14, the distance W14 between the bent portions 14 is obliquely provided so as to be larger than the distance W12 between the starting ends 12. It is preferable that from the bent portion 14 to the terminal end 13, the terminal ends 13 are provided so as to approach each other.

[0008] Also, it is preferable that the fixture 50 is attached to two connection points 46 between the capsule 43 of the backpack 40 and the Y-belt 44.

[0009] Also, it is preferable that the product 30 is a light or plate-shaped decorative fixture.

Advantages of the Invention

[0010] In the mounting structure of the product to the backpack of the present invention, since the product can be mounted on the backpack simply by passing the protrusion through the T-groove, the mounting work is easier than screwing with screws. On the other hand, since it has a bent portion and a narrow portion, unintentional detachment of the product can be suppressed.

[0011] In the above mounting structure, when two T-grooves are arranged side by side on the left and right, two protrusions are arranged side by side on the left and right, the distance between the protrusions is smaller than the distance between the bent portions, and from the starting end to the bent portion, the distance between the bent portions is obliquely provided so as to be larger than the distance between the starting ends, and from the bent portion to the terminal end, the terminal ends are provided so as to approach each other, the protrusion that has entered the terminal side beyond the bent portion will naturally move away from the bent portion and move to the terminal side, so unintentional detachment can be further suppressed.

[0012] When the fixture is attached to two connection points between the capsule of the backpack and the Y-belt, the product can be easily attached to the capsule.

[0013] Since maintenance and replacement can be easily performed, it is suitable when the product is a light or plate-shaped ornament.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0015] As shown in FIGS. 1A to 1D, the mounting structure 100 of the present invention includes a T-groove 10 and a protrusion 20 corresponding to the T-groove 10.

[0016] The T-groove 10 is provided on either the product 30 or the fixture 50. Also, as shown in FIG. 1A, two T-grooves are provided side by side. The relative positional relationship and angle between the two T-grooves 10 are maintained. The two T-grooves 10 are symmetric about the left and right, but they do not necessarily have to be symmetric about the left and right. The shape of the groove opening 11 of the T-groove 10 is substantially an inverted L shape, and it has a starting end 12 that opens at the end for inserting the protrusion 20 and a terminal end 13 where the protrusion 20 cannot be advanced further. In short, it is a dead end. Between the starting end 12 and the terminal end 13, a bent portion 14 that bends at an acute angle and a narrow portion 15 are provided. The angle of the bent portion 14 is, for example, 50 to 80 degrees.

[0017] The narrow portion 15 is composed of the most protruding portion 17a of the protruding portion 17 located on the inner peripheral side of the bent portion 14 and the protrusion 18 provided on the protruding portion 17 located on the outer peripheral side of the bent portion 14 among the two protruding portions 17 described later. This protrusion 18 is provided so as to separate the bent portion 14 from the start end 12 side. Therefore, it seems that a short dead-end alley 19 is formed in the bent portion 14 by the protrusion 18. This narrow portion 15 restricts the movement of the protruding portion 20 that has advanced to the end 13 side beyond the bent portion 14 in the direction of the start end 12 from the bent portion 14. The width of the narrow portion 15 is the same as or slightly smaller than the width of the shaft portion 21 of the protruding portion 20 described later, and is set to a width that allows the shaft portion 21 to pass through due to the elastic deformation of the protrusion 18 and the most protruding portion 17a. However, it may be wider than the shaft portion 21.

[0018] When the section from the start end 12 to the bent portion 14 is defined as the first section S1 and the section from the bent portion 14 to the end 13 is defined as the second section S2, the two first sections S1 are provided obliquely such that the distance W14 between the bent portions 14 is larger than the distance W12 between the start ends 12. In FIG. 1A, it is in an inverted V shape. The two second sections S2 are provided so as to bring the ends 13 closer to each other. Both the first section S1 and the second section S2 are substantially straight but may be curved.

[0019] The cross-sectional shape of the T-groove 10 is substantially an inverted T shape as shown in FIG. 1C, and includes an enlarged portion 16 located on the lower side and a protruding portion 17 that narrows the upper part of the enlarged portion 16 from both sides. Note that the cross-sectional shape of the T-groove 10 is not limited to a substantially inverted T shape, and may be, for example, an ant-groove shape. That is, any shape can be adopted as long as it can restrict the detachment of the protruding portion 20 from the groove opening 11.

[0020] The protrusions 20 are provided on the side where the T-groove 10 is not provided, among the product 30 and the fixture 50. Also, as shown in FIG. 1A, two protrusions are provided side by side. The relative positional relationship and angle of the two protrusions 20 are maintained. The two protrusions 20 are substantially the same, but do not necessarily have to be the same. The distance W20 between the protrusions 20 is substantially equal to the distance W12 between the start ends 12 of the T-groove 10. Also, the distance W20 between the protrusions 20 is smaller than the distance W14 between the bent portions 14. Specifically, the shortest distance between the shaft portions 21 of the two protrusions 20 described later is smaller than the distance between the two most protruding portions 17a.

[0021] This protrusion 20 corresponds to the T-groove 10 and, as shown in FIG. 1D, has a shaft portion 21 passing between the protruding portions 17 and a head portion 22 provided at the lower end of the shaft portion 21 and passing through the enlarged portion 16. The width of the head portion 22 is made larger than the interval between the protruding portions 17. Therefore, the protrusion 20 cannot be removed from the T-groove 10 except from the opening of the start end 12.

[0022] To attach the protrusion 20 to the T-groove 10, first, as shown in FIG. 1B, insert the protrusion 20 into the T-groove 10 from the start end 12. Then, move the protrusion 20 relatively along the T-groove 10, and the attachment is completed when the two protrusions 20 each cross the narrow portion 15. That is, since the shortest distance between the two shaft portions 21 is smaller than the distance between the two most protruding portions 17a, when the shaft portion 21 crosses the most protruding portion 17a, the protrusion 20 automatically moves toward the end 13 side, and the removal of the protrusion 20 from the T-groove 10 is restricted (see the arrow in FIG. 1B). In particular, since the narrow portion 15 restricts the movement in the direction of the start end 12 from the bent portion 14, unintentional detachment is suppressed.

[0023] To remove the protrusion 20 from the T-groove 10, move the protrusion 20 on the end 13 side relatively toward the bent portion 14 until it reaches the start end 12.

[0024] Next, an embodiment in which the above mounting structure 100 is applied to the attachment of the product 30 to the backpack 40 will be described. As shown in FIGS. 2 to 4, the T-groove 10 is provided in the product 30, and the protrusion 20 is provided in the fixture 50. However, the T-groove 10 may be provided in the fixture 50, and the protrusion 20 may be provided in the product 30.

[0025] As shown in FIG. 2, the product 30 includes a belt-like body 31, a first body 32 attached to one end of the belt-like body 31, and a second body 33 attached to the other end of the belt-like body 31. The T-grooves 10 are respectively provided on the back surfaces of the first body 32 and the second body 33. The first body 32 and the second body 33 are connected via the belt-like body 31 and form one object. Therefore, the relative positional relationship and angle between the two T-grooves 10 are maintained. Note that one support body may be provided as a component of the product 30, and two T-grooves 10 may be provided on the support body. The starting end 12 of the T-groove 10 opens at the lower end in FIG. 2. The second section S2 of the T-groove 10 is located substantially at the center in the vertical direction of the first body 32 and the second body 33.

[0026] The belt-like body 31 is formed by passing an optical fiber through a flexible synthetic resin having translucency. The optical fiber passes substantially parallel to the longitudinal direction of the belt-like body 31. However, the optical fiber may be omitted.

[0027] The first body 32 and the second body 33 have substantially the same shape. Through holes 34 are respectively provided at the outer ends. A belt can be passed through the through holes 34, and the product 30 can be attached to the backpack 40 by passing the belt through the capsule 43. The second body 33 includes a light emitting means having a light source such as a light emitting diode, a power source such as a battery for lighting the light source, a charging connection terminal for charging the power source, and a switch for switching on, blinking, and off. In short, the product 30 is a light for prompting attention. The light from the light source is mainly emitted toward the belt-like body 31. The switch is located on the front side. The charging connection terminal is located on the back side. The charging connection terminal is covered by a cover 35. Note that the light emitting means may also be provided on the first body 32.

[0028] As shown in FIG. 3, the schoolbag 40 includes a substantially box-shaped storage portion 41 having an opening 41a at the upper part, a backrest 42 (the surface that contacts the user's back when carrying the schoolbag) extending from the upper end of the storage portion 41, and a capsule 43 that closes the opening 41a of the storage portion 41 so as to cover it, a Y-belt 44 that fixes the lower end of the capsule 43 to the bottom surface 41b of the storage portion 41, and a pair of shoulder belts 45 provided from near the upper end of the backrest 42 to the bottom surface 41b of the storage portion 41.

[0029] The fixture 50 is attached to two connection points 46 between the capsule 43 and the Y-belt 44. Specifically, the connection point 46 is a so-called snap button, which has a through hole 46a in the center as shown in FIG. 4, and the fixture 50 is detachably attached to the through hole 46a. However, it may be attached in a non-detachable manner. Also, it is not limited to being attached to the snap button, and it may be directly attached to the capsule 43 or the Y-belt 44.

[0030] The fixture 50 includes a female screw 51 and a male screw 52 that screws into the female screw 51. The threaded portion 52a of the male screw 52 is inserted into the through hole 46a from the back side of the capsule 43, and the female screw 51 is screwed onto the threaded portion 52a from the front side of the capsule 43 so that the female screw 51 protrudes from the front side of the capsule 43. In short, the protruding portion of the female screw 51 becomes the protruding portion 20. The two protruding portions 20 maintain a relative positional relationship and angle by the capsule 43 and the Y-belt 44. However, the protruding portions 20 may be connected to each other. Also, one support may be provided as a component of the fixture 50, and the two protruding portions 20 may be provided on the support. In a state where the fixture 50 is attached to the connection point 46, a gap G into which the overhanging portion 17 can enter is formed between the screw head (head portion 22) of the female screw 51 and the capsule 43 (or the connection point 46).

[0031] To attach the product 30 to the backpack 40, with the starting ends 12 of the two T-grooves 10 each applied to the protrusions 20 of the fixture 50, push the entire product 30 downward. Then, the protrusions 20 are inserted into the T-grooves 10 and pass through the first section S1. Although a catch is felt at the narrow section 15, by further pushing in, the shaft portion 21 passes through the narrow section 15 and reaches the second section S2 from the bent portion 14. Note that the distance W20 between the protrusions 20 is smaller than the distance between the bent portions 14. However, because the product 30 temporarily elongates and / or the backpack 40 contracts (or bends), the shaft portion 21 can pass through the bent portion 14. After passing through, the elongation and / or contraction (or bending) is eliminated, and the shaft portion 21 will be positioned on the terminal 13 side of the bent portion 14.

[0032] To remove the product 30 from the backpack 40, lift the product 30 upward with the shaft portion 21 applied to the narrow section 15. Since the attachment and detachment are thus easy, it is convenient to use even if it is necessary to frequently remove it for charging or the like.

[0033] Figure 5 shows a modified example of the protrusion. The protrusion 20 in Figure 1 had a head 22 whose shape was a point-symmetric circle centered on the shaft portion 21. However, the head 22 of this protrusion 20A has a shape combining a circle and a rectangle as shown in Figure 5A and has a protrusion 23 protruding radially outward from the circle. When the female screw 51 and the male screw 52 are screwed together, as shown in Figure 5B, this protrusion 23 contacts the inner surface of the enlarged portion 16 and functions as an anti-rotation prevention means for preventing the co-rotation of the female screw 51. Note that the head 22 can be configured so that when the shaft portion 21 is rotated about the rotation center with the shaft portion 21 positioned at the terminal 13, it catches on the inner surface of the enlarged portion 16, so that even if one screw is rotated, the other screw does not rotate, and reliable attachment and detachment of the screw can be achieved. That is, various shapes can be adopted as long as they include a portion that functions as an anti-rotation prevention means.

[0034] The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made and implemented within the scope of the present invention. For example, there may be one T-groove 10 and one protrusion 20 each. Even in this case, the mounting work is simple and unintentional detachment can be suppressed.

[0035] Also, when providing two T-grooves 10 and two protrusions 20 each, in FIG. 2, two T-grooves 10 are provided in one product 30, and one protrusion 20 is provided in each of the two fixtures 50. However, for example, two protrusions 20 may be provided in one fixture 50 straddling two connection points 46. Further, as long as the relative positional relationship and angle of the two T-grooves 10 are maintained, one T-groove 10 may be provided in each of the two products 30. The same applies when the product 30 is provided with the protrusion 20 and the fixture 50 is provided with the T-groove 10. That is, as long as the relative positional relationship and angle of the two T-grooves 10 are maintained, it is not necessarily required to provide two T-grooves 10 on one object, and as long as the relative positional relationship and angle of the two protrusions 20 are maintained, it is not necessarily required to provide two protrusions 20 on one object. Of course, two T-grooves 10 or two protrusions 20 may be provided on one object.

[0036] Also, when the product 30 is provided with the protrusion 20 and the fixture 50 is provided with the T-groove 10, it is preferable that the opening of the starting end 12 is open at the upper end. That is, it is preferable to arrange it such that it is pushed down during installation and lifted during removal. Note that the opening of the starting end 12 is not limited to being provided at the end, and it may be provided by widening the groove width (width of the groove opening 11) between the protruding portions 17.

[0037] The narrow portion 15 was provided on the protruding portion 17, but it may be provided on the enlarged portion 16. The product 30 is not limited to a light, but may be other electronic devices or a plate-shaped decorative fixture. The female screw 51 and the male screw 52 of the fixture 50 may be interchanged. That is, the head of the male screw 52 may be used as the protrusion 20.

Explanation of Reference Numerals

[0038] 100 Mounting Structure 10 T-Groove 11 Groove Opening 12 Starting End 13 Terminal End 14 Bending Portion 15 Narrow Portion 16 Enlarged Portion 17 Protruding Portion 17a Most Protruding Portion 18 Protrusion 19 Short Dead End S1 First Section S2 Second Section 20, 20A Protruding Portion 21 Shaft Portion 22 Head (Screw Head of Female Screw) 23 Protruding Portion (Means for Preventing Co-Rotation) 30 Product 31 Belt-like Body 32 First Body 33 Second Body 34 Through Hole 35 Cover 40 Backpack 41 Accommodating Portion 41a Opening 41b Bottom Surface 42 Back Rest 43 Capsule 44 Y-Belt 45 Shoulder Belt 46 Connection Point 46a Through Hole 50 Fixture 51 Female Screw 52 Male Screw 52a Screw Portion G Gap W20 Distance between Protruding Portions W12 Distance between Starting Ends W14 Distance between Bending Portions

Claims

1. A product and a fixture for attaching the product to a backpack, wherein either the product or the fixture has a T-groove, and the other has a protrusion corresponding to the T-groove, and a bent portion that bends at an acute angle and a narrow portion that restricts the movement of the protrusion toward the start end direction from the bent portion are provided between the start end and the end of the T-groove, a mounting structure of the product to the backpack.

2. Two T-grooves are provided side by side left and right, two protrusions are provided side by side left and right, the distance between the protrusions is smaller than the distance between the bent portions, from the start end to the bent portion, it is provided obliquely so that the distance between the bent portions is larger than the distance between the start ends, from the bent portion to the end, it is provided so as to bring the ends closer to each other, the mounting structure of the product to the backpack according to Claim 1.

3. The mounting structure of the product to the backpack according to Claim 2, wherein the fixture is attached to two connection points between the capsule and the Y-belt of the backpack.

4. The mounting structure of the product to the backpack according to any one of Claims 1 to 3, wherein the product is a light or a plate-shaped ornament.

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