JPH0636748Y2 - Bag backpack attachment - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" The present invention relates to an improvement of a backpack strap mounting device for a bag, and in particular, a backpack strap mounting for detachably connecting the upper end of the backpack strap to the bag body. It relates to the improvement of ingredients.

[Prior Art] Conventionally, the backpack strap attachment of this kind of bag has a connecting ring attached to the main body of the bag, and the backpack strap is fixed by winding the upper end around the connecting loop or by attaching the eggplant ring. It is common to connect removably by a locking ring having an eggplant contour shape called as.

[Problems to be solved by the device] However, the conventional method using the eggplant ring described above has an advantage that the backpack belt can be attached and detached, but the eggplant ring is very large and looks bad because it can withstand a large bag load. A flaw is pointed out.

Therefore, recently, it has been attempted to apply various kinds of fasteners based on synthetic resin molded products to the backpack attachment, but the synthetic resin fasteners are relatively large in size to maintain durability, The locking / unlocking operation section tends to be exposed to a large extent, and as a result, the locking / unlocking operation section touches the back or the like on its back during use,
It has been found that there is a drawback that the locking of the backpack belt is abruptly detached, and this type of synthetic resin locking tool has not come into widespread use.

[Purpose] Therefore, the present invention has been made in view of the above-mentioned drawbacks. It is made of synthetic resin, has a good appearance, has durability to withstand a large load, and does not have a concern that the lock will be detached during use. It is intended to provide a band attachment.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the structure of the present invention based on the above-mentioned utility model registration request is in the middle upper part of the rear plate portion 2 of the bag body B in accordance with the above object. To the mounting base plate 11 to be attached to
A small projection 18 for fitting and holding the key body 17, and a pair of box-shaped insertion portions 13 and 13 having an upper opening 13a are projected, and the side wall portions 13b of the box-shaped insertion portions 13 and 13, Locking window 1 on 13b
4, 14 are provided respectively, and further, at the central portion in both box-shaped insertion portions 13, a locking pillar 15 having a non-circular cross section whose diameter is large in one direction and small in the other direction, and its polygonal top surface portion 15a is provided. The box-shaped insertion part 13 is rotatably accommodated in a lock window 13d of a similar polygonal shape provided on the outer surface 13c and is rotatably housed, and the top surface 15a of the locking pillar 15 has a flat surface. A non-circular keyhole 15a 'is provided in a concave shape, and a tip portion 17a of the key body 17 for rotating the locking pillar 15 is provided with a keyhole 15a'.
a cross-sectional shape that can be inserted into a ', and further, a backpack strap body 10 formed by opening a small through hole 17c into which the small protrusion 18 fits in a knob portion 17b of the key body 17, and a base end portion. Has a connecting portion 41 of the backpack belt 50, and a pair of flexible rod bodies 42, 42 inserted into the box-like inserting portion 13 are projectingly provided at the tip of the connecting portion 41, A technique including a pair of insertion locking members 40, 40 formed by connecting locking projections 43, which are partially engaged with the locking windows 24, 24, at the free end of the sex rod body 42. It is a measure that has been taken.

"Operation" Therefore, the backpack strap mounting device of the present invention has a box-shaped insertion portion 13,13.
When the locking tools 40, 40 connected to the ends of the backpack belt 50 are inserted therein, the locking projections 43, 43 cause the locking windows 14, 14 of the box-shaped insertion parts 13, 13 to be inserted.
The backpack belts 50, 50 can be locked to the bag body B by being locked to, and the locking projections 43, 43 can be detached from the locking windows 14, 14 to be inserted and locked. If the backpack belt B is pulled out from the box-shaped insertion portions 13 and 13, the backpack belt B can be removed from the bag body.

The insertion of the insertion locking device 40 into the box-shaped insertion portion 13 will be further described with reference to FIG. 4. The locking projections 43 are provided continuously on both free ends of the flexible rods 42. The dimension between both outermost ends of 43 is set to be larger than the inner dimension in the longitudinal direction of the upper opening 13a,
Upon insertion, the tip ends of both the flexible rods 42, 42 are bent inward. Then, the locking protrusions 43, 43 are the locking windows 1
When entering the 4,14 parts, the locking projections 43,43 are moved outwardly by the elasticity of the flexible rods 42,42 and are engaged and locked in the locking windows 14,14. . Then, when detaching this locking, both locking projections 43, 43 are pushed inward to insert the locking device 4
You can extract 0.

Since the box-shaped insertion portion 13 accommodates a locking column body 15 having a non-circular cross-section, the diameter of which is large in one direction and small in the other direction, the locking column body 15 is most clearly shown in FIG. When the large diameter direction of the locking pillar 15 is located inside the two locking projections 43, 43 when the large diameter direction is turned to the left and right broken state as shown in FIG. The inward movement of the parts 43, 43 can be prevented, and the insertion locking device 40 can be locked so that it cannot be detached and attached, and the insertion locking device 40 can be locked by touching the user's body or the like. It does not come off unexpectedly, and as shown by the broken line on the left side of the figure, when the locking pillar 15 is rotated so that its large diameter direction is oriented vertically, the insertion locking device 40 can be attached and detached. It has the following effect.

Further, the locking pillar 15 is rotatably accommodated in a lock window 13d having a similar polygonal shape, the polygonal top surface 15a of which is provided on the outer surface 13c of the box-like insertion portion 13. Because there is
By appropriately setting the mutual size of the locking pillar 15 and the locking window 13d, the locking pillar 15 can be rotated, but this rotation may be somewhat unreasonable. At the same time, it is possible to perform loose locking at a predetermined rotation angle at the same time.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, B is a bag body to which the backpack attachment of the present invention is attached,
This bag body B is formed of a front plate portion 1 (see FIGS. 5 and 6), a rear plate portion 2, a bottom plate portion 3 and both side plate portions 4a and 4b.
At the upper end of the front side of the front plate portion 1 passing above the bag body B
The lid C is detachably engaged with the lid C and the handle D is provided on the top of the lid C. However, the structure of the bag body B is not limited to the illustrated example. Is of course.

10 is a backpack strap attachment body 10 which constitutes the main part of the present invention. The backpack strap attachment body 10 is a key to the attachment base plate portion 11 attached to the upper center of the rear plate portion 2 of the bag body B. A small projection 18 for fittingly holding the body 17 and a pair of box-shaped insertion portions 13, 13 having an upper opening 13a are provided in a protruding manner, and both side wall portions 13b, 13b of the box-shaped insertion portions 13, 13 are provided. Locking windows 14 and 14 are provided respectively in the box-shaped insertion portions 13, and a locking pillar 15 having a non-circular cross section with a large diameter in one direction and a small diameter in the other direction is provided at the central portion of the box-shaped insertion portions 13. Top
15a is rotatably accommodated in a lock window 13d provided on the outer surface 13c of the box-shaped insertion portion 13, and the top surface portion 15a of the locking pillar 15 has a non-circular planar shape. A key hole 15a 'is provided in a concave shape, and a tip portion 17a of the key body 17 for rotating the locking pillar 15 has a sectional shape which can be inserted into the key hole 15a'. A small through hole 17c into which the small protrusion 18 is fitted is opened in a knob portion 17b of the hole 17.

The backpack attachment 10 is integrally formed of a synthetic resin material, and is fixed to the central upper portion of the rear plate 2 by means of tacks 16, 16, 16.

The locking pillar 15 has a non-circular cross-section such as a rectangle, and the rotation position of the locking pillar 15 positions a large diameter portion and a small diameter portion in the left-right direction.

The locking pillar 15 is rotatably housed inside a lock window 13d having a polygonal top surface 15a and a polygonal shape similar to that of the box-shaped insertion portion 13 which is larger than the outer surface 13c. is there. In this embodiment, the lock window 13d is formed into a regular hexagon, and the top of the locking pillar 15 that is inserted into the lock window 13d is formed into a regular hexagon that is slightly smaller than the lock window 13d. Then, the locking pillar 15 is configured so that it can be rotated within the locking window 13d with some difficulty, and the rotation is locked at every rotation angle of 60 degrees.

Further, as in the conventional case, the key body 17 is used to rotate the locking pillar body 15, and the non-planar (W-shaped in the illustrated example) key hole 15a is dug on the upper surface of the locking pillar body 15. There is a key body 1
Although not shown in the figure, the tip of 7 has a shape that can be inserted into the keyhole 15a.

Further, in FIG. 3, reference numeral 19a denotes a ridge projectingly provided on the inner surface of the box-shaped insertion portion 13, 19b denotes a lower pivotal projection of the locking pillar 15, and the lower pivotal projection 19b is for locking. It is engaged in a recess 15b formed in the center of the lower surface of the column 15.

Further, the locking window 14 may be provided by being opened only on both side wall portions 13b, but in the illustrated example, it is extended to the outer surface 13c portion of the box-shaped insertion portion 13 to increase the locking area. It is designed to be taken.

Reference numeral 40 (most clearly shown in FIG. 4) is a plug-in locking device that is detachably locked to the backpack belt fitting body 10 and has a connecting portion 41 of the backpack belt 50 at the proximal end. And this connection
A pair of flexible rods 42, 42 that are inserted into the box-shaped insertion portion 13 are provided at the tip of 41 so as to project, and a part of the flexible rod 42 is locked at the free end thereof. Locking protrusion 43 that is engaged in the windows 24, 24
It will be connected in series.

The insertion locking device 40 is also integrally formed of a synthetic resin material, and the end of the backpack belt 50 is wound and fixed to the horizontal rail portion 41a provided in the backpack belt connecting portion 41 by a conventional method. Then, the flexible rod 42
Has a predetermined flexibility depending on its thickness and length, and the locking projection 43 which is continuously provided at the tip of the flexible rod 42 has a box-shaped insertion portion whose thickness in the vertical direction in FIG. It is not dimensioned to allow it to be loosely inserted in 13, and the left and right outer side surfaces 43d, 43d of both locking projections 43, 43 are curved surfaces with the front and rear centers protruding outward, the left and right dimensions of both locking projections 43, 43 Is the maximum distance that the tip is curved so that it can be loosely inserted into the box-shaped insertion part 13 and the foot 23, and the rear end sides of both locking projections 43, 43 are the inner dimension of the box-shaped insertion part 13 in the left-right direction. It is set larger. Further, a part of the locking protrusion 43 is the locking window 24.
In the illustrated example, the stepped portions 43a and 43b formed at the connecting portion between the flexible rod 42 and the locking projection 43 are sufficient.
Are locked in the locking window 24. Although not explicitly shown in the figure, this inner upper side of the locking projection 43
43c has a curved corner, and when both locking projections 43, 43 are pushed inward, the locking projections 43 are disengaged from the locking windows 24, 24 and the locking projections It is made easy to push 43, 43 inward.

In this embodiment, box-shaped legs 22 and 23 are provided on both sides of the outer surface of the bottom plate portion 3 on the front plate portion 1 side and the rear plate portion 2 side of the mounting base plate portion 21, respectively. The foot 23 on the rear plate portion 2 side has an opening 23a on the rear plate portion 2 side, and locking windows 24, 24 on both side wall portions 23b, 23b.
A pair of bottom footwear 20, 20 each of which is provided is provided.

The bottom leg 20 is also integrally molded with a synthetic resin material, and the tack 2
It is designed to be fixed to the upper center part of the bottom plate 2 with 6,26 or the like. Then, the one foot 23 is formed in the same shape as the locking pillar 15 is omitted from the box-shaped insertion portion 13 of the backpack strap attachment 10 described above, and further, the lower end of the backpack strap 50. Since it also serves as the manufacturing type of the insertion locking device 40, 40 connected to the side,
It is desirable that the size of each part be the same. In addition,
In the illustrated example, the ground protrusions 22 are further provided on the lower surfaces of the box-shaped feet 22 and 23.
Although the protrusions a and 23a are provided, the ground protrusions 22a and 23a may be omitted.

Further, in the illustrated embodiment, the lower ends of the bag body B are folded in a U-shape along the lower plate both ends of the front plate 1 and the rear plate 2 and the both ends of the bottom plate 3 in a two-fold cross section. The bent edge covers 30 and 30 are joined to the two folded groove portions 31 at the joints between the lower end portions of the front plate portion 1 and the rear plate portion 2 and the lower end portions of the side plate portions 4a and 4b, and both end portions of the bottom plate portion 3. The joint between the bottom side of the side plate portions 4a and 4b and the one side portion of the attachment base plate portion 21 of the bottom leg 20 are fitted and arranged. The edge cover 30 is also integrally formed of a synthetic resin material, and is fixed to a proper position of the bag main body B with a tack 36 or the like. The shape-retaining function of the bottom of the bag body B is increased. In addition, the lower surface of the edge cover 30 is provided with a bulging portion 30a into which one side of the mounting base plate portion 21 is fitted. The bulging portion 30a also serves to reinforce the edge cover 30 itself. The entire lower surface of 30 does not bulge, but the shape is complicated as a local bulge.

[Advantage of the Invention] The present invention provides a backpack strap mounting tool for a bag, in which the backpack strap mounting tool 10 and the insertion locking tools 40, 40 can both be made of synthetic resin and have a good appearance. Is something that can be done.

In particular, even if the plug-in locks 40, 40 described above are large in size so as to withstand a large load, the box-shaped plug-in part is attached when mounted.
Since it is inserted into 13 and most of it is not exposed, the appearance is not spoiled, and furthermore, the insertion locking tool 40, 40 is less likely to contact the user's body and give a feeling of foreign matter, and the usability is good. It is possible to provide a backpack strap mounting device for a bag.

Particularly, in the present invention, the insertion locking device 40, 40 is provided with locking windows 14, 14 on both side walls 13b, 13b of the box-shaped insertion part 13, 13, and the locking windows 14, 14 are provided. In addition, since the locking projections 43, 43 at the free end of the flexible rod body 42 are engaged, the locking projections 43, 43 do not contact the back in a normal use state, (EN) It is possible to provide a backpack strap mounting device for a bag that does not reduce the usability and can prevent accidental disengagement.

It is also assumed that when the backpack belts 50, 50 are worn and carried on the back, the insertion locking devices 40, 40 come into contact with the user's body.
However, the backpack strap attachment that locks the upper end of this backpack strap 50
Since the locking pillar 15 is arranged in 10, the plug-in locking device
It is possible to provide a backpack strap attachment for a bag that does not have to be detached even if 40, 40 touches the body.

[Brief description of drawings]

FIG. 1 is a rear view of the bag equipped with the backpack strap mounting device of the present invention, FIG. 2 is a front view of the backpack strap mounting device of the present invention, FIG. 3 is a cross section taken along line AA, and FIG. FIG. 5 is a perspective view for explaining the action of the locking device, FIG. 5 is a partial side view of the bottom of the bag in FIG. 1, and FIG.
The drawing is a partial bottom view of the bag, and FIG. 7 is a sectional view taken along line BB. 2 ... Rear plate, 10 ... Negative band fixture, 11 ... Mounting base plate,
13: Box-shaped insertion part, 13a: Top opening, 13b: Side wall part,
13c ... outer surface, 13d ... lock window, 14 ... locking window, 15 ... locking pillar, 15a ... top surface, 15a '... key hole, 17 ... key body, 17a ... small projection , 17b ...... Knob part, 17c ...... Small through hole, 18 ...... Knob part, 40 ...... Insert locking device, 41 ...... Back strap connection part, 42 ...... Flexible rod body, 43 ...... Locking Projection, 50 ……
Shoulder strap, B ...... Bag body

Claims (1)

[Scope of utility model registration request] 1. A pair of box-shaped inserts having a small projection 18 for fitting and holding a key body 17 and an upper opening 13a in a mounting base plate portion 11 mounted on the central upper portion of a rear plate portion 2 of a bag body B. And the locking window 1 on both side wall portions 13b, 13b of the box-shaped insertion portion 13, 13.
4, 14 are provided respectively, and further, at the central portion in both box-shaped insertion portions 13, a locking pillar 15 having a non-circular cross section whose diameter is large in one direction and small in the other direction, and its polygonal top surface portion 15a is provided. The box-shaped insertion part 13 is rotatably accommodated in a lock window 13d of a similar polygonal shape provided on the outer surface 13c and is rotatably housed, and the top surface 15a of the locking pillar 15 has a flat surface. A non-circular keyhole 15a 'is provided in a concave shape, and a tip portion 17a of the key body 17 for rotating the locking pillar 15 is provided with a keyhole 15a'.
a cross-sectional shape that can be inserted into a ', and further, a backpack strap body 10 formed by opening a small through hole 17c into which the small protrusion 18 fits in a knob portion 17b of the key body 17, and a base end portion. Has a connecting portion 41 of the backpack belt 50, and a pair of flexible rod bodies 42, 42 inserted into the box-like inserting portion 13 are projectingly provided at the tip of the connecting portion 41, A bag including a pair of insertion locking members 40, 40, which are formed by connecting locking projections 43, part of which are engaged in the locking windows 24, 24, at the free end of the sex rod body 42. Back strap attachment.