Anti-slip device for bags

Abstract

To provide an anti-slip tool for a bag, which can surely prevent the shoulder strap of a bag hung on the shoulder from slipping off. [Solution] The device comprises a plate-shaped main body 1, first and second clavicle holding parts 2, 3 which protrude from a surface 1a of the main body 1 and face each other with a gap between them, and distance adjustment mechanisms 4, 5, 6 which adjust the distance between the first and second clavicle holding parts 2, 3 by moving the first clavicle holding part 2 and the second clavicle holding part 3 relative to each other, and shoulder straps 7, 8 which are connected to a bag are attached to the back surface 1b of the main body 1. The main body 1 is placed on the body of a user so that the surface 1a of the main body 1 faces the user's clavicle, and the user's clavicle is held between the first clavicle holding part 2 and the second clavicle holding part 3, the distance between which has been adjusted by the distance adjustment mechanisms 4, 5, 6.

Description

[Technical field]

[0001] This invention relates to an anti-slip device for a bag that prevents the shoulder strap of the bag from slipping off the shoulder. [Background technology]

[0002] In order to prevent the strap of a bag worn on the shoulder from slipping off the shoulder, a non-slip material is attached to the strap. For example, a sheet-like non-slip material made of a material with a high friction coefficient is attached to the shoulder strap and placed on the shoulder. In this way, when only the frictional force of the material is used, a gap is likely to be formed between the non-slip material and the shoulder, making it difficult to obtain a friction effect. In addition, as in Patent Documents 1 and 2, there are also devices in which a cushioned pad attached to the shoulder belt is placed between the belt and the body surface, and the pad deforms to conform to the unevenness of the body surface, eliminating gaps and making the wearer less likely to slip. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3176629 [Patent Document 2] Utility Model Registration No. 3164769 Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, even when using an elastically deformable pad, the magnitude and direction of the force acting on the pad varies depending on the weight and size of the bag, the direction of the shoulder strap, the user's body shape, etc. Therefore, the pad does not always fit the unevenness of the body sufficiently, and the anti-slip effect is not fully exhibited. Therefore, it is not possible to prevent the bag from being dropped, or even if it is not dropped, the uncomfortable feeling of it being about to fall.

[0005] An object of the present invention is to provide an anti-slip device for a bag which can more reliably prevent the shoulder strap of a bag hung on the shoulder from slipping off. [Means for solving the problem]

[0006] A first invention comprises a plate-shaped main body, first and second clavicle holding parts protruding from the surface of the main body and facing each other with a gap between them, and a distance adjustment mechanism which adjusts the distance between the first and second clavicle holding parts by moving the first and second clavicle holding parts relatively to each other, wherein a shoulder belt connected to a bag is attached to the back surface of the main body and the main body is placed on the body of a user so that the surface of the main body faces the user's clavicle, and the user's clavicle is held between the first and second clavicle holding parts, the distance between which has been adjusted by the distance adjustment mechanism.

[0007] In a second aspect of the present invention, the back surface of the main body is provided with a belt guide portion that guides and directs the shoulder belt in a direction that intersects with the direction in which the first clavicle holding portion or the second clavicle holding portion moves by the distance adjustment mechanism.

[0008] In a third invention, the main body is provided with a shoulder rest portion on the opposite side of the second clavicle holding portion to the first clavicle holding portion, the shoulder rest portion being bent toward the surface at a bending line extending in a direction intersecting the direction in which the first clavicle holding portion or the second clavicle holding portion moves by the spacing adjustment mechanism of the main body.

[0009] In a fourth aspect of the present invention, the belt guide portion includes a guide changing mechanism for changing the guide direction of the shoulder belt.

[0010] In the fifth invention, the shoulder belt consists of a first and a second belt separated by the back surface of the main body, the end sides of the first and second belts are rotatably attached to the back surface of the main body, and a rotation mechanism is provided that enables the rotation positions of the first and second belts to be maintained.

[0011] In a sixth aspect of the present invention, the first and second clavicle holding portions each include an arcuate portion that protrudes toward the opposing side.

[0012] In a seventh aspect of the present invention, the main body includes the shoulder belt having bag attachment parts at both ends for attaching and detaching a bag. Effect of the Invention

[0013] According to the first aspect of the present invention, the shoulder strap can be secured to the collarbone to prevent it from slipping off. In particular, the distance between the collarbone holders can be adjusted to fit the collarbone of the user, so the position of the shoulder strap is fixed and the bag can be more reliably prevented from slipping off.

[0014] According to the second aspect of the present invention, the shoulder belt can be guided by the belt guide in a direction that reduces the force acting on the shoulder belt in the direction that causes it to slide down. Therefore, the shoulder belt, and therefore the bag, are less likely to slip off, and the user is prevented from experiencing pain or discomfort due to a large force acting on the clavicle holding portion.

[0015] According to the third aspect of the present invention, when the anti-slip device is attached to the right or left clavicle, the shoulder pad can be made higher from the neck side toward the arm side. Therefore, the shoulder belt is pressed against the folding line of the shoulder pad, and the inclination of the folding line that is higher on the arm side makes it difficult for the shoulder belt to slip down to the arm side.

[0016] According to the fourth aspect of the present invention, the direction of the shoulder belt can be changed by moving the belt guide portion, so that the shoulder belt can be guided in the optimal direction according to the user's body shape and the position where it is worn.

[0017] According to the fifth aspect of the present invention, the first and second belts can be rotated individually to set their respective directions. This allows the shoulder strap to be oriented in a direction that is less likely to be pulled by the weight of the bag, and in a direction that is less likely to leave a gap between the shoulder strap and the user's shoulder. This makes it possible to more reliably and comfortably prevent the bag from slipping off.

[0018] According to the sixth aspect of the present invention, the portions of the first and second clavicle-holding parts that face the clavicle are circular arcs. Since the clavicle is held by point contact between the pair of circular arcs, the first and second clavicle-holding parts that hold the clavicle are less likely to slip even if the angle of the clavicle or the body shape is different. In addition, there are no sharp edges that may come into contact with the user.

[0019] According to the seventh aspect of the present invention, the shoulder strap that is attached to the main body in advance can be attached to the bag, and the bag can be used as a shoulder bag that will not slip off. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a diagram of the surface of an anti-slip device according to a first embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II in FIG. [Diagram 3] FIG. 3 is a diagram of the back surface of the anti-slip tool of the first embodiment. [Figure 4] FIG. 4 is a schematic diagram showing a state in which the anti-slip tool of the first embodiment is used. [Diagram 5] FIG. 5 is a diagram of the back surface of the anti-slip tool of the second embodiment. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is a diagram of the surface of the anti-slip device of the third embodiment. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. [Figure 9] FIG. 9 is a schematic diagram showing the usage of the anti-slip tool of the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] [First embodiment] The anti-slip tool of the first embodiment of the present invention will be described with reference to Figures 1 to 4. Figure 1 is a diagram of the front side of the anti-slip tool of the first embodiment, Figure 2 is a cross-sectional view of the anti-slip tool, and Figure 3 is a diagram of the back side of the anti-slip tool. Figure 4 is a schematic diagram showing the use of the anti-slip tool of the first embodiment.

[0022] The anti-slip tool of the first embodiment shown in Figures 1 to 3 includes, for example, a resin plate-shaped main body 1. The side of this main body 1 shown in Figure 1 is a front surface 1a that faces the user, and the opposite side is a back surface 1b shown in Figure 3. The surface 1a of the main body 1 is provided with a first clavicle holding portion 2 which protrudes approximately perpendicularly from the surface 1a by bending the lower end side of the main body 1, and a second clavicle holding portion 3 which faces the first clavicle holding portion 2.

[0023] In addition, the main body 1 is formed with a slit 4 that extends linearly from the end facing the first clavicle holding portion 2 toward the first clavicle holding portion 2 and penetrates the thickness of the main body 1. The second clavicle-holding part 3 is cylindrical with a bottom. The second clavicle-holding part 3 is attached to the main body 1 by a locking bolt 5 that passes through the axial hole 3b in the center of the bottom surface 3a and the slit 4, and a wing nut 6 on the back surface 1b side, which will be described later (see Figs. 2 and 3). Here, the head of the locking bolt 5 is housed inside the second clavicle-holding part 3. In FIG. 1, the first and second belts 7 and 8 provided on the back surface 1b are omitted.

[0024] 3, on the back surface 1b of the main body 1, the end sides of the first belt 7 and the second belt 8 are overlapped at a position corresponding to the second clavicle holding part 3 provided on the front surface 1a, and the locking bolt 5 is passed through and the wing nut 6 is fastened to the locking bolt 5. The first belt 7 and the second belt 8 are long flat belts. In FIG. 2, reference numerals 10, 11, and 12 all denote doughnut-shaped washers. The first and second belts 7, 8 are provided at their respective ends with connecting members 9a, 9b, which are bag attachment portions that allow the bag body 13 to be detachably attached.

[0025] By loosening the wing nut 6, the locking bolt 5 penetrating the bottom surface 3a of the second clavicle holding part 3 on the surface 1a side can be moved along the slit 4 on the surface 1a, and by tightening the wing nut 6, the moved position of the second clavicle holding part 3 can be maintained. In this manner, by moving the second clavicle holding part 3, the opposing distance between the first clavicle holding part 2 and the second clavicle holding part 3 can be adjusted. The locking bolt 5, the wing nut 6, and the slit 4 constitute a mechanism for adjusting the opposing distance between the first clavicle holding part 2 and the second clavicle holding part 3.

[0026] Furthermore, the rotational positions of the first and second belts 7, 8 can be maintained by loosening the wing nuts 6, rotating the first and second belts 7, 8 around the locking bolts 5, and then tightening the wing nuts 6. That is, the bolts 5 and the wing nuts 6 constitute a rotation mechanism that allows the first and second belts 7, 8 to rotate and maintain their rotational positions.

[0027] [Actions and Effects] A method of using the anti-slip tool of the first embodiment will be described. As shown in the schematic diagram of FIG. 4, the connecting members 9a, 9b of the first and second belts 7, 8 are attached to the bag body 13, and the second belt 8 is hung on the shoulder of the user. The main body 1 is placed on the clavicle B and moved along the clavicle B, and the second clavicle holding part 3 is moved along the slit 4 at an appropriate position, and the distance between the first clavicle holding part 2 and the second clavicle holding part 3 is adjusted to hold the clavicle B. In this way, in this anti-slip device, the opposing distance between the first clavicle holding part 2 and the second clavicle holding part 3 can be adjusted according to the physique of the user. By adjusting the opposing distance between the first clavicle holding part 2 and the second clavicle holding part 3, the main body 1 can be more reliably positioned relative to the clavicle of the user, i.e., the user's body and the user's shoulder, regardless of the user's physique. Furthermore, since the second clavicle holding portion 3 has a cylindrical shape, the second clavicle holding portion 3 can fit into the depression above the user's clavicle B and stably hold the clavicle B between itself and the first clavicle holding portion.

[0028] The appropriate position of the main body 1 is a position where the first and second belts 7, 8 are unlikely to slip off and where the user feels little discomfort when their collarbone is clamped. As shown in Fig. 4, the first belt 7 extending downward from the main body 1 is inclined with respect to the vertical line L as it approaches the side of the user, and is pulled diagonally downward by the weight of the bag body 13. The pulling force at this time causes the shoulder strap to slide on the shoulder. However, in this embodiment, the end of the first belt 7 is fixed to the clavicle B via the main body 1, so the weight of the bag body 13 does not cause the first and second belts 7, 8 to slide down.

[0029] In addition, in the first embodiment, the direction of the second belt 8 can be individually adjusted according to the inclination of the shoulder, so that the second belt 8 can be made less slippery. For example, the direction of the second belt 8 on the shoulder can be adjusted so as to be perpendicular to the inclination of the shoulder, and the inclined surface of the shoulder and the flat second belt 8 can be brought into surface contact with each other to increase the contact area between the inclined surface of the shoulder and the second belt 8, thereby increasing the frictional force. Conventionally, when the belt of the bag body is flat, if the belt on the shoulder is pulled diagonally downward by the weight of the bag body, it becomes difficult to make surface contact with the inclined surface of the shoulder. In contrast, in the first embodiment, the inclined surface of the shoulder and the flat second belt 8 can be brought into surface contact with each other to increase the contact area between the inclined surface of the shoulder and the second belt 8. In this way, while the main body 1 is fixed to the clavicle B, the direction of the second belt 8 is adjusted to suppress the pulling force generated when the second belt 8 tries to slide down the shoulder, thereby reducing the force acting on the clavicle B via the main body 1.

[0030] Furthermore, a locking bolt 5 passes through the axial hole 3b in the bottom surface 3a of the second clavicle holding part 3 and the slit 4, and the first belt 7 and the second belt 8 are overlapped and held at their end sides by the threaded part of the passing locking bolt 5. In this way, the anti-slip device realizes a distance adjustment mechanism for the first and second clavicle holding parts 2, 3 and a rotation mechanism for the first belt 7 and the second belt 8, with the locking bolt 5 as a common component.

[0031] In addition, since the head of the fastening bolt 5 is housed in the second clavicle holding part 3, the head of the fastening bolt 5 does not come into contact with the user wearing the anti-slip device. For example, it is possible to attach the ends of the first belt 7 and the second belt 8 to the main body 1 at a location other than the second clavicle holding part 3 with a fastening bolt. However, in that case, due to the configuration of the anti-slip device, the head of the fastening bolt protrudes from the surface 1a of the main body 1. This means that the head of the fastening bolt 5 will come into contact with the user wearing the anti-slip device. In contrast, in the first embodiment, the head of the fastening bolt 5 does not come into contact with the user wearing the anti-slip device, so the user wearing the anti-slip device will not feel uncomfortable.

[0032] In the first embodiment, the shoulder belt is composed of separate first and second belts 7 and 8, but the first and second belts 7 and 8 may be integrated. If the belt material is flexible, there will be no discomfort even if the belt bends at the main body 1 and changes direction. In FIG. 4, the second belt is hung on the left shoulder of the user, but by adjusting the directions of the first and second belts 7, 8, it can also be hung on the right shoulder.

[0033] Furthermore, even if the first and second belts 7, 8 attached to the main body 1 are not rotated to adjust their direction, if the first clavicle holding portion 2 and the second clavicle holding portion 3 of the main body 1 are moved relative to each other as described above to hold the clavicle B at an appropriate distance, the bag body 13 can be prevented from slipping off. However, if the angle of the first and second belts 7, 8 can be adjusted as in this embodiment, the holding force on the clavicle B is not too strong, and the bag can be prevented from slipping off without applying a load to the clavicle. If the holding force on the clavicle is too strong or if the weight of the bag body 13 is supported by the clavicle, the clavicle B area may be painful or feel uncomfortable, but there is no need to worry about this in this embodiment.

[0034] [Second embodiment] The anti-slip tool of the second embodiment will be described with reference to Figures 5 and 6. Figure 5 is a view of the back surface of the anti-slip tool of the second embodiment, and Figure 6 is a cross-sectional view. In the second embodiment, a belt guide portion 14 that guides the direction of the belt is provided on the back surface 1b side of the main body 1. The configuration of the main body 1 and its front surface 1a side is the same as that of the first embodiment, and in Figures 5 and 6, the same reference numerals as in Figure 1 are used for the same components as in the first embodiment.

[0035] Unlike the first embodiment, the belt guide section 14 of the second embodiment is composed of a cylindrical guide section main body 14a through which one shoulder belt passes, and a plate-like support section 14b continuous therewith. The axial direction of the tube of the guide section main body 14a is the direction in which the shoulder belt is guided, and the belt passed through the tube of the guide section main body 14a is guided in the direction of the arrow 16 in Fig. 5. The direction of the arrow 16 is a direction that intersects with the direction in which the first clavicle holder 2 or the second clavicle holder 3 moves (the direction of the slit 4). FIG. 6 shows a cross section of the shoulder belt 15 inserted into the guide portion main body 14a.

[0036] Further, an axial hole 14c is formed in the support portion 14b, and a locking bolt 5 passes through the axial hole 3b of the second clavicle holding portion 3 and the slit 4 together with the washers 10, 11, and 12. The belt guide portion 14 is made rotatable about the locking bolt 5, and by tightening the wing nut 6, the support portion 14b is fixed to the main body 1, and the position of the guide portion main body 14a is fixed. In the second embodiment, the locking bolt 5 and the wing nut 6 constitute a guide changing mechanism that enables the guide direction of the shoulder belt in the belt guide portion 14 to be changed.

[0037] [Actions and Effects] In the anti-slip device of the second embodiment, the distance between the first clavicle holding portion 2 and the second clavicle holding portion 3 can also be adjusted by loosening the wing nut 6, thereby appropriately clamping the user's clavicle. In addition, the direction of the shoulder belt can be freely changed by the rotating belt guide 14, and the shoulder belt can be guided in the direction that is least likely to slip off without causing discomfort to the user. For example, if the belt guide 14 is fixed to the position 14X shown by the two-dot chain line in Fig. 5, the shoulder belt will be less likely to slip off when hung on the left shoulder as shown in Fig. 4. Also, by moving the belt guide portion 14 to the position 14Y to change the angle of the shoulder belt, it can be used for the right shoulder, and the bag will not slip off no matter which shoulder it is worn on.

[0038] In addition, a shoulder belt having connecting members at both ends for attachment to the bag body may be inserted into the cylindrical guide body 14a in advance, or the sides of the tube may be made openable and closable so that the shoulder belt fixed to the bag body can be inserted therethrough later. If the shoulder strap is not integrated with the main body 1 but has a mechanism that allows it to be attached and detached from the main body 1, shoulder straps from various bags can be used as they are. On the other hand, if a shoulder strap with bag attachment parts (connecting members) on both ends is provided as a set with the main body 1, a handbag, for example, can be used as a shoulder bag that will not slip off.

[0039] [Third embodiment] An anti-slip tool according to a third embodiment of the present invention will be described with reference to Figures 7 to 9. Figure 7 is a diagram of the surface of the anti-slip tool according to the third embodiment, Figure 8 is a cross-sectional view of the anti-slip tool, and Figure 9 is a schematic diagram showing the use of the anti-slip tool according to the third embodiment. In the third embodiment, the main body 1 is provided with a plate-shaped shoulder rest portion 17.

[0040] The shoulder rest portion 17 in the third embodiment is integrated with the main body 1, and as shown in Figures 7 and 8, is the portion opposite the first clavicle holding portion across the second clavicle support portion, and is formed by folding toward the surface 1a at the folding line 17a. The folding line 17a is set in a direction intersecting with the direction in which the slit 4 extends (the direction in which the first clavicle holding portion 2 or the second clavicle holding portion 3 moves). The folding line 17a is not actually drawn on the main body 1, but is illustrated for the purpose of explanation. The folding line 17a does not intersect perpendicularly with the direction in which the slit 4 extends, but intersects with an inclination with respect to the direction in which the slit 4 extends. That is, the upper end of the main body 1 or the lower end of the shoulder rest portion 17 is inclined with respect to the direction in which the slit 4 extends. In this way, the main body 1 is the same as the first embodiment except that it has the shoulder rest portion 17 and a length for integrally forming the shoulder rest portion 17 at the upper end side. In Figs. 7 and 8, the same reference numerals as those in Fig. 1 are used for the same components as those in the first embodiment.

[0041] [Actions and Effects] In the anti-slip tool of the third embodiment, when viewed from the front surface 1a side as shown in FIG. 7, the one in which the folding line 17a is set to rise to the right is for the right shoulder to be worn around the right collarbone B. In this third embodiment, as in the anti-slip devices of the first and second embodiments, the first clavicle holding part 2 and the second clavicle holding part 3 hold the clavicle B of the user. At this time, the wing nut 6 of the shoulder belt is adjusted so that the second belt 8 passes over the folding line 17a.

[0042] Here, the folding line 17a is set so that the right side is higher on the surface 1a in the direction intersecting the direction in which the slit 4 extends, so that when the right clavicle B is clamped between the first and second clavicle holders 2 and 3 with the slit 4 in the vertical direction, the folding line 17a rises toward the right arm A as shown in FIG. 9. Then, the second belt 8 pressed against the folding line 17a is subjected to a force in the direction of the arrow 18 from the right arm A side toward the neck N side due to the gradient of the folding line 17a. Therefore, the second belt 8 is less likely to move toward the right arm A side. Therefore, in addition to the anti-slip effect in the first and second embodiments, the shoulder belt can be made less likely to slip off the shoulder.

[0043] If the fold line 17a of the shoulder rest 17 is set to be upward and to the left as viewed from the front surface 1a side of FIG. 7, it can be used for the left shoulder of the user to be attached to the left clavicle. The shoulder rest 17 may be freely bent at the fold line 17a with respect to the main body 1. That is, the shoulder rest 17 can also be rotated at the fold line 17a at the upper end of the main body 1. In this case, the shoulder rest 17 is arranged along the shape of the shoulder above the clavicle of the user, and it is possible to prevent the user from feeling uncomfortable. The fold line 17a may also be made to intersect perpendicularly to the direction in which the slit 4 extends. Even in this case, since the clavicle itself is originally inclined downward from the arm side toward the neck side, if the anti-slip device is firmly attached to the clavicle, the fold line 17a will also be inclined from the arm side toward the neck side, so that the anti-slip device can make it more difficult for the shoulder strap to slip off the shoulder.

[0044] [Other embodiments] In the above first, second and third embodiments, the clavicle is sandwiched between the plate-shaped first clavicle holding portion 2 and the cylindrical second clavicle holding portion 3, but the shapes of the first and second clavicle holding portions are not limited to those of the above embodiments. In the above, the first clavicle-holding portion 2 is flat and the second clavicle-holding portion 3 is cylindrical, but the second clavicle-holding portion 3 may be, for example, semi-cylindrical so that it is parallel to the first clavicle-holding portion 2. Also, the first clavicle-holding portion 2 may be replaced with a cylinder, and both the first and second clavicle-holding portions may be cylindrical.

[0045] When the first and second clavicle holders 2, 3 are both made of cylinders, the parts facing the clavicle are the arcuate surfaces of the sides of the cylinders, so the clavicle is held by point contact of a pair of arcs. Therefore, even if the angle of the clavicle or the body shape is different, it is easier to adjust the distance to an appropriate distance compared to when contact is made by a surface or line, and the first and second clavicle holders 2, 3 holding the clavicle are less likely to slip out of place. In addition, there is no risk of the angular parts hitting the user. However, as long as the first and second clavicle-holding portions 2, 3 each have an arcuate portion that protrudes toward the opposing side, the same effect can be expected even if they are not cylindrical. Moreover, both the first clavicle-holding portion 2 and the second clavicle-holding portion 3 may be separate members from the main body 1, and both may be made movable so that the opposing distance can be adjusted. [Industrial Applicability]

[0046] It can prevent various bags from slipping off. [Explanation of symbols]

[0047] 1 Main unit 1a surface 1b back side 2 First clavicle retainer 3 Second clavicle retainer 4 Slit 5 Locking bolt 6 Wing nut 7 First Belt 8 Second Belt 9a, 9b (mounting part) connecting member 13 Bag body 14 Belt guide part 14a Guide body 14b Support part 17 Shoulder rest 17a Fold line

Claims

1. A plate-shaped body, First and second clavicle holders protruding from a surface of the main body and facing each other with a gap therebetween; a distance adjustment mechanism that adjusts a distance between the first and second clavicle holding portions by moving the first and second clavicle holding portions relative to each other; Equipped with A shoulder strap connected to the bag is attached to the back of the main body. The anti-slip device for a bag is placed on the body of a user so that the surface of the main body faces the user's clavicle, and the first clavicle holding portion and the second clavicle holding portion, the opposing distance between which is adjusted by the distance adjustment mechanism, hold the user's clavicle.

2. A belt guide portion is provided on the back surface of the main body for guiding and directing the shoulder belt in a direction intersecting with a direction in which the first clavicle holding portion or the second clavicle holding portion moves by the distance adjustment mechanism. The anti-slip device for a bag according to claim 1.

3. The main body includes a shoulder rest portion provided on the opposite side of the first clavicle holding portion across the second clavicle holding portion, the shoulder rest portion being bent toward the front side along a bending line extending in a direction intersecting a direction in which the first clavicle holding portion or the second clavicle holding portion moves by the distance adjustment mechanism of the main body. The anti-slip device for a bag according to claim 1.

4. The belt guide portion is provided with a guide change mechanism for changing the guide direction of the shoulder belt. The anti-slip device for a bag according to claim 2.

5. The shoulder strap is made up of a first belt and a second belt separated by a back surface of the main body, The end sides of the first and second belts are rotatably attached to the back surface of the main body, and a rotation mechanism is provided to enable the rotation positions of the first and second belts to be maintained. The anti-slip device for a bag according to claim 1.

6. The first and second clavicle holding portions each have an arcuate portion protruding toward the opposing side.

3. An anti-slip device for a bag according to claim 1 or 2.

7. The main body is provided with the shoulder belt having bag attachment parts at both ends for attaching and detaching the bag.

3. An anti-slip device for a bag according to claim 1 or 2.

Images