CN112439169B - Swimming goggles - Google Patents

Abstract

The invention provides swimming goggles. The swimming goggles are provided with a headband which prevents shaking of the ends, can be easily replaced, and can be adjusted in length. The swimming goggles have a headband and a slider mounted on the headband. At least one of the opposite ends of the headband in the extension direction has an engagement region disposed at a position spaced apart from the distal end in the extension direction, and a pair of restricting projections that are vertically provided between the distal end and the engagement region and face each other in the extension direction. The slider has a 1 st opening and a 2 nd opening through which the headband can pass, and the 2 nd opening side portion of the slider is positioned between the pair of restricting projections to restrict movement in the front-rear direction, while the 1 st opening side portion is movable in the front-rear direction in a state where the slider is standing up with respect to the headband, and the engagement region is engaged with the 1 st opening edge to prevent movement in the front-rear direction in a state where the slider is tilted with respect to the headband.

Description

Swimming goggles

Technical Field

The invention relates to swimming goggles.

Background

Conventionally, there is known swimming goggles provided with a headband that can be adjusted in length. For example, patent document 1 discloses swimming goggles including a goggle body, a headband attached to the goggle body, and an 8-ring for adjusting the length of the headband. The headband has two end portions facing each other in the extending direction, and the two end portions are folded back on both sides of the goggle body and maintained in a state of being folded back by the 8-shaped ring. In patent document 2, a plurality of protruding portions are disposed on the headband at intervals in the extending direction thereof, and the length of the headband can be adjusted by engaging engagement claws of operation members attached to both side portions of the goggle body with the protruding portions.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent application No. 2010-131326

Patent document 2: japanese patent laid-open No. 2012-139360

Disclosure of Invention

Problems to be solved by the invention

In the swimming goggles disclosed in patent document 1, when the length is adjusted, the portion of the headband that penetrates the 8-shaped ring needs to be loosened and stretched forward or backward, which is troublesome and makes it difficult to adjust the length in a worn state. On the other hand, with the swimming goggles disclosed in patent document 2, when the degree of tightening of the headband is increased by adjusting the length of the headband by a so-called ratchet mechanism, there is a problem that the folded-back distal end portion of the headband protrudes from the engagement portion to a long extent and rattles, which is an obstacle.

The invention provides swimming goggles, which are an improvement of the conventional swimming goggles and are provided with a headband, wherein the headband can inhibit the shaking of the tail end of the headband to cause an obstruction condition and can be easily adjusted in length even in a wearing state.

Means for solving the problems

The swimming goggles according to the present invention are intended for swimming goggles having a front-rear direction, and include a goggle main body, a headband coupled to a side surface of the goggle main body, and a slider for adjusting a length of the headband.

The swimming goggles according to the present invention are characterized in that the headband has an engagement region at a position spaced apart from a distal end, and a pair of restricting convex portions that are provided upright between the distal end and the engagement region and face each other in the extension direction, the slider is detachably attached to the headband, the slider has a 1 st opening and a 2 nd opening through which the headband can be inserted, the distal end of the one end portion is folded back after being inserted through the 1 st opening and is inserted through the 2 nd opening, a portion of the slider on the 2 nd opening side is positioned between the pair of restricting convex portions to restrict the movement in the front-rear direction, and in a state where the slider is standing up with respect to the headband, the 1 st opening side portion is movable in the front-rear direction, and the engaging region is engaged with the 1 st opening edge in a state where the slider is tilted with respect to the headband, so that the movement in the front-rear direction is prevented.

The swimming goggles according to the present invention include the following aspects.

(1) The engaging region is a region having a shape in which irregularities are repeated in the extending direction.

(2) The first opening of the slider has a proximal edge located in the vicinity of the second opening 2 in a direction from the first opening 1 toward the second opening 2, and a distal edge located farther from the second opening 2 than the proximal edge, and the distal edge has an engagement projection that projects in a direction toward the inside of the first opening 1 and is engageable with the engagement region.

(3) In a thickness direction cross section of the slider, the 1 st opening is offset to a front position with respect to the 2 nd opening.

ADVANTAGEOUS EFFECTS OF INVENTION

In the swimming goggles according to the present invention, the end of the headband extending rearward from the slider does not shake and become an obstacle. Further, even in the worn state, the tightening force of the headband can be appropriately adjusted by moving the slider forward and backward with respect to the headband. The slider is detachably attached to the headband, and the slider and the headband can be easily replaced.

Drawings

The drawings show specific embodiments of the present invention disclosed herein, and include not only indispensable configurations of the invention but also optional and preferred embodiments.

Fig. 1 is a perspective view of swimming goggles as an example of an embodiment of the present invention.

Fig. 2(a) is a top view of the 1 st end of the headband. Fig. 2(b) is a sectional view taken along the line ii (b) -ii (b) of fig. 2 (a).

Fig. 3(a) is a plan view of the slider. Fig. 3(b) is a sectional view taken along the line iii (b) -iii (b) of fig. 3 (a).

Fig. 4(a) is an enlarged cross-sectional view of the headband in a state where the slider is attached thereto. Fig. 4(b) is the same view as fig. 4(a) in a state where the slider is tilted.

Fig. 5(a) is a sectional view taken along the line v (a) -v (a) of fig. 1. FIG. 5(b) is a view similar to FIG. 4(a) in a state where the tab portion (Japanese: タブ portion) is pulled rearward. Fig. 5(c) is the same view as fig. 4(b) in a state where the finger is released from the tab portion.

Fig. 6(a) is a cross-sectional view similar to fig. 5(a) showing a state where the slider is gripped by a finger. Fig. 6(b) is a view similar to fig. 5(a) showing a state where the slider is raised by a finger. Fig. 6(c) is the same view as fig. 5(b) in a state where the finger is released from the slider.

Fig. 7(a) is a view similar to fig. 6(a) showing a state before the tab portion is folded back forward. Fig. 7(b) is a view similar to fig. 6(b) showing a state in which the tab portion is folded back forward and the slider is moved forward.

Fig. 8(a) is a cross-sectional view similar to fig. 5(b) of an example of another embodiment. Fig. 8(b) is a cross-sectional view similar to fig. 5(b) of an example of yet another embodiment. Fig. 8(c) is an enlarged perspective view of an engaging region of a headband in an example of yet another embodiment.

Description of the reference numerals

1. Swimming goggles; 5. a goggle body; 10. a headband; 10a, 1 st end; 10b, 2 nd end; 12. a terminal end; 13. a clamping area; 14a, a restricting convex portion; 14c, a restricting convex portion; 30. a slider; 30a, 1 st opening side portion (inner end portion); 30b, the 2 nd opening side portion (outer end portion); 31. 1 st opening; 32. a 2 nd opening; 41. a near end edge; 42. a distal edge; 43. and a snap-fit protrusion.

Detailed Description

The detailed construction of the swimming goggles 1 of the present invention will be described with reference to the accompanying drawings, as follows. In fig. 4(a) and 4(b), hatching (oblique lines) for showing the cross section is replaced with light black for convenience of explanation.

As shown in fig. 1, swimming goggles 1 according to the present invention have a vertical direction Y, a width direction X, and a front-rear direction Z, and the swimming goggles 1 include: a goggle main body 5 having a pair of eyecups 3 and a pad member 4, the eyecups 3 having lenses 2 on the front surfaces thereof, the pad member 4 being located behind the eyecups 3 and formed of a soft material; headband 10 connected to both side portions of the goggle main body 5; and a slider 30 for performing length adjustment of the headband 10.

A coupling portion 8 for coupling the headband 10, which is constituted by a pin 7 extending in the vertical direction Y and a through-hole 6, is positioned on both side portions of the goggle body 5. The swimming goggles 1 further have a longitudinal centerline P that bisects the dimension in the width direction X, and the direction toward the longitudinal centerline P in the width direction X is referred to as an inward direction, and the direction opposite to the inward direction is referred to as an outward direction.

< headband >

Referring to fig. 1 and 2(a), the headband 10 has a 1 st end portion 10a and a 2 nd end portion 10b in the extending direction a, and a bifurcated intermediate portion 10c located between the 1 st end portion 10a and the 2 nd end portion 10b in the extending direction of the headband 10. The headband 10 is coupled to the coupling portion 8 of the goggle body 5 via a loop portion 15 formed by folding the 1 st end portion 10a and the 2 nd end portion 10 b. Headband 10 has an inner circumferential dimension L1 extending along the circumference of the wearer's head between links 8. In the worn state, the tightening force of the headband 10 is reduced when the inner peripheral dimension L1 is increased, and the tightening force of the headband 10 is increased when the inner peripheral dimension L1 is reduced.

As a method of connecting the headband 10 to the connecting section 8, for example, the wearer inserts the tip 12 of the 1 st end portion 10a and the 2 nd end portion 10b of the headband 10 from the rear side toward the front side into the 1 st opening 31 of the slider 30 described later, passes through the through-hole 6 of the goggle body 5 without any change, and then winds the tip onto the pin 7, and then pulls the tip 12 further toward the rear side to pass through the 2 nd opening 32 described later, whereby the headband 10 can be connected to the goggle body 5.

The headband 10 is a soft member having rubber elasticity, and can be molded from a material having elasticity, such as silicone rubber or a thermoplastic elastomer. The slider 30 of the present embodiment is a rigid member having a flat shape, and can be molded from a rigid resin such as polycarbonate, polyamide, or ABS resin.

In the headband 10, the 1 st end 10a and the 2 nd end 10b have the same structure. In order to omit the explanation and facilitate understanding, fig. 2(a), 2(b) to 7(a) and 7(b) show the 1 st end 10a of the headband 10 and the slider 30 through which the 1 st end 10a penetrates. In the present specification, only the structure of the 1 st end portion 10a and the slider 30 will be described in the following paragraphs, but it should be understood that the 2 nd end portion 10b and the slider 30 also have the same structure.

Referring to fig. 2(a) and 2(b), the 1 st end portion 10a of the headband 10 includes a 1 st surface 11a and a 2 nd surface 11b facing each other in the thickness direction C (the direction along the width direction X of fig. 1), and an engagement region 13 located apart from the distal end 12 in the extending direction a. The engagement region 13 is a region having a shape with repeated irregularities in the extending direction a of the headband 10. In the engagement region 13 of the present embodiment, a plurality of concave portions 16 are arranged at intervals in the extending direction a of the headband 10, and the concave portions 16 are recessed from the 1 st surface 11a to the 2 nd surface 11B of the headband 10 in the thickness direction C of the headband 10 and extend in the width direction B (the direction along the vertical direction Y in fig. 1).

In a top view of headband 10, recess 16 is generally rectangular. Further, the concave portion 16 is separated in the width direction B from both side edges 17 extending in the extending direction a of the headband 10. In other words, wall portions 18 are provided on both sides of the recess 16. By providing the wall portion 18, the recessed portion 16 is prevented from becoming a starting point and the headband 10 from breaking when a rearward tensile force is applied to the headband 10.

As shown in fig. 2(b), each recess 16 has a proximal upright surface 21 located on a side close to the distal end 12 and a distal end wall surface 22 opposite to the proximal upright surface 21 in the extending direction a of the headband 10. The proximal upright surface 21 is a surface substantially orthogonal to the 1 st surface 11a of the headband 10, and the distal wall surface 22 is a surface forming an obtuse angle with the 2 nd surface 11b of the headband 10. As will be described later, the slider 30 is engaged with the proximal end upright surface 21 during use of the swimming goggles 1, thereby preventing the headband 10 from loosening.

The 1 st end 10a has a pair of limit protrusions (stoppers) 14a, 14b erected between the tip 12 and the engagement region 13. The restricting convex portions 14a, 14b are used to position the slider 30 with respect to the headband 10, and the restricting convex portion 14a is located on the 1 st surface 11a side and the restricting convex portion 14b is located on the 2 nd surface 11b side. The dimension of the gap between the restricting convex portions 14a and 14b in the extending direction a can be set in consideration of the thickness of the slider 30 around the 2 nd opening 32 described later.

The restricting convex portion 14a has a gentle slope surface 23 smoothly rising from the 1 st surface 11a of the headband 10 and an upright surface 24 perpendicularly protruding and intersecting the gentle slope surface 23, and the restricting convex portion 14b has a gentle slope surface 23 smoothly rising from the 2 nd surface 11b of the headband 10 and an upright surface 24 perpendicularly protruding and intersecting the gentle slope surface 23. The upright surfaces 24 of the regulating projections 14a, 14b are opposed to each other in the front-rear direction Z.

The thickness dimensions W1, W2 of the regulating projections 14a, 14b are such that the regulating projections 14a can pass through the 2 nd opening 32 and can engage the slider 30 by elastically deforming when the slider 30 is attached to the headband 10 or the slider 30 is detached from the headband 10 and the 1 st end 10a is inserted through the 2 nd opening 32 of the slider 30. The thickness dimensions W1, W2 of the regulating projections 14a, 14b can be determined by considering the modulus of elasticity of the elastic material constituting the headband 10, the shapes of the regulating projections 14a, 14b, and the shape of the periphery of the 2 nd opening 32 of the slider 30.

Referring again to fig. 1, the 1 st end portion 10a of the headband 10 has an inner portion 51 located on the inner side in the width direction X and an outer portion 52 located on the outer side in the width direction X, which are opposed to each other in the width direction X.

In the outer portion 52 of the 1 st end portion 10a, a region located between the upright surface 24 of the regulating protrusion 14a of the 1 st surface 11a and the distal end 12 of the band member 11 in the extending direction a functions as a tab 19 for the wearer to grip with the fingers when adjusting the length of the headband 10. Since the movement of the outer portion 52 in the front-rear direction Z is restricted by the restricting convex portions 14a, 14b, the length of the tab portion 19 in the extending direction a does not change after the slider 30 is attached to the headband 10. In order to prevent the situation where the tab 19 shakes during use of the swimming goggles 1, the length of the tab 19 is preferably shortened, and is preferably set to 2cm to 4cm, for example. It is also preferable to increase the rigidity of the tab portion 19 by increasing the gentle slope 23 of the regulating protrusion 14a in the extending direction a.

< slider >

Referring to fig. 3(a) and 3(b), for convenience of explanation, the slider 30 is disposed so that both side edges thereof extend in the width direction X of the swimming goggles 1 of fig. 1, and includes: an inner end portion 30a and an outer end portion 30b that are opposed to each other in the width direction X and extend in the up-down direction Y; a partition wall portion 30c located between the inner end portion 30a and the outer end portion 30 b; a 1 st opening (inner opening) 31 formed by division between the inner end portion 30a and the partition wall portion 30 c; and a 2 nd opening (outside opening) 32 that is defined between the outer end portion 30b and the partition wall portion 30 c.

The partition wall portion 30c has a proximal edge 41 located in the vicinity of the 2 nd opening 32, and the inner end portion 30a has a distal edge 42 located farther from the 2 nd opening 32 than the proximal edge 41. The distal edge 42 has an engagement projection 43 that projects toward the proximal edge 41 and can be engaged with the engagement region 13 of the 1 st end portion 10a of the headband 10. The narrowest portion 48 of the opening 1, which is the narrowest in width, is located between the catch projection 43 and the proximal edge 41.

The engaging projection 43 of the distal edge 42 has a vertical surface 45 and an inclined surface 46 connected to the vertical surface 45. Referring to fig. 3(a), in a plan view of the slider 30, a vertical surface 45 of the engaging projection 43 of the present embodiment has a rectangular shape.

The dimension D1 in the width direction X of the narrowest portion 48 is preferably such a size that the engagement region 13 of the 1 st end 10a can be inserted through the inner opening 31, and for example, the dimension D1 in the width direction X of the narrowest portion 48 may be the same as the thickness of the band member 11 or slightly larger than the thickness of the band member 11, or the dimension D1 in the width direction X of the narrowest portion 48 may be the same as the thickness of the 1 st end 10a (inner portion 51) or slightly smaller than the thickness of the 1 st end 10a (inner portion 51). With this configuration, when the headband 10 is replaced, the engagement region 13 can be smoothly inserted into the 1 st opening 31.

The height dimension (dimension in the width direction X) and the width dimension (dimension in the vertical direction Y) of the vertical surface 45 of the engaging projection 43 are not particularly limited, but in order to reliably engage the engaging projection 43 with the recess 16 disposed in the engaging region 13 of the 1 st end portion 10a, for example, the width dimension of the vertical surface 45 may be 50% to 90% of the width dimension of the recess 16, and the height dimension of the vertical surface 45 may be 80% to 100% of the depth of the recess 16.

Referring to fig. 3(b), in the slider 30, in a cross section in the thickness direction including the cross sections of the 1 st opening 31 and the 2 nd opening 32, the 1 st opening 31 is shifted in position forward with respect to the 2 nd opening 32. The 1 st opening 31 has a virtual center line K1 that bisects the dimension in the width direction X.

Corners of the inner end portion 30a and the outer end portion 30b of the slider 30 and the partition wall portion 30c are not sharp but have a curved shape. By providing the curved corners of the respective portions 30a to 30c, the headband 10 and/or the slider 30 can be prevented from being damaged even if the headband 10 slides in contact with each other. Further, since the slider 30 is streamlined as a whole, and the front surfaces of the inner end portion 30a and the outer end portion 30b have curved surfaces extending inward and outward in the width direction X as going rearward, it is possible to suppress the occurrence of turbulence between the headband 10 and the slider 30 in water.

Referring to fig. 1 to 5(a), 5(b), and 5(c), in a state where the slider 30 is attached to the headband 10, the inner portion 51 of the 1 st end portion 10a is inserted through the 1 st opening 31 of the slider 30, and the outer portion 52 of the 1 st end portion 10a is inserted through the 2 nd opening 32. The movement of the outer portion 52 in the front-rear direction Z is restricted by the restricting convex portions 14a, 14b being positioned in front of and behind the outer portion 52 of the slider 30, and the slider 30 is detachably attached to the headband 10. By restricting the movement of the outer portion 52 in this way, the length of the tab portion 19 does not change, and by reducing the length of the tab portion 19 in advance while it can be grasped, the rattling of the wearer can be suppressed. Since the slider 30 is detachably attached to the headband 10, the slider 30 and/or the headband 10 can be easily replaced when used in a deteriorated state or the like.

The recess 16 of the engagement region 13 located in the inner portion 51 of the 1 st end 10a and the engagement projection 43 of the 1 st opening 31 are engaged with and disengaged from each other. In the disengaged state, the inner end portion 30a of the slider 30 can be slid in the front-rear direction Z with respect to the inner portion 51. When the slider 30 moves forward, the inner peripheral dimension L1 of the headband 10 increases, and the tightening force to the head can be reduced, while when the slider 30 moves backward, the inner peripheral dimension L1 of the headband 10 decreases, and the tightening force to the head can be increased.

Referring to fig. 4(a), the slider 30 is in a state of standing up with respect to the headband 10, and a virtual center line K2, which bisects the dimension in the width direction X of the inner portion 51 of the 1 st end portion 10a, which passes through the 1 st opening 31 of the slider 30, is in parallel with the virtual center line K1. In this state, the slider 30 can be slid forward and backward while elastically deforming the inner portion 51 at the narrowest portion 48.

On the other hand, referring to fig. 4(b), in a state where the slider 30 is rotated and tilted with respect to the 1 st end portion 10a, the virtual center line K1 and the virtual center line K2 intersect with each other. In this state, since the 1 st opening 31 is located at a position intersecting the inner side portion 51 extending in the front-rear direction Z, the dimension D2 in the width direction B of the narrowest portion 48 is smaller than the dimension D1 in the width direction B of the narrowest portion 48 in a state where the slider 30 stands up with respect to the headband 10, as shown in fig. 4 (a). As a result, the narrowest portion 48 is caught by the inner portion 51, that is, the recess 16 is pressed by the engaging projection 43 against the proximal edge 41 to be engaged more deeply, and the movement of the slider 30 in the front-rear direction Z is completely locked. This prevents the headband 10 from loosening against the will of the wearer when the swimming goggles 1 are worn.

When the swimming goggles 1 are not in use, no tension is applied to the headband 10. At this time, in the 1 st opening 31, the engaging projection 43 of the slider 30 enters the recess 16 of the 1 st end 10a of the headband 10 shallowly, and the movement thereof is hindered. That is, even when the swimming goggles 1 are not worn, the headband 10 of the present embodiment is in a state where the engaging protrusions 43 of the slider 30 enter the concave portions 16.

However, since no tension is applied to the headband 10, the slider 30 is in a state of standing up with respect to the headband 10 and a state in which the movement thereof is not completely locked. Therefore, when the wearer holds the slider 30 with one hand and pulls the inner portion 51 of the 1 st end 10a rearward with the other hand, the concave portion 16 can be disengaged from the engaging projection 43 and the inner portion 51 can be moved rearward. Thus, the inner circumferential dimension L1 of the headband 10 can be adjusted to some extent in accordance with the size of the head of the wearer before wearing the headband, or can be adjusted to be easily carried.

Since the slider 30 is integrally formed, the manufacturing cost can be suppressed to be lower than that in the case where two or more members are combined.

Action of slider in increasing tightening force of headband

Next, the operation of the slider 30 and the 1 st end 10a when the tightening force of the headband 10 is increased in a state where the swimming goggles 1 are worn will be described with reference to fig. 5(a) and 5 (b).

Fig. 5(a) is a cross-sectional view taken along line v (a) -v (a) of fig. 1, fig. 5(b) is a view similar to fig. 4(a) in a state where the tab portion 19 is pulled rearward, and fig. 5(c) is a view similar to fig. 4(b) in a state where the finger 9 is released from the tab portion 19. When the tightening force of the headband 10 is increased, the tab portion 19 is pulled rearward (in the direction indicated by the arrow in the figure), and the inner circumferential dimension L1 of the headband 10 is decreased.

Referring to fig. 5(a), as described above, in the worn state of the swimming goggles 1, the slider 30 is in a state of being tilted as shown in fig. 4(b), and the movement thereof is prevented. Referring to fig. 5(b), when the wearer pulls the tab portion 19 of the headband 10 backward with the fingers 9 under a pulling force F1 from this state, a force to rotate the slider 30 acts in the direction of the arrow, and the slider 30 is in an upright state.

When the wearer further pulls the tab 19 rearward, the engaging projection 43 of the slider 30 is completely disengaged from the recess 16, and the inner end 30a slides rearward, so that the slider 30 as a whole automatically moves rearward. As a result, the inner peripheral dimension L1 of the headband 10 becomes smaller, and the tightening force of the headband 10 becomes larger. Referring to fig. 5(c), when the finger 9 is released from the tab portion 19 when the tab portion 19 is pulled and the desired tightening force is reached, the slider 30 stops moving and is automatically tilted with respect to the headband 10, and the engaging projection 43 of the slider 30 is again engaged deeply with the concave portion 16, and the movement in the front-rear direction is completely locked.

Action of slider in reducing tightening force of headband

Next, the operation of the slider 30 and the 1 st end 10a when the tightening force of the headband 10 is reduced in a state where the swimming goggles 1 are worn on the head will be described with reference to fig. 6(a) to 6 (c). Fig. 6(a) is a cross-sectional view similar to fig. 5(a) showing a state where the slider 30 is gripped by the finger 9, fig. 6(b) is a view similar to fig. 5(b) showing a state where the slider 30 is raised by the finger 9, and fig. 6(c) is a view similar to fig. 5(c) showing a state where the finger 9 is released from the slider 30.

Referring to fig. 6(a) and 6(b), when the tightening force of the headband 10 according to the present embodiment is reduced, first, the slider 30, which is tilted with respect to the headband 10 during wearing and in which the movement in the front-rear direction Z is completely locked, is gripped by the fingers 9. Next, the slider 30 is rotated in the direction of the arrow by applying a force to the slider 30 with the fingers 9, and the locking of the movement in the front-rear direction Z is released in a state where the slider 30 stands up with respect to the headband 10. Thus, the slider 30 can be moved forward without requiring a relatively large force.

Referring to fig. 6(c), when the inner peripheral dimension L1 of the headband 10 is increased while the slider 30 is moved forward and the finger 9 is released from the slider 30 when the tightening force reaches a desired level, the slider 30 automatically becomes inclined by the rearward tension applied to the inner portion 51, and the movement of the slider 30 in the forward-backward direction Z is completely locked again, and the desired tightening force of the headband 10 is maintained.

Fig. 7(a) and 7(b) show a method of reducing the tightening force of the headband 10, which is different from the method shown in fig. 6(a) to 6(c), fig. 7(a) is the same as fig. 6(a) showing a state before the tab portion is folded forward, and fig. 7(b) is the same as fig. 6(a) showing a state in which the tab portion is folded forward and the slider is moved forward.

Referring to fig. 7(a) and 7(b), in the worn state, the wearer holds the tab 19 with the fingers and pulls it forward, so that the tab 19 is separated from the inner portion 51 in the direction indicated by the arrow, and the slider 30 is in a state of standing up with respect to the headband 10. When the tab portion 19 is further extended forward in this state, the inner end portion 30a slides forward, and the slider 30 can be moved forward without a relatively large force. When the finger 9 is released from the flap 19 when the tightening force of the headband 10 is increased to a desired level by increasing the inner peripheral dimension L1 of the headband 10, the flap 19 returns to the original state, and the slider 30 automatically tilts by the rearward tensile force acting on the inner portion 51. Thereby, the movement of the slider 30 in the front-rear direction Z is completely locked again, maintaining the desired tightening force of the headband 10.

As is apparent from the above description, in the swimming goggles 1 according to the present embodiment, the headband 10 can be tightened or loosened with respect to the head only by an operation of pulling the tab portion 19 of the headband 10 in either the forward or backward direction, and therefore, the swimming goggles 1 capable of adjusting the tension of the headband 10 by a simple operation are provided. As described above, the swimming goggles 1 according to the present embodiment are configured such that the engaging protrusions 43 of the slider 30 are in a shallow state in the recessed portions 16 of the headband 10 not only when the swimming goggles 1 are worn but also when the swimming goggles 1 are not worn. Therefore, even when the headband 10 is repeatedly extended and retracted, the engagement projection 43 of the slider 30 can be prevented from erroneously crossing the concave portion 16 of the headband 10.

< example >

Since the basic configuration of the swimming goggles 1 of each embodiment is the same as that shown in fig. 1 to 7(a) and 7(b), only the difference will be described.

Fig. 8(a) is a view similar to fig. 5(b) of another example of the swimming goggles 1, fig. 8(b) is a view similar to fig. 5(b) of another example of the other example, and fig. 8(c) is an enlarged perspective view of the engaging region 13 of the another example of the other example.

Referring to fig. 8(a), in the headband 10 according to the present embodiment, the regulating protrusion 14a of the 1 st surface 11a is located on the side of the engagement region 13, the regulating protrusion 14b of the 2 nd surface 11b is located on the side of the distal end 12, and the regulating protrusion 14a is located on the front side of the regulating protrusion 14b in the state where the headband 10 is locked to the slider 30. Even in this state, the headband 10 can be stably and detachably engaged with the slider 30 by the regulating projections 14a and 14 b.

Referring to fig. 8(b), in the headband 10 of the present embodiment, the pair of convex restricting portions 14a and 14c facing each other in the front-rear direction Z are located on the 1 st surface 11a, the convex restricting portions 14b and 14d facing each other in the front-rear direction Z are disposed on the 2 nd surface 11b, and the slider 30 is located between the convex restricting portions 14a and 14c and between the convex restricting portions 14b and 14d and is locked. In this manner, the headband 10 has 4 regulating projections 14a to 14d, and the slider 30 regulates the movement of the outer end 30 b. Further, two restricting convex portions may be provided upright on one of the 1 st surface 11a and the 2 nd surface 11b, and one restricting convex portion may be provided upright on the other surface, but not shown.

Referring to fig. 8(c), in the present embodiment, a plurality of convex portions 66 are arranged in the engagement region 13 of the headband 10 at intervals in the extending direction a, instead of the plurality of concave portions 16. The slider 30 is not provided with the engaging projection 43 of the 1 st opening 31, but is not shown. When the headband 10 is inserted into the 1 st opening 31, the plurality of protrusions 66 of the engagement region 13 are locked to the distal edge 42 of the 1 st opening 31, thereby preventing the headband 10 from moving.

The present invention has been described based on the embodiments, but the present invention is not limited to the embodiments, and can be implemented in various modifications. For example, at least only the 1 st end portion 10a of the 1 st end portion 10a and the 2 nd end portion 10b of the headband 10 may be detachably engaged with the slider 30 and the slider 30 may not be engaged with the 2 nd end portion 10b, or the slider 30 may be detachably engaged. Further, the engaging region 13 of the headband 10 is described as an example of a structure in which the concave portions 16 are repeatedly arranged along the extending direction a, but a structure in which the convex portions are repeatedly arranged along the extending direction a of the headband 10 may be adopted instead. Furthermore, the headband 10 is not limited to use with swimming goggles, but may be used with underwater masks.

Further, although the case where the thickness direction cross-sectional shape of the slider 30 is an ellipse has been described as an example, the thickness direction cross-sectional shape of the slider 30 may be replaced with a flat plate shape having a gentle circular arc shape and a gentle curved japanese hiragana "く".

Claims (4)

1. Swimming goggles having a front-rear direction, including a goggle main body, a headband coupled to a side of the goggle main body, and a slider for adjusting a length of the headband, the swimming goggles being characterized in that,

at least one of both end portions of the headband in the extending direction has an engaging region located at a position spaced apart from a distal end, and a pair of restricting projections provided upright between the distal end and the engaging region and opposed to each other in the extending direction,

the slider is detachably attached to the headband and has a 1 st opening and a 2 nd opening through which the headband can pass,

the tip of the one end portion is folded back after passing through the 1 st opening and passes through the 2 nd opening, a portion of the slider on the 2 nd opening side is positioned between the pair of regulating projections to regulate the movement in the front-rear direction, while the portion on the 1 st opening side is movable in the front-rear direction in a state where the slider is standing up with respect to the headband, and the engagement region is engaged with an opening edge of the 1 st opening to prevent the movement in the front-rear direction in a state where the slider is tilted with respect to the headband.

2. Swimming goggles according to claim 1, wherein,

the engaging region is a region having a shape in which irregularities are repeated in the extending direction.

3. Swimming goggles according to claim 1 or 2,

the 1 st opening of the slider has a proximal end edge located in the vicinity of the 2 nd opening in a direction from the 1 st opening toward the 2 nd opening, and a distal end edge located farther from the 2 nd opening than the proximal end edge,

the distal end edge has an engagement projection that projects in a direction toward the inside of the 1 st opening and is capable of engaging with the engagement region.

4. Swimming goggles according to any one of claims 1 to 3, wherein,

in a thickness direction cross section of the slider, the 1 st opening is offset to a front position with respect to the 2 nd opening.

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