JP5371735B2 - Underwater mask - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underwater mask, which is an improved conventional underwater mask, easy to attach a buckle on a mask body while eliminating a risk of the buckle to come off the mask body during use, and the like. <P>SOLUTION: At least a rear periphery section 19 of a skirt 13 is formed of elastically deformable soft elastic member, while a connecting part 20, which is made of elastically deformable soft elastic member and connected to the buckle 15, is formed on both sides of the mask body. The buckle 15 has a buckle body 25 made of rigid plastic material, and the connecting part 20 has a locking part 23 which is locked on the buckle body 25. The buckle body 25 includes a receiving part 32 communicating with a space portion 34 in the buckle body 25 and having a through-hole 31 smaller than the cross-section outline of the locking part 23 formed. The locking part 23 is inserted into the space portion 34 from the through-hole 31 while being elastically deformed. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an underwater mask, in particular, an underwater mask that can be easily attached to a mask body of a buckle and that does not easily come off during use.

  The underwater mask disclosed in Patent Document 1 includes a mask body including a lens, a lens frame, and a skirt extending rearward from the lens frame, buckles provided on both sides of the lens frame, and a tip portion of the buckle that is long. The buckle is provided with a rotation angle restricting means for adjusting the position of the strap.

JP 2004-136057 A

  According to the underwater mask of Patent Document 1, the position of the strap can be adjusted and the strap can be fixed at a desired position by using the buckle rotation angle regulating means. However, the rotation angle restricting means is composed of a spring member and a fixing member, which are formed separately from the mask main body and the strap, and has a larger number of parts than a general underwater mask. Although the position of the strap relative to the mask body can be adjusted by the rotation angle restricting means, all the connecting members are made of a hard plastic material. It is not flexible in the direction. Therefore, when the strap is pulled in the lateral direction of the mask body during carrying or use, the buckle may be detached from the mask body.

  An object of the present invention is to provide an underwater mask that is an improvement of a conventional underwater mask, that can be easily attached to the mask body, and that the buckle is not likely to come off from the mask body during use.

  As means for solving the above-mentioned problems, the present invention includes a front-rear direction, a lens, a lens frame, and a skirt having a rear peripheral edge that extends rearward from the peripheral edge of the lens frame and contacts the wearer's face. The present invention relates to an improvement of an underwater mask including a mask body including a buckle attached to both sides of the mask body, and a strap connected to the mask body via the buckle.

A feature of the present invention is that both sides of the mask body are made of an elastically deformable flexible elastic material, and a connecting portion connected to the buckle is formed. The buckle is made of a hard plastic material. The buckle body has a receiving part that communicates with the space of the buckle body and has a through hole smaller than the cross-sectional outer diameter of the connection part. Is inserted into the space portion through the through hole while elastically deforming, and the connecting portion is a locking portion located in the space portion of the buckle body and a base extending from the rear peripheral edge portion of the skirt. A first insertion hole through which the locking portion is inserted, and a second insertion hole having a narrow width compared to the first insertion hole. The locking portion of the upper and lower side edges of the base end portion Rino and concave portion is formed in a portion, the concave portion is fitted to the upper and lower edges of the through hole.

The present invention includes the following preferred embodiments in addition to the features described above.
(1) The rear peripheral edge portion of the skirt is formed of a flexible elastic material that can be elastically deformed, and the connecting portion extends rearward from the rear peripheral edge portion and is integrally formed therewith.
(2) The connecting portion includes a locking portion positioned in the space portion of the buckle body, and a base end portion extending from both side portions of the lens frame, and the through hole is the locking portion. A first insertion hole through which the first insertion hole is inserted, and a second insertion hole that is in communication with the first insertion hole and narrower than the first insertion hole, and the engagement of the upper and lower side edges of the base end portion. A concave portion is formed in a portion near the stop portion, and the concave portion is fitted to the upper and lower end edges of the through hole.
(3) The locking portion has first and second end portions, and at least one of the first and second end portions has a pointed shape.
(4) The through- hole has substantially the same shape as the cross-sectional shape of the locking portion.

  According to the underwater mask of the present invention, the connecting portion of the mask main body to which the buckle is connected is formed of a soft elastic member that can be elastically deformed, so that the connecting portion is flexible with respect to all directions of the mask main body. Even if the strap is pulled to the side or rear of the mask body, the buckle is not likely to come off the mask body. Further, since the buckle can be directly connected to the mask body without using other members, the connecting operation is easy.

The perspective view of the underwater mask in 1st Embodiment of this invention. II-II sectional view taken on the line of FIG. The partially enlarged view inside the buckle in the use condition seen from the inside. The side view of a mask main body. The top view of a buckle main body. The enlarged view of the receiving part of a buckle main body. (A)-(c) The figure which shows the process in which the latching | locking part of a connection part is inserted in the through-hole of a buckle main body. The perspective view of the underwater mask in 2nd Embodiment of this invention.

<First Embodiment>
1 is a perspective view of the underwater mask 10, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a partially enlarged view of the inside of the buckle 15 when used from the inside, and FIG. FIG. 5 is a plan view of the buckle body 25, and FIG. 6 is an enlarged view of the receiving portion 32 of the buckle body 25.

  An underwater mask 10 shown in a perspective view in FIG. 1 includes a longitudinal direction A, a lateral direction B perpendicular thereto, a longitudinal direction C perpendicular to the longitudinal direction A and the transverse direction B, and a lens frame 12 fitted with a lens 11. And a mask main body 14 having a skirt 13 extending rearward from the lens frame 12, buckles 15 provided on both sides of the lens frame 12, and tip portions 16a of the buckles 15 are hung so as to be adjustable in length. A strap 16.

  The lens 11 is formed from an inorganic or organic transparent plate, and the lens frame 12 is formed from a hard plastic material. The skirt 13 includes a nose cover portion 18 formed so as to protrude forward in a concave portion located in the central portion in the lateral direction B of the lens 11 and the lens frame 12, and an annular rear peripheral edge that abuts the wearer's face Part 19 and formed of a flexible elastic material such as rubber or plastic elastomer. Further, on both sides of the skirt 13, a connecting portion 20 is formed integrally with the rear peripheral edge portion 19 and connected to the buckle 15. The buckle 15 is made of a hard plastic material like the lens frame 12, and the strap 16 is made of a soft elastic material that is softer than or more than the skirt 13, and its inner surface has its length. A plurality of engaging teeth 17 arranged at equal intervals in the direction are formed.

  As shown in FIGS. 3 and 4, the connecting portion 20 of the skirt 13 includes a base portion 22 that extends rearward from the rear peripheral edge portion 19, and a locking portion 23 that is continuous with the base portion 22 and has a substantially trapezoidal rectangular shape. . The locking portion 23 is thicker than the base portion 22, and extends in the longitudinal direction A outside of the base portion 22. The first and second end portions 23 a and 23 b extend in the lateral direction B of the base portion 22. It has a side edge portion 23c that extends outward, an inclined portion 23d that extends rearward while inclining from the side edge portion 23c, and a planar rear end portion 23e that has substantially the same vertical dimension as the base portion 22. A recess 24 is formed between the base portion 22 and the locking portion 23. The receiving part 32 described later has a thickness of 2 to 5 mm, the locking part 23 has a thickness of about 3 to 10 mm, and the locking part 23 has a thickness of about 3 to 10 mm. In the case of about 3 mm, the rubber hardness is preferably 80 to 100 A, and in the case of about 10 mm, the rubber hardness is preferably about 20 to 30 A.

  In the present embodiment, the connecting portion 20 extends backward from both sides of the skirt 13, but may extend backward from both sides of the lens frame 12. In that case, the connecting portion 20 can be formed of a flexible elastic material that is elastically deformable separately from the lens frame 12 and the skirt 13.

  As shown in FIGS. 2, 3 and 5, the buckle 15 is open on the side (inner surface) facing the rear peripheral edge 19 of the skirt 13, and can be inserted into and removed from the buckle body 25 made of a hard plastic material. And an adjuster member 26 made of a soft or hard plastic material. The buckle body 25 has a pair of side plates 27 and 28 that are spaced apart from each other in the vertical direction A, a plate-like portion 29 positioned between the side plates 27 and 28, and a through hole 31 through which the locking portion 23 of the skirt 13 is inserted. A receiving portion 32 is formed, and a space portion 34 is defined therein. The front end portion 33 where the side plates 27, 28 and the plate-like portion 29 intersect with each other protrudes in a convex shape forward from the receiving portion 32. The space portion 34 is formed with a protruding portion 35 that protrudes in the width direction of the side plates 27 and 28 in the space portion 34, and between the rear end edges of the side plates 27 and 28, a rod-like shape that connects them. The shaft portion 36 is formed. A distal end portion 16a of the strap 16 is wound around the shaft portion 36 and fixed.

  The adjuster member 26 further extends rearward from the flat plate-like clamping portion 37 that contacts the plate-like portion 29 of the buckle body 25 from the outside, and the rear end edges of the side plates 27 and 28 of the buckle body 25, and a part thereof is bent. And a pair of spring portions that are connected to the holding portion 37 and the holding portion 38 and are positioned between the protruding wall 35 and the side plates 27 and 28. 39. A locking piece 40 extending rearward from the spring portion 39 is formed on the side facing the gripping portion 38, and the engaging teeth 17 of the strap 16 are locked to the locking piece 40. When adjusting the length of the strap 16 or removing the strap 16 from the buckle 15, the gripping portion 38 is lifted with a finger and the spring portion 39 is elastically deformed toward the plate-like portion 37 side of the buckle body 25, thereby The locking between the stop piece 40 and the engagement tooth 17 of the strap 16 can be released. Further, a locking projection 41 is formed on the inner surface of the tip of the clamping portion 37 of the adjuster member 26, and the locking projection 41 is formed in a rectangular opening 42 defined in the plate-shaped portion 29 of the buckle body 25. Is engaged.

  As shown in FIG. 6, the receiving portion 32 of the buckle body 25 is formed with a through hole 31 communicating with the space portion 34, and the through hole 31 follows the cross-sectional shape of the locking portion 23 of the connecting portion 20. The upper opening edge 31a having a substantially trapezoidal shape, the lower opening edge 31b that extends downward and continues to the upper opening edge 31a, and has a narrower shape than the upper opening edge 31a, the upper opening edge 31a, and the lower opening edge 31b And a first insertion hole 43 and a second insertion hole 44 respectively defined. The length of the through hole 31 is formed smaller than the length of the locking portion 23, and the first insertion hole 43 is formed smaller than the cross-sectional outline of the locking portion 23.

  In the underwater mask 10 having such a configuration, in the space portion 34 of the buckle 15, the locking portion 23 of the connecting portion 20 is located in the space portion 34 of the buckle body 25, and the first and second end portions 23 a and 23 b thereof are connected. Since the side edge portion 23c abuts the inner surface of the receiving portion 32 and the recess 24 of the base portion 22 is fitted to the upper end of the upper opening edge 31a and the lower end of the lower opening edge 31b, the buckle 15 Alternatively, even if the strap 16 is pulled rearward, the buckle 15 is not likely to come off from the underwater mask body 14. Further, as described above, the connecting portion 20 is formed of a relatively thin flexible elastic material and has a relatively high flexibility with respect to all the directions of the mask main body 14. 10 can be elastically deformed by bending in the horizontal direction B as well as in the vertical direction A. Therefore, even if a force for pulling or twisting the connecting portion 20 rearward and / or laterally acts on the connecting portion 20, there is no possibility that a part thereof is cut or broken.

  FIGS. 7A to 7C are views showing a process of inserting the locking portion 23 of the connecting portion 20 into the through hole 31 of the buckle body 25.

  As shown in FIG. 7A, first, the operator directs the second end 23b of the locking portion 23 toward the first insertion hole 43 of the through hole 31 of the buckle body 25 and pushes the first end 23a with a finger. The second end portion 23b is caused to enter the space portion 34 of the buckle body 25 through the first insertion hole 43 while being elastically deformed. At this time, since the upper opening edge 31a of the through hole 31 has a shape substantially the same as the cross-sectional shape of the locking portion 23 of the connecting portion 20, the outer peripheral surface of the locking portion 23, that is, the upper opening edge 31a, that is, Since the side edge portion 23c, the inclined portion 23d, and the rear end portion 23e can be inserted while being in sliding contact with each other, there is no possibility that the buckle 15 is attached to the mask body 14 in the wrong direction. In addition, since the inclined portion 23 d extends obliquely from the side edge portion 23 c, the tip of the second end portion 23 b has a pointed shape, so that the locking portion 23 is positioned with respect to the first insertion hole 43. Even if it is inserted obliquely, the insertion operation is easy. By inserting the locking portion 23 into the first insertion hole 43, the recess 24 of the base portion 22 is pulled toward the locking portion 23 and elastically deformed, and a part thereof is inserted into the second insertion hole 44. It becomes a state.

  Next, as shown in FIG. 7B, when the locking portion 23 is elastically deformed and further pushed toward the space portion 34 of the buckle 15, the concave portion 24 of the base portion 22 is inserted below the second insertion hole 44. The Further, by pushing the first end portion 23 a of the locking portion 23 with a finger toward the through hole 31, the first end portion 23 a also passes through the first insertion hole 43 and enters the space portion 34 of the buckle 15. As a result, the entire locking portion 23 is located in the space portion 34, the back surface of the locking portion 23 comes into contact with the inner surface of the receiving portion 32 of the buckle body 25, and the concave portion 24 of the base portion 22 is formed in the second insertion hole 44. It will be in the state fitted. Thus, by fitting the concave portion 24 of the base portion 22, the locking portion 23 is stably fixed in the space portion 34, and the buckle can be prevented from being twisted with respect to the mask main body 14. . Further, as described above, the first insertion hole 43 is smaller than the cross-sectional outline of the locking portion 23, and the opening dimension in the vertical direction A of the through hole 31 is smaller than the vertical dimension A of the locking portion 23. Therefore, even if the strap 16 is pulled rearward, the locking portion 23 does not come out of the through hole 31, and the fitting with the buckle 15 is released and the strap 16 does not come off the mask body 14.

  In the present embodiment, the through hole 31 of the buckle body 25 is substantially key-shaped, but can be inserted into the space 34 while elastically deforming the locking portion 23 of the connecting portion 20, and the locking portion 23 is not easy. As long as it does not come out from the through-hole 31, various shapes such as a circle and a square may be used. Further, the shape of the locking portion 23 can be freely designed according to the shape of the through hole 31. Further, according to the breaking strength of the locking portion 23, the through hole 31 is formed only from the first insertion hole 43 having an opening dimension smaller than the length dimension of the connecting portion 20, and the second insertion hole 44. It does not have to have.

Second Embodiment
FIG. 8 is a perspective view of the underwater mask 10 in the second embodiment of the present invention. The underwater mask 10 of the present embodiment has the same basic configuration as that of the first embodiment. However, in the present embodiment, the connecting portion 20 extends rearward from both side portions of the lens frame 12. ing. The connecting portion 20 is made of a flexible elastic material that can be elastically deformed, and the lens frame 12 is made of a soft or hard plastic material, and the connecting portion 20 is formed integrally with the lens frame 12. Alternatively, it may be a separate body and may be bonded to the lens frame 12 by an adhesive or welding.

DESCRIPTION OF SYMBOLS 10 Underwater mask 11 Lens 12 Lens frame 13 Skirt 14 Mask main body 15 Buckle 16 Strap 19 Back periphery part 20 Connection part 22 Base part 23 Locking part 23a Locking part 1st end part 23b Locking part 2nd end part 24 Recessed part 25 Buckle body 31 Through hole 32 Receiving portion 43 First insertion hole 44 Second insertion hole

Claims (5)

And front-back direction, a lens, and the lens frame, extending rearwardly from the periphery of the lens frame, a mask body comprising a skirt having a rear periphery in contact with the wearer's face, taken on both sides of the mask body and was a buckle, in water mask with a strap which is connected to the mask body through the buckle,
Both sides of the mask body are made of a flexible elastic material that can be elastically deformed, and a connecting portion that is connected to the buckle is formed.
The buckle has a buckle body made of a hard plastic material,
The buckle body includes a receiving portion that communicates with a space portion of the buckle body and has a through hole that is smaller than a cross-sectional outer diameter of the connection portion. Inserted into the space through the hole ,
The connecting portion has a locking portion located in the space portion of the buckle body and a base end portion extending from the rear peripheral edge portion of the skirt, and the through hole is inserted through the locking portion. The first insertion hole, the second insertion hole communicating with the first insertion hole and narrower than the first insertion hole, and the locking portion of the upper and lower side edges of the base end portion The underwater mask according to claim 1, wherein a concave portion is formed on a side portion, and the concave portion is fitted to upper and lower edges of the through hole.   The underwater mask according to claim 1, wherein the rear peripheral edge of the skirt is formed of a flexible elastic material that can be elastically deformed, and the connecting portion extends rearward from the rear peripheral edge and is integrally formed therewith. . A mask body comprising a front and rear direction, a lens, a lens frame, a skirt having a rear peripheral edge that extends rearward from the periphery of the lens frame and abuts against the wearer's face; An underwater mask having a formed buckle and a strap connected to the mask body through the buckle;
Both sides of the mask body are made of a flexible elastic material that can be elastically deformed, and a connecting portion that is connected to the buckle is formed.
The buckle has a buckle body made of a hard plastic material,
The buckle body includes a receiving portion that communicates with a space portion of the buckle body and has a through hole that is smaller than a cross-sectional outer diameter of the connection portion. Inserted into the space through the hole,
The connecting portion has a locking portion positioned in the space portion of the buckle body and a base end portion extending from both side portions of the lens frame, and the through hole is inserted through the locking portion. A first insertion hole that communicates with the first insertion hole and has a second insertion hole that is narrower than the first insertion hole, and is closer to the locking portion of the upper and lower side edges of the base end portion. The underwater mask is characterized in that a concave portion is formed in the portion, and the concave portion is fitted to the upper and lower end edges of the through hole. The said latching | locking part has a 1st and 2nd edge part, The at least any one edge part of the said 1st and 2nd edge part has a pointed tip shape in any one of Claims 1-3. Underwater mask. The underwater mask according to claim 1 , wherein the through hole has substantially the same shape as a cross-sectional shape of the locking portion.

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