CN101991247B - Fastening device - Google Patents

Abstract

The invention discloses a buckling device which is used for fixing a belt body. The buckling device comprises a first part, a second part and an elastic part. A material of the resilient portion has a shore hardness substantially between a10 and a 95. The elastic part is connected with the first part and the second part, so that the second part is pressed against the belt body, and the belt body is fixed.

Description

Fastening device

technical field

The invention relates to a fastening device; in particular, it relates to a fastening device using a highly flexible material as an elastic body.

Background technique

When carrying out various water activities, the user will wear a mask and a flipper, wherein the mask can be swimming goggles, diving goggles or other devices that cover the user's face contour. Generally speaking, both the mask and the fins use a fastening device and a belt body, so that the length of the belt body can be adjusted according to the user's body size. After the adjustment is completed, the belt body is fixed by the buckle device, and the belt body is tightly wrapped around the sleeve. on the user.

Referring to FIG. 1A to FIG. 1C together, a conventional fastening device 1 includes a body 11 , an engaging member 12 , a resilient member 13 , a first pivot 17 and a second pivot 16 . The engaging member 12 includes a resisting end 15 and an opposite end 14 . The opposite end 14 is in contact with the resilient member 13 , and the resisting end 15 is against a belt (not shown) bent around a pivot 16 . When the user lifts up the engaging member 12, the opposite end 14 rotates inward along the first pivot 17 against the resilient member 13 (that is, the engaging member 12 in FIG. The shape is changed, and the resilient member 13 thus produces a pre-compressed elastic restoring force. The catch end 15 tilts outwards to separate from the straps of the mask or fins. At this time, the length of the straps can be adjusted according to the body of the user, so that the mask or fins can be firmly and properly attached to the user. However, when the user exerts force on the opposite end 14 , the resilient member 13 is integrally formed with the body 11 and must have sufficient strength, resulting in insufficient flexibility of the material of the resilient member 13 itself. Therefore, the engaging member 12 cannot be sensitively moved outward by the user, causing the user to work hard when adjusting the belt body. Or, due to insufficient flexibility of the resilient member 13, material fatigue or fracture may occur after frequent and repeated use.

2A to 2C illustrate another conventional fastening device 2 . The fastening device 2 includes a main body 21 , an engaging part 22 and two pressing parts 24 . The body 21 includes a pivot 26 on which a strap (not shown) such as a mask or fins is adapted to be bent. The engaging member 22 includes an engaging protrusion 23 and a resisting end 25 . The two pressing parts 24 are arranged oppositely on both sides of the engaging member 22 along the axial direction of the pivot 26 (as shown in FIG. 2A and FIG. 2B ), and the resisting end 25 is arranged on the side of the engaging member 22 close to the pivot 26 , butt against a belt (not shown) bent around the pivot 26 . The engaging protrusion 23 of the engaging member 22 engages with a hole of the body 21 so that the engaging member 22 obtains a resilience. When the two pressing parts 24 receive an inward pressing force at the same time, the two sides of the engaging part 22 are pressed and arched outwards, and the gap between the resisting end 25 and the belt of the mask or fins increases. At this time, the length of the strap can be adjusted according to the body of the user, and the strap can be wrapped around the user so that the mask or fins can be comfortably attached to the user. When the user releases the pressing portion 24 , the engaging member 22 returns to its original position by the elastic force of the engaging protrusion 23 , and forces the pressing portion 24 to return to its original position. Similar to the above-mentioned buckling device 1, because the buckling protrusion 23 and the buckling part 22 are integrally formed, they must have sufficient strength and hardness to resist the belt body. Therefore, the hardness of the material of the engaging protrusion 23 itself is too high and does not have enough flexibility, so that the engaging member 22 cannot be sensitively pushed and arched by the user, and the user needs to press hard when adjusting the strap. . Furthermore, the engaging protrusion 23 of the existing buckling device 2 is prone to fatigue or breakage after frequent and repeated use, which will result in insufficient resisting force when resisting the belt. , the end 25 and the belt body cannot be firmly clamped, what's more, it will fall off during use, which will endanger the life safety of the user.

In view of this, it is an urgent problem to be solved in the industry to provide a fastening device, which can be controlled sensitively without consuming force, has a more reliable locking action, and is less prone to fatigue fractures.

Contents of the invention

The purpose of the present invention is to provide a fastening device which has the characteristics of simple assembly, sensitive control without labor consumption, more reliable locking action, and less prone to problems such as fatigue fracture.

To achieve the above purpose, the fastening device disclosed in the present invention is used for fixing a belt. The belt has a plurality of second protrusions. The fastening device includes a first part, a second part and an elastic part. Wherein, the elastic portion has a shore hardness substantially between A10 and A95, and is more flexible than the first portion. The elastic part connects the first part and the second part so that the second part is resisted by the belt body, thereby fixing the belt body.

In order to make the above purpose, technical features and advantages more comprehensible, preferred embodiments are described below in detail with the accompanying drawings.

Description of drawings

FIG. 1A is a schematic perspective view of a conventional fastening device;

Fig. 1B is a top view of a conventional fastening device;

Fig. 1C is a schematic cross-sectional view of a conventional fastening device along the cut plane line AA;

Fig. 2A is a schematic perspective view of another conventional fastening device;

Fig. 2B is a top view of another conventional fastening device;

Fig. 2C is a schematic cross-sectional view of another conventional fastening device along the cut surface line BB;

Fig. 3A is a three-dimensional schematic diagram of the fastening device according to the first embodiment of the present invention;

3B is a top view of the fastening device according to the first embodiment of the present invention;

3C is a schematic cross-sectional view of the fastening device according to the first embodiment of the present invention along the section line CC;

3D is an exploded view of the fastening device according to the first embodiment of the present invention;

FIG. 3E is a schematic perspective view of a fastening device used for a face mask according to the first embodiment of the present invention;

FIG. 3F is an exploded view of the fastening device used for a face mask according to the first embodiment of the present invention;

FIG. 3G is a three-dimensional schematic diagram of a fastening device used in a fin according to the first embodiment of the present invention;

Fig. 3H is an exploded view of the fastening device used in a fin according to the first embodiment of the present invention;

FIG. 4A is a schematic perspective view of a fastening device according to a second embodiment of the present invention;

Fig. 4B is a top view of the fastening device according to the second embodiment of the present invention;

Fig. 4C is a schematic cross-sectional view of the fastening device according to the second embodiment of the present invention along the cut surface line DD;

FIG. 4D is an exploded view of the fastening device according to the second embodiment of the present invention;

FIG. 4E is a schematic perspective view of a second embodiment of the fastening device used in a fin;

FIG. 4F is an exploded view of a fastening device used in a fin according to the second embodiment of the present invention;

FIG. 5A is a schematic perspective view of a fastening device according to a third embodiment of the present invention;

5B is a schematic cross-sectional view of the fastening device according to the third embodiment of the present invention; and

FIG. 5C is an exploded view of the fastening device according to the third embodiment of the present invention.

Description of main component symbols

1 buckle device 11 body

12 Fastening piece 13 Rebound piece

14 Opposite end 15 Resisting end

16 Second Pivot 17 First Pivot

2 buckle device 21 body

22 Fastening piece 23 Fastening protrusion

24 Pressing part 25 Resisting end

26 Pivot 3 Snap closure

31 Part 1 32 Part 2

321 First protruding part 322 Resisting end

323 Opposite end 33 Elastic part

35 First Pivot 36 Second Pivot

4 Fastening device 41 Part 1

42 Second part 421 First protrusion

422 Arrest end 423 Opposite end

43 Elastic part 45 First pivot

46 Second Pivot 47 Pressing Part

5 Snap closures 51 Part 1

513 Fastening hole 52 Part 2

521 First protrusion 522 Resisting end

523 opposite end 523a engagement protrusion

53 Elastic part 56 Second pivot

57 Press part 6 Belt body

61 second protrusion 8 mask

81 Skirt 9 Fins

90 side edge

Detailed ways

As shown in FIG. 3A to FIG. 3D , the fastening device 3 for fixing the strap 6 of the present invention includes a first part 31 , a second part 32 and an elastic part 33 . Wherein, the elastic portion 33 is softer than the first portion 31 and has a shore hardness substantially between A10 and A95, and an elastic coefficient of the elastic portion 33 is generally smaller than that of the first portion and substantially lower than 20Gpa . In other words, the elastic portion 33 is more flexible than the first portion 31 . Compared with the elastic recovery structures of various existing fastening devices, the elastic portion 33 is easier to deform and less prone to fatigue fracture. Wherein, the belt body 6 has a plurality of second protrusions 61 , and the second portion 32 includes at least one first protrusion 321 . The elastic part 33 connects the first part 31 and the second part 32 , and biases the second part 32 so that the first protruding part 321 abuts against the second protruding part 61 of the belt body 6 , thereby fixing the belt body 6 . Wherein, the material of the elastic part 33 is preferably selected from the group consisting of silica gel (silicone), thermoplastic elastomer (Thermoplastic Elastomer, TPE), polyvinyl chloride (Polyvinyl Chloride, PVC) and combinations thereof, and the first part 31 The material can be selected from polycarbonate (Polycarbonate, PC), alkylbenzene sulfonate (Alkylbenzene Sulfonate, ABS), polyoxymethylene (Polyoxymethylene, POM), polypropylene (Polypropylene, PP), thermoplastic elastomer ( Thermoplastic Elastomer, TPE) and its combination.

In detail, the fastening device 3 of the first embodiment of the present invention is shown in FIGS. 3A to 3D . The fastening device 3 further includes a first pivot 35 and a second pivot 36 . Wherein, the second pivot 36 is fixed to the first part 31, the belt body 6 is bent and wound on the second pivot axis 36, and the plurality of second protrusions 61 of the belt body 6 and the second pivot axis 36 are all parallel to the first part. Pivot 35 is provided. The second part 32 of the fastening device 3 has a resisting end 322 and an opposite end 323 , and at least one first protrusion 321 is disposed on the resisting end 322 of the second part 32 . The first part 31 , the second part 32 and the elastic part 33 are pivotally connected by the first pivot 35 , and the second part 32 and the elastic part 33 are suitable for rotating relative to the first part 31 . In this embodiment, the elastic portion 33 is preferably disposed between the first portion 31 and the second portion 32 . The opposite end 323 of the second portion 32 is biased outward by the elastic portion 33 , so that the first protruding portion 321 is adapted to rotate inwardly along the first pivot 35 to press against the second protruding portion 61 of the belt body 6 , Further, the belt body 6 is fixed.

Further referring to Fig. 3E to Fig. 3H, when a user intends to adjust the tightness of the belt 6 provided on the mask 8 or fins 9, etc., the opposite end 323 of the second part 32 can be continuously pressed to make it inward The elastic part 33 is squeezed, and an elastic restoring force is stored in the elastic part 33 at the same time. At this time, the latching end 322 rotates outward along the first pivot 35 to form a gap between the first protruding portion 321 and the second protruding portion 61, so as to release the first protruding portion 321 of the latching end 322 from the strap. The resistive relationship of the second protruding portion 61 on the body 6 enables the user to adjust the belt body 6 to a suitable length. When the user removes the pressure applied to the opposite end 323 of the second part 32, the elastic part 33 releases the previously stored elastic restoring force, and reversely applies an outward force to the opposite end 323 of the second part 32, The opposite end 323 is biased outwardly by force. At this time, the resisting end 322 opposite to the opposite end 323 rotates inward and resists the second protruding portion 61 of the belt body 6 . Because the elastic portion 33 of the present invention is made of a highly flexible soft material, the user can press the elastic portion 33 without spending a lot of effort, and the elastic portion 33 with high flexibility will not Failure issues such as fatigue or fracture.

4A to 4D illustrate the fastening device 4 according to the second embodiment of the present invention. Similar to the first embodiment, the fastening device 4 also includes a first part 41 , a second part 42 and an elastic part 43 . Like the first embodiment, wherein the elastic portion 43 has a shore hardness (shore hardness) substantially between A10 and A95, and an elastic coefficient of the elastic portion 43 is also smaller than the first portion 41 and lower than 20Gpa, that is, the elastic portion 43 has better flexibility than the first part 41 . The material of the elastic portion 43 of this embodiment is similar to that of the first embodiment and is selected from the group consisting of silicone, thermoplastic elastomer (TPE), polyvinyl chloride (PVC) and combinations thereof , and the material of the first part can be selected from polycarbonate (Polycarbonate, PC), alkylbenzene sulfonate (Alkylbenzene sulfonate, ABS), polyoxymethylene (Polyoxymethylene, POM), polypropylene (Polypropylene, PP), A group consisting of thermoplastic elastomers (Thermoplastic Elastomer, TPE) and their combinations.

The fastening device 4 of the second embodiment of the present invention is used to fix a belt 6 (as shown in FIG. 4E and FIG. 4F ). Please refer to FIG. 4C , FIG. 4E and FIG. 4F at the same time, the fastening device 4 further includes a first pivot 45 and a second pivot 46 . The second pivot 46 is fixed to the first part 41, the belt body 6 is bent around the second pivot axis 46, and the plurality of second protrusions 61 of the belt body 6 and the second pivot axis 46 are all parallel to the first pivot axis 45 settings. The second part 42 of the fastening device 4 has a resisting end 422 and an opposite end 423 , and at least one first protrusion 421 is disposed on the resisting end 422 of the second part 42 . The first part 41 , the second part 42 and the elastic part 43 are pivotally connected by the first pivot 45 , and the second part 42 and the elastic part 43 are suitable for rotating relative to the first part 41 . The fastening device 4 of the second embodiment is different from that of the first embodiment. The fastening device 4 of the second embodiment further includes two pressing parts 47, and the pressing parts 47 are arranged on the second axis along the axial direction of the second pivot 46. Two sides of the portion 42 are shown in FIG. 4A and FIG. 4B .

When the two pressing parts 47 respectively receive a pressing force and move inward, the pressing part 47 forces the resisting end 422 of the second part 42 to rotate outward along the first pivot 45. The gap between the first protruding portion 421 and the belt body 6 increases, so that the second protruding portion 61 of the belt body 6 can be released. At this point, the user can adjust the length of the belt 6 so that items such as the mask 8 (as shown in FIG. 4D ) or fins 9 (as shown in FIGS. 4E and 4F ) are properly fixed on the user. When the resisting end 422 rotates outward along the first pivot 45 and the first protruding portion 421 releases the second protruding portion 61, the opposite end 423 rotates inward along the first pivot 45 to squeeze the elastic portion 43 and stores an elastic force. Resilience. When the user releases the pressing force applied to the pressing part 47, the opposite end 423 is subjected to the restoring force of the elastic part 43 to rotate outward along the first pivot 45, so that the resisting end 422 rotates inward along the first pivot 45, Return to an initial position, and make the first protruding part 421 arranged on the end 422 engage with the second protruding part 61 of the belt body 6 again, and make the second protruding part 61 of the belt body 6 receive the first protruding part 61 The protruding portion 421 resists the button.

5A to 5C illustrate a fastening device 5 according to a third embodiment of the present invention. The fastening device 5 is similar to the first embodiment and the second embodiment, and also includes a first part 51 , a second part 52 and an elastic part 53 . The elastic portion 53 is disposed between the first portion 51 and the second portion 52 . Wherein, the elastic portion 53 also has a Shore hardness (shore hardness) substantially between A10 and A95, and an elastic coefficient of the elastic portion 53 is also smaller than the first portion and lower than 20Gpa, that is, the elastic portion 53 is relatively larger than the first portion. 51 has better flexibility. The material selection of the elastic portion 53 and the material of the first part 51 in this embodiment are also the same as those of the first embodiment and the second embodiment, and will not be repeated here.

Please refer to FIG. 5A to FIG. 5C again, the fastening device 5 according to the third embodiment of the present invention is used to fix the belt 6 having a plurality of second protrusions 61 . The fastening device 5 further includes a second pivot 56, the second pivot 56 is fixed to the first part 51, the belt body 6 is bent around the second pivot axis 56, and the plurality of second protrusions 61 of the belt body 6 It is arranged parallel to the second pivot 56 . The second part 52 of the fastening device 5 has a resisting end 522 and an opposite end 523 . The resisting end 522 of the second portion 52 has a first protruding portion 521 , and the opposite end 523 has an engaging protrusion 523 a. The first part 51 has an engaging hole 513 corresponding to the engaging protrusion 523 a , and the engaging protrusion 523 a at the opposite end 523 is adapted to be inserted into the engaging hole 513 to connect and fix the first part 51 and the second part 52 . The second part 52 and the first part 51 clamp the elastic part 53 together, and the elastic part 53 provides a height, so that the second part 52 is attached to the elastic part 53 and at the same time, the first protruding part 521 is suitable for resisting the belt body 6 The second protruding portion 61, thereby fixing the belt body 6.

The fastening device 5 further includes two pressing portions 57 disposed on two sides of the second portion 52 along the axial direction of the second pivot 56 , as shown in FIGS. 5A and 5C . When the two pressing parts 57 receive a pressing force and move inward, the pressing parts 57 press the elastic part 53 to force the elastic part 53 to deform and protrude outward. The protruding elastic part 53 further pushes up the resisting end 522 of the second part 52 outwards, so that the second part 52 is suitable for rotating outwards relative to the first part 51 along the engaging protrusion 523a (that is, the first part of FIG. 5B ). Two parts 52 rotate counterclockwise). As a result, the gap between the first protruding portion 521 disposed on the latching end 522 and the belt body 6 increases, so that the second protruding portion 61 of the belt body 6 can be released. At this time, the user can adjust the length of the belt body 6, so that items such as the mask 8 or the fins 9 are properly fixed on the user. And when the locking end 522 rotates outward along the engaging protrusion 523a, and the first protruding portion 521 releases the second protruding portion 61, the elastic portion 53 and the second portion 52 store an elastic restoring force due to the pressing force, Therefore, when the user releases the pressing force applied to the pressing part 57, the elastic part 53 and the engaging protrusion 523a release the elastic restoring force, and the protruding elastic part 53 returns to the original shape of the elastic part. The received abutment disappears, and the resisting end 522 rotates inwardly along the engaging protrusion 523a (that is, the second part 52 of FIG. A protruding portion 521 engages with the second protruding portion 61 of the belt body 6 again, and makes the second protruding portion 61 of the belt body 6 be resisted by the first protruding portion 421 .

The elastic parts 33, 43, 53 of the present invention can be integrally formed with soft parts of various articles. For example, as shown in FIG. 3E , FIG. 3F and FIG. 4D , the elastic portion 33 of the first embodiment of the present invention extends from a skirt portion 81 of the mask 8 and is integrally formed with the skirt portion 81 . The mask 8 may be swimming goggles, diving goggles or other devices covering the contours of the user's face, which is not limited here. As shown in FIG. 3G to FIG. 3H and FIG. 4E to FIG. 4F , the elastic portion 33 of the present invention can also extend from a side edge 90 disposed on the fin shoe 9 and be integrally formed therewith. Because the elastic parts 33, 43, 53 of the present invention are made of flexible materials, they can be easily integrally formed with soft parts of items such as masks or fins. Therefore, the fastening devices 3 , 4 , and 5 of the present invention do not need to use springs to increase the elastic recovery force of the fastening devices, and therefore do not require complicated assembly processes. Furthermore, because the elastic parts 33, 43, 53 are made of soft materials with high flexibility, there is no disadvantage of elastic fatigue or fatigue fracture, and the user can easily press the elastic parts 33, 43, 53 to manipulate the fastening devices 3, 4, 5. Thus, the fastening devices 3, 4, and 5 of the present invention avoid the use of a part of the hard element in the existing fastening devices 1 and 2 as an elastic storage structure, or the use of metal elastic elements such as springs, which cause fatigue, breakage and difficulty The problem of deformation can be extended to prolong the service life. It should be noted here that the above-mentioned installation positions of the elastic parts 33, 43, 53, the direction of deformation under force, the selection of materials, and the types of integrally formed articles are not intended to limit the scope of the present invention, and those skilled in the art can Push and other implementations having the same concept as the present invention.

The above-mentioned embodiments are only used to illustrate the implementation of the present invention and explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes or equivalence arrangements that can be easily accomplished by those skilled in the art belong to the scope of the present invention, and the protection scope of the present invention should be determined by the claims.

Claims (9)

1. A fastening device for fixing a belt, the fastening device comprising: first part; The second part is suitable for resisting the belt body, including the first protrusion, the resisting end and the opposite end; a first pivot, the second part is pivotally connected to the first part by the first pivot; and The elastic part is independent from the first part and the second part, is interposed between the first part and the second part, and is pivotally connected with the first pivot shaft. The elastic part has a shore hardness substantially It is made of a material between A10 and A95, and is integrally formed with the skirt of a mask or the side edge of a fin; Wherein, the belt body has a plurality of second protrusions, the first protrusions are arranged at the resisting end, and the opposite end is biased outward by the elastic portion, so that the first protrusions are adapted to move along the first pivot. The shaft rotates inward and resists the plurality of second protrusions of the belt. 2. The fastening device as claimed in claim 1, wherein the material of the elastic part is selected from the group consisting of silica gel (silicone), thermoplastic elastomer (Thermoplastic Elastomer, TPE), polyvinyl chloride (Polyvinyl Chloride, PVC) and combinations thereof composed of groups. 3. The fastening device as claimed in claim 1, wherein the fastening device further comprises two pressing parts, and when the two pressing parts move inward to force the locking end to rotate outward along the first pivot, the The first protruding part releases the plurality of second protruding parts of the belt body, and the opposite end rotates inwardly along the first pivot to press the elastic part. 4. The fastening device as claimed in claim 3, wherein the fastening device further comprises a second pivot fixed to the first part, and the strap is wrapped around the second pivot. 5. The fastening device according to claim 1, wherein the fastening device further comprises two pressing parts, when the two pressing parts move inward, the elastic part protrudes outward, and the locking end rotates outward , the first protrusion releases the plurality of second protrusions of the belt. 6 . The fastening device as claimed in claim 5 , wherein the opposite end is fixed to the first portion, and the first protruding portion is adapted to resist the plurality of second protruding portions of the strap. 7. The fastening device as claimed in claim 6, wherein the opposite end has an engaging protrusion, and the first portion has an engaging hole, and the engaging protrusion is engaged and fixed with the engaging hole. 8 . The fastening device as claimed in claim 7 , wherein the fastening device further comprises a second pivot fixed to the first part, and the strap is wrapped around the second pivot. 9. The fastening device as claimed in claim 1, wherein the first part is made of polycarbonate (Polycarbonate, PC), alkylbenzene sulfonate (Alkylbenzene sulfonate, ABS), polyoxymethylene (Polyoxymethylene, POM ), polypropylene (Polypropylene, PP), thermoplastic elastomer (Thermoplastic Elastomer, TPE) and a combination thereof.