Fastener engagement member and fastener

Abstract

The utility model provides a kind of fastener's clamping piece and fastener, with good reliability and service life.The fastener's clamping piece includes: seat portion;Two buckles portion opposite each other, wherein each buckle portion includes clamping block and elastic arm, clamping block is connected to seat portion via elastic arm respectively;And a elastic reset portion, between two buckle portion, and for connecting the clamping block of two buckle portion, the thickness of elastic reset portion gradually reduces from the center of elastic reset portion to the direction of the end of elastic reset portion and then gradually increases.

Description

Technical Field

[0001] This utility model relates to a fastener engagement component and a fastener. Background Technology

[0002] Buckles are a very common tool in daily life, widely used in backpacks, protective gear, clothing, belts, and collars, allowing for the quick and easy connection or disconnection of two straps. Specifically, a buckle typically consists of a locking base and a locking element. The locking base has locking holes, while the locking element has a snap-fit ​​part, allowing the locking element to be secured to the locking base by snapping into the locking holes.

[0003] However, after prolonged use, the unlocking strength between the locking base and the locking parts of the buckle may weaken, making it easy to unlock and causing inconvenience in use. Utility Model Content

[0004] This utility model provides a fastener engagement component and a fastener, which have good reliability and service life.

[0005] The present invention relates to a fastener engagement component, which includes a base, two opposing latching portions, and an elastic reset portion. Each latching portion includes a latching block and a spring arm. Each latching block is connected to the base via the spring arm. The elastic reset portion is located between the two latching portions and is used to connect the latching blocks of the two latching portions. The thickness of the elastic reset portion gradually decreases and then gradually increases from the center of the elastic reset portion toward its end.

[0006] The fastener of this utility model includes a locking base and the aforementioned locking member. The locking base includes a body and a slot, wherein two opposing locking holes are formed on the body. The locking member is detachably inserted into the slot of the locking base, and each latching part of the locking member is detachably engaged in each locking hole of the locking base.

[0007] In one embodiment of the present invention, the card block has an inwardly recessed groove on one side in the thickness direction, and the groove is located in the center of the card block.

[0008] In one embodiment of the present invention, each of the above-mentioned latching parts further includes a rib, the ribs of each latching part facing each other on the inner side of the spring arm, and the ribs extending from the seat to the latching block.

[0009] In one embodiment of this utility model, the thickness of the rib is less than the thickness of the spring arm.

[0010] In one embodiment of this utility model, the thickness of the elastic reset part is less than the thickness of the spring arm and / or the locking block.

[0011] In one embodiment of the present invention, the above-mentioned elastic reset part is a U-shaped structure, including a central part, two connecting arms and two ends respectively connected to the two locking blocks, wherein each connecting arm is located between the central part and each end, and is used to connect the central part and each end.

[0012] In one embodiment of this utility model, the minimum distance between the two connecting arms is less than the width dimension of the central portion.

[0013] In one embodiment of the present invention, the connection between the seat and the buckle is formed at a corner, and the corner is an R-shaped chamfer.

[0014] In one embodiment of this utility model, the minimum distance between the two connecting arms is greater than the minimum distance between the central part and the seat.

[0015] Based on the above, the fastener and locking component of this utility model, through the design of the extension of the length and the variation of the thickness of the elastic reset part between the two locking parts, can transfer stress from one side of the locking component to the other side, thereby dispersing the stress and making its strength less prone to decline.

[0016] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a fastener according to an embodiment of the present utility model;

[0018] Figure 2 This is a perspective view of the engaging base of a fastener according to an embodiment of the present utility model;

[0019] Figure 3A This is a perspective view of a fastener engagement component according to an embodiment of the present utility model;

[0020] Figure 3B yes Figure 3A A front view of the snap-fit ​​component;

[0021] Figure 3C yes Figure 3A A rear view diagram of the card assembly;

[0022] Figure 3D yes Figure 3A A cross-sectional schematic diagram of the snap-fit ​​component along line AA.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100: Card assembly

[0025] 111, 214: Mounting holes for belt body

[0026] 110: Seat

[0027] 120: Buckle section

[0028] 121: Card Block

[0029] 121C: Groove

[0030] 122: Spinning Arm

[0031] 123: Ribs

[0032] 130: Elastic reset part

[0033] 131: Central Department

[0034] 132: Connecting arm

[0035] 133:End

[0036] 140: Corner

[0037] 200: Fasteners

[0038] 210: Locking base

[0039] 211: Ontology Department

[0040] 212: Slot

[0041] 213: Engagement Hole

[0042] 215: Insertion Hole

[0043] AA: Section line

[0044] D1: Width direction

[0045] D2: Thickness direction. Detailed Implementation

[0046] Figure 1 This is a schematic diagram of a fastener according to an embodiment of the present utility model. Figure 2 This is a perspective view of the locking base of a fastener according to an embodiment of the present utility model. Figure 3A This is a perspective view of a fastener engagement component according to an embodiment of the present utility model. Figure 3B yes Figure 3A A front view of the snap-fit ​​component. Figure 3C yes Figure 3A A rear view diagram of the card assembly. Figure 3D yes Figure 3A A cross-sectional view of the engaging component along line AA. Please refer to... Figure 1In this embodiment, the fastener 200 includes an engaging base 210 and an engaging member 100. For example, the fastener 200 may be a type of fastener that can detachably connect two straps.

[0047] Specifically, such as Figure 2 As shown, in this embodiment, the engaging base 210 includes a body portion 211 and a slot 212. The body portion 211 has two opposing engaging holes 213, a strap mounting hole 214, and an insertion hole 215 for the slot 212. The strap mounting hole 214 of the engaging base 210 is formed at the first end of the body portion 211 for mounting a strap. The insertion hole 215 of the slot 212 is located at the second end opposite to the strap mounting hole 214. The two opposing engaging holes 213 are located between the strap mounting hole 214 and the insertion hole 215 of the slot 212, and are respectively located on two sides of the body portion 211 connecting the first and second ends.

[0048] On the other hand, such as Figure 1 and Figures 3A to 3D As shown, in this embodiment, the engaging member 100 includes a base portion 110, two opposing latching portions 120, and an elastically resetting portion 130. Further, as... Figures 3A to 3D As shown, in this embodiment, the seat portion 110 of the engaging member 100 also has a belt mounting hole 111 for mounting the belt. The connection between the seat portion 110 and the buckle portion 120 forms a corner portion 140, and the corner portion 140 is an R-shaped chamfer. The two buckle portions 120 are disposed on the seat portion 110 opposite to each other.

[0049] More specifically, such as Figures 3A to 3C As shown, in this embodiment, each latching portion 120 of the latching member 100 includes a latching block 121, a spring arm 122, and a rib 123. Each latching block 121 is connected to the seat portion 110 via the spring arm 122, and as shown... Figure 1 As shown, the latching block 121 of the latching part 120 is detachably engaged with the two engaging holes 213 of the engaging base 210. Furthermore, as... Figures 3A to 3C As shown, in this embodiment, the ribs 123 are located inside the spring arm 122 and face each other on the inner side of the spring arm 122. The ribs 123 extend from the seat 110 to the locking block 121, and the thickness of the ribs 123 is less than the thickness of the spring arm 122. Furthermore, in this embodiment, the thickness of the locking block 121 is not uniform; specifically, as shown... Figure 3C As shown, the latch 121 has an inwardly recessed groove 121C on one side in the thickness direction D2, and the groove 121C is located in the center of the latch 121. By configuring the groove 121C of the latch 121, shrinkage marks and deformation can be prevented in the relatively thick area of ​​the latch 121 in the latching part 120 due to shrinkage.

[0050] On the other hand, such as Figures 3A to 3C As shown, in this embodiment, the elastic reset part 130 is located between the two latching parts 120 and is used to connect the latching blocks 121 of the two latching parts 120. Furthermore, as... Figure 3D As shown, the thickness of the elastic reset portion 130 gradually decreases and then gradually increases from the center of the elastic reset portion 130 toward the end portion 133 of the elastic reset portion 130. Furthermore, the thickness of the elastic reset portion 130 is less than the thickness of the spring arm 122 and / or the locking block 121.

[0051] Furthermore, such as Figures 3A to 3C As shown, in this embodiment, the elastic reset part 130 has a U-shaped structure and includes a central part 131, two connecting arms 132, and two end parts 133 respectively connected to the two locking blocks 121. Each connecting arm 132 is located between the central part 131 and each end part 133, serving to connect the central part 131 and each end part 133. Furthermore, as... Figure 3A As shown, in this embodiment, the minimum distance between the two connecting arms 132 is less than the dimension of the central portion 131 in the width direction D1. That is, the connecting arms 132 are retracted into the engagement member 100 relative to the central portion 131.

[0052] In this way, as Figures 3A to 3D As shown, the engaging member 100 can form a structure with a resilient reset portion 130 of the longest possible length between the two snap-fit ​​portions 120, and its thickness design can prevent plastic deformation of the structure. More specifically, since stress tends to concentrate in the center of the resilient reset portion 130 of the engaging member 100, by making the center of the resilient reset portion 130 (i.e., the central portion 131) thicker, and by making the thickness of the resilient reset portion 130 gradually decrease and then gradually increase towards the end 133 of the resilient reset portion 130, a composite shape with a gradually changing thickness can be formed, thereby further dispersing stress and preventing plastic deformation and strength degradation. In this way, by extending the length of the resilient reset portion 130 and varying its thickness, stress can be transferred from one side of the engaging member 100 to the other side, thereby dispersing stress and making its strength less prone to degradation. In addition, increasing the thickness at the end 133 of the resilient reset portion 130 can also strengthen the connection strength of the connecting block 121.

[0053] On the other hand, the locking member 100, through the arrangement of the locking block 121, the spring arm 122, and the rib 123 of the locking part 120, can also disperse stress to avoid structural deformation. Furthermore, since the thickness of the rib 123 is less than the thickness of the spring arm 122, stress can be further dispersed to avoid structural deformation.

[0054] In the above configuration, in this embodiment, the engaging member 100 is detachably inserted into the slot 212 of the engaging base 210, and each latching portion 120 of the engaging member 100 is detachably engaged in each engaging hole 213 of the engaging base 210. Furthermore, when engaging the engaging member 100 and the engaging base 210 in this embodiment, the two latching blocks 121 of the two latching portions 120 can be pressed, allowing the two latching blocks 121 to come closer together and be inserted into the two engaging holes 213 of the engaging base 210. Then, by releasing the two latching blocks 121, the elastic reset portion 130 can provide elastic bias to the latching portions 120, so that the latching blocks 121 of the latching portions 120 are always in their natural position, thus keeping the engaging member 100 and the engaging base 210 in an engaged state.

[0055] On the other hand, when it is desired to release the latching state between the latching member 100 and the latching base 210, press the two latching blocks 121 of the two latching parts 120 so that the two latching blocks 121 can come closer to each other and disengage from the two latching holes 213 of the latching base 210, thereby releasing the latching state between the latching member 100 and the latching base 210 and allowing the latching member 100 to disengage from the latching base 210.

[0056] When the engaging member 100 and the engaging base 210 are in the engaged state (i.e., when the engaging block 121 of the engaging part 120 is not subjected to external force), the engaging block 121 of the engaging part 120 and the connecting arm 132 of the elastic reset part 130 are always in their natural positions, and the minimum distance between the two connecting arms 132 is the maximum distance. The minimum distance between the two connecting arms 132 mentioned here refers to the distance between the two connecting arms 132 in the width direction D1 from a frontal view, and the width direction D1 is orthogonal to the extension direction of the belt.

[0057] In addition, such as Figure 3A As shown, in this embodiment, the minimum distance between the two connecting arms 132 is greater than the minimum distance between the central portion 131 and the seat portion 110. Thus, in this embodiment, by setting the connecting arms 132 to the longest possible length, unlocking can be performed with less force. When an external force is applied to the latching block 121 of the latching portion 120, the latching block 121 moves inward from its natural position in the width direction D1, but a gap still exists between the central portion 131 of the elastic reset portion 130 and the seat portion 110. That is, when the latching member 100 is released from the latching base 210, the central portion 131 will hardly contact the seat portion 110, thus avoiding continuous application of excessive stress to the seat portion 110 and preventing damage.

[0058] Furthermore, even if the force applied to the latch block 121 of the latch part 120 is too strong, the movement of the elastic reset part 130 can be limited and stress can be dispersed by the contact between the central part 131 of the elastic reset part 130 and the seat part 110, so as to prevent plastic deformation and strength degradation.

[0059] In summary, the fastener and locking component of this utility model, through the design of the extension of the length and the variation of the thickness of the elastic reset part between the two locking parts, can transfer stress from one side of the locking component to the other side, thereby dispersing the stress and making its strength less prone to decay.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fastening element (100) for a fastener (200), characterized in that, include: Seat (110); Two opposing latching portions (120), each latching portion (120) including a latching block (121) and a spring arm (122), each latching block (121) being connected to the base portion (110) via the spring arm (122); and The elastic reset part (130) is located between the two snap-fit ​​parts (120) and is used to connect the snap-fit ​​parts (120) to the snap-fit ​​block (121). The thickness of the elastic reset part (130) gradually decreases and then increases from the center of the elastic reset part (130) toward the end (133) of the elastic reset part (130).

2. The engaging member (100) of the fastener (200) according to claim 1, characterized in that, The card block (121) has an inwardly recessed groove (121C) on one side in its thickness direction (D2), the groove (121C) being located in the center of the card block (121).

3. The engaging member (100) of the fastener (200) according to claim 1, characterized in that, Each of the latching portions (120) further includes a rib (123), the ribs (123) of each of the latching portions (120) facing each other on the inner side of the spring arm (122), the ribs (123) extending from the seat portion (110) to the latch block (121).

4. The engaging member (100) of the fastener (200) according to claim 3, characterized in that, The thickness of the rib (123) is less than the thickness of the spring arm (122).

5. The engaging member (100) of the fastener (200) according to claim 1, characterized in that, The thickness of the elastic reset part (130) is less than the thickness of the spring arm (122) and / or the locking block (121).

6. The engaging member (100) of the fastener (200) according to claim 1, characterized in that, The elastic reset part (130) has a U-shaped structure and includes a central part (131), two connecting arms (132) and two ends (133) respectively connected to the two locking blocks (121). Each connecting arm (132) is located between the central part (131) and each end (133) for connecting the central part (131) and each end (133).

7. The engaging member (100) of the fastener (200) according to claim 6, characterized in that, The minimum distance between the two connecting arms (132) is less than the dimension of the central part (131) in the width direction (D1).

8. The engaging member (100) of the fastener (200) according to claim 1, characterized in that, The connection between the seat (110) and the buckle (120) forms a corner (140), and the corner (140) is an R-shaped chamfer.

9. The engaging member (100) of the fastener (200) according to claim 6, characterized in that, The minimum distance between the two connecting arms (132) is greater than the minimum distance between the central part (131) and the seat part (110).

10. A fastener (200), comprising: The engaging base (210) includes a body (211) and a slot (212), characterized in that the body (211) has two opposing engaging holes (213): and The engaging member (100) as described in any one of claims 1 to 9 is detachably inserted into the slot (212) of the engaging base (210), and each of the latching portions (120) of the engaging member (100) is detachably engaged in each of the engaging holes (213) of the engaging base (210).

Images