TWI507610B - Coupling device - Google Patents

Description

Engagement mechanism

The present invention relates to a snap mechanism, and more particularly to a snap mechanism having a simplified structure.

The snap mechanism is widely used in various mechanical structures and electronic devices. However, the conventional engaging mechanism must be completed by using the elastic piece, the scissor foot, and the plastic hot melt material, and the mechanical parts are quite complicated, which is not only difficult to manufacture, but also increases the material cost.

The present invention relates to a snap mechanism having a simplified structure, which utilizes a simple material and a simplified structural configuration to achieve the purpose of the engagement.

According to the present invention, a snap mechanism is provided, including a hook module and a positioning module. The hook module includes a link, an elastic component, a hook portion and a guide block. The connecting rod is used to receive an external force. The elastic element is sleeved on the connecting rod, so that when the connecting rod receives the external force, the elastic element is compressed and provides a resilient force of the connecting rod, the hook portion has a first end and a second end, and the first end is connected with the connecting rod. The block connects the second end of the hook portion, and the guide block has a first slope. The positioning module includes a positioning portion, a first protrusion and a second protrusion. The positioning portion is configured to be engaged with the hook portion, and the first protruding block has There is a curved surface, and the second convex block has a second inclined surface. When the connecting rod receives the external force, the hook portion slides along the curved surface of the first convex block, and when the external force is eliminated, the first inclined surface of the guiding block is along the second second protruding block by the elastic force provided by the elastic member The slope slides until the hook portion bypasses the second projection to disengage from the positioning portion.

In order to provide a better understanding of the above and other aspects of the present invention, the following detailed description of the embodiments and the accompanying drawings

1‧‧‧Cordging mechanism

10‧‧‧ hook module

20‧‧‧ Positioning Module

101‧‧‧ linkage

102‧‧‧Connecting Department

103‧‧‧Flexible components

104‧‧‧K hook section

201‧‧‧ Positioning Department

202‧‧‧First bump

203‧‧‧second bump

1021‧‧‧ openings

1021-1‧‧‧Long side

1021-2‧‧‧ Short side

1022‧‧‧ lead angle

1041‧‧‧ first end

1042‧‧‧ second end

1043‧‧‧ Guide block

1044‧‧‧First bevel

1045‧‧‧ convex

1046‧‧‧Extension

1047‧‧‧Chamfering

2011‧‧‧ recess

2021‧‧‧ Surface

2031‧‧‧second slope

A, B‧‧‧

X, y, z‧‧‧ axis

FIG. 1 is a partial schematic view showing the engaging mechanism of the embodiment of the present invention in an xy plane.

2A and 2B are respectively partial schematic views of the hook module of the embodiment of the present invention in the xy plane and the yz plane.

FIG. 3 is a schematic diagram of the hook module of the embodiment of the present invention being engaged with the positioning module.

4A and 4B are schematic views showing the hook module of the embodiment of the present invention.

Fig. 4C is a perspective view showing a region surrounded by a broken line A in Fig. 4B of the present invention.

FIG. 5A is an exploded view of the hook module of the embodiment of the present invention.

5B and 5C are schematic views showing the structure of the B region and the C region in Fig. 5A, respectively.

Fig. 5D is a plan view showing the connecting portion of the embodiment of the present invention.

FIG. 1 is a partial schematic view showing the engaging mechanism 1 of the embodiment of the present invention in an xy plane. The engaging structure 1 includes a hook module 10 and a positioning module 20 . The hook module 10 includes a connecting rod 101, an elastic member 103 and a hook portion 104. The connecting rod 101 is for receiving an external force. The elastic member 103 is sleeved on the connecting rod 101, so that when the connecting rod 101 receives an external force, the elastic member 103 is compressed and provides an elastic force. The hook portion 104 has a first end 1041 and a second end 1042. The first end 1041 is connected to the connecting rod 101. The positioning module 20 includes a positioning portion 201, a first bump 202, and a second bump 203. The positioning portion 201, the first bump 202, and the second bump 203 are dispersedly disposed, and the shape of the dispersed position can be, for example, It is an inverted triangle. The positioning portion 201 is configured to engage with the hook portion 104. The first bump 202 has a curved surface 2021, the second bump 203 has a second inclined surface 2031, and the height of the second bump 203 in the Z-axis direction is smaller than the height of the positioning portion 201 and the first bump 202 in the Z-axis direction. . In some embodiments, the engaging structure 1 further includes a connecting portion 102 disposed between the connecting rod 101 and the hook portion 104.

2A and 2B are respectively partial schematic views of the hook module 10 of the embodiment of the present invention in the xy plane and the yz plane. As shown in FIG. 2B, the hook module 10 has a guiding block 1043. The guiding block 1043 is connected to the second end 1042 of the hook portion 104, and the guiding block 1043 has a first inclined surface 1044.

FIG. 3 is a schematic diagram of the hook module 10 of the embodiment of the present invention being engaged with the positioning module 20 . As shown in FIG. 3, when the link 101 receives an external force, the elastic member 103 is compressed, and the hook portion 104 is engaged with the positioning portion 201. In the present embodiment, the second end 1042 of the hook portion has a wedge shape, but is not limited thereto, and any shape that allows the hook portion 104 to be engaged with the positioning portion 201 can be applied to the present invention.

In an embodiment, the second end 1042 of the hook portion may have a convex portion 1045. The positioning portion has a recess portion 2011, and the convex portion 1045 can be engaged with the recess portion 2011 for fixing the hook portion 104 to the positioning portion 201 when an external force is applied. Further, the hook portion 104 may have elasticity.

4A and 4B are schematic views showing the hook module 10 of the embodiment of the present invention being separated from the positioning module 20. Fig. 4C is a perspective view showing a region surrounded by a broken line A in Fig. 4B of the present invention. As shown in FIG. 4A, after the hook module 10 is engaged with the positioning module 20 (ie, as shown in FIG. 3), when the connecting rod 101 receives an external force, the hook portion 104 is along the first bump 202. The curved surface 2021 slides. Next, as shown in FIG. 4B, when the external force is removed, the first slope 1044 of the guide block 1043 is along the second slope 2031 of the second bump 203 by the elastic force provided by the elastic member 103 (as shown in FIG. 4C). Illustrated) sliding until the hook portion 104 bypasses the second bump 203 to disengage from the positioning portion 201, at which time the elastic member returns to the original length. After the hook portion 104 bypasses the second bump 203 and is separated from the positioning portion 201, it returns to the state shown in FIG.

In an embodiment, the first slope 1044 of the guide block 1043 can be a trapezoid, which can reduce the friction when the first slope 1044 of the guide block 1043 slides along the second slope 2031 of the second bump 203. In addition, the hook module 10 can also have an extending portion 1046. The extending portion 1046 can be disposed between the first end 1041 and the second end 1042 of the hook portion 104 and extend in the x-axis direction, and the extending portion 1046 has a The corner 1047, the chamfer 1047 of the extension 1046 corresponds to the positioning portion 201.

As shown in FIG. 4A, when an external force is applied to disengage the hook portion 104 from the positioning portion 201, the chamfer 1047 of the extending portion 1046 can move along one end of the positioning portion 201, thereby helping the second end 1042 of the hook portion 104 to follow. The curved surface 2021 of the first bump 202 slides. Next, as shown in FIGS. 4B and 4C, when the external force is removed, the first slope 1044 of the guide block 1043 moves toward the second slope 2031 of the second bump 203.

FIG. 5A is an exploded view of the hook module 10 of the embodiment of the present invention. 5B and 5C are schematic views showing the structure of the B region and the C region in Fig. 5A, respectively. Referring to FIGS. 5B-5C at the same time, the connecting rod 101 has a rectangular cross section connected to the connecting portion 102. In addition, the connecting portion 102 has an opening 1021, and the surface area of the opening 1021 is less than or equal to the cross-sectional area of the connecting rod 101. When the surface area of the opening 1021 is equal to the cross-sectional area of the connecting rod 101, the connecting portion 102 and the connecting rod 101 can be tightly coupled. When the surface area of the opening 1021 is smaller than the cross-sectional area of the connecting rod 101, the connecting portion 102 and the connecting rod 101 can be more closely connected.

FIG. 5D is a plan view showing the connecting portion 102 of the embodiment of the present invention. As shown in the figure, the opening 1021 is a polygon having a plurality of opposite long sides 1021-1 and a plurality of opposite short sides 1021-2. The short side 1021-2 can be used to abut the connecting rod 101 (shown in Fig. 5B), the connection between the link 101 and the connecting portion 102 is made more stable. In addition, the connecting portion 102 may have a plurality of guiding angles 1022. The guiding angles 1022 are adjacent to the long sides 1021-1 and inclined toward the center of the opening 1021, so that the connecting rod 101 can be smoothly sleeved on the connecting portion 102.

Although the short side 1021-2 is taken as a straight line in the 5D drawing, the present invention is not limited thereto. In some embodiments, the short side 1021-2 may also have a curvature as long as the short side 1021- 2 The configuration of the deductible link 101 (shown in Figure 5B) is within the scope of the present invention.

The engaging mechanism disclosed in the present invention has a simplified structure compared with the prior art, and does not need to cooperate with complicated mechanical components and materials to achieve the purpose of engaging, which not only facilitates manufacturing, but also saves cost. Therefore, the engaging mechanism disclosed in the present invention can be widely applied to various mechanical structures and electronic devices in daily life, such as portable electronic devices such as mobile phones and tablet computers.

In conclusion, the present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. Those of ordinary skill in the art to which the present invention pertains, Various changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

1‧‧‧Cordging mechanism

10‧‧‧ hook module

20‧‧‧ Positioning Module

101‧‧‧ linkage

102‧‧‧Connecting Department

103‧‧‧Flexible components

104‧‧‧K hook section

201‧‧‧ Positioning Department

202‧‧‧First bump

203‧‧‧second bump

1041‧‧‧ first end

1042‧‧‧ second end

1045‧‧‧ convex

1046‧‧‧Extension

2011‧‧‧ recess

2021‧‧‧ Surface

2031‧‧‧second slope

X, y, z‧‧‧ axis

Claims (10)

A latching mechanism includes: a hook module comprising: a connecting rod for receiving an external force; and an elastic member sleeved on the connecting rod, wherein when the connecting rod receives the external force, the elastic element is Compressing and providing an elastic force; a hook portion having a first end and a second end, the first end connecting the connecting rod, and the hook portion has elasticity; and a guiding block connecting the hook The second end of the portion has a first inclined surface; and a positioning module includes a positioning portion, a first protruding block and a second protruding block, wherein the positioning portion is used to engage with the hook portion The first bump has a curved surface, and the second bump has a second inclined surface. When the connecting rod receives the external force, the hook portion slides along the curved surface of the first protruding block, and the external force is applied to the external force. In the erasing, the first inclined surface of the guiding block is slid along the second inclined surface of the second protruding block by the elastic force provided by the elastic member until the hook portion bypasses the second protruding block Get out of the positioning section. The engaging mechanism of claim 1, wherein the second end of the hook portion is a wedge shape. The engaging mechanism of claim 1, wherein the second end of the hook portion has a convex portion, and the positioning portion has a concave portion, and the convex portion is fastened to the concave portion. The engaging mechanism of claim 1, wherein the hooking module further comprises an extending portion disposed between the first end and the second end of the hook portion. The engaging mechanism of claim 4, wherein the extending portion has a chamfer. The engaging mechanism of claim 1, wherein the hooking module further comprises a connecting portion disposed between the connecting rod and the hook portion. The engaging mechanism of claim 6, wherein the connecting portion has an opening having a surface area less than or equal to a cross-sectional area of the connecting rod. The engaging mechanism of claim 7, wherein the opening is A polygon having a plurality of opposite long sides and a plurality of opposite short sides, the short sides being used to abut the link. The engaging mechanism of claim 8, wherein the connecting portion has a plurality of guiding angles adjacent to the long sides, and the guiding angles are inclined toward a center of the opening. The engaging mechanism of claim 8, wherein the short sides have a curvature.