TWI523007B - Latch device - Google Patents

Description

Card latch device

The present invention relates to a latching device.

With the rapid development of electronic technology and the rapid growth of the information industry, various electronic information devices such as computers and servers have become more and more popular, and have gradually become an important medium for modern people to obtain information, knowledge or communicate with others.

Due to the popularity of computer applications, it can not only help to deal with personal affairs and storage of information, but also deeply integrate enterprise automation and industrial production applications. For the operating environment under the network connection, the server is an indispensable device, which provides access and calculation of data of each workstation under the network connection.

In recent years, the number and size of files have increased rapidly, resulting in a significant increase in the data access load of servers. Among them, for the server, the performance requirements of the data access device (for example, a hard disk, a floppy disk drive, a readable and writable optical disk drive) are the most important. Therefore, in the architecture of a conventional server, a plurality of data access device spaces are usually provided to prepare a data access device that can be connected at any time.

However, the conventional servos usually use a screw-locking positioning method to directly lock the data access device to the reserved hole of the server casing. Therefore, when replacing or updating a data access device (especially a hard disk), it is often necessary to use an auxiliary tool to disassemble or assemble the screw, so that the disk module can be disassembled, which causes great inconvenience. In the event of screw rust or damage, the work of unpacking becomes trickier and labor intensive. Also, the data access device may be damaged due to careless handling of the screws.

The present invention provides a latching device for engaging a base into a frame. The inner wall of the frame has a groove. The latching device includes a fixing member, a pivot, a cam member, a latching member, and an elastic member. The fixture is fixed to the base and has a surface. The pivot is fixed to the surface. The cam member is pivotally coupled to the pivot and includes a first cam portion and a second cam portion. The first cam portion and the second cam portion are respectively located on opposite sides of the pivot. The second cam portion is engaged in the recess. The card latch is slidably disposed on the surface and includes a bump. The bump is for abutting against the first cam portion. The elastic member is fixed to the surface and abuts against the second cam portion. When the latch member slides along the unlocking direction relative to the surface, the tab pushes the first cam portion to cause the cam member to pivot relative to each other, causing the second cam portion to push the resilient member away from the recess.

In an embodiment of the invention, the fixing member includes a first abutting portion. The first abutment is located on the surface. The card latch includes a first body portion and a second body portion. The bumps connect the first body portions. The second body portion connects the first body portion and is parallel to the first body portion. When the card latch is along the solution When the opposite direction of the lock direction slides against the surface such that the second body portion abuts against the first abutment portion, the bump moves away from the pivot, and the elastic member pushes the second cam portion to cause the cam member to pivot relative to each other. The second cam portion is caused to snap into the groove.

In an embodiment of the invention, the fixing member includes a second abutting portion. The second abutment is located on the surface and has a through hole. The card latch also includes a crossing portion and a hook. The crossing portion connects the second body portion and passes through the through hole. The hook is disposed on the crossing portion and has a guiding surface. When the second body portion abuts against the first abutting portion, the hook is located between the first abutting portion and the second abutting portion, and abuts against the inner edge of the through hole with the guiding surface.

In an embodiment of the invention, the hook further has a snap surface. The snap surface is connected to the guiding surface. When the latching member slides along the unlocking direction relative to the surface to cause the second cam portion to push the elastic member and leave the recess, the hook hooks through the through hole with the crossing portion, and the second abutting portion is buckled by the latching surface .

In an embodiment of the invention, the height of the through hole is greater than the sum of the thickness of the crossing portion and the height of the hook in a direction perpendicular to the surface.

In an embodiment of the invention, the latch member further includes a handle portion. Connect the handle to the crossing.

In an embodiment of the invention, the elastic member includes a fixing portion and a spring portion. The fixing portion is fixed to the surface. The elastic piece portion is coupled to the fixing portion and abuts against the second cam portion for driving the second cam portion into the groove.

In an embodiment of the invention, the fixing member further includes a plurality of blocking structures. The blocking structure is located on the surface for the card latch to abut and guide the card latch to slide relative to the surface in the unlocking direction, and the latch member is located Between the stop structure and the cam member.

In an embodiment of the invention, each of the stopping structures includes a first stopping portion and a second stopping portion. The first stop connecting surface is for the card latch to abut. The latch member is located between the first stop and the cam member. The second stop portion is coupled to the first stop portion and extends above the latch member such that the latch member is positioned between the surface and the second stop portion.

In an embodiment of the invention, the cam member further includes an extension. The extension connects the first cam portion and extends over the bump such that the projection is located between the surface and the extension.

A main technical feature of the latch device provided by the present invention is that after the base provided with the latch device of the present invention is assembled into the frame, the latch member of the latch device can be simply pushed, that is, The cam member of the latching device can be engaged to the inner wall of the frame to achieve the purpose of locking the base in the frame. In contrast, when the base is to be taken out of the frame, the cam member of the latching device can be disengaged from the inner wall of the frame by simply pulling the latching member of the latching device, thereby releasing the base and The purpose of the locking state between the racks and the quick release action. In other words, the base provided with the latching device of the present invention can eliminate the problems and troubles caused by the positioning method using the screw locking.

1‧‧‧ card latch device

10‧‧‧Fixed parts

10a‧‧‧ surface

100‧‧‧First Abutment

102‧‧‧second abutment

102a‧‧‧through hole

104‧‧‧stop structure

104a‧‧‧First stop

104b‧‧‧second stop

12‧‧‧ pivot

14‧‧‧ cam parts

140‧‧‧First cam section

142‧‧‧Second cam department

144‧‧‧Extension

16‧‧‧ card latch

160‧‧‧First Body Department

162‧‧‧Second body

164‧‧‧Bumps

166‧‧‧ crossing department

168‧‧‧ card hook

168a‧‧‧ guiding surface

168b‧‧‧ snap face

170‧‧‧ handle

18‧‧‧Flexible parts

180‧‧‧Fixed Department

182‧‧‧Shrap Department

2‧‧‧Base

3‧‧‧Rack

30‧‧‧ Groove

D‧‧‧ unlock direction

FIG. 1 is a perspective view showing that a base provided with a latch device is engaged to a frame according to an embodiment of the present invention.

Fig. 2 is a perspective view showing the latch device of Fig. 1.

Fig. 3 is another perspective view showing the latch device of Fig. 1.

Fig. 4 is a top view showing Fig. 2;

Fig. 5 is a top view showing Fig. 3.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

Please refer to Figure 1, Figure 2 and Figure 3. FIG. 1 is a perspective view showing the base 2 provided with the latch device 1 engaged with the frame 3 according to an embodiment of the present invention. Fig. 2 is a perspective view showing the latch device 1 of Fig. 1. Fig. 3 is another perspective view showing the latch device 1 of Fig. 1.

As shown in FIGS. 1 to 3 , in the present embodiment, the latch device 1 is mainly disposed on the base 2 and is used to engage the base 2 into the frame 3 . The inner wall of the frame 3 has a recess 30. The latching device 1 includes a fixing member 10, a pivot shaft 12, a cam member 14, a latching member 16, and an elastic member 18. The fixing member 10 of the latching device 1 is fixed to the base 2 and has a surface 10a. It should be noted that the surface 10a of the fixing member 10 is a side of the fixing member 10 away from the base 2. In an embodiment, the pedestal 2 can be a casing of a server, but the invention is not limited thereto.

Please refer to Figure 4 and Figure 5. Fig. 4 is a top view showing Fig. 2; Fig. 5 is a top view showing Fig. 3.

As shown in FIGS. 4 and 5, in the present embodiment, the pivot 12 of the latch device 1 is fixed to the surface 10a of the fixture 10. The cam member 14 of the latch device 1 is pivotally coupled to the pivot 12 and includes a first cam portion 140 and a second cam portion 142. The first cam portion 140 and the second cam portion 142 of the cam member 14 are respectively located on opposite sides of the pivot shaft 12, however the shape of the cam member 14 is not limited to the drawings of the present invention. The second cam portion 142 of the cam member 14 is engaged in the recess 30 of the frame 3.

The latching member 16 of the latching device 1 is slidably disposed on the surface 10a of the fixing member 10 and includes a projection 164. The projection 164 of the latching member 16 is intended to abut against the first cam portion 140 of the cam member 14. The elastic member 18 of the latching device 1 is fixed to the surface 10a of the fixing member 10 and abuts against the second cam portion 142 of the cam member 14. In the present embodiment, the latching member 16 of the latching device 1 and the resilient member 18 are located on the same side of the cam member 14, and the direction in which the cam member 14 is urged to rotate when the two push the cam member 14 is exactly the opposite.

In the present embodiment, the elastic member 18 of the latch device 1 includes a fixing portion 180 and a spring portion 182. The fixing portion 180 of the elastic member 18 is fixed to the surface 10a of the fixing member 10. The elastic portion 182 of the elastic member 18 is coupled to the fixing portion 180 and abuts against the second cam portion 142 of the cam member 14 for driving the second cam portion 142 into the recess 30 of the frame 3.

In one embodiment, the fixing portion 180 of the elastic member 18 is fixed to the surface 10a of the fixing member 10 by riveting, but the invention is not limited thereto.

In one embodiment, the fixing member 10 and the base 2 can also be manufactured by integral molding (that is, the fixing member 10 and the base 2 are integrated into one object). Therefore, the pivot 12 and the elastic member 18 of the latching device 1 can also be directly fixed to the base 2.

With the above structure, when the locking state between the base 2 and the frame 3 is to be released, the latching member 16 of the latching device 1 is slid in the unlocking direction D relative to the surface 10a of the fixing member 10, that is, The protrusion 164 of the latching member 16 can be pushed against the first cam portion 140 of the cam member 14 to rotate the cam member 14 relative to the pivot 12, thereby causing the second cam portion 142 of the cam member 14 to move the spring portion of the elastic member 18. The 182 is pushed open and elastically deformed and leaves the recess 30 of the frame 3. Thereby, the base 2 can be simply taken out of the frame 3.

In contrast, when the base 2 is assembled in the frame 3, if the base 2 is to be locked to the frame 3, the latching member 16 of the latching device 1 is oppositely fixed in the opposite direction of the unlocking direction D. The surface 10a of the slider 10 slides to move the projection 164 of the latch member 16 away from the pivot 12. At this time, the elastic piece 18 is deformed by the second cam portion 142 and is deformed by the second cam portion 142, thereby elastically recovering and pushing the second cam portion 142, thereby driving the cam member 14 to be reversed with respect to the pivot 12, and The two cam portions 142 are snapped into the recesses 30 of the frame 3. Thereby, the base 2 can be simply locked into the frame 3.

Further, as shown in FIGS. 2 and 4, the fixing member 10 of the latch device 1 includes the first abutting portion 100. The first abutment portion 100 of the fixing member 10 is located on the surface 10a of the fixing member 10. The latching member 16 of the latching device 1 includes a first body portion 160 and a second body portion 162. The bump 164 of the latch member 16 is coupled to the first body portion 160. The second body portion 162 of the latching member 16 The first body portion 160 is coupled and parallel to the first body portion 160.

When the latching member 16 slides relative to the surface 10a of the fixing member 10 in the opposite direction of the unlocking direction D to cause the second body portion 162 to abut against the first abutting portion 100 of the fixing member 10, the projection 164 of the latching member 16 Moving away from the pivot 12, the resilient member 18 pushes the second cam portion 142 to rotate the cam member 14 relative to the pivot 12, causing the second cam portion 142 to snap into the recess 30 of the frame 3.

It is to be noted that when the latching member 16 of the latching device 1 slides along the unlocking direction D with respect to the surface 10a of the fixed member 10 to push the cam member 14 to rotate relative to the pivot 12, since the second member of the cam member 14 is caused While the cam portion 142 is away from the recess 30 of the frame 3, the elastic portion 182 of the elastic member 18 is pushed and elastically deformed, so if the latch member 16 is not continuously pulled, the elastic portion 182 of the elastic member 18 will Elastic recovery will cause the cam member 14 to reverse, which in turn causes the latch member 16 to retract to the initial position.

Therefore, in order to solve the above problem, the fixing member 10 of the latch device 1 further includes the second abutting portion 102. The second abutting portion 102 of the fixing member 10 is located on the surface 10a and has a through hole 102a. The latching member 16 of the latching device 1 also includes a ride portion 166 and a hook 168. The crossing portion 166 of the latching member 16 is coupled to the second body portion 162 and passes through the through hole 102a of the second abutting portion 102. The hook 168 of the latching member 16 is disposed on the crossing portion 166 and has a guiding surface 168a and a latching surface 168b. The latching surface 168b of the hook 168 is connected to the guiding surface 168a. When the latch member 16 slides along the unlocking direction D relative to the surface 10a of the fixture 10 such that the second cam portion 142 of the cam member 14 pushes the resilient member 18 away from the recess 30 of the frame 3, the latch member 16 The hook 168 series The crossing portion 166 passes through the through hole 102a of the second abutting portion 102, and the second abutting portion 102 is buckled by the locking surface 168b (as shown in FIG. 3).

Thereby, when the card latching member 16 slides along the unlocking direction D relative to the surface 10a of the fixing member 10 to release the locking state between the base 2 and the frame 3, the latching member 16 can be used by the card of the hook 168 The buckle surface 168b is snapped to the second abutting portion 102 of the fixing member 10, and the cam member 14 is not reversed due to the elastic force of the elastic piece portion 182, and the card latching member 16 is retracted to the initial position.

Also shown in FIGS. 2 and 3, when the second body portion 162 of the latching member 16 abuts against the first abutment portion 100 of the fixing member 10, the hook 168 of the latching member 16 is located at the first abutting portion. Between the 100 and the second abutting portion 102, and with the guiding surface 168a abutting against the inner edge of the through hole 102a, thereby reaching the first abutting portion 100 and the second abutment for positioning the latching member 16 to the fixing member 10. Efficacy between the parts 102 (as shown in Figure 2).

The latching member 16 of the latching device 1 also includes a handle 170. The handle portion 170 of the latching member 16 is coupled to the through portion 166 for receiving the force to drive the entire latching member 16 to slide relative to the surface 10a of the fixed member 10.

With the above-described structure, the latch 16 of the latch device 1 is slid in the unlocking direction D relative to the surface 10a of the fixture 10 (by pulling the handle 170 of the latch member 16) to snap the hook 168. During the process of the surface 168b snapping the second abutment portion 102 of the fixing member 10, the protrusion 164 of the latching member 16 pushes the first cam portion 140 of the cam member 14 to rotate the cam member 14 relative to the pivot 12 as a whole. The second cam portion 142 of the cam member 14 is caused to push the elastic piece portion 182 of the elastic member 18 to be elastically deformed and to be separated from the recess of the frame 3. Slot 30.

In contrast, the latching member 16 of the latching device 1 slides relative to the surface 10a of the fixing member 10 in the opposite direction of the unlocking direction D (by pushing the handle portion 170 of the latching member 16) to cause the latching member 16 to be During the process of the second body portion abutting the first abutment portion 100 of the fixing member 10, the protrusion 164 of the latching member 16 moves away from the pivot shaft 12, and the elastic piece portion 182 of the elastic member 18 elastically recovers and pushes the second portion. The cam portion 142 causes the cam member 14 to rotate relative to the pivot 12, thereby engaging the second cam portion 142 of the cam member 14 into the recess 30 of the frame 3.

In the present embodiment, since the hook 168 of the latching member 16 is higher than the upper edge of the through hole 102a, the latching member 16 of the latching device 1 slides along the unlocking direction D with respect to the surface 10a of the fixing member 10 When the hook 168 passes through the through hole 102a of the second abutting portion 102 together with the passing portion 166, the inner edge of the through hole 102a pushes the guiding surface 168a of the hook 168, so that the latching member 16 is elastically deformed. (especially the crossing portion 166) and curved downward. After the hook 168 of the latching member 16 completely passes through the through hole 102a of the second abutting portion 102, the latching member 16 is elastically restored, and the latching surface 168b of the hook 168 buckles the second abutting portion 102.

In order to achieve the above-described purpose of causing the hook 168 of the card latch 16 to pass through the through hole 102a of the second abutting portion 102 along with the crossing portion 166, in the present embodiment, in a direction perpendicular to the surface 10a of the fixing member 10. In the above, the height of the through hole 102a of the second abutting portion 102 is greater than the sum of the thickness of the crossing portion 166 of the latching member 16 and the height of the hook 168.

In addition, in order to prevent the latching member 16 of the latching device 1 from being uneven The other direction in the unlocking direction D slides relative to the surface 10a of the fixing member 10. In the present embodiment, the fixing member 10 of the latching device 1 further includes a plurality of blocking structures 104. The retaining structure 104 of the fastener 10 is located on the surface 10a for abutting the body portion 160 of the latching member 16 and guiding the latching member 16 to slide relative to the surface 10a in the unlocking direction D. Further, the latching member 16 of the latching device 1 is located between the blocking structure 104 of the fixing member 10 and the cam member 14.

Thereby, when the latching member 16 slides along the unlocking direction D relative to the surface 10a of the fixing member 10 to cause the projection 164 to push the first cam portion 140 of the cam member 14, the reaction force of the first cam portion 140 is reversed. The latching member 16 is caused to abut against the blocking structure 104 of the fixing member 10.

Further, each of the blocking structures 104 of the fixing member 10 includes a first stopping portion 104a and a second stopping portion 104b. The first stop portion 104a of the stop structure 104 is coupled to the surface 10a of the fixture 10 for abutting the body portion 160 of the latch member 16 and guiding the card latch member 16 to slide relative to the surface 10a in the unlocking direction D. The card latch 16 is located between the first stop portion 104a and the cam member 14.

The second blocking portion 104b of the blocking structure 104 is coupled to the first blocking portion 104a and extends above the body portion 160 of the latching member 16, such that the latching member 16 is limited to the surface 10a and the second stop of the fixing member 10. Between the portions 104b. Thereby, the latching device 1 of the present invention can prevent the latching member 16 from leaving the fixing member 10 in other directions not parallel to the surface 10a of the fixing member 10 by the second stopping portion 104b of the blocking structure 104. The effect.

In the present embodiment, the blocking structure 104 of the fixing member 10 is substantially It is L-shaped, but the invention is not limited thereto.

In the present embodiment, the cam member 14 of the latch device 1 further includes an extension portion 144. The extension 144 of the cam member 14 connects the first cam portion 140 and extends over the tab 164 of the latch member 16 such that the tab 164 is positioned between the surface 10a and the extension 144. Thereby, the latch device 1 of the present invention can prevent the latch member 16 from being non-parallel along the extension portion 144 of the cam member 14 in addition to the second stopper portion 104b of the stopper structure 104. The other direction of the surface 10a of the fixture 10 is removed from the fixture 10.

From the above detailed description of the specific embodiments of the present invention, it is apparent that a main technical feature of the latch device provided by the present invention is that the base provided with the latch device of the present invention is assembled to the machine. After the frame is mounted, the cam member of the latching device can be snapped to the inner wall of the frame by simply pushing the latching member of the latching device, thereby achieving the purpose of locking the base into the frame. In contrast, when the base is to be taken out of the frame, the cam member of the latching device can be disengaged from the inner wall of the frame by simply pulling the latching member of the latching device, thereby releasing the base and The purpose of the locking state between the racks and the quick release action. In other words, the base provided with the latching device of the present invention can eliminate the problems and troubles caused by the positioning method using the screw locking.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

1‧‧‧ card latch device

10‧‧‧Fixed parts

10a‧‧‧ surface

100‧‧‧First Abutment

102‧‧‧second abutment

104‧‧‧stop structure

12‧‧‧ pivot

14‧‧‧ cam parts

140‧‧‧First cam section

142‧‧‧Second cam department

144‧‧‧Extension

16‧‧‧ card latch

160‧‧‧First Body Department

162‧‧‧Second body

164‧‧‧Bumps

166‧‧‧ crossing department

168‧‧‧ card hook

170‧‧‧ handle

18‧‧‧Flexible parts

180‧‧‧Fixed Department

182‧‧‧Shrap Department

3‧‧‧Rack

30‧‧‧ Groove

D‧‧‧ unlock direction

Claims (9)

A latching device for engaging a base into a frame, the inner wall of the frame having a recess, the latching device comprising: a fixing member fixed to the base, the fixing member Having a surface, wherein the fixing member further comprises a plurality of blocking structures on the surface; a pivot fixed to the surface; a cam member pivotally connected to the pivot and including a first cam portion and a a second cam portion, the first cam portion and the second cam portion are respectively located on opposite sides of the pivot, wherein the second cam portion is engaged in the groove; a latch member is slidably disposed on the second cam portion The surface includes a bump for abutting the first cam portion, the latch member is located between the blocking structure and the cam member, and an elastic member fixed to the surface And abutting against the second cam portion, wherein when the latch member slides relative to the surface along an unlocking direction, the bump pushes the first cam portion to rotate the cam member relative to the pivot, thereby causing the cam member to The second cam portion pushes the elastic member and leaves the groove, wherein the blocking structures are used for It abuts against the latch member, the latch and the guide member sliding along the surface opposite to the unlocking direction. The latching device of claim 1, wherein the fixing member comprises a first abutting portion, the first abutting portion is located on the surface, the latching member comprises: a first body portion, wherein The bump is coupled to the first body portion; a second body portion connected to the first body portion and parallel to the first body portion, wherein the second body portion abuts when the latch member slides relative to the surface in a direction opposite to the unlocking direction The first abutting portion moves away from the pivot, and the elastic member pushes the second cam portion to rotate the cam member relative to the pivoting portion, so that the second cam portion is engaged to In the groove. The latching device of claim 2, wherein the fixing member comprises a second abutting portion, the second abutting portion is located on the surface, and has a through hole, the latching member further comprising: a crossing portion connecting the second body portion and passing through the through hole; and a hook disposed on the crossing portion and having a guiding surface when the second body portion abuts the first abutting portion The hook is located between the first abutting portion and the second abutting portion, and the guiding surface abuts against the inner edge of the through hole. The latch device of claim 3, wherein the hook further has a latching surface, the latching surface is coupled to the guiding surface, and the latching member slides relative to the surface along the unlocking direction When the second cam portion pushes the elastic member and leaves the groove, the hook passes through the through hole along the through portion, and the second abutting portion is buckled by the snap surface. The latch device of claim 3, wherein the height of the through hole is greater than a sum of a thickness of the through portion and a height of the hook in a direction perpendicular to the surface. The latch device of claim 3, wherein the latch member further comprises a handle that connects the ride portion. The latch device of claim 1, wherein the elastic member comprises: a fixing portion fixed to the surface; and a spring portion connected to the fixing portion and abutting the second cam portion for The second cam portion is driven into the recess. The latching device of claim 1, wherein each of the blocking structures comprises: a first blocking portion connected to the surface for the latching member to abut, wherein the latching member Located between the first stopping portion and the cam member; and a second stopping portion connecting the first stopping portion and extending over the latching member, so that the latching member is located on the surface and the Between the second stops. The latch device of claim 1, wherein the cam member further comprises an extension portion connecting the first cam portion and extending over the protrusion, such that the protrusion is limited to the surface Between the extension.