TWI417069B - Slide assembly with locking device - Google Patents

Description

Slide rail assembly locking device

The present invention relates to a locking device for a slide rail assembly, and more particularly to a first rail and a second rail for controlling a three-section rail that can be locked in a retracted position and that the second rail that is locked is released It is stretched in synchronism with the third rail and does not move with the open third rail.

Take the example of the "Sliding Rail Stretching Linking Positioning Structure" (also approved by the US Patent No. 7,357,468) of Taiwan Patent No. I271168 owned by the applicant. The design of the case is that the middle rail and the inner rail can be stretched from the outer rail synchronously, and after the middle rail is positioned relative to the outer rail, the inner rail and the middle rail can be untwisted and the inner rail can be separately stretched to fully expand, and When folded, the inner rail and the middle rail can be sequentially retracted from the outer rail.

The inventor of the present invention has the function of locking the second rail (middle rail) relative to the first rail (outer rail) in the folding position in view of the design of the multi-section rail of the previous case, and cannot separately lift the second rail (middle rail) ) The effect of simultaneous stretching with the third rail (inner rail). Moreover, when the slide rail is actually mounted on an object such as a cabinet or a drawer, the first rail (outer rail) is installed in the cabinet and connected to the second rail (middle rail), and the third rail (inner rail) is Mounted in the drawer, and the third rail (inner rail) can be inserted or removed relative to the second rail (middle rail). When the third rail (inner rail) is to be detached from the second rail (middle rail), that is, when the drawer is to be removed, the action of the rail is first to move the third rail (inner rail) and the second rail (middle rail) is synchronized from the first rail (outer rail) such that a portion of the rail of the second rail (middle rail) is stretched from the first rail (outer rail), and then the third rail is The inner rail is completely pulled out from the second rail (middle rail), and in such a disassembly process, the required operating space depth of the rail must be at least greater than the full length of the third rail (inner rail) plus the second The length of the rail (middle rail) that is stretched out. Therefore, if the remaining space of a cabinet is only able to satisfy the full length of the third rail (inner rail), the aforementioned rail is not applicable, that is, the design of the previous case cannot meet the installation requirement of the narrow space.

Therefore, it is necessary to provide another design to make the use of the aforementioned slide rails more comprehensive.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a locking device for a slide rail assembly that can control the function of locking and releasing between two rail members of a multi-section rail.

Another object of the present invention is to provide a locking device for a slide rail assembly that can control two rail members of a multi-section rail to be locked in a retracted position, and that the other rail member can be separately stretched and deployed. Disassembled for installation in a small space.

According to the aspect of the present invention, a locking device for a slide rail assembly includes a first blocking body disposed on a first rail, the first blocking body having a sloped surface and a blocking wall at one end of the inclined surface; a locking member The movable member is mounted on a second rail, the second rail is slidably coupled to the first rail, and the second rail includes a sliding slot and an abutting slot, and the locking member includes an operating portion and a guiding a slot, and a positioning leg abutting the side of the abutting slot, and the guiding slot is inclined and opposite to the slot of the second rail; and a stop pin movably mounted on the second rail a sliding groove, and a portion of the guiding groove is inserted into the guiding groove of the locking member, and is operated by the locking member, guided by the guiding groove and sliding along the sliding slot relative to the locking position The first blocking body is further engaged with the blocking wall of the first blocking body so that the second rail is locked to the first rail.

Preferably, a third rail is slidably coupled to the second rail, a synchronous linkage is pivotally connected to the second rail, and the second rail includes an opening for the synchronous linkage to receive, and a The elastic member is fixed to the second rail, wherein the synchronous linkage comprises a first end, a second end, and a middle portion between the first end and the second end, the first end has a a button body; the elastic member provides a spring force acting on the second end of the synchronous linking member, so that the button body of the first end of the synchronous linking member is normally lifted to be exposed above the opening of the second rail; The member has a release portion relative to the buckle body such that the buckle body can be displaced by the release portion of the locking member and sink into the opening of the second rail.

Preferably, the third rail has a second blocking body, the second blocking body is opposite to the button body of the synchronous linking member, and the button body of the synchronous linking member is normally lifted to be exposed on the second rail. In the state above the opening, the second blocking body and the buckle body can be engaged with each other.

Preferably, one side of the abutting groove has a first recessed portion and a second recessed portion for the locking member to change position to position the positioning leg.

Preferably, the second rail includes a pair of fixing holes, and the locking member includes a pair of long slots corresponding to the pair of fixing holes of the second rail, and respectively passes through the long slots of the locking member by a pair of fixing pins and The pair of fixing holes fixed to the second rail.

Figure 1 is a view showing a slide rail assembly including a first rail 10; a second rail 12 longitudinally slidably coupled to the first rail 10; a third rail 14 longitudinally slidably coupled to the second rail 12; and a lock Device. The locking device includes a first blocking body 16 disposed on the first rail 10 , the first blocking body 16 having a slope 18 and a blocking wall 20 at one end of the inclined surface 18 .

A locking member 22 is movably mounted on the second rail 12, and the second rail 12 includes an opening 24, a pair of fixing holes 26, a sliding slot 28, and an abutting groove 30. One side of the abutting groove 30 has a first recessed portion 32 and a second recessed portion 34 . The front and rear ends of the locking member 22 include a release portion 36 and an operating portion 38, and the pair of long slots 40 between the release portion 36 and the operating portion 38 respectively correspond to the pair of the second rails 12 The fixing hole 26, a guiding groove 42 corresponding to the sliding groove 28 of the second rail 12, and a positioning leg 44 corresponding to the abutting groove 30 of the second rail 12, the positioning leg 44 abutting the abutting groove One side of 30. Preferably, the guide groove 42 is inclined. The first recessed portion 32 and the second recessed portion 34 of the abutting groove 30 allow the locking member 22 to change position to position the positioning leg 44.

A stop pin 46 is movably mounted on the chute 28 of the second rail 12 and exposes a portion of the guide groove 42 of the locking member 22.

According to the foregoing configuration, the retaining pin 46 is slidable by the locking member 22, guided by the guiding groove 42 and sliding along the sliding slot 28 with respect to the first blocking body 16 in a locking position. The retaining wall 20 of the first blocking body 16 is engaged with each other such that the second rail 12 is locked to the first rail 10.

Preferably, the locking member 22 can pass through the long slot 40 of the locking member 22 and the pair of fixing holes 26 fixed to the second rail 12 by a pair of fixing pins 48, respectively.

In a preferred embodiment, a synchronous linkage 50 is pivotally connected to the second rail 12, and the opening 24 of the second rail 12 is received by the synchronous linkage 50, and an elastic member 52 is fixed. On the second rail 12. The synchronous linkage 50 includes a first end 54 , a second end 56 , and a middle portion 58 between the first end 54 and the second end 56 , as shown in FIGS. 2 and 3 . The first end 54 has a button body 60 and is connected to the middle portion 58 by a pivot pin 62 to pivotally connect the synchronous link member 50 to the second rail 12 . The elastic member 52 provides an elastic force to the second end 56 of the synchronous linkage 50, so that the buckle 60 of the first end 54 of the synchronous linkage 50 is normally lifted to expose the opening of the second rail 12. Above the 24, the button body 60 is a release portion 36 relative to the locking member 22.

In addition, referring to FIG. 1 , the third rail 14 includes a second blocking body 64 , and the button body 60 of the synchronous linking member 50 is also a second blocking body 64 relative to the third rail 14 . When the button body 60 is lifted up and exposed above the opening 24 of the second rail 12, the second blocking body 64 and the button body 60 can be engaged with each other. In this state, the second rail 12 is It can be pulled out by the third rail 14 to be synchronously displaced, as shown in Fig. 5.

Figure 4 shows the second rail 12 in the collapsed position relative to the first rail 10 and is locked by means of the locking device. The locking operation mode is to displace the operating portion 38 of the locking member 22, so that the positioning leg 44 of the locking member 22 is displaced from the first recess 32 of the abutting groove 30 of the second rail 12 to The second recessed portion 34 is positioned, and the retaining pin 46 is driven by the guiding groove 42 of the locking member 22 to be displaced along the sliding slot 28 of the second rail 12 to a locking position relative to the first blocking body 16 . Further, the retaining pin 46 and the retaining wall 20 of the first retaining body 16 are engaged with each other such that the second rail 12 is locked to the first rail 10; meanwhile, the first end 54 of the synchronous linking member 50 is buckled. The body 60 is also displaced by the release portion 36 of the locking member 22 and sunk into the opening 24 of the second rail 12 to disengage the button body 60 from the second blocking body 64 of the third rail 14. In this state, the third rail 14 can be pulled out separately, and the second rail 12 is not driven to be synchronously displaced. The second rail 12 is also locked to the first rail 10.

When the third rail 14 and the second rail 12 are to be synchronously displaced by the first rail 10, as shown in FIG. 5, the locking member 22 is pushed back to the positioning leg 44. The first recessed portion 32 of the abutting groove 30 of the second rail 12 causes the releasing portion 36 of the locking member 22 to release the pushing of the button body 60 of the synchronous linking member 50, so that the button body 60 of the synchronous linking member 50 is released. The spring force of the elastic member 52 is returned to the upper opening 24 of the second rail 12 and the second retaining body 64 of the third rail 14 is locked. Therefore, when the third rail 14 is stretched, the second rail 12 can be synchronously stretched and displaced with the third rail 14.

As described above, the locking device of the slide rail assembly of the present invention can be used to control the first rail and the second rail of the three-section rail to be locked in the folding position, and to release the locked second rail. Stretching in synchronism with the third rail without moving with the open third rail. The design of the present invention is particularly suitable for a space in a limited space. For example, when the depth of the equipment room of the electronic device is not large, the space is not convenient for providing the three-section slide rail to be fully deployed and disassembled, or only partial opening during maintenance. The design of the present invention can meet the needs to facilitate the installation or disassembly of the electronic devices.

10. . . First track

12. . . Second track

14. . . Third track

16. . . First block

18. . . Bevel

20. . . Barrier

twenty two. . . Locking piece

twenty four. . . Opening

26. . . Fixed hole

28. . . Chute

30. . . Abutment slot

32. . . First depression

34. . . Second depression

36. . . Release department

38. . . Operation department

40. . . Long slot

42. . . Guide slot

44. . . Positioning foot

46. . . Stop pin

48. . . Fixed pin

50. . . Synchronous linkage

52. . . Elastic part

54. . . First end

56. . . Second end

58. . . Middle section

60. . . Button body

62. . . Pivot

64. . . Second block

1 is a schematic view showing the configuration of a slide rail assembly according to an embodiment of the present invention;

2 is a schematic view showing the configuration of a synchronous linkage according to an embodiment of the present invention;

3 is a schematic view showing the combination of the locking member and the synchronous linkage relative to the second rail according to the embodiment of the present invention;

Figure 4 is a view showing the locking of the second rail of the embodiment of the present invention with respect to the first rail at the folding position;

FIG. 5 is a schematic view showing the unlocking of the third rail and the second rail according to the fourth embodiment of the present invention.

10. . . First track

12. . . Second track

14. . . Third track

16. . . First block

18. . . Bevel

20. . . Barrier

twenty two. . . Locking piece

twenty four. . . Opening

26. . . Fixed hole

28. . . Chute

30. . . Abutment slot

32. . . First depression

34. . . Second depression

36. . . Release department

38. . . Operation department

40. . . Long slot

42. . . Guide slot

44. . . Positioning foot

46. . . Stop pin

48. . . Fixed pin

50. . . Synchronous linkage

52. . . Elastic part

60. . . Button body

64. . . Second block

Claims (5)

A locking device for a slide rail assembly includes: a first blocking body disposed on a first rail, the first blocking body having a sloped surface and a blocking wall at one end of the inclined surface; a locking member movablely mounted a second rail, the second rail is slidably coupled to the first rail, and the second rail includes a sliding slot and an abutting slot, and the locking component includes an operating portion, a guiding slot, and a positioning a foot is abutted on a side of the abutting groove, and the guiding groove is inclined and opposite to the sliding groove of the second rail; and a stopper pin is movably mounted on the sliding groove of the second rail and exposed a portion is disposed in the guiding groove of the locking member, and is operated by the locking member, guided by the guiding groove and sliding along the sliding slot relative to the first blocking body at a locking position Further, the retaining wall of the first blocking body is engaged with each other such that the second rail is locked to the first rail. The locking device of the slide rail assembly of claim 1, further comprising a third rail slidingly connected to the second rail, a synchronous linkage pivotally connected to the second rail, and the second rail An opening is provided for the synchronous linkage, and an elastic member is fixed to the second rail, wherein the synchronous linkage includes a first end, a second end, and a middle portion at the first end Between the second end and the second end, the first end has a button body; the elastic member provides an elastic force acting on the second end of the synchronous linking member, so that the first end of the synchronous linking member is normally lifted And being exposed above the opening of the second rail; the locking member has a release portion relative to the buckle body, so that the buckle body can be displaced by the release portion of the locking member to sink toward the opening of the second rail In. The locking device of the slide rail assembly of claim 2, wherein the third rail has a second blocking body, the second blocking body is opposite to the fastening body of the synchronous linking member, and the synchronization When the button body of the linking member is normally lifted to be exposed above the opening of the second rail, the second blocking body and the button body can be engaged with each other. The locking device of the slide rail assembly of claim 1, wherein one side of the abutting groove has a first recessed portion and a second recessed portion for the locking member to change position to the positioning leg Get in place. A locking device for a slide rail assembly according to claim 1, wherein the second rail includes a pair of fixing holes, and the locking member includes a pair of long slots corresponding to the pair of fixing holes of the second rail, And a pair of fixing pins respectively pass through the long groove of the locking member and the pair of fixing holes fixed to the second rail.