TW202203813A - Slide rail assembly - Google Patents

Abstract

A slide rail assembly includes a first rail, a second rail, a third rail and a position limiting member. The third rail is movably mounted between the first rail and the second rail. The second rail and the third rail are able to be displaced from a predetermined position toward a first direction relative to the first rail. The position limiting member is arranged with a first portion and a second portion. When the second rail and the third rail are located at the predetermined position relative to the first rail, the first portion of the position limiting member is disposed adjacent to the end portions of the first rail, the second rail and the third rail, and the second portion of the position limiting member is configured to prevent the first rail, the second rail and the third rail from detaching from each other in a second direction. The first direction and the second direction are directions arranged substantially perpendicular to one another.

Description

Slide rail assembly

The present invention relates to a slide rail, in particular to a reliable slide rail assembly.

FIG. 1 shows a slide rail assembly 10 of the prior art. The slide rail assembly 10 includes a plurality of slide rails. Wherein, a second rail 14 is movably installed in a channel 16 of the first rail 12 , and a sliding device 18 has a plurality of balls for assisting the longitudinal displacement of the second rail 14 relative to the first rail 12 . Further, the slide rail assembly 10 must comply with some standard safety specifications and quality control in order to meet the basic needs of the market. For example, the slide rail assembly 10 typically must undergo a shock test to verify that the slide rails of the slide rail assembly 10 are durable and capable of carrying a load of a specific weight (eg, a server or a drawer and the like). Wherein, when the slide rail assembly 10 is subjected to the vibration test (Fig. 1 only shows that a force F is applied to the slide rail assembly 10), if the slide rail assembly 10 receives the force F, the slide rails will If there is a phenomenon of separation or bending, it means that there is doubt in the safety and quality of the slide rail assembly 10 . 1 shows that after the slide rail assembly 10 receives the force F, part of the second rail 14 is laterally (or laterally) disengaged or bent relative to the first rail 12 , which will cause the second rail 14 to not be can be correctly installed in the channel 16 of the first rail 12, and cause the second rail 14 to fail smoothly Displacement relative to the first rail 12 .

Therefore, how to develop a reliable slide rail assembly has become a topic worthy of discussion.

The present invention relates to a reliable slide rail assembly.

According to an aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a third rail, and a limiting member. The first rail includes a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail; the second rail includes a first wall, a second wall and A longitudinal wall is connected between the first wall and the second wall of the second rail; the third rail is movably installed between the first rail and the second rail, and the second rail and the third rail Can be displaced relative to the first rail from a retracted position along a first direction; the limiting member has a first part and a second part; wherein, when the second rail and the third rail are opposite to the first rail When in the folded position, the first portion of the limiting member is disposed adjacent to the front end portion of the first rail, the second rail and the third rail, and the second portion of the limiting member is used to prevent the The first rail, the second rail and the third rail are separated from each other in a second direction, and the first direction and the second direction are in a substantially vertical relationship.

Preferably, the first rail is arranged with a bracket fixedly connected to the first rail, the bracket has a limit feature, the limit feature includes an upper part, a lower part and a middle part, the upper part, the lower part and the The middle portion together defines a limiting space for the second portion of the limiting member to extend into to form a limiting relationship with the upper portion, the lower portion and the middle portion of the limiting feature.

Preferably, the bracket has an upper support part, a lower support part and a middle support part connected between the upper support part and the lower support part, and the upper support part is located on the first wall adjacent to the first rail , the lower support part is located at the second wall adjacent to the first rail, and the middle support part is located at the longitudinal wall adjacent to the first rail.

Preferably, the limiting feature is a notch type.

Preferably, the middle portion of the restraining feature is located adjacent to the front end of the first rail, and the upper and lower portions of the restraining feature are located beyond the front end of the first rail.

Preferably, the limiting member is fixedly arranged on the second rail.

Preferably, the limiting member and the second rail are integrated together.

Preferably, the second portion of the limiting member extends substantially vertically from the first portion.

Preferably, when the second rail and the third rail are displaced from the retracted position to an extended position relative to the first rail, the limiting member is away from the front ends of the first rail and the third rail.

Preferably, the sliding rail assembly further includes at least one sliding aid device, and the first rail, the second rail and the third rail are supported relative to each other through the at least one sliding aid device.

According to another aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a third rail and a limiting member. The third rail is movably installed between the first rail and the second rail, and the first rail, the second rail and the third rail are longitudinally displaceable relative to each other; the stopper is arranged on the first rail two rail; wherein, when the second rail and the third rail are in a predetermined position relative to the first rail, the limiting member can buckle the first rail to prevent the first rail, the second rail and the The third rails are disengaged laterally relative to each other.

Preferably, the first rail comprises a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail, the first wall and the second wall of the first rail The wall and the longitudinal wall together define a channel; the third rail is movably installed in the channel of the first rail, and the third rail includes a first wall, a second wall and a longitudinal wall connected to the first wall of the third rail. Between a wall and the second wall, the first wall, the second wall and the longitudinal wall of the third rail together define a channel; the second rail is movably installed in the channel of the third rail.

Preferably, the predetermined position is a retracted position.

Preferably, the second rail has a first end and a second end away from the first end of the second rail, and the limiting member is located adjacent to the first end of the second rail.

Preferably, the limiting member includes a first portion and a second portion; the first rail is arranged with a bracket, the bracket has a limiting feature, and the limiting feature includes an upper portion, a lower portion and a middle portion, The upper part, the lower part and the middle part together define a limiting space; when the second rail and the third rail are at the predetermined position relative to the first rail, the second part of the limiting member extends into the limiting space And form a limiting relationship with the upper part, the lower part and the middle part of the limiting feature.

Preferably, the bracket has an upper support portion, a lower support portion and an intermediate support portion connected between the upper support portion and the lower support portion, and the upper support portion The support part is located on the first wall adjacent to the first rail, the lower support part is located on the second wall adjacent to the first rail, and the middle support part is located on the longitudinal wall adjacent to the first rail.

Preferably, the second portion of the limiting member extends substantially vertically from the first portion.

Preferably, the slide rail assembly further comprises a first support seat arranged on a first wall adjacent to the third rail, and a second support seat arranged on a second wall adjacent to the third rail; the first support seat is arranged on the second wall adjacent to the third rail; The support base has a first groove, and the second support base has a second groove; the second rail includes a first wall, a second wall and a longitudinal wall connected to the first wall of the second rail and the second wall; the first wall of the second rail has a first support foot extending into the first groove, and the second wall of the second rail has a second support foot extending into the second The groove is used to prevent the movement of the second rail in the lateral direction.

According to yet another aspect of the present invention, a slide rail assembly includes a first rail, a second rail, a third rail and a limiting member. The first rail includes a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail; the second rail includes a first wall, a second wall and A longitudinal wall is connected between the first wall and the second wall of the second rail; the third rail is movably mounted between the first rail and the second rail, and the third rail includes a first wall , a second wall and a longitudinal wall are connected between the first wall and the second wall of the third rail; the limiter is arranged on the second rail; wherein, the first rail, the second rail and the Two of the sliding rails of the third rail are supported relative to each other through at least one sliding device; wherein, when the second rail and the third rail are in a predetermined position relative to the first rail When in position, there is a predetermined distance between one end of the at least one sliding device and a first end of the first rail, and a portion of the limiting member is adjacent to one side of the longitudinal wall of the first rail.

[Knowledge Technology]

10: Slide rail assembly

12: The first track

14: Second track

16: Channel

18: slippery device

F: strength

[Example of this case]

100,200: Slide rail assembly

102,202: first track

102a: First end

102b: Second end

104,204,300:Track 2

104a, 204a: First end

104b: Second end

106,206:Track 3

106a, 206a: First end

106b: Second end

108, 208, 302: Limits

110a: First Wall

110b: Second Wall

112: Longitudinal Wall

114: Bracket

116a: upper support

116b: lower support

118: Intermediate support

120: Limit feature

120a: Upper

120b: lower part

120c: Middle part

122a: First Wall

122b: Second Wall

124, 224: Longitudinal Walls

126a: First Wall

126b: Second Wall

128: Longitudinal Wall

130,230: Part 1

132,232: Part II

134a, 234a: First bead

134b, 234b: Second bead

136: Rolling Pieces

138,238: First slipper

140,240: Second slip device

142a: first ball

142b: Second ball

144a, 244a: first support seat

144b: Second support seat

145: First gear

146,246: First groove

148, 248: Second groove

150,250: first support foot

152, 252: Second support foot

D1: first direction

D2: Second direction

E1: First extension position

E2: Second extended position

K1: The first predetermined distance

K2: The second predetermined distance

L,L': side

P: Predetermined location

S: limited space

FIG. 1 shows a schematic diagram of a slide rail assembly of the prior art;

FIG. 2 is a schematic diagram showing the combination of the slide rail assembly according to the first embodiment of the present invention including a first rail, a second rail and a third rail;

3 shows an exploded schematic view of the slide rail assembly according to the first embodiment of the present invention;

4 shows a partial schematic view of the second rail of the slide rail assembly according to the first embodiment of the present invention;

5 shows a schematic cross-sectional view of the second rail of the slide rail assembly according to the first embodiment of the present invention;

6 shows a schematic diagram of the slide rail assembly in a retracted state according to the first embodiment of the present invention;

7 is a schematic diagram showing the slide rail assembly in an extended state according to the first embodiment of the present invention;

FIG. 8 is a partial three-dimensional schematic diagram showing a first view angle of the slide rail assembly in the collapsed state according to the first embodiment of the present invention;

FIG. 9 is a partial perspective view showing a second perspective view of the slide rail assembly in the collapsed state according to the first embodiment of the present invention;

10 is a schematic diagram showing the combination of a slide rail assembly comprising a first rail, a second rail and a third rail according to the second embodiment of the present invention;

FIG. 11 shows an exploded schematic view of the slide rail assembly according to the second embodiment of the present invention;

12 shows a partial schematic view of the second rail of the slide rail assembly according to the second embodiment of the present invention;

13 shows a schematic cross-sectional view of the second rail of the slide rail assembly according to the second embodiment of the present invention;

FIG. 14 is a schematic diagram showing the slide rail assembly in a retracted state according to the second embodiment of the present invention;

Figure 15 shows a partial schematic view of the second rail of the slide rail assembly of the second embodiment of the present invention in a predetermined position relative to the third rail;

FIG. 16 shows a schematic cross-sectional view of the second rail of the slide rail assembly according to the second embodiment of the present invention in the predetermined position relative to the third rail; and

Figure 17 shows a partial schematic view of the second rail of the third embodiment of the present invention.

As shown in FIGS. 2 and 3 , a slide rail assembly 100 according to the first embodiment of the present invention includes a first rail 102 , a second rail 104 , a third rail 106 and a limiting member 108 . The third rail 106 is movably mounted between the first rail 102 and the second rail 104 . The first rail 102, the second rail 104 and the third rail 106 are longitudinally displaceable relative to each other. The first rail 102 , the third rail 106 and the second rail 104 are, for example, an outer rail, a middle rail and an inner rail, respectively, but the implementation is not limited. It is worth mentioning that, in this embodiment, the X-axis direction is the longitudinal direction (or the longitudinal direction or the displacement direction of the slide rail), the Y-axis direction is the lateral direction (or the lateral direction of the slide rail), and the Z-axis direction is the vertical direction ( or the height direction of the rail).

The first rail 102 includes a first wall 110 a , a second wall 110 b and a longitudinal wall 112 connected between the first wall 110 a and the second wall 110 b of the first rail 102 . The first wall 110a, the second wall 110b and the longitudinal wall 112 of the first rail 102 together define a channel. Wherein, the first rail 102 is arranged with a bracket 114 , and the bracket 114 is connected (eg fixed) to the first rail 102 and can be regarded as a part of the first rail 102 . In other words, the bracket 114 and the first rail 102 can be seen as one piece. The first rail 102 has a first end 102a and a second end 102b away from the The first end portion 102a, the first end portion 102a and the second end portion 102b are, for example, a front end portion and a rear end portion, but the implementation is not limited. The bracket 114 has an upper support portion 116a, a lower support portion 116b and an intermediate support portion 118 connected between the upper support portion 116a and the lower support portion 116b, and the upper support portion 116a is located adjacent to the first rail 102 The lower support portion 116b is located adjacent to the second wall 110b of the first rail 102 , and the middle support portion 118 is located adjacent to the longitudinal wall 112 of the first rail 102 .

Preferably, the bracket 114 has a limiting feature 120, and the limiting feature 120 includes an upper portion 120a, a lower portion 120b and a middle portion 120c. The upper part 120a, the lower part 120b and the middle part 120c together define a limiting space S.

Preferably, the limiting feature 120 is a notch type.

Preferably, the middle portion 120c of the limiting feature 120 is located adjacent to the first end portion 102a (eg, the front end) of the first rail 102, and the upper portion 120a and the lower portion 120b of the limiting feature 120 are located beyond the first rail 102. A first end 102a (eg, a front end) of a rail 102 .

The third rail 106 is movably mounted within the channel of the first rail 102 . The third rail 106 includes a first wall 122 a , a second wall 122 b and a longitudinal wall 124 connected between the first wall 122 a and the second wall 122 b of the third rail 106 . The first wall 122a, the second wall 122b and the longitudinal wall 124 of the third rail 106 together define a channel. The third rail 106 has a first end 106a and a second end 106b away from the first end 106a. The first end 106a and the second end 106b are, for example, a front end and a rear end, but Implementation is not limited.

The second rail 104 is movably mounted within the channel of the third rail 106 . The second rail 104 includes a first wall 126a , a second wall 126b and a longitudinal wall 128 connected between the first wall 126a and the second wall 126b of the second rail 104 . The second rail 104 has a first end 104a and a second end 104b away from the first end 104a. The first end 104a and the second end 104b are, for example, a front end and a rear end, but Implementation is not limited.

Preferably, the slide rail assembly 100 further includes at least one slide aid device, and the first rail 102 , the second rail 104 and the third rail 106 are supported relative to each other through the at least one slide aid device. For example, the slide rail assembly 20 includes at least one slide aid device for helping the smoothness of the first rail 102 relative to the third rail 106 during relative displacement. Here, the at least one slide aid device is a first bead strip. 134a and a second bead 134b are located in the channel of the first rail 102, and both the first bead 134a and the second bead 134b have a plurality of rolling elements 136 for supporting the third rail 106 respectively. The first wall 122a and the second wall 122b are for example, but the implementation is not limited. On the other hand, the slide rail assembly 20 further includes at least one other slide aid device for helping the smoothness of the relative displacement of the second rail 104 and the third rail 106 . Here, the at least another slide aid device is a A first sliding device 138 and a second sliding device 140 are movably installed in the channel of the third rail 106 as an example, wherein the first sliding device 138 and the second sliding device 140 can be used respectively In order to support different parts of the second rail 104, the first sliding device 138 and the second sliding device 140 both include a plurality of first balls 142a and a plurality of second balls 142b (this part can also be matched 6), the first sliding device 138 and the second The first balls 142a of the sliding device 140 are supported between the first wall 122a of the third rail 106 and the first wall 126a of the second rail 104, and the first sliding device 138 and the second sliding The second balls 142b of the device 140 are supported between the second wall 122b of the third rail 106 and the second wall 126b of the second rail 104 .

As shown in FIGS. 3 , 4 and 5 , the limiting member 108 is arranged on the second rail 104 , and the limiting member 108 has a first portion 130 and a second portion 132 . Preferably, the limiting member 108 is fixedly disposed on the second rail 104 , and the second portion 132 of the limiting member 108 extends substantially vertically from the first portion 130 . Preferably, the limiting member 108 is located adjacent to the first end portion 104a of the second rail 104 as an example, but the implementation is not limited.

As shown in FIG. 6 and FIG. 7 , the second rail 104 and the third rail 106 may be in a predetermined position P relative to the first rail 102 (eg, a retracted position, as shown in FIG. 6 ). Wherein, the first rail 102 and the third rail 106 are supported relative to each other through the at least one sliding device (eg, the first bead 134a and the second bead 134b); on the other hand, the third rail 106 and the The two rails 104 are supported relative to each other through the at least one other sliding device (eg, the first sliding device 138 and the second sliding device 140 ). Wherein, when the second rail 104 and the third rail 106 are in the predetermined position P relative to the first rail 102, a first end (eg, There is a first predetermined distance K1 between the front end) and the first end 106a of the third rail 106, and a first end of the at least one sliding device (eg, the first bead 134a and the second bead 134b) There is a second predetermined distance K2 between (eg the front end) and the first end portion 102a of the first rail 102 (as shown in FIG. 6 ). Show).

Further, when the second rail 104 and the third rail 106 are respectively displaced relative to the first rail 102 from the predetermined position P along a first direction D1 (eg longitudinal direction) to a first extending position E1 and a second extending position E1 In the extended position E2 (as shown in FIG. 7 ), the limiting member 108 is away from the front ends 102 a and 106 a of the first rail 102 and the third rail 106 , and the at least one other sliding device (such as the first sliding aid) The device 138) and the at least one sliding device (for example, the first bead 134a and the second bead 134b) are also displaced in the first direction D1 toward the first end 106a of the third rail 106 and the first end 106a of the third rail 106, respectively. The first end 102a of the rail 102 is approached.

Preferably, the slide rail assembly 100 further includes at least one support seat, for example, a first support seat 144a is arranged adjacent to the first wall 122a of the third rail 106, and a second support seat 144b is arranged adjacent to the first wall 122a of the third rail 106. The second wall 122b of the third rail 106, where the first support seat 144a and the second support seat 144b are close to the first end 106a of the third rail 106 and located in the channel of the third rail 106 For example, the channel opening of the slide rail assembly further includes two first blocking parts 145 (eg, two front blocking parts) respectively arranged on the first wall 110a and the second wall 110b of the adjacent first rail 102, here , for example, the two first blocking portions 145 are close to the first end portion 102 a of the first rail 102 and are located at the passage opening of the passage of the first rail 102 . When the second rail 104 and the third rail 106 are respectively displaced to the first extending position E1 and the second extending position E2 relative to the first rail 102 in the first direction D1 (as shown in FIG. 7 ), the At least one other sliding device (eg, the first sliding device 138 ) is blocked by the first support seat 144 a and the second support seat 144 b of the third rail 106 , and the At least one sliding device (eg, the first bead 134 a and the second bead 134 b ) is blocked by the two first blocking portions 145 of the first rail 102 .

As shown in FIG. 6 , FIG. 8 and FIG. 9 , when the second rail 104 and the third rail 106 are at the predetermined position P relative to the first rail 102 , the first portion 130 of the limiting member 108 is disposed at the opposite position. Adjacent to the first end portions (eg, front end portions) 102a, 104a, 106a of the first rail 102, the second rail 104 and the third rail 106, and the second portion 132 of the stopper 108 is used to prevent the first A rail 102 , the second rail 104 and the third rail 106 are separated from each other in a second direction D2 (eg, laterally or laterally), and the first direction D1 and the second direction D2 are substantially perpendicular to each other .

Preferably, when the second rail 104 and the third rail 106 are in the predetermined position P relative to the first rail 102 , the limiting space S of the limiting feature 120 of the bracket 114 is used for the limiting member 108 The second portion 132 of the limiting member 108 extends into, so that the second portion 132 of the limiting member 108 forms a limiting relationship with the upper portion 120a, the lower portion 120b and the middle portion 120c of the limiting feature 120 (as shown in FIG. 8 and FIG. 9 ) .

Preferably, when the second rail 104 and the third rail 106 are in the predetermined position P relative to the first rail 102 , the first end of the at least another sliding device (for example, the first sliding device 138 ) There is the first predetermined distance K1 (as shown in FIG. 6 ) between (eg, the front end) and the first end 106a of the third rail 106 , and the at least one slippery device (eg, the first bead 134a and the second There is the second predetermined distance K2 (as shown in FIG. 6 ) between the first end (eg, the front end) of the bead 134b ) and the first end 102a of the first rail 102 . That is, the rail section of the second rail 104 within the range of the first predetermined distance K1 cannot be blocked by the at least one other sliding device (for example, the first predetermined distance K1). A sliding device 138 and the second sliding device 140 are supported, and the rail section of the third rail 106 within the second predetermined distance K2 cannot be supported by the at least one sliding device (eg, the first bead 134a and the The second bead 134b) is supported. At this time, if a force (or external force) is applied to the slide rail assembly 100, the first rail 102, the second rail 104 and the first rail 102 and the second rail 104 within the predetermined distances K1 and K2 The rail sections of the third rail 106 may therefore not be effectively supported against each other so as to be affected by the force (or external force), causing the first rail 102, the second rail 104 and the third rail The rail segments of 106 are disengaged from each other. Therefore, in this embodiment, a portion (eg, the second portion 132 ) of the limiting member 108 can be adjacent to one side L of the longitudinal wall 112 of the first rail 102 (or the middle of the bracket 114 of the first rail 102 ) The side L) of the support portion 118 , for example, the portion (eg, the second portion 132 ) of the limiting member 108 can fasten the side L of the longitudinal wall 112 of the first rail 102 (or fasten the first rail 102, the side L of the middle support portion 118 of the bracket 114, as shown in FIG. 8 and FIG. 9), is used to prevent the first rail 102, the second rail 104 and the third rail 106 from moving toward the second rail 102 relative to each other. Direction D2 (eg lateral or lateral) is active or disengaged. That is, once the force acts on the slide rail assembly 100 in the second direction D2 (as shown in FIG. 8 and FIG. 9 ), the portion (eg, the second portion 132 ) of the limiting member 108 is adjacent to the first The side L of the longitudinal wall 112 of a rail 102 (or the side L of the middle support portion 118 of the bracket 114 adjacent to the first rail 102 ) makes this part of the limiting member 108 (for example, the second portion 132 ) ) and the side L of the longitudinal wall 112 of the first rail 102 (or the side L of the middle support portion 118 of the bracket 114 of the first rail 102 ) can be in contact with each other to produce a blocking effect to prevent the first rail 102 The rail 102, the second rail 104, and the third rail 106 move relative to each other The second direction D2 (eg lateral or lateral) is active or disengaged. Wherein, the first portion 130 and the second portion 132 of the limiting member 108 together define a space for accommodating at least a part of the first end portion 102 a of the first rail 102 (or the middle portion 120 c of the bracket 114 ) and the first end portion 102 a of the first rail 102 At least a portion of the first end 106a of the three rails 106 (shown in Figures 8 and 9).

Preferably, the first support base 144a has a first groove 146, and the second support base 144b has a second groove 148 (as shown in FIG. 8). On the other hand, the first wall 126a of the second rail 104 has a first supporting leg 150 protruding into the first groove 146, and the second wall 126b of the second rail 104 has a second supporting leg 152 protruding into the first groove 146 The second trench 148 . Wherein, when the second rail 104 and the third rail 106 are at the predetermined position P relative to the first rail 102, the second rail 104 extends into the first groove 146 through the first supporting leg 150, and the first rail 104 extends into the first groove 146. The second rail 104 extends into the second groove 148 through the second supporting leg 152 to prevent the second rail 104 and the third rail 106 from moving or disengaging in the second direction D2 relative to each other (as shown in FIG. 8 ). .

As mentioned above, once the force acts on the slide rail assembly 100 in the second direction D2 (as shown in FIG. 8 and FIG. 9 ), even if the second rail 104 is within the range of the first predetermined distance K1 A portion of the first wall 126a and the second wall 126b may be supported by the first support seat 144a and the second support seat 144b, respectively, however, if the force applied is large enough, the first wall of the second rail 104 The first support leg 150 of the second wall 126a and the second support leg 152 of the second wall 126b may still be moved from the first groove 146 of the first support seat 144a to the second direction D2, respectively. The second groove 148 of the second support seat 144b is disengaged, so that the first wall 126a and the second wall 126b of a part of the rail section of the second rail 104 within the range of the first predetermined distance K1 cannot be correctly positioned on the first wall 126a and the second wall 126b. In the passage of the three rails 106 , therefore, the embodiment of the present invention provides that the position (eg, the second portion 132 ) of the limiting member 108 is adjacent to the side L of the longitudinal wall 112 of the first rail 102 (or adjacent to the first rail 102 ). The side L) of the middle support portion 118 of the bracket 114 of a rail 102 can be used to prevent the second rail 104 and the third rail 106 from moving relative to each other in the second direction D2 (as shown in FIG. 8 ), that is, The limiting member 108 can be used to ensure that the first supporting leg 150 of the first wall 126a of the second rail 104 and the second supporting leg 152 of the second wall 126b are not separated from the first groove of the first supporting seat 144a. 146 is disengaged from the second groove 148 of the second support seat 144b, so as to ensure that the second rail 104 will not be affected by the force (or external force) and can be stably installed in the channel of the third rail 106 Being installed in the channel of the third rail 106 makes the slide rail assembly 100 reliable and safe in use.

FIG. 10 and FIG. 11 show that the slide rail assembly 200 according to the second embodiment of the present invention includes a first rail 202 , a second rail 204 , a third rail 206 and a limiting member 208 . The third rail 206 is movably mounted between the first rail 202 and the second rail 204 .

As shown in FIGS. 11 , 12 and 13 , the limiting member 208 is arranged on the second rail 204 , and the limiting member 208 has a first portion 230 and a second portion 232 . Preferably, the limiting member 208 is fixedly disposed on the second rail 204 , and the second portion 232 of the limiting member 208 extends substantially vertically from the first portion 230 . Preferably, the limiting member 208 is located adjacent to the first end of the second rail 204 204a is taken as an example, but the implementation is not limited.

As shown in FIG. 14 , the second rail 204 and the third rail 206 may be in the predetermined position P (eg, a retracted position) relative to the first rail 202 . Wherein, the first rail 202 and the third rail 206 are supported relative to each other through the at least one sliding device (for example, the first bead 234a and the second bead 234b); on the other hand, the third rail 206 and the The two rails 204 are supported relative to each other through the at least one other sliding device (eg, the first sliding device 238 and the second sliding device 240 ). Wherein, when the second rail 204 and the third rail 206 are at the predetermined position P relative to the first rail 202 , the first end (eg, the front end) of the at least another sliding device (eg, the first sliding device 238 ) ) and the first end 206a of the third rail 206 have a first predetermined distance K1.

As shown in FIGS. 14 , 15 and 16 , when the second rail 204 is at the predetermined position P relative to the third rail 206 , the first portion 230 of the limiting member 208 is disposed adjacent to the second rail 204 and the first end (front end) 204a, 206a of the third rail 206, and the second portion 232 of the limiting member 208 is used to prevent the second rail 204 and the third rail 206 from moving towards the first rail 204 and the third rail 206 Two directions D2 (eg lateral or lateral, as shown in Figures 15 and 16) are disengaged. The first direction D1 and the second direction D2 are substantially perpendicular.

Preferably, when the second rail 204 is at the predetermined position P relative to the third rail 206, the first end (eg, the front end) of the at least another sliding device (eg, the first sliding device 238 ) and the The first predetermined distance K1 (as shown in FIG. 6 ) exists between the first ends 206a of the third rail 206 . That is, the second rail 204 is in the The rail segment within the range of the first predetermined distance K1 cannot be supported by the at least one other sliding device (eg, the first sliding device 238 and the second sliding device 240 ). At this time, if the sliding rail assembly 200 accepts When there is a force (or external force), the rail sections of the second rail 204 and the third rail 206 within the range of the first predetermined distance K1 may not be effectively supported between each other and may be The force (or external force) causes the rail sections of the second rail 204 and the third rail 206 to disengage from each other. Therefore, in this embodiment, a portion (eg, the second portion 232 ) of the limiting member 208 can be adjacent to one side L′ of the longitudinal wall 224 of the third rail 206 , eg, this portion of the limiting member 208 . (eg, the second portion 232) can buckle the side L' of the longitudinal wall 224 of the third rail 206 to prevent the second rail 204 and the third rail 206 from moving in the second direction D2 relative to each other (eg, lateral or lateral) movement or disengagement. That is, once the force acts on the slide rail assembly 200 in the second direction D2 (as shown in FIG. 15 and FIG. 16 ), the portion (eg, the second portion 232 ) of the limiting member 208 is adjacent to the The side L' of the longitudinal wall 224 of the third rail 206 enables the portion of the limiting member 208 (eg, the second portion 232 ) and the side L' of the longitudinal wall 224 of the third rail 206 to be in contact with each other A blocking effect is generated to prevent the second rail 204 and the third rail 206 from moving or disengaging in the second direction D2 (eg, laterally or laterally) relative to each other. The first portion 230 and the second portion 232 of the limiting member 208 together define a space for accommodating at least a part of the first end portion 206 a of the third rail 206 .

Preferably, the first support base 244a has a first groove 246 , and the second support base 244b has a second groove 248 . On the other hand, the first wall 226a of the second rail 204 has a first support leg 250 extending into the first wall The groove 246 is formed, and the second wall 226b of the second rail 204 has a second support leg 252 extending into the second groove 248 . Wherein, when the second rail 204 is at the predetermined position P relative to the third rail 206, the second rail 204 extends into the first groove 246 through the first support leg 250, and the second rail 204 penetrates the second The supporting feet 252 extend into the second groove 248 to prevent the second rail 204 and the third rail 206 from moving or disengaging in the second direction D2 relative to each other (as shown in FIG. 15 and FIG. 16 ).

Based on the above, once the force acts on the slide rail assembly 200 in the second direction D2 (as shown in FIG. 14 , FIG. 15 and FIG. 16 ), even if the second rail 204 is within the range of the first predetermined distance K1 A portion of the first wall 226a and the second wall 226b of the rail segment can be supported by the first support seat 244a and the second support seat 244b, respectively, however, if the force applied is large enough, the The first support leg 250 of the first wall 226a and the second support leg 252 of the second wall 226b may still be moved in the second direction D2 from the first groove 246 of the first support seat 244a and the second support, respectively The second groove 248 of the seat 244b is disengaged, so that the first wall 226a and the second wall 226b of a part of the rail section of the second rail 204 within the range of the first predetermined distance K1 cannot be correctly positioned on the third rail 206 within the channel. Therefore, the embodiment of the present invention provides that the portion (eg, the second portion 232 ) of the limiting member 208 is adjacent to the side L′ of the longitudinal wall 224 of the third rail 206 to prevent the second rail 204 from interacting with the third rail 206 . The third rails 206 move relative to each other in the second direction D2 (as shown in FIG. 15 and FIG. 16 ), that is, the limiting member 208 can be used to secure the first supporting feet 250 of the first wall 226 a of the second rail 204 The second support feet 252 of the second wall 226b are not separated from the first groove 246 of the first support seat 244a and the second support The second groove 248 of the seat 244b is disengaged, so as to ensure that the second rail 204 can be stably installed on the third rail without being affected by the force (or external force) when installed in the channel of the third rail 206 206, so that the slide rail assembly 200 has reliability and safety in use.

FIG. 17 shows the implementation of the second rail 300 according to the third embodiment of the present invention. Specifically, different from the limiting member 108 of the first embodiment described above, an additional component is attached to the second rail 104 , the second rail 300 of this embodiment is directly integrated with the limiting member 302 , that is, The second rail 300 is directly formed with the limiting member 302 .

Although the present invention has been disclosed by the aforementioned preferred embodiments, it is not intended to limit the present invention. Therefore, the scope of protection of the present invention is subject to the scope of the appended claims.

100: Slide rail assembly

102: The first track

104: Second track

106: Third track

108: Limiter

114: Bracket

120: Limit feature

130: Part 1

Claims (20)

A slide rail assembly, comprising: a first rail comprising a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail; a second rail comprising a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the second rail; A third rail is movably installed between the first rail and the second rail, and the second rail and the third rail are displaceable relative to the first rail from a collapsed position along a first direction; and a stopper has a first part and a second part; Wherein, when the second rail and the third rail are in the retracted position relative to the first rail, the first portion of the limiting member is disposed adjacent to the first rail, the second rail and the third rail The front end portion of the stopper, and the second portion of the limiting member is used to prevent the first rail, the second rail and the third rail from being separated from each other in a second direction, the first direction and the second direction are substantially Above is the vertical relationship. The slide rail assembly of claim 1, wherein the first rail is arranged with a bracket, the bracket is fixedly connected to the first rail, the bracket has a limiting feature, and the limiting feature includes an upper portion and a lower portion. and a middle part, the upper part, the lower part and the middle part together define a limit space for the second part of the limiter to extend into and form a limit with the upper part, the lower part and the middle part of the limit feature relation. The slide rail assembly of claim 2, wherein the bracket has an upper support portion, a lower support portion and an intermediate support portion connected between the upper support portion and the lower support portion, and the upper support portion is located at Adjacent to the first wall of the first rail, the lower support portion is located adjacent to the second wall of the first rail, and the middle support portion is located adjacent to the longitudinal wall of the first rail. The slide rail assembly of claim 3, wherein the limiting feature is a notch type. The slide rail assembly of claim 2, wherein the middle portion of the limiting feature is located adjacent to the front end of the first rail, and the upper and lower portions of the limiting feature are located beyond the front end of the first rail Department. The slide rail assembly according to claim 1, wherein the limiting member is fixedly arranged on the second rail. The slide rail assembly of claim 6, wherein the limiting member and the second rail are integrated together. The slide rail assembly of claim 6, wherein the second portion of the limiting member extends substantially vertically from the first portion. The slide rail assembly of claim 6, wherein when the second rail and the third rail are displaced from the retracted position to an extended position relative to the first rail, the limiting member is away from the first rail and the front end of the third rail. The slide rail assembly of claim 1, wherein the slide rail assembly further comprises at least one sliding aid device, and the first rail, the second rail and the third rail are supported relative to each other through the at least one sliding aid device . A slide rail assembly, comprising: a first track; a second track; A third rail is movably mounted between the first rail and the second rail, and the first rail, the second rail and the third rail are longitudinally displaceable relative to each other; and a stopper is arranged on the second rail; Wherein, when the second rail and the third rail are in a predetermined position relative to the first rail, the limiting member can fasten the first rail to prevent the first rail, the second rail and the first rail The three rails are laterally disengaged relative to each other. The slide rail assembly of claim 11, wherein the first rail comprises a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail, the The first wall, the second wall and the longitudinal wall of the first rail together define a channel; the third rail is movably installed in the channel of the first rail, and the third rail includes a first wall, a second wall and a The longitudinal wall is connected between the first wall and the second wall of the third rail, and the first wall, the second wall and the longitudinal wall of the third rail together define a passage; the second rail is movably installed on the third rail track channel. The slide rail assembly of claim 11, wherein the predetermined position is a retracted position. The slide rail assembly of claim 11, wherein the second rail has a first end portion and a second end portion away from the first end portion of the second rail, and the limiting member is located adjacent to the second rail the first end of the second rail. The slide rail assembly of claim 12, wherein the limiting member includes a first portion and a second portion; the first rail is arranged with a bracket, the bracket has a limiting feature, and the limiting feature includes an upper part, a lower part and a middle part, the upper part, the lower part and the middle part together define a limiting space; when the second rail and the third rail are in the predetermined position relative to the first rail, the limiting member The second portion of the limiting feature extends into the limiting space to form a limiting relationship with the upper portion, the lower portion and the middle portion of the limiting feature. The slide rail assembly of claim 15, wherein the bracket has an upper support portion, a lower support portion and an intermediate support portion connected between the upper support portion and the lower support portion, and the upper support portion is located at Adjacent to the first wall of the first rail, the lower support portion is located adjacent to the second wall of the first rail, and the middle support portion is located adjacent to the longitudinal wall of the first rail. The slide rail assembly of claim 15, wherein the second portion of the limiting member extends substantially vertically from the first portion. The slide rail assembly of claim 12, further comprising a first support seat arranged on a first wall adjacent to the third rail, and a second support seat arranged on a second wall adjacent to the third rail; The first support base has a first groove, and the second support base has a second groove; the second rail includes a first wall, a second wall and a longitudinal wall connected to the second rail the first wall with the Between the second walls; the first wall of the second rail has a first support foot extending into the first groove, and the second wall of the second rail has a second support foot extending into the second groove , for preventing the movement of the second rail and the third rail in the lateral direction relative to each other. A slide rail assembly, comprising: a first rail comprising a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the first rail; a second rail comprising a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the second rail; A third rail is movably installed between the first rail and the second rail, and the third rail includes a first wall, a second wall and a longitudinal wall connected between the first wall and the second rail of the third rail between the second wall; and a stopper is arranged on the second rail; Wherein, two slide rails of the first rail, the second rail and the third rail are supported relative to each other through at least one sliding aid device; Wherein, when the second rail and the third rail are at a predetermined position relative to the first rail, there is a predetermined distance between one end of the at least one sliding device and a first end of the first rail, and the A portion of the limiting member is adjacent to one side edge of the longitudinal wall of the first rail. The slide rail assembly of claim 19, wherein the first rail is arranged with a bracket, the bracket has a stop feature, the stop feature includes an upper portion, a lower portion and a middle portion, the upper portion, the lower portion and the The middle part has a total of The same defines a limiting space for the portion of the limiting member to extend into and form a limiting relationship with the upper portion, the lower portion and the middle portion of the limiting feature.

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