TWI737421B - 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 sliding rail, in particular to a reliable sliding rail assembly.

Figure 1 shows a slide rail assembly 10 of the prior art. The slide rail assembly 10 includes a plurality of slide rails. Among them, 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 to assist the longitudinal displacement of the second rail 14 relative to the first rail 12. Furthermore, the slide rail assembly 10 must comply with some standard safety regulations and quality control in order to meet the basic needs of the market. For example, the slide rail assembly 10 usually must undergo a vibration test to verify whether the slide rail of the slide rail assembly 10 is durable and can carry a load of a specific weight (such as a server or a drawer, etc.). Wherein, when the slide rail assembly 10 is subjected to the vibration test (Figure 1 only shows that a force F is applied to the slide rail assembly 10 for illustration), if the slide rail assembly 10 receives the force F, the slide rails will interact with each other. If there is separation or bending, it means that the safety and quality of the slide rail assembly 10 are doubtful. Figure 1 shows that after the slide rail assembly 10 receives the force F, part of the second rail 14 has a lateral (or lateral) detachment or bending phenomenon relative to the first rail 12, which will cause the second rail 14 to fail. Can be correctly installed in the channel 16 of the first rail 12, and the second rail 14 cannot be 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 invention relates to a reliable sliding rail assembly.

According to one aspect of the present invention, a sliding 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 It can move in a first direction from a folded position relative to the first rail; 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 part of the stopper is located adjacent to the front end of the first rail, the second rail and the third rail, and the second part of the stopper 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 substantially in a vertical relationship.

Preferably, 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 part, a lower part and a middle part, the upper part, the lower part and the The middle part jointly defines a limiting space for the second part of the limiting member to extend and enter to form a limiting relationship with the upper part, the lower part of the limiting feature, and the middle part.

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 is located on the first wall adjacent to the first rail The lower support portion is located on the second wall adjacent to the first rail, and the middle support portion is located on the longitudinal wall adjacent to the first rail.

Preferably, the limiting feature is a notch type.

Preferably, 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.

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

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

Preferably, the second part of the limiting member extends substantially perpendicularly from the first part.

Preferably, when the second rail and the third rail are displaced from the folded position to an extended position relative to the first rail, the limiting member is far 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 relatively supported by each other through the at least one sliding aid device.

According to another aspect of the present invention, a sliding 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 can be longitudinally displaced relative to each other; the limiting member 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 third rails are separated from each other laterally.

Preferably, 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, and the first wall and the second wall of the first rail The wall and the longitudinal wall jointly 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 rail of the third rail. Between a wall and a second wall, the first wall, the second wall and the longitudinal wall of the third rail jointly define a channel; the second rail is movably installed in the channel of the third rail.

Preferably, the predetermined position is a folded 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 at the first end adjacent to the second rail.

Preferably, the limiting member includes a first part and a second part; 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 jointly define a limiting space; when the second rail and the third rail are in the predetermined position relative to the first rail, the second part of the limiting member extends into the limiting space And it forms a limit relationship with the upper part, the lower part and the middle part of the limit 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 supporting portion is located on a first wall adjacent to the first rail, the lower supporting portion is located on a second wall adjacent to the first rail, and the intermediate supporting portion is located on a longitudinal wall adjacent to the first rail.

Preferably, the second part of the limiting member extends substantially perpendicularly from the first part.

Preferably, the slide rail assembly further includes 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 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 supporting leg extending into the first groove, and the second wall of the second rail has a second supporting leg extending into the second The groove is used to prevent the second rail from moving in the lateral direction.

According to another aspect of the present invention, a sliding 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 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 limiting member is arranged on the second rail; wherein, the first rail, the second rail and the Two of the slide rails of the third rail support each other through at least one sliding assist device; wherein, when the second rail and the third rail are at a predetermined position relative to the first rail In the position, there is a predetermined distance between one end of the at least one sliding-assisting device and a first end of the first rail, and a part of the limiting member is adjacent to one side of the longitudinal wall of the first rail.

[Literature Technology]

10: Slide rail assembly

12: The first track

14: Second track

16: channel

18: Sliding aid

F: Strength

[Example of this case]

100,200: Slide rail assembly

102,202: the first track

102a: first end

102b: second end

104,204,300: second track

104a, 204a: first end

104b: second end

106,206: third track

106a, 206a: first end

106b: second end

108,208,302: limit piece

110a: The first wall

110b: second wall

112: Longitudinal Wall

114: Bracket

116a: Upper support part

116b: Lower support part

118: Intermediate support

120: Limit feature

120a: upper part

120b: lower part

120c: middle part

122a: The first wall

122b: second wall

124,224: Longitudinal walls

126a: The first wall

126b: The second wall

128: Longitudinal wall

130,230: The first part

132,232: The second part

134a, 234a: the first bead

134b, 234b: the second bead

136: Rolling pieces

138,238: First slip aid device

140,240: second slip aid device

142a: The first ball

142b: The second ball

144a, 244a: the first support seat

144b: second support base

145: first gear

146,246: The 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: second predetermined distance

L,L’: side

P: Predetermined location

S: limit space

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

2 shows a schematic diagram of a combination of a first rail, a second rail, and a third rail in the slide rail assembly according to the first embodiment of the present invention;

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

4 shows a partial schematic diagram of the second rail of the sliding rail assembly of the first embodiment of the present invention;

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

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

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

FIG. 8 shows a partial three-dimensional schematic diagram of the slide rail assembly in the folded state of the first embodiment of the present invention from a first perspective; FIG.

9 shows a partial three-dimensional schematic diagram of the slide rail assembly in the folded state of the first embodiment of the present invention from a second perspective;

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

Figure 11 shows an exploded schematic view of the slide rail assembly of the second embodiment of the present invention;

12 shows a partial schematic diagram of the second rail of the sliding 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;

14 shows a schematic diagram of the slide rail assembly in a folded state according to the second embodiment of the present invention;

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

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

Fig. 17 shows a partial schematic diagram of the second track of the third embodiment of the present invention.

As shown in FIGS. 2 and 3, a sliding 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 installed between the first rail 102 and the second rail 104. The first rail 102, the second rail 104, and the third rail 106 can be longitudinally displaced 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 length direction or the displacement direction of the slide rail), the Y-axis direction is the transverse direction (or the lateral direction of the slide rail), and the Z-axis direction is the vertical direction ( Or the height direction of the slide 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 jointly define a passage. Wherein, the first rail 102 is arranged with a bracket 114, and the bracket 114 is connected (for example, 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 regarded as one body. The first rail 102 has a first end 102a and a second end 102b away from the The first end 102a, the first end 102a and the second end 102b are, for example, a front end and a rear end, 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 on the second wall 110b adjacent to the first rail 102, and the middle support portion 118 is located on the longitudinal wall 112 adjacent to 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 portion 120a, the lower portion 120b, and the middle portion 120c jointly 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 102a (for example, 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 end 102a. The first end 102a (for example, the front end) of a rail 102.

The third rail 106 is movably installed in 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 jointly define a passage. 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. The implementation is not limited.

The second rail 104 is movably installed in the channel of the third rail 106. The second rail 104 includes a first wall 126 a, a second wall 126 b, and a longitudinal wall 128 connected between the first wall 126 a and the second wall 126 b 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. The implementation is not limited.

Preferably, the sliding rail assembly 100 further includes at least one sliding aid device, and the first rail 102, the second rail 104 and the third rail 106 are relatively supported by each other through the at least one sliding aid device. For example, the sliding rail assembly 20 includes at least one sliding aid device to facilitate the smoothness of the relative displacement of the first rail 102 with respect to the third rail 106. Here, the at least one sliding aid device uses a first bead strip. 134a and a second bead strip 134b are located in the channel of the first rail 102, and both the first bead strip 134a and the second bead strip 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 taken as examples, but they are not limited in implementation. On the other hand, the slide rail assembly 20 further includes at least another slide-assisting 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-assisting device is As an example, a first sliding assistance device 138 and a second sliding assistance device 140 are movably installed in the channel of the third rail 106, where the first sliding assistance device 138 and the second sliding assistance device 140 can be used separately To support the rail sections at different positions of the second rail 104, and the first sliding aid device 138 and the second sliding aid device 140 both include a plurality of first balls 142a and a plurality of second balls 142b (this part can also be matched Refer to Figure 6), the first sliding aid 138 and the second The first balls 142a of the sliding assistance 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 assistance device 138 and the second sliding assistance device 138 are supported by the first wall 122a of the second rail 104. The second balls 142 b of the device 140 are supported between the second wall 122 b of the third rail 106 and the second wall 126 b 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 perpendicularly from the first portion 130. Preferably, the limiting member 108 is located at the first end 104a adjacent to the second rail 104 as an example, but it is not limited in implementation.

As shown in FIGS. 6 and 7, the second rail 104 and the third rail 106 can be at a predetermined position P (for example, a folded position, as shown in FIG. 6) relative to the first rail 102. Wherein, the first rail 102 and the third rail 106 are relatively supported by each other through the at least one sliding aid device (for example, the first bead 134a and the second bead 134b); on the other hand, the third rail 106 and the first bead The two rails 104 support each other through the at least another sliding assistance device (for example, the first sliding assistance device 138 and the second sliding assistance device 140). Wherein, when the second rail 104 and the third rail 106 are at 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 aid device (for example, the first bead 134a and the second bead 134b) (E.g., the front end) and the first end 102a of the first rail 102 have a second predetermined distance K2 (as shown in FIG. 6 Show).

Furthermore, 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 (for example, longitudinally) to a first extension position E1 and a second extension position E1 In the extended position E2 (as shown in FIG. 7), the limiting member 108 is far away from the front ends 102a, 106a of the first rail 102 and the third rail 106, and the at least another sliding aid device (for example, the first sliding aid The device 138) and the at least one slip-aiding device (for example, the first bead strip 134a and the second bead strip 134b) are also displaced in the first direction D1 toward the first end 106a and the first end 106a of the third rail 106, respectively. The first end 102a of the rail 102 is close.

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 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 are located in the passage of the third rail 106 As an example, the slide rail assembly further includes two first blocking portions 145 (for example, two front blocking portions) respectively arranged on the first wall 110a and the second wall 110b of the adjacent first rail 102, where Take the two first stoppers 145 close to the first end 102a of the first rail 102 and located at the passage opening of the passage of the first rail 102 as an example. When the second rail 104 and the third rail 106 are displaced in the first direction D1 relative to the first rail 102 to the first extension position E1 and the second extension position E2 (as shown in FIG. 7), the At least another sliding aid device (for example, the first sliding aid device 138) is blocked by the first support seat 144a and the second support seat 144b of the third rail 106, and the One less sliding aid (for example, the first bead strip 134a and the second bead strip 134b) is blocked by the two first blocking portions 145 of the first rail 102.

As shown in FIGS. 6, 8 and 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 same position. Adjacent to the first end 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 second rail A rail 102, the second rail 104, and the third rail 106 are separated from each other in a second direction D2 (for example, laterally or laterally), and the first direction D1 and the second direction D2 are in a substantially vertical relationship .

Preferably, when the second rail 104 and the third rail 106 are at 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 extends in, 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 FIGS. 8 and 9) .

Preferably, when the second rail 104 and the third rail 106 are at the predetermined position P relative to the first rail 102, the first end of the at least another sliding aid device (for example, the first sliding aid device 138) (For example, the front end) and the first end 106a of the third rail 106 have the first predetermined distance K1 (as shown in FIG. There is the second predetermined distance K2 between the first end (for example, the front end) of the bead 134b) and the first end 102a of the first rail 102 (as shown in FIG. 6). That is, the rail section of the second rail 104 within the first predetermined distance K1 cannot be used by the at least another sliding assistance device (for example, the first A sliding assistance device 138 and the second sliding assistance 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 assistance device (for example, the first bead strip 134a and the first bead strip 134a). The second bead strip 134b) is supported. At this time, if a force (or an external force) is applied to the slide rail assembly 100, the first rail 102, the second rail 104 and the The rail sections of the third rail 106 may not be effectively supported by each other as a result, and may be affected by the force (or external force), resulting in the first rail 102, the second rail 104 and the third rail The track sections of 106 are separated from each other. Therefore, in this embodiment, a portion (for example, the second portion 132) of the limiting member 108 adjacent to the side L of the longitudinal wall 112 of the first rail 102 (or the middle of the bracket 114 of the first rail 102) can pass through. The side L of the supporting portion 118, for example, the position of the limiting member 108 (for example, the second portion 132) can buckle the side L of the longitudinal wall 112 of the first rail 102 (or buckle the first rail The side L of the middle support portion 118 of the bracket 114 of 102, as shown in FIGS. 8 and 9), is used to prevent the first rail 102, the second rail 104, and the third rail 106 from moving toward the second rail relative to each other. Move or detach in direction D2 (for example, laterally or laterally). That is, once the force acts on the slide rail assembly 100 in the second direction D2 (as shown in 8 and 9), the portion (for example, 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 intermediate support portion 118 of the bracket 114 adjacent to the first rail 102) makes the position 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 intermediate support portion 118 of the bracket 114 of the first rail 102) can contact 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 (for example, laterally or laterally) moves or disengages. Wherein, the first part 130 and the second part 132 of the limiting member 108 jointly define a space for accommodating at least a part of the first end 102a of the first rail 102 (or the middle part 120c of the bracket 114) and the second At least a part of the first end 106a of the three rail 106 (as shown in FIGS. 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 extending into the first groove 146, and the second wall 126b of the second rail 104 has a second supporting leg 152 extending into The second groove 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 foot 150, and the second rail 104 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 detaching in the second direction D2 relative to each other (as shown in FIG. 8) .

In view of the above, once the force acts on the slide rail assembly 100 in the second direction D2 (as shown in FIGS. 8 and 9), even if the second rail 104 is within the rail section within the first predetermined distance K1 A part of the first wall 126a and the second wall 126b can be respectively supported by the first support seat 144a and the second support seat 144b. However, if the applied force is large enough, the first wall of the second rail 104 The first supporting leg 150 of the 126a and the second supporting leg 152 of the second wall 126b may still move in the second direction D2 respectively from the first groove 146 of the first supporting base 144a and the The second groove 148 of the second support seat 144b breaks away, causing the first wall 126a and the second wall 126b of a part of the rail section of the second rail 104 within the first predetermined distance K1 to fail to be located correctly on the first wall 126a and 126b. In the channel of the three rails 106, therefore, the embodiment of the present invention provides that the position of the limiting member 108 (for example, the second portion 132) 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 and the second supporting leg 152 of the second wall 126b of the second rail 104 will not separate from the first groove of the first supporting seat 144a. 146 is separated from the second groove 148 of the second support seat 144b, so that it can be ensured that the second rail 104 will not be affected by the force (or external force) when installed in the channel of the third rail 106. It is installed in the channel of the third rail 106 to make 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 installed 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 perpendicularly from the first portion 230. Preferably, the limiting member 208 is located adjacent to the first end of the second rail 204 Take 204a as an example, but it is not limited in implementation.

As shown in FIG. 14, the second rail 204 and the third rail 206 can be at the predetermined position P (for example, a folded position) relative to the first rail 202. Wherein, the first rail 202 and the third rail 206 are relatively supported by 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 first The two rails 204 support each other through the at least another sliding assistance device (for example, the first sliding assistance device 238 and the second sliding assistance 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 (for example, the front end) of the at least another sliding aid device (for example, the first sliding aid device 238) There is a first predetermined distance K1 between) and the first end 206a of the third rail 206.

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 portions (front end portions) 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 toward the first The two directions D2 (for example, laterally or laterally, as shown in FIGS. 15 and 16) are separated. 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 (for example, the front end) of the at least another sliding aid device (for example, the first sliding aid device 238) and the There is the first predetermined distance K1 between the first ends 206a of the third rail 206 (as shown in FIG. 6). That is, the second track 204 is in the The rail section within the first predetermined distance K1 cannot be supported by the at least another sliding assistance device (for example, the first sliding assistance device 238 and the second sliding assistance device 240). At this time, if the slide rail assembly 200 accepts When a force (or an external force) is applied, 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 by each other as a result. The influence of the force (or external force) causes the rail sections of the second rail 204 and the third rail 206 to separate from each other. Therefore, in this embodiment, a part (for example, the second portion 232) of the limiting member 208 is adjacent to one side L'of the longitudinal wall 224 of the third rail 206, for example, the position of the limiting member 208 (E.g., 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 toward the second direction D2 (e.g., Lateral or lateral) movement or detachment. That is, once the force acts on the slide rail assembly 200 in the second direction D2 (as shown in 15 and 16), the position of the limiting member 208 (for example, the second portion 232) is adjacent to the The side L'of the longitudinal wall 224 of the third rail 206 enables the position of the limiting member 208 (for example, 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 separating relative to each other in the second direction D2 (for example, laterally or laterally). The first part 230 and the second part 232 of the limiting member 208 jointly define a space for accommodating at least a part of the first end 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 supporting leg 250 extending into the first There is a groove 246, and the second wall 226b of the second rail 204 has a second supporting 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 through the first supporting leg 250 into the first groove 246, and the second rail 204 passes through the second The supporting leg 252 extends into the second groove 248 to prevent the second rail 204 and the third rail 206 from moving or detaching relative to each other in the second direction D2 (as shown in FIGS. 15 and 16).

In view of the above, once the force acts on the slide rail assembly 200 in the second direction D2 (as shown in FIGS. 14, 15 and 16), even if the second rail 204 is within the range of the first predetermined distance K1 The first wall 226a and the second wall 226b of a part of the rail section can be supported by the first support seat 244a and the second support seat 244b, respectively. However, if the applied force is large enough, the second rail 204 The first supporting leg 250 of the first wall 226a and the second supporting leg 252 of the second wall 226b may still move in the second direction D2 from the first groove 246 of the first support base 244a and the second support, respectively. The second groove 248 of the seat 244b breaks away, causing the first wall 226a and the second wall 226b of a part of the rail section of the second rail 204 within the first predetermined distance K1 to fail to be correctly located on the third rail 206 In the channel. Therefore, the embodiment of the present invention provides that the position of the limiting member 208 (for example, the second portion 232) is adjacent to the side L'of the longitudinal wall 224 of the third rail 206, which can be used to prevent the second rail 204 from contacting the The third rail 206 moves relative to each other in the second direction D2 (as shown in FIGS. 15 and 16), that is, the limiting member 208 can be used to ensure the first supporting leg 250 of the first wall 226a of the second rail 204 And the second supporting leg 252 of the second wall 226b will not separate from the first groove 246 of the first supporting seat 244a and the second supporting The second groove 248 of the seat 244b is disengaged, so that it can be ensured that the second rail 204 will not be affected by the force (or external force) when installed in the passage of the third rail 206 and can be stably installed on the third rail. In the channel 206, the slide rail assembly 200 is reliable and safe in use.

FIG. 17 shows the implementation type of the second rail 300 according to the third embodiment of the present invention. Specifically, different from the above-mentioned first embodiment, the limiting member 108 is an additional component attached to the second rail 104. The second rail 300 of this embodiment directly integrates 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 in the foregoing 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 attached patent application.

100: Slide rail assembly

102: The first track

104: second track

106: The third track

108: limit piece

114: Bracket

120: Limit feature

130: Part One

Claims (17)

A slide rail assembly comprising: a first rail including 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 including a first wall A wall, a second wall and a longitudinal wall are 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 The second rail and the third rail are movable relative to the first rail from a folded position in a first direction; and a limiting member has a first part and a second part; wherein, when the second rail and the When the third rail is in the folded position relative to the first rail, the first part of the limiting member is disposed at the front end of the adjacent first rail, the second rail, and the third rail, and the limit The second part of the piece is used to prevent the first rail, the second rail, and the third rail from detaching from each other in a second direction, and the first direction and the second direction are in a substantially vertical relationship; wherein, The first rail is arranged with a bracket, the bracket is fixedly connected to the first rail, the bracket has a limiting feature, the limiting feature includes an upper part, a lower part and a middle part, the upper part, the lower part and the middle part are common A limit space is defined for the second part of the limit member to extend and enter to form a limit relationship with the upper part, the lower part and the middle part of the limit feature. The slide rail assembly according to claim 1, wherein the bracket has an upper support portion, a lower support portion, and an intermediate support portion connected to the upper support Between the upper support portion and the lower support portion, and the upper support portion is located at the first wall adjacent to the first rail, the lower support portion is located at the second wall adjacent to the first rail, and the intermediate support portion is located adjacent to the The longitudinal wall of the first rail. The slide rail assembly according to claim 2, wherein the limit feature is a notch type. The slide rail assembly according to claim 1, 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 sliding rail assembly according to claim 1, wherein the limiting member is fixedly arranged on the second rail. The sliding rail assembly according to claim 5, wherein the limiting member and the second rail are integrated. A slide rail assembly comprising: a first rail including 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 including a first wall A wall, a second wall and a longitudinal wall are 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 The second rail and the third rail are movable relative to the first rail from a folded position in a first direction; and a limiting member has a first part and a second part; Wherein, when the second rail and the third rail are in the folded position relative to the first rail, the first part of the limiting member is disposed adjacent to the first rail, the second rail and the third rail The front end 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 The above is a vertical relationship; wherein, the limiting member is fixedly arranged on the second rail; wherein, the second part of the limiting member substantially extends vertically from the first part. A slide rail assembly comprising: a first rail including 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 including a first wall A wall, a second wall and a longitudinal wall are 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 The second rail and the third rail are movable relative to the first rail from a folded position in a first direction; and a limiting member has a first part and a second part; wherein, when the second rail and the When the third rail is in the folded position relative to the first rail, the first part of the limiting member is disposed at the front end of the adjacent first rail, the second rail, and the third rail, and the limit The second part of the piece is used to prevent the first rail, the second rail, and the third rail from detaching from each other in a second direction, and the first direction and the second direction are substantially in a vertical relationship; Wherein, the limiting member is fixedly disposed on the second rail; wherein, when the second rail and the third rail are displaced from the folded position to an extended position relative to the first rail, the limiting member is far away The front ends of the first rail and the third rail. The slide rail assembly according to claim 1, wherein the slide rail assembly further includes at least one sliding aid device, and the first rail, the second rail and the third rail are relatively supported by each other through the at least one sliding aid device . A slide rail assembly, comprising: a first rail; a second rail; a third rail movably installed between the first rail and the second rail, and the first rail, the second rail and the The third rail can be displaced in a longitudinal direction relative to each other; and a limiting member is arranged on the second rail; wherein, when the second rail and the third rail are at a predetermined position relative to the first rail, the limiting member The first rail can be buckled to prevent the first rail, the second rail, and the third rail from detaching from each other in a transverse direction, and the transverse direction and the longitudinal direction are in a substantially vertical relationship; wherein, the second rail It 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 at the first end portion adjacent to the second rail. The slide rail assembly according to claim 10, wherein 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 The first wall, the second wall and the longitudinal wall of the first rail jointly 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. The first wall, the second wall and the longitudinal wall of the third rail jointly define a channel; the second rail is movably installed on the third rail. The channel of the rail. The slide rail assembly according to claim 10, wherein the predetermined position is a folded position. A slide rail assembly, comprising: a first rail; a second rail; a third rail movably installed between the first rail and the second rail, and the first rail, the second rail and the The third rail can be displaced in a longitudinal direction relative to each other; and a limiting member is arranged on the second rail; wherein, when the second rail and the third rail are at a predetermined position relative to the first rail, the limiting member The first rail can be buckled to prevent the first rail, the second rail, and the third rail from detaching from each other in a lateral direction, and the lateral direction and the longitudinal direction are in a substantially vertical relationship; Wherein, 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, and the first wall, the second wall and the The longitudinal walls jointly 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 the second wall and the first wall, the second wall and the longitudinal wall of the third rail jointly define a channel; the second rail is movably installed in the channel of the third rail; wherein, the limiting member includes a The first part and the second part; the first rail is arranged with a bracket, the bracket has a limiting feature, the limiting feature includes an upper part, a lower part and a middle part, the upper part, the lower part and the middle part jointly define A limiting space; when the second rail and the third rail are in the predetermined position relative to the first rail, the second part of the limiting member extends into the limiting space and is connected to the upper and lower portions of the limiting feature It forms a limit relationship with the middle part. The slide rail assembly according to claim 13, 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 Adjacent to the first wall of the first rail, the lower support portion is located on the second wall adjacent to the first rail, and the middle support portion is located on the longitudinal wall adjacent to the first rail. The slide rail assembly according to claim 13, wherein the second part of the limiting member extends substantially perpendicularly from the first part. A slide rail assembly, including: a first rail; A second rail; a third rail movably installed between the first rail and the second rail, and the first rail, the second rail, and the third rail can be longitudinally displaced relative to each other; and a The limiting member is arranged on the second rail; wherein, when the second rail and the third rail are at a predetermined position relative to the first rail, the limiting member can buckle the first rail to prevent the second rail A rail, the second rail, and the third rail are separated from each other in a lateral direction, and the lateral direction and the longitudinal direction are substantially in a vertical relationship; wherein, the first rail includes a first wall, a second wall, and a longitudinal direction. The wall is connected between the first wall and the second wall of the first rail. The first wall, the second wall and the longitudinal wall of the first rail jointly define a channel; the third rail is movably installed on the first rail The third rail includes a first wall, a second wall and a longitudinal wall connected between the first wall and the second wall of the third rail, the first wall and the second wall of the third rail A channel is defined together with the longitudinal wall; the second rail is movably installed on the channel of the third rail; wherein, the slide rail assembly further includes a first support seat arranged on the first wall of the adjacent third rail, and A second support seat is arranged on the second wall adjacent to the third rail; the first support seat has a first groove, and the second support seat has a second groove; the second rail includes a first A wall, a second wall and a longitudinal wall are connected between the first wall and the second wall of the second rail; the first wall of the second rail has a first supporting leg extending into the first groove , And the first The second wall of the two rails has a second supporting leg extending into the second groove to prevent the second rail and the third rail from moving in the lateral direction relative to each other. A slide rail assembly comprising: a first rail including 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 including a first wall A wall, a second wall and a longitudinal wall are 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 The third rail includes a first wall, a second wall, and a longitudinal wall connected between the first wall and the second wall of the third rail; and a limiting member is arranged on the second rail; wherein, the first wall Two slide rails of a rail, the second rail and the third rail are supported by at least one sliding assist 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 slip-assisting device and a first end of the first rail, and a position of the limiting member is adjacent to one side of the longitudinal wall of the first rail; wherein, The first rail is arranged with a bracket. The bracket has a limiting feature. The limiting feature includes an upper part, a lower part and a middle part. The upper part, the lower part and the middle part jointly define a limiting space for the The position of the limiting member extends in to form a limiting relationship with the upper part, the lower part and the middle part of the limiting feature.

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