CN104720392B - Sliding rail assembly - Google Patents

Abstract

The present invention relates to a slide rail assembly, which includes a fixed rail, a drawer slide rail and at least one positioning mechanism. The fixed rail has a first longitudinally extending body. The drawer slide rail is longitudinally movable relative to the fixed rail, and the drawer slide rail has a second longitudinally extending body. At least one of the first longitudinally extending body and the second longitudinally extending body is provided with an opening. The at least one positioning mechanism includes a support member and a buckle, the support member has a fixed portion and an elastic arm connected to the fixed portion, the fixed portion is fixedly connected to at least one of the first longitudinally extending body and the second longitudinally extending body, and the buckle (dowel) is connected to the elastic arm of the support member and corresponds to the opening.

Description

Slide rail assembly

technical field

The invention relates to a slide rail assembly, in particular to a slide rail assembly that can be quickly installed between a cabinet body and a drawer.

Background technique

The U.S. patent U.S.5,457,867 disclosed by Maberry et al. discloses a slide rail assembly using rollers (rollers24,40) as a sliding medium, including a cabinet member (cabinet member14) and a drawer member (drawer member38) The cabinet member (cabinet member 14) is slidably connected. When assembling, use a pair of bushings (bushings16, 18) and a pair of screws (screws20A, 20B) to lock the cabinet member (cabinet member14) to a cabinet wall (cabinet panel12) for positioning, and match the drawer member ( drawer member38) is locked on one side of a drawer (drawer36). Thereby, the drawer (drawer36) can be slidably connected to the cabinet member (cabinet member14) by means of the drawer member (drawer member38), so that the drawer (drawer36) is easy to slide and displace relative to the cabinet panel (cabinet panel12).

The slide rail assembly in the form of rollers (rollers24,40) disclosed by Maberry et al. can tolerate relatively large assembly tolerances for drawers (drawer36) and cabinet panels (cabinet panel12). Therefore, for furniture manufacturers, The assembly precision of the production drawer (drawer36) and cabinet panel (cabinet panel12) does not have to be as precise as the industry, so this slide rail assembly in the form of rollers (rollers24,40) is widely used in the furniture industry . However, the slide rail assembly in the form of rollers has a limit on the load capacity, and because of tolerance factors, it is not easy to design such a slide rail assembly combined with soft-closing or push-to-open ( push-open) and other functions to increase its added value.

The U.S. patent U.S.5,895,101 disclosed by Cabrales et al. discloses a slide rail assembly using ball bearings as a sliding medium. Due to the advantages of high precision and relatively high load-bearing capacity of this ball bearing slide rail, it is gradually Favored by consumers. Furthermore, this steel ball slide rail can also choose to add a soft-closing function, as disclosed by Kim et al. in the US patent U.S. 6,712,435B2. However, due to the high precision of the steel ball slide rail, when the assembly tolerance between the drawers and cabinets produced by the furniture manufacturer exceeds the allowable tolerance of the steel ball slide rail, the steel ball slide rail will be squeezed between the drawer and the cabinet , On the contrary, it will cause the sliding displacement of the drawer to be unsmooth.

The U.S. patent publication U.S.2013/0106271A1 disclosed by Anderson et al. discloses a steel ball slide rail comprising at least one fixed member (fixed member 56 ) fixed laterally on a drawer slide rail, and at least one floating member (floating member54) slides on the fixed member (fixed member56) laterally. With such a design, the steel ball slide rail also allows a larger assembly tolerance between the drawer and the cabinet.

However, in the aforementioned design disclosed by Anderson et al., once the quality of the floating member (floating member54) itself is poor, for example, the tolerance is too large or damaged, the floating member (floating member54) may fall off from the fixed member (fixedmember56). , and, once the floating member (floating member 54) falls off from the fixed member (fixed member 56), the installation position of the whole group of steel ball slide rails loses the original allowable large assembly tolerance between drawers and cabinets.

Contents of the invention

The object of the present invention is to provide a slide rail assembly to achieve:

It can make up for the assembly tolerance generated between the cabinet body and the drawer to ensure the smoothness of the sliding displacement of the drawer.

The slide rail assembly according to one aspect of the present invention includes a fixed rail, a drawer slide rail, and at least one positioning mechanism, the fixed rail has a first longitudinally extending body, and the drawer slide rail is opposite to the fixed rail. It can move and displace longitudinally. The drawer slide rail has a second longitudinally extending body. At least one of the first longitudinally extending body and the second longitudinally extending body is provided with an opening. The feature is: the at least one positioning mechanism It includes a support piece and a fastener, the support piece has a fixing portion and an elastic arm connected to the fixing portion, the fixing portion is fixedly connected to at least one of the first longitudinally extending body and the second longitudinally extending body, the A fastener (dowel) is connected to the elastic arm of the support and corresponds to the opening.

Wherein, a fixing part is also included to transversely pass through the elastic arm of the supporting part and fixedly connect with the buckle (dowel).

Wherein, at least a part of the elastic arm is located in the opening, so that the at least a part of the elastic arm is contacted and supported by the inner wall of the opening.

Wherein, at least a part of the elastic arm is located in the opening, and the elastic arm has a bent portion. inner wall.

Wherein, it also includes a ball nest seat containing a plurality of balls located between the fixed rail and the drawer slide rail, so that the drawer slide rail is easy to slide and displace relative to the fixed rail by means of the ball nest seat.

Among them, a middle rail is slidably connected between the fixed rail and the drawer slide rail; a first ball nest seat includes a plurality of balls located between the fixed rail and the drawer slide rail, so that the middle rail is opposite to the drawer slide rail. The fixed rail is easy to slide and displace by means of the first ball nest seat; and a second ball nest seat includes a plurality of balls located between the drawer slide rail and the middle rail, so that the drawer slide rail is relatively to the middle rail by the second ball The nest seat is easy to slide and move.

Wherein, the fixed rail has an end; and a base has a slot and at least one tenon, wherein, the slot of the base is used for inserting the end of the fixed rail.

Description of drawings

To further illustrate and confirm the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

FIG. 1 is an exploded schematic diagram of a slide rail assembly according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of the slide rail assembly according to the first embodiment of the present invention.

FIG. 3 is a schematic cross-sectional view along line A-A of FIG. 2 .

Fig. 4 is a schematic top view of the first embodiment of the present invention.

Fig. 5 is a side sectional view of the first embodiment of the present invention.

Fig. 6 is a schematic diagram of the use of the slide rail assembly assembled between the drawer and the cabinet according to the first embodiment of the present invention.

Fig. 7 is a schematic perspective view of the second embodiment of the present invention.

Fig. 8a is a schematic perspective view of a third embodiment of the present invention.

Fig. 8b is a schematic plan view of a third embodiment of the present invention.

Fig. 9 is a side view of the slide rail assembly of the fourth embodiment of the present invention.

Fig. 10 is an exploded schematic diagram of a fifth embodiment of the present invention.

detailed description

As shown in FIGS. 1 and 2 , the slide rail assembly according to the first embodiment of the present invention includes: a fixed rail 10 , a drawer slide rail 12 , and at least one positioning mechanism 14 . The fixed rail 10 has a first longitudinally extending body 16, the first longitudinally extending body 16 includes a first wall 18, a second wall 20 opposite to the first wall 18; and a side wall 22 connected to the first wall 18 and the second wall 20 , wherein the side wall 22 , the first wall 18 and the second wall 20 jointly define a channel 24 . The drawer slide 12 is slidably connected to the channel 24 of the fixed rail 10 , the drawer slide 12 has a second longitudinally extending body 26 , and the second longitudinally extending body 26 includes two side walls 28 , 30 and a middle wall 32 The pair of side walls 28 and 30 are connected so that the drawer slide rail 12 can move longitudinally relative to the fixed rail 10 . Preferably, the fixed rail 10 has an end 34; the slide rail assembly also includes a base 36 having a slot 38 and at least one tenon 40, wherein the slot 38 of the base 36 is used for the fixing The end 34 of the rail 10 is inserted, so that the slide rail assembly can be fixed to a cabinet (not shown in the figure) by the tenon 40 of the base 36 .

As shown in Figure 3, it also includes a ball nest 42 containing a plurality of balls 44, the ball nest 42 is located between the fixed rail 10 and the drawer slide 12, so that the drawer slide 12 relative to the fixed rail 10 The ball nest seat 42 is easy to slide and displace, which is a two-section steel ball slide rail assembly. In the first embodiment, the side wall 22 of the first longitudinally extending body 16 of the fixing rail 10 and the middle wall 32 of the second longitudinally extending body 26 of the drawer slide rail 12 are both provided with at least one opening 46, and Both the side wall 22 of the first longitudinally extending body 16 and the middle wall 32 of the second longitudinally extending body 26 are equipped with at least one positioning mechanism 14, and the at least one positioning mechanism 14 includes a support member 48 and a fastener (dowel) 50 .

As shown in FIGS. 4 and 5 , each support member 48 has a fixing portion 52 and an elastic arm 54 connected to the fixing portion 52, and each fixing portion 52 is respectively fixedly connected to the first longitudinally extending body 16 and The second longitudinally extending body 26 . More specifically, the fixed connection of the fixing portion 52 can be accomplished by means of riveting, stamping or other similar means. At least a part of the elastic arm 54 is located in the opening 46 , so that at least a part of the elastic arm 54 is supported by the inner wall of the opening 46 . More specifically, the end of the elastic arm 54 has a bent portion 56, so that the elastic arm 54 is stressed and when the opening 46 is elastically displaced, the bent portion 56 can be against the opening 46. inner wall. The dowel 50 is connected to the elastic arm 54 of the supporting member 48 and corresponds to the aforementioned opening 46 . Preferably, the aforementioned positioning mechanism 14 further includes a fixing member 58 extending laterally from the elastic arm 54 of the supporting member 48 and fixedly connected to the dowel 50 . More specifically, the fixing means of the fixing part 58 and the buckle (dowel) 50 can be accomplished by means of riveting, screw locking or other similar means.

It should be noted that, in the figure, it is disclosed that the first longitudinally extending body 16 and the second longitudinally extending body 26 are equipped with at least one positioning mechanism 14, but it is not limited thereto, and can also be installed only on the first longitudinally extending body. The main purpose of the main body 16 or the second longitudinally extending body 26 is to make the dowel 50 movable and displaceable in the transverse direction relative to the slide rail assembly.

As shown in FIG. 6 , the slide rail assembly of the first embodiment of the present invention uses the fastener (dowel) 50 of the positioning mechanism 14 of the fixed rail 10 and the fastener (dowel) 50 of the positioning mechanism 14 of the drawer slide rail 12 respectively A schematic diagram of assembly between a drawer 60 and a cabinet 62 . When an assembly tolerance occurs between the drawer 60 and the cabinet body 62, since the fasteners (dowel) 50 of the aforementioned positioning mechanism 14 are elastic arms 54 connected to the support member 48, these fasteners (dowel) 50 can be used The elastic arm 54 is movable laterally, providing a displacement d to compensate for the assembly tolerance. In addition, because the fastener (dowel) 50 is actually fixedly integrated with the fixing member 58, it has better structural strength, so it can prevent the fastener (dowel) 50 from being poor in quality and under load. , fall off from the supporting member 48 due to deformation and damage. In this way, it is ensured that the installation position of the slide rail assembly allows an assembly tolerance, so that the balls 44 of the ball nest seat 42 can maintain a smooth rolling displacement.

As shown in FIG. 7, in the second embodiment of the present invention, the fixing portion 52a of the support member 48a and the second longitudinally extending body 26a of the drawer slide rail 12a can be individual separate components, and then the support is connected by means of riveting. Member 48a is securely connected to the second longitudinally extending body 26a of the drawer slide 12 .

As shown in Figure 8a and Figure 8b, in the third embodiment of the present invention, the elastic arm 54a of the drawer slide rail 12b is located in the opening 46a, and the shape of the inner wall of the opening 46a corresponds to the elastic arm 54a, Therefore, when the elastic arm 54a is elastically displaced in the opening 46a, the inner wall of the opening 46a can provide a larger contact support for the elastic arm 54a.

As shown in Figure 9, the slide rail assembly of the fourth embodiment of the present invention also includes a middle rail 64 slidably connected between the fixed rail 100 and the drawer slide rail 120; a first ball nest seat 66 includes a plurality of A ball 68 is located between the fixed rail 100 and the middle rail 64, so that the middle rail 64 is easy to slide and displace relative to the fixed rail 100 by means of the first ball nest seat 66; and a second ball nest seat 70 includes a plurality of balls 72 is located between the drawer slide rail 120 and the middle rail 64, so that the drawer slide rail 120 is easy to slide and displace relative to the middle rail 64 by means of the second bead nest seat 70, which is a three-section slide rail assembly.

As shown in Figure 10, in the fifth embodiment of the present invention, the elastic arm 54b of the drawer slide rail 12c is provided with a mounting hole 74; A plurality of axial grooves 76 and a fitting portion 78 enable the buckle (dowel) 50a to have flexibility, so that the buckle (dowel) 50a is inserted into the installation hole 74 of the elastic arm 54b through the flexibility , and is fixed on the elastic arm 54b by means of the fitting portion 78 .

According to the above description, it can be seen that the enhancement effect and advantages of the present invention are:

a. Provide a displacement to compensate for the assembly tolerance, so that the balls 44 of the ball nest 42 can maintain a smooth rolling displacement.

b. The fastener (dowel) 50 of the present invention is firmly connected to the fixing member 58, and has better structural strength, so it can prevent the fastener (dowel) 50 from being deformed or damaged due to poor quality and load. Come off from the support 48 .

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and other modifications can be made without departing from the spirit of the present invention. Various equivalent changes and modifications, therefore, as long as the changes and modifications to the above embodiments are within the true spirit of the present invention, they will all fall within the scope of the claims of the present application.

Claims (4)

1. a kind of sliding rail assembly, comprising a retaining rail, a drawer sliding rail and an at least detent mechanism, the retaining rail has one First longitudinal direction extension body, the drawer sliding rail with respect to the retaining rail be can longitudinally activity displacement, the drawer sliding rail have one Second longitudinal direction extension body, at least one the first longitudinal direction extension body and the second longitudinal direction extension body are provided with a perforate, It is characterized in that：

An at least detent mechanism includes a support member and a fastener, and there is the support member fixed part and an elasticity arm to connect The fixed part, the fixed part is be permanently connected at least one the first longitudinal direction extension body and the second longitudinal direction extension body, The fastener connects the elasticity arm of the support member, and corresponding to the perforate；

At least some of the elasticity arm is located in the perforate, and the elasticity arm is with a kink, the elasticity arm stress When elastic displacement is made in the perforate, the kink is butted on the inwall of the perforate,

The sliding rail assembly also includes a fixture, and the fixture is laterally passed from the elasticity arm of the support member and regularly connected Connect the fastener.

2. sliding rail assembly according to claim 1, it is characterised in that be also located at including a pearl nest seat comprising a plurality of balls Between the retaining rail and the drawer sliding rail, the drawer sliding rail is set to be easy to slide displacement with the pearl nest seat with respect to the retaining rail.

3. sliding rail assembly according to claim 1, it is characterised in that be also slidably connected including rail in one in the retaining rail Between the drawer sliding rail；One first pearl nest seat is located between the retaining rail and the drawer sliding rail comprising a plurality of balls, makes this Middle rail is easy to slide displacement with respect to the retaining rail with the first pearl nest seat；And one second pearl nest seat include a plurality of balls position In the drawer sliding rail and this between rail, the drawer sliding rail is set to be easy to slide displacement with the second pearl nest seat with respect to rail in this.

4. sliding rail assembly according to claim 1, it is characterised in that the retaining rail has an end；Further include a bottom Seat tool has a slot and at least a trip, wherein, the slot of the base is inserted with for the end of the retaining rail.