KR20070119292A - 2-stage folding bottom mounting slides - Google Patents

Abstract

A two fold type undermount slide is provided to be used when high load is applied, and to improve the stability of the side thereof greatly by generating resisting power in right and left directions of the slide. A two fold type undermount slide includes an inner side member(110), an outer side member(150) and a ball retainer(180). The inner side member includes a raceway forming portion having a center portion(130) and a side surface portion(140) and a fastening portion extending from the side surface portion to be fixed on a body of a cabinet. The outer side member includes a C shape section on which a center curved portion is formed. The ball retainer is disposed between the inner side member and the outer side member. A ball(190) is inserted into a ball insertion recess.

Description

Twofold type undermount slide {Twofold type undermount slide}

1 is a cross-sectional view of a conventional two-stage folding slide.

Figure 2 is a perspective view of a two-stage folding type slide in accordance with the present invention.

3 is a cross-sectional view of a slide according to the present invention.

Figure 4 is a perspective view of the fixing member of the slide according to the present invention.

Figure 5 is a perspective view of the outer member of the slide according to the present invention.

Figure 6 is a perspective view of the ball retainer of the slide according to the present invention.

The present invention relates to a two-stage foldable bottom mounting slide, in particular, a two-stage foldable slide that can be used even under high loads and has improved stability.

When a drawer is installed in a desk, a cabinet, or the like, a slide is generally attached so that the drawer can be pulled out and drawn in a sliding manner with respect to a main body such as a desk or a cabinet.

The slides are classified into side-mounted slides attached to the side of the drawer and bottom-mounted slides attached to the bottom of the drawer. Also, the slides are referred to as the outer slide member (fixed member) and the inner slide member (movable member) based on the member used for the slide. The two-stage foldable slide and the intermediate slide member (another moving member) are used between the outer slide member and the inner slide member.

U.S. Patent No. 6,132,020 discloses a movable rail 13 which can slide along the fixed rail 12 by means of a fixed rail 12 and a ball 15 having three raceway portions 14 formed therein. A two-stage folding slide 10 is proposed (see Fig. 1). Here, the slide is a bottom-mounted slide, and the fixed rail 12 is fixed to the desk plate 16, and the movable rail 13 is a drawer. It is fixed to the bottom surface of the plate 11.

In the state shown in Fig. 1, the raceway is relatively stable because the two raceways formed on the left side of the fixed rail are applied to the force applied from the left side, but the raceway formed on the right side is applied to the force applied from the right side. There is a problem that the stability of the slide is weak because it only resists the force applied. However, since the slide is symmetrically attached to the left and right sides of the drawer plate 11, it is paired with the state shown in FIG. In the opposite case, the stability of the slide is weak with respect to the force applied from the right side. Thus, the slide finally has a problem in the side stability.

In addition, in the case of the US Patent No. 6,132,020, only the shaft portion in which the fixed rail 12 is connected to the raceway forming portion 14 should support the load applied from the drawer and its contents, and this shaft portion is the direction in which the load is applied. It is inclined against and has a disadvantage in that it is difficult to use when subjected to high loads.

The present invention is to solve the problems of the conventional slide, it is an object of the present invention to provide a two-stage fold type slide that can be used even under high load and improved side stability.

      According to the present invention, a binding is formed extending from the side portion to be fixed to the main body having a U-shaped cross section and the side surface portion of the W-shaped cross section formed on both sides of the central portion and the main body such as a desk, a cabinet, etc. Two-fold folding consisting of an inner member having a portion, an outer member having a C-shaped cross section with a central bent portion, and a ball retainer positioned between the inner member and the outer member and inserted into a ball insertion groove spaced at regular intervals. Provides an undermount slide.

At this time, four raceways are formed in a direction toward the outer member in the raceway forming portion of the inner member, and two raceways are formed in the center portion and one in each side portion, and each outer member is formed in the outer member in the direction toward the inner member. All four raceways are also formed at positions corresponding to the raceways.

The raceway in the center portion is preferably formed at both end portions of the U shape and the raceway in the side portion is preferably formed at the center portion of the W shape.

Further, the ball retainer has a C-shaped cross section in which a central bent portion is formed.

Hereinafter, the present invention will be described in more detail with reference to the embodiments illustrated in the accompanying drawings.

2 and 3 are a perspective view and a cross-sectional view of the slide according to the present invention, the slide 100 is the ball located between the inner member 110, outer member 150, inner member 110 and outer member 150. It consists of a retainer 180.

The inner member 110 has a raceway forming part 120 and a binding part 115 extending from one side of the raceway forming part 120 and having an L-shaped cross section.

115 serves to secure the slide 100 to the side wall plate (not shown) of the body, such as a desk, cabinet, fastening hole (to fasten screws or rivets, etc.) to the fastening surface of the fastening portion 115 ( Not shown) is formed at a suitable position.

Raceway forming portion 120 of the inner member 110, as shown in Figure 4, the central portion

130 and the side portion 140, the center groove 125 is formed therein. Central portion 130

Has a U-shaped cross section, and the side portion 140 is formed on both sides of the central portion 130 and has a W-shaped cross section. One side of the side portion 140 is connected to the above-described binding portion 115.

The raceway forming part 120 of the inner member 110 has raceways 135 and 145 formed by rolling the balls 190 of the ball retainer 180 in a direction toward the outer member 150.

Four raceways 135 and 145 are formed at the central portion 130 and one at each side portion 140. The raceways 135 of the central portion 130 are formed at both end portions of the U shape. The raceway 145 of the side portion 140 is formed at the center of the W shape.

Near both ends of the raceway forming unit 120, a stopper for preventing the ball retainer 180 to be described later from leaving the inner member 110, for example, protruding a part of the body of the raceway forming unit 120 by punching. The stopper is positioned. The formation of such a stopper is naturally necessary for smooth operation of the slide, and anyone skilled in the art will place a stopper of a suitable shape in a proper position, and thus, for convenience of illustration, the illustration is omitted.

As shown in Fig. 5, the outer member 150 has a C-shaped cross section with a central bent portion 153. The inner member 160 also has an inner member in a direction toward the inner member 110.

All four raceways 157, at a position corresponding to each raceway 135,145 of 110;

157 'is formed. That is, two raceways 157 corresponding to the raceway 135 of the inner member 110 are formed at both sides of the central bent portion 153 formed at the center of the fuselage 151. Raceway of the inner member 110 where the flange portion 155 and the body portion 151 are connected

One raceway 157 'corresponding to 145 is formed.

In the outer member 150, as will be obvious to those skilled in the art, suitable means for fastening the outer member 150 to the bottom of a plate (not shown) such as a drawer, for example, for riveting or screwing The peaks, formed by punching the members themselves with fasteners or punches, should be formed, which are not shown for convenience.

As shown in FIG. 6, the ball retainer 180 has a central bent portion of the outer member 150.

A central bent portion 185 is formed at a position corresponding to 153 and has a C-shaped cross section like the outer member 150. The ball retainer 180 has a plurality of balls inserted into ball insertion grooves spaced at regular intervals. 190 is located. The balls 190 make a rolling motion along the raceways 135, 145, 157, and 157 ′ formed in the members 110 and 150.

Slide 100 according to the present invention, as can be seen from Figure 3, left and right symmetrical structure. When the external force is applied from the left side (A direction) of the left raceway 145 and the right side The raceway 135 generates a resistance against external force, and when the external force is applied from the right side (C square), the raceway 145 on the right side and the raceway on the left side

Reference numeral 135 generates resistance to external force. Thus, by generating symmetrical resistance to the left and right directions, the lateral stability is greatly improved compared to the known slide 10.

In addition, when an external force in the B direction is applied, a portion where the side portion 140 and the binding portion 115 of the raceway forming portion 120 of the inner member 110 extends is positioned horizontally with respect to the external force, thereby increasing the same strength. In the case of using a material having a greater strength than the one positioned in an oblique direction with respect to the external force, a material having the same strength can be used. Thus, the slide according to the present invention can be used even at a higher load than the conventional slide 10. Can be.

In the slide 100 according to the present invention, like the conventional slide, the fastening portion 115 of the inner member 110 is fixed to the side wall plate of the main body such as a desk or a cabinet, and the outer member 150 is fixed to a drawer. The slide is installed by fixing it to the bottom of the plate. When the drawer is withdrawn, the outer member 150 first slides on the inner member 130 by the ball retainer 180 and moves in the drawing direction. The back is withdrawn.

The slide of the present invention significantly improves the lateral stability by generating a symmetrical resistance force to the left and right directions, and can be used even at a higher load than conventional slides when using materials of the same strength.

Claims (4)

 A raceway forming part 120 formed of a central portion 130 having a U-shaped cross section and a side portion 140 of a W-shaped cross section formed on both sides of the central portion 130 and a main body such as a desk or a cabinet. An inner member 110 having a binding portion 115 extending from the side portion 140, An outer member 150 having a C-shaped cross section in which a central bent portion 153 is formed, and Two-stage folding type bottom mounting slide, characterized in that consisting of a ball retainer 180 is inserted between the inner member 110 and the outer member 150 and the ball 190 is inserted into the ball insertion groove spaced at regular intervals . According to claim 1, Four raceways (135, 145) are formed in the direction toward the outer member 150 in the raceway forming portion 120 of the inner member 110, two in the central portion 130, each side portion ( One by one in the 140, the outer member 150 in the direction corresponding to the inner member 110 in the direction corresponding to each raceway (135,145) of the inner member 110 all four raceways (157,157 ') 2-fold folding bottom mounting slide characterized in that the formed. According to claim 2, The raceway 135 of the central portion 130 is formed on both ends of the U-shaped, the raceway 145 of the side portion 140 is three-fold folding characterized in that formed in the center of the W-shape Type undermount slide. According to claim 1, Three-fold folding bottom mounting slide, characterized in that the ball retainer (180) has a C-shaped cross section with a central bent portion (185).

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