KR20070044875A - Three-part telescopic slide - Google Patents

Abstract

The present invention relates to a three-stage folding slide.

The slide of the present invention comprises an inner member, an intermediate member, an outer member, a first ball retainer and a second ball retainer. At this time, the fixing member has a raceway forming portion and a binding portion having a C-shaped cross section, and the intermediate member is And a central raceway forming portion having a C-shaped cross section and a side raceway forming portion having an O-shaped cross section, and the outer member has an upper raceway forming portion having a C-shaped cross section and a lower raceway forming portion having an O-shaped cross section. The first ball retainer has a flat cross section, and the second ball retainer has a C-shaped cross section. On the other hand, the side raceway forming portion on one side of the middle member is located inside the upper raceway forming portion of the outer member and the side race on the other side is formed. The way forming portion is located inside the raceway forming portion of the fixing member, and the lower raceway forming portion of the outer member is in the center raceway forming portion of the intermediate member. It is positioned and arranged to engage each other.

 The slide according to the present invention has a compact structure that is arranged in engagement with each other, high slide stability, in particular can be used even under high loads.

Fixing member, middle member, outer member, first ball retainer, second ball retainer

Description

Three-stage folding slides {Three-part telescopic slide}

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

Figure 2 is a perspective view of a three-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 rail of the slide according to the present invention.

5 is a perspective view of the inner movable rail of the slide according to the present invention.

Figure 6 is a perspective view of the outer movable rail of the slide according to the present invention.

Figure 7 is a perspective view of the ball retainer of the slide according to the present invention.

The present invention relates to a three-stage foldable slide, in particular, a three-stage foldable slide that can be used even under high loads.

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 classified into an outer slide member (fixed member) and an inner slide member (movable member) based on the member used for the slide. Divided into two-stage foldable slides and three-stage foldable slides in which an intermediate slide member (another moving member) is used between the outer slide member and the inner slide member. A slide for allowing members to slide between each member A member, for example a ball retainer, is arranged.

U. S. Patent No. 6,132, 020 proposes a slide 10 composed of a fixed member 17, a movable member 13, and an intermediate member 14 positioned between the fixed member and the movable member (see FIG. 1). .

Here, the slide is a lower mounting slide, and the fixing member 17 is fixed to the desk plate 16 by the extension part 12, and the moving member 13 is fixed to the bottom surface of the drawer plate 11. Intermediate member 14 Three raceways are formed at both ends of each side. A plurality of balls 15 are positioned between the fixing member 17, the moving member 13, and the intermediate member 14, thereby rolling a cloud along the raceway. The intermediate member 14 moves along the fixing member 17, and the moving member 13 slides along the intermediate member 14, so that the slide is operated in threefold folding manner.

In the case of the U.S. Patent No. 6,132,020, only the shaft portion of the fixing member 12 supports the force applied in the vertical direction. Furthermore, since the shaft portion is positioned in an oblique direction, the shaft portion is concentrated on the shaft portion. Fracture is liable to occur in the shaft portion due to the rotational moment. Therefore, the U.S. patent 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 three-stage folding type slide that can be used even under high loads.

      In order to achieve the above object, the present invention provides a three-stage folding type slide consisting of a fixing member, an intermediate member, an outer member, a first ball retainer and a second ball retainer.

At this time, the fixing member has a raceway forming portion having a C-shaped cross section and a binding portion extending therefrom so as to be fixed to a main body such as a desk or a cabinet, and the middle member has a central raceway having a C-shaped cross section. And a side raceway forming portion having an O-shaped cross section extending from both ends of the central raceway forming portion, the outer member extending from an upper raceway forming portion having a C-shaped cross section and one side of the upper raceway forming portion. The first ball retainer has a flat cross section and a ball is inserted into a ball insertion groove spaced at regular intervals, and the second ball retainer has a C-shaped cross section and has a predetermined interval. The ball is inserted into the ball insertion groove spaced apart by the side. On the other hand, the side race on one side of the middle member This forming portion is located inside the upper raceway forming portion of the outer member and the other side raceway forming portion is located inside the raceway forming portion of the fixing member, and the lower raceway forming portion of the outer member forms the central raceway of the intermediate member. Located inside the unit and arranged to engage each other.

 Three raceways are formed inside the upper raceway forming portion of the outer member, two raceways are formed outside the lower raceway forming portion, and two raceways are formed inside the central raceway forming portion of the middle member. Three raceways are formed outside the side raceway forming portion, and three raceways are formed inside the raceway forming portion of the fixing member.

Further, the first ball retainer is located between the central raceway forming portion of the intermediate member and the lower raceway forming portion of the outer member, and the second ball retainer is formed between the raceway forming portion of the fixing member and the side raceway forming portion of the intermediate member. And between the side raceway forming portion of the intermediate member and the outer race upper raceway forming portion.

The slide according to the present invention having the configuration as described above has a compact structure that is arranged in engagement with each other, the slide stability is high, and can also be used under high load.

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

Slide 100 according to the present invention, as shown in Figures 2 and 3, the fixing member 120, the middle member 130, the outer member 150, the first ball retainer 170 and the second ball It comprises a retainer 180. At this time, two second ball retainers 180 are used.

The fixing member 120 has a raceway forming portion 110 having a C-shaped cross section and a binding portion 105 extending therefrom and integrally formed (see FIG. 4). The binding portion 105 has a binding surface ( 102 and an extension surface 104, having an L-shaped cross section. The binding portion 102 serves to fix the slide 100 to the side wall plate of the main body such as a desk or a cabinet, A fastening hole (not shown) is formed at a suitable position to fasten a screw or rivet, etc. on the surface 102. Meanwhile, three raceways 112, 114, and 116 are formed inside the raceway forming unit 110. Balls 200 of the ball retainer to be described later along the raceway (112, 114, 116) performs a rolling motion.

The intermediate member 130 has a central raceway forming portion 135 and two side raceway forming portions 140 extending from both ends of the central raceway forming portion 135 (see Fig. 5). The raceway forming unit 135 has a C-shaped cross section, and two raceways 137 and 139 are formed therein. The side raceway forming unit 140 is smaller in size than the central raceway forming unit 135. It has an O-shaped cross section, and three raceways 142, 144, and 146 are formed along the circumference thereof. In addition, the side raceway forming unit 140 has an extension arm 148 having a central raceway forming unit 135 and a side race. Way forming unit 140 is formed in parallel with the surface connected to each other.

The outer member 150 has an upper raceway forming portion 160 and a lower raceway forming portion 170 extending therefrom and integrally formed (see FIG. 6). The upper raceway forming portion 160 has a C shape. Three raceways 162, 164 and 166 are formed therein. The lower raceway forming unit 170 is smaller in size than the upper raceway forming unit 160 and has an O-shaped cross section. Two raceways 172 and 174 are thus formed. The illustrated embodiment shows that another raceway 176 is formed in the lower raceway forming unit 170, although the raceway 176 is not formed. Even if the diarrhea is formed, the ball retainer is not arranged (see Fig. 3). The lower raceway forming unit 170 also has the extension arm as in the side raceway forming unit 140 of the intermediate member 130. (178) the upper raceway forming portion ( 160 and the lower raceway forming portion 170 is formed in parallel with the surface connected to each other.

The fixing member 120, the intermediate member 130, and the outer member 150 are arranged to engage with each other (see Fig. 3). That is, each side raceway forming portion 140 on both sides of the intermediate member 130 Located inside the upper raceway forming unit 160 of the outer member 150 and the raceway forming unit 110 of the fixing member 120, the lower raceway forming unit 170 of the outer member 150 is an intermediate member It is located inside the center raceway forming part 135 of 130 and takes the shape that three snakes are engaged with each other.

Between the fixing member 120, the intermediate member 130, and the outer member 150, ball retainers 170 and 180 are positioned so that these members can slide. As shown in Fig. 7, a first ball retainer is shown. The ball 200 is inserted into the ball insertion grooves spaced at regular intervals from both the 170 and the second ball retainer 180. The first ball retainer 170 has a relatively flat cross section, and the middle member 130 Located between the center raceway forming portion 135 and the lower raceway forming portion 170 of the outer member 150. On the other hand, the second ball retainer 180 has a C-shaped cross section, the fixing member 120 Between the raceway forming unit 110 and the side raceway forming unit 140 of the intermediate member 130, and the upper raceway of the side raceway forming unit 140 and the outer member 150 of the intermediate member 130. Located between two formations 160.

On the other hand, as will be apparent to those skilled in the art, in order to secure the slide to the bottom plate, such as a drawer, suitable fastening means on one side of the outer member 150, that is, the outer side of the surface on which the two raceways 162 and 164 are formed ( For example, a rivet, a fastening hole for screwing, or a peaking protrusion formed by punching the member itself with a punch should be formed. In addition, the raceway forming part 110 of the fixing member 120 and the middle member 130 are formed. The first ball retainer 170 in the vicinity of both ends of the raceway forming portion 135 of the center raceway forming portion 135 and one side of the intermediate member 130 (the side arranged inside the upper raceway forming portion of the outer member). ) And a stopper (e.g., a protrusion which protrudes a part of the inner and outer raceway forming body by punching) to prevent the second ball retainer 180 from being separated from each member. of Formation is naturally necessary for the smooth operation of the slide, and anyone skilled in the art will place the binding means and the stopper of the appropriate form in the proper position, so that the illustration for the convenience of the present invention is omitted.

In the slide according to the present invention, like the conventional slide, the fixing member is fixed to the side wall plate of the main body such as the desk or the cabinet by suitable fastening means, and the outer member is fixed to the bottom plate such as the drawer by the proper fastening means. The slide is provided. When the drawer is withdrawn, the outer member slides on the intermediate member by the second ball retainer and the first ball retainer in the drawing direction, and then the intermediate member is moved to another second member. It operates by sliding on the fixing member by the ball retainer and moving in the drawing direction.

 The slide according to the present invention has a compact structure that is arranged to interlock with each other, high slide stability, especially can be used even under a high load. That is, when an external force in the direction of gravity applied from the drawer or its contents is applied, the intermediate member 130 Both the outer member 150 and the outer member 150 resist external forces, and in particular, the extension arms 148 and 178 formed on the raceway forming portions of the members 130 and 150 serve as a supporting portion, thereby generating a greater resistance force. In the case of using a material, the slide according to the present invention can be used even at a high load as compared with the conventional slide.

Claims (3)

A fixing member having a raceway forming portion having a C-shaped cross section and a binding portion extending therefrom to be fixed to a main body such as a desk or a cabinet, An intermediate member having a central raceway forming portion having a C-shaped cross section and a side raceway forming portion having an O-shaped cross section extending from both ends of the central raceway forming portion,  An outer member having an upper raceway forming portion having a C-shaped cross section and an lower raceway forming portion having an O-shaped cross section extending from one side of the upper raceway forming portion, A first ball retainer having a flat cross section and having a ball inserted into the ball insertion groove spaced at regular intervals, and It consists of a second ball retainer having a C-shaped cross section and the ball is inserted into the ball insertion groove spaced at regular intervals, The side raceway forming part of one side of the intermediate member is located inside the upper raceway forming part of the outer member and the other side raceway forming part is located inside the raceway forming part of the fixing member, and the lower raceway forming part of the outer member A three-stage fold-type slide, characterized in that located in the center raceway forming portion of the intermediate member and arranged to engage with each other. According to claim 1, Three raceways are formed inside the upper raceway forming portion of the outer member and two raceways are formed outside the lower raceway forming portion, Two inside the center raceway forming portion of the middle member A raceway is formed and three raceways are formed outside each side raceway forming portion, and three raceways are formed inside the raceway forming portion of the fixing member. The method according to claim 1, wherein the second ball retainer is located between the fixing member and the intermediate member, and between the intermediate member and the outer member, wherein the first ball retainer is formed with the central raceway forming part of the intermediate member and the lower raceway forming the outer member. A three-stage folding slide characterized in that it is located between the parts.

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