KR20060124192A - Slide - Google Patents

Abstract

A slide having a sliding member with ball moving path of caterpillar mode is provided to eliminate need of a ball retainer for the slide, to allow smooth sliding movement of a sliding part without occurrence of scratching or noise caused by friction resistance in high load condition. The slide having the sliding member with ball moving path of caterpillar mode includes: two rail members; two sliding members; and multiple balls, which allows sliding movement of the sliding part along the rail part. The rail member(100) comprises a U-type channel part having three wall body parts(110,120,130) and a rail part incorporated to the channel part, which has four sliding surfaces for the balls(145). The sliding member comprises: a body part; a space for the rail part formed in the body part, where the rail part of the rail member is located; and four moving path for ball corresponding to the each sliding surface for the balls(145) of the rail member.

Description

Slide {Slide}

1 is a perspective view of a conventional slide.

2 is a cross-sectional view of a conventional slide.

Figure 3 is a perspective view of the rail member used in the present invention.

Figure 4 is a perspective view of the sliding member used in the present invention.

5 is a cross-sectional view along the A-A direction of the sliding member shown in FIG.

Fig. 6 is a sectional view taken along the B-B direction of the sliding member shown in Fig. 4;

7 is a modification of the ball arranged on the sliding member.

8 is a perspective view of a part of the sliding member as a perspective view of the slide according to the present invention.

9 is a slide perspective view of a two-stage sliding method according to the present invention.

Fig. 10 is a sectional view of the slide shown in Fig. 9;

11 is a perspective view showing a state in which the slideway of the two-stage sliding method is drawn out to the maximum;

The present invention relates to a slide, and more particularly, to a slide including a slide member having a ball movement path of the endless track system.

A storage unit for storing things such as a drawer such as a desk, a cabinet, a farm, or a vegetable box of a refrigerator is usually used to slide out and pull out of a desk, a cabinet, a farm, or a refrigerator body.

The slide is generally composed of a rail member and a slide member. The rail member is fixed to a main body such as a desk or a cabinet, and the slide member is equipped with an accommodating portion such as a drawer. The part can be withdrawn and withdrawn to the body. An intermediate sliding member is positioned between the rail member and the sliding member so that the slide may be configured to slide in two steps.

1 is a perspective view of a conventional slide, wherein the slide is composed of one rail member 10 and one slide member 20, and four ball slide surfaces 15 are formed on the rail member 10. Thus, the rail member 10 and the slide member 20 are manufactured by extrusion or drawing for cost reduction and mass production. FIG. 2 is a cross-sectional view of the slide shown in FIG. Between the balls 20 is a ball 30 which links these members 10 and 20 and rolls (rotates) along each ball slide surface 15 (see Fig. 1). The plurality of balls 30 are arranged in the longitudinal direction of the slide member 20, the balls 30 are held at regular intervals from each other by the ball retainer 40 so that the ball slide surface (15) on a straight line In this way, the slide member 20 slides on the rail member 10 by a plurality of balls 30 to the rail member 10. In the case of the two-stage sliding slide, the inner surface corresponding to the shape of the ball sliding surface 15 and the outer surface corresponding to the shape of the ball sliding surface 15 are provided. An intermediate sliding member (not shown) is positioned within the sliding member 20 such that the intermediate sliding member slides on the rail member and the sliding member slides on the intermediate sliding member.

  Conventional slides in which the ball is rolled on the ball slide surface only in a straight line require a ball retainer to keep the balls at a constant distance from each other, and when a high load is applied to the slide, the balls are not only the ball slide surface but also the ball. The frictional resistance with the retainer causes the balls to slide on the surface of the ball rather than rolling, i.e., rotational movements. If this happens, the slide will not function smoothly.

It is an object of the present invention to provide a slide that can operate smoothly even under high loads and can be manufactured inexpensively by extrusion or drawing.

 In order to achieve the above object, the present invention provides a slide as follows.

The slide of the present invention is composed of a rail member, a sliding member, and a plurality of balls that connect the slide members and slide the slide member along the rail member. At this time, the rail member includes a U-shaped channel portion and a rail portion formed integrally with each other. And a rail portion having four ball sliding surfaces formed to face each other in a diagonal direction, the slide member being formed in the fuselage portion, the fuselage portion and the rail portion space where the rail portion of the rail member is located, and the fuselage portion in the fuselage portion. Four ball movement paths are formed corresponding to each ball slide surface of the rail member. Particularly, the ball movement paths are formed in a ring shape, so that the balls move in the ball movement path of the slide member in an endless track manner. It is composed.

In addition, the slide of the present invention is composed of two rail members and two sliding members, the two sliding members are formed so that the rail space of each sliding member is fixed to each other in a direction opposite to each other to slide in two-stage sliding formula Can be.

 At this time, it is preferable that the rail member is formed by an extrusion or drawing method.

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

Fig. 3 is a perspective view of a rail member 100 used in the slide of the present invention, and its configuration is the same as that of the known rail member. That is, the rail member 100 has three wall portions 110, 120, and 130 formed integrally. It is composed of a channel portion and a rail portion 140 formed integrally with the channel portion. The wall portion 110 uses a fastener such as a screw to fix the rail member 100 to a cabinet or a drawer. Four ball slide surfaces 145 are formed in the rail portion 140. The four ball slide surfaces 145 face each other in a diagonal direction as shown. As will be described below, a plurality of balls are rolled on the ball slide surface 145 to interconnect the rail member and the slide member to allow the slide member to slide on the rail member.

The fuselage 210 of the sliding member 200 used in the slide of the present invention, as shown in Figure 4, has a generally rectangular shape. An outer surface of the fuselage 210, such as a screw is inserted into the fixture A fixing groove 260 may be formed, and a rail portion space 135 (see FIG. 5) in which the rail portion 140 of the rail member 100 is located is formed in the fuselage 210. One side 220 of the fuselage 210 has a cutout 230 formed in the longitudinal direction thereof. In addition, a plurality of balls 250 are provided in the fuselage 210 in contact with the rail space 135. A ball slide passage 240 (see Fig. 7) is formed to allow rolling motion.

The rail part 140 and the one wall part 130 of the rail member 100 are inserted into the sliding member 200 through the cutout 230 and the rail part space 135 of the sliding member 200 to be engaged with each other. A plurality of balls 250 are linked to each other to slide. Figure 8 is a perspective view showing that the rail member 100 is inserted into the sliding member 200 to form a slide, a part of the sliding member 200 It shows a partially truncated state.

5 and 6 are cross-sectional views of the sliding member 200 shown in FIG. 4 in the direction of AA and BB, respectively, and in particular, as can be clearly seen in FIG. 6, the sliding member 200 used in the present invention has a ball ( The ball slide passage 240 is positioned to form a rolling motion 250. The ball slide passage 240 corresponds to a position corresponding to the ball slide surface 145 on the rail portion 140 of the rail member 100. The ball slide path 240 is formed in a ring shape having an approximately elliptical shape. The size of the ball slide path is such that the size of the ball 250 allows the ball 250 to perform a smooth rolling motion. The position of the balls arranged on the sliding member can be varied. That is, although the balls are positioned at 45 degrees in FIG. 5, they may be arranged horizontally as shown in FIG. 5 and 7, only the ball 250 is shown and the ball runway 240 is shown for convenience. It is not. The method of movement of the ball 250 will be described in more detail below.

In the case of the slide according to the present invention, the ball 250 does not perform the conventional linear rolling motion as described above, but moves in the orbit manner along the annular ball slide passage 240. If 250 is configured to perform such an endless track motion, then the ball retainer 40 (see Fig. 2), which is essentially required for conventional slides, is not required. And the sliding surface of the sliding member 20 corresponding thereto, as well as contacting the ball retainer 40 at least one point or more. In this situation, when a heavy load is applied to the slide, the balls are not clouded, When the balls slide on the slide surface instead of rolling, the balls slide on a relatively soft slide surface due to frictional resistance between the ball and the slide surface. Damage to one scratch or the like causes resistance noise, and the sliding member does not perform smooth sliding motion. However, when the balls make the rolling motion of the caterpillar system as in the present invention, friction resistance with the ball retainer does not occur. The frictional resistance to the balls is less than that of the prior art. In the case of the present invention, the balls may be brought into contact with each other and resistance may occur. However, the surfaces of the balls are coated with lubricating oil or lubricating balls are used. Therefore, the frictional resistance of is extremely small. Therefore, the slide according to the present invention can smoothly move the ball 250 even under a high load, there is no scratch on the sliding surface, resistance noise generated in the conventional slide.

The slide may be formed in a two-stage slide type to slide on a longer slide distance. In the conventional slide, as described above, the intermediate slide member is positioned between the rail member and the slide member so that the intermediate slide member is formed on the rail member. The slide member and the slide member are configured to slide on the intermediate slide member. Even when using the slide according to the present invention, the slide can be configured by a two-stage slide type.

9 is a view showing a two-stage slide type slide using two slides according to the present invention. Two-stage slide type slides include two rail members 100 and 100 'and two slide members 200 and 200'. The two sliding members 200 and 200 'are fixed to each other in a direction in which the rail spaces of the sliding members 200 and 200' are opposed to each other. For convenience, the ball slide passage is not shown for convenience), it may be made by inserting a suitable fastener such as a screw column into the fixing grooves (260, 260 ') on the sliding member (200, 200').

Operation of the slide of the two-stage sliding method according to the present invention, the two sliding members (200, 200 ') once fixed to each other slides along the rail member 100 integrally, at the same time the rail member (100') sliding member ( Figure 10 shows that the slide of the two-stage slide method is withdrawn to the maximum, that is, the slide members (200, 200 ') and the rail member (100') are both withdrawn. The slide of the two-stage slide type is very useful because the slide length is almost doubled than the slide using one rail member 100 and one slide member 200.

9 to 11, although the two rail members 100 and 100 'and the two sliding members 200 and 200' are shown to have the same dimensions, the dimensions may be different from each other depending on the purpose of use. That is, the rail members 100 ' ) And the size of the sliding member 200 'is smaller than the rail member 100 and the sliding member 100', or the two sliding members (200, 200 ') have the same dimensions but the wall portion 110' of the rail member (100 '). ) May be shorter than the wall portion 110 of the rail member 100. Also, the wall portions 110 and 110 'may be omitted from both or one of the rail members 100 and 100' and the wall portions 120 and 120 'may be omitted. In this case, a through hole 150 (see FIG. 3) for fixing the rail member to a cabinet, a drawer, or the like should be formed in the wall parts 120 and 120 ′.

Some high load or ultra high load slides are made by precision machining of the rail member for smooth rolling of the balls. However, in the slide according to the present invention, the rail member is extruded or drawn out for cost reduction and mass production. This is because even when the rail member is manufactured by extrusion or drawing, the balls smoothly move even under high loads in the slide according to the present invention.

Unlike the conventional slide, the slide according to the present invention is configured so that the ball does not roll in a straight line, but moves in a caterpillar manner, and thus, unlike a conventional slide, a ball retainer is not required. The sliding member can perform smooth sliding movement without any minute scratches or resistance noise on the sliding surface due to friction between the ball and the sliding surface.

Claims (3)

It consists of a rail member, a slide member, and a plurality of balls that connect them and allow the slide member to slide along the rail member. The rail member is composed of a U-shaped channel portion and a rail portion formed integrally with each other, the rail portion has four ball sliding surfaces formed to face each other in a diagonal direction, The sliding member includes a body part, a rail part space formed in the body part, and a rail part space in which the rail part of the rail member is located, and four ball movement paths formed in the body part corresponding to each ball sliding surface of the rail member. The moving passage is formed in a ring shape, Balls slide, characterized in that the slide movement in the ballway path of the sliding member in a caterpillar manner. The slide of claim 1, wherein the slide is composed of two rail members and two sliding members, and the two sliding members are capable of sliding in a two-stage sliding manner by being fixed to each other in a direction in which the rail space of each sliding member faces each other. A slide, characterized in that formed. The slide according to claim 1 or 2, wherein the rail member is formed by an extrusion or drawing method.

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