KR101158796B1 - Roller type slide for household electric appliaces - Google Patents

Abstract

The present invention relates to a roller-type slide for home appliances having various additional functions.

The roller slide comprises an outer bracket, an inner bracket and a pair of rollers. In the roller-type slide of the present invention, a rack including a gear tooth formed in the longitudinal direction of the bracket is formed at the upper end of the outer bracket, the pinion binding portion is formed on the inner bracket and the pinion is bound to this binding portion. The pinion has the shape of a disc, with the gear teeth of the disc meshing with the gear teeth of the rack, and with a fixed portion on one side of the disc. Since the rolling motion is carried out at a constant speed, the left and right frames are pulled in and out at the same speed. As a result, the frames are drawn out and pulled out without twisting to the left and right.

Roller Slide, Outer Bracket, Inner Bracket

Description

Roller type slide for household appliances {Roller type slide for household electric appliaces}

The present invention relates to a roller slide, and more particularly, to a roller slide for home appliances having various additional functions.

The slide is called a ball slide when the relative movement between the members constituting the slide is performed by the ball, and a roller (type) slide when the slide is performed by the roller.

When the roller-type slide 1 is attached to a drawer of a desk or a wardrobe, as shown in FIG. 1, an outer bracket 2 attached to an inner wall (not shown) of the desk or a wardrobe and an outer wall of the drawer (not shown) It consists of an inner bracket (4) attached to. A roller groove 7 is formed in the outer bracket 2 so that the roller can be inserted and rolled. Each bracket (2,4) is a raceway (3, 5) is formed in the roller rolling motion, a pair of rollers (6, 6 ') are spaced apart from each other and fixed to each bracket.

When the drawer is pulled out, the rollers of the outer bracket 2 and the inner bracket 4 are pulled out.

The inner bracket 4 and the outer bracket 2 move relative to each other while 6,6 'rolls the raceway 3,5. The rollers 6 and 6 'move closer to each other by the inner bracket 4 moving in the drawing direction when the drawer is pulled out, and the rollers 6 and 6' move when the inner bracket 4 moves in the pulling direction when the drawer is pulled out. Are separated from each other.

In the case of using a roller-type slide in a drawer for household appliances such as a refrigerator, a microwave oven or a washing machine, as shown in FIG. 2, the inner bracket 4 is modified to form a frame side wall. The frame 8 is in the form of a drawer but is empty inside, and a basket 9 serving as a drawer is placed in the frame. The outer bracket 2 is fixed to the inner wall (not shown) of the main body of the home appliance. At this time, the roller 6 'is fixed to the inner bracket, but the roller 6 is fixed to the outer bracket or directly to the inner wall of the home appliance body.

When the drawer-shaped frame 8 in which the basket 9 is placed is withdrawn and drawn in, each roller or bracket performs the same motion as described above.

Recently, in the case of a roller-type slide for home appliances, a number of functions such as a stable drawing of the frame according to a large capacity of the basket (that is, the frame), a function for drawing movement, or a function for automatic closing of the drawer are required to be added to the slide. Doing. When adding these additional functions to the slide, the conventional bracket structure alone cannot add these functions.

An object of the present invention is to provide a roller-type slide having a bracket structure with a function for the stable insertion, withdrawal movement of the frame to the roller-type slide.

Still another object of the present invention is to provide a roller-type slide having a bracket structure to which an automatic closing device for automatic closing of a frame can be attached to the roller-type slide.

According to the present invention, a rollerway is formed with a raceway in which rolling motions are formed, and an outer bracket of a predetermined length fixed to an inner wall of a main body of a home appliance, an inner bracket forming a frame sidewall on which a raceway is formed and a basket is attached, and one inside the body. The above object is achieved by changing the structure of the conventional roller-type slide for household appliances, which consists of a pair of rollers fixed to one side of the side wall or outer frame and the other fixed to one side of the inner bracket.

In the present invention, a rack including a gear tooth formed in the longitudinal direction of the bracket on the upper end of the outer bracket is formed, the pinion binding portion is formed on the inner bracket and the pinion is bound to this binding portion. The pinion has a disc shape and a gear tooth engaged with the gear teeth of the rack is formed at the circumference of the disc and has a fixing part at one side of the disc.

When the rack and the pinion are formed on the roller-type slide, the pinion performs the rolling motion at a constant speed along the rack, so the left and right frames are pulled in and out at the same speed, and as a result, the frame is twisted left and right. Withdrawal, withdrawal.

The rack and pinion include a binding port for binding the pinion to the inner bracket. The pinion binding portion of the inner bracket is formed into a circular groove and a pinion binding hole is attached around the groove. The pinion is attached to the inner bracket by coupling the pinion fixing part to the pinion fastener.

A hollow projection is formed at the center of the binding port, and the fixing portion of the pinion is composed of a circular projection having a groove formed therein and an elastic plate positioned along the outer circumference of the circular projection. At one end of the elastic plate, a fixing projection having a triangular cross section is formed, so that it is easily inserted when the fixing portion of the pinion is inserted into the hollow portion of the hollow projection of the binding hole, but once inserted, the fixing projection of the elastic plate is hollow. By binding to the projection, it is preferable that the pinion does not separate from the binding port. As described above, the pinion and the binding port are simply joined by only inserting the pinion fixing part into the hollow projection of the binding port, but are not separated from each other once combined.

In addition, it is preferable that an accommodation groove into which the elastic plate is inserted is formed on the outer peripheral surface of the circular protrusion of the pinion when the elastic plate is bound to the hollow protrusion.

In addition, according to the present invention, a roller release prevention jaw is formed on one side of the raceway of the outer bracket, the roller is fixed to the inner bracket is located behind the pinion binding portion.

In addition, according to the present invention, the automatic closing device insertion groove is formed in the outer bracket and the automatic closing device is attached to the insertion groove. The inner bracket is provided with a protrusion for detachably coupling with the automatic closing device.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

3 is a perspective view of the outer bracket according to the present invention.

The outer bracket 10 is composed of a plate-shaped body of a predetermined length, and a roller groove portion 12 is formed in the center of the body similar to a known outer bracket, and the bottom surface of the roller groove portion 12 constitutes a raceway 14. The roller groove part 12 is opened to one side, and the inlet part 13 formed in the opening part wider than the width of the roller groove part 12 is formed.

On the other hand, the outer bracket 10 according to the present invention, unlike the known outer bracket is formed on the upper end of the rack 20 is formed in the longitudinal direction of the bracket. In the rack 20 a number of gear teeth 22 are located.

The roller departure prevention jaw 16 is formed at one side of the raceway 14 formed in the roller groove portion 12 of the outer bracket 10. This jaw (16) is a roller fixed to the inner bracket

9 (see FIG. 9) serves to prevent the roller groove portion 12 from leaving the roller groove portion 12 during the rolling motion along the raceway 14.

In the case of the embodiment of the outer bracket 10 shown in Figure 3, it shows that the insertion groove 26 to which the known automatic closing device 100 (see FIGS. 10 and 11) is attached to the lower side of the bracket body. The groove 26 has a form in which the automatic closing device can be seated, and a plurality of fixing grooves 28 are positioned at appropriate positions so that the automatic closing device can be fixed.

As shown in Figure 10 and 11, the known automatic closing device 100 includes a moving member 140 for reciprocating the groove 116 by the elastic spring 170, the body of the automatic closing device This device is provided with a groove 114 corresponding to the fixing groove 28 of the outer bracket 10. Suitable fixtures, such as screws or rivets, are inserted into these grooves 28 and 114 to secure the automatic closure device 100 to the insertion groove 26. The moving member 140 has a groove 145 detachably coupled to the protrusion member 84 (see FIG. 9) fixed to the inner bracket 60. For a more detailed configuration and operation relationship of the automatic closing device 100, reference should be made to Patent Application No. 2007-0017212 by the present applicant, and details thereof will be omitted.

Since the attachment of the automatic closing device is optional, the insertion groove 26 is not formed in the outer bracket 10 when the automatic closing device is not attached.

As can be seen in FIG. 13, which shows that the outer bracket is fixed to the inner wall of the appliance main body in a partially cut away state, the outer bracket 10 fuselage is mounted by a suitable fastener such as a screw or rivet inserted into the fixing groove 11. It is fixed at the proper position of the product side wall 90. In FIG. 13, the roller 92 is illustrated as being fixed at a proper position of the side wall 90 of the home appliance, but the body of the outer bracket 10 may be formed longer and the roller 92 may be fixed to the body.

Figure 4 is a perspective view of the inner bracket according to the present invention.

The inner bracket 60 is composed of a thin plate-like body, and the raceway 62 is formed at the upper end of the body as in the conventional case. One side of the raceway 62 may be provided with an anti-separation jaw 64 to prevent another roller 92 (see FIG. 12) from leaving the raceway 62. When forming the breakaway jaw 64, the raceway

A part of the flange 66 forming the 62 is bent to form the jaw 64.

Unlike the prior art, the inner bracket 60 is engaged with the pinion 30 (see FIGS. 5 and 6) engaged with the gear teeth 22 of the rack 20 formed on the outer bracket 10, unlike the conventional art. . A pinion binding portion is formed at one side of the inner bracket 60 to bind the pinion 30. In the illustrated embodiment, the pinion binding portion has a circular groove 67. A plurality of fixing grooves 65 are formed around the circular groove 67, and another fixing groove 61 to which the aforementioned protrusion member 84 is fixed is formed at the lower end of the inner bracket 60.

Insertion protrusion 41 of the pinion fixing portion 40 to be described later is inserted into the circular groove 67, the outer diameter of the circular groove 67 is also formed larger than the outer diameter of the pinion side plate 36 to be described later (See Figure 9). The fixing groove 65 penetrates a fastening means such as a screw or rivet to attach to the inner bracket 60 of the pinion fastener 50.

As shown in FIGS. 7 and 8, the pinion binding device 50 has a rectangular plate-like body, and a hollow protrusion 52 is formed at the central portion of the plate-like body to protrude to one side. The hollow portion 54 of the hollow projection 52 is a through hole formed through the plate-like body, and the cross section of the through hole has a circular shape. An appropriate number of plate-shaped support portions 53 are formed around the outer circumferential portion of the hollow protrusion 52 to serve as a support for the opening of the hollow protrusion 52. On the other side of the plate-like body (the opposite side of the surface from which the hollow projection protrudes), a circular groove portion 56 into which the side plate 36 of the pinion to be described later is inserted is formed. In addition, the fixing hole 50 is formed in the position corresponding to the fixing hole 65 for attachment to the inner bracket 60.

5 and 6, the pinion 30 has a gear tooth 32 formed to be engaged with the gear teeth 22 of the rack along its outer circumference, and on one side thereof, the binding hole 50 described above. The fixing part 40 is engaged with and engaged with.

In the illustrated embodiment, the pinion 30 is formed with a side disc 36 having an outer diameter equal to the outer diameter of the gear teeth 32 along one side cross-section of the gear teeth 32. Although this side plate 36 is arbitrary structure, it is preferable to be formed. The side plate 36 serves as a support for supporting the gear teeth 32. In addition, when the pinion 30 is coupled to the binding port 50, the pinion 30 is easily connected to the binding port 50 by inserting the side plate 36 into the circular groove 56 of the binding hole described above. It is located in the binding position.

The pinion fixing portion 40 is composed of a circular protrusion 41 and an elastic plate 44 positioned along the outer peripheral portion of the circular protrusion. In the center of the circular protrusion 41, a groove 42 having a suitable shape is formed inwardly, and the groove 42 connects the pinion of the left and right sides and is formed in a shape corresponding to the shape of the groove 42. 80 (see Fig. 9) is inserted.

The elastic plate 44 is formed at equal intervals along the circumference of the circular protrusion 41 in at least two or more numbers, and in the illustrated embodiment, four elastic plates are formed at 90 ° intervals. Each elastic plate 44 is located slightly spaced from the circular protrusion 41 in the form of an elongated plate. A fixing protrusion 45 is formed at one end of the elastic plate. The fixing protrusion 45 has a triangular cross section so that the fixing protrusion 40 of the pinion can be easily inserted into the hollow portion of the hollow protrusion 52 of the binding port, but once inserted, the fixing protrusion of the elastic plate By binding the 45 to the hollow projection 52, the pinion 30 is prevented from being separated from the binding port 50. On the other hand, it is preferable that the receiving groove 43 into which the elastic plate 44 is inserted is formed on the outer circumferential surface of the circular protrusion 41 of the pinion when the elastic plate 44 is bound to the hollow protrusion 52. The groove 46 formed in the pinion body of the elastic plate 44 is for forming an extension of a mold for forming the elastic plate 44 when the pinion 30 is injection molded into plastic.

When the fastener 50 and the pinion fixing part 40 are configured as described above, the pinion 30 can be simply inserted into the hollow projection 52 of the fastener by inserting the pinion fixing part 40 of the pinion into the hollow projection 52. ) Is coupled to the binding port (50). The pinion 30 should be rotated in the state coupled with the binding port (50). Therefore, the diameter of the hollow portion 54 of the hollow projection 52 of the binding port, the outer diameter of the circular projection 41 of the pinion, the thickness of the elastic plate 44, the depth of the receiving groove 43, the fixing projection 45 The dimensions of each component, such as the thickness of the appropriate to be selected so that the pinion 30 can be easily coupled to the fastener and at the same time smoothly rotational movement.

When the pinion 30 is coupled with the binding port 50, and the binding port 50 is attached to the inner bracket 60 by a suitable fastening means such as a screw or a rivet, the pinion is connected through the binding port 50. To be attached to the inner bracket.

Since the basic operation of the rack and pinion according to the present invention is the same as in the case of known racks and pinions (see, for example, the applicant's patent application 2007-0075609), this is not described in detail any further.

9 is a perspective view showing that the inner bracket 60 according to the present invention constitutes a frame side wall, as shown in FIG. 2. In FIG. 9, a basket serving as a drawer and placed in a frame is omitted.

Both side walls of the frame 70 are composed of an inner bracket 60, and the pinion 30 is attached to the inner bracket 60 through the fastener 50, and the pinions 30 on both sides are It is connected by a connecting rod (80). The basket, not shown, rests on the flange 66 of the inner bracket. The roller 68 is fixed to the rear end of the inner bracket. The fixed position of the roller 68 should be located behind the fastening position of the pinion 30 (where rear is the inward direction of the frame, that is, the opposite direction of the frame handle shown in FIG. 9), and the reason thereof will be described later. .

13 and 14 are side plan views showing a state in which one side of the frame is fully coupled to the outer bracket fixed to the inner wall of the home appliance, and the frame only shows the inner bracket for convenience. 13 and 14 show that the automatic closing device 100 is fixed to the outer bracket 10.

Inner bracket 60 (i.e., frame) coupling to the outer bracket 10 is achieved by first lifting the inner bracket 60 at an appropriate angle while the rollers 68 fixed to the inner brackets of the roller grooves 12 of the outer bracket. This is accomplished by allowing the inlet 13 (see FIG. 3) to be inserted into the roller groove 12. At this time, since the roller 68 is located behind the binding position of the pinion 30 as described above, the roller 68 to the roller groove portion 12 of the outer bracket while lifting the inner bracket 60 at an appropriate angle. Insertion Pinion (30) [Pinion (30) is the fastener

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Located in the opposite direction of 50, not visible in FIGS. 13 and 14 does not interfere with rack 20 to facilitate coupling. When the roller 68 is inserted into the roller groove portion 12 with the roller 68 lifted at an appropriate angle, the roller 68 is continuously inserted behind the roller groove portion 12 while lowering the inner bracket 60 in the direction of the arrow R again. The inner bracket and the outer bracket are combined.

In the state where the inner bracket and the outer bracket are fully engaged (the state of FIG. 14), the roller 68 fixed to the inner bracket rolls the raceway 14 (see FIG. 3) along the roller groove portion 12 of the outer bracket. The roller 92 fixed to the inner wall of the household appliance rolls along the raceway 62 (see FIG. 4) formed on the inner wall of the flange 66 of the inner bracket. Accordingly, the rollers 68 and 92 move in the direction close to each other when the drawer (ie, the frame) is pulled out, and the rollers 68 and 92 move in the direction away from each other.

When the drawer is pulled out, the gear teeth 32 of the pinion 30 of the inner bracket are engaged with the gear teeth 22 of the rack 20 of the outer bracket, and the pinions on the left and right sides are symmetrical. The pinions on the left and right sides are engaged with the rack without disagreement with each other, and the draw and pull movements are performed. As such, in the case of the roller-type slide according to the present invention, when the drawer is drawn out, the drawer may be drawn out or drawn out without twisting to either side. In addition, although the protrusion member 84 fixed to the fixing groove 61 is in a separated state from the groove 145 of the moving member 140 of the automatic closing device 100 when the drawer is withdrawn, the groove 145 when the drawer is pulled out. By combining and automatically moving to the full retracted position by the force of the spring 170, even if the user does not fully draw the drawer is automatically convenient to use the drawer is in the full retracted position.

Although the present invention has been described above with reference to the accompanying drawings, those skilled in the art will understand that various modifications are possible.

1 is a perspective view of a roller slide for a known desk drawer.

Figure 2 is a perspective view of a frame for a known household appliance composed of an inner bracket.

3 is a perspective view of the outer bracket according to the present invention.

Figure 4 is a perspective view of the inner bracket according to the present invention.

5 and 6 are front and rear perspective views of the pinion used in the present invention.

7 and 8 are front and rear perspective views of the fastener used in the present invention.

FIG. 9 is a perspective view illustrating a frame configured for a home appliance in a state in which a pinion is attached to the inner bracket illustrated in FIG. 4.

10 and 11 are perspective views of the pulled-out state and the pulled-out state of the automatic closing device is fixed to the outer bracket shown in FIG.

12 is a partial cutaway perspective view showing that the outer bracket shown in Figure 3 is fixed to the inner wall of the home appliance main body.

13 is a side plan view showing that the inner bracket constituting the frame is coupled to the outer bracket fixed to the inner wall of the home appliance body.

14 is a side plan view showing a state in which the inner bracket constituting the frame is completely coupled to the outer bracket fixed to the inner wall of the home appliance body.

Claims (8)

A roller raceway is formed, the raceway is formed and the outer bracket of a predetermined length is fixed to the inner wall of the home appliance main body, the inner bracket forming the frame side wall on which the raceway is formed and the basket is attached, and one of the inner wall or the outer body In the roller-type slide for home appliances consisting of a pair of rollers fixed to one side of the frame and the other fixed to one side of the inner bracket, A rack including a gear tooth formed in the longitudinal direction of the bracket is formed at the upper end of the outer bracket, the pinion binding portion is formed on the inner bracket and the pinion is bound to the binding portion, the pinion is in the shape of a disc and the circumference of the disc There is a gear tooth meshing with the gear teeth of the rack and a roller-type slide for household appliances, characterized in that it has a fixed portion on one side of the disc. 2. The device of claim 1, further comprising a binding for binding the pinion to the inner bracket, wherein the pinion binding portion of the inner bracket is formed into a circular groove and a pinion binding is attached around the groove. Roller-type slide for home appliances, characterized in that the pinion is fixed to the inner bracket by the fixing portion of the pinion. The method of claim 2, wherein the hollow projection is formed in the center of the binding hole, the pinion of the pinion is composed of a circular protrusion formed with a groove therein and an elastic plate located along the outer periphery of the circular protrusion, the cross section at one end of the elastic plate This triangular fixing projection is formed, so that the pinion is easily inserted when the fixing portion of the pinion is inserted into the hollow portion of the hollow projection of the binding port. Roller-type slide for home appliances, characterized in that it does not separate from the binding port. 4. The roller slide according to claim 3, wherein an accommodating groove into which the elastic plate is inserted is formed on the outer circumferential surface of the pinion to the hollow protrusion. 5. The roller-type slide of claim 4, wherein the rack and pinion assembly further comprises connecting rods for linking pinions of the left and right, the connecting rods being inserted into grooves formed in the circular projections of the pinion. According to claim 1, Roller-type slide for home appliances, characterized in that the roller separation prevention jaw is formed on one side of the raceway of the outer bracket. The roller-type slide of claim 1, wherein the roller fixed to the inner bracket is positioned behind the pinion binding portion. According to claim 1, wherein the automatic closing device insertion groove is formed in the outer bracket, the automatic closing device is attached to the insertion groove, roller type for home appliances, characterized in that the inner bracket is formed with a protrusion for detachable coupling with the automatic closing device. slide.

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