KR102075759B1 - Sliding apparatus - Google Patents

Abstract

The present invention relates to a sliding device that can reduce the moving distance of the intermediate rail while maintaining the maximum moving distance of the moving rail, the sliding device is a fixed rail fixed to the main body into which the housing is inserted, the movement fixed to the housing An intermediate rail installed between the rail, the movable rail and the fixed rail and relatively movable relative to the movable rail and the fixed rail, and the intermediate rail, and moving the movable rail by twice the intermediate rail moving distance. It includes a drive means for. In this configuration, the power transmission unit is provided to maintain the maximum moving distance of the moving rail, but the moving distance of the intermediate rail can be reduced, thereby reducing the manufacturing cost of the parts, and reducing the load of the motor to save energy and the life of the motor. The effect can be increased.

Description

Sliding Device {SLIDING APPARATUS}

The present invention relates to a sliding device, and more particularly, to a sliding device provided between the main body and the housing is provided so that the opening and closing operation of the housing is smooth and smooth.

A linear sliding device made of metal is provided between the inner wall of the main body of the furniture or home appliance and the housing.

The sliding device includes a plurality of rails and a ball or roller provided between the rails, and the relative movement between the plurality of rails is smoothly performed by the rolling action of the ball or roller.

On the other hand, if the length of the housing is longer, the length of the sliding device also becomes longer and the overall weight becomes heavy, so that the fixed rail and the housing fastened to the main body so as to securely support the load at the time of withdrawal while ensuring the draw-out length of the drawer The rail of the three-stage structure provided with the intermediate rail between the moving rail fastened to is mainly used.

When the three-stage rail as described above is applied, the rack gear is installed on the fixed rail side, the pinion gear meshed with the rack gear is installed on the intermediate rail, the pinion gear is driven by a motor, and the housing is automatically driven by the motor. Drawer automatic withdrawal devices have also been developed to withdraw or withdraw.

In the automatic take-out device as described above, the rack gear is installed over the entire length of the fixed rail, thereby securing the automatic open-out draw distance of the drawer by moving the intermediate rail as much as possible with respect to the fixed rail.

As described above, there is a problem in that the manufacturing cost is increased because the rack gear has the same length as the fixed rail. In addition, since the motor must be driven so that the pinion gear travels over the entire length of the rack gear as described above, there is a problem that the load applied to the motor is increased to reduce energy consumption and durability and life of the motor.

In addition, when the sliding device is provided in a three-stage structure, the drawer is pulled out, the moving rail and the intermediate rail is slidingly moved on the fixed rail. At this time, although the fixed rail is fastened and fixed to the main body, the moving rail and the intermediate rail are slid left and right while sliding. When the shaking occurs, there is a problem that the housing hits the main body to generate impact noise and damage the housing or the main body, there is a problem that the sliding device can be broken.

Republic of Korea Patent Registration No. 10-0634366 (2006.10.09.)

The present invention has been made to solve the above problems, and an object thereof is to provide a sliding device that can reduce the moving distance of the intermediate rail while maintaining the maximum moving distance of the moving rail.

In order to solve the above problems, the present invention has an object to provide a sliding device that can prevent the left and right flow of the moving rail and the intermediate rail during the driving.

In order to achieve the above object, a sliding device according to an embodiment of the present invention, a fixed rail fixed to the main body is inserted into the housing; A moving rail fixed to the housing; An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.

Here, the drive means, the drive unit for moving the intermediate rail; And a power transmission unit provided in linkage with the intermediate rail and the moving rail and moving the moving rail by twice the moving distance of the intermediate rail.

More specifically, the drive unit, the rack gear installed on the fixed rail; And a pinion gear rotatably installed at one side of the intermediate rail and engaged with the rack gear.

The rack gear may further include a stopper protruding from the gear at a position at which the movable rail reaches the maximum withdrawal position to restrain the pinion gear from rotating further in the direction in which the movable rail is drawn out. It may be.

The power transmission unit includes: a first roller rotatably fastened to one side of the intermediate rail; A second roller rotatably fastened to the other side of the intermediate rail; A first wire having one end fastened to the moving rail and the other end fastened to the fixed rail, and disposed to surround the first roller; And a second wire having one side end fastened to the moving rail and the other end fastened to the fixed rail and disposed to surround the second roller.

The first roller and the second roller may have a diameter smaller than a distance between the moving rail and the fixed rail, and may be disposed between the moving rail and the fixed rail.

Alternatively, the first roller and the second roller may be provided to have a diameter larger than the distance between the moving rail and the fixed rail to contact the side surfaces of the moving rail and the fixed rail.

The first roller and the second roller may further include protrusions protruding toward the movable rail and the fixed rail so as to be in linear contact with the movable rail and the fixed rail.

In addition, the first roller and the second roller, the first flange is provided with a diameter smaller than the gap between the movable rail and the fixed rail disposed between the movable rail and the fixed rail; A second flange formed to be spaced apart from the first flange, the second flange having a diameter greater than a distance between the movable rail and the fixed rail, and disposed to contact a side surface of the movable rail and the fixed rail; And a guide groove formed between the first flange and the second flange to which the wire is wound.

The power transmission unit of the sliding device according to another embodiment of the present invention is a roller fastened to be rotated on the other side of the intermediate rail; A first wire having one end fastened to the moving rail and the other end fastened to the fixed rail, and disposed to surround the rotation shaft of the pinion gear; And a second wire having one end coupled to the moving rail and the other end coupled to the fixed rail and disposed to surround the roller.

Here, the pinion gear further includes a flange portion radially extending from the rotation axis and spaced apart from the gear portion by a predetermined distance, and may be provided such that the first wire is disposed between the gear portion and the flange portion. have.

The flange portion may have a diameter larger than a distance between the movable rail and the fixed rail to be in contact with the side surface of the movable rail and the fixed rail.

In this case, the flange portion may further include a protrusion protruding toward the movable rail and the fixed rail so as to be in linear contact with the movable rail and the fixed rail.

In addition, the pinion gear may be provided such that a guide slit is formed in the circumferential direction of the gear part and the first wire is disposed in the guide slit.

Here, the pinion gear may further include a protrusion protruding toward the movable rail and the fixed rail so as to make linear contact with the movable rail and the fixed rail.

In addition, the sliding device according to an embodiment of the present invention may further include an automatic closing means for automatically closing while engaging and releasing the engaging engagement with the rotating shaft protruding outward from the pinion gear when opening and closing the intermediate rail.

The driving means of the sliding device according to another embodiment of the present invention, the driving roller is rotatably fastened to one side of the intermediate rail, the gear is formed on the outer peripheral surface; A guide roller which is rotatably fastened to the other side of the intermediate rail and has gears formed on an outer circumferential surface thereof; A belt formed on an inner circumferential surface thereof to be engaged with the gears of the driving roller and the guide roller; A first fixing part provided in the moving rail and fastened and fixed to one side of the belt located on the moving rail side; And a second fixing part provided on the fixing rail and fastened and fixed to the other side of the belt located on the fixing rail side.

According to the sliding device according to the present invention, the power transmission unit is provided to maintain the maximum moving distance of the moving rail, but can reduce the moving distance of the intermediate rail can reduce the manufacturing cost of the parts, saving energy by reducing the load of the motor And it is possible to obtain the effect that the life of the motor can be increased.

In addition, according to the present invention, it is possible to prevent the impact noise and to prevent damage to the main body, the housing and the sliding device by preventing the left and right flow of the moving rail and the intermediate rail during driving.

1 is a perspective view schematically showing a sliding device according to a first embodiment of the present invention;
2 is a side view schematically showing a sliding device according to a first embodiment of the present invention;
3 is a cross-sectional view schematically illustrating the AA ′ region of FIG. 1;
Figure 4 is a side view schematically showing a state in which the sliding device is drawn out by operating the first embodiment of the present invention,
5 is a view schematically showing another embodiment of the power transmission unit in the sliding device according to the first embodiment of the present invention;
6 is a perspective view schematically showing a sliding device according to a second embodiment of the present invention;
7 is a side view schematically showing a sliding device according to a second embodiment of the present invention;
FIG. 8 is a cross-sectional view schematically illustrating the BB ′ region of FIG. 6;
9 is a side view schematically showing a state in which the sliding device is drawn out by operating the second embodiment of the present invention;
10 is a view schematically showing another embodiment of the power transmission unit in the sliding device according to the second embodiment of the present invention;
11 is a view schematically showing another embodiment of the power transmission unit in the sliding device according to the second embodiment of the present invention;
12 is a perspective view schematically showing a sliding device according to a third embodiment of the present invention;
13 is a side view schematically showing a sliding device according to a third embodiment of the present invention;
FIG. 14 is a cross-sectional view schematically illustrating the CC ′ region of FIG. 12;
15 to 19 schematically show another embodiment of the pinion gear in the sliding device according to the third embodiment of the present invention,
20 is a schematic view showing an extract of a stopper formed on a rack gear in the sliding device according to the first to third embodiments of the present invention;
21 is a view schematically showing a state in which a sliding device according to a third embodiment of the present invention is additionally provided with an automatic closing means;
22 is a perspective view schematically showing a sliding device according to a fourth embodiment of the present invention;
23 is a side view schematically showing a sliding device according to a fourth embodiment of the present invention;
FIG. 24 is a cross-sectional view schematically illustrating the DD ′ region of FIG. 21;
25 is an exploded perspective view schematically showing an extract of the first fixing part in the sliding device according to the fourth embodiment of the present invention.

In order to help understand the features of the present invention, a sliding device related to an embodiment of the present invention will be described in more detail below.

In order to help understand the embodiments described below, in adding reference numerals to the components of the accompanying drawings, it is noted that the same reference numerals for the same components, even if displayed on different drawings as possible. . In addition, in describing the present invention, if it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

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

1 and 2 are a perspective view and a side view schematically showing a sliding device according to a first embodiment of the present invention, Figure 3 is a cross-sectional view schematically showing the AA 'region of Figure 1, Figure 4 Is a side view schematically showing a state in which the sliding device is drawn out by operation. 5 is a view schematically showing another embodiment of the power transmission unit in the sliding device.

1 to 4, the sliding device 100 according to the first embodiment of the present invention includes a fixed rail 110 fixed to a main body (not shown) into which an enclosure (not shown) is inserted, and the accommodation. A moving rail 120 fixed to the sieve, and an intermediate rail installed between the moving rail 120 and the fixed rail 110 to move relative to the moving rail 120 and the fixed rail 110 ( 130, and driving means for moving the moving rail 120 by twice the intermediate rail moving distance D ₁ by moving the intermediate rail 130.

That is, the sliding device 100, as shown in Figure 4, when the driving means is operated to move the intermediate rail 130, the moving rail moving distance (D ₂ ) is the intermediate rail moving distance ( D ₁ ) twice as much.

Through this, the length of the rack gear 140 can be provided in half as compared to the prior art can reduce the manufacturing cost, the drive to rotate the pinion gear 150 by reducing the drive distance of the pinion gear 150 in half. By reducing the load applied to the motor (not shown), it is possible to save energy and extend the life of the driving motor.

More specifically, the fixing rail 110 is fastened to the main body by the bracket 112 and is fixed to the main body, the movable rail 120 is fastened and fixed to the housing to guide the movement of the housing.

The intermediate rail 130 is disposed between the fixed rail 110 and the movable rail 120, and a plurality of balls 131 are disposed therebetween to move relative to each other.

In other words, the fixed rail 110 is fixed to the main body, and when the intermediate rail 130 is moved, the movable rail 120 is moved to correspondingly withdraw or withdraw an enclosure.

The driving means moves the intermediate rail 130, and when the intermediate rail 130 moves, the driving rail is provided to move the moving rail 120 by twice the intermediate rail moving distance D ₁ .

To this end, the driving means is provided in conjunction with the drive unit for moving the intermediate rail 130, the intermediate rail 130 and the moving rail 120 and the double by the intermediate rail moving distance (D ₁ ) It includes a power transmission unit for moving the moving rail (120).

More specifically, the drive unit is installed to be rotated on one side of the rack gear 140 and the intermediate rail 130, the fixed rail 110 is engaged with the rack gear 140 and the rotational power of the drive motor It is provided with a pinion gear 150 to move the intermediate rail 130 is received.

Here, the rack gear 140 does not need to be provided over the entire length of the fixed rail 110, is provided a little longer than half the length of the fixed rail 110 is fastened and fixed to the fixed rail (110). In addition, the pinion gear 150 has a fastening groove 151 formed therein so that a rotation shaft (not shown) of the drive motor is inserted and fastened to receive the rotational power of the drive motor.

The power transmission unit includes a first roller 161 fastened to one side of the intermediate rail 130, a second roller 162 fastened to the other side of the intermediate rail 130, and one end thereof. The first wire 163 is fastened to the moving rail 120 and the other end is fastened to the fixed rail 110 and is arranged to surround the first roller 161, and one end is connected to the moving rail 120. The second wire 164 is fastened and the other end is fastened to the fixing rail 110 and is disposed to surround the second roller 162.

Here, the first fastening part 121 is fastened and fixed to the moving rail 120, and the second fastening part 111 is fastened and fixed to the fixed rail 110. That is, after one side end of the first wire 163 is fastened to the first fastening part 121, the other end is fastened to the second fastening part 111 after wrapping the first roller 161. . The second end of the second wire 164 is fastened to the first fastening part 121, and then the other end of the second wire 164 is fastened to the second fastening part 111. .

In this configuration, when the pinion gear 150 is rotated by driving the drive motor so that the movable rail 120 is drawn out, the pinion gear 150 moves forward along the rack gear 140, and at this time The intermediate rail 130 is moved forward together. When the intermediate rail 130 is moved, the second roller 162 is also moved together, so that the second wire 164 wound on the second roller 162 is pulled to move the rail 120. ) Will also move forward.

Here, according to the pulley principle, as shown in Figure 4, the moving rail moving distance (D ₂ ) moved the moving rail 120 is the intermediate rail moving distance (D ₁ ) the intermediate rail 130 is moved. Will move twice as much.

On the contrary, when the pinion gear 150 rotates in reverse when the driving motor is operated so that the movable rail 120 is retracted, the pinion gear 150 is moved backward along the rack gear 140 and the intermediate The rail 130 is moved backward together. When the intermediate rail 130 is moved, the first roller 161 is also moved together, so that the first wire 163 wound on the first roller 161 is pulled to move the rail 120. ) Will also move backwards.

The first roller 161 and the second roller 162 may be disposed on the same side of the pinion gear 150 in the intermediate rail 130 as shown in FIGS. 1 to 4.

Alternatively, as shown in FIG. 5, the first roller 171 and the second roller may be disposed on the other side of the pinion gear 150 at the intermediate rail 130. In this case, it is preferable to be provided in a form and arrangement that can minimize the size of the sliding device. In FIG. 5, only the first roller 171 is illustrated as a cross-sectional view, but the second roller is also disposed in the same form as the first roller 171.

Referring to FIG. 5, the first roller 171 and the second roller are provided with a diameter smaller than a distance between the moving rail 120 and the fixed rail 110, and the moving rail 120 and the fixed rail. It is disposed between the (110), it is disposed so as not to protrude out of the movable rail 120 and the fixed rail (110).

Therefore, the size of the sliding device can be minimized and through this, interference with other components can also be minimized.

6 and 7 are a perspective view and a side view schematically showing a sliding device according to a second embodiment of the present invention, and FIG. 8 is a cross-sectional view schematically illustrating a section BB ′ of FIG. 6, and FIG. 9. Is a side view schematically showing a state in which the sliding device is drawn out by operation. 10 and 11 are views schematically showing another embodiment of the power transmission unit in the sliding device.

6 to 9, the sliding device according to the second embodiment of the present invention is provided in the same configuration as the sliding device 100 according to the first embodiment described above, the first roller 161 and the first 2 roller 162 may be fastened to rotate on the opposite side in the intermediate rail (130). That is, as shown in FIG. 8, the first roller 161 and the second roller 162 may be disposed on the surface opposite to the pinion gear 150 at the intermediate rail 130. This is to prevent the rack gear 140 from interfering with the first roller 161 and the second roller 162. Of course, the first roller 161 and the second roller 162 may be installed on the same side as the pinion gear 150.

More specifically, the first roller 161 and the second roller 162, as shown in Figure 8, is provided with a diameter larger than the gap between the moving rail 120 and the fixed rail 110. It is disposed to contact the side of the moving rail 120 and the fixed rail (110). Through this, the moving rail 120 and the intermediate rail 130 may be limited to move in the left and right direction while sliding movement.

The first roller 161 and the second roller 162 are disposed on the opposite side to which the pinion gear 150 is fastened on the intermediate rail 130. This is because, when the pinion gear 150 is disposed on the same side to which the pinion gear 150 is fastened in the intermediate rail 130, it may occur with the rack gear 140. However, a gap for forming the first roller 161 is formed between the fixed rail 110 and the rack gear 140 so as not to interfere with each other, or if the size of the rack gear is adjusted, the first roller 161. ) And the second roller 162 may be disposed on the same side to which the pinion gear 150 is fastened on the intermediate rail 130.

In addition, the first roller 161 and the second roller 162 protrude toward the movable rail 120 and the fixed rail 110 to be in line contact with the movable rail 120 and the fixed rail 110. It may further comprise a projection.

That is, as shown in FIG. 10, a semicircular protrusion 165 protruding outward from the side of the first roller 161 is formed, and the protrusion 165 is the movable rail 120 and the fixing. It comes in contact with the rail 110. Through this, frictional force may be reduced by minimizing the contact area between the movable rail 120 and the fixed rail 110. In FIG. 10, only the protrusion 165 formed on the first roller 161 is illustrated, but the protrusion may be formed on the second roller in the same manner.

Furthermore, as shown in FIG. 11, the first roller 170 is provided with a diameter smaller than the distance between the movable rail 120 and the fixed rail 110, and the movable rail 120 and the fixed rail 110 are provided. A first flange 171 disposed between the first flange 171 and the first flange 171 spaced apart from each other and provided to a diameter larger than a distance between the moving rail 120 and the fixed rail 110. 120 and the second flange 172 disposed to contact the side of the fixing rail 110, and formed between the first flange 171 and the second flange 172, the first wire 163 is The winding includes a guide groove 173.

Through such a shape, the size of the first roller 170 may be reduced to protrude outward, thereby minimizing the sliding device, and minimizing interference with other components.

In FIG. 11, the first roller 170 is disposed on the opposite side to which the pinion gear 150 is fastened from the intermediate rail 130. However, the present invention is not limited thereto, and the pinion gear 150 may be fastened from the intermediate rail 130. May be arranged on the same side. In this case, it is preferable that the size of the rack gear is adjusted so that the first roller 170 and the rack gear 140 do not interfere with each other.

In addition, although only the first roller 170 is illustrated in FIG. 11, the second roller may also be provided in the same form.

12 and 13 are a perspective view and a side view schematically showing a sliding device according to a third embodiment of the present invention, FIG. 14 is a cross-sectional view schematically showing the CC ′ region of FIG. 12, and FIG. 15. 19 is a view schematically showing another embodiment of the pinion gear in the sliding device.

In the sliding device 200 according to the third embodiment of the present invention, the same reference numerals as the sliding device 100 according to the first embodiment disclosed in FIGS. 1 to 4 correspond to the same components, and thus, detailed description thereof is omitted. do. That is, the sliding device 200 according to the third embodiment is partially different from the driving device and the sliding device 100 according to the first embodiment.

12 to 14, the driving means of the sliding device 200 includes a driving unit for moving the intermediate rail 130, the intermediate rail 130, and the moving rail 120 in association with the intermediate rail 130. It includes a power transmission unit for moving the moving rail 120 by twice the moving distance.

Here, the drive unit is installed to be rotated on one side of the rack gear 140 and the intermediate rail 130, the fixed rail 110 is engaged with the rack gear 140 and receives the rotational power of the drive motor to the And a pinion gear 210 for moving the intermediate rail 130.

The power transmission unit has a roller 221 fastened to the other side of the intermediate rail 130, one end of which is fastened to the movable rail 120, and the other end of which is fastened to the fixed rail 110. The first wire 222 disposed to surround the rotation shaft of the gear 210, and one end is fastened to the movable rail 120, the other end is fastened to the fixed rail 110, and wrapped around the roller 221 The second wire 223 is disposed so as to.

That is, in the sliding device 200 according to the second embodiment, the first wire 222 is wound around the pinion gear 210 so that only one roller may be used.

More specifically, the first fastening part 121 is fastened and fixed to the moving rail 120, and the second fastening part 111 is fastened and fixed to the fixed rail 110. That is, the one end of the first wire 222 is wrapped in the pinion gear 210 in a state where the one end of the first wire 222 is fastened to the first fastening portion 121, and the other end is fastened to the second fastening portion 111. In addition, after the one end of the second wire 223 is fastened to the first fastening part 121, the other end of the second wire 223 is fastened to the second fastening part 111.

To this end, the pinion gear 210 is radially extended from the rotation shaft 211, the flange portion 213 is formed to be spaced apart from the gear portion 212 by a predetermined interval. In this configuration, a groove is formed between the gear portion 212 and the flange portion 213, where the first wire 222 is inserted.

Alternatively, as shown in FIG. 15, the pinion gear 230 has a guide slit 233 formed in the circumferential direction of the gear unit 232, and the first wire 222 is inserted into the guide slit 233. It may be arranged to be arranged. In this configuration, the pinion gear 230 is gear-fastened to the rack gear 140 in a state in which the first wire 222 is inserted into the guide slit 233 formed in the gear unit 232, The separation of the one wire 222 can be prevented.

Furthermore, as shown in FIG. 16, the flange portion 213 is provided with a diameter larger than a distance between the movable rail 120 and the fixed rail 110, and the movable rail 120 and the fixed rail 110. It may be arranged to contact the side of the). Through this, the moving rail 120 and the intermediate rail 130 may be limited to move in the left and right direction while sliding movement.

In this case, although not shown in the drawing, the roller 221 may also be provided to have the same diameter as the flange portion 213 and disposed to contact the side surfaces of the movable rail 120 and the fixed rail 110.

As shown in FIG. 17, the flange portion 213 protrudes toward the movable rail 120 and the fixed rail 110 to be in line contact with the movable rail 120 and the fixed rail 110. It may be formed by further comprising a projection 215.

That is, a semicircular protrusion 215 protruding outward is formed on the side surface of the flange portion 213, and the protrusion 215 is in contact with the movable rail 120 and the fixed rail 110. Through this, frictional force may be reduced by minimizing the contact area between the movable rail 120 and the fixed rail 110. In FIG. 17, only the projections 215 formed on the flange portion 213 of the pinion gear 210 are illustrated, but the projections may be formed on the roller in the same manner.

18, the pinion gear 230 has a guide slit 233 formed in the circumferential direction of the gear unit 232, and the first wire 222 is inserted into the guide slit 233. It may be arranged to be arranged. In this configuration, the pinion gear 230 is gear-fastened to the rack gear 140 in a state in which the first wire 222 is inserted into the guide slit 233 formed in the gear unit 232, The separation of the one wire 222 can be prevented.

In this case, the pinion gear 230 is provided with a diameter larger than the gap between the movable rail 120 and the fixed rail 110 is disposed to contact the side of the movable rail 120 and the fixed rail 110. In addition, the movable rail 120 and the intermediate rail 130 may be limited to move in the left and right direction while slidingly moving.

In addition, the pinion gear 230, as shown in FIG. 19, protrudes toward the movable rail 120 and the fixed rail 110 to be in line contact with the movable rail 120 and the fixed rail 110. The protrusion 235 may be further included.

The sliding device according to the first to third embodiments of the present invention is a stopper that restrains the pinion gear from rotating further on the rack gear to prevent the drawer body from being separated from the main body when the movable rail reaches the maximum withdrawal position. It is further provided.

FIG. 20 is a schematic view showing an extract of a stopper formed on a rack gear in the sliding device according to the first to third embodiments of the present invention.

Referring to FIG. 20, the stopper 142 protrudes from the rack gear 140 in the gear part 141 at the position where the movable rail reaches the maximum withdrawal position, so that the pinion is in the direction in which the movable rail is drawn out. Constrain the gear 150 to no longer rotate.

Furthermore, the sliding device according to the third embodiment of the present invention may further include an automatic closing means for automatically closing the opening and closing of the housing.

FIG. 21 is a view schematically showing a state in which a sliding device according to a third embodiment of the present invention is further provided with an automatic closing means.

Referring to FIG. 21, the automatic closing means 400 may include a housing body 410 disposed on the side of the rack gear 140, and an intermediate rail 130 disposed in the housing body 410. It includes a locking portion 420 engaging with the rotating shaft 211 protruding outward from the pinion gear 210 provided in the intermediate rail 130 when moving to.

That is, when the housing moves in the opening direction, the rotation shaft 211 of the pinion gear 210 is released from the locking portion 420, and when the housing moves in the closing direction, the rotation shaft of the pinion gear 210 211) is engaged with the engaging portion 420 can be automatically moved to the closed position.

Here, the automatic closing means is a device that is conventionally used, its detailed configuration and operation will be omitted.

22 and 23 are a perspective view and a side view schematically showing a sliding device according to a fourth embodiment of the present invention, and FIG. 24 is a cross-sectional view schematically illustrating the DD ′ region of FIG. 21, and FIG. 25. Is an exploded perspective view schematically showing an extract of the first fixing part from the sliding device.

In the sliding device 300 according to the fourth embodiment of the present invention, the same reference numerals as the sliding device 100 according to the first embodiment disclosed in FIGS. 1 to 4 correspond to the same components, and thus, detailed description thereof is omitted. do. That is, the sliding device 300 according to the fourth embodiment is partially different from the driving device and the sliding device 100 according to the first embodiment.

22 to 25, the driving means of the sliding device 300 according to the fourth embodiment of the present invention is fastened to be rotated on one side of the intermediate rail 130, the gear 311 is formed on the outer peripheral surface drive motor The driving roller 310 is rotated by receiving the rotational power of the guide, the guide roller 320 is fastened to be rotated on the other side of the intermediate rail 130, the gear 321 is formed on the outer peripheral surface, and the gear teeth 331 on the inner peripheral surface A belt 330 formed on the driving roller 310 and the gears 311 and 321 of the guide roller 320 and the movable rail 120 and positioned on the movable rail 120. One side of the belt 330 is fastened and fixed to the first fixing portion 340, and the fixed rail 110 and the other side of the belt 330 located on the fixed rail 110 side is fastened and fixed And a fixing part 350.

In such a configuration, when the driving roller 310 is rotated by operating the driving motor, the belt 330 is rotated so that the driving roller 310 moves together with the intermediate rail 130, and the moving rail ( 120 is moved together by the movement of the valve 330 fastened to the first fixing portion 340. In this case, the moving distance of the moving rail 120 is twice the moving distance of the intermediate rail 130.

That is, the sliding device 300 according to the fourth embodiment can achieve the same effect while reducing the number of parts by forming gear teeth on the rollers and using belts instead of wires, without using rack gears and pinion gears. have.

In addition, the first fixing part 340 and the second fixing part 350 are geared to be engaged with the gear 331 of the belt 330 can be fastened without a separate fastening member.

More specifically, referring to FIG. 25, the first fixing part 340 includes a fixing part body 341 fastened to the moving rail 120 and the belt 330 in the fixing part body 341. The slit groove 342 is formed to be inserted, the gear 333 formed in the slit groove 342 and the gear 331 of the belt 330 is engaged, and the belt 330 in the slit groove 342 Fastening member inserted into the slit groove 342 so that the gear 331 of the belt 330 is pressed against the gear 343 formed in the slit groove 342 so that the gear 331 is inserted into the slit groove 342. (344).

Although not shown separately in the drawing, the configuration of the second fixing part 350 is also provided in the same manner as the first fixing part 340.

With the configuration of the first and second fixing parts 340 and 350, the belt 330 may be easily fastened and fixed in any form. That is, the belt 330 is provided in two belt shapes, respectively, after the driving roller 310 and the guide roller 320 are wrapped, and fastened, or provided in one belt shape, the driving roller 310 and the guide roller. After the 320 is inserted into one of the fixing portion, both ends may be inserted into and fastened to the other fixing portion. Alternatively, even when provided in a caterpillar form, the driving roller 310 and the guide roller 320 may be wrapped and inserted into two fixing parts, and then may be fastened.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

100, 200, 300: sliding device
110: fixed rail 120: moving rail
130: middle rail 140: rack gear
150: pinion gear
161: first roller 162: second roller
163: first wire 164: second wire
210, 230: pinion gear 221: roller
222: first wire 223: second wire
310: driving roller 320: guide roller
330: belt 340: first fixing portion
350: second fixing part
400: automatic closing means 410: housing body
420: catching part

Claims (17)

A fixed rail fixed to the main body into which the housing is inserted;
A moving rail fixed to the housing;
An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And
And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive means,
A driving unit for moving the intermediate rail; And
And a power transmission unit provided in linkage with the intermediate rail and the moving rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive unit,
A rack gear installed at the fixed rail; And
And a pinion gear installed to rotate on one side of the intermediate rail and engaged with the rack gear.
The power transmission unit,
A first roller fastened to be rotated at one end in the longitudinal direction from the other side of the intermediate rail, which is an opposite side of the one side to which the pinion gear is fastened;
A second roller fastened to be rotated at the other end in the longitudinal direction at the other side of the intermediate rail, which is an opposite side of the one side at which the pinion gear is fastened;
A first wire having one end fastened to the moving rail and the other end fastened to the fixed rail, and disposed to surround the first roller; And
And a second wire having one end coupled to the moving rail and the other end coupled to the fixed rail and disposed to surround the second roller.
The first roller and the second roller,
A sliding device provided with a diameter smaller than the gap between the movable rail and the fixed rail disposed between the movable rail and the fixed rail.
A fixed rail fixed to the main body into which the housing is inserted;
A moving rail fixed to the housing;
An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And
And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive means,
A driving unit for moving the intermediate rail; And
And a power transmission unit provided in linkage with the intermediate rail and the moving rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive unit,
A rack gear installed at the fixed rail; And
And a pinion gear installed to rotate on one side of the intermediate rail and engaged with the rack gear.
The power transmission unit,
A first roller fastened to be rotated at one end in a longitudinal direction from the other side of the intermediate rail, which is an opposite side of the one side to which the pinion gear is fastened;
A second roller fastened to be rotated at the other end in the longitudinal direction from the other side of the intermediate rail, which is an opposite side of the one side to which the pinion gear is fastened;
A first wire having one end fastened to the moving rail and the other end fastened to the fixed rail, and disposed to surround the first roller; And
And a second wire having one end coupled to the moving rail and the other end coupled to the fixed rail and disposed to surround the second roller.
The first roller and the second roller,
Sliding device is provided with a diameter larger than the distance between the moving rail and the fixed rail disposed in contact with the side of the moving rail and the fixed rail.
A fixed rail fixed to the main body into which the housing is inserted;
A moving rail fixed to the housing;
An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And
And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive means,
A driving unit for moving the intermediate rail; And
And a power transmission unit provided in linkage with the intermediate rail and the moving rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive unit,
A rack gear installed at the fixed rail; And
And a pinion gear installed to rotate on one side of the intermediate rail and engaged with the rack gear.
The power transmission unit,
A first roller fastened to be rotated at one end in a longitudinal direction from the other side of the intermediate rail, which is an opposite side of the one side to which the pinion gear is fastened;
A second roller fastened to be rotated at the other end in the longitudinal direction from the other side of the intermediate rail, which is an opposite side of the one side to which the pinion gear is fastened;
A first wire having one end fastened to the moving rail and the other end fastened to the fixed rail, and disposed to surround the first roller; And
And a second wire having one end coupled to the moving rail and the other end coupled to the fixed rail and disposed to surround the second roller.
The first roller and the second roller,
A first flange having a diameter smaller than an interval between the movable rail and the fixed rail and disposed between the movable rail and the fixed rail;
A second flange formed to be spaced apart from the first flange, the second flange having a diameter greater than a distance between the movable rail and the fixed rail, and disposed to contact a side surface of the movable rail and the fixed rail; And
A guide groove formed between the first flange and the second flange to wind a wire;
Sliding device comprising a.
A fixed rail fixed to the main body into which the housing is inserted;
A moving rail fixed to the housing;
An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And
And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive means,
A driving unit for moving the intermediate rail; And
And a power transmission unit provided in linkage with the intermediate rail and the moving rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive unit,
A rack gear installed at the fixed rail; And
And a pinion gear installed to rotate on one side of the intermediate rail and engaged with the rack gear.
The power transmission unit,
A roller rotatably fastened to the other side of the intermediate rail;
A first wire having one end fastened to the moving rail and the other end fastened to the fixed rail, and disposed to surround the rotation shaft of the pinion gear; And
And a second wire having one end coupled to the moving rail and the other end coupled to the fixed rail and disposed to surround the roller.
The pinion gear is
A flange portion extending radially from a rotation axis to contact a side surface of the movable rail and the fixed rail so as to have a diameter greater than a distance between the movable rail and the fixed rail, the flange portion being spaced apart from the gear portion at a predetermined interval; Including more,
And the first wire is disposed between the gear portion and the flange portion.
A fixed rail fixed to the main body into which the housing is inserted;
A moving rail fixed to the housing;
An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And
And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive means,
A driving unit for moving the intermediate rail; And
And a power transmission unit provided in linkage with the intermediate rail and the moving rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive unit,
A rack gear installed at the fixed rail; And
And a pinion gear installed to rotate on one side of the intermediate rail and engaged with the rack gear.
The power transmission unit,
A roller rotatably fastened to the other side of the intermediate rail;
A first wire having one end coupled to the moving rail and the other end coupled to the fixed rail, the first wire being disposed to surround the pinion gear; And
And a second wire having one end coupled to the moving rail and the other end coupled to the fixed rail and disposed to surround the roller.
The pinion gear is
The guide slit is formed in the circumferential direction in the gear portion, the sliding device in which the first wire is disposed in the guide slit.
The method according to any one of claims 1 to 5,
The rack gear is,
A stopper protruding from the gear at a position where the movable rail reaches a maximum drawing position to restrain the pinion gear from rotating further in the direction in which the movable rail is drawn out;
Sliding device further comprising a.
The method of claim 2,
The first roller and the second roller,
A protrusion protruding toward the movable rail and the fixed rail such that the movable rail and the fixed rail are in linear contact with the movable rail;
Sliding device further comprising a.
The method of claim 4, wherein
The flange portion,
A protrusion protruding toward the movable rail and the fixed rail such that the movable rail and the fixed rail are in linear contact with the movable rail;
Sliding device further comprising a.
The method of claim 5,
The pinion gear is
A protrusion protruding toward the movable rail and the fixed rail such that the movable rail and the fixed rail are in linear contact with the movable rail;
Sliding device further comprising a.
The method according to any one of claims 1 to 5,
Automatic closing means for automatically closing while engaging and releasing the engaging engagement with the rotating shaft protruding outward from the pinion gear when opening and closing the intermediate rail;
Sliding device further comprising a.
A fixed rail fixed to the main body into which the housing is inserted;
A moving rail fixed to the housing;
An intermediate rail installed between the movable rail and the fixed rail to move relative to the movable rail and the fixed rail; And
And driving means for moving the intermediate rail and moving the moving rail by twice the moving distance of the intermediate rail.
The drive means,
A driving roller fastened to one side of the intermediate rail and having a gear formed on an outer circumferential surface thereof;
A guide roller which is rotatably coupled to the other side of the intermediate rail and has gears formed on an outer circumferential surface thereof;
A belt formed on an inner circumferential surface thereof to be engaged with the gears of the driving roller and the guide roller;
A first fixing part provided in the moving rail and fastened and fixed to one side of the belt located on the moving rail side; And
And a second fixing part provided at the fixing rail and fastened and fixed to the other side of the belt located on the fixing rail side.
The first fixing part and the second fixing part,
A fixed part body fastened to the moving rail;
A slit groove formed to insert the belt in the fixing part body;
A gear formed in the slit groove and formed such that gears of the belt are engaged; And
A fastening member inserted into the slit groove to be fastened so that the gear of the belt is engaged with the gear formed in the slit groove in a state where the belt is inserted into the slit groove so as not to be separated;
Sliding device comprising a.
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