KR20070001201U - Automatic opening apparatus for a drawer - Google Patents

Abstract

The present invention relates to a switchgear, and more particularly to a switchgear that can open and close the drawer automatically by enabling the switchgear used in furniture or drawers to be electrically operated to improve the convenience of life. will be. An automatic opening and closing device of a drawer according to the present invention includes a motor, a first pinion gear coaxially connected with the motor, a first belt gear meshing with the first pinion gear, and a second meshing mesh with the first belt gear. A second pinion gear, a drive gear coaxially connected to the second pinion gear, a guide panel installed under the side plate of the drawer, and a second belt gear provided on the guide panel and engaged with the drive gear. The belt gear is installed in a groove provided in the guide panel, and further includes a plurality of rollers fixed to the roller mounting plate attached to the guide panel, and a roller guide on which the roller is placed.

Drawer, automatic, motor, gear, roller

Description

AUTOMATIC OPENING APPARATUS FOR A DRAWER}

1 is a plan view showing an automatic opening and closing device of the drawer according to the present invention.

2 is a cross-sectional view showing an automatic switching device according to the present invention.

3A is a cross-sectional plan view of a portion A of FIG. 2, and FIG. 3B is a side view.

4 is a cross-sectional view of portion A of FIG. 2.

5 is a view showing a guide panel of the automatic switching device according to the present invention, Figure 5a is a cross-sectional view, Figure 5b is a plan view thereof.

Figure 6 is a view showing another embodiment of the roller unit according to the present invention, Figure 6a is a sectional view thereof, Figure 6b is a sectional view of the roller and the roller guide formed on the drawer side plate, Figure 6c is a plan view thereof.

7 is a view showing a plurality of drawers, a control box and a power cable box according to the present invention.

8 is a plan view showing an automatic switching device according to another embodiment of the present invention.

9A is a cross-sectional view of the automatic switching device shown in FIG. 8, and FIG. 9B is a side view thereof.

<Description of the symbols for the main parts of the drawings>

1: switchgear 2: drawer

2a: drawer side plate 3: drawer case side plate

10 motor 11: first pinion gear

11a: 2nd pinion gear 12: drive gear

13: first belt gear 14: second belt gear

14a: groove 15: guide panel

16 gear fixing panel 20 roller

21: roller mounting plate 22: roller guide

23: first roller 24: second roller

25: first roller guide 26: second roller guide

30: control box 40: power cable box

41: power cable

51: drive motor 52: drive gear

53: motor fixing part 54: drive rail

55: rail fixing part 56: rail connecting frame

57: drawer support frame

The present invention relates to a switchgear, and more particularly to the switchgear that can open and close the drawer automatically by enabling the switchgear used in furniture, drawers, etc. to improve the convenience of life. It is about.

In the present specification, the opening and closing device may be used in various drawers or doors as well as drawers used in desk drawers or kitchen furniture, but for the convenience of description, the opening and closing device used in the desk drawers will be described as an example.

In general, in order to open and close a drawer used for a desk or furniture, the user directly opens and closes by pulling or pushing the handle of the drawer by hand. However, this conventional drawer is inconvenient because the user has to open and close it directly.

20-1985-0015751 is proposed as a proposal for improving such a manual drawer. The application is to install a binding pin in the drive device consisting of a motor, a gear, a reduction gear, an electric gear and a pulley and the binding pin is fitted with a connection pin attached to the inner end of the drawer to drive the drive device and the binding pin; The drawer is opened and closed by fitting with the connecting pin.

However, since the drawer and the driving device rely only on the coupling between the connecting pin and the binding pin, the connection pin and the binding pin are easily misaligned according to the load applied to the drawer. have.

Accordingly, there is a need for a switchgear capable of smoothly and smoothly opening and closing the drawer and allowing a stable combination of the drawer and the switchgear without disturbing the opening and closing of the drawer.

The present invention is intended to solve the problems of the prior art described above, even if the load is increased by having an automatic motor and stably fixing the chain belt to the drawer side plate and storing the object in the drawer by a gear and a motor engaged with the chain belt. A stable combination of a drawer and an opening and closing device is possible and can be automatically opened and closed to provide a more convenient use and an automatic opening and closing device of a drawer without malfunction.

In addition, the present invention is to provide a switchgear capable of more smooth and smooth opening and closing operation by mounting a roller in the drawer.

In addition, the present invention is fixed to the drive motor behind the drawer, the drive gear connected to the drive motor and the drive rail can be automatically opened and closed by engaging the drive gear, the drive motor or the drive rail, etc., even when the drawer is opened and closed. Another object of the present invention is to provide an automatic opening and closing device for a drawer that is simple and beautiful in appearance by not exposing the driving means or the like to the outside.

In order to achieve the above object, the automatic opening and closing device of the drawer according to the present invention, a motor, a first pinion gear coaxially connected with the motor, a first belt gear meshing with the first pinion gear, and the first 2. A second pinion gear meshing with the belt gear, a drive gear coaxially connected to the second pinion gear, a guide panel installed under the side plate of the drawer, and a second gear provided on the guide panel and engaged with the drive gear. It is characterized by having a belt gear.

The second belt gear may be installed in a groove provided in the guide panel.

In addition, the rollers are fixed to the roller mounting plate attached to the guide panel, characterized in that it further comprises a roller guide on which the roller is placed.

It further comprises a gear fixing panel surrounding the first pinion gear, the first belt gear and the second pinion gear, characterized in that the roller guide is provided on the top of the gear fixing panel.

The roller may include a first roller fixed to the gear fixing panel, a second roller fixed to the guide panel, and the roller guide may include a first roller guide provided on the guide panel and the gear. It characterized in that it further comprises a second roller guide provided on the fixing panel.

In addition, it characterized in that it further comprises a power cable box for receiving a power cable connected to the motor.

The power cable box is characterized by installing the drawer case side plate grooved.

The apparatus may further include a control box provided with a plurality of switches for forward and reverse rotation driving of the plurality of motors to open and close the plurality of drawers.

In addition, the automatic opening and closing device of the drawer according to the present invention, a drive motor, a drive gear coaxially connected to the drive motor, a motor fixing portion for fixing the drive motor to the drawer, and a gear is formed on the surface of the drive gear And a driving rail engaged with the support rail, and provided at a lower portion of the driving rail to support the driving rail, and fixed to a drawer case side plate by fixing means.

In addition, the drawer support frame for supporting a drawer bottom plate is further provided, wherein the rail fixing portion is characterized in that the opposite side of the side fixed to the drawer case side plate is bent to fit into the drawer support frame.

Hereinafter, with reference to the accompanying drawings will be described in detail by the embodiment of the opening and closing device of the drawer according to the present invention.

1 is a plan view showing the automatic opening and closing device of the drawer according to an embodiment of the present invention, Figure 2 is a cross-sectional view, Figure 3 and Figure 4 is a view showing a portion of FIG.

1 to 4, the opening and closing device 1 according to an embodiment of the present invention is installed on the drawer side plate (2a) and drawer case side plate (3) of the drawer (2).

The opening and closing device 1 includes a motor 10, pinion gears 11 and 11a coaxially connected with the motor 10, a drive gear 12, and a belt gear 13 and 14. The pinion gear is composed of a first pinion gear 11 coaxially connected with the motor 10 and a second pinion gear 11a coaxially connected with the drive gear 12, wherein the first and second The pinion gears 11 and 11a mesh with the belt gears.

The motor 10 and the first pinion gear 11 are installed at the lower rear of the drawer 2, and the second pinion gear 11a and the drive gear 12 are installed at the lower front of the drawer.

The belt gear is composed of an endless first belt gear 13 meshing with the first pinion gears 11 and 11a and a second belt gear 14 meshing with the drive gear 12. The second belt gear 14 is installed in a guide panel to be described later.

3 and 4, the first and second pinion gears 11 and 11a and the first belt gear 13 are surrounded by a gear fixing panel 16. As shown in FIG. The gear fixing panel 16 is formed in a substantially rectangular shape and is fixed to the drawer case side plate 3 by fixing means (not shown). The gear fixing panel 16 has a structure in which a portion contacting the drawer case side plate 3 extends to form a wide contact area. As shown in FIG. 3B, a plurality of through holes are formed to form a screw or screw in the through hole. A fixing means such as a bolt is inserted and fixed to the drawer case side plate 3, and the pinion gear is fixed to the gear fixing panel 16 by a separate fixing means. As a result, the motor 10, the pinion gears 11 and 11a, the first belt gear 13, and the drive gear 12 may be firmly fixed to the drawer case side plate 3.

On the other hand, as shown in Fig. 4 and 5, the guide panel 15 is provided at the lower portion of the drawer side plate (2a). The guide panel 15 is formed in a substantially '-' shape, and a groove 14a is formed on a surface of the guide panel 15 that is in contact with the lower portion of the drawer side plate 2a. The guide panel 15 in which the groove 14a is formed is formed by forming a groove in the lower surface of the drawer side plate 2a and fitting it. In addition, the guide panel 15 is fixed by fixing means (not shown) at the drawer side plate 2a and a plurality of places. In the groove 14a of the guide panel 15, a second belt gear 14 meshing with the drive gear 12 is formed.

In the present embodiment, the guide panel 15 has been described to fit the groove by fitting the lower side of the drawer side plate (2a) as an example, but is not necessarily limited to this, without forming a groove in the lower side of the drawer side plate, the groove ( 14a) may also be fixed to the lower side of the drawer side plate by fixing means such as screws.

In the opening and closing device according to the present invention having the above-described configuration, when the motor 10 is driven forward and backward, the first pinion gear 11 coaxially connected to the motor 10 causes the forward and reverse rotation. In response to the forward and reverse rotation of the first pinion gear 11, the first belt gear 13 meshing with the first pinion gear 11 rotates forward and backward, and accordingly, the second pinion gear ( 11a) meshes with the first belt gear 13 to rotate forward and backward. Then, the drive gear 12 coaxially connected with the second pinion gear 11a is rotated forward and backward, and the second belt gear 14 meshing with the drive gear 12 moves forward and backward. As the second belt gear 14 moves forward and backward, the drawer 2 fixed thereto moves forward and backward to open and close.

As described above, in the opening and closing apparatus according to the present invention, since the load of the drawer in which an object is stored is transmitted to the drawer case through the belt gear, the driving gear and the pinion gear meshing with the gear, the meshing between the gears malfunctions. The drawer can be opened and closed automatically.

In addition, the opening and closing device according to the present invention, it is possible to implement a more smooth and smooth opening and closing operation by adding the opening and closing operation of the drawer by the roller. To this end, the opening and closing device according to the present invention further comprises a roller 20 and the roller guide 22.

As shown in FIGS. 4, 5A, and 5B, the guide panel 15 further includes a plurality of roller-mounted plates 21 protruding from the guide panel 15 and extending substantially vertically. It is installed. The roller 20 is attached to the roller mounting plate 21.

In addition, the upper portion of the gear fixing panel 16, the roller guide 22 is formed along the longitudinal direction of the gear fixing panel 16.

In the opening and closing device having the above-described configuration, the drive gear 12 is rotated forward and backward in accordance with the drive of the motor 10, and accordingly of the second belt gear 14 meshing with the drive gear 12 When the drawer 2 moves forward and backward according to the forward and backward movement, the forward and backward movement of the drawer 2 is accompanied by rolling motion on the roller guide 22 of the roller 20, and the forward and backward movement of the drawer. Can be made more smoothly and smoothly.

As another example of the roller structure of the opening-and-closing apparatus by this invention, a part of some roller is formed in the drawer side plate, and a part is formed in the drawer case side plate, for example.

Figure 6 is a view showing another embodiment of the roller unit according to the present invention, Figure 6a is a sectional view thereof, Figure 6b is a sectional view of the roller and the roller guide formed on the drawer side plate, Figure 6c is a plan view thereof.

As shown in Figure 6a to 6c, the roller according to another embodiment of the present invention is installed in the front of the drawer and the first roller 23 is fixed to the gear fixing panel 16 and the rear of the drawer The second roller 24 is fixed to the guide panel 15.

In addition, the guide panel 15 is attached to the first roller guide 25 which protrudes from the guide panel and extends shortly vertically downward. The roller guide 25 functions to guide the first roller 23 so that there is no positional shift from the upper side of the first roller 23. In addition, the gear fixing panel 16 is attached with a second roller guide 26 protruding from the gear fixing panel and extending shortly vertically downward. The roller guide 26 functions to guide the second roller 24 so that the position of the second roller 24 is not shifted from the upper side of the second roller 24.

In the opening and closing device having the above-described configuration, the drive gear 12 is rotated forward and backward in accordance with the drive of the motor 10, and accordingly of the second belt gear 14 meshing with the drive gear 12 When the drawer 2 moves forward and backward according to the forward and backward movement, the forward and backward operation of the drawer 2 is performed by the first roller 23 attached to the drawer case side plate. 25) rotates in place according to the forward and backward operation, and the rear second roller 24 attached to the drawer side plate rotates along the second roller guide 26 according to the forward and backward movement of the drawer to perform the forward and backward operation. Thus, the forward and backward operation of the drawer can be made more smoothly and smoothly.

As shown in FIG. 7, the opening and closing device according to the present invention is provided in plural places at the bottom of the plurality of drawers. In addition, the plurality of switchgear, is electrically connected to the control box 30 via a power cable.

The control box 30 may be formed on an upper surface or a side of a drawer case, and a plurality of open / close switches (not shown) are provided to drive each drawer 2.

The power cable for electrically connecting the control box 30 and the opening and closing device 1 is housed in the power cable box 40 so that the power cable is not entangled and damaged in accordance with the opening and closing of the drawer 2. Can be.

The power cable box 40 may be provided by forming a groove inside the drawer case side plate 3, or may have a configuration that is attached to the drawer case side plate 3 by configuring a separate cable box.

Hereinafter, another embodiment of the present invention will be described with reference to FIGS. 8 to 9B.

8 is a plan view showing an automatic switching device according to another embodiment of the present invention, Figure 9a is a sectional view thereof, Figure 9b is a side view thereof.

As shown in Figure 8 to 9b, the automatic opening and closing device of the drawer according to another embodiment of the present invention, the drive motor 51, the drive gear 52, the drive rail 54 and the rail fixing portion ( 55).

The drive motor 51 is driven by a separate power source and a control unit (not shown), and the drive gear 52 is coaxially connected to the drive motor 51 to drive the drive gear 52 according to the drive of the drive motor. ) Will rotate. As shown in FIG. 8, the drive motor 51 is preferably arranged at the rear side of the drawer 2 so that the drive motor 51 is not exposed to the outside even when the drawer is opened or closed.

The drive motor 51 is fixed to the back plate of the drawer by a motor fixing part 53 formed in a substantially N-shape.

In addition, a drive gear 52 is coaxially connected to the drive motor 51. The drive gear 52 is rotated by the drive of the drive motor 51, a drive rail 54 is disposed in the lower portion of the drive gear along the opening and closing direction of the drawer.

The drive rail 54 is provided with tooth-shaped teeth on the surface thereof, and meshes with the teeth of the drive gear 52 such that the drive gear 52 is movable back and forth on the drive rail 54.

A rail fixing part 55 is provided below the driving rail 54. One end of the rail fixing part 55 is fixed to the drawer case side plate 3 by fixing means 58 such as nails.

As shown in FIG. 8, the driving rail 54 and the rail fixing part 55 are disposed along the longitudinal direction of the drawer case side plate 3, and the rail fixing part 55 is disposed on both sides of the drawer. The rail fixing part of the side on which the drive motor is installed does not need to be disposed to the rear end of the drawer case side plate 3 and can be adjusted to an appropriate length.

The other end of the rail fixing part 55 is bent into a question mark (?) Shape to form a rail connecting frame 56, and the bent rail connecting frame 56 is configured to be fitted to the drawer support frame 57. . By bending in the shape of a question mark as described above, it is possible to more stably support the drawer support frame 57, as compared to simply bent like a L-shape.

The drawer support frame 57 is formed in a U-shaped shape in which a part of the lower part is cut, and the drawer support frame 57 is fixedly disposed at both sides of the lower part of the drawer bottom plate 2b. The drawer support frame 57 is disposed along the longitudinal direction of the drawer.

Looking at the driving of the automatic opening and closing device according to the present embodiment having the same configuration as described above, when the drive motor 51 is driven by clicking a switch (not shown) or the like, the driving motor 51 is driven according to the driving. The drive gear 52 connected to the drive motor is rotated, and the drive motor connected to the drive gear 52 and the drawer connected to the drive motor are generally mounted on the drive rail engaged with the drive gear as the drive gear 52 rotates. It will be moved back and forth.

The load applied by the drive motor, the drive gear, and the drawer in which the goods are stored is transmitted to and supported by the rail fixing part through drawer support frames provided on both sides of the bottom of the drawer bottom plate.

The embodiments and the drawings attached to this specification are merely to clearly show some of the technical ideas included in the present invention, and can be easily inferred by those skilled in the art within the scope of the technical ideas included in the specification and drawings of the present invention. It is obvious that both the modifications and the specific embodiments are included in the scope of the technical idea of the present invention.

According to the opening and closing device of the present invention, from the conventional manual drawer opening and closing method can be improved by the automatic opening and closing method and there is an advantage that can facilitate the convenience of life.

As described above, the switchgear according to the present invention can be opened and closed automatically through a motor, a plurality of pinion gears, a first belt gear, a drive gear, and a second belt gear installed at the lower side of the drawer side plate, thereby providing a more stable opening and closing operation. Can be implemented.

In addition, since the load of the drawer in which the object is stored is transmitted to the drawer case through the belt gear, the driving gear and the pinion gear to be engaged with it, the engagement between the gears can be automatically opened and closed without malfunction. .

In addition, since the drawer is automatically opened and closed the drawer according to the present invention, it is not necessary to configure the handle of the drawer, and thus the front of the drawer can be configured in various designs, so that the appearance of the drawer can be configured more beautifully. have.

Claims (11)

In the automatic opening and closing device of the drawer, A motor 10 installed at the rear of the drawer, A first pinion gear 11 coaxially connected with the motor 10, A first belt gear 13 meshing with the first pinion gear 11; A second pinion gear 11a engaged with the first belt gear 12 and installed in front of the drawer; A drive gear 12 coaxially connected to the second pinion gear 11a; A guide panel 15 installed below the drawer side plate 2a, A gear fixing panel 16 surrounding the first and second pinion gears 11 and 11a and the first belt gear 13 and fixed to the drawer case side plate 3; And a second belt gear (14) provided on the guide panel (15) and engaged with the drive gear (12). The drawer automatic opening and closing device according to claim 1, wherein the second belt gear (14) is installed in a groove (14a) provided in the guide panel (15). The roller guide 22 according to claim 1 or 2, wherein the plurality of rollers 20 are fixed to the roller mounting plate 21 attached to the guide panel 15, and the roller guides 22 on which the rollers 20 are mounted. Automatic opening and closing device of the drawer, characterized in that further comprises a). 4. The automatic opening and closing device for a drawer according to claim 3, wherein the roller guide (22) is provided on an upper portion of the gear fixing panel (16). The method of claim 1 or 2, wherein the first roller 23 is fixed to the gear fixing panel 16, the second roller 24 is fixed to the guide panel 15, and the guide panel 15 The first roller guide (25) provided in the) and the second roller guide 26 provided in the gear fixing panel (16) further comprises an automatic opening and closing device of the drawer. 3. The automatic opening and closing device of claim 1 or 2, further comprising a power cable box (40) for receiving a power cable connected to the motor (10). 7. The automatic opening and closing device for a drawer according to claim 6, wherein the power cable box (40) is installed by slotting the drawer case side plate (3). The automatic opening and closing device of claim 1 or 2, further comprising a control box (30) provided with a plurality of switches for forward and reverse rotation driving of the plurality of motors to open and close the plurality of drawers. . In the automatic opening and closing device of the drawer, A drive motor installed at the rear of the drawer, A drive gear connected coaxially with the drive motor; A motor fixing part to fix the driving motor to a drawer; A drive rail is formed on the surface and meshes with the drive gear; A rail fixing part provided at a lower portion of the driving rail to support the driving rail and fixed to the drawer case side plate by a fixing means; Automatic opening and closing device of the drawer, characterized in that provided. The method of claim 9, Further provided with a drawer support frame for supporting the drawer bottom plate, The rail fixing unit further includes a rail connecting frame formed by bending the opposite side of the side fixed to the drawer case side plate, the rail connecting frame is configured to be inserted into the drawer support frame, automatic opening and closing device of the drawer. The automatic opening and closing device of the drawer of claim 10, wherein the rail connecting frame is bent in a question mark shape.

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