KR20140059018A

KR20140059018A - Shelf moving device

Info

Publication number: KR20140059018A
Application number: KR1020120125592A
Authority: KR
Inventors: 배정화; 권경준
Original assignee: 위니아만도 주식회사
Priority date: 2012-11-07
Filing date: 2012-11-07
Publication date: 2014-05-15

Abstract

The invention relates to a lathe moving device. The shelf moving device includes: a shelf member provided so as to be able to move up and down in a storage chamber; a support member provided apart from the shelf member and provided in the storage chamber; and a support member provided on the shelf member, And a lifting member for lifting the lifting member.

Description

{SHELF MOVING DEVICE}

The present invention relates to a lathe moving apparatus, and more particularly, it relates to a lathe moving apparatus which can lift and move a rack member in a rack using power provided by an elevating member provided in the rack member, To a shelf moving device for increasing space utilization.

In general, a shelf is provided in a storage room such as a refrigerator, a kimchi refrigerator or the like in a state of being spaced up and down at regular intervals. This shelf is fixedly installed in the storage room in such a manner that the shelves support the storage such as food, side dishes, and food.

The conventional shelf is configured to be housed in a sliding manner along the guide grooves formed on the inner side of the storage chamber. The guide grooves are provided on the upper and lower sides to accommodate the size of the storage by inserting the shelves into the guide grooves of the desired height .

However, in the conventional guide groove guiding type shelf, which is manually operated, the shelves are taken out with the storage materials removed from the shelves, the shelves are assembled at a desired height again, There is a problem.

In order to solve this problem, a variety of automated shelf moving devices have been proposed. However, existing shelf moving devices have a complicated shelf moving structure and insufficient moving distance of the shelf, which is not suitable for the utilization of storage space.

The background art of the present invention is disclosed in Patent Publication No. 10-2012-0086155.

Therefore, there is a need to improve this.

The present invention has been made in view of the above-described needs, and it is an object of the present invention to provide a shelf lifting structure for lifting and lowering a shelf member in a storage chamber using power provided by an elevating member provided in the shelf member, In order to increase the height of the shelf.

It is also an object of the present invention to provide a lathe moving apparatus capable of effectively achieving a rotation deceleration rate by using a planetary gear unit as a driving force transmitted from an elevating member.

According to an aspect of the present invention, there is provided a lathe moving apparatus including: a shelf member capable of being lifted and lowered in a storage chamber; A support member spaced apart from the shelf member and installed in the storage chamber; And an elevating member provided on the shelf member, for lifting the shelf member by transmitting a driving force to the supporting member.

In addition, the shelf member may include: a shelf capable of accommodating the storage; And a case which is formed to have a space at a lower portion of the shelf and includes the elevating member in the space.

In addition, the support member may include at least two support frames provided in the storage chamber; An installation bracket provided at one side of the support frame; And a female screw member provided on the mounting bracket and having a female screw hole.

Further, the elevating member may include: a power generating unit provided on the shelf member to provide power; A planetary gear unit for reducing the power of the power generating unit at a set reduction ratio; And a screw member screwed to the female screw member and rotated by the planetary gear unit to adjust the height of the rack member.

The power generating unit may include: a driving motor installed on the shelf member; And a first belt that transmits power to the planetary gear unit through a first pulley coupled to the driving motor shaft.

Further, the planetary gear unit is arranged such that the first belt has a triangular shape with respect to the power generating unit.

The planetary gear unit may further include: a second pulley wound and rotated on the first belt; A sun gear coupled to the shaft of the second pulley and rotating; A planetary gear that revolves in contact with an outer peripheral surface of the sun gear; An internal gear formed on an inner circumferential surface of the housing which is in contact with an outer circumferential surface of the planetary gear and is provided on the rack member; A carrier member into which the central axes of the planetary gears are respectively inserted and rotated; And a third pulley fixed to the central axis of the carrier member and rotating with the carrier member to transmit power to the screw member through the second belt.

The rotation speed reduction ratio of the planetary gear unit is determined by the ratio of the number of gear teeth of the internal gear to the number of gear teeth of the sun gear.

In addition, the screw member is rotatably installed on a connecting member provided on the shelf member so that the screw member is moved up and down together with the shelf member and the elevation member.

In addition, a connection hole is formed in the housing to connect the first belt and the second belt to each other. The housing includes: an upper housing in which an axis of the second pulley is rotatably engaged; And a lower housing rotatably coupled to the shaft of the third pulley.

Since the shelf moving device according to the present invention elevates and retracts the shelf member in the storage room using the power provided by the elevating member provided in the shelf member, the shelf moving structure can be compactly constructed and the utilization of the storage space can be enhanced .

Further, in the present invention, by using the planetary gear unit as the driving force transmitted from the elevating member, the rotation deceleration ratio can be effectively achieved.

1 is an exploded perspective view of a front side of a lathe moving apparatus according to an embodiment of the present invention,
FIG. 2 is a rear exploded perspective view of a lathe moving apparatus according to an embodiment of the present invention,
3 is a bottom perspective view of a lathe moving apparatus according to an embodiment of the present invention,
4 is an exploded perspective view of the planetary gear unit according to one embodiment of the present invention,
5 is an assembled state sectional view of the planetary gear unit according to one embodiment of the present invention,
FIG. 6 is a vertical movement state of the lathe moving apparatus according to an embodiment of the present invention,
FIG. 7 is a detailed moving state diagram of a lathe moving apparatus according to an embodiment of the present invention,
8 is an enlarged view of the "A" part of FIG.

Hereinafter, a shelf moving apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is an exploded front perspective view of a shelf moving apparatus according to an embodiment of the present invention, FIG. 2 is an exploded rear perspective view of a shelf moving apparatus according to an embodiment of the present invention, FIG. FIG. 4 is an exploded perspective view of the planetary gear unit according to an embodiment of the present invention. FIG.

FIG. 5 is a sectional view of a planetary gear unit according to an embodiment of the present invention, FIG. 6 is a vertical movement of the apparatus for moving a rack according to an embodiment of the present invention, and FIG. Fig. 8 is a partial enlarged view of "A: Fig. 6 ".

1 to 8, a lathe moving apparatus according to an embodiment of the present invention includes a rack member 10, a support member 20, and an elevating member 30.

The shelf member 10 is provided so as to be movable in a storage room 2 such as a refrigerator or a kimchi refrigerator.

On the upper side of the shelf member 10, a storage such as food, side dish, food, etc. is placed. At least one or more shelf members 10 are provided on the upper and lower sides of the storage chamber 2 to partition the storage space of the storage chamber.

The shelf member 10 includes a shelf 12 capable of accommodating a storage and a case 14 formed to have a space at a lower portion of the shelf 12 and having an elevation member 30 in the space.

The upper surface of the shelf 12 is formed flat so that the storage material is stably placed.

Four side portions of the case 14 protrude upward to have a predetermined space and an upper portion of the side surface is engaged with the bottom surface of the shelf 12 to form a space inside the shelf member 10.

The shape of the shelf member 10 can be variously changed within a range that can be practiced by those skilled in the art.

The support member 20 is disposed apart from the shelf member 10, and is installed on the wall surface of the storage chamber or the like. In the embodiment of the present invention, four support members 20 are provided on the square portion of the shelf member 10, but two or four support members 20 may be provided if necessary.

The shape of the support member 20 can be variously changed within a range that can be practiced by those skilled in the art.

The support member 20 includes at least two support frames 22 provided in the storage chamber, a mounting bracket 24 provided at one side of the support frame 22 and a mounting bracket 24 provided with a female screw hole And includes a female screw member 26.

The support frame 22 is vertically formed to have a predetermined length and is provided on the wall surface of the storage chamber 2 as shown in FIG.

The support frame 22 can be changed into various shapes as necessary, and various methods can be mounted in the storage chamber 2. [

Although the mounting bracket 24 is shown only on the lower side of the support frame 22, And may be provided on the upper side as required.

The female screw member 26 is integrally formed on the central portion of the mounting bracket 24 with a thickness (height) larger than the thickness of the mounting bracket 24.

The shelf member 10 may be provided with a cover member 66 to cover the support frame 22 and the screw member 64 of the support member 20. [

The cover member 66 is formed to bend downward from the four corner edges of the case 14 of the shelf member 10.

The cover member 66 can be configured to be guided in the guide frame 22, i.e., in the LM guide manner.

The elevating member 30 is provided on the shelf member 10 and transmits a driving force to the supporting member 20 to elevate the shelf member 10. [

The elevating member 30 includes a power generating portion 32, a planetary gear unit 40, and a screw member 64.

The power generating portion 32 is provided on the rack member 10 to provide power.

The power generating portion 32 is configured to transmit power to the planetary gear unit 40 through the drive motor 34 provided on the rack member 10 and the first pulley 36 coupled to the shaft of the drive motor 34 And a first belt 38.

The drive motor 34 can use a servo motor to accurately perform normal and reverse rotations.

It is preferable that the first pulley 36 and the first plies 38 use a timing pulley and a timing belt to transmit accurate power.

4 and 5, the planetary gear unit 40 includes a second pulley 42, a sun gear 44, a planet gear 46, an internal gear 48, and a third pulley 52 .

The second pulley 42 is wound on the first belt 38 and rotated. The second pulley 42 may be a timing pulley. The shaft of the second pulley 42 is rotatably shaft-coupled to the housing 50 described later.

The sun gear 44 is coupled to the shaft of the second pulley 42 and rotates.

The planetary gear 46 rotates about the sun gear 44 in contact with the outer peripheral surface of the sun gear 44 and revolves at the same time.

Although three planetary gears 46 are shown in one embodiment of the present invention, they may be configured as two or four or more as necessary.

The internal gear 48 is formed on the inner circumferential surface of the housing 50 which is in contact with the outer circumferential surface of the planetary gear 46 and is provided on the rack member 10.

The housing 50 accommodates the second pulley 42, the sun gear 44, the planet gear 46, the internal gear 48 and the third pulley 52 in a wrapping manner, And is fastened to the case 14 of the shelf member 10 by screwing.

The carrier member 52 has a structure in which the central axes of the planetary gears 40 are respectively inserted and rotated. The carrier member 52 has a shape in which a portion into which the center shaft of the planetary gear 40 is inserted is bent and protruded with respect to the center.

The shape of the carrier member 52 can be changed into various shapes within a practicable range of those skilled in the art.

The third pulley 54 is fixed to the central axis of the carrier member 52 and rotates with the carrier member 52 to transmit power to the screw member 64 via the second belt 56. The shaft of the third pulley 54 is rotatably coupled to the housing 50.

The housing 50 is formed with a connecting hole 49 so that the first belt 38 and the second belt 54 are connected to the inside and the outside.

The housing 50 includes an upper housing 51 to which the shaft of the second pulley 42 is rotatably engaged and a lower housing 53 to which the shaft of the third pulley 52 is rotatably engaged.

The rotational speed reduction ratio of the planetary gear unit 40 is determined by the ratio of the gear teeth number of the internal gear 48 to the gear teeth number of the sun gear 44. [ For example, when the number of teeth of the sun gear 44 is 20 and the number of teeth of the internal gear 48 is 80, the rotation reduction ratio of the planetary gear unit 40 is four times.

That is, when the sun gear 44 rotates four times, the three planet gears 46 engaged with the internal gear 48 rotate once and are transmitted to the third pulley 54 through the carrier member 52 . Therefore, when the second pulley 42 rotates four times, the third pulley 54 rotates once, and instead, the rotational force is decelerated in a state of being increased four times.

The screw member 64 is screwed to the female screw member 26 of the support member 20 and is rotated by the planetary gear unit 40 to adjust the height of the rack member 10. [

The screw member 64 is rotated by the fourth pulley 62 wound on the second belt 56 so that the screw member 64 is rotatably installed on the connecting member 58 provided on the shelf member 10, And the elevating member 30 as shown in Fig.

6 and 7, the screw member 64 is engaged with the female screw member 26 of the female screw member 26 provided at the four corners of the lathe member 10 by the power transmitted from the planetary gear unit 40. In other words, Height is adjusted as the ball ascends and descends.

The shelf member 10 and the elevating member 30 integrally provided on the shelf member 10 are connected to the screw member 64 through the connecting member 58 rotatably mounted on the screw member 64, 64 in the vertical direction.

8, the connecting member 58 is rotatably supported by the bearing while being caught in the insertion groove formed to be recessed around the screw member 64, so that the rotation of the screw member 64 is prevented The shelf member 10 can be supported.

The supporting structure in which the connecting member 58 is connected to the shelf and the rotating structure in which the connecting member 58 is rotatably engaged with the screw member 64 can be variously changed within a practicable range of those skilled in the art.

The lathe moving apparatus according to the present invention can move the shelf member 10 up and down in the storage room by using the power provided by the lifting member 30 provided in the shelf member 10, The utilization of the storage space can be increased.

The present invention has the effect of effectively achieving the rotation deceleration ratio by using the planetary gear unit (40) as the driving force transmitted from the elevating member (30).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the following claims.

10: shelf member 12: shelf
14: Case 20: Support member
22: support frame 24: mounting bracket
26: female screw member 30: elevating member
32: power generating unit 34: driving motor
36: first pulley 38: first belt
40: planetary gear unit 42: second pulley
44: sun gear 46: planetary gear
48: internal gear 50: housing
49: connecting hole 52: carrier member
54: third pulley 56: second belt
58: connecting member 62: fourth pulley
64: screw member 66: cover member

Claims

At least one shelf member provided in the storage chamber;
A support member disposed on the shelf member and spaced apart from the shelf member; And
And an elevating member provided on the shelf member and configured to raise and lower the shelf member by transmitting a driving force to the supporting member.

The method according to claim 1,
The shelf member
A shelf capable of accommodating the storage; And
And a case formed with a space below the shelf and having the elevating member in the space.

The method according to claim 1,
Wherein the support member comprises:
At least two support frames provided in the storage chamber;
An installation bracket provided at one side of the support frame; And
And a female screw member provided on the mounting bracket and having a female screw hole.

The method of claim 3,
The elevating member
A power generating unit provided on the shelf member to provide power;
A planetary gear unit for reducing the power of the power generating unit at a set reduction ratio; And
And a screw member screwed to the female screw member and rotated by the planetary gear unit to adjust a height of the lathe member.

5. The method of claim 4,
The power generation unit includes:
A drive motor installed on the shelf member; And
And a first belt for transmitting power to the planetary gear unit through a first pulley coupled to the drive motor shaft.

6. The method of claim 5,
Wherein the planetary gear unit is disposed in pairs so that the first belt has a triangular shape with respect to the power generating unit.

5. The method of claim 4,
Wherein the planetary gear unit includes:
A second pulley wound and rotated on the first belt;
A sun gear coupled to the shaft of the second pulley and rotating;
A planetary gear that revolves in contact with an outer peripheral surface of the sun gear;
An internal gear formed on an inner circumferential surface of the housing which is in contact with an outer circumferential surface of the planetary gear and is provided on the rack member;
A carrier member into which the central axes of the planetary gears are respectively inserted and rotated;
And a third pulley fixed to the central axis of the carrier member and rotating with the carrier member to transmit power to the screw member via the second belt.

8. The method of claim 7,
Wherein the rotation speed reduction ratio of the planetary gear unit is determined by a ratio of the number of gear teeth of the internal gear to the number of gear teeth of the sun gear.

8. The method according to claim 4 or 7,
Wherein the screw member is rotatably installed on a connecting member provided on the shelf member so that the screw member is moved up and down together with the shelf member and the elevation member.

8. The method of claim 7,
The housing is formed with a connection hole such that the first belt and the second belt are connected to each other.
The housing includes:
An upper housing rotatably coupled to the shaft of the second pulley; And
And a lower housing to which a shaft of the third pulley is rotatably coupled.