KR20150034625A

KR20150034625A - Bearing unit

Info

Publication number: KR20150034625A
Application number: KR20140125554A
Authority: KR
Inventors: 가오루 이구치; 마사루 스가; 다카시 고타키
Original assignee: 가부시키가이샤 이구치키코 세이사쿠쇼; (주)아이에스비코리아
Priority date: 2013-09-26
Filing date: 2014-09-22
Publication date: 2015-04-03
Also published as: JP2015067373A

Abstract

(assignment)
The present invention provides a support unit capable of stably supporting a conveyed object on a support when the support is moving and capable of relatively moving the conveyed object relative to the support with a small force when the support is stopped.
(Solution)
A frame-shaped support 3 for placing the object to be transported thereon and a relative abatement means 4 for reducing the force required to relatively move the object to be transported placed on the supporter 3 relative to the support 3 have. The opponent power reduction means 4 includes a plurality of ball transfers 8 having a globe 14 at least partially protruding upward from the mount portion 5 from the through hole 7 in the raised state, And up-and-down moving means for moving the upper and lower bodies 8 upward and downward.

Description

BACKGROUND OF THE INVENTION [

The present invention relates to a supporting unit.

Conventionally, as a support unit using a ball transfer, it has been proposed that a ball (ball) of a ball transfer is smoothly rotated even under a high temperature condition (see, for example, Patent Document 1) .

In the support unit of Patent Document 1, the object to be transported placed on the support can be moved relative to the support body with a small force even under a high temperature condition.

Japanese Unexamined Patent Application Publication No. 2011-57393

However, in the technique described in Patent Document 1, when the support is moving, the stability of the conveyed object may be deteriorated.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for supporting a conveyed object, which can stably support a conveyed object while the support body is moving, And to provide a supporting unit having the same.

In order to solve the above-mentioned problems, the support unit of the present invention is provided with a support for placing a conveyed object, and a relative power reduction means for reducing a force required to relatively move the conveyed object placed on the support relative to the support Wherein the support has a mounting portion for mounting the transported object, an inner space formed below the mounting portion, and a through hole formed in the mounting portion and penetrating to the inner space, And a rolling member which is installed to move up and down in the internal space and in which the at least a part of the rolling member protrudes upward from the through hole with respect to the mounting portion; A moving means And it is characterized in that it comprises.

According to the support unit of the present invention, when the support body is moving, the transmission means is moved downward from the placement unit. As a result, the object to be transported is entirely in contact with the placement portion, so that even when the support body is moving, the object to be transported can be stably supported. Further, when the support is stopped and the transported object is lowered from the support or replaced with another transporting means, the transporting means is moved above the placement portion. As a result, the transported material is supported by the transmission means, so that the transported material can be relatively moved relative to the support body with a small force.

The transfer means is a ball transfer, and the moving means projects at least a top portion of the ball of the ball transfer from the through hole upward above the mounting portion.

In this case, since the ball transfer can be used as the transmission means, the configuration can be simplified. Further, since the up-and-down movement distance of the electric transmission means can be reduced, the moving means can be simplified.

When the transmission means is a ball transfer, the transported object can be moved in an arbitrary direction.

The plurality of transmission means is provided on the upper surface of a plate member provided so as to move up and down in the internal space, and the moving means moves the plate member in parallel upward and downward.

In this case, since the plurality of power transmission means can be moved up and down simultaneously by moving the plate member up and down by one vertical movement of the movement means, the configuration of the movement means can be simplified and the operation of the movement means can be simplified .

And a push-up roller for pushing up the plate member in contact with the inclined surface by sliding in parallel with the placement portion, the push-up roller being provided in the inner space, And a manipulation part provided on the outer side of the support and slidably moving the slide member.

In this case, since the slide member in the support body can be slid by operating the operation portion on the outside of the support body, the operation of the slide member is facilitated. Further, since the frictional force is reduced by the push-up roller, the plate member can be pushed up with a small force.

And the slide member is provided with a support roller for supporting a load applied by the plate member by acting on the push-up roller.

In this case, it is possible to prevent the slide member from being deformed or damaged by the load acting on the push-up roller. Further, since the slide member can be slid and moved by pushing up the plate member by the push-up roller, the slide member can be easily slid even under a load applied to the slide member.

And a guide member for guiding upward and downward movement of the plate member is provided in the inner space.

In this case, since the transfer means on the upper surface of the plate member and the plate member can be moved up and down with high accuracy, the transported object can be stably moved relative to the support.

Further, the guide member is characterized in that an upper end thereof is in contact with the placement portion, and a lower end thereof is in contact with a bottom plate provided below the inner space.

In this case, since the weight of the transported article placed on the placement portion can be supported by the guide member and the bottom plate, the transported material on the support can be more stably supported.

And when the plate member is at the lowest position, a top portion of the ball in the ball transfer is located in the through hole and above the lower surface of the placement portion and below the upper surface of the placement portion.

According to this configuration, when the plate member is at the lowermost position, the top portion of the ball in the ball transfer is located above the lower surface of the placement portion and below the upper surface of the placement portion in the through hole, The moving range of the top of the ball is limited to the forming range of the through hole. Further, when the plate member is moved upward, the ball of the ball transfer is guided into the through hole, and the top portion can be projected upward from the placement portion. Therefore, since the position of the ball transfer can be limited without fixing the ball transfer on the upper surface of the plate member, the support unit can be formed at low cost with ease.

According to the support unit of the present invention, when the support body is moving, the object to be held on the support body can be stably supported, and when the support body is stopped, the effect can be obtained that the object to be transported can be relatively moved relative to the support body with a small force I will exert.

1 is a perspective view showing a support unit according to the present invention.
2 is a plan view of the supporting unit.
3 is a partially enlarged cross-sectional view showing a state in which the internal structure of the support unit and the ball transfer are in the lower limit position of the up-down movement range.
4 is an enlarged sectional view showing the ball transfer.
5 is a partially enlarged sectional view showing a guide member.
6 is a partially enlarged cross-sectional view showing a state in which the ball transfer is in the intermediate position of the up-down movement range.
7 is a partially enlarged cross-sectional view showing a state in which the ball transfer is at the upper limit position of the up-and-down movement range.
8 is a side view showing the movable bogie and the support unit.

Hereinafter, a support unit (support unit) according to an embodiment of the present invention will be described with reference to the drawings.

1, the supporting unit 1 includes a frame-shaped supporting body 3 on which a transported object 2 (see Fig. 3) is placed, (4) for reducing the force required to relatively move the transported object (2) placed on the support body (3) relative to the support body (3).

The respective components will be described below. As shown in Fig. 2, the frame-shaped supporting member 3 is formed in a square flat shape, and a placement portion 5 (see Fig. 3) for placing the conveyed object 2 ). 3, the support 3 is provided with an internal space 6 below the placement unit 5 and a through hole 7 (see FIG. 3) passing through the internal space 6 is formed in the placement unit 5, (See Fig. 1).

The inner space (6) is formed over the whole of the support (3). The through hole (7) is formed on the entire surface of the placement unit (5).

The opponent power reduction means 4 includes a ball transfer 8 as a plurality of power transmission means provided to move up and down in the internal space 6 and a ball transfer 8 And a moving means (moving means) 9 for moving the moving means.

4, the ball transfer 8 includes an elliptic pedestal 10, a main body portion 11 having a square cross-section and projecting upward from the pedestal 10, A plurality of small spheres 13 which are open to the upper side of the main body 11 and which are laid in such a manner that they also rotate in one layer in a recess 12 having a semicircular cross section, (Corresponding to a " ball " in the claims) which is received in the base 12 and supported for rotation by the plurality of balls 13. The top of the cup 14 protrudes upward from the main body 11. The pedestal 10 is provided with one or both of attachment holes 15 located at both ends or attachment screws 16 extending downward from the center of the pedestal 10.

When the ball transfer 8 is lifted up, the top of the bolt 14 passes from the through hole 7 to the placing surface 5a (corresponding to the "upper surface" of the claim) of the placing portion 5 And protrudes upward (see Fig. 7).

As the ball transfer 8, for example, those described in JP-A-2011-57393 or JP-A-2012-30914 can be used.

When the ball transfer 8 is used as the rolling body, the conveyed object 2 can be stably supported by using three or more ball transfers 8. In addition, by using the ball transfer 8, the transported object 2 can be moved in an arbitrary direction within a range of 360 degrees on the placement surface 5a of the placement unit 5. [

3, all the ball transfers 8 in the support 3 are installed on the upper surface of a plate member 17 provided so as to move up and down in the internal space 6 of the support body 3 . The moving means 9 moves all the ball transfers 8 up and down by moving the plate member 17 in parallel in the vertical direction as described below.

Specifically, an inclined surface (inclined surface) 18 is formed at a lower portion of the plate member 17 in a vertical direction. The moving means 9 includes a slide member 19 provided in the inner space 6 of the support 3 and slidable in parallel with the placement portion 5, And an operation lever (corresponding to an " operation portion " in the claims) for slidably operating the slide member 19.

The operation lever 20 is connected to the slide member 19 via a toggle mechanism 21 provided on the outer surface of the support member 3 and connected to the slide member 19.

5, as the slide member 19 is slid in one direction (leftward direction in Fig. 5), the slope 18 formed on the lower surface of the plate member 17 A push-up roller 22 for lifting the plate member 17 in contact with the push-up roller 22 and a push-up roller 22 for supporting the load acting on the slide member 19 via the push- And a support roller 23 provided adjacent to the support roller 23.

A plurality of guide members 25 extending upward in the inner space 6 are provided in the bottom plate 24 provided at the lower portion of the inner space 6 of the support body 3. These guide members 25 guide the up and down movement of the plate member 17 and the ball transfer 8. The plate member 17 and the ball transfer 8 can be moved up and down with high accuracy.

The upper end of the guide member 25 is in contact with the placing portion 5 and the lower end of the guide member 25 is in contact with the bottom plate 24. The weight of the conveyed object 2 placed on the placing portion 5 is supported by the guide member 25 and the bottom plate 24 so that the conveyed object 2 on the supporting body 3 is more stably supported do.

Next, the operation of the support unit 1 will be described. Here, as shown in Fig. 8, the case where the support unit 1 is applied to a cart 26 that can carry and move the conveyed object 2 will be described. The support unit 1 is preferably fixed on the upper surface of the carriage 26.

When the conveyed object 2 is loaded on the carriage 26, the operation lever 20 of the support unit 1 is raised to the upper limit position, as shown in Fig. 3, with the carriage 26 stopped. At this time, the operating lever 20 faces obliquely upward. At this time, the push-up roller 22 of the slide member 19 in the moving means 9 of the opponent power reduction means 4 is separated from the inclined surface 18 of the plate member 17.

The plate member 17 and the ball transfer 8 are located below the placement surface 5a of the placement unit 5. [ Therefore, the transported object 2 is entirely in contact with the placement surface 5a of the placement unit 5, so that the transported object 2 can be stably supported.

When the carriage 26 is moved, the support unit 1 is held in the state shown in Fig. In this state, the transported object 2 is entirely in contact with the placement surface 5a of the placement unit 5 of the support unit 1, so that the transported object 2 is supported by the support unit 1 and the carriage 26) is maximized. Therefore, when the carriage 26 moves, the conveyed object 2 can be stably supported.

The operation lever 20 of the support unit 1 is pushed down to the lower limit position when the movement of the carriage 26 is stopped and the transported object 2 is lowered from the carriage 26 or replaced with another object. 6, when the operation lever 20 is turned to the horizontal position, the push-up roller 22 of the moving means 9 slightly pushes up the inclined surface 18 However, the bolt 14 of the ball transfer 8 is located below the placement surface 5a of the placement unit 5 or on the same plane as the placement surface 5a.

As shown in Fig. 7, when the operating lever 20 is further slid down to reach the lower limit position and inclined until it is obliquely downwardly directed, the top of the bolt 14 of the ball transfer 8 is moved (5a). Then, the transported object 2 is lifted up by the plurality of claws 14 and separated from the placement surface 5a. The transported object 2 is supported only by the globe 14 which can rotate in a plurality of arbitrary directions.

Thus, the transported object 2 can be moved relative to the support 3 with a smaller force as compared with the case where the transported object 2 is placed directly on the placement unit 5. [ At this time, it becomes easy to lower the conveyed object 2 from the carriage 26 or to transfer the conveyed object 2 from the carriage 26 to another object.

According to the support unit 1 of the present embodiment, when the support 3 is moving, the ball transfer 8 is moved downward from the placement unit 5. [ Thus, the transported object 2 comes into contact with the placement portion 5 entirely, so that the transported product 2 can be stably supported even when the support 3 moves. The ball transfer 8 is moved upward from the placement unit 5 when the support 3 is stopped and the transported object 2 is lowered from the support 3 or replaced. The conveyed object 2 can be relatively moved with respect to the supporting object 3 by a small force since the conveyed object 2 is supported by the ball transfer 8. [

Further, since the ball transfer 8 can be used as the transmission means, the configuration can be simplified. In addition, since the up and down movement distance of the ball transfer 8 can be reduced, the moving means 9 can be simplified.

When the ball transfer 8 is used as the transmission means, the transported object 2 can be moved in an arbitrary direction.

Since the plurality of ball transfers 8 can be simultaneously moved up and down only by moving the plate member 17 upward and downward by one up and down movement of the moving means 9, And the operation of the moving means 9 is facilitated.

The operation of the slide member 19 can be facilitated since the slide member 19 in the support member 3 can be slid by operating the operation lever 20 outside the support member 3. [ Further, since the frictional force is reduced by the push-up roller 22, the plate member 17 can be pushed up with a small force.

Since the slide member 19 has the support roller 23 for supporting the load applied by the plate member 17 by acting on the push-up roller 22, the slide member 19 is supported by the push- It is possible to suppress deformation or breakage due to the load acting on the movable member. The slide member 19 can be slid and moved by pushing up the plate member 17 by the push-up roller 22. Therefore, even when the slide member 19 is subjected to a load, .

The guide member 25 for guiding the up and down movement of the plate member 17 is provided in the inner space 6 so that the plate member 17 and the ball transfer 8 on the upper surface of the plate member 17 can be moved up and down with high accuracy So that the transported object 2 can be stably moved relative to the support 3.

Since the guide member 25 is in contact with the placing portion 5 at its upper end and is in contact with the bottom plate 24 provided at the lower portion of the inner space 6 at the lower end, The weight of the conveyed object 2 can be supported by the guide member 25 and the bottom plate 24. Therefore, the conveyed matter 2 on the support 3 can be supported more stably.

Although the embodiments of the support unit 1 according to the present invention have been described above, the present invention is not limited to the above-described embodiments, but can be appropriately changed within the scope of the present invention.

For example, the support unit 1 can be used with an inclination.

In the embodiment, the ball transfer 8 is described as an example of the transmission means. However, a roller bearing or the like other than the ball transfer 8 may be used as the transmission means. When the roller bearing is used as the transmission means, the conveyed object 2 can be stably supported by using two or more roller bearings. When two or more roller bearings are used, the rollers of all the roller bearings can be rotated only in a specific direction so that the conveyed object 2 can be relatively moved in a specific direction.

In the embodiment, one or both of the mounting hole 15 or the mounting screw 16 is provided on the pedestal 10 of the ball transfer 8, and the ball transfer 8 is attached to the plate member 17 Screw 16, or the like, but the method of fixing the ball transfer 8 is not limited to the embodiment.

Further, the ball transfer 8 may not be fixed to the plate member 17. Specifically, when the plate member 17 is at the lowermost position, the top of the bolt 14 of the ball transfer 8 is located above the lower surface of the placing portion 5 in the through hole 7, Even if the ball transfer 8 is not fixed on the upper surface of the plate member 17, the movement range of the top portion of the bolt 14 is not limited to the formation of the through hole 7 (upper surface) . When the plate member 17 is moved upward, the bolt 14 of the ball transfer 8 is guided into the through hole 7 so that the top portion is protruded upward from the placement surface 5a of the placement portion 5 . Therefore, according to this configuration, since the position of the ball transfer 8 can be limited without fixing the ball transfer 8 on the upper surface of the plate member 17, the support unit 1 can be formed at low cost, can do.

It is also possible to appropriately replace the constituent elements of the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention.

1: Supporting unit
2:
3: Support
4: The opponent's power reduction means
5:
5a:
6: Interior space
7: Through hole
8: Ball transfer (power transmission means)
9: Moving means
14: Daegu (Full body)
18:
19: Slide member
20: Operation lever (control panel)
21: toggle mechanism
22: Push-up roller
23: Support roller
25: Guide member
26: Bogies

Claims

A supporting body on which a transported object is placed,
A relative abatement force reducing means for reducing a force required to relatively move the transported object placed on the support relative to the support
Respectively,
Wherein the support comprises:
A placement unit for placing the transported object,
An inner space formed below the placement portion,
And a through hole formed in the placement portion and penetrating to the inner space
Respectively,
Wherein said relative power reduction means comprises a plurality of power transmission means provided with a rolling body which is provided so as to move up and down in said internal space and at least a part of which protrudes upward from said through hole on said mounting portion in a raised state, And a moving means (moving means) installed in the inner space for moving the driving means upward and downward.

The method according to claim 1,
Wherein the transmission means is a ball transfer and the moving means projects at least a top portion of the ball of the ball transfer from the through hole upward above the mounting portion.

3. The method of claim 2,
Wherein the plurality of transmission means is provided on an upper surface of a plate member provided so as to move up and down in the internal space, and the moving means moves the plate member in parallel upward and downward.

The method of claim 3,
An inclined surface (inclined surface) inclined in the up-and-down direction is formed in the lower portion of the plate member,
Wherein the moving means includes a slide member having a push-up roller which is provided in the inner space and slides in parallel with the placement portion to push up the plate member by contacting the slope surface, And an operation portion (operation portion) provided outside the support member and slidably moving the slide member.

5. The method of claim 4,
Wherein the slide member has a support roller for supporting a load applied by the plate member by acting on the push-up roller.

The method according to claim 4 or 5,
And a guide member for guiding upward and downward movement of the plate member is provided in the internal space.

The method according to claim 6,
Wherein the guide member is in contact with a bottom plate provided at a lower portion of the inner space, the upper end of the guide member being in contact with the placement portion.

The method according to any one of claims 3, 4, 5, and 7,
Wherein a top portion of the ball in the ball transfer when the plate member is at the lowermost position is located above the lower surface of the placement portion in the through hole and below the upper surface of the placement portion.

The method according to claim 6,
Wherein a top portion of the ball in the ball transfer when the plate member is at the lowermost position is located above the lower surface of the placement portion in the through hole and below the upper surface of the placement portion.