JP3463633B2 - Article storage device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an article storage device.

[0002]

2. Description of the Related Art Conventionally, the following items are known as this type of article storage device. A loading / unloading conveyor, an elevating / lowering article support member that is provided to be able to move up and down with respect to the loading / unloading conveyor, and a connecting conveyor that is connected to the loading / unloading conveyor with a gap that allows the lifting / lowering article support member to move up and down It is known that the article support member scoops up an article on the entry / exit conveyor when rising, and lowers the article on the entry / exit conveyor when descending.

[0003]

Disadvantages of the Prior Art The conventional article storage device has the following drawbacks. A clearance is required between the loading / unloading conveyor and the connecting conveyor to allow the lifting / lowering of the lifting / lowering article support member.However, the clearance hinders the smooth movement of the article, or in the case of a small article, the clearance is created. There was a defect that it might get stuck.

[0004]

[Means for Solving the Disadvantages] The present invention employs the following means in order to eliminate the above disadvantages. The invention according to claim 1 is a loading / unloading conveyor, and a lifting / lowering article support member provided to be able to move up and down with respect to the loading / unloading conveyor,
It has a connecting conveyor that is connected to the loading / unloading conveyor, with a gap allowing the lifting / lowering of the lifting / lowering article support member, and the lifting / lowering article support member scoops up or down the articles on the loading / unloading conveyor when rising or lowering. In an article storage device configured to unload an article on a loading / unloading conveyor, a portion of a lifting article supporting member that passes through a gap is bent back and forth when viewed from a plane so as to divide the gap into left and right. , A first transfer roller is provided on the loading / unloading conveyor so as to be positioned at a portion of the gap on the loading / unloading conveyor side, and a second feeding roller is provided on the loading / unloading conveyor side of the gap.
A passing roller is provided. The invention of claim 2 is characterized in that the portion of the lifting / lowering article support member that passes through the gap is bent forward and backward when viewed from a plane so as to divide the gap into a lateral center portion and a lateral portion. It is the one described. According to a third aspect of the present invention, there is provided a loading / unloading conveyor, and an elevating / lowering article support member provided so as to be vertically movable with respect to the loading / unloading conveyor.
It has a connecting conveyor that is connected to the loading / unloading conveyor, with a gap allowing the lifting / lowering of the lifting / lowering article support member, and the lifting / lowering article support member scoops up or down the articles on the loading / unloading conveyor when rising or lowering. In an article storage device configured to unload an article on a loading / unloading conveyor, a transfer roller is provided above the portion of the lifting article support member that passes through the gap.

[0005]

The present invention has the following effects due to the above-described structure. According to the inventions of claims 1 and 3, the articles can be prevented from falling into the gap, and the articles can be smoothly moved between the loading / unloading conveyor and the connecting conveyor. According to the invention of claim 2, the article can be moved more reliably and smoothly between the loading / unloading conveyor and the connecting conveyor.

[0006]

DETAILED DESCRIPTION OF THE INVENTION Two embodiments of the invention will be described below. In the description, the same members are designated by the same reference numerals.

[First Embodiment of the Invention] (See FIGS. 1 to 6) In this description, the front means the left side in FIG. 1, the rear means the same right side, and the left means the lower side in FIG. , Right means the same upper side.

The base frame 2 of the article storage device 1 is a lower frame 3 and an upper frame 4 located above the lower frame 3 (see FIG. 6).
And a column 5 of a required book that connects the lower frame 3 and the upper frame 4.

Support pillars 8 (see FIGS. 2 and 5) are erected at the center of the crossing material 7 of the required book in which the longitudinal direction of the lower frame 3 is oriented in the left-right direction. Brackets 10 having a belt insertion space 9 are provided, and horizontal members 11 having a narrow left and right width with the longitudinal direction oriented in the front-rear direction are attached to the brackets 10.

On the horizontal member 11, at predetermined intervals in the front-back direction,
Bearing members 13 are provided so as to extend to the left and right from the horizontal member 11, and a carrier roller 14 is rotatably provided on these bearing members 13 so that the axis of the bearing member 13 is oriented in the left-right direction. A group of the carrier rollers 14 configures a transfer section of the loading / unloading conveyor 15, and the support pillars 8, the brackets 10 and the horizontal members 11 configure a base frame 16 of the loading / unloading conveyor 15.

Drive device 1 for the carrier roller 14
8 is described in detail below. Support plate 20 provided on the lower frame 3
A motor 21 with a decelerator that can rotate forward and backward is installed in such a manner that the end of the output shaft 22 is located below the horizontal member 11 and the axis is oriented in the left-right direction. A drive wheel 23 is fixed to the output shaft 22 of the. The bracket 2 is provided so as to be positioned above and behind the drive wheel 23, and the idle wheel 24 is positioned below the horizontal member 11 so that the axis of the idle wheel 24 is oriented in the left-right direction.
5, which is rotatably provided and has a hollow horizontal member 1
A play wheel 24 is rotatably provided at the front and rear of the unit 1 with its axis oriented in the left-right direction. Further, a pressing roller 26 (see FIG. 5) is rotatably provided via a bracket in the upper portion of the horizontal member 11 between the carrier rollers 14 so that the axis of the pressing roller 26 is oriented in the left-right direction. The endless drive belt 27 having a width narrower than the horizontal width of the horizontal member 11 is passed through between the lower side of the carrier roller 14 and the upper side of the pressing roller 26 so as to come into contact with the lower portion of the carrier roller 14 and driven. It is hung around the wheel 23 and the play wheel 24. With such a configuration, in FIG. 2, by driving the drive belt 27 in the clockwise direction, the carrier roller 14 can be rotated in the counterclockwise direction, while by driving the drive belt 27 in the counterclockwise direction, The carrier roller 14 can be rotated clockwise. The drive belt 27 does not abut on the frontmost carrier roller 14 and the rearmost carrier roller 14, so that the frontmost carrier roller 14 and the subsequent carrier roller 14 are endless interlocking belts 2.
8 (see FIG. 1), and the last carrier roller 14 and the carrier roller 14 in front of it are connected by an endless interlocking belt 28 (see FIG. 1). The drive wheel 23 and the idle wheel 24 are
The horizontal member 11 does not extend to the left and right when viewed from the plane. Further, cutouts and openings for passing the drive belt 27 are formed in the front and rear portions of the horizontal member 11.

The loading / unloading conveyor 15 is covered with a plurality of, in this embodiment, eight lifting article support members 32, which can be lifted and lowered. The lifting article support member 32 is a pair of left and right members 33 on the left and right sides of the loading / unloading conveyor 15.
And a pair of front and rear members 34 and 35 connecting the left and right members 33.

The lifting / lowering article support member 32 is provided at 4 of the base frame 2.
The corner columns 5 are used as guide rails to move up and down. Further, the four corners on the front, rear, left and right of the vertically adjacent article support members 32 are connected by the connecting members 39. The connecting member 39 includes a connecting piece 40 that is vertically swingably connected to the lifting article supporting member 32, a free end of the connecting piece 40, and a chain 41 pivotally attached to the upper lifting article supporting member 32. have. Connection piece 40 and chain 4
When the upper and lower lifted article support members 32 are overlapped with each other as shown in FIG. 2, the upper and lower lifted article support members 32 are raised by a predetermined height with respect to the lower lifted article support member 32. Become straight. The uppermost lifting article support member 32 is moved up and down by a known lifting drive device (not shown). By raising and lowering the uppermost elevating article support member 32 with such a configuration, the other elevating article support members 32 can also be elevated and lowered. Even if the lowermost lifting / lowering article support member 32 is located at the lowest position, the motor 21 collides with it.
It is designed not to interfere.

At the rear of the loading / unloading conveyor 15, a connecting conveyor 47 consisting of a forward / reverse rotatable drive roller conveyor which is a loading / unloading conveyor is provided with a gap 46 allowing passage of the rear material 35. The transfer surface and the transfer surface are provided so as to be the same or substantially the same.

The rear member 35 is bent back and forth when viewed from above so as to divide the gap 46 into a left-right center gap 46a and a left-right gap 46b. In other words, the rear member 35 has the left and right parts 35a, the facing part 35b continuously provided in a protruding manner to the inner ends of these, and the central part 35c connecting the front ends of these facing parts 35b. ing.

A first transfer roller 49 having its axis centered in the left-right direction is provided on the loading / unloading conveyor 15 so as to be positioned in the left / right gap 46b, and the first transfer roller 49 and the carrier roller 14 at the last position are provided. The interlocking belt 28 is stretched around. The second with the axis centered leftward and rightward on the connecting conveyor 47 so as to be positioned in the central gap 46a.
The transfer roller 50 is provided, and the second transfer roller 5 is provided.
The interlocking belt 28 is wound around 0 and the carrier roller 48 of the connection conveyor 47 at the frontmost position. As shown in FIG. 3, when the rear material 35 is a straight line, there is a gap of the front-rear width L between the connecting conveyor 47 and the loading / unloading conveyor 15, but in the present invention, the first transfer roller 49 and the second transfer roller 49 are provided.
Due to the presence of the transfer roller 50, the first transfer roller 49 and the second transfer roller 50 partially overlap with each other when viewed from the side, and the gap width between the loading / unloading conveyor 15 and the connection conveyor 47 is substantially equal to that of the carrier. The gap width between the rollers 14 (or the gap width between the carrier rollers 48) is about (narrower than the front-rear width L), and the articles W can be transferred more smoothly than in the conventional case.

A stopper 52 is provided at the front end of the base frame 16 of the loading / unloading conveyor 15 so as not to collide with or interfere with the front material 34 of the lifting / lowering article support member 32.

[Operation of First Embodiment of the Invention] Next,
The operation of the first embodiment will be described. It is assumed that the article storage device 1 is empty, that is, all the lifting article support members 32 are lowered below the transport surface of the loading / unloading conveyor 15.
First, as the connecting conveyor 47 and the loading / unloading conveyor 15 are driven, the articles W are sequentially transported from the connecting conveyor 47 to the loading / unloading conveyor 15. Since the leading article W hits the stopper 52 and stops, subsequent articles W also sequentially hit the preceding article W and stop. And the loading / unloading conveyor 1
With a predetermined number of articles W placed on 5, the loading / unloading conveyor 15 and the connecting conveyor 47 are temporarily stopped. afterwards,
The uppermost elevating article support member 32 is raised, and the uppermost elevating article support member 32 (specifically, the left and right members 33) scoops up the article W on the loading / unloading conveyor 15. When the uppermost lifting article support member 32 reaches a height position where it does not collide with the next article W carried into the loading / unloading conveyor 15, the uppermost lifting article support member 32 is stopped. After that, the above operation is repeated to scoop up the article W by all the lifting article support members 32 (see FIG. 6).

Next, a method for carrying out the articles W stored in the article storage device 1 will be described. The lowermost elevating / lowering article support member 32 is lowered, and the article W thereon is lowered onto the loading / unloading conveyor 15. It is needless to say that the second lifted article support member 32 from the bottom does not collide with the article W on the loading / unloading conveyor 15. After that, the loading / unloading conveyor 15 and the connecting conveyor 47 are driven in the opposite direction to the loading, and all the articles W on the loading / unloading conveyor 15 are sent to the connecting conveyor 47. Then, the above operation is repeated.

[Second Embodiment of the Invention] (See FIGS. 7 and 8) In this description, the front means the left side of FIG. 7, the rear means the same right side, and the left means the lower side of FIG. 7. , Right means the same upper side.

A transfer roller 56 is rotatably provided on the upper portion of the rear member 35 with its axis oriented in the left-right direction. The upper end of the transfer roller 56 is positioned above the upper surfaces of the left and right members 33. The gap 46 has a front-rear width that allows the passing roller 56 to pass therethrough, but is made as narrow as possible. A notch 57 into which the transfer roller 56 of the lower lifting article support member 32 is fitted is formed in the lower portion of the rear member 35. Due to the action of the notch 57, the lifting article support member 32 can be vertically and closely overlapped.

In the second embodiment, when the articles W are transferred between the connecting conveyor 47 and the loading / unloading conveyor 15, the upper end of the transfer roller 56 conveys the connecting conveyor 47 and the loading / unloading conveyor 15. It is necessary to temporarily stop the lifting / lowering article support member 32 at a position that coincides with the surface. Other than that, the same operation as in the first embodiment may be performed.

[0023]

[Modifications, etc.] Modifications will be described below. (1) The connection conveyor 47 may be a carry-in conveyor, and a carry-out connection conveyor may be provided in front of the loading / unloading conveyor 15. In that case, loading / unloading conveyor 15
The present invention is used between a connecting conveyor and a connecting conveyor in front of it. Further, in this case, the stopper 52 can be raised and lowered. (2) In the first embodiment, the rear member 35 may be bent so that the gap 46 is simply divided into left and right.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an essential part showing a first embodiment of the present invention.

FIG. 2 is an arrow view of partial crushing along the line II-II in FIG.

FIG. 3 is an enlarged view of a portion A of FIG.

FIG. 4 is a sectional view of partially crushed along line IV-IV in FIG.

5 is an enlarged cross-sectional view taken along line VV of FIG.

FIG. 6 is a simplified diagram showing a state in which articles are stored.

FIG. 7 is a plan view of an essential part showing a second embodiment of the present invention.

8 is a view taken along the line VIII-VIII of FIG.

[Explanation of symbols]

1 Article storage device 15 In / out conveyor 32 Lifting goods support member 33 Left and right materials 34 Front material 35 Rear material 46 Gap 47 Connecting conveyor 49 First Passing Roller 50 Second passing roller 56 Passing roller

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65G 1/00-1/20 B65G 47/00-47/96

Claims (3)

(57) [Claims] 1. A loading / unloading conveyor, an elevating / lowering article support member that is vertically movable with respect to the loading / unloading conveyor, and a connection conveyor that is connected to the loading / unloading conveyor with a gap that allows the lifting / lowering article support member to move up and down. The lifting / lowering article support member scoops articles on the loading / unloading conveyor when rising,
In an article storage device configured to unload an article onto a loading / unloading conveyor when descending, a portion of the lifting article support member that passes through the gap bends forward and backward when viewed from a plane so as to divide the gap into left and right. The first transfer roller is provided in the loading / unloading conveyor so as to be positioned at the part of the gap on the loading / unloading conveyor side, and the second transfer roller is provided at the part of the clearance on the coupling conveyor side. An article storage device provided with rollers. 2. A portion of the lifting / lowering article support member that passes through the gap is bent forward and backward when viewed from a plane so as to divide the gap into a center portion in the left-right direction and a left-right portion.
The article storage device described. 3. A loading / unloading conveyor, an elevating / lowering article support member provided to be able to move up and down with respect to the loading / unloading conveyor, and a connecting conveyor connected to the loading / unloading conveyor with a gap allowing the lifting / lowering of the lifting / lowering article support member. The lifting / lowering article support member scoops articles on the loading / unloading conveyor when rising,
An article storage device configured to unload an article onto a loading / unloading conveyor when descending, wherein a delivery roller is provided above a portion of a lifting article support member that passes through a gap.