JP2009255949A - Bucket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a bucket taking out an accommodated object without applying a physical burden to an operator even when the accommodated object runs low. <P>SOLUTION: The bucket is equipped with: a box body in which an upper face is opened, and which consists of a bottom part and side wall parts surrounding four sides; a movable bottom plate opposing the bottom part of the box body and provided approximately in parallel; and a lifting mechanism for moving the movable bottom plate up and down in the depth direction of the box body. By elevating the movable bottom plate, the accommodated object is taken out without taking an unnatural posture when taking out the accommodated object from the bucket even when the accommodated object runs low. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bucket for storing articles, and more particularly to a bucket used for cargo handling / storage of goods in logistics or production sites.

  Usually, in logistics and production sites, goods are mounted on a hand cart for transportation. Then, the conveyed article is transferred to a work table or a storage shelf. At this time, depending on the article, there are a case where it is directly mounted on a transport cart and transported, and a case where it is placed in a container such as a container and mounted on a transport cart.

As a case where an article is directly mounted on a transport cart and transported, for example, there is an operation of transporting a paper sheet such as printed matter on a transport cart and transferring it to a work table.
In this case, since the level of the uppermost side of a large number of loaded paper sheets is high, it is easy to transfer to the workbench, but the level of the uppermost side of the paper sheets is lowered sequentially. Then, in order to lift the paper sheets remaining on the transport carriage, it is necessary to bend down or bend the legs to a low posture, and there is a problem that a physical burden is placed on the worker.
On the other hand, when paper sheets are transferred to the transport cart, the paper sheets are initially placed at a low level, so it is still necessary to bend down or bend their legs into a low posture. There was a problem that the worker was physically burdened.
As a solution to such a problem, there is disclosed a pallet on which an article placed in a horizontal state with respect to a traveling carriage is mounted, and a transport device including a lifting device that lifts and lowers the pallet in a horizontal state (for example, , See Patent Document 1).

Further, as a case where an article is placed in a container such as a container and is carried on a transportation cart, a ball box containing pachinko balls may be mounted on the cart and carried to a ball box counter.
In this case, when lifting the ball box containing the pachinko balls, which are heavy objects, from the cart to the height of the ball box counter, the operator is forced to work with an unnatural body shape, so it takes a heavy burden on the body There was a problem.
As a solution to such a problem, a ball provided with a carriage standing portion fixed substantially perpendicular to the carriage base, and a fork portion capable of loading a ball box and moving along the carriage standing portion. A cart device for carrying a box is disclosed (for example, see Patent Document 2).

Japanese Patent Application Laid-Open No. 07-117850 (pages 2 and 3, FIG. 1) JP 2004-24290 A (4th page, FIG. 1)

In logistics and production sites, articles are often transported or stored in buckets such as plastic containers. In particular, at the production site, parts used for production are transported and stored in a bucket.
Since this bucket stores many articles, the depth of the bucket is increased.
Therefore, when taking out the stored items from such a bucket, if the stored items in the bucket are low, the operator will be forced to bend his waist or insert his hand into the bucket. There was a problem that it took a physical burden.

  The transport device described in Patent Document 1 or the cart device for transporting a ball box described in Patent Document 2 mounts the bucket itself containing the stored items on the transport device, or from the transport device to the work table or storage shelf. It is effective in relieving the physical burden on the operator when transferring to the container, but when removing the stored item from a deep bucket with less stored item, bend the waist or put the hand in the bucket. The physical burden applied to the worker cannot be eliminated by taking an unreasonable posture such as inserting it into the head.

  The present invention has been made to solve the above-described problems, and in a bucket having a predetermined depth, even if the amount of items stored in the bucket is reduced, the operator is not burdened physically. It is to obtain a bucket from which stored items can be taken out.

  The bucket according to the present invention has an opening at the top, a box made up of a bottom and side walls surrounding the four sides, a movable bottom plate provided substantially parallel to the bottom of the box, and the movable bottom plate of the box. And an elevating mechanism for elevating in the depth direction.

  The bucket according to the present invention has an opening at the top, a box made up of a bottom and side walls surrounding the four sides, a movable bottom plate provided substantially parallel to the bottom of the box, and the movable bottom plate of the box. Since it is equipped with an elevating mechanism that moves up and down in the depth direction, even if the stored items become low by raising the movable bottom plate, when removing the stored items from the bucket, bend the waist or put the hand in the bucket The stored item can be taken out without taking an unreasonable posture such as deep insertion into the body, and the physical burden on the operator can be eliminated.

Embodiment 1 FIG.
FIG. 1 is a schematic top view of a bucket according to Embodiment 1 of the present invention.
FIG. 2 is a schematic diagram of a side surface from which the lever of the bucket according to the first embodiment of the present invention protrudes.
FIG. 3 is a schematic top view of the movable bottom plate.
FIG. 4 is a schematic diagram of the AA cross section in the schematic top view shown in FIG. 1 of the bucket according to the first embodiment of the present invention.
FIG. 5 is a schematic view of the bucket according to the first embodiment of the present invention, taken along the line BB in the top schematic view shown in FIG.
The bucket 100 of the present embodiment shown in FIGS. 1 to 5 has an opening at the top, a box 1 composed of a bottom 11 and side walls surrounding the four sides, and a box 1 facing the bottom 11 of the box 1. The rectangular movable bottom plate 13 provided substantially in parallel, the lifting mechanism 2 that lifts and lowers the movable bottom plate 13 in the depth direction of the box 1, that is, the depth direction of the bucket 100, and the movable bottom plate 13 is lifted and lowered. And a guide rod 15 for guiding.

As shown in FIG. 2, the box 1 is formed with a slit 17 in the depth direction in the first side wall portion 12 a. A scale 18 indicating the position of the movable bottom plate 13 is provided along the slit 17 on the outer surface of the first side wall 12 a.
As shown in FIG. 4 and FIG. 5, the lifting mechanism 2 is installed inside the first side wall 12 a, and the lever 23 of the lifting mechanism 2 is formed on the first side wall 12 a. Projecting from the slit 17.
The guide bar 15 is provided in the box 1 in the vicinity of the inside of the second side wall portion 12b facing the first side wall portion 12a.
As shown in FIG. 3, the movable bottom plate 13 has a female screw that is screwed with the male screw rod 21 of the elevating mechanism 2 approximately at the center of the portion of the movable bottom plate 13 that faces the first side wall portion 12 a of the box 1. A hole 13a is provided, and a guide hole 13b through which the guide rod 15 is inserted is provided at the approximate center of the portion of the movable bottom plate 13 that faces the second side wall 12b of the box 1.

The guide rod 15 inserted through the guide hole 13b provided in the movable bottom plate 13 has one end fixed to the bottom portion 11 and the other end provided to the second side wall portion 12b of the box body 1. 16 is fixed.
The male screw rod 21 screwed into the female screw hole 13 a provided in the movable bottom plate 13 is rotatably held at one end of the male screw rod 21 and the other end forms a cover 22 of the lifting mechanism 2. The fixed portion 22a is rotatably held.
The cover 22 houses an operating portion that transmits the downward or upward linear motion of the lever 23 to the rotational motion of the male screw rod 21.

Next, the lifting mechanism 2 that lifts and lowers the movable bottom plate 13 will be described in more detail.
The elevating mechanism 2 is screwed into the female screw hole 13a of the movable bottom plate 13, and is rotated at the same time as the male screw rod 21 fixed to the lower portion of the male screw rod 21 and the male screw rod 21 that moves the movable bottom plate 13 up and down. A crown gear 24, a pinion gear 25 that meshes with the crown gear 24 and rotates the crown gear 24, a timing belt 26 having teeth that mesh with the teeth of the pinion gear 25, and a timing belt 26 joined to the timing belt 26. The lever 23 to move and the cover 22 which covers the action | operation part of the raising / lowering mechanism 2 are provided.

As described above, the male screw rod 21 is rotatably held by the bottom portion 11 and the male screw rod fixing portion 22 a forming the cover 22.
Further, the pinion gear 25 is installed at a position where the teeth mesh with the teeth of the crown gear 24 and the teeth of the timing belt 26. The pinion gear 25 is attached to a pinion gear shaft 25 a held by both side plate portions 22 b forming the cover 22, and stands in a direction substantially perpendicular to the bottom portion 11.
The timing belt 26 installed so that its teeth mesh with the teeth of the pinion gear 25 has a ring shape, and is a timing belt upper shaft 26a held by both side plates 22b forming the cover 22 and the timing belt. The lower shaft 26 b is installed substantially perpendicular to the bottom 11. The holding of the timing belt upper shaft 26a and the timing belt lower shaft 26b by the side plate portion 22b may be either fixed holding or rotatable holding.
The lever 23 has one end joined to a portion of the timing belt 26 facing the first side wall 12a of the box 1. The other end of the lever 23 protrudes from a slit 17 provided in the first side wall 12 a of the box 1.

Next, an example of the bucket manufacturing method of the present embodiment will be described.
First, the box body 1 is manufactured, which includes a main body portion of the bucket 100, an upper portion being opened, a bottom portion 11 and a side wall portion surrounding the four sides, and a first side wall portion 12a provided with a slit 17 in the depth direction.
Next, the movable bottom plate 13 is prepared, and a female screw hole 13a is provided in the central portion in the vicinity of the first side, which is a portion facing the first side wall portion 12a of the movable bottom plate 13, so that the first A guide hole 13b is provided in the center near the second side opposite to the side.
Next, the pinion gear shaft 25a on which the pinion gear 25 is set, the timing belt upper shaft 26a on which the timing belt 26 is set, and the timing belt lower shaft 26b are placed at predetermined positions on both side plate portions 22b of the cover 22. Is attached to set the operating portion of the lifting mechanism 2 in the cover 22. At this time, the lever 23 is joined to the timing belt 26 in advance. The lever 23 is joined to the timing belt 26 by, for example, screwing.

Next, the male screw rod 21 having the crown gear 24 fixed at a predetermined position is screwed into the female screw hole 14 a of the movable bottom plate 13.
Next, the lever 23 protrudes from the slit 17 so that both side plate portions 22b of the cover 22 on which the operating portion of the elevating mechanism 2 is set are placed inside the first side wall portion 12a and the bottom portion 11 of the box 1. Install it.
Next, the male screw rod 21 screwed to the movable bottom plate 13 is rotatably held by the bottom portion 11 and the male screw rod fixing portion 22 a that forms the cover 22. At this time, the teeth of the crown gear 24 fixed to the male screw rod 21 are installed so as to mesh with the teeth of the pinion gear 25.
Next, the guide rod 15 is inserted into the guide hole 13 b of the movable bottom plate 13, and the guide rod 15 is fixed by the bottom portion 11 and the guide rod fixing plate 16.
Finally, a scale 18 indicating the position of the movable bottom plate 13 is provided along the slit 17 to complete the bucket 100.

In the bucket 100 of the present embodiment, plastic or metal is used as the material of the box 1. In particular, in the case of plastic, the box 1 can be easily formed by molding or the like, and the weight of the bucket can be reduced.
Also, plastic and metal are used for the material of the crown gear 24, the pinion gear 25, and the lever 23.
In addition, it is preferable to use a timing belt for an engine part of an automobile as the timing belt 26 because it is lightweight and strong.

Next, the operation mechanism of the bucket 100 of the present embodiment will be described.
FIG. 6 is a schematic diagram showing a state where the movable bottom plate is at the lowermost part in the lifting mechanism of the movable bottom plate of the bucket according to the first embodiment of the present invention.
FIG. 7 is a schematic diagram showing a state in which the movable bottom plate is raised by lowering the lever in the lifting mechanism of the movable bottom plate of the bucket according to the first embodiment of the present invention.
FIG. 8 is a diagram illustrating a flowchart (a) for raising the movable bottom plate and a flowchart (b) for lowering the movable bottom plate in the operation of the bucket according to the first embodiment of the present invention.

As shown in FIG. 6, when the movable bottom plate 13 is at the lowest position, the lever 23 is at the highest position of the slit 17.
As shown in FIG. 7, when the movable bottom plate 13 is to be raised, the lever 23 is first pushed downward. Then, the side to which the lever 23 of the timing belt 26 is joined rotates in the downward direction. As a result, the side of the timing belt 26 that meshes with the pinion gear 25 moves upward. Accordingly, the pinion gear 25 rotates clockwise in the drawing of FIG. 7, and this rotation is transmitted to the crown gear 24, and the male screw rod 21 joined to the crown gear 24 rotates clockwise. Since the male screw rod 21 is a left-hand screw, the movable bottom plate 13 screwed with the male screw rod 21 is raised.
The progress of these series of operations is represented by the flowchart of FIG.

Although not shown, when the movable bottom plate 13 is to be lowered, the lever 23 is first pushed upward. Then, the side of the timing belt 26 to which the lever 23 is joined rotates in the upward direction, and the side of the timing belt 26 that meshes with the pinion gear 25 moves downward. Accordingly, the pinion gear 25 rotates counterclockwise in the drawing of FIG. 7, and this rotation is transmitted to the crown gear 24, and the male screw rod 21 joined to the crown gear 24 rotates counterclockwise. Then, the movable bottom plate 12 screwed with the male screw rod 21 that is a left-hand screw is lowered.
The progress of these series of operations is represented by the flowchart of FIG.

Since the bucket 100 according to the present embodiment includes the movable bottom plate 13 that moves up and down, when the stored item is taken out from the bucket in which the stored item is low, the movable bottom plate 13 is raised to bend the waist or The stored item can be taken out without taking an unreasonable posture such as inserting the bag deeply into the bucket, and the physical burden on the worker can be eliminated.
In addition, the lifting mechanism 2 of the movable bottom plate 13 in the bucket 100 according to the present embodiment transmits the rotation of the timing belt 26 to which the lever 23 is joined to the rotation of the male screw rod 21 through the pinion gear 25 and the crown gear 26. The movable bottom plate 13 having the female screw holes 12a screwed into the male screw rod 21 is moved up and down by the rotation of the male screw rod 21, and the movable bottom plate 13 can be moved and locked to a desired position in the lifting range. At the same time, the movable bottom plate 13 is not lowered due to gravity applied by the stored items.
Moreover, since the movable bottom plate 13 is raised by depressing the lever 23, the movable bottom plate 13 can be easily raised even if the weight of the stored item is heavy.
In addition, since the guide bar 15 is inserted into the guide hole 13b of the movable bottom plate 13, it is possible to prevent the movable bottom plate 13 from being greatly bent by the stored items and the movable bottom plate 13 from being lifted and lowered. Is easy.
Moreover, since the scale 18 is provided along the slit 17 from which the lever 23 protrudes, the position of the movable bottom plate 13 can be easily understood even if the stored items are stored in the bucket.

In the bucket 100 of the present embodiment, the movable bottom plate 13 is provided with one guide hole 13b and is guided by one guide rod 15. However, the movable bottom plate 13 is provided with a plurality of guide holes and a plurality of guide rods. You may guide.
In the bucket 100 of the present embodiment, the pinion gear shaft 25a, the timing belt upper shaft 26a and the timing belt lower shaft 26b are held by both side plate portions 22b forming the cover 22, but the box 1 You may hold | maintain with the both-sides wall part of the box 1 currently formed at right angle with respect to the 1st side wall part 12a.

Embodiment 2. FIG.
FIG. 9 is a schematic cross-sectional view corresponding to FIG. 5 of the bucket according to the first embodiment in the bucket according to the second embodiment of the present invention.
The bucket 200 of the present embodiment is the same as the bucket 100 of the first embodiment, except that the opening 32 is provided in the bottom 31 of the box 3.
The bucket 200 according to the present embodiment has the same operations and effects as the bucket 100 according to the first embodiment, and can be reduced in weight because the bottom 31 of the box 3 is open.

  The bucket according to the present invention can take out the stored matter without taking an unreasonable posture even if the stored item becomes small when taking out the stored item from the bucket, thereby eliminating the physical burden on the operator. It can be used effectively for cargo handling and storage at logistics and production sites.

It is an upper surface schematic diagram of the bucket concerning Embodiment 1 of this invention. It is a schematic diagram of the side surface which the lever of the bucket concerning Embodiment 1 of this invention protrudes. It is an upper surface schematic diagram of the movable bottom plate of the bucket concerning Embodiment 1 of this invention. It is the schematic diagram of the AA cross section in the upper surface schematic diagram shown in FIG. 1 of the bucket concerning Embodiment 1 of this invention. It is the schematic diagram of the BB cross section in the upper surface schematic diagram shown in FIG. 1 of the bucket concerning Embodiment 1 of this invention. It is a schematic diagram which shows the state which has a movable bottom plate in the lowest part in the raising / lowering mechanism of the movable bottom plate of the bucket concerning Embodiment 1 of this invention. In the raising / lowering mechanism of the movable bottom plate of the bucket concerning Embodiment 1 of this invention, it is a schematic diagram which shows the state which a movable bottom plate raises by lowering a lever. It is a figure which shows the flowchart (a) which raises a movable bottom plate in the operation | movement of the bucket concerning Embodiment 1 of this invention, and the flowchart (b) which lowers a movable bottom plate. It is a schematic diagram of the cross section corresponded in FIG. 5 of the bucket of Embodiment 1 in the bucket concerning Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box body, 2 raising / lowering mechanism, 3 box body, 11 bottom part, 12a 1st side wall part,
12b 2nd side wall part, 13 movable bottom plate, 13a female screw hole, 13b guide hole,
15 guide bar, 16 guide bar fixing plate, 17 slit, 18 scale,
21 male screw rod, 22 cover, 22a male screw rod fixing portion, 22b side plate portion,
23 lever, 24 crown gear, 25 pinion gear, 25a shaft for pinion gear,
26 timing belt, 26a timing belt upper shaft,
26b Lower shaft for timing belt, 31 bottom, 32 opening,
100,200 buckets.

Claims (6)

  A box having an open top surface and a side wall that surrounds the bottom and four sides, a movable bottom plate provided substantially parallel to the bottom of the box, and the movable bottom plate in the depth direction of the box The bucket provided with the raising / lowering mechanism which raises / lowers.   An elevating mechanism having a male screw rod screwed into a female screw hole provided in the movable bottom plate, a crown gear fixed to the male screw rod and rotating simultaneously with the male screw rod, a pinion gear meshing with the crown gear; The bucket according to claim 1, further comprising: a timing belt provided with teeth that mesh with teeth of the pinion gear; and a lever that is joined to the timing belt and moves the timing belt.   A lifting mechanism is installed inside the side wall of the box, and a slit is provided in the side wall of the box where the lifting mechanism is installed, and the other end of the lever whose one end is joined to the timing belt is connected to the box from the slit. The bucket according to claim 2, wherein the bucket protrudes to the outside.   A timing belt is installed substantially perpendicular to the bottom of the box, and the movable bottom plate is raised by pushing down a lever that is joined to the timing belt and protrudes to the outside of the box. Item 4. The bucket according to item 3.   The bucket according to any one of claims 1 to 4, wherein a guide hole is provided in the movable bottom plate, and a guide rod that is erected on the bottom of the box is inserted through the guide hole.   The bucket according to any one of claims 1 to 5, wherein an opening is provided at a bottom of the box.

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