JP2017024854A - Receiving pipe, wheel conveyor and circulation shelf device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receiving pipe for a support plate that pivots a wheel for free rotation, a wheel conveyor which is assembled using the receiving pipe, and a circulation shelf device in which a plurality of wheel conveyors are combined in parallel.SOLUTION: In a receiving pipe 3, a step part 32 which supports a support plate 21 is formed along axial line direction. Relating to the wheel conveyor 1, the support plate 21 pivoting both sides in axial direction of a wheel 20 is placed between the pair of receiving pipes 3, 3, respectively, in an arrangement to face the step part 32. A circulation shelf device 4 has a configuration in which a plurality of wheel conveyors 1 are assembled in parallel.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a technical field of a receiving plate for a support plate that rotatably supports a wheel, a wheel conveyor assembled by using the receiving pipe, and a fluidized shelf device in which a plurality of wheel conveyors are combined in parallel. Belonging to.

Conventionally, as conveyors for transporting articles to be conveyed in factories, collection centers, etc., a wheel conveyor constituted by arranging a large number of wheels in parallel on the conveyance surface and a fluidized shelf apparatus constituted by using a plurality of the wheel conveyors are widely used. Has been used. For example, those disclosed in Patent Documents 1 and 2 below are well known.
The roller conveyor disclosed in Patent Document 1 below is a pair of left and right equipped with a plurality of conveyor rollers arranged in parallel and bearing plate engaging portions that engage with bearing plates formed at both ends of each conveyor roller. Side frame. The bearing plate engaging portion has a lateral groove shape with an inward lip and is formed over the entire length of the side frame. A slit for passing the shaft portion of the bolt is formed in the back wall of the bearing plate engaging portion, and a tap plate fitting space for installing the tap plate is formed on the back surface of the slit.
The plurality of roller conveyors are engaged by inserting the bearing plates sequentially from the end portions of the side frames to the bearing plate engaging portions. The pair of left and right bearing plates located at both ends of the side frame are fixed to the side frame by fixing means (bolts and tap plates) that prevent movement in the direction of dropping from the side frame.

The wheel conveyor disclosed in the following Patent Document 2 includes a wheel unit configured by providing a plurality of wheels in parallel between a pair of left and right side frames, and an opening having an inward rib on the upper surface. And a substantially groove-shaped cross-sectional frame.
The wheel unit is configured by attaching a shaft portion of each wheel to a plurality of bearing recesses provided on the upper surface of the side frame, and sliding the side frame from an end of the frame into a receiving groove. Inserted.
The frame has a configuration in which a groove portion having a structure capable of effectively dispersing a load is provided continuously below a receiving groove that supports the wheel unit.

JP-A-5-238527 JP 2010-23980 A

  In the conventional wheel conveyor, the wheel unit or the side frame may become dirty due to long-term use, or a part of the wheel may be damaged. There arises a problem that it cannot be reliably conveyed. For this reason, it is necessary to perform maintenance and repair as appropriate to realize good conveyance.

However, in the roller conveyor disclosed in Patent Document 1, each bearing plate is inserted and engaged with the bearing plate engaging portion from the end portion of the side frame, and the pair of left and right bearing plates located at both ends of the side frame are engaged. Since it is configured to be fixed to the side frame by using a fixing means, assembly and disassembly work is extremely troublesome.
In other words, to clean the dirt attached to the wheel unit and the side frame, release the roller conveyor fixing means located at the end of the side frame, and slide the bearing plates of each roller conveyor in order. Take out from and dismantle. Then, since it is necessary to insert and assemble the bearing plate into the bearing plate engaging portion again after cleaning, the operation of cleaning the wheel unit and the side frame is extremely inconvenient and troublesome. In addition, when a part of the wheel unit is damaged, it is extremely inconvenient to replace the wheel unit with a new one.
The side frame is formed in a lateral groove shape in which the bearing engaging portion has an inward lip, and further, a slit is formed in the back wall of the bearing engaging portion, and a tap plate is fitted on the back of the slit. Since it is a complicated structure in which a common space is formed, manufacturing is difficult and costly.

Since the wheel conveyor according to Patent Document 2 is also configured to be inserted by sliding the frame of the wheel unit from one side end of the side frame into the receiving groove, the work of assembling and disassembling is troublesome.
That is, like the roller conveyor disclosed in Patent Document 1, maintenance and repair cannot be performed quickly and easily. In addition, the structure is such that dirt is likely to accumulate in the groove provided in the lower part of the receiving groove, and that it is difficult to carefully clean every corner.
Furthermore, since the frame is manufactured by adjusting the width dimension of the receiving groove to the wheel width of the wheel unit, there is an inconvenience that cannot be applied to a wheel unit having wheels of different width dimensions.

  Therefore, an object of the present invention is a receiving pipe having a shape on which a wheel unit configured by rotatably connecting a wheel with support plates provided on both sides of the wheel can be placed, and by using this receiving pipe, It is an object of the present invention to provide a receiving pipe that is extremely simple in structure and capable of constructing an economical wheel conveyor. That is, an object of the present invention is to provide a receiving pipe having a configuration capable of positioning and positioning the wheel unit securely.

  The next object of the present invention is a structure that is very easy to assemble and disassemble by adopting a configuration in which a wheel unit is placed between receiving pipes arranged in parallel instead of a frame used in a conventional wheel conveyor. In particular, it is possible to quickly and easily remove the dirty wheel unit and reattach it after cleaning. If a part of the wheel unit is damaged, remove only the damaged part and replace it with a new wheel. It is an object of the present invention to provide a wheel conveyor having a structure capable of easily replacing the unit, and a fluidized shelf apparatus configured using the wheel conveyor.

As means for solving the above-mentioned problems of the prior art, the receiving pipe 3 according to the invention described in claim 1 is:
A receiving pipe 3 that supports a support plate 21 that rotatably supports a wheel 20;
A step 32 for supporting the support plate 21 is formed along the axial direction.
The invention described in claim 2 is the receiving pipe 3 described in claim 1,
The receiving pipe 3 is a pipe with a flat surface portion 31 formed in the axial direction with a required layer thickness, and the step portion 32 is formed using the layer thickness portion. And
The invention described in claim 3 is the receiving pipe 3 described in claim 1 or 2,
An anti-skid material 22 for preventing the support plate 21 from sliding off is attached to an end of the receiving pipe 3 in the axial direction.

The wheel conveyor 1 which concerns on the invention described in Claim 4 is the wheel conveyor 1 comprised using the receiving pipe 3 as described in any one of the said Claims 1-3,
It is characterized in that a support plate 21 that pivotally supports both sides in the axial direction of the wheel 20 is placed on a pair of receiving pipes 3 and 3 provided in an arrangement in which the stepped portions 32 face each other.
A flow shelf device 4 according to the invention described in claim 5 is characterized by being configured by incorporating a plurality of wheel conveyors 1 described in claim 4 in parallel.

The receiving pipe 3 according to the invention described in claims 1 to 3 is a material that supports a support plate 21 that rotatably supports both ends of the wheel 20, and this is a part of the resin layer coated on the outer periphery of the steel pipe 3. Is formed in a rectangular shape with a required layer thickness, and a flat portion 31 that is substantially flush with the axial direction is formed. Further, step portions 32 that are substantially perpendicular to the left and right edges of the flat portion 31 are formed.
Therefore, when the receiving pipes 3 are arranged in parallel at a predetermined interval, for example, as shown in FIG. 1, the substantially right-angled step portions 32, 32 are in a relative relationship (see FIG. 2, etc.).
Therefore, if the support plate 21 (see FIGS. 4 and 5) of the wheel unit 2 is placed on the stepped portion 32, the wheel unit 2 can be supported by itself.
Therefore, the frame found in the conventional wheel conveyor can be constituted by the receiving pipe 3. For several types of wheel units 2 having different widths (wheel lengths), it is only necessary to fix the interval between the receiving pipes 3 in accordance with the width of the wheel unit 2. There is no need to provide a dedicated frame.
Moreover, since it is not a conventional steel frame with a large weight, the handling of the work is improved, the work efficiency when assembling is increased, and the burden on the operator can be reduced.

A wheel conveyor according to a fourth aspect of the present invention and a fluidized shelf device according to the fifth aspect of the present invention are configured by a wheel unit 2 and a pair of receiving pipes 3 that support the wheel unit 2 from both sides. In addition, since the support plate 21 is simply configured to be placed on the step portions 32 of the left and right receiving pipes 3, the support plate 21 is also configured to prevent dust from accumulating, and can be assembled and disassembled very easily. In other words, since the wheel unit 2 can be attached and detached from the receiving pipe 3 very easily, for example, only the wheel unit 2 on which dirt has adhered can be removed from the receiving pipe 3 and cleaned. It is possible to attach it with a very simple operation. Further, even when a part of the wheel unit 2 is damaged, by removing only the damaged wheel unit 2 and replacing it with a new wheel unit 2, it is possible to immediately return to the conveying state. In this sense as well, the work is easy to manage, the normal state of the apparatus is easily maintained, and the configuration is easy for the operator.
Therefore, the wheel conveyor 1 and the fluidized shelf device 4 according to the present invention are excellent in maintenance and repair, and can always keep good article conveyance.

It is the perspective view which showed a part of wheel conveyor by this invention. It is the front view which showed the wheel conveyor same as the above. It is the perspective view which showed an example of the wheel unit which comprises a wheel conveyor. It is the perspective view which showed different embodiment of a wheel unit. (A) is the disassembled perspective view of different embodiment of a wheel unit, (B) is the perspective view which showed the assembly state of the wheel unit shown to (A). It is the perspective view which showed the receiving pipe by this invention. (A) is the front view of the wheel conveyor comprised by the small diameter wheel, (B) is the front view which showed the wheel conveyor comprised by the wheel with a small wheel width and a large diameter. It is the front view which showed the state which installed the wheel conveyor between the pillar materials erected right and left. It is the perspective view which showed the whole fluid shelf apparatus by this invention. It is a partial expansion perspective view of the wheel conveyor which uses a sliding prevention member. It is the perspective view which showed different embodiment of a wheel conveyor.

The receiving pipe according to the first to third aspects of the present invention has a configuration in which the step portion 32 that supports the support plate 21 is formed along the axial direction.
In the wheel conveyor 1 according to the invention described in claim 4, a support plate 21 that pivotally supports both sides in the axial direction of the wheel 20 is mounted between a pair of receiving pipes 3, 3 provided in an arrangement where the step portions 32 face each other. It is a configuration.
In the fluidized shelf device 4 according to the invention described in claim 5, the wheel conveyor 1 is passed between the side of the fluidized shelf device 4 where the article to be conveyed W is introduced and the side where the article is taken out. It is the structure incorporated in the angle which moves by the action of.

Below, based on the Example which illustrated the example of the receiving pipe 3 which concerns on this invention, and the wheel conveyor 1 comprised using this receiving pipe 3 first, it demonstrates.
As shown in FIGS. 1 and 2, two receiving pipes 3, 3 extending in a direction intersecting at right angles to a cross member 43 which is a synthetic resin-coated steel pipe provided in a horizontal state are connected to the left and right sides of the wheel unit 2. The support plates 21 are arranged at intervals so that the support plates 21 fit into each other, and are connected and fixed by using a connecting member 5 having two holding portions 50 and 51 in a direction orthogonal to the cross member 43.
One of the C-shaped first sandwiching portions 50 of the connecting member 5 is fitted into the outer peripheral surface of the cross member 43 from above, and the other perpendicular C-shaped second sandwiching portion 51 is placed near the end of the receiving pipe 3. The pipe part 30 is fitted and connected.
Therefore, the frame of the wheel conveyor 1 is formed by appropriately passing the receiving pipe 3 without using the frame which is a constituent member unlike the conventional wheel conveyor. And between each step part 32 and 32 of the two receiving pipes 3 and 3 arrange | positioned in parallel, the corner | angular part from the bottom face of the left and right support plate 21 of the wheel unit 2 to an outer surface is said step part. The wheel conveyor 1 is completed, which is placed so as to exactly match the stepped shape of 32 and in which a plurality of wheels 20 are continuously spread in the length direction of the receiving pipe 3.

In the wheel unit 2, for example, as shown in the first embodiment in FIG. 3, a plurality of (four in FIG. 3) wheels 20 adjacent to each other in the longitudinal direction of the receiving pipe 3 contact each other and interfere with each other. This is implemented as a configuration in which the rotation shaft 20a of each wheel 20 is supported by the support plates 21 and 21 disposed on both sides thereof, with the arrangement of the wheels 20 being arranged in parallel with a certain interval.
Alternatively, as in the second embodiment shown in FIG. 4, in the case of a wheel 20 having a short wheel width, a wheel unit 2 having a configuration in which two wheels 20 are arranged in parallel is used. What is necessary is just to use the wheel unit 2 with the optimal number of wheels and wheel width.

As another type of wheel unit 2, as shown in FIGS. 5A and 5B, the wheel 20 is provided on the inner side surface of a support plate 21 formed in a U shape when seen in a plan view. Projection shafts 20b to be inserted into the center of the boss are respectively provided at locations where the wheel 20 is installed, and a convex portion 21a that can be fitted to one end portion of the support plate 21 and a concave portion 21b on the other side. The protruding shafts 20b are inserted into the bosses of the wheel 20 by fitting the protruding portions 21a and the recessed portions 21b by abutting the end portions of the left and right support plates 21 and 21, respectively. Support for rotation.
A similar wheel conveyor 1 can be formed by using another type of wheel unit 2.

  As shown in FIGS. 2 and 6, the receiving pipe 3 has a flat surface portion 31 formed on the upper surface portion with a required layer thickness and substantially flush with the axial direction, and both end portions of the layer thickness portion. In this configuration, step portions 32 and 32 are provided. A flat surface portion 31 having a constant layer thickness (about 5 mm as an example) formed on the upper surface of the pipe portion 30 is integrally formed along the axial direction of the pipe portion 30. And the step part 32 by which the cross section which mounts and supports the support plate 21 of the said wheel unit 2 in L shape at the left and right edge parts of the said plane part 31 was notched was formed along the axial direction, respectively. ing.

The step portion 32 is formed in a shape and size so that the bottom surface and the side surface of the support plate 21 having a rectangular parallelepiped cross section are in contact with each other and no gap is formed. 1, 2, and 6, the support plate 21 has a rectangular cross section, and is formed in an L-shape so that the cross section of the support plate 21 is cut. Depending on the shape, for example, a curved shape or other various shapes and sizes are used.
However, it is important that the step portion 32 of the receiving pipe 3 has a shape in which dust and water do not easily collect, and it is important that the shape of the support plate 21 is placed exactly so that there is no gap.
Although not shown in detail, the step portion 32 can be implemented with a configuration formed only on one edge of the flat portion 31 in the case of FIGS. 1 and 10.
However, as shown in FIG. 11, in the case of a configuration in which one receiving pipe 3 is shared to support two adjacent rows of wheel units 2, the stepped portions 32 of the receiving pipe 3 are arranged on both sides of the plane portion 31. It is preferable to carry out by forming it symmetrically at the edge of the.
If the step portions 32 are formed on both edge portions, the left and right step portions 32 and 32 can support the two support plates 21 and 21 on both sides, which is convenient and the cost is reduced. Or of course, it can implement by the structure formed only partially in the location in which the wheel unit 2 is installed.

  In addition, the wheel unit 2 constituted by the wheel 20 having a long wheel width shown in FIG. 7A using the common support plate 21 or the wheel 20 having a small diameter and a short wheel width as shown in FIG. 7B. Even in the configured wheel unit 2, if the arrangement interval of the receiving pipe 3 is adjusted to an interval that matches the width of each wheel unit 2 and is fixed to the cross member 43, various types of wheel conveyors 1 can be implemented. Is possible.

Next, FIG. 1, FIG. 2 and FIG. 7 show a configuration in which the wheel conveyor 1 is attached to a cross member 43 made of a pipe material, and FIG. 8 shows a configuration in which the wheel conveyor 1 is attached to a vertical column member 42. Therefore, these will be described below.
About the wheel conveyor 1, as shown in FIG.1, FIG.2 and FIG.7, each receiving pipe 3 is attached to the cross member 43 using the connection member 5, and is installed.
The connecting member 5 is made of resin, and a C-shaped first clamping portion 50 that clamps the outer peripheral surface of the cross member 43 and a C-shaped second clamping portion that clamps the outer peripheral surface of the pipe portion 30 of the receiving pipe 3. The connecting member 5 is fitted and installed in the cross member 43 or the receiving pipe 3 through the openings of the holding parts 50 and 51.
The connecting member 5 can be adjusted by shifting the attachment position along the axial direction of the cross member 43 and the receiving pipe 3. Therefore, as illustrated in FIG. 2 and FIG. 7B, it can be installed and used at a position that matches the width (axial length) of the wheel 20.

Although not shown in detail, as shown in FIG. 9, the conventional conveyor bracket-type connecting member 46 has a hook portion that covers the pipe surface of the cross member 43 and is orthogonal to the hook portion. The connecting member has a configuration in which two pipe insertion portions that can be inserted in the shape of the receiving pipe 3 are protruded in the direction, and the wheel conveyor 1 can be assembled even when such a receiving bracket for the conveyor is used.
In the case of this type of connecting member 46, the end portion of the receiving pipe 3 is closed by the insertion portion, so that it is not necessary to install the slip-preventing member 22 described in detail later.

  As shown in FIG. 8, the wheel conveyor 1 can be installed between column members 42 and 42 erected on the left and right. If it demonstrates concretely, the said wheel conveyor 1 will be to the 2nd clamping member 51 of the connection member 5 which attached the 1st clamping member 50 to the left and right pillar materials 42 and 42 arrange | positioned according to the width dimension of the wheel unit 2, respectively. The receiving pipe 3 is attached and installed. The flat portion 31 of the receiving pipe 3 is attached to the connecting member 5 in a lateral direction toward the wheel unit 2, and the support plate 21 of the wheel unit 2 is placed on a step portion 32 positioned on the upper side.

Next, on the basis of FIGS. 9 to 11, the shelf surface 41 is constructed by incorporating the wheel conveyor 1 described in the paragraph numbers [0016] to [0024] at an angle at which the article W to be conveyed moves by the action of gravity. The configuration of the fluidized shelf device 4 will be described.
The flow shelf device 4 shown in FIG. 9 connects two column members 42 and 42 located on the input side A and take-out side B of the article W to be transported, and the depth member 43a by a joint member 45, First, a structure to be the left and right side frames 40 is configured. Next, the left and right side frames 40 on the input side A of the transported article W are connected by the cross member 43, and the take-out side B is similarly connected by the cross member 43 to complete the skeleton.
Then, if the receiving pipes 3 are passed over the cross members 43 on the input side A and the extraction side B at intervals corresponding to the width of the wheel unit 2 to be used, a frame of a conventional wheel conveyor component is formed. Therefore, when the support plate 21 of the wheel unit 2 is placed and spread on the stepped portions 32 of the receiving pipes 3 and 3 facing each other, the wheel conveyor 1 is configured and the shelf surface 41 of the fluidized shelf device 4 is configured.

  Therefore, in the present invention, when the shelf surface 41 is configured, the fluidized shelf device 4 can be constructed without using a wheel conveyor having a frame. Therefore, the mounting operation is performed for each component, and each is lightweight and is handled by the operator. And easy assembly work. In addition, since the configuration of the wheel conveyor 2 itself is such that dust and the like are not easily collected, the fluidized shelf device 4 of the present invention is excellent in maintenance inspection and repairability, and always maintains a stable article conveyance state. Become a fluid rack device.

By the way, if the attachment position of the cross member 43 on the article input side A is attached to a position higher than the cross member 43 on the take-out side B and a certain gradient is set on the wheel conveyor, the article to be conveyed W is sent by gravity. be able to. When the receiving pipe 3 is inclined at a moving angle (for example, 1 to 2 degrees), when the article to be conveyed W is introduced into the insertion side A of the shelf surface 41, the article to be conveyed W is self-propelled to the extraction side B by its own weight. Then, since each article W to be transported is sequentially stored in a daisy chain on the take-out side B, the articles to be transported W can be sequentially supplied to the worker.
On the take-out side B, it is preferable to install a cross member 43b that temporarily stops the article to be conveyed W at an upper portion of the cross member 43.
Since the connecting member 46 described in the paragraph [0023] is used for the bottom shelf surface 41, the cross member 43 itself also serves as the cross member 43b. Not used.

In the embodiment of FIG. 9, the shelf surfaces 41 are provided in three stages, and on each shelf surface 41, two sets of two wheel conveyors 1 arranged in parallel at intervals where the articles to be conveyed W are placed are arranged in parallel. The articles to be conveyed W are configured to flow in two rows with respect to one shelf.
Further, a free wheel 44 is attached to the lower end portion of each column member 42, and the fluid shelf device 4 can be freely moved and used. When the place of use is always fixed, the lower end portion of the column member 42 may be placed directly on the floor without using the universal wheel 44.

  FIG. 11 shows a different embodiment when a plurality of wheel conveyors 1 are configured as the shelf surface 41. When two sets of wheel conveyors 1 are provided in parallel, normally, as shown in FIG. 10, one set of wheel conveyors 1 constituted by two receiving pipes 3 and 3 facing each other is provided, and another set is provided with an interval. Two sets of wheel conveyors 1 are provided which are provided in parallel and normally use four receiving pipes 3. However, if the three receiving pipes 3 are arranged, the stepped portions 32 on both edges can be used. Therefore, if the intermediate receiving pipe 3 is a common receiving pipe 3 on the left and right, two sets of wheel conveyors 1 can be constructed. When the wheel conveyor 1 is provided on the entire surface, the cost can be reduced by omitting the quantity of the receiving pipes 3 and the work efficiency is good.

Further, in the case of the inclined wheel conveyor 1, the wheel unit 2 is simply placed on the stepped portion 32, so that there is a possibility that the wheel unit 2 easily moves and slides from the end of the receiving pipe 3.
Therefore, for example, as shown in FIG. 10, after removing the step portion 32 around the end portion of the pipe portion 30 and processing the end portion into a circular tube shape, the anti-sliding member 22 is fitted into the end portion and the wheel is moved. The unit 2 is configured not to slide down.
This uses a conventional pipe member as the slip prevention member 22 of the present invention, and is made of a C-shaped synthetic resin having an inner diameter substantially the same as the outer diameter of the pipe portion 30 of the receiving pipe 3. . A protrusion 22 a is formed on the outer surface of the slip-preventing member 22, and is fitted into the pipe portion 30 so as to close the step by aligning the position of the protrusion 22 a with the end of the step 32. Used in.
In the flow shelf device 4 of FIG. 9, the structure is attached only to the end portion on the take-out side B of the receiving pipe 3, but the slip-preventing member 22 is connected to the end on the input side A of the receiving pipe 3. If it is carried out with the structure attached to the section, sliding from the input side A can be prevented and it is further safe.
Further, the slip-off preventing member 22 is not limited to the illustrated embodiment. As long as it can be attached to the end portion of the receiving pipe 3 and can prevent the support plate 21 from slipping, various materials such as a rubber material as a material or a cap shape that can be inserted into the pipe end portion as it is are various. The material and shape can be used.

  Although the present invention has been described above based on the embodiments shown in the drawings, the present invention is not limited to the illustrated embodiments. It should be noted that it includes a range of design changes and application variations that are usually made by those skilled in the art without departing from the technical idea thereof.

DESCRIPTION OF SYMBOLS 1 Wheel conveyor 2 Wheel unit 20 Wheel 21 Support board 22 Sliding prevention member 22a Protrusion part 3 Receiving pipe 31 Plane part 32 Step part 4 Flow shelf apparatus 40 Side frame 41 Shelf surface 42 Column material 43 Cross member 5 Connecting member W Conveyed article

Claims (5)

A receiving pipe that supports a support plate that rotatably supports a wheel,
The receiving pipe characterized by the step part which supports the said support plate being formed along the axial direction. The receiving pipe is a pipe with a flat portion formed substantially flush with the required layer thickness in the axial direction,
The receiving pipe according to claim 1, wherein the step portion is formed using the layer thickness portion.   The receiving pipe according to claim 1 or 2, wherein a slip-preventing material for preventing the support plate from slipping is attached to an end portion of the receiving pipe in the axial direction. A wheel conveyor configured using the receiving pipe according to any one of claims 1 to 3,
A wheel conveyor comprising: a support plate that pivotally supports both sides in the axial direction of the wheel between a pair of receiving pipes provided in an arrangement in which the stepped portions face each other.   A fluid shelf device comprising a plurality of wheel conveyors according to claim 4 incorporated in parallel.

Images