WO2006087860A1

WO2006087860A1 - Wheel conveyor device

Info

Publication number: WO2006087860A1
Application number: PCT/JP2005/021979
Authority: WO
Inventors: Yoshio Takada
Original assignee: Polynest Co., Ltd.
Priority date: 2005-02-21
Filing date: 2005-11-30
Publication date: 2006-08-24
Also published as: JP4945435B2; JPWO2006087860A1; JP2005330100A

Abstract

A wheel conveyor device used to convey articles. A frame (10) is constructed of two pieces of angle steel (10a, 10b), and the two are joined back-to-back at their long plate like sections and arranged such that the long plate-like sections joined back-to-back form a vertical wall (20) extending in the conveyance direction. Bolts (11) on each of which a wheel (12b) and a washer (13b) are fitted are inserted into through-holes formed at predetermined intervals in the vertical wall (20). After that, a washer (13a) and a wheel (12a) that are of the same kinds as the above are fitted on each of the bolts (11). Then a nut (14) is screwed on each bolt (11) to fix inner rings of the pair of the wheels (12a, 12b) to the frame (10) such that the rings clasp the vertical wall (20). Each of the wheels (12a, 12b) is constituted of two bearings, and their outer rings are rotatable on the bolt (11) as the center.

Description

Specification

Hoi-no-recom

Technical field

[0001] The present invention relates to a wheel competitor device used for transferring an article.

Background art

[0002] A conventional wheel competitor device used for transferring an article has a configuration in which wheel conveyor units as shown in FIGS. 7A to 7C are arranged so as to be parallel to each other by a predetermined distance from each other. It has become. Here, FIGS. 7A, 7B, and 7C are a plan view, a front view, and a side view, respectively, showing the main part of the wheel conveyor unit. Each wheel competitor unit is arranged in the transport direction at a predetermined interval with two long plate-like members that face each other and extend in the transport direction or a frame 50 that is a U-shaped long member that extends in the transport direction. And a plurality of wheels 52 attached to the frame 50. Each wheel 52 is formed between two long plate-like members as the frame 50 or a long plate-like plate having a U-shaped cross section. It is sandwiched between members and is attached to the frame 50 so as to be rotatable. There is also a wheel compressor unit having a structure in which a large number of wheels are rotatably attached to a frame as a single long plate-like member (for example, Japanese Patent Laid-Open No. 8-2624).

[0003] According to such a wheel competitor device, various articles can be placed thereon and transferred by a predetermined drive source, gravity or manually in the extending direction of the wheel competitor unit. I'll do it.

Patent Document 1: Japanese Unexamined Patent Publication No. 8-2624

Patent Document 2: Japanese Unexamined Patent Publication No. 2003-54721

Disclosure of the invention

Problems to be solved by the invention

[0004] However, the conventional wheel compressor device is intended to transfer relatively light weight (for example, 500 to 600 kg or less) articles, and transfers a large and heavy (for example, 1 to 2 t) article. The wheel conveyor device used for transport is complicated and expensive. It was.

[0005] Accordingly, an object of the present invention is to provide a wheel competitor device that can withstand a large load with a simple configuration.

Means for solving the problem

[0006] A first aspect of the present invention is a wheel conveyor device for transferring an article to be placed in a predetermined direction,

A frame member having an inverted T-shaped cross section having a vertical wall extending in the predetermined direction, and a plurality of wheel mechanisms arranged at predetermined intervals from the frame member;

Each wheel mechanism

A rod-shaped member penetrating the vertical wall;

And a pair of wheels mounted so as to be rotatable around the rod-like member and sandwich the vertical wall.

[0007] A second aspect of the present invention is the first aspect of the present invention,

The frame member consists of two angle steels,

The two angle steels are characterized in that long plate-like portions are overlapped with each other back to back, and the plate-like portions are arranged so as to form the vertical wall.

[0008] A third aspect of the present invention is the first or second aspect of the present invention,

The rod-shaped member is a bolt,

Each wheel

An inner annular member through which the rod-shaped member passes,

An outer annular member that rotatably fits with the inner annular member via a rolling element,

Each wheel mechanism is screwed into an inner annular member of the pair of wheels sandwiching the vertical wall and an end of a bolt as the rod-shaped member penetrated through the vertical wall. It further includes a nut as a fastening member for fixing the inner annular member of the wheel to the vertical wall.

[0009] A fourth aspect of the present invention is the third aspect of the present invention, One of the pair of wheels in each wheel mechanism is configured by stacking a predetermined number of bearings including an inner ring corresponding to the inner annular member and an outer ring corresponding to the outer annular member, and the other is It is characterized in that the predetermined number of bearings of the same type as the bearings are stacked.

[0010] According to a fifth aspect of the present invention, in the first or second aspect of the present invention,

A plurality of the frame members to which the plurality of wheel mechanisms are attached are provided, and the plurality of frame members are arranged in parallel with each other with a predetermined distance therebetween.

[0013] A sixth aspect of the present invention is a wheel conveyor device for transferring an article to be placed in a predetermined direction,

Two frame member forces having a vertical wall extending in the predetermined direction and facing each other,

A plurality of wheel mechanisms arranged at predetermined intervals in the frame part, and each wheel mechanism,

A first rod-like member penetrating a first vertical wall which is one of the two frame members;

A second rod-shaped member penetrating the second vertical wall, which is the other vertical wall of the two frame members,

A first wheel rotatably mounted around the first rod-shaped member; a second wheel rotatably mounted around the second rod-shaped member; and between the two frame members And a cylindrical member that covers the outer peripheral surfaces of the first and second wheels.

[0012] A seventh aspect of the present invention is the sixth aspect of the present invention,

The two frame members are angle steel having a long plate-shaped portion, and the horizontal surface of each angle steel is arranged to face the inside of the frame part,

The vertical surfaces of each angle steel are opposed to each other, and the vertical surface of one angle steel of the two frame members forms the first vertical wall, and the two frame members The other vertical angle of the angle steel is arranged so as to form the second vertical wall.

[0013] An eighth aspect of the present invention is the sixth or seventh aspect of the present invention,

The first and second rod-shaped members are bolts;

The first wheel is

A first inner annular member through which the first rod-shaped member passes;

A first outer annular member that rotatably fits with the first inner annular member via a rolling element,

The second wheel is

A second inner annular member through which the second rod-shaped member passes;

A second outer annular member that rotatably fits with the second inner annular member via a rolling element,

Each wheel mechanism

The first inner annular member is screwed into an end portion of a bolt as the first rod-shaped member that penetrates through the first inner annular member and the first vertical wall, and thereby the first inner annular member is inserted into the first annular member. A first nut as a fastening member fixed to the vertical wall of 1;

The second inner annular member is screwed into an end portion of a bolt as the second rod-shaped member penetrating the second inner annular member and the second vertical wall, thereby making the second inner annular member And a second nut as a fastening member to be fixed to the vertical wall.

[0014] A ninth aspect of the present invention is the eighth aspect of the present invention,

The first wheel is configured by overlapping a predetermined number of bearings including an inner ring corresponding to the first inner annular member and an outer ring corresponding to the first outer annular member. The predetermined number of bearings including an inner ring corresponding to the second inner annular member and an outer ring corresponding to the second outer annular member are overlapped! .

[0015] A tenth aspect of the present invention is the seventh aspect of the present invention, A plurality of the frames § arranged in parallel to each other and having the plurality of wheel mechanisms attached thereto;

In the adjacent portions of the two frame portions adjacent to each other, the vertical surfaces of the angle irons of the two frame portions are overlapped with each other back to back.

The invention's effect

[0016] According to the first aspect of the present invention, the two wheels included in each wheel mechanism are paired, and the vertical wall is sandwiched between the vertical walls of the frame via a rod-shaped member passing through them. The load of the article is applied in a balanced manner to each of the wheel pairs in contact with the article to be transferred, and these loads are supported by the vertical walls sandwiched between the wheel pairs. Therefore, the load of the article to be transferred is applied almost in parallel to the vertical wall of the frame, and the frame is not easily deformed by the load, so that it can withstand a large load.

[0017] According to the second aspect of the present invention, the vertical wall (of the frame) that supports each wheel pair via the bar-shaped member makes two plate-shaped portions of angle irons as general-purpose parts back to back. And has high rigidity. Therefore, by using a highly rigid member as the rod-like member, it is possible to realize a wheel competitor device that can withstand a large load with a simple configuration at low cost.

[0018] According to the third aspect of the present invention, each wheel can be configured using a bearing as a general-purpose component, and is attached by screwing a nut to a bolt as a rod-shaped member. This makes it possible to realize a wheel compressor device that can withstand a large load with a low cost.

[0019] According to the fourth aspect of the present invention, the wheel pairs in each wheel mechanism are configured by overlapping the same number of bearings of the same number, so that the transfer of articles is stabilized, The load of the article is applied in a more balanced manner to each of the wheel pairs in contact with the article to be transferred, and the frame is not easily deformed by the load of the article. In addition, since the wheel pairs are attached by screwing nuts onto bolts as fixed shafts, the number of bearings constituting each wheel pair can be easily increased or decreased as necessary. [0020] According to the fifth aspect of the present invention, the frame members to which the plurality of wheel mechanisms are attached are arranged in parallel with each other with a predetermined distance therebetween. Can be easily transported.

[0021] According to the sixth aspect of the present invention, two wheels (the first wheel and the second wheel) included in each wheel mechanism form a pair, and each wheel has two frames facing each other. It is attached to one vertical wall of the member via a bar-like member that penetrates each wheel. For this reason, the load of the article to be transferred is applied to each wheel of the wheel pair in a well-balanced manner, and these loads are supported by the vertical walls of the two frame members to which the wheel pair is attached. Therefore, since the deformation of the frame due to the load that the load of the article to be transferred is not applied to only one vertical wall of the two frame members facing each other, it can withstand a large load. The article to be transferred is transferred on a cylindrical member provided between two opposing frame members. That is, the article is transported on a planar conveyance path. For this reason, it is also possible to transfer small articles by this device. Furthermore, since the outer peripheral surface of each wheel is covered with the cylindrical member, the wheel does not fit into a part of the bottom surface of the article to be transferred. In addition, since the load is not directly applied to the wheel, the bottom surface of the article to be transported is not damaged, such as a conveyance trace.

[0022] According to the seventh aspect of the present invention, the vertical wall of the frame member that supports each wheel via the rod-shaped member is arranged so that the two angle steels as the general-purpose parts face each other. And has high rigidity. Therefore, by using a highly rigid member as the rod-like member, it is possible to realize a wheel competitor device that can withstand a large load with a simple configuration at low cost.

[0023] According to the eighth aspect of the present invention, each wheel can be configured using a bearing as a general-purpose component, and is attached by screwing a nut to a bolt as a rod-shaped member. This makes it possible to realize a wheel compressor device that can withstand a large load with a low cost.

[0024] According to the ninth aspect of the present invention, the wheel pairs in each wheel mechanism are configured by overlapping the same number of bearings of the same number, so that the transfer of articles is stable. In addition, the load of the article to be transferred is applied to each wheel in a more balanced manner, and the frame is less likely to be deformed by the load of the article. Further, since each wheel is attached by screwing a nut to a bolt as a fixed shaft, the number of bearings constituting each wheel can be easily increased or decreased as necessary.

[0025] According to the tenth aspect of the present invention, a plurality of frame portions, which are also two opposing frame members, are arranged in parallel to each other. For this reason, a wide article (for example, a pallet on which a plurality of articles are placed) can be easily transferred. In addition, since the vertical surfaces of the angle irons overlap each other adjacent to each other in the adjacent frame portion, the vertical wall has higher rigidity. For this reason, a wheel competitor device capable of withstanding a larger load is realized.

Brief Description of Drawings

FIG. 1 is a perspective view showing a wheel comparer according to a first embodiment of the present invention.

FIG. 2 is a view showing a pallet placed on the wheel competitor device according to the first embodiment.

FIG. 3 is a plan view showing the main part of the wheel competitor device according to the first embodiment.

FIG. 4 is a front view showing a main part of the wheel competitor device according to the first embodiment.

FIG. 5 is a right side view showing the main part of the wheel competitor device according to the first embodiment.

FIG. 6 is a left side view showing a main part of the wheel competitor device according to the first embodiment.

FIG. 7A is a plan view showing a configuration of a main part of a conventional wheel competitor device.

FIG. 7B is a front view showing a configuration of a main part of a conventional wheel competitor device.

FIG. 7C is a side view showing a configuration of a main part of a conventional wheel competitor device.

FIG. 8 is a plan view showing a main part of a wheel competitor device of an example different from the first embodiment.

FIG. 9 is a perspective view showing a wheel competitor device according to a second embodiment of the present invention.

FIG. 10 is a plan view showing a main part of the wheel competitor device according to the second embodiment. FIG. 11 is a front view showing a main part of the wheel competitor device according to the second embodiment.

FIG. 12 is a front view showing a main part of a wheel competitor device according to a modification of the second embodiment.

Explanation of symbols

[0027] 10 ... Frame

10a, 10b, 60a, 60b ... Angle steel

11, 61a, 61b… Bolt (rod-like member)

12a, 12b, 62a, 62b ...

12al, 12a2, 12bl, 12b2--'Bearings

14, 66a, 66b ... Nuts (fastening members)

20, 65a, 65b ... Vertical wall

30, 90 ... wheel mechanism

80 ··· Pipe

121… Inner ring member (inner ring)

122… Outer ring member (outer ring)

100a to 100c, 101

102a to 102d ... Wheel compressor subunit

200a ~ 200e ... Connecting member

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

<1. First Embodiment>

<1.1 Overall configuration>

FIG. 1 is a perspective view showing a wheel conveyor device according to a first embodiment of the present invention.

. This wheel competitor device includes three wheel competitor units 100a, 100b, 100c extending in a direction in which an article placed thereon should be transferred (hereinafter simply referred to as “transfer direction”), and the three wheels. From rigid connecting members 200a to 200d that connect the compressor units 100a, 100b, and 100c so as to be arranged in parallel with each other by a predetermined distance L1. Become. Here, the predetermined distance LI is determined according to the width of the article to be transferred.

[0029] Each wheel competitor unit 100a to 100c is rotatably attached to the frame 10 so as to be aligned in the transport direction at a predetermined interval L2 with the frame 10 having a long rigid member force having an inverted T-shaped cross section. And a large number of wheel pairs 12a and 12b. The wheel conveyor device is placed on a horizontal plane or an inclined plane, on which an article to be transferred is placed. For example, as shown in FIG. 2, a pallet 300 can be placed on the wheel conveyor device, and a plurality of articles (not shown) can be loaded on the pallet 300 and transferred.

[0030] <1. 2 Major components>

Next, the configuration of the main part of the wheel comparer according to the present embodiment will be described in detail with reference to FIGS. 3, FIG. 4, FIG. 5, and FIG. 6 are a plan view, a front view, a right side view, and a left side view, respectively, showing the main part of the wheel competitor device. However, in FIG. 3 and FIG. 4, for the sake of convenience, the distance L1 between adjacent wheel competitor units among the three wheel competitor units 100a to 100c is shown to be short, and the connecting member 200a ~ 200d is omitted.

[0031] As described above, each wheel competitor unit 100a to 100c is attached to the frame 10 which is also a long rigid member having an inverted T-shaped cross section and aligned with the frame 10 in the transfer direction. And a large number of wheel mechanisms 30. The frame 10 consists of two angle steels (angle) (for example, angle steel with a thickness of 5 mm and a cross-section of 40 mm x 40 mm) 10a, 10b, and these two angle steels 10a, 10b By colliding back to back, a long member with an inverted T-shaped cross section is constructed. The two plate-like portions which are abutted back to back among these two angle steels 10a and 10b form a vertical wall (wall surface parallel to the vertical line) 20 extending in the transfer direction. The multiple wheel mechanisms 30 are attached to the vertical wall 20 with a predetermined interval L2 (for example, 40 mm).

Each wheel mechanism 30 includes a pair of the wheels 12a and 12b, and the pair of wheels 12a and 12b are attached to the frame 10 so as to sandwich the vertical wall 20 and to be rotatable. Specifically, each wheel mechanism 30 is attached to the frame 10 as follows. That is, the vertical wall 20 of the frame 10 is provided with a through hole (one for each wheel mechanism) at the predetermined interval L2, and is fixed as a center of rotation of each wheel 12a, 12b. A rigid rod-like member 11 as a fixed axis is passed through. In the present embodiment, a bolt (for example, a MIO X 65 mm hexagon bolt) is used as the rod-like member 11, and one of the wheel pairs 12 a and 12 b is preliminarily used when penetrating the vertical wall 20. The wheel 12b and the corresponding washer 13b are fitted into the bolt 11 in order. When the bolt 11 fitted with the one wheel 12b and the washer 13b passes through the vertical wall 20, the other washer 13a and the wheel 13a are fitted in order, and a nut (for example, a hexagon nut) 14 as a fastening member is inserted. The wheel mechanism 30 is attached to the frame by screwing 11 bolts. The wheels 12a and 12b in this embodiment include an outer annular member and an inner annular member as will be described later. When the wheel mechanism 30 is attached to the frame 10 as described above, a bolt as a fixed shaft. 11 passes through the inner annular member, and when the screw bolt 11 screw nut 14 is screwed as described above, the inner ring member in the wheel pair 12a, 12b is vertically moved through the washer 13a, 13b. It is fastened by bolt heads l ib and nuts 14 so as to sandwich the wall 20 and fixed to the frame 10.

[0033] Each wheel 12a, 12b is rotatable via an inner annular member 121 through which a bolt 11 as a fixed shaft passes as described above and rolling elements as shown in FIGS. 5 and 6 (that is, a bearing). It comprises an outer annular member 122 fitted to the inner annular member 121 (which is rotatable by a mechanism). Here, the pair of wheels 12a and 12b have substantially the same shape 'structural components (or a configuration having a symmetrical shape with respect to the vertical wall 20 when they are attached to the frame 10). In this embodiment, two bearings (for example, a deep groove ball bearing with an outer diameter of 35 mm, part number 6300ZZ) as two parts in the axial direction are formed as parts comprising an inner ring and an outer ring that is rotatably fitted to the inner ring. Each wheel 12a, 12b is formed by overlapping. That is, as shown in FIG. 4, the wheel 12a is constituted by two bearings 12al and 12a2, and the hoisting nose 12b is constituted by two bearings 12bl and 12b2. The inner and outer rings of the bearings 12al and 12a2 correspond to the inner annular member 121 and the outer annular member 122 of the wheel 12a, respectively, and the inner and outer rings of the bearings 12bl and 12b2 correspond to the inner annular member 121 and the outer circle of the wheel 12b, respectively. It corresponds to each of the annular members 122.

[0034] Bolts 11 as fixed shafts that serve as the rotation centers of the wheels 12a and 12b are passed through (flares The through-hole in the vertical wall 20 of the frame 10 is such that the upper end of each wheel 12a, 12b is slightly higher than the upper end of the vertical wall 20 of the frame 10 when the wheel mechanism 30 is attached to the vertical wall 20. Provided in position. For example, if the outer diameter of each wheel 12a, 12b is 35 mm and one side of the cross section of the angle steel 10a, 10b constituting the frame 10 is 40 mm, the through hole in the vertical wall 20 from the installation surface 500 of the wheel compressor device The height HI to the center is about 30 mm (see Fig. 4). In this case, the height from the installation surface 500 to the upper end of the vertical wall 20 of the frame 10 is 40 mm, while the height H2 from the upper end of each wheel 12a, 12b is 47.5 mm. In this way, the upper end of each wheel 12a, 12b is higher than the upper end of the vertical wall 20, so that the article placed on the wheel compressor device does not contact the vertical wall 20 and hits the wheel 12a, 12b. In contact, smooth transfer of the article becomes possible.

[0035] <1. 3 Action and effect>

According to the present embodiment as described above, an article to be transferred abuts on the wheels 12a and 12b of a large number of wheel mechanisms 30 attached to each frame 10, and the load of the article is applied to the wheel 12a, Carrot into 12b. The hoisting mechanisms 12a and 12b included in each hoisting mechanism 30 are paired and attached to the lead straight wall 20 of the frame 10 through a bolt 11 as one fixed shaft that passes through them. The pair of wheels 12a and 12b has a symmetrical shape 'structure with respect to the vertical wall 20. For this reason, the load of the article is applied to each of the wheel pairs 12a and 12b contacting the article to be transferred in a balanced manner (approximately the same amount), and these loads are supported by the vertical wall 20 corresponding to the symmetry plane. . Therefore, because of the symmetry, the load of the article to be transferred is changed almost in parallel with the vertical wall 20 of the frame 10, and the frame 10 is hardly deformed by the load. Also, the vertical wall 20 is formed by bringing the plate-shaped portions of the two angle steels 10a and 10b back to back, and has high rigidity. Therefore, by using a rigid member as a bolt (rod-like member) 11 that penetrates the wheel pair 12a, 12b and the vertical wall 20 and is supported by the vertical wall 20, it can withstand a large load (for example, about 2t or more). Can do. In this way, it is possible to realize a wheel compressor device that can withstand a large load with a simple configuration at low cost by using angle steel or a bearing as a general-purpose component.

[0036] Each of the pair of wheels 12a and 12b has two bearings (wheel 12a If the number of forces formed by the bearings 12al, 12a2 or the bearings 12bl, 12b2) that make up the wheel 12b is the same, each wheel may be made up of one or more bearings. Good. Then, by increasing the number of bearings constituting each wheel, the stability in transferring articles can be improved. According to the above embodiment, the inner annular member 121 of the wheel pair 12a, 12b is framed by screwing the nut 14 to the bolt 11 as a fixed shaft that passes through each bearing constituting the wheel pair 12a, 12b. 10 (the vertical wall 20), the number of bearings constituting each wheel 12a, 12b can be easily increased or decreased as necessary.

[0037] In the conventional configuration in which the wheel is supported by the two plate-shaped members constituting the frame (Figs. 7A to 7C), the manufacturing difficulty is high when the article is transferred along the curved path. However, in the present embodiment, the pair of wheels 12a and 12b is supported by the single vertical wall 20 in the frame 10 via the bolt 11 as a fixed shaft, so the article along the curved path. Compared to the above-described conventional configuration, the manufacturing becomes easier.

[0038] <1.4 Variations>

In the above embodiment, the frame 10 constituting each wheel competitor unit 100a to 100c is a force composed of two angle steels 10a and 10b back to back, but is not limited to this. A long, rigid member (for example, a steel member) may be used. However, it is preferable to use angle steel as a general-purpose part from the viewpoint of realizing a wheel compressor device capable of withstanding a large load at low cost.

[0039] In addition, as a component of the wheel competitor device (the frame 10, the wheels 12a and 12b, the bolt 11 as a fixed shaft, etc.), it has a high rigidity and material such as steel from the viewpoint of resistance against load. U ヽ uses other materials such as other metals (e.g. aluminum) or synthetic resin in consideration of cost and weight depending on the type and application of the goods to be transferred. But ...

[0040] <1.5 Other>

Although the configuration is different from that of the above-described embodiment, even with the configuration shown in FIG. 8, it is possible to realize a wheel competitor device that can withstand a large load at a low cost. Fig 8 These are the top views of this wheel competitor apparatus. The side view is the same as the side view of the conventional wheel competitor device shown in FIG. 7C. This wheel competitor device comprises two angle steels 40a, 40b whose vertical walls 45a, 45b are arranged opposite each other, a wheel 42 arranged between the two angle steels 40a, 40b, and a wheel It is composed of the Bonoleto 41, the washer 43a, 43b, and the nut 44 for supporting 42 between the two angle steels 40a, 40b. Through holes are provided in the vertical walls 45a and 45b of the two angle steels 40a and 40b that support the wheel 42, and a bolt 41 as a fixed shaft that is the center of rotation of the wheel 42 passes through the through hole. Yes. A nut 44 is screwed into the bolt 41 that has passed through the through hole. In addition, bushings 43a and 43b are fitted between the wheel 42 and the vertical walls 45a and 45b.

[0041] As shown in FIG. 8, each wheel 42 disposed between the vertical wall 45a and the vertical wall 45b is also configured with five bearing forces, thereby improving the stability of the transfer of the article. The Further, since the bolt 41 and the nut 44 are used to support the wheel 42, the number of bearings constituting each wheel 42 can be easily adjusted.

[0042] <2. Second Embodiment>

<2.1 Overall configuration>

FIG. 9 is a perspective view showing a wheel competitor device according to a second embodiment of the present invention. This wheel competitor device is composed of a wheel conveyor unit 101 composed of two wheel compressor subunits 102a and 102b extending in the transfer direction of the articles placed thereon, and these two wheel competitor subunits. It comprises a rigid connecting member 200e that connects 102a and 102b so as to be spaced apart from each other by a predetermined distance L6 and arranged parallel to each other. Here, the predetermined distance L6 is determined according to the width of the article to be transferred.

[0043] Each wheel compressor subunit 102a, 102b is aligned with the angle steel 60a, 60b as a frame, which is a long rigid member having a cross-sectional force shape, and is adjusted in the transfer direction at a predetermined interval L7. As shown in the figure, there are Hoiinore 62a and 62b that are rotatably attached to Yamagata Maoka 60a and 60b. Further, a pipe 80 as a cylindrical member covering the outer peripheral surface of the wheels 62a, 62b is provided between the wheel competitor subunits 102a, 102b. The wheel conveyor device is placed on a horizontal or inclined plane, on which an article to be transferred is placed. The For example, a plurality of articles can be loaded on a pallet and transferred.

In the present embodiment, an example is described in which an angle steel, which is a long rigid member having an L-shaped cross section, is applied to a frame. However, the present invention is not limited to this. For example, a long rigid member having an inverted T-shaped cross section can be applied to the frame.

[0045] <2. 2 Major components>

Next, the configuration of the main part of the wheel comparer according to the present embodiment will be described in detail with reference to FIG. 10 and FIG. FIG. 10 is a plan view showing a main part of the wheel competitor device. FIG. 11 is a front view showing a main part of the wheel competitor device. However, in FIGS. 10 and 11, for the sake of convenience, the distance L6 between the wheel competitor subunits is shown to be short, and the connecting member 200e is omitted.

[0046] The wheel competitor unit 101 is disposed between a pair of angle steels 60a, 60b, which are long rigid members having a cross-sectional force shape, and the angle steels 60a, 60b so as to be aligned in the transfer direction. And a large number of wheel mechanisms 90. One surface of the angle steels 60 a and 60 b is arranged on the installation surface 500, and the other surface forms vertical walls 65 a and 65 b perpendicular to the installation surface 500. The following description focuses on the configuration of the angle steel 60a side of the angle steel 60a, 60b that supports the wheel mechanism 90. The same configuration is applied to the angle steel 60b side.

[0047] The wheel mechanism 90 includes a wheel 62a on the angle steel 60a side. The wheel 62a is attached to the angle steel 60a so that its rotating surface and the vertical wall 65a are parallel to each other and to be rotatable. Specifically, the wheel 62a is attached to the angle steel 60a as follows. That is, the vertical wall 65a of the angle steel 60a is provided with through holes (one for each wheel 62a) at the predetermined interval L7, so that the rigidity as a fixed shaft serving as the rotation center of each wheel 62a is provided. The rod-shaped member (shaft) of is penetrated. In the present embodiment, a bolt (for example, a bolt having a diameter of 15 mm) 61a is used as the rod-shaped member, and the washer 63a is fitted into the bolt 61a in advance when penetrating the vertical wall 65a. When the bolt 61a passes through the vertical wall 65a, the washer 64a and the wheel 62a are then fitted in order, and a nut (for example, a hexagonal nut) 66a as a fastening member is screwed to the bolt 61a, whereby the wheel 62a force S angle steel Mounted on 60a. As a result, the rotation surface of the wheel 62a is parallel to the vertical wall 65a via the washer 64a, and the wheel 62a is described later. The inner annular member is fastened by the bolt head 71a and the nut 66a and fixed to the angle steel 60a.

[0048] As in the first embodiment, the wheel 62a is configured by an inner annular member through which the bolt 61a passes and an outer annular member that is rotatably fitted to the inner annular member. For example, the wheel 62a is realized by a bearing as a part including an inner ring and an outer ring that is rotatably fitted to the inner ring. Here, the number of bearings constituting each wheel may be one or two or more as long as the number of bearings constituting each of the wheels 62a and 62b is the same. Increasing the number of bearings constituting each wheel can improve the stability in transferring articles.

[0049] The wheel compare subunits 102a and 102b are arranged so that their vertical wall 65a and 65b forces oppose each other. At this time, in order to improve the stability when the article is transferred, the surface in contact with the installation surface 500 among the surfaces of the angle steels 60a and 60b is arranged to face the inside of the wheel mechanism 90. In addition, the wheel compressor subunit 102a, the outer peripheral surface of the wheel 62a is covered with one end 67 of the inner peripheral surface of the pipe 80, and the outer peripheral surface of the wheel 62b is covered with the other end 68 of the inner peripheral surface of the pipe 80. A pipe 80 is arranged between 102b. As described above, the wheel mechanism 90 is formed between the wheel compare subunits 102a and 102b.

[0050] The through hole through which the bolt 61a serving as the fixed shaft serving as the rotation center of the wheel 62a passes is provided at a position where the upper end of the Neuve 80 is slightly higher than the upper end of the vertical wall 65a of the angle steel 60a. For example, when the outer diameter of the pipe 80 is 35 mm and one side of the cross-section of the angle steel 60a is 40 mm, the height H6 from the installation surface 500 of the wheel competitor device to the center of the through hole in the vertical wall 65a is 30 mm. (See Figure 11). In this case, the height from the installation surface 500 to the upper end of the vertical wall 65a of the angle steel 60a is 40 mm, whereas the height H7 to the upper end of the nozzle 80 is 47.5 mm. In this way, since the upper end of the pipe 80 is higher than the upper end of the vertical wall 65a, the article placed on the wheel competitor device does not contact the vertical wall 65a but abuts on the pipe 80, and Smooth transfer is possible.

[0051] <2.3 Actions and effects>

According to this embodiment as described above, the article to be transferred is an angle steel 60a as a frame. , 60b abuts on the pipes 80 of a large number of wheel mechanisms 90 arranged between 60b. The pipe 80 has a cylindrical shape, and is provided so as to cover the wheel 62a at one end and cover the wheel 62b at the other end. For this reason, the load of the article on the pipe 80 is transferred to the wheels 62a and 62b through the pipe 80. Here, in each wheel mechanism 30, the wheel shape subunits 102 a and 102 b have a symmetrical shape when viewed from the center of the pipe 80. For this reason, the load of the article to be transferred is applied to each of the wheels 62a and 62b in a balanced manner (approximately the same amount), and these loads are supported by the vertical walls 65a and 65b facing each other. Therefore, due to this symmetry, the deformation force S of the angle steels 60a and 60b due to the load, which is not limited to the load of the article to be transferred only on one of the vertical walls 65a and 65b, is less likely to occur. Therefore, a large load (for example, 2t) can be obtained by using a rigid member as the bolt (rod-like member) 61a, 61b that passes through the wheels 62a, 62b and the vertical walls 65a, 65b and is supported by the vertical walls 65a, 65b. It can withstand more than about). In this way, it is possible to realize a wheel compressor device that can withstand a large load with a simple configuration at low cost by using angle steel or a bearing as a general-purpose part. Further, according to the present embodiment, the article (or the pallet on which the article is loaded) is transferred on the pipe 90. That is, the article is transported on the planar conveyance path. For this reason, it is possible to transfer even a small article by this apparatus. Further, since the wheels 62a and 62b are covered with the pipe 80, the wheels 62a and 62b do not fit into the holes provided on the back surface of the pallet. Further, since the load is not directly applied to the wheels 62a and 62b, for example, when the cardboard box is transported, the bottom surface of the cardboard box is not damaged.

<2.4 Variations>

In the above-described embodiment, the wheel conveyor device is realized by one wheel compare unit 101 including a pair of wheel compare subunits 102a and 102b, but the present invention is not limited to this. For example, as shown in FIG. 12, a wheel conveyor unit 101a composed of wheel compara- tor units 102a and 102b and a wheel compressor unit 101b composed of wheel com- poner subunits 102c and 102d, that is, two wheel compressors The unit realizes a wheel competitor device It can also be configured. In this case, as in the first embodiment, the long plate-shaped portions of the angle irons are abutted back to back in the adjacent portions of the wheel comparer units adjacent to each other. What is necessary is just to grind so that the elongate member may be comprised.

According to this modified example, since the wheel competitor device is realized by the plurality of wheel competitor units, a larger article can be conveyed. In addition, the vertical wall is formed by making the angled steel plate-like portions back to back at the portion where the adjacent wheel compressor subunits are connected to each other, and thus has high rigidity. For this reason, a wheel competitor device capable of withstanding a larger load is realized.

Claims

The scope of the claims

[1] A wheel competitor device for transporting an article to be placed in a predetermined direction, wherein the frame member has a reverse τ-shaped cross section having a vertical wall extending in the predetermined direction, and a predetermined interval between the frame members. With multiple wheel mechanisms spaced apart,

Each wheel mechanism

A rod-shaped member penetrating the vertical wall;

Attached so as to be rotatable around the rod-like member and sandwich the vertical wall.

A wheel competitor device comprising a pair of wheels.

[2] The frame member consists of two angle steel forces,

2. The wheel according to claim 1, wherein the two angle steels are arranged such that long plate-like portions overlap each other back to back, and the plate-like portions form the vertical wall. Conveyor device.

[3] The rod-shaped member is a bolt,

Each wheel

An inner annular member through which the rod-shaped member passes,

Each wheel mechanism is screwed into an inner annular member of the pair of wheels sandwiching the vertical wall and an end of a bolt as the rod-shaped member penetrated through the vertical wall. The wheel compressor device according to claim 1 or 2, further comprising a nut as a fastening member for fixing an inner annular member of the wheel to the vertical wall.

[4] One of the pair of wheels in each wheel mechanism is configured by stacking a predetermined number of bearings including an inner ring corresponding to the inner annular member and an outer ring corresponding to the outer annular member, 4. The wheel compressor device according to claim 3, wherein the other is configured by overlapping a predetermined number of bearings of the same type as the bearing.

5. The plurality of frame members to which the plurality of wheel mechanisms are attached, wherein the plurality of frame members are arranged in parallel with each other with a predetermined distance therebetween. Or the wheel competitor device according to 2.

[6] A wheel competitor device for transferring an article to be placed in a predetermined direction, and having a vertical wall extending in the predetermined direction and two frame member forces facing each other,

[7] The two frame members are angle steel having a long plate-shaped portion,

The horizontal surface of each angle iron is arranged to face the inside of the frame part,

The vertical surfaces of the angle irons face each other, and the vertical surface of one angle steel of the two frame members forms the first vertical wall, and the other of the two frame members. The wheel combiner device according to claim 6, wherein the vertical surfaces of the angle irons are arranged so as to form the second vertical wall.

[8] The first and second rod-shaped members are bolts,

The first wheel is

A first inner annular member through which the first rod-shaped member passes;

A first outer annular member that rotatably fits with the first inner annular member via a rolling element, The second wheel is

Each wheel mechanism

The second inner annular member is screwed into an end portion of a bolt as the second rod-shaped member penetrating the second inner annular member and the second vertical wall, thereby making the second inner annular member The wheel combiner according to claim 6 or 7, further comprising a second nut as a fastening member that is fixed to the vertical wall.

[9] The first wheel is configured by stacking a predetermined number of bearings including an inner ring corresponding to the first inner annular member and an outer ring corresponding to the first outer annular member. The wheel includes a predetermined number of bearings including an inner ring corresponding to the second inner annular member and an outer ring corresponding to the second outer annular member. The wheel competitor apparatus according to claim 8.

[10] A plurality of the frames § arranged in parallel to each other and having the plurality of wheel mechanisms attached thereto,

8. The wheel combiner device according to claim 7, wherein the vertical surfaces of the angle steels of the two frame portions are overlapped with each other at the adjacent portions of the two frame portions adjacent to each other.