GB2556381A - Carrying Roller and carrying unit - Google Patents

Carrying Roller and carrying unit Download PDF

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Publication number
GB2556381A
GB2556381A GB1714231.6A GB201714231A GB2556381A GB 2556381 A GB2556381 A GB 2556381A GB 201714231 A GB201714231 A GB 201714231A GB 2556381 A GB2556381 A GB 2556381A
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GB
United Kingdom
Prior art keywords
rotating member
main body
roller
axis
base member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1714231.6A
Other versions
GB201714231D0 (en
Inventor
Iguchi Isami
Iguchi Aki
Suga Masaru
Kotaki Takashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iguchi Kiko Co Ltd
Original Assignee
Iguchi Kiko Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iguchi Kiko Co Ltd filed Critical Iguchi Kiko Co Ltd
Publication of GB201714231D0 publication Critical patent/GB201714231D0/en
Publication of GB2556381A publication Critical patent/GB2556381A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/025—Adaptations of individual rollers and supports therefor having spherical roller elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/09—Arrangements of bearing or sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2811/00—Indexing codes relating to common features for more than one conveyor kind or type
    • B65G2811/06—Devices controlling the relative position of articles
    • B65G2811/0647—Changing the direction of movement of articles or bulk material
    • B65G2811/0657—Deflectors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A carrying roller comprising base member 20; a rotating member 30 housed in the base member and rotatable around a first axis (L1, fig. 2); and a roller main body 40 disposed in a roller disposition portion 38, the disposition portion being a through-hole of the rotating member, wherein the roller main body is rotatable around a second axis intersecting a virtual axis eccentric the first, and the outer circumferential surface 41 of the roller main body protrudes from the base and rotating members. The rotating member may be housed in a housing portion of the base member and an end portion of the rotating member may overlap an end portion of the housing portion. The rotating member may be supported by the base member via a thrust bearing rotatable around the first axis. A detachable elastic piece 37 on the outer circumference of the rotating member may lock the rotating member to the base member. An end side of the rotating member and base member may be inclined to a second side of the base member from the roller main body side (31a, 20c, fig. 2). A plurality of carrying rollers may comprise a carrying unit (50, fig 5).

Description

(71) Applicant(s):
Iguchi Kiko Co., Ltd
1-22-9 Minamiohizumi, Nerimaku, Tokyo 178-0064, Tokyo, Japan (72) Inventor(s):
Isami Iguchi Aki Iguchi Masaru Suga Takashi Kotaki (74) Agent and/or Address for Service:
Venner Shipley LLP
Byron House, Cambridge Business Park,
Cowley Road, Cambridge, CB4 0WZ, United Kingdom (54) Title of the Invention: Carrying Roller and carrying unit Abstract Title: Carrying roller and carrying unit (57) A carrying roller comprising base member 20; a rotating member 30 housed in the base member and rotatable around a first axis (L1, fig. 2); and a roller main body 40 disposed in a roller disposition portion 38, the disposition portion being a through-hole of the rotating member, wherein the roller main body is rotatable around a second axis intersecting a virtual axis eccentric the first, and the outer circumferential surface 41 of the roller main body protrudes from the base and rotating members. The rotating member may be housed in a housing portion of the base member and an end portion of the rotating member may overlap an end portion of the housing portion. The rotating member may be supported by the base member via a thrust bearing rotatable around the first axis. A detachable elastic piece 37 on the outer circumference of the rotating member may lock the rotating member to the base member. An end side of the rotating member and base member may be inclined to a second side of the base member from the roller main body side (31a, 20c, fig. 2). A plurality of carrying rollers may comprise a carrying unit (50, fig 5).
(56) Documents Cited:
WO 2000/006474 A TW 000381992 B
US 6340085 A US 5097565 A
US 4913277 A US 4589542 A (58) Field of Search:
INT CL B65G
Other: EPODOC, WPI, PATENT FULLTEXT
Figure GB2556381A_D0001
—37
Figure GB2556381A_D0002
Figure GB2556381A_D0003
Figure GB2556381A_D0004
Figure GB2556381A_D0005
Figure GB2556381A_D0006
4/5
Figure GB2556381A_D0007
Figure GB2556381A_D0008
CARRYING ROLLER AND CARRYING UNIT [Field of the Invention] [0001]
The present invention relates to a carrying roller and a carrying unit.
[Description of Related Art] [0002]
Conventionally, many carrying rollers having a freely rotatable roller main body are used in a carrying unit such as a roller conveyor.
For example, Patent Document 1 discloses a free roller used for a carrying operation. A large number of carrying rollers are used for the free roller described in
Patent Document 1. The large number of carrying rollers include a rotary support table rotatably supported on a base to be freely rotatable around a vertical axis, and a roller main body (cylindrical roller) is rotatably supported between a pair of brackets protruding from the rotary support table.
[Prior Art Document] [Patent Document] [0003] [Patent Document 1] Japanese Unexamined Patent Application, First
Publication No. 2012-96892 [Summary of Invention] [Problems to be Solved by the Invention] [0004]
However, the conventional carrying roller has a configuration in which, when dust enters between the rotary support table and the roller main body, dust is deposited on the surface of the rotary support table and is not easily discharged. Further, when dust is deposited between the rotary support table and the roller main body, there is a risk of inhibition of rotation of the roller main body.
[0005]
Thus, the present invention has been made in view of the above circumstances, and an object thereof is to provide a carrying roller and a carrying unit capable of preventing deposition of dust.
[Means for Solving the Problem] [0006]
Tn order to solve the above problem, the present invention employs the following aspects.
(1) According to an aspect of the present invention, there is provided a carrying roller which includes a base member; a rotating member housed in the base member and supported with respect to the base member to be freely rotatable around a first axis; and a roller main body which is disposed in a roller disposition portion provided on the rotating 15 member, is supported by the rotating member, and is freely rotatable around a second axis intersecting with a virtual axis eccentric to the first axis. A part of an outer circumferential surface of the roller main body protrudes from the base member and the rotating member, and the roller disposition portion is a through-hole which penetrates the rotating member in a direction along the first axis.
[0007]
According to the above aspect of the present invention, since the roller main body is disposed in the roller disposition portion of the rotating member and the rotating member is housed in the base member, the carrying roller can be configured in a compact and integrated structure while securing the strength. Further, since the roller disposition portion is the through-hole that penetrates the rotating member in the direction along the first axis, dust entering the gap between the roller main body and the rotating member passes through the through-hole and is easily discharged to the outside. Therefore, it is possible to provide the carrying roller capable of preventing the deposition of dust.
[0008] (2) In the above aspect (1), a configuration in which the rotating member is housed in a housing portion of the base member, and a support portion of the roller main body is disposed in the housing portion may be employed.
[0009]
According to the above aspect (2), since the support portion of the roller main body is disposed in the housing portion of the base member, it is possible to prevent the load applied to the rotating member from the roller main body from greatly eccentrically acting on the base member. Therefore, the base member can stably support the roller main body.
[0010] (3) In the above aspect (2), an end portion of the rotating member may be provided to overlap an end portion of the housing portion of the base member when viewed from an axial direction of the first axis.
[0011]
According to the above aspect (3), the end portion of the housing portion of the base member and the end portion of the rotating member can have a so-called labyrinth structure. As a result, since an entrance passage of dust formed between the base member and the rotating member can be formed in a crank shape, dust can be prevented from entering between the base member and the rotating member.
[0012] (4) In the aspect of any one of (1) to (3) above, the rotating member may be supported by the base member via a thrust bearing rotatable around the first axis.
[0013]
According to the above aspect (4), since the rotating member is supported by the base member via the thrust bearing rotatable around the first axis, it is possible to support 5 a large load while preventing dust from entering the thrust bearing.
[0014] (5) In the above aspect (4), the roller main body may be disposed inside the thrust bearing.
[0015]
According to the above aspect (5), if the roller main body disposed eccentrically with respect to the first axis is disposed inside the thrust bearing, loads in various directions applied to the roller main body at the time of use can be stably supported by the thrust bearing. As a result, the rotationality of the rotating member can be satisfactorily kept in a state in which the load is applied to the carrying roller at the time of use.
[0016] (6) In the aspect of any one of (1) to (5) above, a configuration in which an elastic piece attachable and detachable by elasticity is provided on the outer circumference of the rotating member, and the rotating member is locked to the base member by the elastic piece may be employed.
[0017]
According to the aspect (6), since the rotating member is locked to the base member by the elastic piece attachable and detachable by elasticity, the rotating member can be easily attached and detached.
[0018] (7) In the aspect of any one of (1) to (6) above, the outer circumferential surface of the roller main body may have a top outer circumferential surface centered on the second axis.
[0019]
According to the above aspect (7), since the outer circumferential surface of the roller main body has the top outer circumferential surface centered on the second axis, it is possible to widely secure a contact area between the object to be carried that moves while into contact with the roller main body and the roller main body. Therefore, it is possible to prevent damage such as scratches or dents from occurring in the object to be carried.
[0020] (8) In the aspect (7), the outer circumferential surface of the roller main body may have inclined outer circumferential surfaces on both sides of the top outer circumferential surface, the inclined outer circumferential surfaces being inclined from 15 the top outer circumferential surface toward the second axis side.
[0021]
According to the aspect (8), when the object to be carried relatively moves with respect to the roller main body to come into contact with the top outer circumferential surface, the object to be carried is guided by the inclined outer circumferential surface.
Therefore, it is possible to prevent the object to be carried from being caught on the end portion of the roller main body and to easily rotate the roller main body.
[0022] (9) In the aspect of any one of the above aspects (1) to (8), a first end side of the rotating member and the base member may have an inclined end surface inclined to a second end side of the base member from the roller main body side toward the outside in the radial direction.
[0023]
According to the aspect (9), since the object to be carried is guided to the outer circumferential surface of the roller main body by the inclined end surfaces by coming 5 into contact with the first end side of the rotating member or the base member when moving, it is possible to prevent the object to be carried from being caught on the circumferential edge of the rotating member or the base member.
[0024] (10) In the aspect of any one of the aspects (1) to (6), the outer circumferential surface of the roller main body may be a curved surface having a predetermined radius of curvature.
[0025]
According to the above aspect (10), since the outer circumferential surface of the roller main body is a curved surface, dust entering the gap between the roller main body 15 and the rotating member moves smoothly without being caught on the outer circumferential surface of the roller main body, and is easily discharged to the outside through the through-hole. Therefore, it is possible to provide the carrying roller capable of preventing the deposition of dust.
[0026] (11) A carrying unit according to one aspect of the present invention includes a plurality of the carrying rollers according to any one of the above (1) to (9), wherein a carrying surface is formed by the outer circumferential surface of the plurality of roller main bodies.
[0027]
According to the above aspect (11), since a plurality of carrying rollers as described above are provided and the carrying surface is formed by the outer circumferential surfaces of the plurality of roller main bodies, it is possible to convey the object to be carried, by preventing damage such as scratches or dents from occurring in the object to be carried, while dispersing the load of the object to be carried. Further, since the carrying roller can secure sufficient strength against the load of the object to be carried from the side, it is possible to prevent breakage or the like of the roller main body and the rotating member. Further, since each carrying roller can easily discharge the dust entering between the roller main body and the rotating member to the outside from the through-hole, it is possible to prevent defects such as hindrance of the rotation of the roller main body due to deposition of dust inside the rotating member. Therefore, it is possible to provide the carrying unit having excellent durability.
[Effects of the Invention] [0028]
According to each of the above aspects of the present invention, since the roller 15 main body is disposed in the roller disposition portion of the rotating member and the rotating member is housed in the base member, the carrying roller can be configured in a compact and integrated structure while securing strength. Further, since the roller disposition portion is the through-hole that penetrates the rotating member in the direction along the first axis, dust entering the gap between the roller main body and the rotating member is easily discharged to the outside through the through-hole. Therefore, it is possible to provide a carrying roller capable of preventing deposition of dust.
[Brief Description of the Drawings] [0029]
Fig. 1 is a perspective view of a carrying roller according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view including a second axis of the carrying roller according to the same embodiment.
Fig. 3 is a cross-sectional view orthogonal to the second axis of the carrying roller according to the same embodiment.
Fig. 4 is an exploded perspective view of the carrying roller according to the same embodiment.
Fig. 5 is a perspective view of a carrying unit according to the same embodiment.
Fig. 6 is a cross-sectional view including a second axis of a carrying roller according to a modified example of the embodiment.
Fig. 7 is a cross-sectional view orthogonal to the second axis of the carrying roller according to the modified example of the embodiment.
[Embodiments of the Invention] [0030]
Hereinafter, a carrying roller and a carrying unit according to an embodiment of the present invention will be described . Hereinafter, after an example of the carrying roller is described, an example of the carrying unit using the carrying roller will be described.
[0031] (Carrying roller)
Fig. 1 is a perspective view of a carrying roller according to the embodiment of the present invention, Fig. 2 is a cross-sectional view including the second axis of the carrying roller according to the embodiment, Fig. 3 is a cross-sectional view orthogonal to the second axis of the carrying roller according to the embodiment, and Fig. 4 is an exploded perspective view of the carrying roller according to the embodiment.
As shown in Figs. 1 to 4, a carrying roller 10 includes a base member 20, a rotating member 30 rotatably housed in the base member 20, and a roller main body 40 rotatably housed in the rotating member 30.
[0032]
The base member 20 has a substantially cylindrical shape, and includes a housing portion 21 that penetrates in a direction along the first axis LI of the rotating member 30.
The housing portion 21 is a part that houses and rotatably supports the rotating member 30. The cross-sectional shape orthogonal to the first axis LI is formed in a circular shape.
A large-diameter hole portion 22 is provided on a first end side of the housing portion 21, and a recessed portion 23 is provided on a second end side thereof. Further, a flange portion 24 is provided between the large-diameter hole portion 22 and the recessed portion 23.
[0033]
The flange portion 24 constitutes a support portion 25 that rotatably supports the rotating member 30 on the side of the large-diameter hole portion 22. The support portion 25 of the present embodiment has a thrust bearing 26 disposed around the first axis LI between the flange portion 24 and the rotating member 30.
At a plurality of positions on the outer circumferential side of the base member
20, attaching holes 27 penetrating in the direction of the first axis LI are provided.
[0034]
The rotating member 30 is a member that is housed in the housing portion 21 of the base member 20 and is rotatable around the first axis LI, and includes a large-diameter portion 31 on a first end side and a small-diameter portion 32 on a second end side. The cross-sectional shapes of the large-diameter portion 31 and the small-diameter portion 32 orthogonal to the first axis LI are formed in a circular shape centered on the first axis LI.
[0035]
The large-diameter portion 31 of the rotating member 30 is formed that can be housed in the large-diameter hole portion 22 of the base member 20. The side circumferential surface of the large-diameter portion 31 is opposed to the inner wall surface of the large-diameter hole portion 22 of the base member 20 in close proximity.
An inner end portion 31 b of the large-diameter portion 31 of the rotating member 30 is a part that is supported by the support portion 25 of the base member 20.
A thrust bearing 26 is disposed between the inner end portion 31b of the large-diameter portion 31 of the rotating member 30 and the flange portion 24 of the base member 20.
Thus, the rotating member 30 is rotatably supported with respect to the base member 20.
[0036]
In the large-diameter portion 31 of the rotating member 30 of the present embodiment, an outer end portion 31a disposed outside an end portion 20a on the distal end side of the base member 20 is provided. The outer end portion 31 a of the rotating member 30 is larger than the large-diameter hole portion 22 of the base member 20.
Accordingly, the outer end portion 3 la of the large-diameter portion 31 of the rotating member 30 is provided to overlap the end portion 20a of the housing portion 21 of the base member 20 when viewed from the axial direction of the first axis LI. The outer end portion 31a of the large-diameter portion 31 of the rotating member 30 and the end portion 20a of the base member 20 have a so-called labyrinth structure.
[0037]
In the large-diameter portion 31, a support portion 33 of the roller main body 40 is provided. In the present embodiment, the support portion 33 includes a housing hole provided in the large-diameter portion 31 so that one end thereof is closed and the other end thereof is opened, a shaft body 35 which is housed in the housing hole 34 to support the roller main body 40, and a spherical body 36 housed at the other end in a 5 state in which the shaft body 35 is housed up to one end of the housing hole 34. The housing hole 34 is provided to intersect with the roller disposition portion 38 in which a roller main body 40 to be described later is disposed. The support portion 33 is disposed in the housing portion 21 of the base member 20.
As will be described later, the roller main body 40 is disposed to be freely rotatable around a second axis L2 which intersects with a virtual axis C eccentric with respect to the first axis Ll. The housing hole 34 and the shaft body 35 of the support portion 33 are provided along the second axis L2.
[0038]
The small-diameter portion 32 is formed in an outer shape that can be housed in 15 the inner circumference of the flange portion 24 of the base member 20. The small-diameter portion 32 is formed in a substantially constant cylindrical shape along the first axis Ll. The small-diameter portion 32 is configured so that the distal end of the small-diameter portion 32 is disposed inside the recessed portion 23 beyond the flange portion 24 in a state in which the large-diameter portion 31 is supported by the flange portion 24 via the thrust bearing 26.
[0039]
An elastic piece 37 such as a C ring attachable and detachable by elasticity is mounted on the outer circumference of the small-diameter portion 32 of the rotating member 30 housed in the recessed portion 23 ofthe housing portion 21, in a state in which it is fitted into the groove. As a result, the rotating member 30 is locked to the flange portion 24 of the base member 20 in the direction along the first axis Ll and is connected to the base member 20.
[0040]
A roller disposition portion 38 in which the roller main body 40 is disposed is 5 formed inside the rotating member 30. The roller disposition portion 38 is a through-hole 38a that penetrates the rotating member 30 in a direction along the first axis
Ll. The through-hole 38a is formed in a constant cross-sectional shape over the entire length of the rotating member 30 between the end surface of the large-diameter portion and the end surface of the small-diameter portion 32.
The through-hole 38a is formed in such a size and a shape that the roller main body 40 housed in the rotating member 30 can rotate inside the through-hole 38a. The through-hole 38a is provided eccentrically with respect to the first axis Ll to correspond to the roller main body 40.
[0041]
Flat surfaces 20b and 31c orthogonal to the first axis Ll, and inclined end surfaces 20c and 3 Id inclined to the other end toward the outside in the radial direction are provided at the end portion 20a on the distal end side of the base member 20 and the outer end portion 31 a of the rotating member 30, respectively.
[0042]
The roller main body 40 is rotatably supported by a shaft body 35 of a support portion 33 provided on the rotating member 30. The roller main body 40 is freely rotatable around the second axis L2 orthogonal to a virtual axis C eccentric with respect to the first axis Ll.
Further, the roller main body 40 is housed in the through-hole 38a in a direction along the first axis Ll provided in the rotating member 30. A part of the outer circumferential surface 41 of the roller main body 40 protrudes outward from the base member 20 and the rotating member 30. The roller main body 40 is disposed inside the thrust bearing 26 in a state in which it is disposed eccentrically with respect to the first axis LI.
The outer circumferential surface 41 of the roller main body 40 has a top outer circumferential surface 41a centered on the second axis L2 in the cross section along the second axis L2, and inclined outer circumferential surfaces 41b inclined from the top outer circumferential surface 41a toward the second axis L2 side on both sides of the top outer circumferential surface 41a.
[0043] (Carrying unit)
Fig. 5 is a perspective view of a carrying unit according to an embodiment of the present invention.
The carrying unit 50 of this embodiment is a member for carrying an object W 15 to be carried (shown by a two-dot chain line in Fig. 5) such as a package body, a container, or a tray which contains an industrial product. In Fig. 5, each carrying roller is disposed at a bent portion to connect between a plurality of roller conveyors 51a and 51b disposed in mutually different directions. Reference numerals of constituent components of the carrying roller 10 in the following description refer to Figs. 1 to 4.
[0044]
The carrying unit 50 of the present embodiment is configured by mounting a plurality of carrying rollers 10 as described above vertically and horizontally on a base
52.
In each of the carrying rollers 10, the base member 20 is disposed at a predetermined position on the base 52 in the state in which the roller main body 40 protruding from the base member 20 and the rotating member 30 faces upward. Each of the carrying rollers 10 is fixed to the base 52 by bolts or the like, using the attaching holes 27. Through-holes (not shown) penetrating the base 52 are provided at positions corresponding to the housing portions 21 provided to penetrate the base members 20 of each carrying roller 10.
On the carrying unit 50, a carrying surface on which the object W to be carried is carried is formed, by the outer circumferential surface 41 of the roller main body 40 set on the base 52.
[0045]
In the carrying unit 50, the object W to be carried is first carried from one roller conveyor 5 la on the upstream side to the carrying surface of the carrying unit 50. The bottom surface of the object W to be carried comes into contact with each carrying roller
10. In each of the carrying rollers 10, the second axis L2 of the roller main body 40 is disposed in a direction intersecting with the virtual axis C eccentric with respect to the first axis LI. Therefore, as the object W to be carried comes into contact with the roller main body 40, the rotating member 30 rotates so that the rotating direction of the roller main body 40 follows the movement direction of the object W to be carried.
[0046]
After the object W to be carried is placed on the carrying surface of the carrying unit 50, for example, by applying force in the direction along the other roller conveyor lb to the object W to be carried by a worker, the object W to be carried moves toward the other roller conveyor 51b. The rotating member 30 rotates when a force in the direction along the other roller conveyor 51b acts, and the rotating direction of the roller main body 40 faces the movement direction of the object W to be carried. Further, the object W to be carried is placed on the other roller conveyor 51b and carried to the downstream side.
[0047]
According to the carrying roller of this embodiment, since the roller main body is disposed in the roller disposition portion 38 of the rotating member 30 and the 5 rotating member 30 is housed in the base member 20, the carrying roller 10 can be configured in a compact and integrated structure while securing the strength. Further, since the roller disposition portion 38 is the through-hole 38a that penetrates the rotating member 30 in the direction along the first axis LI, dust entering the gap between the roller main body 40 and the rotating member 30 passes through the through-hole 38a and is easily discharged to the outside. Therefore, it is possible to provide the carrying roller 10 capable of preventing the deposition of dust.
[0048]
Since the support portion 33 of the roller main body 40 is disposed in the housing portion 21 of the base member 20, it is possible to prevent the load applied to the 15 rotating member 30 from the roller main body 40 from greatly eccentrically acting on the base member 20. Therefore, the base member 20 can stably support the roller main body 40.
[0049]
Further, according to the present embodiment, the end portion 20a of the housing portion 21 of the base member 20 and the outer end portion 3 la of the rotating member 30 can have a so-called labyrinth structure. As a result, since the entrance passage of dust formed between the base member 20 and the rotating member 30 can be formed in a crank shape, dust can be prevented from entering between the base member and the rotating member 30.
[0050]
Further, since the rotating member 30 is supported by the base member 20 via the thrust bearing 26 rotatable around the first axis LI, it is possible to support a large load while preventing dust from entering the thrust bearing 26.
[0051]
Further, if the roller main body 40 disposed eccentrically with respect to the first axis LI is disposed inside the thrust bearing 26, loads in various directions applied to the roller main body 40 at the time of use can be stably supported by the thrust bearing 26.
As a result, the rotationality of the rotating member 30 can be satisfactorily kept in a state in which the load is applied to the carrying roller 10 at the time of use.
[0052]
In addition, since the rotating member 30 is locked to the base member 20 by the elastic piece 37 attachable and detachable by elasticity, the rotating member 30 can be easily attached and detached.
[0053]
Further, since the outer circumferential surface 41 of the roller main body 40 has the top outer circumferential surface 41a centered on the second axis L2, it is possible to widely secure a contact area between the object W to be carried that moves while in contact with the roller main body 40 and the roller main body 40. Therefore, it is possible to prevent damage such as scratches or dents from occurring in the object W to be carried.
[0054]
Further, when the object W to be carried relatively moves with respect to the roller main body 40 to come into contact with the top outer circumferential surface 41a, the object W to be carried is guided by the inclined outer circumferential surface 41b.
Therefore, it is possible to prevent the object W to be carried from being caught on the end portion of the roller main body 40 and to easily rotate the roller main body 40.
[0055]
Further, since the object W to be carried is guided to the outer circumferential surface of the roller main body 40 by the inclined end surfaces 20c and 3 Id by coming 5 into contact with the first end side of the rotating member 30 or the base member 20 when moving, it is possible to prevent the object W to be carried from being caught on the circumferential edge of the rotating member 30 or the base member 20.
[0056]
Further, according to the carrying unit 50 of the present embodiment, since a plurality of carrying rollers 10 as described above are provided and the carrying surface is formed by the outer circumferential surfaces 41 of the plurality of roller main bodies
40, it is possible to convey the object W to be carried, by preventing damage such as scratches or dents from occurring in the object W to be carried, while dispersing the load of the object W to be carried. Further, since the carrying roller 10 can secure sufficient 15 strength against the load of the object W to be carried from the side, it is possible to prevent breakage or the like of the roller main body 40 and the rotating member 30.
Further, since each carrying roller 10 can easily discharge the dust entering between the roller main body 40 and the rotating member 30 to the outside from the through-hole 38a, it is possible to prevent defects such as hindrance of the rotation of the roller main body
40 due to deposition of dust inside the rotating member 30. Therefore, it is possible to provide the carrying unit 50 having excellent durability.
[0057] (Carrying roller according to modified example of an embodiment of the present invention)
Fig. 6 is a cross-sectional view including a second axis of a carrying roller according to a modified example of an embodiment of the present invention, and Fig. 7 is a cross-sectional view orthogonal to the second axis of the carrying roller according to the modified example of the present embodiment. Hereinafter, a carrying roller according to a modified example of the present embodiment will be described.
In the carrying roller 10 according to the embodiment described above, the outer circumferential surface 41 of the roller main body 40 has a top outer circumferential surface 41a centered on the second axis L2 in the cross section along the second axis L2, and inclined outer circumferential surfaces 41b inclined from the top outer circumferential surface 41 a toward the second axis L2 side on both sides of the top outer circumferential surface 41a (see Fig. 2).
In contrast, as in the carrying roller 10 according to the modified example of the embodiment shown in Figs. 6 and 7, the outer circumferential surface 41 of the roller main body 40 may be a curved surface.
[0058]
As shown in Figs. 6 and 7, the carrying roller 10 according to the modified example of the present embodiment has a rotating member 30. A roller disposition portion 38 in which the roller main body 40 is disposed is formed inside the rotating member 30. The roller disposition portion 38 is a through-hole 38a that penetrates the rotating member 30 in a direction along the first axis LI.
The through-hole 38a is formed in such a size and a shape that the roller main body 40 housed in the rotating member 30 can rotate inside the through-hole 38a. The through-hole 38a is provided eccentrically with respect to the first axis LI to correspond to the roller main body 40.
[0059]
The roller main body 40 is rotatably supported by a shaft body 35 of a support portion 33 provided on the rotating member 30. The roller main body 40 is freely rotatable around a second axis L2 orthogonal to a virtual axis C eccentric with respect to the first axis LI.
Further, the roller main body 40 is housed in the through-hole 38a in a direction 5 along the first axis LI provided in the rotating member 30.
The outer circumferential surface 41 of the roller main body 40 is a curved surface having a predetermined radius of curvature centered on the intersection of the second axis L2 and the virtual axis C. In this embodiment, the radius of curvature of the outer circumferential surface 41 of the roller main body 40 is constant. A part of the outer circumferential surface 41 of the roller main body 40 protrudes outward from the base member 20 and the rotating member 30. The radius of curvature of the outer circumferential surface 41 of the roller main body 40 may not be constant.
[0060]
According to the modified example of the present embodiment, since the outer 15 circumferential surface 41 of the roller main body 40 is a curved surface, dust entering the gap between the roller main body 40 and the rotating member 30 moves smoothly without being caught on the outer circumferential surface 41 of the roller main body 40, and is easily discharged to the outside through the through-hole 38a. Therefore, it is possible to provide the carrying roller 10 capable of preventing the deposition of dust.
[0061]
It should be noted that the present invention is not limited to the embodiments described above with reference to the drawings, and various modified examples are conceivable within the technical scope thereof.
For example, in the above embodiment, the plurality of carrying rollers 10 are attached to the base 52 in a state in which the end portion 20b of the proximal end side of the base member 20 is in contact with the surface of the base 52. However, a recessed portion or a penetration opening may be provided at a position corresponding to each carrying roller 10 on the surface of the base 52, and the proximal end side of the base member 20 may be attached by being buried in the penetration opening of the base 52.
In that case, the amount of protrusion of the carrying roller 10 from the base 52 can be appropriately set, and by reducing the amount of protrusion, it is possible to secure strength when receiving an impact load or the like from the side at the time of use.
Further, in the above embodiment, the attaching holes 27 penetrating in the axial direction are provided at a plurality of positions on the outer circumferential side of the base member 20, but an attaching flange portion protruding from the outer circumferential side in the radial direction may be provided, and the carrying roller 10 may be fixed to the base 52 by the attaching flange portion.
While preferred embodiments of the invention have been described and shown above, it should be understood that these are exemplary of the invention and are not to be 15 considered as limiting. Additions, omissions, substitutions, and other modifications can be made without departing from the spirit or scope of the present invention.
Accordingly, the invention is not to be considered as being limited by the foregoing description, and is only limited by the scope of the appended claims.
[Brief Description of the Reference Symbols] [0062]
10: CARRYING ROLLER
20: BASE MEMBER
20a: END PORTION
20c: INCLINED END SURFACE
21: HOUSING PORTION
25: SUPPORT PORTION
26: THRUST BEARING
30: ROTATING MEMBER
31a: OUTER END PORTION (END PORTION)
31 d: INCLINED END SURFACE
33: SUPPORT PORTION
37: ELASTIC PIECE
38: ROLLER DISPOSITION PORTION
38a THROUGH-HOLE
40: ROLLER MAIN BODY
41: OUTER CIRCUMFERENTIAL SURFACE
41a: TOP OUTER CIRCUMFERENTIAL SURFACE
41b: INCLINED OUTER CIRCUMFERENTIAL SURFACE
50: CARRYING UNIT
C: VIRTUAL AXIS
LI: FIRST AXIS
L2: SECOND AXIS

Claims (11)

What is claimed is:
1. A carrying roller comprising:
a base member;
a rotating member housed in the base member and supported with respect to the base member to be freely rotatable around a first axis; and a roller main body which is disposed in a roller disposition portion provided on the rotating member, is supported by the rotating member, and is freely rotatable around a second axis intersecting with a virtual axis eccentric to the first axis, wherein a part of an outer circumferential surface of the roller main body protrudes from the base member and the rotating member, and the roller disposition portion is a through-hole which penetrates the rotating member in a direction along the first axis.
2. The carrying roller according to claim 1, wherein the rotating member is housed in a housing portion of the base member, and a support portion of the roller main body is disposed in the housing portion.
3. The carrying roller according to claim 2, wherein an end portion of the rotating member is provided to overlap an end portion of the housing portion of the base member when viewed from an axial direction of the first axis.
4. The carrying roller according to any one of claims 1 to 3, wherein the rotating member is supported by the base member via a thrust bearing rotatable around the first axis.
5. The carrying roller according to claim 4, wherein the roller main body is disposed inside the thrust bearing.
6. The carrying roller according to any one of claims 1 to 5, wherein an elastic piece 5 attachable and detachable by elasticity is provided on the outer circumference of the rotating member, and the rotating member is locked to the base member by the elastic piece.
7. The carrying roller according to any one of claims 1 to 6, wherein an outer
10 circumferential surface of the roller main body has a top outer circumferential surface centered on the second axis.
8. The carrying roller according to claim 7, wherein the outer circumferential surface of the roller main body has inclined outer circumferential surfaces on both sides of the top 15 outer circumferential surface, the inclined outer circumferential surfaces being inclined from the top outer circumferential surface toward the second axis side.
9. The carrying roller according to any one of claims 1 to 8, wherein a first end side of the rotating member and the base member has an inclined end surface inclined to a
20 second end side of the base member from the roller main body side toward the outside in the radial direction.
10. The carrying roller according to any one of claims 1 to 6, wherein an outer circumferential surface of the roller main body is a curved surface having a
25 predetermined radius of curvature.
11. A carrying unit comprising a plurality of carrying rollers according to any one of claims 1 to 10, wherein a carrying surface is formed by the outer circumferential surfaces of the plurality of roller main bodies.
Intellectual
Property
Office
Application No: GB 1714231.6 Examiner: Mr Aidan Black
GB1714231.6A 2016-09-08 2017-09-05 Carrying Roller and carrying unit Withdrawn GB2556381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016175872A JP2018039628A (en) 2016-09-08 2016-09-08 Transport roller and transport unit

Publications (2)

Publication Number Publication Date
GB201714231D0 GB201714231D0 (en) 2017-10-18
GB2556381A true GB2556381A (en) 2018-05-30

Family

ID=60050686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1714231.6A Withdrawn GB2556381A (en) 2016-09-08 2017-09-05 Carrying Roller and carrying unit

Country Status (3)

Country Link
JP (1) JP2018039628A (en)
KR (1) KR20180028385A (en)
GB (1) GB2556381A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589542A (en) * 1983-12-19 1986-05-20 The Boeing Company Cargo drive unit
US4913277A (en) * 1987-10-12 1990-04-03 Carl Schenck Ag Transport device for redirecting piece goods in one plane
US5097565A (en) * 1989-11-17 1992-03-24 The Boeing Company Cargo caster bearing assembly
WO2000006474A1 (en) * 1998-07-30 2000-02-10 Fmc Corporation Material handling unit with multidirectional helical roller assemblies
TW381992B (en) * 1996-10-08 2000-02-11 Revvo Castor Company Ltd Castor assembly and device provided with the same
US6340085B1 (en) * 1998-02-20 2002-01-22 Telair International Gmbh Roller drive unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589542A (en) * 1983-12-19 1986-05-20 The Boeing Company Cargo drive unit
US4913277A (en) * 1987-10-12 1990-04-03 Carl Schenck Ag Transport device for redirecting piece goods in one plane
US5097565A (en) * 1989-11-17 1992-03-24 The Boeing Company Cargo caster bearing assembly
TW381992B (en) * 1996-10-08 2000-02-11 Revvo Castor Company Ltd Castor assembly and device provided with the same
US6340085B1 (en) * 1998-02-20 2002-01-22 Telair International Gmbh Roller drive unit
WO2000006474A1 (en) * 1998-07-30 2000-02-10 Fmc Corporation Material handling unit with multidirectional helical roller assemblies

Also Published As

Publication number Publication date
GB201714231D0 (en) 2017-10-18
JP2018039628A (en) 2018-03-15
KR20180028385A (en) 2018-03-16

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