WO1992012078A1 - A conveyor assembly - Google Patents
A conveyor assembly Download PDFInfo
- Publication number
- WO1992012078A1 WO1992012078A1 PCT/GB1992/000060 GB9200060W WO9212078A1 WO 1992012078 A1 WO1992012078 A1 WO 1992012078A1 GB 9200060 W GB9200060 W GB 9200060W WO 9212078 A1 WO9212078 A1 WO 9212078A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt
- stack
- conveyor assembly
- assembly according
- drive
- Prior art date
Links
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
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/16—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths
- B65G21/18—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors for conveyors having endless load-carriers movable in curved paths in three-dimensionally curved paths
-
- 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
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
- B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
-
- 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
- B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
- B65G2207/24—Helical or spiral conveying path
Definitions
- This invention relates to a conveyor assembly having a conveyor belt caused to follow an endless path part of which is formed by a helical conveying path consisting of a plurality of tiers arranged one on top of another in a stack.
- An aim of the present invention is tc provide an improved form of drive means for driving the conveyor belt.
- a conveyor assembly has a conveyor belt caused to follow an endless path part of which is formed by a helical conveying path consisting of a plurality of tiers arranged on top of one another in a stack, the edges of the belt having upstanding projections which act to space adjacent tiers of the stack, and drive means which drive the belt around the endless path and which apply drive to the belt at a location other than where the belt follows the helical conveying path.
- the drive means drive the belt at a location outside the stack, and it is thought that this will have advantages of ease of accessibility, simplicity and cheapness and better application of drive to the belt.
- a single drive means at a location external to the stack, avoids any build-up of tension in the belt (which can happen when a double drive is employed) and avoids the need for any form of device for taking up belt tension.
- the base of the stack may be supported by a turntable which is rotatably mounted so that in use the turntable supports and is rotated by the belt.
- the turntable thus freewheels, in contrast to known arrangements where the base of the stack is driven.
- the turntable may comprise inner and outer annular rings respectively supporting the inner and outer peripheries of the tiers, and these rincs may if desired be interconnected so that they rotate at the same rotational speed.
- the inner and outer rings may alternatively be separate and therefore capable of rotating at different rotational speeds, to cope with differing speeds of the inner and outer peripheries.
- the belt preferably descends the stack, being delivered to the stack at the top thereof and being drawn off the stack at the bottom. Although the belt preferably decends the stack it can also be allowed to ascend the stack if required.
- the belt is driven at a location where the belt approaches the infeed to the stack, and this location is preferably where the belt undergoes a change of direction of 180°.
- the drive means may comprise a rotatably driven hub having radial bores accommodating drive pins, the radially inner ends of the pins engaging an eccentric member as the hub rotates to cause the pins to move in the bores between radially projecting positions, in which the pins apply a drive to the belt, and retracted positions in which the pins are retracted from the belt to allow the latter to move away from the drive means.
- the hub may be one of two such hubs which are mounted on a common shaft which drive, through the respective sets of pins, the two sides of the belt.
- the drive can be by other means as well as the eccentric member pin arrangement.
- Using a belt which expands on the outside allows a minimum pitch on the links which means that a normal toothed sprocket could be used to drive sucn a belt.
- the conveyor assembly is particularly suitable for conveying a food product, and the spaces between the tiers are then dimensioned to suit the product being conveyed.
- the product is preferably treated as it moves along the helical stack. This treatment may be heating, drying or chilling, but is preferably freezing.
- Figure 1 is a perspective view of the conveyor assembly
- Figure 2 is a perspective view of a turntable support which supports a stack of tiers of a conveyor belt
- Figure 3 is a detailed view cf drive means for the conveyor belt
- Figure 4 is a fragmentary sectional view on the line IV-IV of Figure 3.
- the conveyor assembly comprises a conveyor belt 10 guided around an endless path part of which is formed by a helical conveying path consisting of a plurality of tiers arranged one on top of another so as tc form a stack 12.
- the edges of the belt have upstanding segmented projections which act to space adjacent tiers of the belt apart at a vertical distance to accommodate products being conveyed through the stack.
- the belt also has a base made of segmented elements which enable the belt to change direction in a horizontal plane as is required for the belt to move around the helical conveying path.
- the base of the stack is supported by the turntable support shown in Figure 2.
- This comprises a radially inner ring (not shown) supported for rotary sliding movement on a circular fixed rail 14 supported by legs 16.
- an outer annular ring (not shown) is supported for rotary sliding movement on a circular fixed outer rail 18 supported on legs 20.
- the inner and outer rings support the inner and outer peripheries of the lowermost tier of the stack 12, and the ability of the inner and outer rings to rotate on their respective circular rails 14, 18 enables the conveyor belt to move around its helical conveying path in the stack and to be drawn smoothly away from the base of the stack.
- the inner and outer rings are interconnected by radial spokes or the like.
- the conveyor belt 10 is driven at the location shown at 22 in Figure 1, where the belt changes its direction of movement through 180".
- the drive means at the location 22 comprise a sprocket 24 ( Figure 4) which is driven by a chain (not shown) and which is mounted on a drive shaft 26.
- Each end of the shaft 26 carries a drive hub 28 which has a plurality of angularly spaced radial bores, each accommodating a drive pin 30 urged by a corresponding spring towards a radially inner position.
- the inner peripheries of the pins engage the outer periphery of a circular plate 32 which is fixed and is eccentric with respect to the shaft 26.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4502579A JPH06507141A (en) | 1991-01-12 | 1992-01-10 | conveyor assembly |
BR9205559A BR9205559A (en) | 1991-01-12 | 1992-01-10 | Conveyor set |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9100689A GB2251588B (en) | 1991-01-12 | 1991-01-12 | Conveyor assembly |
GB9100689.0 | 1991-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992012078A1 true WO1992012078A1 (en) | 1992-07-23 |
Family
ID=10688351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1992/000060 WO1992012078A1 (en) | 1991-01-12 | 1992-01-10 | A conveyor assembly |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0565575A1 (en) |
JP (1) | JPH06507141A (en) |
AU (1) | AU1159192A (en) |
BR (1) | BR9205559A (en) |
CA (1) | CA2098587A1 (en) |
GB (1) | GB2251588B (en) |
WO (1) | WO1992012078A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2445091T3 (en) * | 2008-08-18 | 2014-02-28 | Ammeraal Beltech Modular A/S | Thrust band |
CN110775537B (en) * | 2019-11-22 | 2021-09-21 | 合肥龙图腾信息技术有限公司 | Full-automatic typewriter ribbon equipment assembly line |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2146367A1 (en) * | 1971-07-20 | 1973-03-02 | Ashworth Bros Inc | |
US3938651A (en) * | 1973-03-07 | 1976-02-17 | Frigoscandia Contracting Ab | Self-supporting spiral conveyor |
US4485914A (en) * | 1982-09-30 | 1984-12-04 | Ibm Corporation | Variable drive pin projection mechanism for a belt sprocket drive wheel |
US4565282A (en) * | 1982-11-26 | 1986-01-21 | Frigoscandia Contracting Ab | Storing installation for carrying a number of piled helically extending turns of an endless conveyor belt |
US4917234A (en) * | 1984-11-14 | 1990-04-17 | Seymour Timothy H | Wheel and chain power transmission machine |
US4951807A (en) * | 1987-08-10 | 1990-08-28 | Ashworth Bros., Inc. | Non-collapsing inside edge conveyor belt with dual pitch links |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB724549A (en) * | 1953-02-09 | 1955-02-23 | Eskimo Pie Corp | Apparatus for making frozen confections |
US3794156A (en) * | 1972-01-31 | 1974-02-26 | Rothmans Of Pall Mall | Conveyor |
SE376747B (en) * | 1972-10-25 | 1975-06-09 | J R E Wahren | |
US3826352A (en) * | 1972-10-27 | 1974-07-30 | Rexnord Inc | Spiral column for endless chain conveyor |
US4858750A (en) * | 1987-05-09 | 1989-08-22 | Lineal Thermotech Limited | Conveyors |
-
1991
- 1991-01-12 GB GB9100689A patent/GB2251588B/en not_active Expired - Fee Related
-
1992
- 1992-01-10 JP JP4502579A patent/JPH06507141A/en active Pending
- 1992-01-10 WO PCT/GB1992/000060 patent/WO1992012078A1/en not_active Application Discontinuation
- 1992-01-10 AU AU11591/92A patent/AU1159192A/en not_active Abandoned
- 1992-01-10 BR BR9205559A patent/BR9205559A/en not_active Application Discontinuation
- 1992-01-10 EP EP19920902239 patent/EP0565575A1/en not_active Withdrawn
- 1992-01-10 CA CA 2098587 patent/CA2098587A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2146367A1 (en) * | 1971-07-20 | 1973-03-02 | Ashworth Bros Inc | |
US3938651A (en) * | 1973-03-07 | 1976-02-17 | Frigoscandia Contracting Ab | Self-supporting spiral conveyor |
US4485914A (en) * | 1982-09-30 | 1984-12-04 | Ibm Corporation | Variable drive pin projection mechanism for a belt sprocket drive wheel |
US4565282A (en) * | 1982-11-26 | 1986-01-21 | Frigoscandia Contracting Ab | Storing installation for carrying a number of piled helically extending turns of an endless conveyor belt |
US4917234A (en) * | 1984-11-14 | 1990-04-17 | Seymour Timothy H | Wheel and chain power transmission machine |
US4951807A (en) * | 1987-08-10 | 1990-08-28 | Ashworth Bros., Inc. | Non-collapsing inside edge conveyor belt with dual pitch links |
Also Published As
Publication number | Publication date |
---|---|
JPH06507141A (en) | 1994-08-11 |
CA2098587A1 (en) | 1992-07-13 |
GB2251588B (en) | 1994-07-13 |
AU1159192A (en) | 1992-08-17 |
GB2251588A (en) | 1992-07-15 |
GB9100689D0 (en) | 1991-02-27 |
EP0565575A1 (en) | 1993-10-20 |
BR9205559A (en) | 1994-08-23 |
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