US3616894A - Accumulation section for a conveyor - Google Patents
Accumulation section for a conveyor Download PDFInfo
- Publication number
- US3616894A US3616894A US844792A US3616894DA US3616894A US 3616894 A US3616894 A US 3616894A US 844792 A US844792 A US 844792A US 3616894D A US3616894D A US 3616894DA US 3616894 A US3616894 A US 3616894A
- Authority
- US
- United States
- Prior art keywords
- belt
- pulley
- engagement
- lever
- drive
- 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.)
- Expired - Lifetime
Links
- 238000009825 accumulation Methods 0.000 title claims description 13
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- RETIMRUQNCDCQB-UHFFFAOYSA-N mepivacaine hydrochloride Chemical compound Cl.CN1CCCCC1C(=O)NC1=C(C)C=CC=C1C RETIMRUQNCDCQB-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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
- B65G13/00—Roller-ways
- B65G13/02—Roller-ways having driven rollers
- B65G13/06—Roller driving means
- B65G13/07—Roller driving means having endless driving 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
- B65G47/261—Accumulating articles
Definitions
- the invention relates to a conveyor system in which a series of pallets are moved on rails by means of individual driving wheels spaced along the track for frictional engagement with the underside of the pallets; a lever system is used to engage the individual wheels with a common belt drive power source or to brake the individual wheels when not being driven.
- SHEET 2 OF 2 ACCUMULATION SECTION FOR A CONVEYOR This invention relates to an accumulation section for a pallet conveyor comprising drive wheels which normally act on the underside of the pallets, which are mounted on support rails and which are set in rotation by V-belts, wherein the drive wheels may have one special drive per support rail, to act on the V-belts, according to our copending Pat. application Ser. No. 844,795, filed concurrently with this application, entitled "Pallet Conveyor.
- accumulation sections In front of loading stations or deflectors in conveyors socalled accumulation sections are required, where approaching pallets are brought to a standstill in such a way that they either touch one another or stop a short distance away from one another.
- rollers are driven by a rubberband on their underside. The whole length of the band may be lowered, so that no further drive is imparted to the rollers. The disconnection of the drive is initiated by a lever with an attached feeler roller, which is controlled by a first pallet.
- the drive for the V-belt is provided below the actual conveyor track by means of a frictional wheel adjacent a motor.
- the frictional wheel is lifted off the motor by means of a lever with a feeler roller, so that the rollers can no longer be driven.
- a brake acting laterally on the rollers is also provided, its action depending on the weight of the pallets above it.
- the V-belt drive may be disconnected at the shaft of the drive wheels.
- the elements which interrupt the flow of power to the drive wheels-being provided actually on the drive wheel in question are accommodated within the profile of the track between the two support rails.
- V-belts extending continuously over a plurality of drive wheels and arranged to be pressed onto V-belt pulleys by tensioning pulleys
- the tensioning rollers are both arranged on a lever which may be pivoted out of the position in which it presses the belt against the pulley, in order to disconnect the drive, and an additional lifting roller is provided on the lever to lift the upper run of the belt offthe pulley.
- An embodiment of this type may also be accommodated within the profile of the track.
- FIG. 1 shows the construction of a drive wheel for an accumulation section according to the invention with a belt-tensioning roller provided on an articulated lever;
- HO. 2 shows a drive wheel provided with a single-plate clutch
- FIG. 3 is a front elevation of a drive wheel which can additlonully be braked.
- FIG. 4 is a plan view of part of FIG. 3.
- FIG. 1 a drive wheel 2 is overhung mounted on a support rail 1 by an axle.
- a pulley 5 for a V -belt 3 is also provided on the shaft.
- the drive wheel 2 is rotated by the belt 3 and pulley 5, and the pulley 5 is accordingly frictionally connected to the wheel 2.
- a lever 69 is also pivoted to the said shaft. It is arranged to pivot about a transverse axis 68 which coincides with the Ian gitudinal axis of the first-mentioned axle.
- the lever 69 carries belt-tensioning rollers 70 and 71 respectively, at each end.
- the roller 70 urges the lower run 3 of the V-belt 3 into frictional connection with the pulley 5, while the roller 71 urges the upper run 3" into frictional connection with the pulley 5.
- the lever 69 is additionally provided with a lifting roller 72, which is arranged below the upper run 3". When the tensioning rollers 70, 71 are moved downwards and upwards respectively by means of the lever 69, the lifting roller 72 raises the upper run 3" into a position in which the frictional connection is released, thereby ensuring that the run 3" is definitely freed from the pulley 5.
- the lever 69 During the pivoting movement of the lever 69 which releases the frictional connection, the lower run 3 moves away from the V-belt pulley 5 by gravity, to a greater or lesser, but :in any case sufficient, extent.
- the lever 69 is displaced or pivoted, by means of a rod 67 which is pivoted to another arm thereof, although the rod 67 and lever 69 may, of course, be connected by methods other than that illustrated.
- V-belt 3 is shown in broken lines in the position where it extends over a plurality of pulleys 5 of drive wheels 2 with a frictional connection, and is shown in solid lines in the position where the connection between the pulley 5 and the belt 3 is released.
- the lever 69 When the drive roller 2 is to be driven, the lever 69 is moved into the broken line position by the force of a spring 73, so that the V-belt 3 is guided onto the pulley 5 by the spring bias.
- the spring 73 bears on the stop 74.
- FIG. 2 shows a single-plate clutch between the V-belt pulley 5 and a drive sprocket 8, as a further example of the disconnection of the driving force and the drive wheel 2 according to the invention. That portion of the clutch illustrated above the central section line of FIG. 2 is shown disengaged and is shown engaged below the section line of HO. 2. The pulley 5 is again fixed to the drive wheel 2. The vertical position of the lever 74' (dotted lines) corresponds to the locked state, and its inclined position (solid lines) to the uncoupled state.
- the lever 74 together with a shaft 74" and a lever member 74", forms a rigid component mounted on a support 75.
- the member 74 is linked by a fulcrum pin 76 to a lever 77, which carries a pin 78 at the other end.
- a shaft 79, on which the drive wheel 72 is mounted on the support rail 1, also displaceably supports a sliding member 80.
- the latter acts, by means of a ball bearing 81, on a spring 82, having a disc 83 which is applied to the sprocket 8.
- a clutch lining 84 is provided on the opposite side of the sprocket; in the engaged condition it cooperates with a surface of the V-belt pulley 5.
- FIG. 3 shows a brake which is mounted on part of the pulley 5 not contacted by the V-belt 3. It is actuated by a bar 65 connected to an arm 86.
- the arm 86 is, in turn, linked by a bearing 87 to the support rail 1.
- a brake shoe 88 having an arcuate wearing surface 88'. The shoe is drawn back into its release position by a spring 89, so that the bar has to be compression loaded in order to engage the brake.
- the brake shoe wearing surface 88' is wedge shaped, so that it can fit snugly into the wedgeshaped groove in the V-belt pulley 5.
- the drive wheel 2 is braked, since it is fixedas already mentioned-to the pulley 5.
- the brake illustrated in FIGS. 3 and 4 may be provided on the drive wheels shown in FIGS. 1 and 2. But it is quite possible as illustrated not to provide all the drive wheels 2 with such brakes. Care must then be taken, however, to ensure that the brakes are distributed over the individual wheels 2, in such a way that out of the wheels supporting a pallet there is always one which has a brake. Operation of the lever 69 and the clutch in FIG. 2 is preferably synchronized with that of the brake in FIGS. 3 and 4. This can be done either by stopping the first pallet 18 to arrive at an accumulation section by manually operating the lever 69 and clutch in FIG.
- first pallet 18 stationary-by stopping the successive pallets through actuation of switches by the first pallet 18, causing the successive levers 69, clutches and brakes to be set in operation. It is possible, however, for the first pallet 18 also to be stopped by electrical control means and for the succeeding pallets to be halted as described.
- said coupling means includes a shaft for said drive wheel and a V-belt pulley attached to said shaft
- said belt means includes a horizontally extending V-belt for engagement with said pulley
- said clutching means includes pivoted lever means including a roller for engagement with said V-belt for tensioning the belt into driving engagement with the pulley when the lever means is urged in one direction, and a second roller mounted on the lever means for engagement with the belt for urging the belt out of engagement with the pulley when the lever means is urged in the opposite direction.
- said coupling means includes a shaft for supporting one of said drive wheels and a pulley means rotatably supported on said shaft, said pulley means being in operative engagement with said driven belt means, said clutch means including a driven plate connected with said drive wheel and a driving plate connected with said pulley means, said clutch means also including means for axially shifting one of said plates into and out of operative engagement with the other of said plates.
- said clutch means also includes articulated lever means connected with said one of said plates for said axial shifting thereof.
- said coupling means includes a V-belt pulley rotatably mounted on said horizontal rails and operatively connected with a drive wheel
- said braking means includes a wedge-shaped element and means for shifting said wedge-shaped element into frictional engagement with the V-belt pulley.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1756915A DE1756915C3 (de) | 1968-08-01 | 1968-08-01 | Transportrollenbahn |
Publications (1)
Publication Number | Publication Date |
---|---|
US3616894A true US3616894A (en) | 1971-11-02 |
Family
ID=5694289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US844792A Expired - Lifetime US3616894A (en) | 1968-08-01 | 1969-07-25 | Accumulation section for a conveyor |
Country Status (4)
Country | Link |
---|---|
US (1) | US3616894A (es) |
FR (1) | FR2014824A6 (es) |
GB (1) | GB1230918A (es) |
NL (1) | NL6907493A (es) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3724642A (en) * | 1971-07-30 | 1973-04-03 | Rapistan Inc | Accumulator with braking |
US3967718A (en) * | 1975-01-17 | 1976-07-06 | Versa Corporation | Live roller conveyor |
FR2300722A1 (fr) * | 1972-10-09 | 1976-09-10 | Meijden Antonius V D | Voie de rouleaux |
US4164998A (en) * | 1977-02-16 | 1979-08-21 | David A. DeGood | Accumulation live roller conveyor |
US4174777A (en) * | 1978-02-24 | 1979-11-20 | A-T-O Inc. | Zero pressure accumulating conveyor and method |
US4488638A (en) * | 1982-05-27 | 1984-12-18 | Figgie International Inc. | Live roller accumulating brake conveyor |
US5076420A (en) * | 1991-01-02 | 1991-12-31 | David Kuschel | Clutch assembly for a zoned live conveyor |
US9371186B2 (en) | 2012-11-19 | 2016-06-21 | Kiener Maschinenbau Gmbh | Friction drive for force transmission, in particular for a transport conveying device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2940550A (en) * | 1955-02-28 | 1960-06-14 | Rockwell Standard Co | Cone brake assembly |
US3451527A (en) * | 1968-05-03 | 1969-06-24 | John M Leach | Article handling conveyors |
-
1969
- 1969-05-14 NL NL6907493A patent/NL6907493A/xx unknown
- 1969-05-16 GB GB1230918D patent/GB1230918A/en not_active Expired
- 1969-06-30 FR FR6922041A patent/FR2014824A6/fr not_active Expired
- 1969-07-25 US US844792A patent/US3616894A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2940550A (en) * | 1955-02-28 | 1960-06-14 | Rockwell Standard Co | Cone brake assembly |
US3451527A (en) * | 1968-05-03 | 1969-06-24 | John M Leach | Article handling conveyors |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3724642A (en) * | 1971-07-30 | 1973-04-03 | Rapistan Inc | Accumulator with braking |
FR2300722A1 (fr) * | 1972-10-09 | 1976-09-10 | Meijden Antonius V D | Voie de rouleaux |
US3967718A (en) * | 1975-01-17 | 1976-07-06 | Versa Corporation | Live roller conveyor |
US4164998A (en) * | 1977-02-16 | 1979-08-21 | David A. DeGood | Accumulation live roller conveyor |
US4174777A (en) * | 1978-02-24 | 1979-11-20 | A-T-O Inc. | Zero pressure accumulating conveyor and method |
US4488638A (en) * | 1982-05-27 | 1984-12-18 | Figgie International Inc. | Live roller accumulating brake conveyor |
US5076420A (en) * | 1991-01-02 | 1991-12-31 | David Kuschel | Clutch assembly for a zoned live conveyor |
US9371186B2 (en) | 2012-11-19 | 2016-06-21 | Kiener Maschinenbau Gmbh | Friction drive for force transmission, in particular for a transport conveying device |
Also Published As
Publication number | Publication date |
---|---|
NL6907493A (es) | 1970-02-03 |
FR2014824A6 (es) | 1970-04-24 |
GB1230918A (es) | 1971-05-05 |
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