Weighing scales – Computer – Electrical
Patent
1997-12-19
2000-03-14
Gibson, Randy W.
Weighing scales
Computer
Electrical
177119, 177DIG11, 198766, 366111, 222196, G01G 19393, G01G 1300, B65G 2708
Patent
active
060375493
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a combinatorial weighing apparatus.
In combinatorial weighing apparatus the products to be weighed are distributed by a distributing device and fed to the individual weighing receptacles by vibrating channels which are oscillated by electromagnetic driving devices. It is a requirement of such combinatorial weighing apparatus that the vibrating channel can be easily dismounted for cleaning purposes.
Document EP 0 677 460 A2 describes a combinatorial weighing apparatus with a first cylindrical flange being mounted to the vibrating channel. The driving apparatus comprises a second cylindrical flange. Both flanges are interconnected by a circular clamp.
Document U.S. Pat. No. 4,702,394 discloses a combinatorial weighing apparatus having the vibrating channels screwed to the respective vibrating motors. The vibrating motors are each resiliently connected to a base plate. Each base plate has an elongate hole with a first portion, a subsequent second portion, a further subsequent third portion and a fourth portion following the third portion. The first and third portions are smaller than the head of a connection pin and the second and fourth portions are wider than the head of the connection pin. A table has two spaced connection pins arranged thereon for each base plate. The base plate is placed onto the table so that the two connection pins extend through the second and fourth region, resp. To effect the connection between the base plate and the table, the base plate is displaced to bring the shafts of the two connection pins into engagement with the first and third region, resp.
It is the object of the invention to provide a combinatorial weighing apparatus having a coupling device for detachably coupling the vibrating channel with the driving apparatus to ensure an improved and easily operable connection between the vibrating channel and the driving apparatus.
This object is achieved by the combinatorial weighing apparatus defined in claim 1.
The combinatorial weighing apparatus guarantees a reliable and playless connection between the vibrating channel and the vibrating motor.
Further developments of the invention are defined in the subclaims.
In the following an embodiment will be described with reference to the Figures. In the Figures:
FIG. 1 shows a combinatorial weighing apparatus;
FIG. 2 is a perspective view of the coupling device according to the invention;
FIG. 3 shows a partial sectional view of the coupling device;
FIG. 4 shows a top view of part of the coupling device with the slide being in a first position;
FIG. 5 is an enlarged cross-sectional view along line V--V of FIG. 4;
FIG. 6 shows a top view of a portion of the coupling device with the slide being in its second position; and
FIG. 7 shows an enlarged cross-sectional view along line VII--VII of FIG. 6 .
As shown in FIG. 1, the combinatorial weighing apparatus comprises a distributing device 1, vibrating channels 2, driving devices 3, coupling devices 4 and weighing receptacles 5. A respective coupling device 4 connects a vibrating channel 2 with a driving device 3.
As in particular shown in FIGS. 2 and 3 the coupling device 4 comprises a cylindrical intermediate piece 6 having one end thereof connected to the driving device 3. The other end of the cylindrical intermediate piece 6 is connected to a bottom piece 8 through bolts 7. The disk-shaped bottom piece 8 comprises an upper side 9 opposite to the intermediate piece 6. A stepped shoulder 10 is provided at the outer circumference of the upper side 9. The coupling device 4 further comprises a counterpart 12 which is connected to the lower side 11 of the vibrating channel 2 and has a lower side 13 facing away from the vibrating channel 2. As best shown in FIGS. 2 and 4, the lower side 13 has three projections 14 projecting towards the bottom piece 8 and oriented perpendicular to the disk plane. The projections 14 are formed as segments of a cylindrical wall and circumferentially offset by 120.degree.. The inner diameter of the segments is sized to snugly em
REFERENCES:
patent: 4600096 (1986-07-01), Yamano et al.
patent: 4700827 (1987-10-01), Haaser
patent: 4702394 (1987-10-01), Katzoka
patent: 5773765 (1998-06-01), Sashiki et al.
Gibson Randy W.
Multipond Wagetechnik GmbH
Neuner George W.
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