Modular conveyor system

• US 5,797,481 A
• Filed: 01/29/1996
• Issued: 08/25/1998
• Est. Priority Date: 01/29/1996
• Status: Expired due to Fees

• Current Assignee: Hi-Speed Checkweigher Co, Inc., Mettler-Toldeo Process Analytical Inc., OHAUS Corp. (Mettler-Toledo International Inc.)
• Original Assignee: Hi-Speed Checkweigher Co, Inc.
• Inventors: Helmetsie, Eugene A., Uber, John E., Matson, Carl A.
• Primary Examiner(s): Bucci, David A.
• Application Number:
  US08/591,932
• Time in Patent Office: 939 Days
• Field of Search: 198/861.1, 198/583, 198/813, 198/816, 198/817
• US Class Current: 198/813
• CPC Class Codes: B65G 21/02 consisting essentially of struts, ties, or like structural elements
• CPC Class Codes: B65G 23/44 Belt or chain tensioning arrangements

Abstract

A modular conveyor system is disclosed as including an unique supporting framework featuring a horizontally elongated spine (12); legs (32) for supporting spine (12); posts (34) upstanding from legs (32); and an elongated rail (18) supported by posts (34) and arranged above and in a horizontally offset relationship relative to spine (12). Spine (12) serves to support one or more modular conveyor units (66), rail (18) serves to support one or more diverse art devices (48) required to be associated with conveyor units (66); and posts (34) serve to support a side panel (24) to extend lengthwise of spine (12).

Claims

1. A modular conveyor system comprising in combination:

a framework, said framework including a horizontally elongated spine, a pair of supports depending one from each end of said spine, a pair of standards upstanding one from each of said supports and each of said standards including at least one mounting portion disposed above said spine in a horizontally offset relationship relative thereto, and at least one elongated rail having opposite ends thereof fixed one to each of said mounting portions;

at least one conveyor system art device;

mounting means for adjustably mounting said art device on said rail; and

at least one modular conveyor unit having a conveyor element supported for movement along a path of travel and conveyor unit mounting means for adjustably mounting said conveyor unit on said spine in a selected position lengthwise thereof.

2. A modular conveyor system according to claim 1, wherein said conveyor unit mounting means includes a first bracket, a second bracket, said first and second brackets each having opposite free edge portions, and releasable clamp means engaging with said opposite free edge portions to releasably clamp said spine between said first and second brackets.

3. A modular conveyor system according to claim 2, wherein said spine is of generally square cross-sectional configuration and supported to arrange a first pair of adjacent side surfaces thereof to assume an inverted generally V-shaped configuration and define an upwardly facing clamping surface and a second pair of adjacent side surfaces thereof to assume a generally V-shaped configuration and define a downwardly facing clamping surface, and said first and second brackets engage with said upwardly and downwardly facing clamping surfaces, respectively.

4. A modular conveyor system according to claim 3, wherein said first bracket is of an inverted generally V-shaped configuration and said second bracket is of a generally M-shaped configuration.

5. A modular conveyor system according to claim 1, wherein each of said supports includes a pair of legs having upper ends thereof fixed to said spine, each of said standards additionally includes a pair of posts upstanding one post from each leg of said pair of legs, each said rail having lengthwise extending upper and lower edge portions, and each of said posts defines one of said mounting portions fixed to said rail vertically intermediate and spaced from said edge portions.

6. A modular conveyor system according to claim 1, wherein said spine is of generally square cross-sectional configuration and supported by said standards to arrange a first pair of adjacent side surfaces thereof to assume an inverted, generally V-shaped configuration and define an upwardly facing mounting surface and a second pair of adjacent side surfaces thereof to assume a generally V-shaped configuration and define a downwardly facing mounting surface, said conveyor unit mounting means includes a pair of brackets releasably clamped against said upwardly and downwardly facing mounting surfaces, and each of said supports includes a pair of legs having upper ends thereof fixed one to each of said second pair of adjacent side surfaces of said spine, and each of said standards additionally includes a pair of posts upstanding one from each leg of said pair of legs, and each of said posts has an upper end thereof defining one of said mounting portions.

7. A modular conveyor system according to claim 6, wherein said pair of brackets includes a first bracket having an inverted generally V-shaped configuration and a second bracket of generally M-shaped configuration, said first and second brackets each having opposite free edge portions, and releasable clamp means engage with said opposite free edge portions for releasably clamping said first and second brackets against said upwardly and downwardly facing surfaces, respectively.

8. A modular conveyor system according to claim 7, wherein said rail has upper and lower lengthwise extending opposite edges, and said mounting portion of each of said standards is fixed to a vertical mid portion of said rail in spaced relationship relative to said upper and lower edges thereof;

and mounting means for adjustably mounting said art device includes clamping means defining recesses for slidably receiving said upper and lower edges of said rail throughout the lengthwise extent thereof.

9. A modular conveyor system according to claim 1, wherein said standards define mounting openings facing transversely outwardly of said spine, standard mounting means are arranged within said openings, and said framework additionally includes a pair of side panels each sized to extend horizontally lengthwise of said spine between said standards, each of said side panels having mounting means arranged to extend inwardly of said mounting openings for engagement with said standard mounting means for attaching said side panels to said standards.

10. In a conveyor system having a framework for mounting a conveyor adapted for movement along a path of travel extending in a direction lengthwise of said framework, the improvement comprising:

said framework including an elongated spine extending horizontally lengthwise of said framework and a pair of supports for supporting opposite ends of said spine, said spine having a generally square cross-sectional configuration and supported by said supports to arrange a first pair of adjacent side surfaces thereof to assume an inverted, generally V-shaped configuration and define an upwardly facing clamping surface and a second pair of adjacent side surfaces thereof to define a generally V-shaped configuration and define a downwardly facing clamping surface, each of said supports including a pair of spine supporting legs having upper ends affixed one to each of said second pair of adjacent side surfaces; and

mounting means is provided to mount said conveyor on said spine, said mounting means includes a pair of spine-mounting brackets and releasable clamping means, said pair of spine-mounting brackets including a first bracket connected to said conveyor and having an inverted generally V-shaped configuration and a second bracket of generally M-shaped configuration, said first and second brackets each having opposite free edge portions arranged closely adjacent one another when said first and second brackets engage with said upwardly and downwardly facing clamping surfaces, respectively, said clamping means releasably clamp said edge portions to releasably clamp said brackets against said spine in an adjusted position lengthwise thereof, and said conveyor includes a conveyor element movably supported by a frame, and said mounting means also includes means for releasably connecting said frame to said first bracket comprising a connector bracket coupled to said first bracket and releasably engaging positioning means for gravity supporting said frame on said connector bracket in a fixed position relative thereto in a direction extending lengthwise of said spine, and latching means for releasably retaining said frame in said fixed position.

11. In a conveyor system having a framework for mounting a conveyor adapted for movement along a path of travel extending in a direction lengthwise of said framework, the improvement comprising:

said framework including an elongated spine extending horizontally lengthwise of said framework and a pair of supports for supporting opposite ends of said spine, said spine having a generally square cross-sectional configuration and supported by said supports to arrange a first pair of adjacent side surfaces thereof to assume an inverted, generally V-shaped configuration and define an upwardly facing clamping surface and a second pair of adjacent side surfaces thereof to define a generally V-shaped configuration and define a downwardly facing clamping surface, each of said supports including a pair of spine supporting legs having upper ends affixed one to each of said second pair of adjacent side surfaces; and

mounting means is provided to mount said conveyor on said spine, said mounting means includes a pair of spine-mounting brackets and releasable clamping means, said pair of spine-mounting brackets including a first bracket connected to said conveyor and having an inverted generally V-shaped configuration and a second bracket of generally M-shaped configuration, said first and second brackets each having opposite free edge portions arranged closely adjacent one another when said first and second brackets engage with said upwardly and downwardly facing clamping surfaces, respectively, said clamping means releasably clamp said edge portions to releasably clamp said brackets against said spine in an adjusted position lengthwise thereof, and said conveyor includes a conveyor element movably supported by a frame, said mounting means includes means for releasably connecting said frame to said first bracket comprising a connector bracket coupled to said first bracket and having upstanding side flanges, dependant side flanges carried by said frame and arranged parallel to said upstanding side flanges, said upstanding and dependant side flanges having positioning means for gravity supporting said frame on said connector bracket in a fixed position in a direction extending lengthwise of said spine, and latching means for releasably retaining said frame in said fixed position.

12. A conveyor system according to claim 11, wherein said positioning means comprises a pair of pins fixed to each of said upstanding side flanges to project in a direction extending horizontally transversely of said spine and a pair of edge-opening recesses formed in said dependant side flanges and sized to removably slidably receive said pins upon lowering movement of said frame downwardly onto said connector bracket, and said latching means is carried by said upstanding and dependant side flanges.

13. A conveyor system according to claim 12, wherein said conveyor element is an endless conveyor belt and said frame mounts motor means for driving said belt.

14. In a conveyor system having a framework for mounting a conveyor adapted for movement along a path of travel extending in a direction lengthwise of said framework, the improvement comprising:

said framework including an elongated spine extending horizontally lengthwise of said framework and a pair of supports for supporting opposite ends of said spine, said spine having a generally square cross-sectional configuration and supported by said supports to arrange a first pair of adjacent side surfaces thereof to assume an inverted, generally V-shaped configuration and define an upwardly facing clamping surface and a second pair of adjacent side surfaces thereof to define a generally V-shaped configuration and define a downwardly facing clamping surface, each of said supports including a pair of spine supporting legs having upper ends affixed one to each of said second pair of adjacent side surfaces; and

mounting means is provided to mount said conveyor on said spine, said mounting means includes a pair of spine-mounting brackets and releasable clamping means, said pair of spine-mounting brackets including a first bracket connected to said conveyor and having an inverted generally V-shaped configuration and a second bracket of generally M-shaped configuration, said first and second brackets each having opposite free edge portions arranged closely adjacent one another when said first and second brackets engage with said upwardly and downwardly facing clamping surfaces, respectively, said clamping means releasably clamp said edge portions to releasably clamp said brackets against said spine in an adjusted position lengthwise thereof, and said conveyor includes at least two conveyor chains, a pair of parallel support elements arranged to extend horizontally transversely of said path of travel and to be coupled to said first bracket, and a chain support means for mounting each of said chains on said support elements, each of said support means including an elongated runner for slidably supporting one of said chains, an elongated runner support having opposite ends, and a pair of adjustable mounting means provided one adjacent each of said opposite ends for adjustably mounting said runner support on said support elements for movement both lengthwise and vertically thereof.

15. A conveyor system according to claim 14, wherein each of said adjustable mounting means includes first and second clamping means slidably supported by one of said support elements for movement lengthwise thereof and adjustably carried by one of said opposite ends for adjustably moving said one of said opposite ends lengthwise and vertically of said one of said support elements.

16. A conveyor system according to claim 14, wherein each said runner support is formed with an upwardly opening and lengthwise extending groove for slidably supporting one of said runners for movement relative to said runner support in a direction extending lengthwise of said spine and carries means for releasably clamping said one of said runners in a desired adjustment position lengthwise of said groove, and said opposite ends are formed with lower surfaces, end surfaces, opposite side surfaces, and transversely extending openings passing through said opposite side surfaces for loosely receiving said support elements and adjustment slots communicating with said transversely extending openings, said adjustment slots opening outwardly through both said end surfaces and said lower surfaces, and each of said adjustable mounting means includes first and second clamping means having first ends thereof arranged within one of said slots and formed with through openings for slidably receiving one of said support elements and second ends projecting outwardly of said one of said slots in directions extending lengthwise and vertically relative to said runner support, respectively, and said second ends of said first and second clamping means threadably engage with clamping nuts arranged to bear on said end and lower surfaces, respectively.

17. A conveyor system according to claim 16, wherein said transversely extending openings constrain against relative movement of said runner supports and said support elements in a direction extending lengthwise of said runner supports.

18. In a conveyor system having a framework for mounting a conveyor adapted for movement along a path of travel extending in a direction lengthwise of said framework, the improvement comprising:

said framework including an elongated spine extending horizontally lengthwise of said framework and a pair of supports for supporting opposite ends of said spine, said spine having a generally square cross-sectional configuration and supported by said supports to arrange a first pair of adjacent side surfaces thereof to assume an inverted, generally V-shaped configuration and define an upwardly facing clamping surface and a second pair of adjacent side surfaces thereof to define a generally V-shaped configuration and define a downwardly facing clamping surface, each of said supports including a pair of spine supporting legs having upper ends affixed one to each of said second pair of adjacent side surfaces; and

mounting means is provided to mount said conveyor on said spine, said mounting means includes a pair of spine-mounting brackets and releasable clamping means, said pair of spine-mounting brackets including a first bracket connected to said conveyor and having an inverted generally V-shaped configuration and a second bracket of generally M-shaped configuration, said first and second brackets each having opposite free edge portions arranged closely adjacent one another when said first and second brackets engage with said upwardly and downwardly facing clamping surfaces, respectively, said clamping means releasably clamp said edge portions to releasably clamp said brackets against said spine in an adjusted position lengthwise thereof, and said conveyor includes a flexible element trained about parallel guide members arranged adjacent infeed and outfeed ends of said conveyor and a tensioning mechanism is provided for adjustably supporting one of said guide members for movement relative to the other for tensioning said conveyor element in the direction of travel thereof from said infeed end to said outfeed end, said tensioning mechanism comprises a pair of like tensioning devices, each of said devices including a guide means, a slide member having a first end supported by said guide means for sliding movement aligned with said direction of travel and a second end for mounting an end of said one of said guide members, adjustment means for defining a reference surface adjustably positioned lengthwise of said direction of travel, an operator supported on said slide member for sliding movement therewith in said direction of travel and being manually movable relative to said slide member between tension release and tensioning positions, said operator being engageable with said reference surface to move said guide member into a conveyor element tensioned position incident to movement of said operator from said tension release position into said tensioning position thereof, and said slide member and said operator are slidably removable from said guide means in a direction aligned with said direction of travel.

19. A conveyer system according to claim 18, wherein said guide means defines a bore opening and a slot opening therethrough radially and lengthwise of said bore opening, said first end of said slide member is a cylindrical pin slidably and rotatably received within said bore opening, and said operator is rotatably supported on said slide member by a stud slidably received within said slot and cooperating therewith to prevent rotation of said first end within said bore opening.

20. A conveyer system according to claim 19, wherein said adjustment means includes an adjustment opening arranged parallel to said bore opening and having one end threaded to receive an adjustment bolt and an opposite end slidably supporting an adjustment pin, said adjustment pin having one end engageable by said adjustment bolt and an opposite end defining said reference surface, said adjustment pin is slidably removable from said adjustment opening in alignment with said direction of travel, and said operator is formed with a cam surface arranged for engagement with said reference surface.

21. A conveyor mechanism comprising in combination:

a supporting framework; and

at least one modular conveyor unit including a frame, a conveyor element supported on said frame for movement along a path of travel, and drive means supported by said frame for effecting movement of said conveyor element, said framework and said frame having means engageable upon lowering of said frame onto said framework for locating said frame in a position relative to said framework both in directions extending in alignment with and transversely of said path of travel, said means engageable upon lowering of said frame includes parallel flanges depending from said frame and parallel flanges upstanding from said framework and arranged for sliding surface-to-surface engagement with said depending flanges to constrain said frame against movement relative to said framework horizontally transversely of said path of travel, and slidably engaging pin and recess means carried by said depending and upstanding flanges for supporting said frame on said framework and constraining said frame against movement relative to said framework in alignment with said path of travel; and

latch means for releasably retaining said frame in said position.

22. In a conveyor mechanism comprising in combination:

a supporting framework; and

at least one modular conveyor unit including a frame, a conveyor element supported on said frame for movement along a path of travel, and drive means supported by said frame for effecting movement of said conveyor element, said framework and said frame having means engageable upon lowering of said frame onto said framework for locating said frame in a position relative to said framework both in directions extending in alignment with and transversely of said path of travel, said means engageable upon lowering of said frame includes a pair of parallel flanges depending from said frame and parallel flanges upstanding relative to said framework, a pair of pins mounted on each of said upstanding flanges to extend horizontally transversely of said path of travel, and a pair of edge-opening recesses defined by each of said depending flanges for slidably receiving said pins, said dependant and upstanding flanges engaging to constrain said frame against movement in a direction horizontally transversely of said path of travel, said pins and said edge opening recesses engaging to support said frame on said framework and to constrain said frame against movement in a direction aligned with said path of travel, and latch means carried by said depending and upstanding flanges for releasably retaining said frame in said position.

23. A conveyor unit comprising:

support means;

at least two conveyor chains; and

means for mounting said chains on said support means for movement along a path of travel, and for adjustment horizontally transversely of said support means to vary the horizontal distance between said conveyor chains and vertically of said support means.

24. A conveyor unit according to claim 23, wherein said means for mounting said chains includes a pair of parallel support elements carried by said support means and arranged to extend horizontally transversely of said path of travel;

at least two chain supports for slidably supporting said chains during movement thereof along said path of travel; and

means to adjustably fix opposite ends of said chain supports one on each of said support elements for adjustment lengthwise thereof, thereby to adjustably vary said horizontal distance between said chains and for adjustment vertically of said support elements, thereby to adjustably move said chains vertically relative to said support means.

25. A conveyor unit according to claim 24, wherein said chain supports include runners for slidably supporting said chains and means to adjustably position said runners relative to said support elements in a direction aligned with said path of travel.

26. In a conveyor of the type including a support and at least two conveyor chain element supporting runners for individually slidably supporting at least two chain elements incident to movement of said chain elements along a path of travel extending lengthwise of said support, the improvement of means for adjustably positioning said runners relative to each other and said support comprising:

a pair of parallel support elements carried by said support and extending horizontally transversely of said path of travel;

at least two elongated runner supports each having an upwardly opening groove for slidably supporting one of said runners and means for releasably clamping said one of said runners within said groove for adjustment lengthwise thereof, said runner supports having transversely extending and vertically elongated openings adjacent opposite ends thereof for loosely receiving said support elements, and said opposite ends mounting clamping means engageable with said support elements to releasably clamp said runner supports relative to said support elements in desired portions lengthwise thereof to vary the horizontal distance between said runner supports and in desired positions vertically of said vertically elongated openings thereby to vary the vertical distance between said runners and said support.

27. In a conveyor of the type having at least two conveyor chains and at least two runners carried by a support for slidably supporting said chains for movement along a path of travel, the improvement, wherein said runners are mounted on said support by:

a pair of parallel support elements carried by said support to extend horizontally transversely of said path of travel;

an elongated runner support for each runner and having opposite ends thereof formed with a pair of transversely extending openings for loosely receiving said support elements and a pair of outwardly opening slots arranged one in communication with and to extend transversely of each of said openings; and

a pair of clamping devices associated one with each of said slots and having first ends formed with openings for slidably receiving one of said support elements and second ends threaded to receive nuts arranged to bear against one threaded to receive nuts arranged to bear against one of said opposite ends to selectively retain said runner support in an adjusted position vertically and lengthwise of said support elements.

28. A framework for mounting a conveyor having a path of travel, said framework comprising:

a conveyor supporting spine elongated in a direction aligned with said path of travel;

legs depending from said spine for supporting said spine in an essentially horizontally disposed position;

a pair of posts upstanding from a pair of said legs arranged adjacent one transverse side of said spline;

an elongated rail arranged above and in a horizontal offset relationship related to said spline and having opposite ends thereof fixed one to each post of said pair of posts;

a side panel sized to extend horizontally lengthwise of said spine and having opposite ends mounted one on each post of said pair of posts.

29. A framework according to claim 28, wherein said spine is of generally square cross-sectional configuration and supported by said legs to arrange a first pair of adjacent side surfaces of said spine to assume an inverted generally V-shaped configuration and a second pair of adjacent side surfaces of said spine to assume a generally V-shaped configuration, said legs having upper ends thereof connected to said second pair of adjacent side surfaces.

30. A framework according to claim 28, wherein said pair of posts define mounting openings facing transversely away from said spine and having mounting means arranged within said mounting openings.

31. A framework according to claim 30, wherein said mounting means arranged within said mounting openings includes a pair of mounting rods extending horizontally and transversely within each said mounting opening, and said mounting means carried adjacent each of said opposite ends includes a pair of mounting hooks adapted to overlie in engagement with said mounting rods.

32. A framework according to claim 31, wherein said panel includes a central portion and a pair of end caps fixed one to each end of said central portion, and each said pair of mounting hooks is mounted on a mounting plate fixed within one of said end caps.

33. A framework according to claim 30, wherein said pair of posts having mounting portions extending transversely away from said spine adjacent upper ends of said mounting openings and said opposite ends of said rail are fixed to said mounting portions.