GB2116931A

GB2116931A - A band conveyor roller

Info

Publication number: GB2116931A
Application number: GB08307718A
Authority: GB
Inventors: Bernard Mossot
Original assignee: Equip Minier; EQUIPEMENT MINIER
Current assignee: Equip Minier; EQUIPEMENT MINIER
Priority date: 1982-03-22
Filing date: 1983-03-21
Publication date: 1983-10-05
Also published as: IT8347951A0; ES278981U; ES278981Y; BE896231A; ZA832002B; FR2523556B1; GB8307718D0; FR2523556A1; IT1166449B; GB2116931B

Abstract

This invention relates to a band conveyor roller which comprises two kinds of parts for the manufacture thereof, namely supple spacers (1) reproducible by mass production from a mouldable material, and disks (2), with said spacers (1) and disks (2) being assembled together simply by screwing.

Description

SPECIFICATION A band conveyor roller This invention relates to a band conveyor roller.

Band conveyors are known, of the type comprising rollers constituted by disks disposed on a supple cord itself carried by a web consisting of a cable made of metal or any other material. This type of roller is intended for fitting through conveyors having a more or less pronounced trough angle and mostly working in an intensive matter. Each disk is elastically clamped onto a rib or guard ring having a trapezoidal cross-section and integrally made with the carrier cord.

End sections of the roller are provided with roll bearings thereon having accommodated thereto coupling casings for hooking onto the conveyor support.

The disks happen to slide off the cord carrying them, especially after a certain period of time of alternate bending strain, and the efficiency of the device, which was considered until then as acceptable, could be improved.

Moreover, the manufacturing of this type of conveyor requires specific tooling for making in particularthe supple cord having a metallic web.

The object of this invention is to achieve the desired improvement while simplifying the manufacturing thereof. The band conveyor roller according to this invention is characterised in that it substantially comprises two kinds of parts for the manufacture thereof, namely supple spacers, and disks, the spacers and disks being assembled together simply by screwing.

The spacers manufacturable in mass production are made from a mouldable material.

Specifically, the spacers are made from low pressure injection polyurethane.

The disks may also be made from polyurethane by low pressure injection although the manufacturing thereof from metal or rubber would also be suitable with this kind of parts.

Each spacer comprises two threaded end sections of the same pitch and each disk has a theaded hub with a through-opening therein.

The sum of the lengths of both threaded end sections, one belonging to one spacer and the other belonging to another spacer, is higher than the length of the threaded opening in a disk hub thereby resulting in the end sections being spread apart on the hub through reciprocal action and blocked to the hub; the roller end spacers being themselves locked to the hooking casings acting as abutments.

Spacers and disks manufactured by mass production can be supplied in the form of a kit of equipment which groups together as desired the number of required parts of the required sizes to permit realization of a required conveyor roller.

Other characteristics and advantages of this invention will appear from the following description with reference to the attached drawings on which: Figure 1 is a cross-sectional elevational view of a band conveyor roller according to this invention, and Figure 2 is a cross-sectional elevational view on a smaller scale of a band conveyor roller according to the invention with its casings hooking on the conveyor support.

In the exemplifying form of embodiment shown, a band conveyor roller according to the invention substantially comprises supple spacers 1 and disks 2, assembled together simply by screwing.

The supple spacers 1 are manufactured in mass production and are made from a mouldable material advantageously a low pressure injection polyurethane.

The disks 2 can also be made from low pressure injection polyurethane. They can however be also manufactured from metal or rubber.

Each spacer comprises two integrally made threaded end sections 3 of the same pitch respectively screwable into the hub 4 of a disk, with each disk having a hub 4 with a threaded through-opening wherein.

Two threaded end portions 3, one belonging to a spacer and the other to another spacer, meet in the threaded through-opening 5 of a disk 2 so as to be mutually locked within such opening. As a matter of fact, the length of each end section and the length of the opening 5 in the disk are selected such that the sum of the lengths of both end sections is higher than the length of opening 5, thereby locking the end sections within the opening.

The roller comprises two end spacers 6, each intended for providing connection between a disk 2 and a casing 7 for hooking to the conveyor support, and blocking themselves against such casings constituting an abutment (Figure 2). Such end spacers 6 are provided with a threaded end section 3 screwable into opening 5 in the hub of a disk 2 and an end section 8 for receiving the roll bearings hooking casing. The end spacers are also manufactured from low pressure injection polyurethane.

The spacers 1 are of different lengths depending on their positioning along the roller length, to be able to cope with the selected trough angle.

The spacers 1 whatever their length and the disks 2 whatever their diameters and widths are provided so as to be available in kit equipments with the desired number and sizes to permit as required the realization of a required band conveyor roller.

It will be understood that this invention was only described and represented in an exemplifying form of embodiment and that equivalent parts can be substituted for its constituents without however departing from its scope.

Thus, the spacers can be provided with collars 1A for spacers 1 and a shoulder 6A for each end spacer 6.

1. A band conveyor roller having end casings for hooking on a conveyor support, comprising two kinds of parts for the manufacture thereof, namely supple spacers reproducible by mass production from a mouldable material, and disks, the spacers and disks being assembled together simply by screwing.

2. A band conveyor roller according to Claim 1,

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A band conveyor roller This invention relates to a band conveyor roller. Band conveyors are known, of the type comprising rollers constituted by disks disposed on a supple cord itself carried by a web consisting of a cable made of metal or any other material. This type of roller is intended for fitting through conveyors having a more or less pronounced trough angle and mostly working in an intensive matter. Each disk is elastically clamped onto a rib or guard ring having a trapezoidal cross-section and integrally made with the carrier cord. End sections of the roller are provided with roll bearings thereon having accommodated thereto coupling casings for hooking onto the conveyor support. The disks happen to slide off the cord carrying them, especially after a certain period of time of alternate bending strain, and the efficiency of the device, which was considered until then as acceptable, could be improved. Moreover, the manufacturing of this type of conveyor requires specific tooling for making in particularthe supple cord having a metallic web. The object of this invention is to achieve the desired improvement while simplifying the manufacturing thereof. The band conveyor roller according to this invention is characterised in that it substantially comprises two kinds of parts for the manufacture thereof, namely supple spacers, and disks, the spacers and disks being assembled together simply by screwing. The spacers manufacturable in mass production are made from a mouldable material. Specifically, the spacers are made from low pressure injection polyurethane. The disks may also be made from polyurethane by low pressure injection although the manufacturing thereof from metal or rubber would also be suitable with this kind of parts. Each spacer comprises two threaded end sections of the same pitch and each disk has a theaded hub with a through-opening therein. The sum of the lengths of both threaded end sections, one belonging to one spacer and the other belonging to another spacer, is higher than the length of the threaded opening in a disk hub thereby resulting in the end sections being spread apart on the hub through reciprocal action and blocked to the hub; the roller end spacers being themselves locked to the hooking casings acting as abutments. Spacers and disks manufactured by mass production can be supplied in the form of a kit of equipment which groups together as desired the number of required parts of the required sizes to permit realization of a required conveyor roller. Other characteristics and advantages of this invention will appear from the following description with reference to the attached drawings on which: Figure 1 is a cross-sectional elevational view of a band conveyor roller according to this invention, and Figure 2 is a cross-sectional elevational view on a smaller scale of a band conveyor roller according to the invention with its casings hooking on the conveyor support. In the exemplifying form of embodiment shown, a band conveyor roller according to the invention substantially comprises supple spacers 1 and disks 2, assembled together simply by screwing. The supple spacers 1 are manufactured in mass production and are made from a mouldable material advantageously a low pressure injection polyurethane. The disks 2 can also be made from low pressure injection polyurethane. They can however be also manufactured from metal or rubber. Each spacer comprises two integrally made threaded end sections 3 of the same pitch respectively screwable into the hub 4 of a disk, with each disk having a hub 4 with a threaded through-opening wherein. Two threaded end portions 3, one belonging to a spacer and the other to another spacer, meet in the threaded through-opening 5 of a disk 2 so as to be mutually locked within such opening. As a matter of fact, the length of each end section and the length of the opening 5 in the disk are selected such that the sum of the lengths of both end sections is higher than the length of opening 5, thereby locking the end sections within the opening. The roller comprises two end spacers 6, each intended for providing connection between a disk 2 and a casing 7 for hooking to the conveyor support, and blocking themselves against such casings constituting an abutment (Figure 2). Such end spacers 6 are provided with a threaded end section 3 screwable into opening 5 in the hub of a disk 2 and an end section 8 for receiving the roll bearings hooking casing. The end spacers are also manufactured from low pressure injection polyurethane. The spacers 1 are of different lengths depending on their positioning along the roller length, to be able to cope with the selected trough angle. The spacers 1 whatever their length and the disks 2 whatever their diameters and widths are provided so as to be available in kit equipments with the desired number and sizes to permit as required the realization of a required band conveyor roller. It will be understood that this invention was only described and represented in an exemplifying form of embodiment and that equivalent parts can be substituted for its constituents without however departing from its scope. Thus, the spacers can be provided with collars 1A for spacers 1 and a shoulder 6A for each end spacer 6. CLAIMS

2. A band conveyor roller according to Claim 1, wherein the spacers are made from low pressure injection polyurethane.

3. A band conveyor roller according to Claim 1 or Claim 2, wherein the disks are also manufactured from low pressure injection polyurethane.

4. A band conveyor roller according to any one of Claims 1 to 3, wherein each spacer comprises two integrally made threaded end sections of the same pitch, screwable into the hub of a disk, with each disk comprising a hub with a threaded through-opening therein.

5. A band conveyor roller according to Claim 4, wherein the length of each end section and the length of the opening in a disk are selected such that the sum of the lengths of two end sections meeting within said opening, with the one belonging to one spacer and the other belonging to another spacer, is higher than the length of the opening, thereby resulting in the end sections being mutually locked by spreading within the opening.

6. A band conveyor roller according to any one of Claims 1 to 5, comprising two end spacers, each for providing connection between a disk and a casing for hooking onto the conveyor support, said end spacers being fitted with a threaded end portion screwable into the opening in a disk hub and an end section for receiving the roll bearing hooking casing constituting an abutment.

7. A band conveyor roller according to any one of Claims 1 to 6, wherein the spacers, whatever their lengths, and the disks, whatever their diameters and widths, are provided so as to be available in kit equipments.

8. A band conveyor roller substantially as herein described with reference to the accompanying drawings.