Low inertia article-diverter blade

• US 5,918,724 A
• Filed: 12/30/1997
• Issued: 07/06/1999
• Est. Priority Date: 12/30/1997
• Status: Expired due to Term

• Current Assignee: Sandvik Sorting Systems Inc.
• Original Assignee: Sandvik Sorting Systems Inc.
• Inventors: Terrell, Jonathan Dean, Ydoate, Edward
• Primary Examiner(s): Valenza, Joseph E.
• Assistant Examiner(s): DILLON JR, JOSEPH A
• Application Number:
  US09/001,187
• Time in Patent Office: 553 Days
• Field of Search: 198/367, 198/370.07, 198/342, 198/598, 198/599, 198/636, 198/637
• US Class Current: 198/367
• CPC Class Codes: B65G 47/766 Adjustable ploughs or transverse scrapers

Abstract

A diverter blade for displacing articles from a conveying surface includes a motor-driven, torque-transmitting metallic section, and a plastic section integrally molded to the metallic section. Portions of the metallic section are embedded within the plastic section to reinforce the plastic section and transmit torque thereto. The plastic section forms an article-contacting front wall, and includes diagonal reinforcing braces on a rear side of the front wall.

Claims

1. A diverter blade adapted to be rotated to displace articles from a conveying surface, comprising:

a metallic section adapted to be connected to a drive motor for transmitting torque therefrom, the metallic section including a rotary mounting portion defining a rotary axis, and at least one torque-transmitting member projecting from the mounting portion at angle relative to the axis; and

a plastic section molded of a plastic material integrally with the metallic section to envelop the torque transmitting member, the plastic section including an article-contacting front wall.

2. The diverter blade according to claim 1 wherein the mounting portion of the metallic section comprises a shaft, a portion of the shaft disposed between opposite ends thereof being encompassed by the plastic section.

3. The diverter blade according to claim 1 wherein the torque-transmitting member includes through-holes in which the plastic material is disposed to interlock the torque-transmitting member to the plastic section by an interference-fit.

4. The diverter blade according to claim 1 wherein the plastic section includes a width dimension which gradually tapers-down toward a free end of the plastic section situated remotely of the rotary axis.

5. The diverter blade according to claim 1 wherein the plastic section includes diagonal reinforcing members.

6. The diverter blade according to claim 1 wherein the plastic section is formed of a polymer.

7. The diverter blade according to claim 1 wherein the metallic section includes a plurality of the torque-transmitting members extending parallel to one another;

the plastic section enveloping at least one of the torque-transmitting members.

8. The diverter blade according to claim 7 wherein one of the torque-transmitting members has first and second portions extending in different directions from the shaft, the first section embedded in the plastic section, and the second portion being exposed and including a connector adapted for attachment to a drive motor.

9. The diverter blade according to claim 1 wherein the metallic section is formed of carbon steel.

10. The diverter blade according to claim 6 wherein the polymer is polyurethane.

11. A diverter blade adapted to be rotated to displace articles from a conveying surface, comprising:

a metallic section adapted to be connected to a drive motor for transmitting torque therefrom, the metallic section including a rotary shaft defining an axis of rotation, and a plurality of torque-transmitting members extending perpendicularly from the shaft and parallel to one another; and

a plastic section molded of a plastic material integrally with the metallic section to envelop the torque-transmitting members and a portion of the shaft situated between opposite ends of the shaft, the plastic section including an article-contacting front wall and diagonal braces disposed on a rear surface of the front wall, the plastic section including a width dimension which gradually tapers-down toward a free end of the plastic section situated remotely of the rotary axis.

12. A conveying mechanism comprising:

a conveyor having an upwardly facing conveying surface for conveying articles to respective discharge stations;

diverter blades disposed at respective discharge stations for contacting and transferring the articles to the discharge stations, each diverter blade comprising;

a metallic section including a rotary mounting portion mounted for rotation about a rotary axis, at least one torque-transmitting member projecting from the mounting portion at an angle relative to the axis, and a motor-connecting member projecting perpendicularly from the mounting portion, and

a plastic section molded of a plastic material integrally with the metallic section to envelop the torque-transmitting member, the plastic section including an article-contacting front wall; and

a motor connected to the motor-connecting member for rotating the metallic section about the axis, whereby the rotation is transmitted to the plastic section by the torque-transmitting member.