Switch for a conveying line for transporting a laboratory diagnostic vessel carrier

Patent metadata

Field	Value
Publication number	US-11204360-B2
Application number	US-201815995209-A
Country	US
Kind code	B2
Filing date	Jun 1, 2018
Priority date	Jun 8, 2017
Publication date	Dec 21, 2021
Grant date	Dec 21, 2021

Abstract

A switch for a conveying line for transporting a laboratory diagnostic vessel carrier is presented. The conveying line comprises a first line portion and a second line portion. The switch comprises a curved first guiding surface and a second guiding surface. The switch is moveable between a first position, in which the laboratory diagnostic vessel carrier is transportable along the curved first guiding surface from the first line portion to the second line portion, and a second position, in which the laboratory diagnostic vessel carrier is further transportable along the second guiding surface on the first line portion. A switch assembly and a conveying line are also disclosed.

First claim

We claim:

1. A switch for conveying a laboratory diagnostic vessel carrier from a first line portion of a conveying line to a second line portion of the conveying line, the switch comprising:
a curved first guiding surface, wherein the curved first guiding surface is curved with a radius corresponding to a width of the first line portion; and
a second guiding surface, wherein the switch is moveable between a first position, in which the laboratory diagnostic vessel carrier is transportable continuously along the curved first guiding surface from the first line portion to the second line portion, and a second position, in which the laboratory diagnostic vessel carrier is further transportable continuously along the second guiding surface on the first line portion, wherein the second guiding surface is flush with a boundary of the first line portion, wherein the curved first guiding surface and the second guiding surface are configured to engage the laboratory diagnostic vessel carrier, and wherein the curved first guiding surface and/or the second guiding surface comprises a rib-shaped protrusion extending from the curved first guiding surface and/or the second guiding surface configured to engage the laboratory diagnostic vessel carrier.

2. The switch according to claim 1 , wherein the switch is configured to enter the first line portion in the first position and wherein the switch is configured to retract from the first line portion in the second position.

3. The switch according to claim 1 , wherein the second guiding surface is straight.

4. The switch according to claim 1 , wherein the curved first guiding surface is curved at an angle of 10° to 180°, wherein the angle is defined between a tangent to an input end of the curved first guiding surface and a tangent to an output end of the curved first guiding surface.

5. The switch according to claim 1 , wherein the curved first guiding surface and the second guiding surface each comprise an input end configured to face a transport direction of the first line portion and wherein the input ends of the curved first guiding surface and the second guiding surface are arranged adjacent to one another.

6. The switch according to claim 1 , wherein the switch is linearly moveable between the first position and the second position.

7. The switch according to claim 1 , wherein the curved first guiding surface is curved with a radius of 20 mm to 80 mm, wherein the radius is a radius of a curve which equals a radius of a circular arc which best approximates the curve.

8. The switch according to claim 1 , wherein the laboratory diagnostic vessel carrier is a single laboratory diagnostic vessel carrier.

9. A switch assembly, the switch assembly comprising:
a switch according to claim 1 ; and
a drive configured to move the switch between the first position and the second position.

10. The switch assembly according to claim 9 , wherein the drive comprises a stepping motor, a tooth rack, a tooth wheel and a linear gear, wherein the linear gear and the tooth wheel are connected to the stepping motor and wherein the tooth wheel engages with the tooth rack.

11. The switch assembly according to claim 9 , wherein the drive is configured to move the switch with a hub of 20 mm to 80 mm, wherein the hub is a length difference between a start position and an end position.

12. The switch assembly according to claim 9 , further comprising,
at least one light barrier configured to detect whether the switch is in the first position and/or configured to detect whether the switch is in the second position.

13. A conveying line for transporting a laboratory diagnostic vessel carrier, the conveying line comprising:
a first line portion;
a second line portion; and
a switch according to claim 1 .

14. A conveying line for transporting a laboratory diagnostic vessel carrier, the conveying line comprising:
a first line portion;
a second line portion; and
a switch assembly according to claim 9 .

Assignees

• Roche Diagnostics Operations Inc

Inventors

• Huber David
• Arnold Daniel

Classifications

• G01N35/04 Primary

  Details of the conveyor system {(G01N35/021 - G01N35/028 take precedence)} · CPC title

• G01N2035/0468

  converging, e.g. selecting carriers from multiple incoming streams · CPC title

• G01N2035/0467

  Switching points ("aiguillages") · CPC title

• G01N2035/0406

  Individual bottles or tubes · CPC title

• B65G2201/0261

  Puck as article support · CPC title