Corner rack

Patent metadata

Field	Value
Publication number	US-10281015-B2
Application number	US-201615185496-A
Country	US
Kind code	B2
Filing date	Jun 17, 2016
Priority date	Jun 17, 2016
Publication date	May 7, 2019
Grant date	May 7, 2019

Abstract

The invention is a corner rack with one front face that has teeth. A corner rack is a linear gear interface that can be placed in corners, such that the teeth face out from the corner at an angle, rather than running parallel with the walls. The teeth of the corner rack have a profile that can engage with the profile of a silent chain. The combination of the corner rack and silent chain allows an attached motor to be distanced from the corner rack, so that a lifting device driven by the corner rack and silent chain can be placed in and utilized in corners. This leads to increased versatility and efficiency.

First claim

The invention claimed is:

1. A transmission system comprising:
a silent chain having a first row of link plate and a second row of link plate, each link plate in the first row of link plates comprising first link plate teeth and each link pate in the second row of link plates comprising second link plate teeth, wherein the first link plate teeth and the second link plate teeth having different shape profile with repect to each other;
a corner rack, the corner rack comprising a front face, the front face comprising teeth, the teeth comprising a profile that engages with the silent chain;
a set of gears that bends the silent chain as the silent chain enters the teeth of the corner rack, that draws the chain straight to engage the first link plate teeth and the second link plate teeth with the teeth of the corner rack, and that bends the silent chain as the silent chain exits the teeth of the corner rack,
wherein the first link plate teeth and the second link plate teeth are longitudinally offset with respect to each other when the silent chain is strenghtened, and
wherein a tooth of the first link plate teeth and a tooth of the second link plate teeth are longitudinally aligned with respect to each other at a bend as the silent chain is bent by the set of gears.

2. The transmission system of claim 1 , wherein the corner rack has a truncated cubic configuration, and parallel to the front face, a point where two back faces join at an angle formed by a corner in which the corner rack is mounted.

3. The transmission system of claim 1 , wherein the corner rack has a trapezoid configuration, and parallel to the front face, a flat face, and the flat face positioned in a corner.

4. The transmission system of claim 1 , wherein the corner rack has a cubic configuration, and the corner rack is displaced within and secured by a bracket with a truncated cubic configuration, and parallel to the front face of the corner rack, a point where two back faces of the bracket join at an angle formed by a corner in which the corner rack is mounted.

5. The transmission system of claim 1 , wherein the corner rack is tubular.

6. The transmission system of claim 1 , wherein a pitch measurement of the corner rack measures between about 0.345 and 0.79 inches.

7. The transmission system of claim 1 , wherein a pitch measurement of the corner rack measures between about 0.41 and 0.63 inches.

8. The transmission system of claim 1 , wherein a pitch measurement of the corner rack measures between about 0.48 and 0.58 inches.

9. The transmission system of claim 1 , wherein the teeth of the corner rack extend from a main body of the corner rack at an angle between about 90 and 130 degrees.

10. The transmission system of claim 1 , wherein the teeth of the corner rack extend from a main body of the corner rack at an angle between about 110 and 120 degrees.

11. The transmission system of claim 1 , wherein the teeth of the corner rack extend from a main body of the corner rack at an angle between 105 and 115 degrees.

12. The transmission system of claim 1 , wherein the teeth engage with the silent chain, such that the silent chain is driven along the track as a motor drives the silent chain.

13. The transmission system of claim 1 , wherein the silent chain comprises a plurality of link plates and a plurality of connecting pins.

14. The transmission system of claim 13 , wherein each link plate comprises at least four link plate teeth.

15. The transmission system of claim 1 , wherein the silent chain comprises stacked rows of link plates.

16. The transmission system of claim 1 , wherein the tooth of the first link plate teeth and the tpooth of the second link plate teeth fill a groove of the corner rack when the silent chain is straightened.

Assignees

• Hall Labs Llc

Inventors

• Hall David R
• Priddis Jackson
• Priddis Andrew
• Priddis Eimi

Classifications

• F16H55/08

  Profiling · CPC title

• B66B11/0045

  in the hoistway · CPC title

• F16H2019/0681

  the flexible member forming a closed loop · CPC title

• F16H19/04 Primary

  comprising a rack · CPC title

• F16H19/06

  comprising {flexible members, e.g. an} endless flexible member · CPC title