Identification module for key making machine

Patent metadata

Field	Value
Publication number	US-10301844-B2
Application number	US-201715711748-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Aug 16, 2013
Publication date	May 28, 2019
Grant date	May 28, 2019

Abstract

An identification module is disclosed for use in a key making machine. The identification module may have a key receiving assembly configured to receive only a shank of an existing key. The identification module may also have a tip guide, configured to receive a tip of the shank of the existing key. The tip guide may have a slot that exposes a tip end of the shank. The identification module may also have an imaging assembly configured to capture an image of the tip end through the slot.

First claim

What is claimed is:

1. An identification module for a key making system, comprising:
a key receiving assembly configured to receive only a shank of an existing key;
a tip guide configured to receive a tip of the shank of the existing key, the tip guide having a slot that exposes a tip end of the shank,
wherein the tip guide is linearly movable by insertion of the existing key from a first location adjacent the slot to a second location away from the slot;
at least one sensor associated with the tip guide and configured to indicate motion of the tip guide away from the first location and cessation of the motion at the second location; and
an imaging assembly configured to capture an image of the tip end through the slot, wherein:
the identification module is selectively activated based on the motion of the tip guide away from the first location; and
the imaging assembly is selectively triggered to capture the image of the tip end of the existing key based on the cessation of motion.

2. The identification module of claim 1 , further comprising a head guide configured to move a head of the existing key into centered alignment with the tip guide.

3. The identification module of claim 1 , further comprising a backlight, wherein: the image generated by the imaging assembly includes at least a backlight image; and the identification module is configured to make a classification of the existing key as an edge-cut key or a side-milled key based on the backlight image.

4. The identification module of claim 3 , wherein the key identification module is further configured to selectively measure characteristics of the existing key based on the classification without removal of the existing key from the key receiving assembly.

5. The identification module of claim 3 , wherein the imaging assembly includes:
at least one side light configured to direct light toward a primary surface of the existing key in a direction substantially oblique to the primary surface; and
a camera configured to generate the backlight image while the back light is turned on, and generate a sidelight image when the at least one side light is turned on.

6. The identification module of claim 5 , wherein the identification module is further configured to:
determine edge geometry of the existing key based on the backlight image; and
determine side mill geometry of the existing key based on the sidelight image.

7. The identification module of claim 6 , wherein:
the at least one side light includes two side lights; and
the camera is configured to generate the sidelight image while the two side lights are separately turned on at different times.

8. The identification module of claim 7 , wherein:
the imaging assembly further includes a laser configured to generate laser stripes on the existing key;
the camera is configured to generate multiple laser stripe images while the laser is turned on; and
the identification module is further configured to create a composite laser stripe image of the existing key based on the multiple laser stripe images.

9. The identification module of claim 5 , further comprising a removable cover located between the back light and the existing key when the existing key is received within the key receiving assembly.

10. The identification module of claim 9 , wherein:
the removable cover is translucent; and
the removable cover is accessible from a side of the identification module also having the key receiving assembly.

11. The identification module of claim 1 , further comprising a transponder sensor located adjacent the key receiving assembly.

12. The identification module of claim 11 , wherein the transponder sensor is configured to detect existence of a transponder within the existing key.

13. The identification module of claim 12 , wherein the transponder sensor is configured to read information from the transponder as the existing key is being received by the key receiving assembly.

14. The identification module of claim 1 , wherein the tip guide is sloped at the location of the slot.

15. The identification module of claim 14 , wherein the degree of the slope corresponds with an incident angle of light emitted by the imaging assembly.

16. The identification module of claim 1 , wherein the tip guide is tilted downward toward the shank of the existing key as the existing key is being received by the key receiving assembly.

17. The identification module of claim 16 , wherein the tip guide is tilted downward at an angle of about 2 to 3 degrees.

18. A method of imaging an existing key, comprising:
receiving from a user only a shank of the existing key into a key receiving assembly;
guiding a tip end of the shank to a desired location with a tip guide having a slot that exposes the tip end of the shank, wherein the tip guide is linearly movable by insertion of the existing key from a first location adjacent the slot to a second location away from the slot;
sensing motion of the tip guide away from the first location and cessation of motion at the second location with at least one sensor associated with the tip guide; and
capturing a backlight image of a tip end of the shank with a camera through the slot in the tip guide, wherein the camera is selectively triggered to capture the image based on the cessation of motion.

Assignees

• Hillman Group Inc

Inventors

• Grice Byron Keith
• Gerlings Phillip
• Campbell John Clayton
• Schmidt Michael James

Classifications

• E05B19/14 Primary

  Double {or multiple} keys {, e.g. with two or more bows or bits (see also E05B35/14)} · CPC title

• B23P15/005 Primary

  keys (making keys without essentially removing material, e.g. by punching B21D53/42; milling grooves in keys B23C3/35) · CPC title

• H04N23/74

  by influencing the scene brightness using illuminating means · CPC title

• E05B19/04

  Construction of the bow {or head} of the key; Attaching the bow to the shank · CPC title

• G06Q20/14

  specially adapted for billing systems · CPC title