Non-contact actuated trigger apparatus for bar code laser scanner

• US 5,907,147 A
• Filed: 06/12/1997
• Issued: 05/25/1999
• Est. Priority Date: 04/02/1993
• Status: Expired due to Term

• Current Assignee: PTO (Safe Fleet Holdings LLC)
• Original Assignee: PTO (Safe Fleet Holdings LLC)
• Inventors: La, Chay
• Primary Examiner(s): PITTS, HAROLD I
• Application Number:
  US08/873,948
• Time in Patent Office: 712 Days
• Field of Search: 235/472, 235/462
• US Class Current: 235/472.01
• CPC Class Codes: A41D 19/0024 with accessories
• CPC Class Codes: G06K 7/10891 the scanner to be worn on a finger or on a wrist
• CPC Class Codes: H01H 2009/0221 the switches being fixed to the operator's hand, e.g. integrated in a glove or fixed to a ring

Abstract

The system, which is especially suitable for use as a bar code scanner trigger which allows for hands-free scanner operation and non-contact triggering of the scanner by the operator, in one embodiment, comprises a switch and a switch actuator, with the switch mounted proximate to a movable part of the body, and the switch actuator located on the movable part of the body, which part is movable so as to move the switch actuator and switch to within a predetermined proximity of one another and thereby actuate the switch, which will actuate the electronic equipment switched thereby. After the switch has been actuated, moving the part of the body with the switch actuator thereon so as to move the switch actuator and switch beyond a predetermined proximity of one another will deactuate the switch, and thereby deactivate the electronic equipment switched thereby. In an exemplary embodiment, the switch actuator is disposed upon a finger via a switch actuator mount in the form of a glove, and the switch is disposed upon the back of the hand at a point proximate to the finger so that extending a finger as in a pointing motion actuates the switch, thereby activating the equipment and further so that retracting the finger deactuates the switch. In other embodiments multiple switches and switch actuators may be used in conjunction with multiple fingers or digits, and/or with predetermined patterns or combinations of switch actuations required to activate the electronic equipment.

Claims

1. A system for initiating a function of a bar code scanner, said system comprising:

a magnetically-operated switch, electrically connected to said bar code scanner, for initiating said function of the bar code scanner, when actuated; and

a switch actuator;

said switch being actuated and said function being initiated when said switch and said switch actuator are brought within a predetermined proximity to each other without making contact.

2. The system as claimed in claim 1 wherein said switch actuator comprises a magnet.

3. The system as claimed in claim 1 wherein said switch actuator comprises a magnetic field generator.

4. The system as claimed in claim 3, further comprising a glove, worn on the hand and having receptacles for fingers, for carrying said switch and said switch actuator.

5. The system as claimed in claim 1 further comprising means for integrally mounting said switch with said bar code scanner.

6. The system as claimed in claim 5 wherein said switch is selected from the group consisting of a magnetic reed switch and a Hall-effect switch.

7. A bar code scanner having various functions, comprising:

a magnetically-operated switch, integrally mounted in said bar code scanner, for initiating one of said functions of the bar code scanner when actuated; and

a switch actuator;

said switch being actuated and said one function being initiated when said switch and said switch actuator are brought within a predetermined proximity to each other without making contact.

8. The bar code scanner as claimed in claim 7 wherein said switch actuator comprises a magnet.

9. The bar code scanner as claimed in claim 7 wherein said switch actuator comprises a magnetic field generator.

10. The bar code scanner as claimed in claim 9 wherein said switch is selected from the group consisting of a magnetic reed switch and a Hall-effect switch.

11. The bar code scanner as claimed in claim 7, wherein said one function comprises a trigger function for activating the bar code scanner.

12. The bar code scanner as claimed in claim 7, further comprising a glove, worn on the hand and having receptacles for fingers, for carrying said switch and said switch actuator.

13. The bar code scanner as claimed in claim 12, wherein said switch is disposed on a back side of said glove and said switch actuator disposed on a receptacles for one of said fingers.

14. The bar code scanner as claimed in claim 13, wherein said one function is initiated when said one finger is in a raised, straight position.

15. The bar code scanner as claimed in claim 13, wherein said one function is not initiated when said one finger is in a relaxed, curled position.

16. A system for initiating various functions of an electronic equipment, said system comprising:

at least one switch;

at least one switch actuator; and

a glove having receptacles for fingers for carrying said switch and said switch actuator, said switch disposed on a back side of said glove and said switch actuator disposed on one of said receptacles for fingers;

said switch being actuated when said switch and said switch actuator are brought within a predetermined proximity to each other without making contact.

17. The system as claimed in claim 16, wherein said at least one switch is magnetically-operated.

18. The system as claimed in claim 16, wherein one of said functions is initiated after a single actuation.

19. The system as claimed in claim 18, wherein one of said functions is initiated after a predetermined number of actuations within a predetermined time.

20. The system as claimed in claim 19, wherein said glove carries more than one said switch and more than one said switch actuator and wherein one of said functions is initiated after a predetermined combination of actuations among said switches.