# US 8,872,387 B2 · Non-contact selection switch

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- Number: US 8,872,387 B2
- Document ID: US8872387B2
- Status: Granted
- Kind: B2
- Application number: 13/261,714
- Filed: 2011-11-03
- Published: 2014-03-06
- Granted: 2014-10-28
- Earliest claimed: 2011-11-03
- Applicants: Il Shik Yoon
- Inventors: Il Shik Yoon
- Web page: https://patentgrep.com/patent/US8872387B2

## CPC

- H03K 17/00: Electronic switching or gating, i.e. not by contact-making and –breaking (gated amplifiers H03F3/72; switching arrangements for exchange systems using static devices H04Q3/52)
- B66B 1/2408: {where the allocation of a call to an elevator car is of importance, i.e. by means of a supervisory or group controller}
- B66B 1/461: {characterised by their shape or profile}
- B66B 1/463: {Touch sensitive input devices}
- B66B 1/468: {Call registering systems}
- H03K 17/943: {using a plurality of optical emitters or detectors, e.g. keyboard}
- H03K 17/9629: {using a plurality of detectors, e.g. keyboard}
- H03K 17/9631: {using a light source as part of the switch}
- B66B 2201/4638: Wherein the call is registered without making physical contact with the elevator system
- H03K 2217/94111: having more than one emitter
- H03K 2217/94112: having more than one receiver
- H03K 2217/94114: Optical multi axis
- H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)
- B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00)

## Abstract

The present invention relates to a non-contact switch which is used for an elevator or general automatic doors, and comprises: buttons B including a push button or an optical sensor button for selecting an elevator movement or opening an automatic door; a pair of long sensor blocks 10, which are installed adjacent to or above the push button and arranged so as to face each other with a gap 12 equivalent to the width of one to two human fingers therebetween; and a plurality of sensors S which are installed in a single file on the surfaces of the sensor blocks that face each other, wherein a sensor detects movement of a human finger moving with the gap 12 at or above a predetermined length or at or above a predetermined speed and selects an upward or downward movement for a destination floor for the elevator or opens the automatic door.

## Claims

### Claim 1

A non-contact selection switch installed beside an elevator door of a building hallway to select upward movement, downward movement, or a destination floor of an elevator or installed beside an automatic door to open the automatic door which is automatically opened and closed, the switch comprising:
a pair of long sensor block sets 10 disposed to face each other with a gap 12 as thick as two to three human fingers F; and
a plurality of sensors S installed in line on surfaces of the sensor blocks facing each other,
wherein when the human finger F moves with the gap 12, the sensors S sense a direction, a length, and a speed of the finger F that moves.

### Claim 2 (depends on 1)

The non-contact selection switch of claim 1, wherein buttons B including a push button or an optical sensor button, which actuate the elevator or the automatic door when the buttons are pressed by the human finger, are disposed around, that is, beside, above, or below the sensor block sets 10.

### Claim 3 (depends on 2)

The non-contact selection switch of claim 2, wherein the plurality of buttons B is provided and the sensor block sets 10 are arranged beside the respective buttons B one by one.

### Claim 4 (depends on 3)

The non-contact switch of claim 3, wherein each of the plurality of sensor block sets 10 is not parallel to the sensor block set facing each sensor block set 10 and forms an angle to be disposed in a V shape.