US 6,642,510 B1Granted

Photoelectric switch device having a detection result indicator disposed between a top and rear wall

AssigneeKeyence Corporation

InventorsKazutoshi Sugiyama, Koji Fukumura

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Abstract

A photoelectric switch device for detecting an object within a field of detection on the basis of a position of the object is presented. The position is determined on the basis of a value relating to light that is reflected by the object. The photoelectric switch device has a light projecting and receiving optical arrangement disposed on a front wall of a box shaped casing, a display unit and a push type of adjusting switch disposed on a rear wall of the box shaped casing. The photoelectric switch device also has a push type of selecting fixing setting switch and an indicator disposed on one of walls of the box shaped casing, except the front and rear walls, and an output cable extending from a corner between the rear wall and another wall opposite to the one wall. The selecting fixing setting switch is used to select types of information that is to be displayed on the display unit in order to set and fix the value. The adjusting switch is used to adjust the value of information displayed on the display unit.

Claims13

Dependent claims

A photoelectric switch device for detecting a presence or an absence of an object in a specified field of detection, which has at least a photoelectric means for receiving light from the field of detection and generating an electric signal of a level representing an amount of light received thereby and processing means for processing the electric signal from said photoelectric means, for making a determination of the presence or the absence of the object in the field of detection on the basis of a comparison of the level of the electric signal from said photoelectric means with a specified threshold and providing an electric signal representing a result of the determination, said photoelectric switch device comprising:

a generally rectangular-parallelepiped box casing defined by a plurality of walls in which said photoelectric means and said processing means are installed;
optical means disposed on a front wall of said generally rectangular-parallelepiped box casing for directing light from the field of detection to said photoelectric means;
display means disposed on a rear wall of said generally rectangular-parallelepiped box casing opposite to said front wall and operatively connected to said processing means for providing a display of at least one of the specified threshold and the level of the electronic signal from said photoelectric means;
adjusting means disposed on said rear wall and operatively connected to said processing means for selecting one of the specified threshold arid the level of the electronic signal from said photoelectric means to be displayed on said display means and adjusting the specified threshold while the specified threshold is displayed on said display means;
and
detection result indicator means disposed between said rear wall and a top wall of said generally rectangular-parallelepiped box casing connecting said top wall and said rear wall to each other and operatively connected to said processing means for indicating the result of the determination.

3 more elements

a generally rectangular-parallelepiped box casing defined by a plurality of walls in which said photoelectric means and said processing means are installed;
optical means disposed on a front wall of said generally rectangular-parallelepiped box casing for directing light from the field of detection to said photoelectric means;
display means disposed on a rear wall of said generally rectangular-parallelepiped box casing opposite to said front wall and operatively connected to said processing means for providing a display of at least one of the specified threshold and the level of the electronic signal from said photoelectric means;
adjusting means disposed on said rear wall and operatively connected to said processing means for selecting one of the specified threshold and the level of the electronic signal from said photoelectric means to be displayed on said display means and adjusting the specified threshold while the specified threshold is displayed on said display means;
and
means for indicating a detection result disposed on said generally rectangular-parallelepiped box casing adjacent to a top wall and said rear wall and said means for indicating the detection result being operatively connected to said processing means for indicating the result of the determination.

3 more elements

a generally rectangular-parallelepiped box casing defined by a plurality of walls in which said photoelectric means and said processing means are installed;
optical means disposed on a front wall of said generally rectangular-parallelepiped box casing for directing light from the field of detection to said photoelectric means;
display means disposed on a rear wall of said generally rectangular-parallelepiped box casing opposite to said front wall and operatively connected to said processing means for providing a display of at least one of the specified threshold and the level of the electronic signal from said photoelectric means;
adjusting means disposed on said rear wall and operatively connected to said processing means for selecting one of the specified threshold and the level of the electronic signal from said photoelectric means to be displayed on said display means and adjusting the specified threshold while the specified threshold is displayed on said display means;
and
means for indicating a detection result disposed on said generally rectangular-parallelepiped box casing in a location substantially between a top wall and said rear wall and said means for indicating the detection result being operatively connected to said processing means for indicating the result of the determination.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/635,710Filed 9 Aug 2000
Priority: JP 2000-00705814 Jan 2000
Granted: 4 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G01S 17/48
Indirect determination of position data: active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other…
G01S 7/4813
Common to transmitter and receiver: housing arrangements
G01S 17/04
Systems using the reflection of electromagnetic waves other than radio waves: systems determining the presence of a target
G01V 8/12
Detecting, e.g. by using light barriers: using one transmitter and one receiver