US 4,458,446 AGranted

Safe remote-control door opening-and-closing device for an automotive vehicle

AssigneeNissan Motor Co., Ltd.

InventorsHaruo Mochida, Mikio Takeuchi

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Abstract

A safe remote-control door opening-and-closing device for an automotive vehicle by which the door can not be opened or the door now being opened is closed, even if the driver operates the door open switch, in the case where there exists an obstruction within a predetermined warning region near the vehicle door or around the vehicle. The safe remote-control door device according to the present invention comprises an obstruction sensor for detecting the presence of an obstruction, if any, and a switching unit for disconnecting the door open switch from the door driving device or for connecting the door open switch to the reverse revolution terminal of the driving device in order to close the door now being opened, in addition to a conventional remote-control door opening-and-closing device.

A safe remote-control door opening-and-closing device for an automotive vehicle for opening or closing a vehicle door from a remote position when there is no obstruction near or behind the vehicle, which comprises:

(a) a door open-and-close mechanism linked to the vehicle door for opening and closing the vehicle door;
(b) a driving device linked to said door open-and-close mechanism for driving said door open-and-close mechanism, said driving device being provided with a normal revolution terminal and a reverse revolution terminal;
(c) a door open switch connected in series with the normal revolution terminal of said driving device for operating said driving device, when closed, in the normal direction that the door is opened;
(d) a door close switch connected in series with the reverse revolution terminal of said driving device for operating said driving device, when closed, in the reverse direction that the door is closed;
(e) an obstruction sensor mounted on a vehicle body portion for detecting the presence of an obstruction within a warning region near the vehicle door prior to contact between the obstruction and the vehicle door and for outputting a first signal when said obstruction sensor detects no obstruction and a second signal when said obstruction sensor detects an obstruction;
and
(f) a switching unit having:
(1) a first contact connected to said door open switch;
and
(2) a second contact connected to the normal revolution terminal of said driving device, said first contact being closed to said second contact in response to the first signal from said obstruction sensor indicative of the absence of an obstruction within the warning range near the vehicle, and being opened from said second contact in response to the second signal from said obstruction sensor indicative of the presence of an obstruction within the warning range near the vehicle,
whereby the vehicle door can be opened, when said door open switch is closed, in the case of the absence of an obstruction, but not opened, even if said door open switch is closed, in the case of the presence of an obstruction.

8 more elements

Facts

Application

06/360,421Filed 22 Mar 1982

Priority

JP 56-7488220 May 1981

Granted

10 Jul 1984

Term ends

Not estimatedThe source records don’t support an estimate.

Classification14 codes

E05F 15/40
Power-operated mechanisms for wings: safety devices, e.g. detection of obstructions or end positions
E05F 15/43
Detection using safety edges: responsive to disruption of energy beams, e.g. light or sound
E05F 15/611
Using rotary electromotors: for swinging wings
G01S 15/88
Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems: sonar systems specially adapted for specific applications

Abstract

Claims15