Land vehicles: bodies and tops – Bodies – Door or window with specified vehicle feature
Reexamination Certificate
1999-11-30
2001-02-06
Pape, Joseph D. (Department: 3634)
Land vehicles: bodies and tops
Bodies
Door or window with specified vehicle feature
C049S026000, C049S028000, C318S468000
Reexamination Certificate
active
06183040
ABSTRACT:
This application is based on and claims priority under 35 U.S.C. § 119 with respect to Japanese Application No. 10(1998)-340533 filed on Nov. 30, 1998, the entire content of which is incorporated herein by reference.
FIELD OF THE INVENTION
The present invention generally relates to a vehicle door. More particularly, the present invention pertains to a device for preventing a sandwiched or pinched condition in a vehicle door.
BACKGROUND OF THE INVENTION
Sometimes a substance, device or a part of human body is held between the inner periphery of an opening area and a moving element or member (e.g., a vehicle window or door such as a sliding window or door) which is adapted to be moved for closing the opening area. To prevent damage of the substance or device, or injury to the part of the human body resulting from such a sandwiched condition, the moving member is designed to be reversed by operation of the drive device for preventing the sandwiched condition. Such a device is disclosed in, for example, Japanese Patent Laid-Open Publication No. Hei. 8-260810 published without examination on Oct. 8, 1996.
In this device, the sandwiched condition is recognized when a change of rotational speed of an electric motor which moves the moving member is found. When the moving body is in the form of a sun-roof, a power window pane, or a slide door which is mounted on a vehicle, when the vehicle runs on a rough road or a sloping road, the rotational speed of the motor changes, with the result that the moving body which is in the course of closing the opening area is reversed in spite of no fear of the sandwiched condition.
Accordingly, a need exists for a device for preventing the sandwiched condition for vehicles which is free from the foregoing drawback and disadvantage.
SUMMARY OF THE INVENTION
Considering the foregoing, the present invention provides a device for preventing a sandwiched or pinched condition that includes a first member provided with an opening, a second member opening and closing the opening area of the first member, and an electronic control device for detecting a sandwiched condition between the first member and the second member which is in movement at a speed for closing the opening area of the first member. The electronic control device detects the sandwiched condition when the deceleration side condition of the speed of the second member exceeds a threshold value which is obtained based on an acceleration side condition of the speed of the second member.
According to another aspect of the invention, a vehicular slide door apparatus includes a plurality of guide rails mounted on a lateral side of a vehicle body possessing an opening area, a slide door mounted on the guide rails for sliding movement in a lengthwise direction of the vehicle body between an open position in which access through the opening area is permitted and a closed position in which access through the opening area is prevented, and a drive device operatively associated with the slide door to move the slide door between the closed position and the open position, with the slide door moving at a speed having an acceleration side condition. An electronic control device detects a sandwiched condition between the slide door and a portion of the vehicle body during sliding movement of the slide door on the basis of a threshold value which is obtained based on the acceleration side condition of the speed of the slide door.
According to a further aspect of the invention, a vehicular slide door apparatus includes a slide door mounted on a lateral side of a vehicle body which possesses an opening area for sliding movement in a lengthwise direction of the vehicle body between an open position in which access through the opening area is permitted and a closed position in which access through the opening area is prevented, a drive device operatively associated with the slide door to move the slide door between the closed position and the open position, and an electronic control device that detects a sandwiched condition between the slide door and a portion of the vehicle body during sliding movement of the slide door. The electronic control device detects the sandwiched condition based on the speed of slide door.
REFERENCES:
patent: 5069000 (1991-12-01), Zuckerman
patent: 5557888 (1996-09-01), Ruchat et al.
patent: 5592060 (1997-01-01), Racine et al.
patent: 5616997 (1997-04-01), Jackson et al.
patent: 5836639 (1998-11-01), Kleefeldt et al.
patent: 6089649 (2000-07-01), Hamada et al.
patent: 8-260810 (1996-10-01), None
Fukumoto Ryoichi
Imaizumi Tomoaki
Itami Eiji
Ohhashi Masao
Suzuki Shintaro
Aisin Seiki Kabushiki Kaisha
Burns Doane , Swecker, Mathis LLP
Pape Joseph D.
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