The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 1986
Filed:
Jun. 28, 1985
Aisin Seiki Kabushiki Kaisha, , JP;
Abstract
A pantograph jack apparatus for elevating a motor vehicle includes first and second upper arms pivotally connected to a supporting plate engageable with the motor vehicle and first and second lower arms pivotally connected to a base plate supporting the jack apparatus at ground level. The first upper arm and first lower arm are pivotally connected to a threaded connecting nut that is threaded on the threaded portion of a shaft member. The second upper arm and second lower arm are pivotally connected to a connecting bearing rotatably mounted on the non-threaded portion of the shaft member. The connecting bearing is axially movable on the shaft member between two stop portions so that, when the connecting bearing abuts against the first stop portion, the jack is in its lowered position for storage and, when the connecting bearing abuts against the second stop portion, the jack is raised to a position where it is engageable with a jacking portion of the motor vehicle body. Thus, the jack can be raised to engage the motor vehicle body without rotating the shaft member. The pantograph jack apparatus also is provided with a mechanism for preventing the jack from being lowered by gravity after it has been raised to engage the motor vehicle body.