Device for centering and gripping, particularly of...

Chucks or sockets – Member applies axial force component

Reexamination Certificate

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Details

C279S002240, C279S133000, C294S097000

Reexamination Certificate

active

06199873

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a device for centering and gripping, particularly for automobile bodywork parts, of the type comprising a body with an actuating means and having centering and gripping means.
2. Description of the Related Art
In this technical field, there is commonly used as actuating means a hydraulic jack, a pneumatic jack, an electric jack or a remote actuating means that can transmit force by means of a cable or another suitable flexible connection means.
There are known means for positioning and centering, adapted to be inserted in an opening for positioning a metal sheet of automobile bodywork or a piece for automobile construction.
There is also known means for gripping and holding comprising a gripping or holding arm, whose blocked position is substantially perpendicular to the axis of pressure of the actuating means.
SUMMARY OF THE INVENTION
The invention has its object to improve the known technique, by providing a new device for simple and economical production ensuring simultaneously the centering and the gripping of a metal sheet or a piece for automobile bodywork.
The invention has for its object a device for centering and gripping, particularly for automobile bodywork parts, of the type comprising a body containing an actuating means adapted to actuate in combination at least one retractable gripping means and a centering member containing each retractable gripping member within said centering member, each gripping member having an end forming a hook extending radially outwardly and downwardly, characterized in that the device comprises mechanical means for return movement, connecting said actuating means to the centering and gripping members, so as to move the actuating means and the centering gripping members in a direction opposite to displacement of the centering member.
According to another characteristic of the invention:
the centering member has a conical upper engagement end, and an intermediate centering portion which is substantially cylindrical,
the pivoting of each gripping member is controlled by an axle secured to the centering member,
the axle secured to the centering member is movable relative to the body of the device,
the axle secured to the centering member is moved with a movement opposite that of the actuating means,
the device comprises self-blocking crampons,
the self-blocking crampons pivot about axles secured to the body of the device,
the self-blocking crampons coact with an intermediate floatingly mounted piece,
a movement of the axle is opposite to that of the actuating means, by means of a connecting rod pivotally mounted on a control square,
the control square is rotatably mounted on an axle secured to the body, and comprises an opening in which is positioned an axle indirectly connected to the actuating means.
The movement of the axle
10
is ensured, in a direction opposite to that of the actuating means
2
,
3
by means of a connecting rod
9
mounted pivotably on a control square
8
.
The control square
8
is rotatably mounted about an axle
8
a
secured to the body
1
, and comprises an opening in which is positioned an axle
7
b
indirectly connected to the actuating means
2
,
3
.


REFERENCES:
patent: 1947957 (1934-02-01), Tillman
patent: 2576741 (1951-11-01), Witek
patent: 2890053 (1959-06-01), Walker
patent: 2922657 (1960-01-01), Garrison et al.
patent: 3233908 (1966-02-01), Schwarzmayr et al.
patent: 5083352 (1992-01-01), Nakako
patent: 5562007 (1996-10-01), Seymour
patent: 297 18 643 (1997-12-01), None
patent: 2 733 930 (1996-11-01), None
patent: 2 757 437 (1998-06-01), None

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