Supports – Stand – Tilting support surface
Reexamination Certificate
1999-03-18
2001-11-20
King, Anita (Department: 3632)
Supports
Stand
Tilting support surface
C248S178100, C248S663000
Reexamination Certificate
active
06318694
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a support device for supporting an electronic device obliquely and pivotally.
2. Description of the Related Art
Japanese Unexamined Patent Publication No. 4-208985 discloses a tilt mechanism used for a display device. In this tilt mechanism, a convex surface of a convex portion, which is formed into an arc-shape, is supported by a member, the friction coefficient of which is low. Therefore, a main display body can be tilted in the upward and downward direction. However, this mechanism is not provided with a function of rotating or revolving the main display body.
Japanese Unexamined Patent Publication No. 58-14887, which corresponds to the U.S. Pat. No. 4,591,120, discloses a support capable of tilting and rotating, comprising: an upper member (platform) having a convex engagement surface; and a base member having a concave engagement surface, the concave engagement surface agreeing with the convex engagement surface, wherein the platform is locked when a shaft penetrating both engagement surfaces are pushed down.
However, the above support is disadvantageous as follows. Irrespective of a state of lock or unlock, both engagement surfaces are substantially contacted with each other at all times. Therefore, a tilting motion and rotating motion can not be conducted smoothly.
SUMMARY OF THE INVENTION
The present invention provides a support device by which the above problems of the prior art can be solved.
In order to solve the above problems, the present invention provides a support device for supporting an electronic device obliquely and pivotally having an upper member and a base member, comprising: a convex engagement surface provided on one of the upper member and the base member; a concave engagement surface provided on the other of the upper member and the base member, the profile of the concave engagement surface agreeing with the convex engagement surface; and a drive mechanism for transferring a state of engagement of the convex engagement surface with the concave engagement surface from a frictional engagement state to a disengagement state. Preferably, the support device further comprises a perpendicular shaft penetrating both engagement surfaces, wherein the upper member and the base member can be relatively rotated round an axis of the perpendicular shaft. Preferably, the support device further comprises a horizontal shaft arranged in an upper portion of the perpendicular shaft, wherein the upper member and the perpendicular shaft can be relatively rotated round an axis of the horizontal shaft. Preferably, the drive mechanism can move the perpendicular shaft in the upward direction for transferring a state. Preferably, the drive mechanism includes a plate cam. Preferably, the drive mechanism includes a translation cam. Preferably, the drive mechanism includes a lever.
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Fujitsu Limited
King Anita
Staas & Halsey , LLP
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