Buckling device of a scanner head

Details Buckling device of a scanner head Buckling device of a scanner head

1999-11-24

2001-10-23

Rodriguez, Pam (Department: 3613)

Spring devices

Bendable along flat surface

Flexural support

C292S209000, C361S726000, C359S198100

Reexamination Certificate

active

06305676

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a buckling device of a scanning head, and especially to a fixing structure, wherein as a scanning head returns to its initial position, a swingable piece will cause a buckling effect.
BACKGROUND OF THE INVENTION
In the prior art, the buckling device of a scanning head serves to prevent any damage from the movement of a scanner during transport. Therefore, a safety lock is installed on the scanner for locking the scanning head to prevent shift. After transport, the lock must be released for normal operation. However, after the manufacturer assembles a finished product, it is locked for packaging. The user often does not know to unlock the lock, so that the scanner cannot be operated. This often causes a user to conclude that the scanner is defective and requests maintenance service by phone or returns the scanner. Moreover, after starting up the scanner, the motor may be left operating continuously such that it is destroyed. Therefore, the prior art buckling structure of a scanner with a safety lock is not suitable in practice, and an improved design is much needed.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide a buckling device of a scanning head. In accordance with the present invention, an elastic means serves to restore an optic module back to its original position. A carrying means serves to generate a buckling effect as the scanner leaves a contact surface. Conversely, as the scanner contacts a contact surface, the buckling of components is released automatically. Therefore, use of the scanner may occur conveniently without the need to open or close the scanner.
Therefore, the present invention provides a buckling device of a scanning head installed at an initial position of an optic module of the scanner. A slot is formed on the casing of a scanner for positioning and engagement by a swingable piece. Two lateral surfaces of the swingable piece are pivotally coupled to a pair of shaft grooves on the casing by respective projecting shafts. The swingable piece has an upper stopper for being inserted into an engagement hole of the optic module. The swingable piece is installed with a lower stopper and a sliding groove is installed on the casing. A gate is installed in the sliding groove. A hooking piece protrudes from one end of the sliding groove for hooking one end of a spring at one side of the gate; another end of the spring is connected to a hook portion at an end surface of the sliding rod passing through another side of the gate. A straight piece is buckled to a resisting surface at a bottom of the optic module. As the optic module returns to the initial position, the straight piece drives the sliding rod to move towards another side without hindering the lower stopper by a transverse piece so that the lower stopper is free to form a buckling effect.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawings.


REFERENCES:
patent: 5264956 (1993-11-01), Tzu-Chin
patent: 5769515 (1998-06-01), Chang
patent: 6026261 (2000-02-01), Peng
patent: 29915040 (1999-11-01), None

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