Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se
Reexamination Certificate
2003-09-10
2004-11-09
Sells, James (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Presses or press platen structures, per se
C156S580000
Reexamination Certificate
active
06814126
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a labeling machine and, more specifically, to a sheet member impression structure for use in a labeling machine to keep a transferring sheet member smooth.
2. Description of the Related Art
FIG. 1
shows a pair of sheet member impression devices
1
a
mounted on a rod member
2
a
and locked by a respective tightening up screw
3
a
to impart a downward pressure to a pressure board
4
a
, keeping the sheet member Sa being transferred beneath the pressure board
4
a
smooth. The pitch between the sheet member impression devices
1
a
is determined subject to the size of the sheet member
5
a
. Each sheet member impression device
1
a
comprises a cylindrical casing
11
a
, a cap
12
a
located on the top side of the cylindrical casing
11
a
, a spring member
13
a
mounted inside the cylindrical casing
11
a
, and a pressure tip
14
a
provided at the bottom side of the spring member
13
a
and extended out of the bottom side of the cylindrical casing
11
a
. The cylindrical casing
11
a
has two axle holes
11
a
transversely aligned at two sides near the cap
12
a
and a bottom opening
112
a
. The diameter of the axle holes
11
a
fits the outer diameter of the rod member
2
a
so that the cylindrical casing
11
a
can be firmly secured to the rod member
2
a
. The diameter of the bottom opening
112
a
is smaller than the inner diameter of the cylindrical casing
11
a
. The pressure tip
14
a
passes through the bottom opening
112
a
to the outside of the cylindrical casing
11
a
. The spring member
13
a
is adapted to adjust downward pressure of the sheet member impression device
1
a
. The pressure tip
14
a
is pressed on the pressure board
4
a
, controlling smooth transfer of the sheet member
5
a.
The sheet member impression devices
1
a
are spaced from each other at a distance so that a downward pressure can be evenly applied to the pressure board
4
a
, keeping the transferring sheet member
5
a
smooth. When a different size of sheet member is used, the pitch between the two sheet member impression devices
1
a
must be properly adjusted.
When adjusting the position of each sheet member impression device
1
a
, a tool, for example, a screwdriver shall be used to unfasten the tightening up screw
3
a
, for enabling the respective sheet member impression device
1
a
to be moved along the rod member
2
a
to the desired position. This pitch adjustment procedure is complicated.
Further, because the contact between each sheet member impression device
1
a
and the pressure board
4
a
is a point contact, downward pressure may not be evenly applied from the sheet member impression devices
1
a
to the pressure board
4
a.
SUMMARY OF THE INVENTION
The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a sheet member impression device for labeling machine, which provides a line contact to apply a downward pressure to the pressure board in the labeling machine evenly, keeping the transferring sheet member smooth.
To achieve this and other objects of the present invention, the sheet member impression structure comprises a rod member, and two sheet member impression devices mounted on the rod member and respectively pressed on a pressure board to smooth a sheet member being transferred beneath the pressure board. Each sheet member impression device comprises a casing mounted on the rod member, the casing comprising an inside space, two through holes aligned at two sides in communication with the inside space and adapted to accommodate the rod member, a side opening, and a bottom hole; an adjustment unit mounted in the inside space inside the casing below the rod member and partially extended out of the side opening of the casing for operation by the user to adjust the position of the casing on the rod member; a spring member mounted in the inside space inside the casing below the adjustment unit; and a press member mounted in the inside space inside the casing and supported on a bottom side of the spring member and partially extended out of the bottom hole of the casing and forced by the spring member to press on the pressure board.
REFERENCES:
patent: 3861512 (1975-01-01), Coriasco et al.
patent: 5379692 (1995-01-01), Haug
patent: 5711846 (1998-01-01), Alicea
patent: 6695501 (2004-02-01), Nedblake et al.
Pro-Techtor Inter-national Services
Sells James
Taiwan Semiconductor Co., Ltd.
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