Roller type support frame structure

Details Roller type support frame structure Roller type support frame structure

2000-04-14

2002-06-18

King, Anita (Department: 3632)

Supports

Stand and bracket

Having adjustable bracket

C242S599300, C248S354300

Reexamination Certificate

active

06405981

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a roller type support frame that as a frame with two end pieces between which a roller is connected. One of the two end pieces has a threaded hole and the other end piece has a plain hole so that a core is easily and firmly connected between the two end pieces.
BACKGROUND OF THE INVENTION
A conventional roller type support frame for support a heavy and long object is disclosed in
FIGS. 1 and 2
and generally includes a frame
10
with a handle
100
extending from a mediated portion of the frame
10
. Two end pieces
101
are extending from the frame
10
and toward to an opposite direction of the handle
100
. Each end piece
101
has a semi-circular recess
102
and two threaded holes
103
defined in a top thereof wherein the semi-circular recess
102
is located between the two threaded holes
103
. Two caps
11
are respectively mounted to the tops of the two end pieces
101
by bolts
15
which extend through passages
111
in the caps
11
and. engaged with the threaded holes
103
. Each cap
11
has a semi-circular recess
110
defined in a bottom thereof so that two ends
120
of a core
12
are retained between the two semi-circular recesses
110
of the jointed cap
11
and the end piece
101
. Two bearings
13
are mounted to the core
12
and a sleeve
14
is mounted to the two bearings
13
. It takes a lot of manufacturing time to made the semi-circular recess
102
and the threaded holes
103
in each of the end pieces
101
. The two caps
11
are also incurred the same problems. Furthermore, the bolts
15
could be loosened from the end pieces
101
by vibration.
The present invention intends to provide a roller frame structure that has a simple structure and the core is firmly connected between the two end pieces.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a roller type support frame structure and comprising a body having a neck for being connected to a post. A first end piece and a second end piece respectively extend from the body. The first end piece has a threaded hole defined in a side facing the second end piece, and the second end piece has a hole defined therethrough. A core has a first end with a threaded outside and a second end of the core has an insertion section which is inserted into the hole of the second end piece. The threaded outside is engaged with the threaded hole in the first end piece. A sleeve is rotatably mounted to the core.
The object of the present invention is to provide a roller type support frame wherein the connection of the core and the end pieces is strong and the core will not be loosened by vibration.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.


REFERENCES:
patent: 3357654 (1967-12-01), Losman et al.
patent: 4522348 (1985-06-01), Strout et al.
patent: 4732345 (1988-03-01), Golden
patent: 5482226 (1996-01-01), Choate
patent: 5568864 (1996-10-01), Nathan
patent: 5651510 (1997-07-01), Eble et al.
patent: 5991963 (1999-11-01), Tourigny
patent: 6056234 (2000-05-01), Kim
patent: 6113054 (2000-09-01), Ma
patent: 6145771 (2000-11-01), Santa Cruz et al.

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