Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
1999-12-13
2001-11-06
Watson, Robert C. (Department: 3723)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
Reexamination Certificate
active
06311380
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a device for mounting bearings on a shaft. The device includes a pushing member with a threaded rod extending through the pushing member and the threaded rod is connected to a shaft on which a bearing is mounted. A rotatable member is threadedly engaged with the threaded rod and the pushing member contacts the bearing so that the pushing member is moved to push the bearing by rotating the rotatable member.
BACKGROUND OF THE INVENTION
FIG. 1
shows a conventional bearing puller which is used to pull a bearing from a shaft. However, there is a lack for providing a tool to easily mount bearings onto a shaft. A conventional way to mount bearings to a shaft is illustrated in
FIG. 2
, wherein the bearing
100
is first mounted to an end of the shaft
101
, and the operator uses wood or plastic mallets or hammers
102
to hit the bearing
100
so that the bearing
100
is moved inch by inch to be located to a desired position on the shaft
101
. It takes a lot of time and cannot precisely position the bearing
100
onto the shaft
101
. Besides, the bearing
100
could be damaged. Some hydraulic machines are used to push bearings onto a shaft. These hydraulic machines can only to engage with bearings that have specific specifications and the machines are expensive.
The present invention intends to provide a device to mount bearings onto a shaft by continuously rotating a rotatable member.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a device for mounting bearings onto a shaft. The device comprises a tubular pushing member which has three wings extending radially outward therefrom. Each of the wings has a rod slidably and perpendicularly connected thereto. The tubular pushing member has a passage and an annular flange extends radially inward from an inside of the passage. A threaded rod extends through the passage. An engaging means is on a first end of the threaded rod and is adapted to be connected to the shaft. A rotatable member rotatably contacts the pushing member and is threaded mounted to a second end of the threaded rod.
The object of the present invention is to provide a device that pushes bearings onto a shaft by continuously rotating a rotatable member.
Another object of the present invention is to provide a device that the pushing member has three adjustable rods which are used to push bearings having different sizes.
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: H1349 (1994-09-01), Kelley
patent: 1804843 (1931-05-01), Santiago
patent: 2036782 (1936-04-01), Ullmo
patent: 2052304 (1936-08-01), Kaplan
patent: 2821777 (1958-02-01), Keister
patent: 3340593 (1967-09-01), Savastano
patent: 3551988 (1971-01-01), Berbel et al.
patent: 3568294 (1971-03-01), Conner
patent: 4059883 (1977-11-01), Osborne
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