Material or article handling – Tilting vehicle-type handler – Article actuated engaging means
Patent
1998-08-26
2000-07-11
Olszewski, Robert P.
Material or article handling
Tilting vehicle-type handler
Article actuated engaging means
414490, 414911, 2425714, 242588, 2425976, B62B 114, B65H 1912, B65H 1930
Patent
active
060863110
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to transporting apparatus and in particular, but not exclusively, to apparatus for transporting a reel having a substantially central, hollow core.
BACKGROUND OF THE INVENTION
In the printing industry it is common to use large reels or rolls of paper which comprise a continuous length of paper wrapped around a central core. These reels are mounted onto printing machinery by lifting the reel and locating the core onto a receiving rod.
The weight of these paper reels is often considerable and it can be extremely difficult for even several persons to manually lift them into place. In order to ease this task, specialized lifting apparatus have been designed for lifting large paper reels. Such lifting apparatus generally comprises a four-wheeled trolley on which is mounted hydraulic, electrical or mechanical lifting machinery. Typically, a mandrel projects from the lifting machinery and is arranged to be located within the core of the reel to be lifted. The mandrel is then raised vertically to position the reel at an appropriate height for receipt by the receiving rod of the printing apparatus. Generally, the mandrel extends only part-way through the core in order to leave enough room at the opposite end of the core so that the core can be transferred onto the receiving rod of the printing machinery.
Reel lifting apparatus comprising hydraulic and electrical lifting machinery tends to be relatively expensive. On the other hand, whilst mechanical, hand operated lifting machinery is cheaper, it still tends to be complex and can be difficult for persons of small stature to operate. Both types of machinery require a large amount of space in which to operate.
BRIEF SUMMARY OF THE INVENTION
It is an object of the present invention to overcome or at least mitigate the disadvantages of conventional reel lifting apparatus.
In particular, it is an object of the present invention to provide a reel lifting apparatus which can be operated by a single person, and in a relatively confined space.
According to the present invention there is provided a transporter for lifting and transporting a reel having a substantially central, hollow core, the transporter comprising: to allow an operator to pivot the chassis relative to the ground; and to be received by a core of a reel to be lifted and transported, the mandrel comprising deflecting means arranged to be deflected outwardly from the longitudinal axis of the mandrel by the weight of a reel when the mandrel supports a reel, so as to self-lock the mandrel within the core of the reel.
It will be appreciated that the mandrel may be released from the core of a reel by relieving the weight of the reel from the mandrel.
In one embodiment of the invention, the mandrel comprises a first portion integral with or rigidly secured to the chassis, a second portion hingeably coupled at an upper region thereof to said first portion, and reaction means engaging said first portion and extending at least part-way along said second portion to engage deflecting means coupled to the second portion, wherein, when the mandrel is not supporting a reel, the hingeable coupling is open and the reaction means maintains the deflecting means in a non-deflected position and, when the mandrel is supporting a reel, the hingeable coupling is arranged to substantially close due to the weight of the reel, moving the reaction means along said first portion in turn to move the deflector member to a deflected position to cause the mandrel to tightly engage the core of the supported reel.
Preferably, said chassis comprises a substantially upright frame with said two wheels being attached to the chassis for rotation about a common axis. However the frame may be provided with more than two wheels, e.g. three or four, at the bottom of the frame. The handlebars are preferably provided at the top of the upright frame.
Preferably, the mandrel projects from a substantially central region of the upright frame. Preferably, the upright frame is provided with a footpla
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O'Connor Gerald J.
Olszewski Robert P.
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