Textiles: fiber preparation – Working – Carding
Patent
1994-02-14
1996-07-23
Izaguirre, Ismael
Textiles: fiber preparation
Working
Carding
19107, D01G 1576
Patent
active
055377173
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a carding engine guard which is intended to shield operating personnel from coming into contact with the rotating parts of a carding engine.
It is essential for carding engines to be provided with suitable guards, since the inertia of a carding engine makes it a dangerous machine to come into contact with while rotating, as even if the machine drive stops quickly, serious injury can still be done. Therefore factory regulations require the provision of carding engine guards, and which must necessarily be sufficiently robust and rigid as to withstand an impact e.g. an unintentional impact from a fork lift truck or trolley travelling alongside the carding engine.
It is present practice to mount an arrangement of doors along each of the two longer sides of a carding engine, with the doors being hingedly mounted in a rigid support frame arranged alongside the card to move about vertical hinge axes between open and closed positions. The doors will be located in the closed position (extending parallel to the longitudinal axis of the card) when the card is operating, but one or more of the doors can be swung out to allow access to be had to the card when the latter has stopped so that routine cleaning or servicing operations can be carried out.
Evidently, with this existing arrangement, the doors project out into any transit path alongside the card, when they are in the open position, and which may therefore impede traffic of personnel or equipment alongside the machine. Also, by this arrangement of the doors, when the doors are open they do not allow easy access to all parts of the card, both by obstruction by the doors themselves, and also by parts of the support frame on which the doors are hingedly mounted.
SUMMARY OF THE INVENTION
The present invention has therefore been developed with a view to providing a carding engine guard which can be constructed as robustly as existing arrangements, but which permits improved access to the carding engine when the guard is adjusted from a guarding position to an open or access position.
According to a first aspect of the invention there is provided a carding engine guard arrangement comprising a carding engine having respective guards arranged along each side of the carding engine and extending generally parallel to the longitudinal axis of the carding engine, each guards being movable between a closed position in which the guard shields the associated side parts of the carding engine and an open position in which the guard allows access to be had to the side parts of the carding engine for servicing/repair purposes, in which at least one of the guards comprises: side parts of the carding engine which require to be shielded during operations but to which access will be required for servicing/repair operations; and, about a substantially horizontal hinge axis at or near to the upper edge of the door arrangement between the closed and open positions, said door arrangement comprising a pair of upper and lower folding door panels in which the lower panel is hinged to the upper panel along an upper edge of the lower panel and the upper panel is hinged along its upper edge to form the horizontal top hinge axis of the door arrangement.
According to a second aspect of the invention there is provided a carding engine guard arrangement comprising a carding engine having respective guards arranged along each side of the carding engine and extending generally parallel to the longitudinal axis of the carding engine, each guards being movable between a closed position in which the guard shields the associated side parts of the carding engine and an open position in which the guard allows access to be had to the side parts of the carding engine for servicing/repair purposes, in which at least one of the guards comprises: side parts of the carding engine which require to be shielded during operation but to which access will be required for servicing/repair operations, said support structure forming part of the side frame structu
REFERENCES:
patent: 1335082 (1920-03-01), Stowe
patent: 1736718 (1929-11-01), Moorhouse
patent: 4364151 (1982-12-01), Beneke et al.
patent: 4484845 (1984-11-01), Pennella, Jr. et al.
patent: 4985966 (1991-01-01), Witschke
Carey Peter
Carstairs Michael
Varga John
Carding Specialists (Canada) Limited
Izaguirre Ismael
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