US 5,289,984 A · Paper roll driving apparatus

Abstract

Disclosed is a paper roll driving apparatus which comprises a timing belt pulley fitted to a rotatable holding member for holding a paper roll core, a timing belt disposed in such a manner as to be selectively displaceable into an engagement/disengagement state with and from the timing belt pulley and belt driving means for driving and moving the timing belt in engagement. The holding member or in other words, the paper roll, is driven for rotation by driving of the timing belt.

Drawings

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Drawings

Claims5

Dependent claims

A paper roll driving apparatus, comprising:

a rotatable holding member for holding a core of a paper roll;
a timing belt pulley fitted to said rotatable holding member for rotation with said holding member and a core of a paper roll held thereon;
an arm having a plurality of belt pulleys supported thereon;
said arm being pivotally connected at a pivot point to a support portion of the apparatus;
a timing belt supported on said plurality of belt pulleys so as to be pivotally mounted for selective displacement into and out of engagement with said timing belt pulley;
means for driving said timing belt;
means for pivoting said arm around said pivot point for pivotally moving said timing belt into and out of engagement with said timing pulley for driving and interrupting driving of said rotatable holding member and said paper roll, said means for pivoting said arm around said pivot point for pivotally moving said timing belt having a piston rod connected to said arm and a means for extending and retracting said piston rod for moving said timing belt into and out of engagement with said timing pulley;
wherein said support portion of the apparatus includes a sub-frame having a means for movably supporting a second arm thereon, said arm being pivotally connected at said pivot point to said second arm, and a means for moving said second arm along said sub-frame such that said timing belt is moved toward and away from the timing belt pulley;
and
wherein saidmeans for movably supporting said second arm on said sub-frame includes at least one guide bar and said means for moving said second arm includes a piston and piston rod which are supported proximate said sub-frame, said piston rod being connected to a portion of said second arm so as to move said second arm along said at least one guide bar.

7 more elements

Dependencies are inferred from the claim text.

Description3,427 words

Summary929 words

#1. Field of the Invention

#The present invention relates to a paper roll driving apparatus. More particularly, in a web feeder of a rotary press using a paper roll, the present invention relates to a paper roll driving apparatus for rotating and driving a next paper roll when a paper roll is spliced with a next paper roll.

#2. Description of the Prior Art

Brief description of the drawings5 figures

#Other objects, features and advantages of the present invention will be described in the following with reference to the accompanying drawings, in which:

#FIG. 1 is a front view showing the schematic structure of a paper roll driving apparatus in a first embodiment of the present invention;

#FIG. 2 is a partial sectional side view showing the schematic structure of the paper roll driving apparatus in the first embodiment of the present invention;

Detailed description2,341 words

#A paper roll driving apparatus in accordance with preferred embodiments of the present invention will be explained with reference to FIGS. 1, 2 and 3.

#In a paper roll driving apparatus of a web feeder of a rotary press using a paper roll, a machine frame 1 and a machine frame 2 are disposed vertically in parallel with each other so as to face each other and both ends of a spider shaft 3 crossing orthogonally these machine frames 1, 2 are supported rotatably by bearings. The spider shaft 3 is allowed to move in an axial direction by a moving mechanism not shown in the drawings.

#Spiders 4 and 5 are key-coupled to the spider shaft 3 in such a manner as to face each other with a spacing between them in an axial direction and opposed arms 4a, 5a and 4b, 5b of these arms 4, 5 are in parallel with one another. Center collars 6, 7 as holding members of the paper roll are supported rotatably round an axis which is in parallel with the axis of the spider shaft 3 at each arm end of the arms 4, 5 and when both ends of a core of the paper roll are clamped between and supported by the center collars 6, 7, the paper roll is supported rotatably by these arms 4, 5. A timing belt pulley 8 meshing with a double faced timing belt of belt driving means, which will be described later, is fixed to the outer end portion of the center collar 6 on the side of the machine frame 1.

Facts

Application

07/974,351Filed 10 Nov 1992 · continuation

Priority

JP 2-21576817 Aug 1990

Granted

1 Mar 1994

Term ended

20 Jun 2011

Estimated · how

Pre-1995 term; greater of 17 years from grant or 20 years from filing when eligible. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification2 codes

B65H 19/1889
Details for effecting a positive rotation of web roll, e.g. accelerating the replacement roll: related to driving arrangements
B65H
Handling thin or filamentary material

Paper roll driving apparatus

Life of this patent

Paper roll driving apparatus

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims5

Description3,427 words

Drawings

Classification2 codes

Life of this patent

Description3,427 words