1. A granulator mill comprising:
a mill housing including: one fixed part that is stationary arranged in a frame of the granulator mill and one openable part that is connected to the fixed part by a first pivot device with a first pivot axis which is substantially vertical in the normal position of use of the granulator mill;
one rotor which is rotary inside the mill housing and includes a number of blades for co-operation with at least one fixed blade mounted in the mill housing;
one discharge section whose interior is separated from the interior of the mill housing by a grid through which granulate passes from the mill housing to the discharge section;
an infeed hopper on top of the mill housing, the infeed hopper being connected to the mill housing by a second pivot device with a second pivot axis which is substantially parallel to the rotational axis of the rotor; and
co-operating locking means on the openable part of the mill housing and on the infeed hopper, said locking means locking the infeed hopper in a closed operational position when the openable part of the mill housing is closed and allowing the infeed hopper to be pivoted to an open position thereby giving access to the interior of the mill housing only when the openable part of the mill housing is in open position.
2. Granulator mill as claimed in claim 1 further comprising:
one locking and safety arrangement allowing the opening of the openable part of the mill housing only when the rotor has come to a complete stop and preventing re-start of the rotor until after the openable part of the mill housing and the infeed hopper both have been closed.
3. The granulator mill as claimed in claim 2 wherein the co-operating locking means comprises:
a first locking means provided on an upper edge portion of the openable part of the mill housing; and
a second locking means provided on a lower edge portion of the infeed hopper;
wherein the first locking means is located for engaging the second locking means from above.
4. The granulator mill as claimed in claim 3 wherein the first and second locking means are elongate striplike members.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fixing device comprising:
an endless fixing belt;
a first rotating body arranged at an inner side of the fixing belt; and
a heater arranged to face an inner surface of the fixing belt and configured to heat the fixing belt and to suspend the fixing belt in a tensioned state together with the first rotating body, the heater comprising:
a heat generating unit arranged at an end portion of the heater on a downstream side in a direction of travel of the fixing belt and configured to heat the fixing belt, wherein, a length of a heat generating region of the heat generating unit is less than an entire length of the heat generating unit; and
a support including metal and configured to support the heat generating unit, wherein a contact length between the support and the heat generating unit is defined as l1, a length of a heat generating region of the heat generating unit is defined as l2, and l1 and l2 satisfy the relation l1\u2266l2.
2. The fixing device of claim 1, wherein the heat generating unit is a sheet heating element.
3. The fixing device of claim 1, wherein the heat generating unit comprises a chamfered portion at an end portion thereof on the downstream side.
4. The fixing device of claim 1, wherein the heat generating unit comprises a curved portion at an end portion thereof on the downstream side.
5. The fixing device of claim 1, wherein a side surface of the heat generating unit is an end surface of the heater on the downstream side.
6. The fixing device of claim 1, further comprising a second rotating body pressed against at least the first rotating body with the fixing belt interposed there between.
7. The fixing device of claim 6, wherein the second rotating body is pressed against the heater with the fixing belt interposed therebetween.
8. The fixing device of claim 6, wherein a portion where the first rotating body and the second rotating body are pressed against each other includes a fixing region.
9. The fixing device of claim 1, further comprising a pressure-contact member pressed against the heater with the fixing belt interposed there between.
10. An image forming apparatus comprising a fixing device defined in claim 1.
11. The fixing device of claim 1, wherein the fixing belt comprises a laminate body that includes a base body on the support side, an elastic layer formed on the base body, and a releasing layer formed on the elastic layer.
12. The fixing device of claim 1, wherein the fixing belt comprises a laminate body that includes a base body on the support side and a releasing layer formed on the base body.
13. The fixing device of claim 1, wherein the heat generating unit is disposed at an end portion of the support on a downstream side in a direction of travel of the fixing belt.
14. The fixing device of claim 9, wherein the pressure-contact member faces the support at a different position from that of the heat generating unit.
15. The fixing device of claim 1, wherein the heat generating unit press-contacts against the second rotating body on the upstream side of a nip portion between the first rotating body and the second rotating body.