Drive transmission device capable of preventing transmission of driving noise to outside, image forming apparatus
AssigneeKYOCERA Document Solutions Inc.
InventorHiroki Morishita
Life of this patent
Estimating the term…
Abstract
A drive transmission device includes an intermediate gear, a housing portion, and a support portion. The intermediate gear meshes with a first gear and a second gear to transmit a rotational driving force from the first gear to the second gear. The housing portion is formed from resin and includes a pair of cover portions, covering both sides of a gear train including the intermediate gear, to house the gear train. The support portion is formed from metal and supports the rotation shaft of the intermediate gear at a position outside the housing portion.
Claims6
A drive transmission device comprising:
- a plurality of intermediate gears meshing with a first gear and a second gear to transmit a rotational driving force from the first gear to the second gear;
- a housing portion formed from resin and including a pair of cover portions to house a gear train including the plurality of intermediate gears, the cover portions covering both sides of the gear train;
- and
- a support portion formed from metal and supporting a plurality of rotation shafts of the plurality of intermediate gears at a position outside the housing portion, wherein
- the support portion has a flat plate shape and supports the plurality of rotation shafts respectively corresponding to the plurality of intermediate gears.
A drive transmission device comprising:
- an intermediate gear meshing with a first gear and a second gear to transmit a rotational driving force from the first gear to the second gear;
- a housing portion formed from resin and including a pair of cover portions to house a gear train including the intermediate gear, the cover portions covering both sides of the gear train;
- and
- a support portion formed from metal and supporting a rotation shaft of the intermediate gear at a position outside the housing portion, wherein
- the support portion is secured to an outer surface of a first cover portion of the pair of cover portions,
- lubricant is applied to a contact area of the intermediate gear and the rotation shaft,
- the first cover portion includes an internal thread portion protruding to a second cover portion of the pair of cover portions and having an internal thread corresponding to a screw used to secure the support portion to the first cover portion, and
- the second cover portion includes a partition portion protruding to the first cover portion and separating the internal thread portion from a storage space for the gear train in the housing portion.
Dependencies are inferred from the claim text.