Drive transmission device
AssigneeCanon Kabushiki Kaisha
InventorsKoji Kawamura, Junichi Ochi, Joji Goto
Life of this patent
Estimating the term…
Abstract
A drive transmission device includes: a first rotating member that rotates with driving power received from a driving source, a second rotating member that rotates with driving power from the first rotating member, and a driving-side engagement member and a driven-side engagement member for transmitting the driving power of the first rotating member to the second rotating member, wherein the driving-side engagement member and the driven-side engagement member engage with each other in a state in which the first rotating member is rotating whereby a power applying portion and a power receiving portion engage with each other while resisting against a second biasing power.
Claims5
A drive transmission device comprising:
- a first rotating member that rotates with driving power received from a driving source;
- a second rotating member that rotates with driving power from the first rotating member;
- a driving-side engagement member for transmitting the driving power of the first rotating member to the second rotating member, the driving-side engagement member being provided with a power receiving portion for receiving the driving power of the first rotating member, the power receiving portion engaging with a power applying portion formed in the first rotating member;
- a driven-side engagement member for transmitting the driving power of the first rotating member to the second rotating member;
- and
- a biasing member that biases at least one of the driving-side engagement member and the driven-side engagement member with a first biasing power in a direction which corresponds to a central line of rotation of the first rotating member and in which the driving-side engagement member and the driven-side engagement member engage with each other,
- wherein the driving-side engagement member and the driven-side engagement member engage with each other in a state in which the first rotating member is rotating, such that the driving power is transmitted from the first rotating member to the second rotating member via the power applying portion and the power receiving portion,
- wherein a gap is formed between the power applying portion and the power receiving portion in relation to a rotating direction of the first rotating member,
- wherein the driving-side engagement member is biased with a second biasing power which is the biasing power in the rotating direction of the first rotating member,
- wherein the power applying portion and the power receiving portion are separated by the second biasing power when the driving-side engagement member and the driven-side engagement member are not in engagement, and
- wherein the driving-side engagement member and the driven-side engagement member engage with each other in a state in which the first rotating member is rotating, such that the power applying portion and the power receiving portion engage with each other while resisting against the second biasing power.
Dependencies are inferred from the claim text.