Mitsubishi Chemical Corporation

General Plastic Industrial Co., Ltd.

Yohei Matsuoka

Shuichi Ikeda

Shinichi Iijima

Teruyuki Mitsumori

Hiroshi Takata

Yasunori Kawai

Daishi Kato

Kozo Ishio

Susumu Taguchi

An end member is disposed in an end portion of a columnar rotating body, comprising: a shaft member; and a bearing member which holds the shaft member, wherein the shaft member comprises: a rotating shaft; and a rotating force receiving portion, and wherein at least one of the shaft member and the bearing member has a mechanism where the rotating force receiving portion moves also in a shaft line direction without be inclined by a movement of the rotating force receiving portion in a direction orthogonal to the shaft line direction or by a rotation of the rotating force receiving portion around a shaft line.

End member, photoreceptor drum unit, and process cartridge

A transmission device includes a gear member, an intermediate member removably attached to the gear member and including a guiding groove, and a transmitter including a shaft, the shaft having at least one protrusion extending radially outward from the shaft, and the guiding groove is shaped such that the protrusion is movable along the guiding groove in an axial direction and rotatable relative to the guiding groove.

Transmission device for a photosensitive drum

An end member disposed in an end portion of a columnar rotating body, comprising: a shaft member; and a bearing member to which the shaft member is attached, wherein the bearing member includes a rotating force transmission pin, a tubular body, and a pin holding portion, the shaft member includes a rotating shaft, a rotating force receiving portion, and a base end portion.

An end member includes a tubular bearing member and a shaft member held by the bearing member. The shaft member includes a rotating shaft rotatable around an axis and movable in an axial direction, and a rotating force receiving member disposed in one end portion of the rotating shaft and including an engaging member to be engaged with a driving shaft of the image forming apparatus body. The engaging member is switchable between a posture of being engaged with the driving shaft and a posture of not being engaged with the driving shaft. A maximum static friction coefficient applied when the rotating shaft moves in a rotating axial direction with respect to the bearing member is equal to or less than 0.40 where a force that acts in a direction orthogonal to a frictional force direction is 2.5 to 10.5 N.

End member, photosensitive drum unit, and process cartridge

An end member () is disposed in an end portion of a columnar rotating body (), comprises: a bearing member (); and a shaft member (), in which the bearing member includes a main body () having a tubular body () and a holding portion () disposed on an inner side of the tubular body, and an intermediate member () held by the holding portion of the main body, in which one end side of the shaft member is held by the intermediate member, the intermediate member is snap-fit jointed to the holding portion of the main body to be rotatable around one axis, and the shaft member is snap-fit jointed to the intermediate member to be rotatable around an axis which is different from the axis of rotation of the intermediate member.

Bearing member, end member, photoreceptor drum unit, developing roller unit, process cartridge, and manufacturing method of bearing member

An end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprises: a tubular bearing member; and a shaft member held by the bearing member, wherein the shaft member includes a rotating shaft which is disposed in the bearing member, and moves in an axial direction, and a rotating force receiving member which is provided with an engagement hook that is disposed in one end portion of the rotating shaft, swings with respect to an axis of the rotating shaft, and is engaged with a driving shaft of the image forming apparatus main body.

Shaft member, end member, photoreceptor drum unit, developing roller unit, and process cartridge

There is provided an end member which is disposed in an end portion of a columnar rotating body mounted on an image forming apparatus main body, comprising: a tubular bearing member; and a shaft member held by the bearing member, in which the shaft member includes a rotating shaft which oscillates within a range of 18&#xb0; or less with respect to a direction along an axis of the bearing member, a rotating force receiving member which is disposed in one end portion of the rotating shaft and is provided with an engaging member which is engaged with a driving shaft of the image forming apparatus main body, and a regulating member which is engaged with or disengaged from the rotating shaft or the rotating force receiving member by pressing, and switches a posture in which the engaging member is engaged with the driving shaft and a posture in which the engaging member is not engaged with the driving shaft.

An end member is disposed at an end portion of a columnar rotating body mounted on an image forming apparatus body. The end member includes a tubular bearing member and a shaft member held by the bearing member. The shaft member includes a shaft-like rotating shaft which is disposed coaxially to the bearing member, and which rotates around a shaft line with respect to the bearing member to move in a direction of the shaft line, and a tip end member which is disposed coaxially to the rotating shaft, and at which a rotating force receiving member having a tip end provided with an engaging member which engages with a driving shaft of the image forming apparatus body is disposed. A rotating force around the shaft line is transmitted to the rotating force receiving member, the rotating shaft, and the bearing member in order.

End member, photosensitive drum unit, developing roller unit, and process cartridge

An end member () comprises: a tubular bearing member (); and a shaft member (), wherein the shaft member comprises: a shaft-like rotating shaft () which is disposed coaxially to the bearing member, and moves in the shaft line direction by rotating around a shaft line with respect to the bearing member; and a tip end member () which is disposed coaxially to the rotating shaft, and where a rotating force receiving member () provided with an engaging member () which engages with a driving shaft () of the image forming apparatus main body is disposed at a tip end, wherein a rotating force around the shaft line is transmitted to the rotating force receiving member, the rotating shaft, and the bearing member, in this order, and the rotating force receiving member moves to be inclined with respect to the shaft line.

End member, photoreceptor drum unit, developing roller unit, and process cartridge

Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft

End member which allows transmission of rotary power

Provided is an end member which allows appropriate transmission of rotary power, and smooth attachment and detachment with respect to an apparatus body. The end member includes a tubular bearing member and a shaft member that is held by the bearing member. The shaft member includes a turning shaft which moves in an axial line direction in accordance with turning about an axial line, a rotary power reception member which is arranged at one end of the turning shaft and includes an engagement member engaging with a drive shaft of an image forming apparatus body, and a regulation member which is pressed to engage with or be detached from the turning shaft or the rotary power reception member, whereby the engagement member switches between an engagement posture and a non-engagement posture with respect to the drive shaft.

Growing community of inventors

Kanagawa, Japan

Yohei Matsuoka