DRIVE TRANSMISSION MECHANISM AND RECORDING DEVICE COMPRISING THE DRIVE TRANSMISSION MECHANISM

To provide a technique that can secure sliding performance between a transmission member of a drive transmission mechanism and a support member supporting the transmission member, and can suppress abrasion.SOLUTION: A drive transmission mechanism of a recording device comprises: a first transmission member 631 which rotates with a drive force of a drive source; a second transmission member 632 which rotates in a first direction and a second direction opposite to the first direction by receiving a drive force from the first transmission member 631; a third transmission member 633 which rotates by receiving a drive force from the second transmission member 632; and a support member 613 which is inserted into a shaft hole in the second transmission member 632, a first region of an external peripheral surface the support member receiving a first pressing force Fa from the second transmission member 632 rotating in the first direction, and a second region of the external peripheral surface receiving a second pressing force Fb from the second transmission member 632 rotating in the second direction. In the support member 613, grooves 621a, 621b are formed on an upstream side in the first direction with respect to the first region and on an upstream side in the second direction with respect to the second region.SELECTED DRAWING: Figure 7 【課題】駆動伝達機構における伝達部材とこれを支持する支持部材との間の摺動性の確保及び摩耗の抑制を図ることができる技術を提供する。【解決手段】駆動源の駆動力により回転する第一伝達部材６３１と、第一伝達部材６３１から駆動力を受けて第一方向および第一方向と反対の第二方向に回転する第二伝達部材６３２と、第二伝達部材６３２から駆動力を受けて回転する第三伝達部材６３３と、第二伝達部材６３２の軸孔に挿通され、第一方向に回転する第二伝達部材６３２から外周面の第一領域が第一の押圧力Ｆａを受け、第二方向に回転する第二伝達部材６３２から外周面の第二領域が第二の押圧力Ｆｂを受ける支持部材６１３と、を備える、記録装置の駆動伝達機構において、支持部材６１３は、第一領域に対して第一方向の上流側でかつ第二領域に対して前記第二方向における上流側に溝６２１ａ、６２１ｂが配されている。【選択図】図７