To provide a back door reinforcement structure which can suppress vibration being a noise factor within a cabin.SOLUTION: A reinforcement structure of a back door 11 used for a vehicle application comprises a reinforcement part 13 which reinforces a back door body 12. A door top 21 comprises a pair of side frame members (a first side frame member 22 and a second side frame member 23). Each of the pair of side frame members has a first hollow part H1 extending in a vertical direction. A bottom panel body 32 of a door bottom 31 has a second hollow part H2 between a first bottom panel part 32a and a second bottom panel part. The reinforcement part 13 has a first reinforcement part 41 disposed in each first hollow part H1 and a second reinforcement part 42 disposed in the second hollow part H2. Each first reinforcement part 41 has a first foam anchored on the side frame member. The second reinforcement part 42 has a second foam anchored on both of the first bottom panel part 32a and the second bottom panel part and disposed separating from the first reinforcement part 41.SELECTED DRAWING: Figure 1

    【課題】車室内における騒音の要因となる振動を抑えることを可能にしたバックドアの補強構造を提供する。【解決手段】車両用途に用いられるバックドア11の補強構造は、バックドア本体12を補強する補強部13を備える。ドア上部21は、一対の側枠部材(第1側枠部材22及び第2側枠部材23)を備える。一対の側枠部材の各々は、上下方向に延びる第1中空部H1を有する。ドア下部31の下部パネル体32は、第1下部パネル部32aと第2下部パネル部との間の第2中空部H2を有する。補強部13は、各第1中空部H1に配置される第1補強部41と、第2中空部H2に配置される第2補強部42とを有する。各第1補強部41は、側枠部材に固着する第1発泡体を有する。第2補強部42は、第1下部パネル部32aと第2下部パネル部とのいずれにも固着し、かつ第1補強部41と離間して配置される第2発泡体を有する。【選択図】図1


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    Title :

    BACK DOOR REINFORCEMENT STRUCTURE


    Additional title:

    バックドアの補強構造


    Contributors:

    Publication date :

    2024-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge



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