Mounting structure and mounting method for resin vehicle panel
In mounting a resin panel to a car body member, the car body member is provided with a car body member thread part, a portion of the resin panel corresponding to the car body member thread part is formed with a slot extending along a direction of allowance of thermal deformation of the resin panel, and the resin panel is mounted to the car body member using a fastener including: a threaded stem; a first large diameter part provided to one end of the threaded stem and insertable in the slot; and a fastener thread part provided at an end surface of the first large diameter part opposite to the threaded stem and screw-engageable with the car body member thread part.
1. A resin vehicle panel mounting structure in which a resin panel for vehicles is mounted to a car body member, wherein
the car body member is provided with a car body member thread part having internal threads or external threads,
a portion of the resin panel corresponding to the car body member thread part is formed with a slot extending along a direction of allowance of thermal deformation of the resin panel,
the resin vehicle panel mounting structure comprises a fastener including:
a threaded stem;
a first large diameter part provided to one end of the threaded stem and inserted in the slot; and
a fastener thread part provided at an end surface of the first large diameter part opposite to the threaded stem and screw-engaged with the car body member thread part,
wherein the threaded stem of the fastener is provided with a second large diameter part having a larger diameter than the first large diameter part,
wherein the first large diameter part is tightened against the car body member through screwing of the fastener thread part onto or into the car body member thread part, and
wherein a clearance is created between the second large diameter part and the resin panel with the first large diameter part tightened against the car body member.
2. A resin vehicle panel mounting structure in which a resin panel for vehicles is mounted to a car body member, wherein the car body member is provided with a car body member thread part having, internal threads or external threads
a portion of the resin panel corresponding to the car body member thread part is formed with a slot extending along a direction of allowance of thermal deformation of the resin panel,
the resin vehicle panel mounting structure comprises a fastener including:
a threaded stem,
a first large diameter part provided to one end of the threaded stem and inserted in the slot; and
a fastener thread part provided at an end surface of the first large diameter part opposite to the threaded stem and screw-engaged with the car body member thread part,
wherein the threaded stem of the fastener is provided with a second large diameter part having a larger diameter than the first large diameter part;
a frame-shaped spacer having a higher compressive creep strength than the resin panel is fitted in the slot of the resin panel,
the spacer is formed with a first slot in which the first large diameter part of the fastener is inserted and a second slot in which the second large diameter part thereof is inserted, the first and second slots joining in the direction of thickness of the spacer and extending along the slot of the resin panel, and
a portion of the spacer formed with the first slot is designed to have substantially the same thickness as a portion of the resin panel formed with the slot.
3. The resin vehicle panel mounting structure of claim 1 , further comprising a thermal contraction restricting part for restricting thermal contraction of the resin panel over a predetermined amount.
4. The resin vehicle panel mounting structure of claim 3 , wherein the thermal contraction restricting part is configured to restrict the thermal contraction of the resin panel over the predetermined amount by the abutment of the fastener screw-engaged with the car body member thread part against one end of the slot of the resin panel.
5. The resin vehicle panel mounting structure of claim 2 , further comprising a thermal contraction restricting part for restricting thermal contraction of the resin panel over a predetermined amount.
6. The resin vehicle panel mounting structure of claim 5 , wherein the thermal contraction restricting part is configure to restrict the thermal contraction of the resin panel over the predetermined amount by the abutment of the fastener screw-engaged with the car body member thread part against one end of the slot of the resin panel.