Laminated plate
View Patent ↗The present invention relates to a laminated plate (laminated glass plate 102 for a vehicle) including a first plate (first glass plate 201 ) being curved in a first curved shape, a second plate (second glass plate 202 ) having a second shape that is different from the first curved shape, and an intermediate film 301 bonding the first plate and the second plate, in which the laminated plate has, in a planar view thereof, a peripheral region 313 and an in-plane region 314 , and the peripheral region 313 has a flat region 313 a and an undulating region 313 b.
1. A laminated plate comprising:
a first glass plate having a first curved shape bonded to a second glass plate having a second shape with an intermediate film, the second shape being different from the first curved shape
such that the laminated plate has, in a planar view thereof, an in-plane region and an outer peripheral region to the in-plane region;
wherein
a thickness of the first glass plate is greater than a thickness of the second glass plate,
the thickness of the first glass plate is 1.5 mm or more and 4.0 mm or less, and
the thickness of the second glass plate is 0.2 mm or more and less than 1.0 mm, and
the peripheral region has a flat region and an undulating region, the undulating region comprising wrinkles formed in the second glass plate.
2. The laminated plate according to claim 1 , wherein the flat region is formed along a part of an outer periphery of the laminated plate.
3. The laminated plate according to claim 1 , wherein:
an outer periphery of the laminated plate is formed of plural edges,
the plural edges include a first edge, and
the flat region is formed along a part of the first edge of the laminated plate.
4. The laminated plate according to claim 1 , wherein:
an outer periphery of the laminated plate is formed of plural edges,
the plural edges include a first edge, and
the flat region is formed entirely along the first edge of the laminated plate.
5. The laminated plate according to claim 3 , wherein:
the laminated plate is a windowpane for a vehicle, and
the first edge is an exposed edge that is exposed outside when the laminated plate is assembled in a vehicle body.
6. The laminated plate according to claim 4 , wherein:
the laminated plate is a windowpane for a vehicle, and
the first edge is an exposed edge that is exposed outside when the laminated plate is assembled in a vehicle body.
7. The laminated plate according to claim 3 , wherein:
the laminated plate is a slidable windowpane for a vehicle, and
the first edge is a slide edge that slides when the laminated plate is assembled in a vehicle body.
8. The laminated plate according to claim 4 , wherein:
the laminated plate is a slidable windowpane for a vehicle, and
the first edge is a slide edge that slides when the laminated plate is assembled in a vehicle body.
9. The laminated plate according to claim 1 , wherein a standard deviation of a thickness in the flat region is less than 0.02 mm.
10. The laminated plate according to claim 1 , wherein the undulating region is formed along a part of the outer periphery of the laminated plate.
11. The laminated plate according to claim 1 , wherein:
the outer periphery of the laminated plate is formed of plural edges,
the plural edges include a second edge, and
the undulating region is formed along a part of the second edge of the laminated plate.
12. The laminated plate according to claim 1 , wherein:
the outer periphery of the laminated plate is formed of plural edges,
the plural edges include a second edge, and
the undulating region is a region having a length of 30 mm or more continuously in a direction along the second edge of the laminated plate.
13. The laminated plate according to claim 1 , wherein:
the peripheral region has a light-shielding region, and
at least a part of the undulating region exists in the light-shielding region.
14. The laminated plate according to claim 11 , wherein:
the laminated plate is a windowpane for a vehicle, and
the second edge is a non-exposed edge that is not exposed outside when the laminated plate is assembled in a vehicle body.
15. The laminated plate according to claim 12 , wherein:
the laminated plate is a windowpane for a vehicle, and
the second edge is a non-exposed edge that is not exposed outside when the laminated plate is assembled in a vehicle body.
16. The laminated plate according to claim 1 , wherein a standard deviation of a thickness in the undulating region is 0.02 mm or more.