Abstract: The tire has a tread portion for which an intended tire rotational direction is specified. The tread portion comprises first inclined land portions defined between first inclined grooves. The first inclined land portion comprises an outer portion having a first wall surface and a second wall surface, and an inner portion having a third wall surface and a fourth wall surface. The angle ?1 of the first wall surface is smaller than the angle ?2 of the second wall surface, and the angle ?3 of the third wall surface is larger than the angle ?4 of the fourth wall surface.

Abstract: The tire has a tread portion for which an intended tire rotational direction is specified. The tread portion comprises first inclined land portions defined between first inclined grooves. The first inclined land portion comprises an outer portion having a first wall surface and a second wall surface, and an inner portion having a third wall surface and a fourth wall surface. The angle ?1 of the first wall surface is smaller than the angle ?2 of the second wall surface, and the angle ?3 of the third wall surface is larger than the angle ?4 of the fourth wall surface.

Abstract: A tire comprises a tread portion comprising three main grooves and four land portions. The main grooves are a first shoulder main groove, a second shoulder main groove and a crown main groove. The land portions include a first middle land portion between the first shoulder main groove and the crown main groove, a second middle land portion between the second shoulder main groove and the crown main groove. The first middle land portion is disposed so that the tire equator is positioned in the ground contact surface thereof. Each of the first middle land portion and the second middle land portion is provided with a plurality of narrow grooves so as to exhibit excellent steering stability and ride comfort.

Abstract: A tire has a tread portion bound with an intended tire rotational direction. The tread portion includes a first tread edge and a second tread edge. The tread portion is provided with first oblique grooves extending obliquely toward a heel side in the tire rotational direction from the first tread edge toward a tire equator side, second oblique grooves extending obliquely toward the heel side from the second tread edge toward the tire equator side, and first circumferential grooves each connecting a respective pair of the first oblique grooves adjacent to each other in a tire circumferential direction. The first oblique grooves have the tire equator side end portions intersecting with the second oblique grooves. The second oblique grooves have the tire equator side end portions intersecting with the first oblique grooves. The first circumferential grooves have groove widths each increasing toward the heel side in the tire rotational direction.

Abstract: A band 20 of a tire 2 includes a full band 48 covering an entirety of a belt 14, and a pair of edge bands 50 disposed so as to be spaced apart from each other in an axial direction and each covering an end 46 of the belt 14. A cross-section of the band 20 includes a large number of cross-sections of a band strip 52. In a cross-section of the full band 48, a plurality of cross-sections of the band strip 52 are aligned with a gap therebetween. In a cross-section of each edge band 50, a plurality of cross-sections of the band strip 52 are aligned without any gap therebetween. An inner end 62 of each edge band 50 is located so as to be spaced apart from a bottom BT of a shoulder circumferential groove 24s in the axial direction.

Abstract: A tire comprises a tread portion whose position when mounted on a vehicle is specified. The tread portion includes an inner crown land region defined between a crown main groove and an inner shoulder main groove. The inner crown land region includes crown lateral grooves, first inner crown sipes, second inner crown sipes each extending from the inner shoulder main groove toward the crown main groove and having an inner end terminating within the inner crown land region, and third inner crown sipes each extending from the crown main groove toward the inner shoulder main groove and having an outer end terminating within the inner crown land region. The crown lateral grooves each have a length in a tire axial direction larger than that of each of the second inner crown sipes.

Abstract: A tire comprises a tread portion comprising three main grooves and four land portions. The main grooves are a first shoulder main groove, a second shoulder main groove and a crown main groove. The land portions include a first middle land portion between the first shoulder main groove and the crown main groove, a second middle land portion between the second shoulder main groove and the crown main groove. The first middle land portion is disposed so that the tire equator is positioned in the ground contact surface thereof. Each of the first middle land portion and the second middle land portion is provided with a plurality of narrow grooves so as to exhibit excellent steering stability and ride comfort.

Abstract: A tire comprises a tread portion 2. The tread portion 2 comprises two crown land regions 6 and two shoulder land regions 7 divided by a crown main groove 3 and a pair of shoulder main grooves 4 and 5 arranged one by one on each side of the crown main groove 3. Each of the two crown land regions 6 is provided with a plurality of sipes 15 each having a width less than 1.5 mm. The sipes 15 of each of the two crown land regions 6 include only semi-open sipes 18 each having one end connected with one of the main grooves and the other end terminating within the land region. The sipes 15 of the two crown land regions 6 are inclined in a same direction with respect to a tire axial direction.

Abstract: A tire comprises a tread portion whose position when mounted on a vehicle is specified. The tread portion includes an inner crown land region defined between a crown main groove and an inner shoulder main groove. The inner crown land region includes crown lateral grooves, first inner crown sipes, second inner crown sipes each extending from the inner shoulder main groove toward the crown main groove and having an inner end terminating within the inner crown land region, and third inner crown sipes each extending from the crown main groove toward the inner shoulder main groove and having an outer end terminating within the inner crown land region. The crown lateral grooves each have a length in a tire axial direction larger than that of each of the second inner crown sipes.

Abstract: A tire comprises a tread portion 2. The tread portion 2 comprises two crown land regions 6 and two shoulder land regions 7 divided by a crown main groove 3 and a pair of shoulder main grooves 4 and 5 arranged one by one on each side of the crown main groove 3. Each of the two crown land regions 6 is provided with a plurality of sipes 15 each having a width less than 1.5 mm. The sipes 15 of each of the two crown land regions 6 include only semi-open sipes 18 each having one end connected with one of the main grooves and the other end terminating within the land region. The sipes 15 of the two crown land regions 6 are inclined in a same direction with respect to a tire axial direction.

Abstract: The purpose of the invention is to provide a solid model creation apparatus that is small in size and inexpensive. A multiplicity of blue LEDs are prepared, optical fibers are connected thereto, and GRIN lenses are arranged at the ends of the tips of the respective optical fibers to constitute an exposing head 23. The exposing head 23 forms images of the end faces of the respective optical fibers in a photocurable resin exposure region 24 as light spots 55. The diameter of a light spot 55 is, for example, 0.5 mm, but the size of a pixel 71 within the exposure region 24 is much smaller; for example, 62.5&mgr;. The multiplicity of optical fibers at the exposing head 23 are arrayed in a matrix such that they are displaced in staggered fashion so that respective light spots 55 are lined up at the pitch 62.5&mgr; of the pixels 71 in the primary scan (Y-axis) direction.