59results about How to "Uniform rigidity" patented technology

The invention provides a pneumatic tire, which can prevent partial abrasion and promote the performance on ice and snow road. A rotating direction (R) is defined on the pneumatic tire. The pneumatic tire has a first V-shaped groove (10A) and a second V-shaped groove (10B), wherein the first and second V-shaped grooves (10A;10B) are terminated within the rib (5); one end (14) of the first V-shaped groove (10A) is communicated with a crown circumferential groove(3A) while the other end (15) exceeds a tire equator (C) but not reach another crown circumferential groove (3B); one end of the second V-shaped groove (10B) is communicated with a crown circumferential groove(3B) while the other end exceeds a tire equator but not reach the crown circumferential groove (3B); and the first and second V-shaped grooves (10A;10B) comprise a primary part (11) which extends from one end to the tire equator along the rotating direction and a bent part (12) which is connected to the primary part and is substantially bent on the tire equator along the direction reverse to the rotating direction.

The invention provides an indoor lining plate for vehicle door. For mounting an inner article (an extending part of a handle component) on main body of the indoor lining plate, a groove part protruding towards outside of vehicle is formed on the main body of the indoor lining plate and an open part is formed on a position including a groove side surface of the groove part and an angle part between groove bottoms. So that, even if the spindly groove part for mounting the inner article on the main body of the indoor lining plate, rigidity of the main body of the indoor lining plate is balanced relative to impact energy absorption and absorption of impact energy can be carried by distortion of the main body of the indoor lining plate.

The present invention relates to a polyolefin-based multilayer microporous film which can be used as a battery separator, and to a method for producing the film. The polyolefin-based multilayer microporous film according to the present invention comprises: at least one layer comprising 90 to 100 wt % of polyethylene with a melting point of 130 to 140 DEG C; at least one other layer comprising 20 wt % or more of a heat-resistant resin; and 80 wt % or less of a filler selected from an organic filler, an inorganic filler, and a mixture thereof. The heat-resistant resin is preferably a semicrystalline polymer or an amorphous polymer. The semicrystalline polymer preferably has a degree of crystallinity of 10 to 45 % or a content heat of fusion of 20 to 90 J / g, a crystal melting temperature of 145 to 250 DEG C, and a glass transition temperature of -100 to 90 DEG C. The amorphous polymer has no crystals, and preferably has a glass transition temperature of 90 to 120 DEG C.

The present invention provides a pneumatic tire with reduced air columnar resonance noise level in comparison with the conventional pneumatic tires. The pneumatic tire comprises large-volume oblong holes 11 formed in a sidewall 10a on one side of a main groove 1 and small-volume oblong holes 12 formed in a sidewall 10b on the other side thereof, respectively, in which a width w1 and a depth d1 of the large-volume oblong hole 11 are at least not less than 0.4 mm and more than 0.05 times but less than 0.25 times a width W of the main groove 1, and a space p1 between the large-volume oblong holes 11 is at least not less than 0.8 mm and more than 0.2 times but less than 1.0 times the width W, a width w2 and a depth d2 of the small-volume oblong hole 12 are at least not less than 0.2 mm and more than 0.01 times but less than 0.05 times the width W, and a space p2 between the small-volume oblong holes 12 is at least not less than 0.4 mm and more than 0.04 times but less than 0.2 times the width W, and each height h of the oblong holes 11 and 12 in the depth direction of the main groove 1 is 50 to 80% of a depth D of the main groove 1.

A pneumatic tire is provided which makes it possible to achieve both steering stability on dry road surfaces and steering stability on wet road surfaces. This pneumatic tire is provided with a tread portion, a sidewall, and a bead, and has a mounting direction specified with respect to the vehicle, wherein: four main grooves are provided, which include a pair of center main grooves which extend inthe tread portion in the tire circumferential direction and a pair of shoulder main grooves which are outside of the center main grooves and extend in the tire circumferential direction; five land portions are defined by said main grooves, and the center main groove to the outside of the vehicle has a zigzag shape along the tire circumferential direction; multiple lug grooves are provided in theland portions and extend from the main grooves other than the center main groove that has a zigzag shape, towards both sides in the width direction of the tire, and terminate within the respective land portion.

Provided is a pneumatic tire in which a shoulder land section formed between a zigzag shoulder main groove and a ground contact end is divided into a plurality of blocks in the circumferential direction of the tire by slits, and uneven wear of blocks having different shapes can be suppressed. The pneumatic tire according to the present embodiment includes a shoulder land portion (14) that is formed between a ground contact end (E1) and a shoulder main groove (12A), and a plurality of slits (22) that divide the shoulder land portion into a plurality of blocks (23) in a tire circumferential direction (CD), in which the shoulder main groove is formed of a zigzag groove in which an inward bent portion (12A1) and an outward bent portion (12A2) are alternately and repeatedly disposed, the slit is connected to the inward bent portion and the outward bent portion, in the shoulder land portion, a chamfered portion (34) is provided on a groove wall facing the shoulder main groove, and in the chamfered portion, a surface width of the chamfered portion is set to increase from the outward bent portion side toward the inward bent portion side.

One embodiment of the present invention relates to an improved camming stem system including a head member, a plurality of cam lobes, a connection system, and a retraction system. The cam lobes may be selectively rotatable between an extended state and a retracted state with respect to at least one axle of the head member. The connection system may create an elongated, substantially rigid region by intercoupling the head member with a loop. The connection system is configured to create an elongated partially rigid region by intercoupling the head member with a loop, wherein the connection system comprises a twisted cable coupled between the head member and the loop, and wherein the loop is oriented substantially parallel to the at least one axle, and wherein the twisted cable includes a twisting radial angle of at least 90 degrees.

The invention provides a pneumatic tire which can exhibit excellent performances in all of wet property, uneven wear resistance and straight traveling performance of the tire. A pneumatic tire comprises on a tread surface (1) thereof: a center main groove (2) extending in a tire circumferential direction; a shoulder main groove (3) extending in the tire circumferential direction at a position awayfrom the center main groove (2) in a tire width direction; and inclined grooves (4) formed at predetermined intervals in the tire circumferential direction, wherein each inclined groove includes a first inclined portion (11) extending from the center main groove (2) toward the shoulder main groove (3) while increasing a width thereof, the first inclined portion 11 extending at a first angle alphawith respect to the tire circumferential direction, and a second inclined portion (12) continuously formed with the first inclined portion, the second inclined portion (12) extending at a second angle beta smaller than the first angle alpha with respect to the tire circumferential direction.

Provided is an all-weather SUV radial tire. The all-weather SUV radial tire comprises a first pattern part, a second pattern part, a third pattern part, a fourth pattern part and a fifth pattern part,wherein the first pattern part, the second pattern part, the third pattern part, the fourth pattern part and the fifth pattern part are partitioned by four vertical grooves. By adopting a certain tire sea-land ratio of a braking area, a cutter groove reinforcement design and the like, the braking performance and off-road traction performance under the influence of ice and snow of the all-weatherSUV radial tire are improved effectively. Under the condition that the total sea-land ratio is not changed, the total area of pattern blocks in the braking area and the total area of the braking areaare designed to be in the range from 69% to 71%, and the braking performance can be improved without influencing the performance of a snowfield. According to different pattern parts, three different cutter groove styles are adopted, different types of reinforcing blocks are additionally arranged on different cutter grooves to improve the rigidity of the pattern blocks, and by simulating the anglesand proportions of the reinforcing blocks and obtaining the optimal angle and the optimal volume proportion according to different parts, the braking performance is improved to the greatest extent onthe basis of effectively ensuring the ice-snow resistance performance and uniform abrasion; by combining with an under-shoulder chain-shaped pattern design, the lateral traction performance in the snowfield is improved, the braking performance is effectively improved, and the driving safety is improved.

The invention discloses a stiffness and toughness balanced ternary blend alloy material which is prepared from the following components in parts by weight: 30-90 parts of POK polyketone, 5-30 parts ofnylon elastomers, 5-70 parts of PA6, 0.05-0.3 part of a nucleating agent, 0.05-1 part of a lubricating agent, 0.05-0.3 part of a primary antioxidant and 0.05-0.3 part of an auxiliary antioxidant. Theinvention further provides a preparation method of the ternary blend alloy material. The preparation method comprises the following steps: mixing the components in parts by weight, and performing melt extrusion granulating by a twin-screw extruder unit, thereby obtaining the ternary blend alloy material disclosed by the invention. Compared with ordinary POK or nylon, the ternary blend alloy material disclosed by the invention maintains low water-absorbing quality and high wear resistance of the POK material, the characteristics of the nylon material such as high modulus and excellent chemicalresistance are additionally increased, and another function that is not owned by the two is increased, namely, the excellent characteristic of high toughness.

The invention provides a manufacturing process of an automobile cover plate. The manufacturing process comprises the following steps: laying a material: tiling a surface material on a net chain, positioning and nailing; flatly placing a PP (Propene Polymer) fly ash plate at a specified position of another net chain without fixing through nailing; adopting a retainer to retain the outer edge of a mix on the four sides; performing baking temperature softening: feeding the PP fly ash plate laid on the net chain into a baking box to perform the baking temperature softening, wherein the baking temperature is 200-400 DEG C and the baking temperature is 85-105 s; determining single-action drawing die blank holder stroke, wherein the size of the stroke guarantees that the plate is placed on the blank holder without lapping on a drawing male die and is 10-20 mm higher than a molded surface of the male die; when a single-action drawing die blank holder is ejected, the effective contact area of a slide guide surface of the blank holder is greater than 50-80 mm; upper and lower dies are guided by using a guide plate and are guided in for at least 50 mm before drawing is performed. According to the manufacturing process of the automobile cover plate, the rigidity of the cover plate is uniform, and early damage does not occur easily.

The invention discloses a method for producing woolen light and thin cashmere fabrics. The technological process includes the following steps in sequence: selecting raw material fiber → blending wool → surface PVA → carding roving → spun yarn → de-PVA → winding → weaving → finishing → obtaining Woolen light and thin cashmere fabric; wherein, the selection of raw material fiber process selects cashmere fibers, including cashmere long fibers; the surface PVA process includes drying the cashmere long fibers after the wool treatment in PVA solution; the de-PVA process It is PVA on the surface of the yarn after washing with water to remove the spun yarn. The invention breaks through the limitations of woolen spinning, introduces long cashmere fibers into woolen spinning, and makes cashmere long fibers fully exert the advantages of reinforcing yarns by hardening cashmere fibers, and obtains fluffy, light and soft cashmere fabrics through the woolen spinning method, and the process is environmentally friendly and efficient. It saves time and effort, and the source of raw materials is more abundant.

[Problem to be Solved] To provide an airless tire that allows both good drainage performance and good durability to be achieved and allows uneven wear resistance to be improved. [Solution] An airless tire 1 is provided that includes a cylindrical tread ring 2 that has a ground contact surface 5. Multiple through holes 8 and a reinforcing body 11 are provided in the tread ring 2, the multiple through holes 8 penetrating the tread ring 2 in a thickness direction of the tread ring 2. The multiple through holes 8 are arranged at intervals along a tire circumferential direction. The reinforcing body 11 includes a first reinforcing body 12 that extends in the tire circumferential direction in regions between adjacent through holes 8. Both ends (12e) of the first reinforcing body 12 in the tire circumferential direction terminate without being exposed from inner peripheral surfaces of the through holes 8.

The invention discloses an ultra-abrasion-resistant high-bearing oil-saving environment-friendly van tire. The ultra-abrasion-resistant high-bearing oil-saving environment-friendly van tire comprises a tire tread; two pattern blocks are arranged on the bilateral sides of the tire tread along a center line respectively; two shoulder portions are arranged on the bilateral sides of the tire tread respectively; main channels are formed between the pattern blocks and between each pattern block and the corresponding shoulder portion along the tire driving direction respectively; each pattern block is formed by a plurality of pitches along the tire driving direction through stacking; each shoulder portion is formed by a plurality of shoulder blocks along the tire driving direction through stacking; the lateral side of each shoulder portion and the lateral side of the corresponding pitch, which face to each other, are provided with a protruding portion and a concaved portion respectively. According to the ultra-abrasion-resistant high-bearing oil-saving environment-friendly van tire, the grip performance of the wetland and the low noise performance can be improved through thread patterns and accordingly the scattering capability of the tire on the rainwater is greatly improved and the rigidity of the tire and the wetland performance are balanced and the balance of the rigidity distribution and the pattern block density of every area of the tire is beneficial to the integral uniformity of the tire and accordingly the control performance of the tire is improved.