Hankook Tire Co.

China

Hankook Tire Co.

China

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Patent
Hankook Tire Co. | Date: 2017-05-10

The invention relates to a power transmission device of a green tire forming drum apparatus that includes a carcass drum shaft, left and right forming drums (2a,2b) mounted to the carcass drum shaft in a laterally symmetrical manner and being movable laterally in an axial direction of the carcass drum shaft, finger mounting supports for moving left and right turn-up fingers (3a,3b), respectively mounted to the left and right forming drums, up and down, and a driving unit (5) for supplying power required for rotational and lateral movement of the forming drums and up/down movement of the turn-up fingers. Power generated by a lower servomotor (6c) of the driving unit is transmitted to the forming drums via pull/push plates connected to a ball screw (7a), and power generated by an upper servomotor (6b) of the driving unit is transmitted to the turn-up fingers via pull/push plates connected to another ball screw (7b).


Patent
Hankook Tire Co. | Date: 2016-08-02

Disclosed is an automatic creel loading apparatus. The automatic creel loading apparatus is configured to unload creels, around which wires for use in manufacturing a tire are wound and which are stacked in multiple layers and multiple rows on a loading pallet, from the loading pallet and to carry and load the creels onto loading shafts of a creel stand, in order to supply the wires to the tire manufacturing process. The apparatus includes a loading base, on which the loading pallet loaded with the creels is disposed, an unmanned transport cart for reciprocatingly moving the loading base along transport rails, and a multi-axis rotational loading robot mounted to the loading base in order to unload the creels from the loading pallet and to carry and load each of the creels onto a corresponding one of the loading shafts of the creel stand.


The disclosed technology generally relates to an installation structure for installing a sensor module, and more particularly relates to an installation structure for installing a sensor module on a tire, and to a method of manufacturing the installation structure. In one aspect, the installation structure includes a sensor module housing configured to accommodate a sensor module and at least one sensor patch each comprising a bonding portion configured to attach to an inner side of a tire and a pressing portion configured to place and maintain the sensor module housing in contact with an installation position on the inner side of the tire. The pressing portion is configured to apply a downward pressure on a top portion of the sensor module housing by elastically extending and contracting.


The present invention relates to a structure for installing a sensor module on a tire and a method of manufacturing the structure. The structure includes: a sensor module housing accommodating the sensor module; and one or more sensor patch having a bonding portion that is attached to the inner side of a tire and a pressing portion that brings and maintains the sensor module housing in close contact with an installation position, in which the pressing portion presses down the top of the sensor module housing by extending and contracting. Accordingly, the structure has the advantage of conveniently mounting and separating a sensor module, being applicable to various sensors and various positions, and improving reliability of mounting the sensor module.


Patent
Hankook Tire Co. | Date: 2016-11-03

Disclosed is a power transmission device of a green tire forming drum apparatus. The green tire forming drum apparatus includes a carcass drum shaft, left and right forming drums mounted to the carcass drum shaft in a laterally symmetrical manner and being movable laterally in an axial direction of the carcass drum shaft, finger mounting supports for moving left and right turn-up fingers, respectively mounted to the left and right forming drums, up and down, and a driving unit for supplying power required for rotation& and later& movement of the forming drums and up/down movement of the turn-up fingers. Power generated by a lower servomotor of the driving unit is transmitted to the forming drums via pull/push plates connected to a ball screw, and power generated by an upper servomotor of the driving unit is transmitted to the turn-up fingers via pull/push plates connected to another bail screw.


Provided are a rubber composition for tire tread and a tire produced using this rubber composition. The rubber composition for tire tread includes 100 parts by weight of a raw material rubber, 10 to 30 parts by weight of carbon black, and 10 to 80 parts by weight of a master batch including a synthetic rubber that contains a high cis-1,4-polybutadiene rubber matrix and syndiotactic 1,2-polybutadiene dispersed in the rubber matrix. The rubber composition for tire tread can enhance the cut-chip performance and the initial grip performance of a tire produced therefrom.


The invention provides a pneumatic tire for resonance noise reduction, which includes a plurality of resonance noise-reducing members that are disposed along the circumferential direction of the inner liner of a tire, and are formed to protrude from the inner liner so as to reduce the interference of the resonance noises generated inside the tire. The resonance noise-reducing members are formed at an irregular interval of disposition along the circumferential direction of the inner liner. According to the invention, since the resonance noise-reducing members are formed integrally with the inner liner of a tire, the resonance noise-reducing members can be prevented from falling off from the tire even during high-speed driving of the vehicle, and can reduce the resonance noises generated inside the tire by reducing the phenomenon of resonant vibration occurring inside the tire. Thus, safe driving can be realized, with reduced disturbances caused by noises made during vehicle driving.


The present invention relates to a tire silent foam fixing structure for attaching a silent foam to a tire, and a manufacture method thereof. In detail, the present invention relates to a tire silent foam fixing structure that includes: a silent foam for reducing noise generated in a tire; and a plurality of silent foam fixing bands made of an extendable material and having an attaching portion fixed to the inner side of the tire and a pressing portion bringing and keeping the silent foam in contact with the inner liner, in which the pressing portion presses down the top of the silent foam by extending and contracting and a specific adhesive layer is not applied. Therefore, it is possible to easily attach the silent foam and to firmly attach the silent foam to the inner side of a tire without damaging the tire.


Patent
Hankook Tire Co. | Date: 2017-01-18

Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a method of producing a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord reduces tire deformation during driving, thus satisfying both driving performance and comfort.


Patent
Hankook Tire Co. | Date: 2017-07-26

Disclosed are a hybrid cord produced by plying and twisting high modulus yarns and polyamide monofilaments, and a tire including the same. More specifically, disclosed is a hybrid cord having a clear core-covering structure including a core comprising a polyamide monofilament and a covering spirally twisted around the core and comprising a high modulus yarn. The hybrid cord according to the present invention can clearly control the modulus ratio in each area, improving production efficiency of the cord and processability of the tire and reducing deviations of uniformity and driving performance. In addition, the tire using the hybrid cord according to the present invention reduces tire deformation during driving, thus satisfying both driving performance and comfort.

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