Patents Assigned to NISHIKAWA SEIKI SEISAKUSHO CO., LTD.
  • Patent number: 11209235
    Abstract: At a second fitting part, inclination of the limb can be easily adjusted and corrected by an eccentric locator. The archery bow is characterized in that: the limb-side second fitting part of a limb has a projection with a convex cross section protruding from the surface of the limb of the limb-side second fitting part; the handle riser-side second fitting part of a handle riser has a housing part with a concave cross section to house the projection with a convex cross section; in the housing part, a side face near a bottom is smaller in diameter than an opening; and the limb and the handle riser are joined by joining the limb-side first fitting part and the handle riser-side first fitting part and joining the limb-side second fitting part and the handle riser-side second fitting part. The limb and handle are prevented from vibrating left and right.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: December 28, 2021
    Assignee: NISHIKAWA SEIKI SEISAKUSHO CO., LTD.
    Inventors: Yoshihisa Nishikawa, Yoshiyuki Kuribayashi, Sachio Hongo
  • Patent number: 11035642
    Abstract: By replacing a block with a plurality of holes reversed in the longitudinal direction of a handle riser, more types of cushion plunger mounting holes than cushion plunger mounting holes are obtained. A cushion plunger mounting device A includes: a block 31 including two cushion plunger mounting holes 32 for mounting a cushion plunger 41 which are deviated from the center of the block 31 in a manner to be arranged in a row in the longitudinal direction of the handle riser 21 when the block is attached to the handle riser 21, a slotted hole 22 penetrating from one side of the handle riser 21 of the archery 11 to the other side, in a manner to overlap the cushion plunger mounting holes 32 in the longitudinal direction of the archery 11 when the block 31 is attached to the handle riser 21, and a block housing hole 33 for housing the block 31, located around the slotted hole 22 on one side of the handle riser 21 without penetrating up to the other side.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: June 15, 2021
    Assignee: NISHIKAWA SEIKI SEISAKUSHO CO., LTD.
    Inventors: Yoshihisa Nishikawa, Yoshiyuki Kuribayashi, Sachio Hongo