Title:
DOOR DAMPER BUFFER
Document Type and Number:
WIPO Patent Application WO/2011/111892
Kind Code:
A1
Abstract:
The present invention relates to a door damper buffer that can quickly switch the flow of fluid filled therein to quickly and precisely perform buffering. The door damper buffer of the present invention comprises: a body (52) in which fluid is filled and in which a spring (57) is inserted; a piston unit (54) inserted into the body (52) and elastically supported by the spring (57); and an actuator pin (56) coupled to the piston unit (54). The piston unit (54) comprises: a piston (542) defining a plurality of recesses (5423) in an outer peripheral surface thereof to enable the movement of the fluid; a disk (544) disposed at a front end portion of the piston (542) and coupled so as to be movable along the actuator pin (56); and a head (546) defining a plurality of stepped portions (5469) and grooves (5468) on an outer peripheral surface thereof so as to enable movement of the fluid.
Inventors:
KIM, Jae Hong (367-18 Hwagok-dong, Kangseo-gu, Seoul 157-010, 157-010, KR)
Application Number:
KR2010/001566
Publication Date:
September 15, 2011
Filing Date:
March 12, 2010
Export Citation:
Assignee:
MOONJU HARDWARE CO., LTD. (10B-3L Namdong Industrial Complex, 632-2 Namchon-dong Namdong-gu, Incheon 405-846, 405-846, KR)
(주)문주하드웨어 (인천 남동구 남촌동 623-2 남동공단 10B-3L, 405-846 Incheon, 405-846, KR)
(주)문주하드웨어 (인천 남동구 남촌동 623-2 남동공단 10B-3L, 405-846 Incheon, 405-846, KR)
International Classes:
E05F3/14; E05F3/04; F16F9/10
Attorney, Agent or Firm:
YOON, Yeopyo (WELL International, 5 Floor Pungwon Building,52-8 Nonhyeon-dong, Gangnam-gu, Seoul 135-010, 135-010, KR)
Claims: