| 摘要 |
<p>PURPOSE: A hydraulic breaker is provided to improve joint and durability using a short bolt and a coupler. CONSTITUTION: A hydraulic breaker comprises a main body(1), a fastener(4), and a coupler(6). The main body comprises a back head(10) of the upper part, a cylinder(20) of the middle part, and a front head(30) of the bottom part. The fastener is coupled with the cylinder by being inserted from the upper part of the back head. The coupler is coupled with the circumference surface of contacting part of the cylinder and the front head.</p> |
