| 摘要 |
An ink pad case for construction is provided to reduce costs by assembling an upper case and a lower case of the ink pad case even without a thermal welding process or an adhesive. An ink pad case for construction includes a lower case(100), an upper case(200), and a cap(300). The lower case has a rear end with a drum(120) wound with an ink ribbon(110) and a front end with a recess(140) for insertion of an ink absorption body(130). The drum has a shaft(121) equipped with an operating rod(150) having a front end with a press ring(151) for pressing the ink absorption body. The upper case has an upper surface with an opening(210) for insertion of the press ring of the operating rod and a bottom surface with a contact portion(220) which tightly contacts the recess. The upper case is assembled to the lower case. The cap has a groove(310), and is arranged in the opening such that the cap is detachable. One of the contact portion of the upper case and the recess of the lower case has a surface equipped with a seal ring(250) for sealing the gap formed between the recess and the contact portion. One of the recess of the lower case and the contact portion of the upper case has an inner surface equipped with a fastening element(160) with a stopper protrusion(161) and the other of the recess of the lower case and the contact portion of the upper case has an inner surface with a stopper groove(230) for insertion of the stopper protrusion such that the lower case and the upper case are assembled with each other. |
