| 摘要 |
PROBLEM TO BE SOLVED: To provide the structure of a door frame capable of being simply executed to an opening section formed on a partition wall accurately. SOLUTION: A door frame comprises a door frame material 1 and parting materials 4, in which inner end sections are inserted into parting grooves 2 formed on both end faces of the door frame material 1 and fixed with adhesives. Several strips of saw-tooth-shaped sectional cut-erected projection pieces 5 are formed on the rears of the inner end sections of the parting materials 4, the surfaces of the parting materials 4 are closely attached to the opposed wall surfaces of the parting grooves 2 by the elastic force of the cut-erected projection pieces 5 when the inner end sections of the parting materials 4 are inserted into the parting grooves 2, and the execution of works having excellent accuracy is carried out while a part of an adhesive 6 is cured under the state, in which a part of the adhesive is engaged with the cut-erected projection pieces 5, and firm mounting is performed.
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