FRAME LENGTH ADJUSTING DEVICE
The invention for a frame length adjusting device is disclosed, wherein when an elasticity providing member is slid and inserted into a second frame in a state that the elasticity providing member supports a retractable operation member, the retractable operation member is inserted into a communicat...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | The invention for a frame length adjusting device is disclosed, wherein when an elasticity providing member is slid and inserted into a second frame in a state that the elasticity providing member supports a retractable operation member, the retractable operation member is inserted into a communication hole such that the retractable operation member elastically protrudes from the communication hole, thereby improving assembly workability. The disclosed frame length adjusting device comprises: a first frame in which a plurality of through holes are formed along a longitudinal direction on a circumferential surface; a second frame which is axially inserted into the first frame and in which a communication hole that communicates with any selected one of the through holes is formed on a circumferential surface; a retractable operation member which is disposed to be retractable on the communication hole to be removably inserted into the through hole; and an elasticity providing member which is slid and inserted into the second frame while supporting the retractable operation member and guides the retractable operation member to be elastically inserted into the communication hole.
탄성제공부재가 출몰조작부재를 지지한 채로 제2프레임부에 슬라이드 삽입시 출몰조작부재가 연통홀부에서 탄성 출몰되도록 연통홀부로 삽입됨으로써, 조립 작업성을 향상시키는 프레임 길이 조절장치에 대한 발명이 개시된다. 개시된 프레임 길이 조절장치는 둘레면에 복수개의 관통홀부가 길이 방향을 따라 형성되는 제1프레임부와, 제1프레임부에 축 삽입되고, 관통홀부 중 선택된 어느 하나에 연통되는 연통홀부가 둘레면에 형성되는 제2프레임부와, 관통홀부로 이탈 가능하게 삽입되도록 연통홀부에 출몰 가능하게 배치되는 출몰조작부재 및 출몰조작부재를 지지한 채로 제2프레임부에 슬라이드 삽입되어 출몰조작부재가 연통홀부로 탄성 삽입되도록 안내하는 탄성제공부재를 포함하는 것을 특징으로 한다. |
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