KR890004869A - Compound writing instrument - Google Patents

Abstract

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Description

Compound writing instrument

As this is a public information case, the full text was not included.

5 is a plan view of the fitting member.

6 is a side view of the fitting member.

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 5. FIG.

* Explanation of symbols for main parts of the drawings

1: Front outer cylinder 2: Fitting member

3: rear outer cylinder 4: first core member

5: second lead member 6, 7: slider

8: clogging screw 9: creep

20: external thread 21: circular step

22: cylindrical shaft portion 23: fitting member shaft portion

24: rear stopper step 25: rotation stop projection

26: notch 27: hook shaft

27a: locking piece 28, 29: hole

30: cam locking projection 31: locking projection

32: hole 33: inner screw hole

41: lead pipe 42: lead delivery mechanism

42a: lead chuck 42b: lead external cylinder

42c: Chuck Ring 42d: Sleeve

43: guide 44: support

45: spring 51: connection holder

52: spring 60: groove

61: cam surface 61a: locking portion

62: support hole 62a: wall

70: groove 71: cam surface

71a: catching portion 73: iron needle delivery mechanism

74: lead chuck 74a: hole

75: iron needle 75a: large neck

76: rubber support 77: eraser rubber

Claims (1)

When rotating the rear outer cylinder (3) connected to be detachable while rotating freely at the rear end of the front outer cylinder (1), the first core member (4) inserted in the front outer cylinder (1) to be slid in the axial direction ) And the second pencil member (5) in the alternating pen writing mechanism, which is connected to be detachably freely attached to the rear end of the front outer cylinder (1) while the first pencil member (4) and the knock-type agent The rear member (3) is connected to the fitting member (2) attached so as to be able to slide in the axial direction, and the rear ends of the first and second pencil members (4, 5), respectively. First and second sliders 6 and 7 fitted to slide in the axial direction, cam faces 61 and 71 symmetrically formed on each of these sliders 6 and 7, and the rear outer cylinder 3 The cam is formed on the inner circumferential surface of the cam when the rear outer cylinder 3 is rotated forward and reverse. The cam engaging projection 30 alternately press-contacts to the 61 and 71 to alternately move forwards and retracts the first and second lead members 4 and 5, and is formed at the rear end of the fitting member 2. A stopper staircase 24 for restricting the retreat movement of the sliders 6 and 7, a protrusion formed on the outer circumferential surface of the stopper staircase 24 to protrude the first core member 4 and the second core member 5. In addition, the cam catching protrusion 30 is caught on one side at the position where the cam catching protrusion 30 is inserted, and the cam catching protrusion 30 at the position where the first lead member 4 enters and the second lead member 5 protrudes. Is equipped with a rotary stopper 25 and the eraser rubber 77 mounted on the front end of the knock type second pencil member 5 so as to be hung on the other side and protrude from the front end of the front outer cylinder 1. Composite writing instrument, characterized in that. ※ Note: The disclosure is based on the initial application.