JPH0470431U

JPH0470431U -

Info

Publication number: JPH0470431U
Application number: JP11351390U
Authority: JP
Priority date: 1990-10-31
Filing date: 1990-10-31
Publication date: 1992-06-22

Description

[Brief explanation of the drawing]

第１図は本考案に係る連結ネジ用送り機構を備
えたネジ締め機の要部の斜視図、第２図は第１図
のＸ−Ｘ線上の断面図、第３図はスプロケツトと
ラチエツト車との関係を示す斜視図、第４図ａ，
ｂ，ｃは連結ネジ用送り機構の作動態様説明図で
あり、第５図は従来の送り機構の説明図である。符号ａ……連結ネジ、１……ドライバビツト、
２……ネジ締め機本体、３……連結帯、５……ノ
ーズ部、９……スプロケツト、１０……ラチエツ
ト車、１１……係合部、１２……フランジ、１５
……ピン、１６……カム溝、１７……バネ片。 Fig. 1 is a perspective view of the main parts of a screw tightening machine equipped with a feeding mechanism for connecting screws according to the present invention, Fig. 2 is a sectional view taken along the line X-X of Fig. 1, and Fig. 3 is a sprocket and a ratchet wheel. A perspective view showing the relationship between the
b and c are explanatory diagrams of the operation mode of the connecting screw feeding mechanism, and FIG. 5 is an explanatory diagram of the conventional feeding mechanism. Code a... Connection screw, 1... Driver bit,
2...Screw tightening machine body, 3...Connection band, 5...Nose part, 9...Sprocket, 10...Ratchet wheel, 11...Engagement part, 12...Flange, 15
...Pin, 16...Cam groove, 17...Spring piece.

Claims

[Scope of Claim for Utility Model Registration] A screwdriver body having a driver bit and a drive mechanism for rotationally driving the screwdriver bit, and arranged so as to be movable relative to the screwdriver body in the axial direction of the driver bit. a sprocket having a nose portion having a guide opening for a connecting screw that holds and connects a large number of screws on the connecting band; and a ratchet wheel that engages with the sprocket at every predetermined rotational angle to rotate the sprocket at a predetermined rotational angle. a cam groove is formed that engages with the attached pin to rotationally drive the ratchet wheel during relative movement between the screw tightening machine main body and the nose portion, and the sprocket, ratchet wheel, and cam groove rotate the connecting screw A feeding mechanism for the connecting screw is configured to automatically feed the connecting screw to the axial center position of the driver bit, and a spring piece is interposed between the flange side surface at one end of the sprocket and the nose member to feed the flange at the other end of the sprocket. A brake mechanism in a connecting screw feeding mechanism, characterized in that a side surface is brought into pressure contact with a nose member.