JPS60145649U

JPS60145649U - Drive transmission device

Info

Publication number: JPS60145649U
Application number: JP3321684U
Authority: JP
Inventors: 川内　滋裕
Original assignee: 株式会社リコー
Priority date: 1984-03-08
Filing date: 1984-03-08
Publication date: 1985-09-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は歯車の噛合およびその解除のための構造に関す
る従来例を示す概略図、第２図は本考案の実施例の外観
を示す斜視図、第３図は第２図に示した実施例の概略断
面図、第４乃至７図は本考案実施例の作用を示す概略断
面図である。１０・・・・・・支軸、１１・・・・・・第１の歯車で
ある従動歯車、１２・・・・・・案内部材、１２ａ・・
開業内部、１２ｂ・・・・・・テーパ部、１３・・・・
・・駆動歯車部材、１３ａ・・・・・・軸、１３ｂ・・
・・・・揺動片、１３ｃ・・曲突出部、１４・・・・・
・駆動歯車、１９・・曲従動側のピッチ円規制部材、２
０・・・・・・揺動支軸、２１・・・・・・駆動側ノヒ
ッチ円規制部材、２１ｂ・・・・・・テーパ部。Fig. 1 is a schematic diagram showing a conventional example of a structure for meshing and disengaging gears, Fig. 2 is a perspective view showing the external appearance of an embodiment of the present invention, and Fig. 3 is an embodiment shown in Fig. 2. FIGS. 4 to 7 are schematic sectional views showing the operation of the embodiment of the present invention. DESCRIPTION OF SYMBOLS 10... Support shaft, 11... Driven gear which is a first gear, 12... Guide member, 12a...
Opening interior, 12b...Tapered part, 13...
...Drive gear member, 13a...Shaft, 13b...
...Swivel piece, 13c...Curved protrusion, 14...
・Drive gear, 19... Pitch circle regulating member on the driven side of the song, 2
0... Swinging support shaft, 21... Drive side hitch circle regulating member, 21b... Taper portion.

Claims

[Claims for Utility Model Registration] 1. A rotatable first gear, which integrally supports the first gear, and is located between an engaged position and a disengaged position of the gear with respect to a supporting portion of the device main body. a support shaft that can freely reciprocate at the top; and a disengagement guide that is supported coaxially with the first gear and has a flat surface and is formed to have a diameter larger than the diameter of the tip of the first gear. a rotatable second gear disposed at a position to mesh with the first gear; and a second gear having the second gear at one end;
The second gear is supported in a direction perpendicular to the gear tooth direction so as to be freely engageable and detachable from the gear 7, and has a mechanism for meshing the second gear with the first gear. At both ends,
The gears are arranged at intervals longer than the distance from the axis of the second gear to the tips of the teeth and shorter than the longitudinal length of the mesh release guide, and immediately after the support shaft moves, the A drive transmission device comprising: a gear support member having a protrusion configured to engage with a disengaging guide portion of a guide member. 2. The drive transmission device according to claim 1, wherein a tapered portion is provided at both longitudinal ends of the disengagement guide portion of the guide member. 3 Utility model registration claim 1, in which pitch circle regulating portions with an outer diameter corresponding to the pitch circle diameter of the gears are provided at opposing positions on the side edges in the gear tooth direction of each of the first and second gears. drive transmission device. 4 Among the axial ends of the pitch circle regulating part on the first gear side, a taper is formed at the end on the device main body side, and when setting the meshing position of the support shaft, this taper is connected to the protruding part of the gear support member. A drive transmission device according to claim 3, which is disposed opposite to the device on the main body side of the device.