JPH0132095Y2

JPH0132095Y2 -

Info

Publication number: JPH0132095Y2
Application number: JP1984139296U
Authority: JP
Priority date: 1984-09-13
Filing date: 1984-09-13
Publication date: 1989-10-02
Also published as: JPS6155719U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、軸とノブとの連結構造、特にはプリ
ンタやタイプライタにおける紙送り軸と紙送りノ
ブとの連結構造に関するものである。[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a connection structure between a shaft and a knob, particularly a connection structure between a paper feed shaft and a paper feed knob in printers and typewriters.

（従来の技術）プリンタやタイプライタなどにおいて、その紙
送り軸に対し紙送りノブを相対的に回転不能であ
るが軸方向には摺動自在であるように取り付け、
このノブの軸方向への移動によつて紙送り伝達歯
車列の一部の噛み合いを外し、この状態で記録紙
の位置調整を可能とすることがある。かかる軸と
ノブとの連結構造において、ノブを軸に対しクリ
ツクする構造のものとして、例えば実公昭56−
23688号公報がある。この従来構造にあつては、
軸の先端部に形成してある割り溝に、ノブに固着
したピンが係入することによつて、ノブは軸に対
し相対的に回転不能であるが軸方向には摺動自在
となつている。そしてノブの筒部に形成された窓
穴にクリツク用の球体が挿置され、この球体はノ
ブの筒部外周に装着してあるリング状の板バネに
て押圧されることによつて、軸外周面のクリツク
溝に弾接するようにしてある。(Prior Art) In printers, typewriters, etc., a paper feed knob is attached to the paper feed shaft so that it cannot rotate relative to the paper feed shaft, but is slidable in the axial direction.
By moving this knob in the axial direction, a part of the paper feed transmission gear train may be disengaged, and in this state, the position of the recording paper may be adjusted. In the connection structure between the shaft and the knob, for example, there is a structure in which the knob is clicked against the shaft.
There is a publication number 23688. In this conventional structure,
By engaging the pin fixed to the knob in the split groove formed at the tip of the shaft, the knob cannot rotate relative to the shaft but can freely slide in the axial direction. There is. A click sphere is inserted into the window hole formed in the cylindrical part of the knob, and this sphere is pressed by a ring-shaped leaf spring attached to the outer periphery of the cylindrical part of the knob, so that the shaft It is designed to come into elastic contact with the click groove on the outer circumferential surface.

（考案が解決しようとする問題点）上記公知構造によると、板バネをノブ筒体に装
着するに際し板バネを開いて行なうことが必要で
あり、この板バネ装着時にクリツク用の球体が窓
穴から外れ易いこともあつて、組立の作業性に問
題があつた。(Problems to be Solved by the Invention) According to the above-mentioned known structure, it is necessary to open the leaf spring when attaching the leaf spring to the knob barrel, and when the leaf spring is attached, the click sphere is inserted into the window hole. There was also a problem with ease of assembly as it was easy to come off.

そこで本考案は、ノブを軸に対し摺動自在にか
つノブと軸とが一体的に回動するように連結し、
しかもノブと軸との間にクリツクモーシヨンを付
与する連結構造とする場合に、組立を非常に容易
に行ない得るようにすることを目的とするもので
ある。 Therefore, the present invention connects the knob so that it can slide freely on the shaft and rotates integrally with the knob,
Moreover, it is an object of the present invention to provide a connection structure that provides click motion between the knob and the shaft, which can be assembled very easily.

（問題点を解決するための手段）上記目的を達成するために、軸端部はその一部
に平坦面を有する非円形断面に形成され、この軸
端部の円周外面に複数のクリツク溝を有する一方
で、この軸端部に連結されるノブ筒体は、当該軸
端部を相対的に回転不能にかつ軸方向に摺動自在
とする軸穴を有している。筒体の前方部は、軸端
部の円周外面のクリツク溝を露出せしめるべく形
成された切欠部により半円筒体をなし、この半円
筒体の外周には、この半円筒体の切欠部と対向す
る平坦な対向片と、この対向片に形成してあり切
欠部より露出したクリツク溝と係合可能なクリツ
ク突起と、対向片の両端部より半円筒体の外側面
にそつて延伸する側片と、この両側片の端部に屈
成してあり半円筒体の切欠部の反対側に凹設して
ある係止溝に係止可能な係止片とからなるクリツ
ク板バネが、半円筒体の前端面側より装着可能に
設けてある。そして半円筒体の前端面に固着され
た補助環体によりクリツク板バネは半円筒体に対
する軸方向への移動が規制されている。(Means for Solving the Problems) In order to achieve the above object, the shaft end is formed to have a non-circular cross section with a flat surface in part, and a plurality of click grooves are formed on the circumferential outer surface of the shaft end. On the other hand, the knob cylinder connected to the shaft end has a shaft hole that makes the shaft end relatively non-rotatable and slidable in the axial direction. The front part of the cylindrical body forms a semi-cylindrical body with a notch formed to expose the click groove on the circumferential outer surface of the shaft end. A flat opposing piece, a click protrusion formed on the opposing piece and capable of engaging with a click groove exposed from the notch, and a side extending from both ends of the opposing piece along the outer surface of the semi-cylindrical body. A click leaf spring, which is made up of a locking piece bent at the ends of both pieces and capable of being locked in a locking groove recessed on the opposite side of the notch of the semi-cylindrical body, It is provided so that it can be attached from the front end surface side of the cylindrical body. The click leaf spring is restricted from moving in the axial direction with respect to the semi-cylindrical body by an auxiliary ring fixed to the front end surface of the semi-cylindrical body.

（実施例）第１図および第２図において、軸１０は、その
軸端部１１の一部が平坦面１２に形成され、かつ
円周外面に複数（実施例では２個）のクリツク溝
１３，１３が並設されている。ノブ２０は、軸端
部に１１に連結するための筒体２１を有してい
る。筒体２１の軸穴２２は、実質的に軸端部１１
の断面形状に対応した形状に形成され、この軸穴
２２に軸端部１１が挿入される（第３図参照）。
この嵌合構造によつてノブ２０は前端部１１に対
し軸方向への摺動が許容され、その一方で両者は
相対的に回転不能に連結されることになる。筒体
２１の前方部は、切欠部２３が形成されているこ
とによつて半円筒体２４になつており、この切欠
部において軸端部１１の円周外面のクリツク溝１
３，１３が部分的に露出している。半円筒体２４
の外周は、その端面側よりスライドして装着した
クリツク板バネ３０にて覆われている。このクリ
ツク板バネ３０は、半円筒体２４の切欠部２３と
対向する平坦な対向片３１と、この対向片に形成
してあり切欠部２３より露出したクリツク溝１
３，１３のいずれかと選択的に弾性的に係合可能
なクリツク突起３２と、対向片３１の両端部より
半円筒体２４の外側面にそつて延伸する側片３
３，３３と、この両側片の端部に屈成してあり半
円筒体２４の切欠部２３の反対側に凹設してある
係止溝２５，２５に係止可能な係止片３４，３４
とからなつており、補助環体４０を連結する前の
状態において、半円筒体２４の前端面側より軸方
向にスライドして装着可能である。そして半円筒
体２４の前端面に補助環体４０がネジ４１を介し
て固着されることによつてクリツク板バネ３０は
半円筒体２４に対し軸方向の移動が規制されてい
る。補助環体４０の軸穴４２は、軸１０が遊嵌す
る円形断面に形成されている。(Example) In FIGS. 1 and 2, a shaft 10 has a shaft end 11 partially formed into a flat surface 12, and a plurality of (two in the example) click grooves 13 on the circumferential outer surface. , 13 are arranged in parallel. The knob 20 has a cylindrical body 21 for connecting to the shaft end 11. The shaft hole 22 of the cylindrical body 21 is substantially connected to the shaft end 11.
The shaft end portion 11 is inserted into the shaft hole 22 (see FIG. 3).
This fitting structure allows the knob 20 to slide in the axial direction with respect to the front end 11, while the two are connected to each other so that they cannot rotate relative to each other. The front part of the cylindrical body 21 has a notch 23 formed therein to form a semi-cylindrical body 24, and the click groove 1 on the circumferential outer surface of the shaft end 11 is formed in this notch.
3 and 13 are partially exposed. Semi-cylindrical body 24
The outer periphery of is covered with a click leaf spring 30 that is slid and attached from the end surface side. This click plate spring 30 includes a flat opposing piece 31 facing the notch 23 of the semi-cylindrical body 24, and a click groove 1 formed in this opposing piece and exposed from the notch 23.
3 and 13, and a side piece 3 extending along the outer surface of the semi-cylindrical body 24 from both ends of the opposing piece 31.
3, 33, and a locking piece 34 that can be locked in locking grooves 25, 25, which are bent at the ends of the two side pieces and are recessed on the opposite side of the notch 23 of the semi-cylindrical body 24. 34
It can be attached by sliding in the axial direction from the front end surface side of the semi-cylindrical body 24 in a state before the auxiliary ring body 40 is connected. By fixing the auxiliary ring body 40 to the front end surface of the semi-cylindrical body 24 via screws 41, the click leaf spring 30 is restricted from moving in the axial direction with respect to the semi-cylindrical body 24. The shaft hole 42 of the auxiliary ring body 40 is formed to have a circular cross section into which the shaft 10 is loosely fitted.

なお、半円筒体２４へのクリツク板バネ３０お
よび補助環体４０の取付けは、軸１０を装着する
前の組立段階において予め行なわれ、しかる後に
軸１０を横方向より強入することによつて、軸１
０とノブ２０とは第１図示の如く連結される。こ
の連結構造によつて、ノブ２０を回すとそれと一
緒に軸１０が回動し、また軸１０に対しノブ２０
を軸方向に引くまたは押すことによつて、ノブ２
０は軸１０に対し軸方向の位置を替えることがで
きる。 Note that the click leaf spring 30 and the auxiliary ring body 40 are attached to the semi-cylindrical body 24 in advance during the assembly stage before the shaft 10 is attached, and then the shaft 10 is forcefully inserted from the side. , axis 1
0 and the knob 20 are connected as shown in the first figure. With this connection structure, when the knob 20 is turned, the shaft 10 rotates with it, and the knob 20 also rotates with respect to the shaft 10.
by pulling or pushing axially on knob 2.
0 can change its axial position with respect to the axis 10.

（考案の効果）本考案による軸とノブとの連結構造によれば、
クリツクモーシヨンを付与するためのクリツク板
バネの半円筒体への取付けが迅速かつ容易に行な
え、また構造的にも簡単であるから、製造コスト
を低下することができる。また補助環体を固着し
た後は、クリツク板バネは半円筒体から簡単に外
れることもなく、したがつてノブユニツトとして
の取扱いおよび軸への着脱操作が容易である。(Effect of the invention) According to the connection structure between the shaft and the knob according to the invention,
Since the click leaf spring for imparting click motion can be quickly and easily attached to the semi-cylindrical body, and the structure is simple, manufacturing costs can be reduced. Further, after the auxiliary ring is fixed, the click leaf spring does not easily come off from the semi-cylindrical body, so it is easy to handle as a knob unit and to attach and detach from the shaft.

[Brief explanation of the drawing]

図面は本考案による軸とノブとの連結構造の一
例を示すものであつて、第１図はその断面図、第
２図はその上面図、第３図は第１図−線断面
図である。１０……軸、１１……軸端部、１２……平坦
部、１３……クリツク溝、２０……ノブ、２１…
…筒体、２２……軸穴、２３……切欠部、２４…
…半円筒体、２５……係止溝、３０……クリツク
板バネ、３１……対向片、３２……クリツク突
起、３３……側片、３４……係止片、４０……補
助環体。 The drawings show an example of a connection structure between a shaft and a knob according to the present invention, in which FIG. 1 is a sectional view thereof, FIG. 2 is a top view thereof, and FIG. 3 is a sectional view taken along the line of FIG. 1. . 10... Shaft, 11... Shaft end, 12... Flat part, 13... Click groove, 20... Knob, 21...
... Cylinder, 22 ... Shaft hole, 23 ... Notch, 24 ...
... Semi-cylindrical body, 25 ... Locking groove, 30 ... Click plate spring, 31 ... Opposing piece, 32 ... Click protrusion, 33 ... Side piece, 34 ... Locking piece, 40 ... Auxiliary ring body .

Claims

[Claims for Utility Model Registration] Includes a shaft in which a click groove is formed on the circumferential outer surface of the shaft end having a partially flat surface, and a knob having a cylindrical body attached to the shaft end. The cylindrical body has a shaft hole into which the shaft end fits relatively unrotatably and slidably in the axial direction, and the front part thereof has a notch that exposes the circumferential outer surface. It is formed into a semi-cylindrical body, and the semi-cylindrical body includes a flat opposing piece that faces the notch of the semi-cylindrical body, and a flat opposing piece that engages with the click groove exposed from the notch. a click protrusion that can be fitted together; a side piece extending along the outer surface of the semi-cylindrical body from both ends of the opposing piece; and the notch of the semi-cylindrical body bent at the ends of the both side pieces. A click plate spring consisting of a locking piece that can be locked in a locking groove recessed on the opposite side of the
The semi-cylindrical body is provided so as to be attachable from the front end surface thereof, and an auxiliary ring body is fixed to the front end surface of the semi-cylindrical body for regulating the movement of the click leaf spring in the axial direction. A connecting structure between the shaft and the knob.