JPH0492148A - Cylindrical cam - Google Patents
Cylindrical camInfo
- Publication number
- JPH0492148A JPH0492148A JP20597890A JP20597890A JPH0492148A JP H0492148 A JPH0492148 A JP H0492148A JP 20597890 A JP20597890 A JP 20597890A JP 20597890 A JP20597890 A JP 20597890A JP H0492148 A JPH0492148 A JP H0492148A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- cam groove
- cylindrical block
- cam
- forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009751 slip forming Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Character Spaces And Line Spaces In Printers (AREA)
- Gears, Cams (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は円筒カムに関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a cylindrical cam.
［従来の技術］
例えば、プリンタにおいては、特開昭６２−２３４９７
０号公報に示すように、ヘッドを桁方向に移動させるた
めに円筒カムを用いている。[Prior art] For example, in printers, Japanese Patent Application Laid-Open No. 62-23497
As shown in Publication No. 0, a cylindrical cam is used to move the head in the digit direction.
従来１円筒カムのカム溝は、円筒ブランクの外形をＮＣ
旋盤等で切削加工して形成している。また特開昭６１−
１４３１６５号公報に示すように、転造方法により成形
する方法も提案されている。The cam groove of the conventional 1-cylindrical cam was created by adjusting the external shape of the cylindrical blank by NC.
It is formed by cutting with a lathe, etc. Also, JP-A-61-
As shown in Japanese Patent No. 143165, a method of forming by a rolling method has also been proposed.
［発明が解決しようとする課題］
上記ＮＣ旋盤による方法は、１個づつカム溝加工を行う
必要があり、またカム溝加工に多大の時間を要し量産的
でないこと等により、コスト高になるという問題点があ
った。[Problems to be Solved by the Invention] The above method using an NC lathe requires machining the cam grooves one by one, and also requires a lot of time to machining the cam grooves, making it difficult to mass-produce, resulting in high costs. There was a problem.
上記転造方法は、前記ＮＣ旋盤による方法より加工時間
が短く、量産性に優れている。しかし、円筒カムの材質
は転造可能なものに限られる。The above-mentioned rolling method has a shorter machining time than the above-mentioned method using an NC lathe, and is superior in mass productivity. However, the material of the cylindrical cam is limited to those that can be rolled.
本発明の目的は、大幅なコストダウンが図れる円筒カム
を提供することにある。An object of the present invention is to provide a cylindrical cam that can significantly reduce costs.
［課題を解決するための手段］
上記目的は、カム溝の一方の側面部と底面部を形成した
円筒状ブロックと、前記カム溝の他方の側面部を形成し
た円筒状ブロックとの組合せによってカム溝を成形する
ことにより達成される。[Means for Solving the Problems] The above object is to create a cam by combining a cylindrical block forming one side surface and a bottom surface of a cam groove, and a cylindrical block forming the other side surface of the cam groove. This is accomplished by molding a groove.
［作用］
円筒カムは、カム溝の部分で分割された複数の円筒状ブ
ロックを組合せてなり、これらの円筒状ブロー２りはグ
イキャスト、粉末成形、プラスチッりによる射出板形等
で製造可能であるので、大幅なコストダウンが図れると
共に、材質の選択幅が広い、また分割された複数の円筒
状ブロックを組合せてなるので、往路カム溝のみを有す
る場合は勿論のこと、往路カム溝及び復路カム溝が連続
して無端状に形成されている場合にも製造できる。[Function] The cylindrical cam is made up of a combination of multiple cylindrical blocks divided at the cam grooves, and these cylindrical blowers can be manufactured by gui-casting, powder molding, plastic injection plate shape, etc. Because of this, it is possible to significantly reduce costs, and there is a wide range of materials to choose from.Also, since it is made by combining multiple divided cylindrical blocks, it goes without saying that it has only an outgoing cam groove, but it also has an outgoing cam groove and a returning path. It can also be manufactured when the cam groove is continuous and endless.
［実施例］ 以下１本発明の一実施例を図により説明する。[Example] An embodiment of the present invention will be described below with reference to the drawings.
第１図及び第２図に示すように、円筒カム１は、往路カ
ム溝２ａと復路カム溝２ｂが連続して無端状に形成され
、カム溝２の部分で分割された３個の第１、第２及び第
３の円筒状ブロック３．４．５からなっている。なお、
６は回転軸、７は回転軸６に固定された従動歯車を示す
０次に円筒状ブロック３．４．５の構造について説明す
る。As shown in FIGS. 1 and 2, the cylindrical cam 1 has an outward cam groove 2a and a return cam groove 2b continuously formed in an endless shape, and three first cam grooves divided by the cam groove 2. , second and third cylindrical blocks 3.4.5. In addition,
The structure of the zero-order cylindrical block 3.4.5, where 6 is a rotating shaft and 7 is a driven gear fixed to the rotating shaft 6, will be described.
第１の円筒状ブロック３（第２図、第３図参照）
外側円筒部３ａの左側には、カム溝２の右側面を形成す
る側面部３ｂと、カム溝２の底面を形成する底面ｇ８３
ｃとが形成されている。底面部３ｃの左側には該底面部
３ｃより径小の径小部３ｄが形成され、底面部３ｃと径
小部３ｄとの肩部は第２の円筒状ブロック４の軸方向を
位置決めする位置決め部３ｅとなっている。また径小部
３ｄには、外周部に第２の円筒状ブロック４の回転方向
を位置決めする位置決め突起部３ｆと、第３の円筒状ブ
ロック５を結合させるための２個の結合用穴３ｈとが設
けられ、左側面に２個の突起部３ｇが設けられている。The first cylindrical block 3 (see FIGS. 2 and 3) has a side surface portion 3b forming the right side surface of the cam groove 2 and a bottom surface g83 forming the bottom surface of the cam groove 2 on the left side of the outer cylindrical portion 3a.
c is formed. A small diameter part 3d smaller in diameter than the bottom part 3c is formed on the left side of the bottom part 3c, and a shoulder between the bottom part 3c and the small diameter part 3d is used for positioning the second cylindrical block 4 in the axial direction. It is part 3e. The small diameter portion 3d also has a positioning protrusion 3f for positioning the rotational direction of the second cylindrical block 4 on the outer periphery, and two coupling holes 3h for coupling the third cylindrical block 5. is provided, and two protrusions 3g are provided on the left side surface.
また第１の円筒状ブロック３の軸中心部には回転軸６が
圧入される軸取付は穴３１が形成され。Further, a shaft mounting hole 31 is formed in the center of the shaft of the first cylindrical block 3, into which the rotating shaft 6 is press-fitted.
この軸取付は穴３１の右側端面には回転軸６に圧入され
たビン８が係合して第１の円筒状ブロック３の回転を規
制する回転規制用溝３ｊが形成されている。For this shaft attachment, a rotation regulating groove 3j is formed on the right end surface of the hole 31, in which the pin 8 press-fitted into the rotating shaft 6 engages to regulate the rotation of the first cylindrical block 3.
第２の円筒状ブロック４（第２図、第４図参照）
外側円筒部４ａの右側面には、第１の円筒状ブロック３
の側面部３ｂ及び底面部３ｃと組合せられてカム溝２の
左側面を形成する側面部４ｂが形成されている。外側円
筒部４ａの左側には、カム溝２の右側面を形成する側面
部４Ｃと、カム溝２の底面を形成する底面部４ｄとが形
成されている。また内径部には、第１の円筒状ブロック
３の底面部３Ｃに嵌挿される嵌挿部４ｅと、この嵌挿部
４ｅより径小で第１の円筒状ブロック３に遊嵌される遊
嵌部４ｆとが形成され、嵌挿部４ｅと遊嵌部４ｆとの肩
部は第１の円筒状ブロック３の位置決め部３ｅに当接し
て軸方向を位置決めする位置決め部４ｇとなっている。A second cylindrical block 4 (see FIGS. 2 and 4) A first cylindrical block 3 is located on the right side of the outer cylindrical portion 4a.
A side surface portion 4b that is combined with the side surface portion 3b and bottom surface portion 3c to form the left side surface of the cam groove 2 is formed. A side surface portion 4C forming the right side surface of the cam groove 2 and a bottom surface portion 4d forming the bottom surface of the cam groove 2 are formed on the left side of the outer cylindrical portion 4a. Further, the inner diameter portion includes a fitting portion 4e that is fitted into the bottom surface portion 3C of the first cylindrical block 3, and a loose fitting portion 4e that is smaller in diameter than the fitting portion 4e and is loosely fitted into the first cylindrical block 3. A shoulder portion between the insertion portion 4e and the loose fitting portion 4f serves as a positioning portion 4g that abuts against the positioning portion 3e of the first cylindrical block 3 to position the first cylindrical block 3 in the axial direction.
また遊嵌部４ｆには第１の円筒状ブロック３の位置決め
突起部３ｆが係合された回転方向の位置決めを行う位置
決め溝４ｈが形成されている。Further, a positioning groove 4h is formed in the loose fitting portion 4f, and is engaged with the positioning protrusion 3f of the first cylindrical block 3 for positioning in the rotational direction.
第３の円筒状ブロック５（第２図、第５図参照）
外側円筒部５ａの右側面には、第２の円筒状ブロック４
の側面部４Ｃ及び底面部４ｄと組合せられてカム溝２の
左側面を形成する側面部５ｂが形成され、外側円筒部５
ａの内側には第２の円筒状ブロック４の底面部４ｄに嵌
挿される嵌挿部５ｃが形成されている。また外側円筒部
５ａの左側は側壁部５ｄとなっており、この側壁部５ｄ
の中心軸部には回転軸６に圧入される軸取付は穴５ｅが
形成されている。また側壁部５ｄには、第１の円筒状ブ
ロック３の結合用穴３ｈに係合される２個の係合爪５ｆ
と、この係合爪５ｆの外側部分に第１の円筒状ブロック
３の突起部３ｇが挿入される窓５ｇが形成されている。Third cylindrical block 5 (see FIGS. 2 and 5) A second cylindrical block 4 is provided on the right side of the outer cylindrical portion 5a.
A side surface portion 5b is formed which is combined with the side surface portion 4C and the bottom surface portion 4d to form the left side surface of the cam groove 2, and the outer cylindrical portion 5
A fitting part 5c is formed inside a to be fitted into the bottom part 4d of the second cylindrical block 4. Further, the left side of the outer cylindrical portion 5a is a side wall portion 5d.
A shaft mounting hole 5e is formed in the central shaft portion of the rotary shaft 6 to be press-fitted into the rotary shaft 6. Further, the side wall portion 5d has two engaging claws 5f that are engaged with the coupling holes 3h of the first cylindrical block 3.
A window 5g into which the protrusion 3g of the first cylindrical block 3 is inserted is formed on the outer side of the engagement claw 5f.
次に円筒状ブロック３．４．５の組立について説明する
。第１の円筒状ブロー、り３の位置決め突起部３ｆに第
２の円筒状ブロック４の位置決め溝４ｈを合せ、嵌挿部
４ｅを底面部３ｃに嵌挿させて位置決め部４ｇを位置決
め部３ｅに当てる。これにより、第２の円筒状ブロック
４０回転方向は位置決め突起部３ｆが位置決め溝４ｈに
係合して規制される。Next, the assembly of the cylindrical block 3.4.5 will be explained. Align the positioning groove 4h of the second cylindrical block 4 with the positioning protrusion 3f of the first cylindrical blow holder 3, fit the fitting part 4e into the bottom part 3c, and connect the positioning part 4g to the positioning part 3e. guess. Thereby, the rotational direction of the second cylindrical block 40 is regulated by the positioning protrusion 3f engaging with the positioning groove 4h.
次に第３の円筒状ブロック５の窓５ｇを第１の円筒状ブ
ロック３の突起部３ｇに挿入し、嵌挿部５ｃを嵌挿部４
ｅに嵌挿させると、係合爪５ｆが結合用穴３ｈに係合し
、第３の円筒状ブロック５は第１の円筒状ブロック３に
一体に結合される。Next, the window 5g of the third cylindrical block 5 is inserted into the protrusion 3g of the first cylindrical block 3, and the fitting part 5c is inserted into the fitting part 4.
e, the engaging claw 5f engages with the coupling hole 3h, and the third cylindrical block 5 is integrally coupled to the first cylindrical block 3.
また第２の円筒状ブロック４は第３の円筒状ブロック５
の側壁部５ｄによって位置決め部４ｇが位置決め部３ｅ
に圧接され、第２の円筒状ブロック４は第１及び第３の
円筒状ブロック３、円筒状ブロック５に一体に結合され
る。これにより、第１の円筒状ブロー、り３の側面部３
ｂ、底面部３ｃと第２の円筒状ブロー２り４の側面部４
ｂ及び第２の円筒状ブロック４の側面部４ｃ１底面部４
ｄと第３の円筒状ブロック５の側面部５ｂとでカム溝２
が形成される。Further, the second cylindrical block 4 is a third cylindrical block 5.
The positioning part 4g is connected to the positioning part 3e by the side wall part 5d.
The second cylindrical block 4 is integrally connected to the first and third cylindrical blocks 3 and 5. As a result, the side surface 3 of the first cylindrical blow 3
b, bottom surface portion 3c and side surface portion 4 of the second cylindrical blow 24;
b and the side surface portion 4c1 of the second cylindrical block 4 and the bottom surface portion 4
d and the side surface portion 5b of the third cylindrical block 5 form the cam groove 2.
is formed.
このように、円筒カムｌは、カム溝２の部分で分割され
た複数の円筒状ブロック３．４，５を組合せてなり、各
円筒状ブロック３．４．５はダイキャスト、粉末成形、
プラスチックによる射出成形等で製造可能であるので、
大幅なコストダウンが図れると共に、材質の選択幅が広
い。また往路カム溝２ａのみを有する場合のみでなく、
往路カム溝２ａ及び復路カム＠２ｂが連続して無端状に
形成されている場合にも製造できる。In this way, the cylindrical cam l is formed by combining a plurality of cylindrical blocks 3.4, 5 divided at the cam groove 2, and each cylindrical block 3.4.5 is formed by die-casting, powder molding,
It can be manufactured using plastic injection molding, etc.
Not only can you achieve significant cost reductions, but you can also choose from a wide range of materials. Moreover, not only the case where only the forward cam groove 2a is provided,
It can also be manufactured in a case where the forward cam groove 2a and the backward cam @2b are continuously formed in an endless shape.
第６図は本発明の他の実施例を丞す、前記実施例は円筒
状ブロック３．４．５を一体に係合するのに、係合爪５
ｆを用いたが、回転軸６にワッシャ９を取付けてもよい
。即ち、第１の円筒状ブごツク３と第３の円筒状ブロッ
ク５との回転方向は、窓５ｇに突起部３ｇを係合させて
規制させ、軸方向はワッシャ９によって規制される。FIG. 6 shows another embodiment of the invention, in which the engagement pawl 5 is used to engage the cylindrical blocks 3.4.5 together.
Although f is used, a washer 9 may be attached to the rotating shaft 6. That is, the rotation direction of the first cylindrical block 3 and the third cylindrical block 5 is regulated by engaging the protrusion 3g with the window 5g, and the axial direction is regulated by the washer 9.
［発明の効果］
以上の説明から明らかなように、本発明によれば、カム
溝の一方の側面部と底面部を形成した円筒状ブロックと
、前記カム溝の他方の側面部を形成した円筒状ブロック
との組合せによって成形してなるので、ダイキャスト、
粉末成形、プラスチック射出成形等で製造可能であり、
大幅なコストダウンが図れると共に、材質の選択幅が広
く、また往路カム溝のみを有する場合は勿論のこと、往
路カム溝及び復路カム溝が連続して無端状に形成されて
いる場合にも製造できる。[Effects of the Invention] As is clear from the above description, according to the present invention, a cylindrical block forming one side surface and a bottom surface of the cam groove, and a cylindrical block forming the other side surface of the cam groove. Since it is formed by combining with shaped blocks, die casting,
It can be manufactured by powder molding, plastic injection molding, etc.
In addition to achieving significant cost reductions, there is a wide range of materials to choose from, and it can be manufactured not only in cases where there is only an outward cam groove, but also in cases where the outward and return cam grooves are continuously formed in an endless shape. can.
第１図は本発明の一実施例を示す外観正面図、第２図は
第１図の断面図、第３図は第１の円筒状ブロックを示し
、（ａ）は正面図、（ｂ）は断面図、（ｃ）は（ｂ）の
側面図、第４図は第２の円筒状ブロー２りを示し、（ａ
）は正面図、（ｂ）は断面図、（Ｃ）は（ｂ）の側面図
、第５図は第３の円筒状ブロックを示し、（ａ）は正面
図、（ｂ）は断面図、（ｃ）は（ｂ）の側面図、第６図
は本発明の他の実施例の一部を示す断面図である。
１：円筒カム、 ２：カム溝、２ａ：往路カム
溝、 ２ｂ＝復路カム溝、３：円筒状ブロック、
３ｂ＝側面部、３ｃ：底面部、 ４：円筒状
ブロック、４ｂ、４ｃ：側面部、 ４ｄ：底面部、５：
円筒状ブロック、 ５ｂ＝側面部。
代理人 弁理士 １）辺 良 徳
２０：ａ外カム溝
２ｂ’檀ｙ各力へ３１Ｌ
第１図
第２図
３ｃ、底面部
４：円禎状プロ１．フ
５；円筒１欠アＯす７
５ｂ：イ？ｂＴＯ部FIG. 1 is an external front view showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, and FIG. 3 is a first cylindrical block, (a) is a front view, (b) is a sectional view, (c) is a side view of (b), FIG. 4 shows the second cylindrical blow 2, and (a) is a side view of (b).
) is a front view, (b) is a sectional view, (C) is a side view of (b), FIG. 5 shows the third cylindrical block, (a) is a front view, (b) is a sectional view, (c) is a side view of (b), and FIG. 6 is a sectional view showing a part of another embodiment of the present invention. 1: Cylindrical cam, 2: Cam groove, 2a: Outward cam groove, 2b = Return cam groove, 3: Cylindrical block,
3b=side part, 3c: bottom part, 4: cylindrical block, 4b, 4c: side part, 4d: bottom part, 5:
Cylindrical block, 5b = side part. Agent: Patent attorney 1) Side Yoshitoku 20: a Outer cam groove 2b' Dan y To each force 31L Fig. 1 Fig. 2 Fig. 3c, bottom part 4: Circular pro 1. F5; Cylinder 1 missing A7 5b: A? bTO club
Claims (1)
ブロックと、前記カム溝の他方の側面部を形成した円筒
状ブロックとの組合せによってカム溝を成形したことを
特徴とする円筒カム。(1) A cylinder in which a cam groove is formed by a combination of a cylindrical block forming one side surface and a bottom surface of the cam groove, and a cylindrical block forming the other side surface of the cam groove. cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20597890A JPH0492148A (en) | 1990-08-03 | 1990-08-03 | Cylindrical cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20597890A JPH0492148A (en) | 1990-08-03 | 1990-08-03 | Cylindrical cam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0492148A true JPH0492148A (en) | 1992-03-25 |
Family
ID=16515870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20597890A Pending JPH0492148A (en) | 1990-08-03 | 1990-08-03 | Cylindrical cam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0492148A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257778A (en) * | 1993-03-08 | 1993-11-02 | Gradco (Japan) Ltd. | Sorter with molded tray shifting cam construction and method of making the cam |
| US6276232B1 (en) * | 1997-04-09 | 2001-08-21 | Nikkiso Company Limited | Stroke length regulator |
-
1990
- 1990-08-03 JP JP20597890A patent/JPH0492148A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5257778A (en) * | 1993-03-08 | 1993-11-02 | Gradco (Japan) Ltd. | Sorter with molded tray shifting cam construction and method of making the cam |
| FR2702463A1 (en) * | 1993-03-08 | 1994-09-16 | Gradco Japan Ltd | Sheet sorting apparatus for printer or copier. |
| US6276232B1 (en) * | 1997-04-09 | 2001-08-21 | Nikkiso Company Limited | Stroke length regulator |
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