JPH058110U - Gear with retaining function - Google Patents
Gear with retaining functionInfo
- Publication number
- JPH058110U JPH058110U JP5539691U JP5539691U JPH058110U JP H058110 U JPH058110 U JP H058110U JP 5539691 U JP5539691 U JP 5539691U JP 5539691 U JP5539691 U JP 5539691U JP H058110 U JPH058110 U JP H058110U
- Authority
- JP
- Japan
- Prior art keywords
- gear
- shaft
- gear body
- pawl portion
- boss
- 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
Landscapes
- Gears, Cams (AREA)
Abstract
(57)【要約】
【構成】ギヤ本体１のボス１ａの端部の全周に亘ってつ
め部１ｂが設けられ、このつめ部１ｂには組み立て時の
柔軟性を出す為のすり割り１ｃが均等分割されて３個所
に設けられている。シャフト２に組み込む際には、つめ
部１ｂはその柔軟性によりシャフト２の溝２ａに入り込
む形となり、ギヤ本体１がシャフト２から抜け出さな
い。
【効果】抜け止め用のつめをバランスよく作ることによ
り、部品点数及び組み立て工数が低減され、またギヤの
面振れが少なくなる。
(57) [Summary] [Structure] The boss 1a of the gear body 1 is provided with a pawl portion 1b over the entire circumference thereof, and the pawl portion 1b is provided with a slot 1c for providing flexibility during assembly. It is evenly divided and provided at three locations. When incorporated in the shaft 2, the pawl portion 1b is inserted into the groove 2a of the shaft 2 due to its flexibility, and the gear body 1 does not come out of the shaft 2. [Effect] By forming the retaining pawls in a well-balanced manner, the number of parts and the number of assembling steps are reduced, and the surface runout of the gear is reduced.
Description
【０００１】[0001]
本考案はファクシミリ装置等の回転伝達用のギヤにおける抜け止め機能付きギ ヤに関する。 The present invention relates to a gear with a retaining function in a gear for transmitting rotation of a facsimile machine or the like.
【０００２】[0002]
従来、この種のギヤの抜け止めは、リテイニングリングを用いるか、又は図２ に示すような一部つめ部を一体成形で作ったもので行なわれていた。図２に示す 従来例では、ギヤ本体１１のボス１１ａの端部にその周上の１個所のみにすり割 り１１ｃを伴う一部つめ部１１ｂを設け、この一部つめ部１１ｂが相手側のシャ フト２の溝２ａに入りこんで抜け止めを行なうようになっていた。 Conventionally, retaining gears of this kind have been performed by using a retaining ring or by integrally molding a part of the pawls as shown in FIG. In the conventional example shown in FIG. 2, a boss 11a of the gear body 11 is provided with a partial pawl 11b accompanied by a slit 11c at only one position on the circumference thereof. It was designed to enter the groove 2a of the shaft 2 and prevent it from coming off.
【０００３】[0003]
上述したファクシミリ装置等に使われている従来のギヤは、抜け止めの為にリ テイニングリングを用いるか、又は一部つめ部を一体成形で止めていた為、組立 工数が多く掛かるか、又は一部つめ部のアンバランスに起因するギヤの面振れが 大きいと言う欠点があった。 The conventional gears used in the above-mentioned facsimile machines use a retaining ring to prevent the gears from slipping off, or some of the pawls are integrally molded, so that it takes a lot of assembly man-hours. There was a drawback that the surface runout of the gear was large due to the imbalance of some pawls.
【０００４】[0004]
本考案の抜け止め機能付きギヤは、ギヤ本体と、このギヤ本体のボスの端部の 全周に亘って設けられ均等分割されたすり割りを有してシャフトの溝に入りこむ つめ部とを備えている。 The retaining gear of the present invention comprises a gear body and a pawl portion which is provided over the entire circumference of the end portion of the boss of the gear body and which has evenly divided slits to enter the groove of the shaft. ing.
【０００５】[0005]
次に本考案について図面を参照して説明する。 Next, the present invention will be described with reference to the drawings.
【０００６】 図１（ａ）及び（ｂ）は本考案の一実施例の正面図及び断面図である。1A and 1B are a front view and a sectional view of an embodiment of the present invention.
【０００７】 本実施例の抜け止め機能付きギヤは、ギヤ本体１のボス１ａの端部の全周に亘 ってつめ部１ｂが設けられ、このつめ部１ｂには組立て時の柔軟性を出す為のす り割り１ｃが均等分割されて３個所に設けられるている。In the gear with a retaining function of the present embodiment, a pawl portion 1b is provided over the entire circumference of the end portion of the boss 1a of the gear body 1, and the pawl portion 1b provides flexibility during assembly. The slot 1c for the purpose is equally divided and provided at three locations.
【０００８】 このような本実施例を嵌合相手であるシャフト２に組み込むが、このときつめ 部１ｂはその柔軟性によりシャフト２の溝２ａに入り込む形となり、ギヤ本体１ がシャフト２から抜け出さない構造とすることができる。またつめ部１ｂが全周 に亘っているのでバランスがよく、ギヤ本体１に生じる面振れを少なくすること ができる。The present embodiment as described above is incorporated into the shaft 2 which is a mating partner. At this time, the claw portion 1b is inserted into the groove 2a of the shaft 2 due to its flexibility, and the gear body 1 does not come out of the shaft 2. It can be a structure. Further, since the pawl portion 1b extends over the entire circumference, it is well balanced, and it is possible to reduce surface wobbling that occurs in the gear body 1.
【０００９】[0009]
以上説明したように本考案は、回転伝達用のギヤに抜け止め用のつめをバラン スよく一体成形で作ることにより、部品点数の削除及び組み立て工数の低減に効 果があり、またギヤの面振れが少なくなる。 As described above, the present invention is effective in eliminating the number of parts and reducing the number of assembly steps by integrally forming the retaining pawls on the gear for rotation transmission with good balance. Less runout.
【図１】本考案の一実施例を示し、同図（ａ）は正面
図、同図（ｂ）は断面図である。1 shows an embodiment of the present invention, FIG. 1 (a) is a front view and FIG. 1 (b) is a sectional view.
【図２】従来のギヤの抜け止め構造を示し、同図（ａ）
は正面図、同図（ｂ）は断面図である。FIG. 2 shows a conventional gear retaining structure, which is shown in FIG.
Is a front view, and FIG.
１，１１ ギヤ本体 １ａ，１１ａ ボス １ｂ つめ部 １ｃ，１１ｃ すり割り ２ シャフト ２ａ 溝 １１ｂ 一部つめ部 1, 11 Gear body 1a, 11a Boss 1b Pawl part 1c, 11c Slot 2 Shaft 2a Groove 11b Partial pawl part
Claims (1)
の全周に亘って設けられ均等分割されたすり割りを有し
てシャフトの溝に入りこむつめ部とを備えることを特徴
とする抜け止め機能付きギヤ。[Claims for utility model registration] [Claim 1] A gear body and a diaper part that is provided over the entire circumference of the end portion of the boss of the gear body and has slits that are evenly divided to enter the groove of the shaft. A gear with a retaining function, which is characterized by including and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5539691U JPH058110U (en) | 1991-07-17 | 1991-07-17 | Gear with retaining function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5539691U JPH058110U (en) | 1991-07-17 | 1991-07-17 | Gear with retaining function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH058110U true JPH058110U (en) | 1993-02-05 |
Family
ID=12997366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5539691U Pending JPH058110U (en) | 1991-07-17 | 1991-07-17 | Gear with retaining function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH058110U (en) |
-
1991
- 1991-07-17 JP JP5539691U patent/JPH058110U/en active Pending
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