JPH02304211A - Roller shaft supporting structure - Google Patents
Roller shaft supporting structureInfo
- Publication number
- JPH02304211A JPH02304211A JP12160989A JP12160989A JPH02304211A JP H02304211 A JPH02304211 A JP H02304211A JP 12160989 A JP12160989 A JP 12160989A JP 12160989 A JP12160989 A JP 12160989A JP H02304211 A JPH02304211 A JP H02304211A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- roller shaft
- support surface
- engagement portion
- engaging portion
- 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
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Handling Of Sheets (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Sliding-Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
支持面を有する支持部材と、ローラ軸を支持し前記支持
面に嵌合させてワンタッチで装着される軸受とより成る
ローラ軸支持構造に関し、寸法精度の出にくいプラスチ
ックモールド等の軸受を、板ばね等の他の部材を使用せ
ずに、支持部材の支持面にがたつきなく装着できるよう
にすることを目的とし、
支持面を有する支持部材と、ローラ軸を支持し前記支持
面に嵌合させてワンタッチで装着される軸受とより成る
ローラ軸支持構造において、前記支持面に第１の係合部
を設けるとともに、前記軸受に、該軸受の装着時に前記
第１の係合部と弾性的に係合して該軸受を前記第１の係
合部と反対側で前記支持面に係止するように賦勢する第
２の係合部を設けた構成とする。[Detailed Description of the Invention] [Summary] Regarding a roller shaft support structure consisting of a support member having a support surface and a bearing that supports the roller shaft and is fitted to the support surface with a single touch, it is possible to improve dimensional accuracy. The purpose of the present invention is to enable a bearing made of a plastic mold that does not come out easily to be mounted on a support surface of a support member without rattling without using other members such as a leaf spring, and a support member having a support surface; In a roller shaft support structure comprising a bearing that supports a roller shaft and is fitted to the support surface and mounted with one touch, a first engaging portion is provided on the support surface, and the bearing is mounted on the bearing. and a second engaging portion that elastically engages with the first engaging portion to urge the bearing to lock on the support surface on a side opposite to the first engaging portion. The structure is as follows.
本発明は、支持面を有する支持部材と、ローラ軸を支持
し前記支持面に嵌合させてワンタッチで装着される軸受
とより成るローラ軸支持構造に関する。The present invention relates to a roller shaft support structure comprising a support member having a support surface, and a bearing that supports the roller shaft and is fitted to the support surface and mounted with one touch.
従来、例えばプリンタ装置のプラテンをフレ−ムに装着
する場合、焼結材の金属ブツシュを用いていたが、部品
コストやワンタッチ着脱性の点で有利なプラスチックモ
ールド材を利用した軸受が最近注目されてきている。Conventionally, for example, when attaching the platen of a printer device to a frame, a metal bush made of sintered material was used, but recently bearings using plastic molded material have attracted attention as they are advantageous in terms of parts cost and one-touch detachability. It's coming.
第３図はこの種の軸受を用いた従来のローラ軸支持構造
を示す側面図で、図中、■はプラテン、２はサイドフレ
ーム（支持部材）、３はプラスチックモールド材の軸受
である。FIG. 3 is a side view showing a conventional roller shaft support structure using this type of bearing. In the figure, ■ is a platen, 2 is a side frame (supporting member), and 3 is a bearing made of plastic mold material.
サイドフレーム２は、軸受３を嵌合させて装着するため
の支持面４と、軸受３の回動を係止するための穴５とを
備えており、支持面４により形成される穴６はスリット
７に連通している。The side frame 2 includes a support surface 4 for fitting and mounting the bearing 3, and a hole 5 for locking rotation of the bearing 3. The hole 6 formed by the support surface 4 is It communicates with slit 7.
軸受３は、円筒を２つの平行面８Ｉ、８ｇでカットした
形状のもので、アーム９と、軸受摺動防止用の突片１０
．．１０□とを一体に備えており、アーム９の先端には
、穴５に係合可能なピン１１が突設されている。平行面
８１．８ｇ間の距離ａは、スリット７の幅すより小さく
設定されている。The bearing 3 has a cylindrical shape cut with two parallel surfaces 8I and 8g, and includes an arm 9 and a protrusion 10 for preventing the bearing from sliding.
．． ．． 10□, and a pin 11 that can be engaged with the hole 5 is provided protruding from the tip of the arm 9. The distance a between the parallel surfaces 81.8g is set smaller than the width of the slit 7.
プラテン１のローラ軸１ａは軸受３に支持され、該軸受
３のサイドフレーム２への装着は次の手順で行われる。The roller shaft 1a of the platen 1 is supported by a bearing 3, and the bearing 3 is attached to the side frame 2 in the following procedure.
゛
軸受３の装着に際しては、該軸受３を第３図の状態から
９０″回転させてスリット７に挿入する。``When installing the bearing 3, the bearing 3 is rotated 90'' from the state shown in FIG. 3 and inserted into the slit 7.
この挿入は、上述のようにｂａａに設定されているため
に可能となる。挿入された軸受３の外周面が支持面４に
当接したところで軸受３を９０°回転させ、ピン１１を
穴５に嵌合させて装着は完了する。This insertion is possible because it is set to baa as described above. When the outer circumferential surface of the inserted bearing 3 comes into contact with the support surface 4, the bearing 3 is rotated 90 degrees and the pin 11 is fitted into the hole 5, completing the installation.
ところが、このような従来構造では、プラスチックモー
ルド材の軸受３は寸法精度が出にくく、サイドフレーム
２の支持面４と、該支持面４に嵌合させて装着された軸
受３との間には、第３図に斜線を記入したようにがたが
生じ、プラテン１の回転精度を悪化させて紙送り精度を
低下させる原因となっている。However, in such a conventional structure, the bearing 3 made of plastic molded material has difficulty achieving dimensional accuracy, and there is a gap between the support surface 4 of the side frame 2 and the bearing 3 fitted to the support surface 4. , a backlash occurs as indicated by diagonal lines in FIG. 3, which deteriorates the rotation accuracy of the platen 1 and causes a decrease in paper feeding accuracy.
本発明は、寸法精度の出にくいプラスチックモールド等
の軸受を、板ばね等の他の部材を使用せずに、支持部材
の支持面にがたつきなく装着することのできるロール軸
支持構造を提供することを目的としている。The present invention provides a roll shaft support structure in which a bearing made of plastic mold, etc., which is difficult to achieve dimensional accuracy, can be mounted on the support surface of a support member without rattling, without using other members such as leaf springs. It is intended to.
上述の目的を達成するため、本発明では、支持面を有す
る支持部材と、ローラ軸を支持し、前記支持面に嵌合さ
せてワンタッチで装着される軸受とより成るローラ軸支
持構造において、前記支持面に第１の係合部を設けると
ともに、前記軸受に、該軸受の装着時に前記第１の係合
部と弾性的に係合して該軸受を前記第１の係合部と反対
側で前記支持面に係止するように賦勢する第２の係合部
を設けた構成とする。In order to achieve the above object, the present invention provides a roller shaft support structure comprising a support member having a support surface, and a bearing that supports the roller shaft and is fitted to the support surface and mounted with one touch. A first engaging portion is provided on the support surface, and the bearing is elastically engaged with the first engaging portion when the bearing is mounted, so that the bearing is attached to the side opposite to the first engaging portion. A second engaging portion is provided which is biased to engage with the support surface.
ローラ軸を支持する軸受を支持面に装着する際に、軸受
は、第１の係合部と弾性的に係合する第２の係合部の賦
勢力によって第１の係合部と反対側で支持面に係止する
。従って、軸受の寸法精度が低く該軸受と支持面の間に
がたがあっても、軸受はがたつきなく支持面に装着され
る。When the bearing that supports the roller shaft is attached to the support surface, the bearing is attached to the side opposite to the first engaging part due to the urging force of the second engaging part that elastically engages with the first engaging part. to the supporting surface. Therefore, even if the dimensional accuracy of the bearing is low and there is play between the bearing and the support surface, the bearing can be mounted on the support surface without play.
以下、第１図及び第２図に関連して本発明の詳細な説明
する。The present invention will now be described in detail with reference to FIGS. 1 and 2.
第１図は本例のローラ軸支持構造を示す側面図で、図中
、２１はサイドフレーム（支持部材）、２２はプラスチ
ックモールド材の軸受である。FIG. 1 is a side view showing the roller shaft support structure of this example. In the figure, 21 is a side frame (supporting member), and 22 is a bearing made of a plastic molded material.
サイドフレーム２１は、第２図（ａ）に示すように、軸
受２２を嵌合させて装着するための支持面２３と、軸受
２２の回動を係止するための穴２４とを備えており、支
持面２３により形成される穴２５はスリット２６に連通
している。また、支持面２３の左側の部分には凸状の第
１の係合部２７が突設されている。As shown in FIG. 2(a), the side frame 21 includes a support surface 23 for fitting and mounting the bearing 22, and a hole 24 for locking the rotation of the bearing 22. , the hole 25 formed by the support surface 23 communicates with the slit 26. Further, a convex first engaging portion 27 is provided on the left side of the support surface 23 in a protruding manner.
軸受２２は、第２図（ｂ）に示すように、円筒を２つの
平行面２Ｂ、、２８ｔでカットした形状のもので、アー
ム２９と、軸受摺動防止用の突片３０、．３０！とを一
体に備えており、アーム２９の先端には、穴２４に係合
可能なピン３１が突設されている。平行面２８＋、２８
ｔ間の距離Ｃはスリット２６の幅ｄより小さく設定され
ているが、これは、支持面２３への軸受２２の装置をワ
ンタッチ、で行えるようにするためである。また、軸受
２２には弾性を有する第２の係合部３２が設けられてい
る。この第２の係合部３２は、軸受２２の外周面（支持
面２３に嵌合する面）２２ａのアーム２９突設側と反対
側の内側に空隙３３を設けることにより形成され、該第
２の係合部３２の中央には凹部３４が設けられている。As shown in FIG. 2(b), the bearing 22 has a cylindrical shape cut with two parallel surfaces 2B, . 30! A pin 31 that can be engaged with the hole 24 is provided at the tip of the arm 29 in a protruding manner. Parallel plane 28+, 28
The distance C between t is set smaller than the width d of the slit 26, and this is so that the bearing 22 can be attached to the support surface 23 with a single touch. Further, the bearing 22 is provided with a second engaging portion 32 having elasticity. This second engaging portion 32 is formed by providing a gap 33 inside the outer circumferential surface (surface that fits into the support surface 23) 22a of the bearing 22 on the side opposite to the arm 29 protruding side. A recessed portion 34 is provided in the center of the engaging portion 32 .
このような形状の軸受２２はモールド時に容易に成形す
ることが可能である。The bearing 22 having such a shape can be easily formed during molding.
プラテン１のローラ軸１ａは軸受２．２に支持され、咳
軸受２２のサイドフレーム２１への装着は次の手順で行
われる。The roller shaft 1a of the platen 1 is supported by a bearing 2.2, and the cough bearing 22 is attached to the side frame 21 in the following procedure.
軸受２２の装着に際しては、該軸受２２を第２図（ｂ）
の状態から９０″回転させてスリット２６に挿入する。When installing the bearing 22, attach the bearing 22 as shown in Fig. 2(b).
Rotate it 90'' from the state shown in , and insert it into the slit 26.
この挿入は、上述のようにｄ＞ｃに設定されているため
に可能となる。挿入された軸受２２の外周面２２ａが支
持面２３に当接したところで軸受２２を９０°回転させ
、ビン３１を穴２４に嵌合させて装着は完了する。この
過程で、軸受２２を９０°回転させる際に、第２の係合
部３２が第１の係合部２７と係合して弾性変形しながら
回転が進行し、回転完了時に第１の係合部２７゜が凹部
３４と係合する。この状態では、軸受２２の外周面２２
ａが第１の係合部２７と反対側（第１図の右側）で支持
面２３に圧接、係止する。従って、軸受２２と支持面２
３の間にがたがあっても、軸受２２はがたつきな（装着
される。なお、穴２４とビン３１の間には適当ながたが
設定されていて、装着時に軸受２２が支持面２３との間
のがたの分だけ移動してもビン３１は穴２４に支障なく
嵌合する。この嵌合はアーム２９の弾性を利用して実現
される。This insertion is possible because d>c is set as described above. When the outer circumferential surface 22a of the inserted bearing 22 comes into contact with the support surface 23, the bearing 22 is rotated 90 degrees and the pin 31 is fitted into the hole 24 to complete the installation. In this process, when the bearing 22 is rotated 90 degrees, the second engaging part 32 engages with the first engaging part 27 and the rotation progresses while being elastically deformed, and when the rotation is completed, the first engaging part 32 is engaged with the first engaging part 27. The mating portion 27° engages with the recess 34. In this state, the outer peripheral surface 22 of the bearing 22
a is press-contacted and locked to the support surface 23 on the side opposite to the first engaging portion 27 (the right side in FIG. 1). Therefore, the bearing 22 and the supporting surface 2
Even if there is play between the holes 24 and 31, the bearing 22 will be installed without any play.Note that an appropriate play is set between the hole 24 and the pin 31, so that the bearing 22 is supported when installed. Even if the bottle 31 moves by the amount of play between the bottle 31 and the surface 23, the bottle 31 fits into the hole 24 without any problem.This fitting is achieved by utilizing the elasticity of the arm 29.
〔発明の効果］
以上述べたように、本発明によれば、寸法精度の出にく
いプラスチックモールド等の軸受を、仮ばね等の他の部
材を使用せずに、支持部材の支持面にかつきなく装着す
ることが可能になる。[Effects of the Invention] As described above, according to the present invention, a bearing made of plastic mold, etc., which is difficult to achieve dimensional accuracy, can be mounted on the support surface of a support member without using other members such as a temporary spring. This makes it possible to install it without any problems.
第１図は本発明の実施例のローラ軸支持構造を示す側面
図、
第２図（ａ） 、 （ｂ）は第１図の要部構造説明図、
第３図は従来のローラ軸支持構造を示す側面図で、
図中、
１ａはローラ軸、
２１はサイドフレーム（支持部材）、
２２は軸受、
２３は支持面、
２７は第１の係合部、
３２は第２の係合部である。FIG. 1 is a side view showing a roller shaft support structure according to an embodiment of the present invention, FIGS.
FIG. 3 is a side view showing a conventional roller shaft support structure, in which 1a is a roller shaft, 21 is a side frame (supporting member), 22 is a bearing, 23 is a support surface, and 27 is a first engaging portion. , 32 is a second engaging portion.
Claims (1)
（１ａ）を支持し、前記支持面（２３）に嵌合させてワ
ンタッチで装着される軸受（２２）とより成るローラ軸
支持構造において、 前記支持面（２３）に第１の係合部（２７）を設けると
ともに、 前記軸受（２２）に、該軸受（２２）の装着時に前記第
１の係合部（２７）と弾性的に係合して該軸受（２２）
を前記第１の係合（２７）と反対側で前記支持面（２３
）に係止するように賦勢する第２の係合部（３２）を設
けたことを特徴とするローラ軸支持構造。[Scope of Claims] A support member (21) having a support surface (23), a bearing (22) that supports the roller shaft (1a) and is fitted to the support surface (23) and mounted with one touch. In the roller shaft support structure, a first engaging portion (27) is provided on the support surface (23), and the first engaging portion (27) is provided on the bearing (22) when the bearing (22) is mounted. (27) to elastically engage the bearing (22).
on the side opposite to the first engagement (27) and the supporting surface (23).
) A roller shaft support structure characterized in that a second engaging portion (32) is provided that urges the roller shaft to be engaged with the roller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12160989A JPH02304211A (en) | 1989-05-17 | 1989-05-17 | Roller shaft supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12160989A JPH02304211A (en) | 1989-05-17 | 1989-05-17 | Roller shaft supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02304211A true JPH02304211A (en) | 1990-12-18 |
Family
ID=14815494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12160989A Pending JPH02304211A (en) | 1989-05-17 | 1989-05-17 | Roller shaft supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02304211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466446A (en) * | 1990-07-09 | 1992-03-02 | Mita Ind Co Ltd | Rotary-element assembly and bearing member |
| JP2007298133A (en) * | 2006-05-01 | 2007-11-15 | Brother Ind Ltd | Bearing device |
| EP2159169A1 (en) * | 2008-08-26 | 2010-03-03 | Rickard Nilsson | Roller conveyor for shelves and slide shelving |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6317324B2 (en) * | 1982-07-13 | 1988-04-13 | Murata Manufacturing Co |
-
1989
- 1989-05-17 JP JP12160989A patent/JPH02304211A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6317324B2 (en) * | 1982-07-13 | 1988-04-13 | Murata Manufacturing Co |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0466446A (en) * | 1990-07-09 | 1992-03-02 | Mita Ind Co Ltd | Rotary-element assembly and bearing member |
| JP2007298133A (en) * | 2006-05-01 | 2007-11-15 | Brother Ind Ltd | Bearing device |
| US8152379B2 (en) | 2006-05-01 | 2012-04-10 | Brother Kogyo Kabushiki Kaisha | Bearing device having backlash reducer for reducing play of bearing, and image recording apparatus including the bearing device |
| EP2159169A1 (en) * | 2008-08-26 | 2010-03-03 | Rickard Nilsson | Roller conveyor for shelves and slide shelving |
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