JPH08159141A - Supporting structure for shaft - Google Patents
Supporting structure for shaftInfo
- Publication number
- JPH08159141A JPH08159141A JP33009894A JP33009894A JPH08159141A JP H08159141 A JPH08159141 A JP H08159141A JP 33009894 A JP33009894 A JP 33009894A JP 33009894 A JP33009894 A JP 33009894A JP H08159141 A JPH08159141 A JP H08159141A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- support member
- protrusions
- hole
- supporting member
- 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
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、板状の支持部材の穴部
へ軸を挿通して支持する場合の軸の支持構造に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft support structure for supporting a shaft by inserting the shaft into a hole of a plate-shaped support member.
【０００２】[0002]
【従来の技術】従来、板状の支持部材の穴部へ軸を挿通
して支持する場合の軸の支持構造としては、次のような
ものがある。 (1) 支持部材の穴部に軸を挿通し、支持部材を挟み込む
ように軸に２つの止め輪を取り付けるもの (2) 支持部材の穴部に軸を挿通し、支持部材の両側部分
に位置する軸の一部分をかしめて、支持部材を挟み込む
ようにするもの (3) 支持部材の穴部に軸を挿通し、軸と支持部材とを溶
接するもの (4) 支持部材の穴部に軸を挿通し、軸と支持部材とを接
着するもの (5) 支持部材の穴部に軸を圧入するもの2. Description of the Related Art Conventionally, there is the following structure for supporting a shaft when the shaft is inserted through a hole of a plate-shaped supporting member to support the shaft. (1) Insert the shaft into the hole of the support member and attach two retaining rings to the shaft so that the support member is sandwiched. (2) Insert the shaft into the hole of the support member and locate on both sides of the support member. (3) Insert the shaft into the hole of the support member and weld the shaft to the support member (4) Insert the shaft into the hole of the support member Inserting and adhering the shaft to the supporting member (5) Pressing the shaft into the hole of the supporting member
【０００３】なお、このような軸の支持構造に関連する
従来の文献としては、例えば、特開昭56−105121号公報
がある。As a conventional document relating to such a shaft supporting structure, there is, for example, Japanese Patent Laid-Open No. 56-105121.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前記し
た従来の技術の内、(1) の技術には、止め輪が必要であ
る上、それをはめ込むための溝を軸に形成し、組み立て
加工時には、支持部材の穴部に軸を挿通してから、前記
溝に止め輪をはめ込む必要があって、加工時間が長くか
かると共にコスト高になるという問題点があった。ま
た、前記(2) の技術には、軸の一部分をかしめるための
大規模な加工装置が必要でコスト高になったり、加工時
間が長くなるという問題点があった。そしてまた、前記
(3) の技術には、軸と支持部材とを溶接するため、溶接
機が必要である上、加工時間が長くなるという問題点が
あった。また、前記(4) の技術には、接着剤が経時変化
により劣化して、支持力が低下してしまうという問題点
があった。さらに、前記(5) の技術には、支持部材の穴
部に軸の端部を圧入し始めてから支持部材が所定位置に
なるまで圧入し続ける必要があって圧入作業時間が長く
かかるという問題点があった。さらにまた、前記(3),
(4),(5) の技術には、支持構造自体に支持位置の位置決
め機能がない上、軸と支持部材とを固着してしまうた
め、回転軸の支持構造としては適用できないという問題
点があった。However, in the above-mentioned conventional technique (1), the technique (1) requires a retaining ring, and a groove for fitting the retaining ring is formed on the shaft, which is used during the assembly process. Since it is necessary to fit the retaining ring into the groove after inserting the shaft into the hole of the support member, there is a problem that it takes a long processing time and the cost becomes high. Further, the technique (2) has problems that a large-scale processing device for caulking a part of the shaft is required, resulting in high cost and long processing time. And again
The technique of (3) has a problem that a welding machine is required to weld the shaft and the supporting member and the processing time becomes long. Further, the technique of (4) has a problem that the adhesive deteriorates due to a change with time and the supporting force is lowered. Further, in the technique of (5), it is necessary to press-fit the end of the shaft into the hole of the support member until the support member reaches the predetermined position, which requires a long press-fitting work time. was there. Furthermore, the above (3),
The technologies (4) and (5) have the problem that they cannot be applied as a support structure for a rotating shaft because the support structure itself does not have a function of positioning the support position and the shaft and the support member are fixed. there were.
【０００５】本発明は、以上のような問題点を解決し、
加工時間が短く、コストが低く、大規模な加工装置を必
要とせず、経時変化がなく、位置決め機能があり、回転
軸の支持にも適用できる軸の支持構造を提供することを
課題とするものである。The present invention solves the above problems,
It is an object to provide a shaft support structure which has a short processing time, low cost, does not require a large-scale processing device, does not change with time, has a positioning function, and can also be applied to support a rotating shaft. Is.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するた
め、本発明の軸の支持構造では、板状の支持部材の穴部
に軸を挿通して支持する軸の支持構造であって、前記軸
の表面に軸線方向に前記支持部材の厚さより大きい間隔
をあけ、かつ、前記穴部との間に所定の嵌合代をとって
第１及び第２の突出部を設け、前記支持部材と突出部と
の内の少なくとも一方は弾性変形可能な材料で形成し、
前記穴部に前記第１及び第２の突出部の内の一方を圧入
して通り抜けさせて、前記第１及び第２の突出部の間に
前記支持部材を位置させることとした。In order to solve the above-mentioned problems, the shaft support structure of the present invention is a shaft support structure in which a shaft is inserted through a hole of a plate-shaped support member and supported. A space larger than the thickness of the support member is provided in the surface of the shaft in the axial direction, and first and second projecting portions are provided with a predetermined fitting margin between the support member and the support member. At least one of the protruding portion is formed of an elastically deformable material,
One of the first and second protrusions is press-fitted into the hole to pass through the hole, and the support member is positioned between the first and second protrusions.
【０００７】[0007]
【作 用】軸の表面に軸線方向に支持部材の厚さより
大きい間隔をあけて第１及び第２の突出部を設け、支持
部材の穴部に前記第１及び第２の突出部の内の一方を圧
入して通り抜けさせ、第１及び第２の突出部の間に前記
支持部材を位置させる。そして、軸が軸線方向へ移動し
ようとしたとき、突出部が支持部材に当接することによ
り、軸の軸線方向への移動を阻止する。[Operation] The first and second protrusions are provided on the surface of the shaft at an interval larger than the thickness of the support member in the axial direction, and the hole of the support member is provided with the first and second protrusions. One is press-fitted to pass through and the support member is positioned between the first and second protrusions. Then, when the shaft is about to move in the axial direction, the protrusion contacts the support member to prevent the shaft from moving in the axial direction.
【０００８】そのように、軸に第１及び第２の突出部を
設け、その一方を支持部材の穴部に圧入して通り抜けさ
せるだけで軸の支持ができるので、組み立て加工に大規
模な加工装置を必要とせず、作業時間も短く、コストも
高くならない。また、軸に設けた突出部と支持部材だけ
で支持を行うので、経時的変化はなく、突出部により位
置決めもできる上、回転軸の支持にも適用できる。As described above, since the shaft can be supported only by providing the shaft with the first and second protrusions and pressing one of them into the hole of the support member and letting it pass through, a large-scale processing for assembly work is possible. No equipment is required, working time is short, and cost is not high. Further, since the support is provided only by the protrusion provided on the shaft and the support member, there is no change with time, the protrusion can be used for positioning, and the invention can also be applied to support the rotary shaft.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。 （第１実施例）図１は、本発明の第一実施例を示す斜視
図であり、図２は、本発明の第１実施例の正面図であ
る。図１，図２において、１は軸、２は支持部材、３〜
６は突起部、７は穴部である。軸１は、直径が支持部材
２の穴部７の直径よりほんの僅かに小さくなっていて、
穴部７に容易に挿入可能になっている。突起部３，４
は、前記第１の突出部に対応し、軸１の軸線方向に対し
て垂直な同一円周上に設けられており、突起部５，６
は、前記第２の突出部に対応し、突起部３，４と軸線方
向に所定の間隔Ｓをあけて、軸１の軸線方向に対して垂
直な同一円周上に設けられている。その間隔Ｓは、支持
部材２の厚さより僅かに大きく設定する。各突起部３〜
６は、突起部３，４の頂部間及び突起部５，６の頂部間
の距離Ｄが穴部７の直径より僅かに大きくなるような高
さにして、穴部７との間に適当な嵌合代をとっている。
例えば、軸１の直径が６mmで穴部７の直径が６+ mm
（「６+ mm」は、６mmより僅かに大きいことを示す。以
下同じ）のとき、突起部３，４の頂部間及び突起部５，
６の頂部間の距離Ｄは、6.2mm 程度になるように突起部
３〜６の高さを設定する。したがって、そのときの嵌合
代は、上下に0.1mm ずつとられることになる。また、突
起部３〜６の軸１端部に向いている側は、支持部材２の
穴部７への圧入を容易にするため、テーパ状に形成す
る。Embodiments of the present invention will now be described in detail with reference to the drawings. (First Embodiment) FIG. 1 is a perspective view showing a first embodiment of the present invention, and FIG. 2 is a front view of the first embodiment of the present invention. 1 and 2, 1 is a shaft, 2 is a support member, 3 to
6 is a protrusion, and 7 is a hole. The shaft 1 has a diameter slightly smaller than the diameter of the hole 7 of the support member 2,
It can be easily inserted into the hole 7. Protrusions 3, 4
Corresponds to the first protrusion and is provided on the same circumference perpendicular to the axial direction of the shaft 1, and the protrusions 5, 6 are provided.
Corresponds to the second protrusion and is provided on the same circumference perpendicular to the axial direction of the shaft 1 at a predetermined interval S from the protrusions 3 and 4 in the axial direction. The space S is set to be slightly larger than the thickness of the support member 2. Each protrusion 3 ~
6 has a height such that the distance D between the tops of the protrusions 3 and 4 and the distance between the tops of the protrusions 5 and 6 is slightly larger than the diameter of the hole 7, and the distance between the protrusions 7 and 6 is appropriate. Mating charges are taken.
For example, the diameter of the shaft 1 is 6 mm and the diameter of the hole 7 is 6 + mm.
("6 + mm" means slightly larger than 6 mm. The same applies hereinafter), between the tops of the protrusions 3 and 4 and the protrusion 5,
The height D of the protrusions 3 to 6 is set so that the distance D between the tops of 6 is about 6.2 mm. Therefore, the fitting allowance at that time is 0.1 mm above and below. Further, the side of the protrusions 3 to 6 facing the end of the shaft 1 is formed in a tapered shape in order to facilitate press-fitting into the hole 7 of the support member 2.
【００１０】軸１と支持部材２の材質としては、金属，
プラスチック，セラミックス等を用いることができる。
また、軸１と突起部３〜６とは一つの材質で一体的に形
成することもできるが、それぞれ別々の材質で形成する
こともできる。ただ、軸１（特に、突起部３〜６）と支
持部材２の内の少なくとも一方は、弾性変形可能な材質
にする必要がある。例えば、軸１（突起部３〜６も）に
は、快削鋼（ＳＰＣＣ）を用い、支持部材２には、比較
的弾性が大きい鋼板（ＳＰＧ）を用いる。The shaft 1 and the supporting member 2 are made of metal,
Plastic, ceramics, etc. can be used.
Further, the shaft 1 and the protrusions 3 to 6 may be integrally formed of one material, but may be formed of different materials. However, at least one of the shaft 1 (in particular, the protrusions 3 to 6) and the support member 2 needs to be made of an elastically deformable material. For example, free-cutting steel (SPCC) is used for the shaft 1 (projections 3 to 6 also), and steel plate (SPG) having relatively large elasticity is used for the support member 2.
【００１１】軸１を支持部材２の穴部７に挿入し、突起
部５，６が穴部７の縁に当接するまでは、矢印Ａ方向に
滑らしていく。その際、軸１の直径が支持部材２の穴部
７の直径より僅かに小さくなっているため、軸１と支持
部材２との間に大きな摩擦がなく容易に挿入することが
できる。そして、突起部５，６が穴部７の縁に当接した
ら、大きな押圧力を与えて突起部５，６を穴部７内に圧
入する。支持部材２に弾性変形可能な材質を用いている
場合、穴部７が弾性的に変形し、突起部５，６が穴部７
内を通り抜けて、図２に示すように、支持部材２が突起
部３，４と突起部５，６との間に挟持されることにな
る。そのようにして、突起部３，４と突起部５，６とで
軸１と支持部材２との位置決めを行いながら、半永久的
に支持状態を保つことができる。The shaft 1 is inserted into the hole 7 of the support member 2 and is slid in the direction of arrow A until the protrusions 5 and 6 come into contact with the edges of the hole 7. At this time, since the diameter of the shaft 1 is slightly smaller than the diameter of the hole 7 of the support member 2, there is no large friction between the shaft 1 and the support member 2, and the shaft 1 can be easily inserted. When the protrusions 5 and 6 come into contact with the edges of the hole 7, a large pressing force is applied to press the protrusions 5 and 6 into the hole 7. When the support member 2 is made of an elastically deformable material, the hole 7 is elastically deformed, and the protrusions 5 and 6 are formed in the hole 7.
After passing through the inside, as shown in FIG. 2, the support member 2 is sandwiched between the protrusions 3 and 4 and the protrusions 5 and 6. In this way, the shaft 1 and the supporting member 2 can be positioned semi-permanently while the projections 3 and 4 and the projections 5 and 6 are positioned.
【００１２】軸１の突起部５，６を穴部７に圧入するに
は、ハンドプレスのようなてこの原理を使った手動の圧
入器具を用いれば容易に圧入できる。また、支持部材２
の変形を防止するため、適当な治具を使って支持部材２
の穴部７周辺部を反対側から支持するようにする。軸１
を穴部７へ圧入するのに要する力、及び、軸１と支持部
材２との間の支持力は、突起部５，６と穴部７との間の
嵌合代を適当にとること、及び、軸１と支持部材２の材
質を適当に選択することにより調整できる。In order to press fit the protrusions 5 and 6 of the shaft 1 into the hole 7, it can be easily press-fitted by using a manual press-fitting device using a lever principle such as a hand press. Also, the support member 2
Support member 2 using an appropriate jig to prevent deformation
The peripheral portion of the hole 7 is supported from the opposite side. Axis 1
The force required for press-fitting into the hole 7 and the supporting force between the shaft 1 and the supporting member 2 should be such that the fitting allowance between the protrusions 5, 6 and the hole 7 is appropriate. Also, it can be adjusted by appropriately selecting the materials of the shaft 1 and the support member 2.
【００１３】なお、突起部の形状は、上記実施例のもの
に限定されず、円柱形，三角錐，半球形，台形等、種々
の形状のものを採用することができる。また、突起の数
も、軸１の同一円周上に２つに限定されず、同一円周上
に１つ、または、３つ以上設けてもよい。そしてまた、
軸１の断面形状や穴部７の形状も、必ずしも円形にする
必要はなく、必要に応じて楕円や多角形等の円形以外の
形状を採用することができる。そのように、軸１の断面
形状及び穴部７の形状を非円形にすれば、軸１の軸線方
向への移動を阻止すると共に、軸の回転も阻止すること
ができる。The shape of the protrusion is not limited to that of the above embodiment, but various shapes such as a cylinder, a triangular pyramid, a hemisphere, and a trapezoid can be adopted. Further, the number of the protrusions is not limited to two on the same circumference of the shaft 1, and may be one or three or more on the same circumference. and again,
The cross-sectional shape of the shaft 1 and the shape of the hole 7 do not necessarily have to be circular, and if necessary, shapes other than circular such as ellipse and polygon can be adopted. Thus, by making the cross-sectional shape of the shaft 1 and the shape of the hole 7 non-circular, it is possible to prevent movement of the shaft 1 in the axial direction and also prevent rotation of the shaft.
【００１４】（第２実施例）図３は、本発明の第２実施
例における軸を示す図である。図３（イ）は斜視図であ
り、図３（ロ）は正面図である。符号は、図１のものに
対応し、８，９は鍔部である。この実施例では、突出部
として、第１実施例のような突起部３，４及び突起部
５，６を形成する代わりに、軸線方向に所定の間隔Ｓを
あけて突条が円周上に連続する鍔部８，９を形成してい
る。その間隔Ｓは、第１実施例における突起部３，４と
突起部５，６との間隔と同様に、支持部材２（図１参
照）の厚さより僅かに大きく設定する。また、鍔部８，
９の外径Ｄは、支持部材２の穴部７（図１参照）の直径
より僅かに大きく設定し、穴部７との間に所定の嵌合代
をとるようにする。例えば、軸１の直径が６mmで穴部７
の直径が６+ mmのとき、鍔部８，９の外径Ｄは6.2mm 程
度に設定する。そしてまた、鍔部８，９の軸１端部に向
いている側は、支持部材２の穴部７への圧入を容易にす
るため、テーパ状に形成する。(Second Embodiment) FIG. 3 is a view showing an axis in a second embodiment of the present invention. FIG. 3A is a perspective view, and FIG. 3B is a front view. The reference numerals correspond to those in FIG. 1, and 8 and 9 are flange portions. In this embodiment, instead of forming the protrusions 3 and 4 and the protrusions 5 and 6 as the protrusions as in the first embodiment, the protrusions are formed on the circumference at a predetermined interval S in the axial direction. The continuous collar portions 8 and 9 are formed. The distance S is set to be slightly larger than the thickness of the support member 2 (see FIG. 1), like the distance between the protrusions 3 and 4 and the protrusions 5 and 6 in the first embodiment. In addition, the collar portion 8,
The outer diameter D of 9 is set to be slightly larger than the diameter of the hole 7 (see FIG. 1) of the support member 2 so that a predetermined fitting margin with the hole 7 is taken. For example, the diameter of the shaft 1 is 6 mm and the hole 7
When the diameter is 6 + mm, the outer diameter D of the collars 8 and 9 is set to about 6.2 mm. In addition, the side of the collar portions 8 and 9 facing the end of the shaft 1 is formed in a tapered shape in order to facilitate press fitting into the hole portion 7 of the support member 2.
【００１５】この実施例によれば、鍔部８，９が軸１の
全円周に連続して形成されているため、支持部材２の穴
部７の全縁部で支持されるため、支持が強固になる。According to this embodiment, since the brim portions 8 and 9 are continuously formed on the entire circumference of the shaft 1, the brim portions 8 and 9 are supported by the whole edge portion of the hole portion 7 of the supporting member 2, and hence the supporting member 2 is supported. Becomes stronger.
【００１６】（第３実施例）図４は、本発明の第３実施
例における軸を示す図である。図４（イ）は、軸１の斜
視図であり、図４（ロ）は、軸１の正面図である。符号
は、図１のものに対応し、１０，１１はローレット形状
部である。この実施例では、突出部として、第１実施例
のような突起部３，４及び突起部５，６や、第２実施例
のような鍔部８，９を形成する代わりに、軸線方向に所
定の間隔をあけてローレット形状部１０，１１を形成し
ている。その間隔Ｓは、第１実施例における突起部３，
４と突起部５，６との間隔や、第２実施例における鍔部
８，９の間隔と同様に、支持部材２（図１参照）の厚さ
より僅かに大きく設定する。また、ローレット形状部１
０，１１の頂部を結ぶ円の外径Ｄは、支持部材２の穴部
７（図１参照）の直径より僅かに大きく設定し、穴部７
との間に所定の嵌合代を取るようにする。例えば、軸１
の直径が６mmで穴部７の直径が６+ mmのとき、ローレッ
ト形状部１０，１１の頂部を結ぶ円の外径Ｄは6.2mm 程
度に設定する。そしてまた、ローレット形状部１０，１
１の目の方向は、支持部材２の穴部７への圧入を容易に
するため、軸１の軸線と平行に形成することが望ましい
が、必ずしもそれに限定されない。(Third Embodiment) FIG. 4 is a view showing an axis in a third embodiment of the present invention. FIG. 4A is a perspective view of the shaft 1, and FIG. 4B is a front view of the shaft 1. The reference numerals correspond to those in FIG. 1, and 10 and 11 are knurled portions. In this embodiment, instead of forming the protrusions 3 and 4 and the protrusions 5 and 6 as in the first embodiment or the flanges 8 and 9 as in the second embodiment as the protrusions, the protrusions are formed in the axial direction. The knurled portions 10 and 11 are formed at a predetermined interval. The space S is equal to the protrusion 3 in the first embodiment.
The thickness is set to be slightly larger than the thickness of the support member 2 (see FIG. 1), like the distance between the protrusions 5 and 6 and the distance between the protrusions 5 and 6, and the distance between the flanges 8 and 9 in the second embodiment. Also, the knurled portion 1
The outer diameter D of the circle connecting the apexes of 0 and 11 is set to be slightly larger than the diameter of the hole 7 (see FIG. 1) of the support member 2.
A certain amount of fitting allowance should be taken between and. For example, axis 1
When the diameter of the knurled portion is 6 mm and the diameter of the hole 7 is 6 + mm, the outer diameter D of the circle connecting the tops of the knurled portions 10 and 11 is set to about 6.2 mm. And again, the knurled parts 10, 1
The direction of the first eye is preferably formed parallel to the axis of the shaft 1 in order to facilitate press fitting into the hole 7 of the support member 2, but is not necessarily limited thereto.
【００１７】この実施例によれば、ローレット形状部１
０，１１を支持部材２の穴部７に圧入する際、弾性変形
がローレット形状部１０，１１の各々の目毎に分散され
て起こるため、圧入が比較的容易になると共に、ローレ
ット形状部１０，１１が、軸１の全円周に連続して形成
されているため、ローレット形状部１０，１１が穴部７
を通り抜けた後は、支持部材２の穴部７の全縁部で支持
されるため、支持が強固になる。According to this embodiment, the knurled portion 1
When 0 and 11 are press-fitted into the hole 7 of the support member 2, elastic deformation occurs by being dispersed for each eye of the knurled parts 10 and 11, so that the press-fitting is relatively easy and the knurled part 10 is relatively easy. , 11 are formed continuously on the entire circumference of the shaft 1, the knurled parts 10, 11 are formed in the hole 7
After passing through, all the edges of the hole 7 of the support member 2 are supported, so that the support is strong.
【００１８】（第４実施例）図５は、本発明をプリンタ
の給紙装置に適用した場合を示す図である。符号は、図
１，図４のものに対応し、７ａ，７ｂは穴部、１２はゴ
ムローラ、１３はローラ芯、１４はスナップフィット、
１５は係合溝である。軸１は、支持部材２の穴部７ａ，
７ｂに回転自在に挿通され、ローレット形状部１０，１
１によって、軸線方向の移動が阻止されるようになって
いる。軸１の他端には、ローラ芯１３を介して給紙用の
ゴムローラ１２が取り付けられており、軸１とゴムロー
ラ１２とは、支持部材２に対して回転するようになって
いる。スナップフィット１４は、ローラ芯１３と一体的
に固定されていて、軸１に形成された係合溝１５に係合
して、ゴムローラ１２が軸１から抜け落ちるのを防止し
ている。(Fourth Embodiment) FIG. 5 is a diagram showing a case where the present invention is applied to a paper feeding device of a printer. Reference numerals correspond to those in FIGS. 1 and 4, 7a and 7b are holes, 12 is a rubber roller, 13 is a roller core, 14 is a snap fit,
Reference numeral 15 is an engaging groove. The shaft 1 has a hole 7a in the support member 2,
7b is rotatably inserted and has knurled parts 10, 1
By means of 1, the movement in the axial direction is prevented. A rubber roller 12 for paper feeding is attached to the other end of the shaft 1 via a roller core 13, and the shaft 1 and the rubber roller 12 are adapted to rotate with respect to the support member 2. The snap fit 14 is integrally fixed to the roller core 13 and engages with the engaging groove 15 formed in the shaft 1 to prevent the rubber roller 12 from falling off the shaft 1.
【００１９】ゴムローラ１２は、図示しない駆動ローラ
と対向していて、該駆動ローラとの間にプリンタ用紙を
挟み、駆動ローラに従って回転しながらプリンタ用紙の
移送を行う。このように、本発明をプリンタの給紙装置
に用いれば、ゴムローラの回転軸を、短い加工時間で、
かつ、低コストで支持することができる。なお、ここで
は、軸１の突出部としてローレット形状部１０，１１を
形成した例で示したが、第１実施例として示した突起部
３〜６や、第２実施例として示した鍔部８，９を形成し
てもよい。The rubber roller 12 is opposed to a drive roller (not shown), sandwiches the printer paper between the drive roller and the drive roller, and transports the printer paper while rotating according to the drive roller. As described above, when the present invention is applied to the paper feeding device of the printer, the rotation axis of the rubber roller is shortened in a short processing time.
And it can be supported at low cost. Although the knurled portions 10 and 11 are formed as the protrusions of the shaft 1 here, the protrusions 3 to 6 shown as the first embodiment and the collar 8 shown as the second embodiment are shown. , 9 may be formed.
【００２０】[0020]
【発明の効果】以上述べた如く、本発明の軸の支持構造
によれば、軸に２組の突出部を設け、その一方を支持部
材の穴部に圧入して通り抜けさせるだけで軸の支持がで
きるので、大規模な加工装置を用いなくても作業でき、
作業時間も短く、コストもあまりかからない。また、軸
に設けた突出部と支持部材だけで支持を行うので経時変
化はなく、突出部により位置決めもできる上、回転軸の
支持にも適用できる。As described above, according to the shaft support structure of the present invention, two sets of projecting portions are provided on the shaft, and one of the projecting portions is press-fitted into the hole of the support member to pass therethrough, thereby supporting the shaft. Since it is possible to work, you can work without using large-scale processing equipment,
The work time is short and the cost is low. Further, since the support is provided only by the protrusion provided on the shaft and the supporting member, there is no change with time, the protrusion can be used for positioning, and the invention can be applied to support the rotary shaft.
【図１】 本発明の第一実施例を示す斜視図FIG. 1 is a perspective view showing a first embodiment of the present invention.
【図２】 本発明の第１実施例の正面図FIG. 2 is a front view of the first embodiment of the present invention.
【図３】 本発明の第２実施例における軸を示す図FIG. 3 is a diagram showing a shaft in a second embodiment of the present invention.
【図４】 本発明の第３実施例における軸を示す図FIG. 4 is a diagram showing a shaft according to a third embodiment of the present invention.
【図５】 本発明をプリンタの給紙装置に適用した場合
を示す図FIG. 5 is a diagram showing a case where the present invention is applied to a paper feeding device of a printer.
１…軸、２…支持部材、３〜６…突起部、７，７ａ，７
ｂ…穴部、８，９…鍔部、１０，１１…ローレット形状
部、１２…ゴムローラ、１３…ローラ芯、１４…スナッ
プフィット、１５…係合溝1 ... Shaft, 2 ... Support member, 3-6 ... Projection part, 7, 7a, 7
b ... Hole portion, 8, 9 ... Collar portion, 10, 11 ... Knurled portion, 12 ... Rubber roller, 13 ... Roller core, 14 ... Snap fit, 15 ... Engagement groove
Claims (1)
持する軸の支持構造であって、前記軸の表面に軸線方向
に前記支持部材の厚さより大きい間隔をあけ、かつ、前
記穴部との間に所定の嵌合代をとって第１及び第２の突
出部を設け、前記支持部材と突出部との内の少なくとも
一方は弾性変形可能な材料で形成し、前記穴部に前記第
１及び第２の突出部の内の一方を圧入して通り抜けさせ
て、前記第１及び第２の突出部の間に前記支持部材を位
置させるようにしたことを特徴とする軸の支持構造。1. A shaft support structure for supporting a shaft by inserting the shaft into a hole of a plate-shaped support member, wherein a space larger than the thickness of the support member is provided on the surface of the shaft in the axial direction. The first and second protrusions are provided with a predetermined fitting margin between the holes, and at least one of the support member and the protrusions is formed of an elastically deformable material. The shaft is characterized in that one of the first and second protrusions is press-fitted into the portion so as to pass therethrough, and the support member is positioned between the first and second protrusions. Support structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33009894A JPH08159141A (en) | 1994-12-05 | 1994-12-05 | Supporting structure for shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33009894A JPH08159141A (en) | 1994-12-05 | 1994-12-05 | Supporting structure for shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08159141A true JPH08159141A (en) | 1996-06-18 |
Family
ID=18228775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33009894A Pending JPH08159141A (en) | 1994-12-05 | 1994-12-05 | Supporting structure for shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08159141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014043687A (en) * | 2012-08-24 | 2014-03-13 | Sumitomo Kinzoku Kozan Siporex Kk | Panel mounting bracket and panel mounting method |
-
1994
- 1994-12-05 JP JP33009894A patent/JPH08159141A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014043687A (en) * | 2012-08-24 | 2014-03-13 | Sumitomo Kinzoku Kozan Siporex Kk | Panel mounting bracket and panel mounting method |
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