JPS633461Y2 - - Google Patents

Info

Publication number
JPS633461Y2
JPS633461Y2 JP7814982U JP7814982U JPS633461Y2 JP S633461 Y2 JPS633461 Y2 JP S633461Y2 JP 7814982 U JP7814982 U JP 7814982U JP 7814982 U JP7814982 U JP 7814982U JP S633461 Y2 JPS633461 Y2 JP S633461Y2
Authority
JP
Japan
Prior art keywords
pipe
grease
bush
bushes
shaft
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.)
Expired
Application number
JP7814982U
Other languages
Japanese (ja)
Other versions
JPS58181016U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7814982U priority Critical patent/JPS58181016U/en
Publication of JPS58181016U publication Critical patent/JPS58181016U/en
Application granted granted Critical
Publication of JPS633461Y2 publication Critical patent/JPS633461Y2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/045Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

【考案の詳細な説明】 本考案はボスの両端部にブツシユを嵌入し、該
各ブツシユ間に形成されるスペースにグリース容
量制限用のパイプを挿嵌してなる軸受の改良に関
する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a bearing in which bushes are fitted into both ends of a boss, and a pipe for limiting grease capacity is fitted into the space formed between the bushes.

第1図に従来技術による軸受を示し、1,1は
一方の取部材となるブラケツトで、該ブラケツト
1,1間に軸2が挿通され、該軸2は一方のブラ
ケツト1に設けられたピン取付部1Aに挿入され
たピン3によつて固着されている。そして、軸2
内には図中点線で示すようなグリース通路2Aが
穿設されている。4は従来技術による軸受を示
し、該軸受4は他方の取付部材となるボス5を有
し、該ボス5にはブツシユ嵌合穴5Aが形成され
ると共にその中間部位にはブツシユ嵌合穴5Aよ
り大径の環状穴5Bが穿設されている。該ブツシ
ユ嵌合穴5Aの両端部にはそれぞれ穴6Aを有す
るブツシユ6が圧入等の手段で嵌入され、該各ブ
ツシユ6の軸挿通孔6A,6A間には軸2が回動
かつ摺動可能に挿通支持され、各ブツシユ6の両
端はシール7,7によつてシールされている。そ
して、軸2をブツシユ6に挿通することにより、
該軸2の外周面2Bとボス5の環状穴5Bとブツ
シユ6とによつて囲まれた空間にはスペース8が
形成される。該スペース8には軸2のグリース通
路2Aを介して給脂されるグリースを封入するこ
とによりグリースポケツトとして利用し、当該グ
リースが軸2の外周面2Bとブツシユ6の軸挿通
孔6Aとが摺接する摺接部位に介在して潤滑作用
を行ない、これにより軸2に対してボス5が円滑
に回動するように構成されている。
Fig. 1 shows a bearing according to the prior art. Reference numerals 1 and 1 denote brackets serving as one of the holding members, and a shaft 2 is inserted between the brackets 1 and 1, and the shaft 2 is connected to a pin provided on one of the brackets 1. It is fixed by a pin 3 inserted into the mounting portion 1A. And axis 2
A grease passage 2A as shown by the dotted line in the figure is bored inside. Reference numeral 4 indicates a bearing according to the prior art, and the bearing 4 has a boss 5 that serves as the other mounting member, and a bushing fitting hole 5A is formed in the boss 5, and a bushing fitting hole 5A is formed in the intermediate portion thereof. A larger diameter annular hole 5B is bored. Bushes 6 each having a hole 6A are fitted into both ends of the bush fitting hole 5A by means such as press fitting, and the shaft 2 can rotate and slide between the shaft insertion holes 6A and 6A of each bush 6. Both ends of each bushing 6 are sealed by seals 7, 7. Then, by inserting the shaft 2 into the bush 6,
A space 8 is formed in a space surrounded by the outer peripheral surface 2B of the shaft 2, the annular hole 5B of the boss 5, and the bush 6. The space 8 is used as a grease pocket by filling the space 8 with grease supplied through the grease passage 2A of the shaft 2, so that the grease can slide between the outer peripheral surface 2B of the shaft 2 and the shaft insertion hole 6A of the bush 6. The boss 5 is configured to provide lubrication by intervening at the sliding contact portion, thereby allowing the boss 5 to rotate smoothly with respect to the shaft 2.

しかし、スペース8の容量が大きい場合には該
スペース8に封入されるグリース量も必要以上に
多くなるため、パイプ9をブツシユ6の間に挿嵌
し、該パイプ9をブツシユ6の端面6Bとパイプ
9の端面とで挾持することにより、該パイプ9の
内周面9Bと軸2の外周面2Bとで囲まれた空間
にグリースポケツト10を形成し、該グリースポ
ケツト10にグリース通路2Aを介してグリース
を封入することにより、封入されるグリース量を
節約するような構成としている。
However, if the capacity of the space 8 is large, the amount of grease sealed in the space 8 will be larger than necessary, so the pipe 9 is inserted between the bushes 6 and the pipe 9 is connected to the end surface 6B of the bush 6 A grease pocket 10 is formed in the space surrounded by the inner circumferential surface 9B of the pipe 9 and the outer circumferential surface 2B of the shaft 2 by sandwiching it with the end surface of the pipe 9, and a grease pocket 10 is formed in the space surrounded by the inner circumferential surface 9B of the pipe 9 and the outer circumferential surface 2B of the shaft 2. The structure is such that the amount of grease to be sealed can be saved by sealing the grease in the cylinder.

ところが、上記従来技術による軸受にあつては
パイプ9の製作寸法差のため各ブツシユ6間の間
隔よりもパイプ9の軸方向長さの方が短かすぎる
と、該パイプ9の端面9Aとブツシユ6の端面6
Bとが密着せず、該端面6B,9A間の間隙から
スペース8側にグリースが漏洩し、パイプ9を用
いて当該スペース8にグリースポケツト10を形
成しても、該グリースポケツト10が役立たない
ものとなる欠点がある。逆に、端面6B,9A間
の間隙をなくすためにパイプ9の軸方向の長さを
長くすると、ブツシユ6を圧入するときパイプ9
を屈曲させなくてはならず、ブツシユ6の圧入作
業が困難となる欠点がある。
However, in the bearing according to the above-mentioned prior art, if the axial length of the pipe 9 is too shorter than the interval between the bushes 6 due to the difference in manufacturing dimensions of the pipe 9, the end face 9A of the pipe 9 and the bush 6 end face 6
B do not come into close contact with each other, and grease leaks from the gap between the end faces 6B and 9A to the space 8 side, and even if a grease pocket 10 is formed in the space 8 using the pipe 9, the grease pocket 10 is useless. There are certain drawbacks. Conversely, if the length of the pipe 9 in the axial direction is increased in order to eliminate the gap between the end faces 6B and 9A, when the bush 6 is press-fitted, the pipe 9
This has the disadvantage that the press-fitting of the bushing 6 is difficult.

本考案はこのような従来技術による軸受の欠点
に鑑みなされたもので、その特徴とするところ
は、パイプの両端面と該パイプに対面する各ブツ
シユの端面とには互いに面接触するように相対向
するテーパ面をそれぞれ形成し、該各テーパ面を
当接させる構成とすることにより、前記当接部位
の密着性を高め、また前記パイプの軸方向長さの
誤差を吸収でき、かつ前記ブツシユの圧入作業を
容易とした軸受を提供するものである。
The present invention was developed in view of the drawbacks of the conventional bearings, and its feature is that both end faces of the pipe and the end faces of the bushes facing the pipe are arranged so that they are in surface contact with each other. By forming tapered surfaces facing each other and bringing the tapered surfaces into contact with each other, it is possible to increase the adhesion of the contact portion, absorb errors in the axial length of the pipe, and The present invention provides a bearing that facilitates press-fitting work.

以下、本考案について図面に示す実施例と共に
説明すると、第1図と同一構成要素には同一符号
を付して説明を省略する。
Hereinafter, the present invention will be described together with the embodiments shown in the drawings. The same components as in FIG.

第2図は本考案に係る軸受を示すもので、図
中、21はブツシユ嵌合穴5Aの両端に嵌入され
るブツシユで、該ブツシユ21には軸挿通孔21
Aが形成されると共にその一方の端面21Bには
その外径側にテーパ面21Cが形成されている。
また、22はスペース8の容量を制限するために
ブツシユ21,21間に挾持されるパイプで、該
パイプ22には軸挿通孔21Aよりも大径の内周
面22Aを形成すると共に、その両端面22Bに
はその内径側に前記テーパ面21Cと面接触する
ようなテーパ面22Cが形成されている。ここ
で、ブツシユ21のテーパ面21Cとパイプ22
のテーパ面22Cとの軸心がずれていても、該テ
ーパ面21C,22Cが接触するように、ブツシ
ユ21の端面寸法Aよりテーパ面22Cの半径方
向寸法Bの方が大となるように形成されている
(第3図参照)。さらに、パイプ22の軸方向長さ
はブツシユ21を所定位置まで圧入したとき各テ
ーパ面21C,22Cが全面接触する長さ、また
はそれ以上の長さに形成されている。そして、ブ
ツシユ21間にパイプ22が挾持されたとき軸2
の外周面2Bとパイプ22の内周面22Aで囲ま
れた空間にはグリースポケツト23が形成され、
該グリースポケツト23にグリースが封入され
る。
FIG. 2 shows a bearing according to the present invention. In the figure, reference numeral 21 denotes bushes that are fitted into both ends of the bush fitting hole 5A.
A is formed, and a tapered surface 21C is formed on the outer diameter side of one end surface 21B.
Further, 22 is a pipe that is held between the bushes 21 and 21 in order to limit the capacity of the space 8, and the pipe 22 has an inner circumferential surface 22A having a larger diameter than the shaft insertion hole 21A, and both ends thereof. A tapered surface 22C is formed on the inner diameter side of the surface 22B so as to make surface contact with the tapered surface 21C. Here, the tapered surface 21C of the bush 21 and the pipe 22
The taper surface 22C is formed so that the radial dimension B of the bush 21 is larger than the end surface dimension A of the bush 21 so that the taper surfaces 21C and 22C are in contact even if the axis of the bush 21 is misaligned with the taper surface 22C. (See Figure 3). Further, the axial length of the pipe 22 is such that when the bush 21 is press-fitted to a predetermined position, the tapered surfaces 21C and 22C are in full contact with each other, or longer. When the pipe 22 is held between the bushes 21, the shaft 2
A grease pocket 23 is formed in a space surrounded by the outer peripheral surface 2B of the pipe 22 and the inner peripheral surface 22A of the pipe 22.
Grease is sealed in the grease pocket 23.

第3図は第2図に示すブツシユ21のテーパ面
21Cとパイプ22のテーパ面22Cとが面接触
して当接する以前の状態を示し、ブツシユ21が
ブツシユ嵌合穴5Aにおける所定位置まで嵌入さ
れる途中においては、パイプ22の外周面がブツ
シユ嵌合穴5Aの下面に接して、ブツシユ21と
パイプ22の軸心とはずれている。
FIG. 3 shows a state before the taper surface 21C of the bush 21 and the taper surface 22C of the pipe 22 shown in FIG. On the way, the outer peripheral surface of the pipe 22 comes into contact with the lower surface of the bushing fitting hole 5A, and is out of alignment with the axes of the bushing 21 and the pipe 22.

次に、第4図に示すように、ブツシユ21を所
定位置まで嵌入するとブツシユ21のテーパ面2
1Cとパイプ22のテーパ面22CCとが互いに
滑り合つて、パイプ22の軸心がブツシユ21の
軸心が一致するように動き、前記テーパ面21C
とテーパ面22Cとが面接触して当接し、パイプ
22はブツシユ21,21間で挾持される。この
ため、グリースポケツト23は油密性を保持でき
るから、グリースの漏洩を防止しうる。また、パ
イプ22の両端部22Bにはその内径側にテーパ
面22Cが形成されているため、前記両端部22
Bは肉厚が薄く脆弱となつていると共に、テーパ
面22Cはそれぞれテーパ面21Cと当接してい
るから、該ブツシユ21を軸線方向に押圧する
と、パイプ22の両端部22Bはテーパ面21C
に沿つて例えばラツパ状に塑性変形する。この結
果、ブツシユ嵌合穴5Aに対するブツシユ21の
圧入作業が容易となり、また、両端部22Bが塑
性変形することによつて、該パイプ22の軸方向
長さの誤差を吸収しうるのみならず、ブツシユ2
1およびパイプ22の製造誤差も吸収しうる。
Next, as shown in FIG. 4, when the bush 21 is inserted into the predetermined position, the tapered surface 2
1C and the tapered surface 22CC of the pipe 22 slide against each other, and the axial center of the pipe 22 moves so that the axial center of the bush 21 coincides with the tapered surface 21C.
and the tapered surface 22C come into surface contact with each other, and the pipe 22 is held between the bushes 21 and 21. Therefore, the grease pocket 23 can maintain oil tightness, thereby preventing grease from leaking. Further, since both end portions 22B of the pipe 22 are formed with tapered surfaces 22C on the inner diameter side, the both end portions 22B
B has a thin wall and is fragile, and the tapered surfaces 22C are in contact with the tapered surfaces 21C, so when the bush 21 is pressed in the axial direction, both ends 22B of the pipe 22 are brought into contact with the tapered surfaces 21C.
For example, it plastically deforms in a rasp-like manner along the curve. As a result, it becomes easy to press-fit the bush 21 into the bush fitting hole 5A, and by plastically deforming both ends 22B, it is possible not only to absorb errors in the axial length of the pipe 22, but also to Butsuyu 2
1 and the pipe 22 can also be absorbed.

なお、前述の実施例ではブツシユ21のテーパ
面21Cを外径側に形成し、パイプ22のテーパ
面22Cを内径側に形成するものとして述べた
が、これを逆にしてテーパ面21Cをブツシユ2
1の内径側に形成し、これに相対向するテーパ面
22Cをパイプ22の外径側に形成してもよいも
のである。
In the above embodiment, the tapered surface 21C of the bush 21 is formed on the outer diameter side, and the tapered surface 22C of the pipe 22 is formed on the inner diameter side, but this is reversed and the tapered surface 21C is formed on the bush 2.
The tapered surface 22C may be formed on the inner diameter side of the pipe 22, and the tapered surface 22C opposite thereto may be formed on the outer diameter side of the pipe 22.

本考案に係る軸受は以上詳細に述べた如くであ
つて下記各項の効果を奏する。
The bearing according to the present invention is as described in detail above, and has the following effects.

(1) ブツシユの端面とパイプの端面とに相対向す
るテーパ面を形成し、該各テーパ面を面接触さ
せて当接させ、軸とパイプとの間に形成される
グリースポケツトにグリースを封入する構成と
したから、誤グリースポケツトの油密性を十分
に確保でき、グリースがこのグリースポケツト
から漏洩することがなく、グリースの給脂量と
給脂作業に要する時間を節約することができ
る。
(1) Opposite tapered surfaces are formed on the end surface of the bush and the end surface of the pipe, the tapered surfaces are brought into surface contact, and grease is sealed in the grease pocket formed between the shaft and the pipe. With this structure, the oil-tightness of the mistaken grease pocket can be sufficiently ensured, and the grease does not leak from the grease pocket, so that the amount of grease to be supplied and the time required for the greasing operation can be saved.

(2) パイプをブツシユによつて押圧することによ
り、自動的に該パイプと軸の同心性を保持する
ことができるから、各部へのグリースの供給を
確実に行なうことができる。
(2) By pressing the pipe with the bushing, the concentricity of the pipe and the shaft can be maintained automatically, so that grease can be reliably supplied to each part.

(3) 各テーパ面が面接触して互いに滑り合う構成
としたから、ブツシユやパイプに製造誤差があ
つても、パイプの塑性変形によつてこれらの誤
差を吸収でき、またブツシユの圧入作業が容易
であると共に軸受を構成する部品の製作精度を
粗くすることができるから、生産性を高めるこ
とができる。
(3) Since each tapered surface is configured to make surface contact and slide against each other, even if there are manufacturing errors in the bushing or pipe, these errors can be absorbed by the plastic deformation of the pipe, and the press-fitting of the bushing is easy. Since it is easy and the manufacturing precision of the parts constituting the bearing can be made coarse, productivity can be improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来技術による軸受を示す縦断面図、
第2図は本考案に係る軸受を示す縦断面図、第3
図および第4図は組立状態を示す説明図である。 1……ブラケツト、2……軸、8……スペー
ス、21……ブツシユ、21C……テーパ面、2
2……パイプ、22C……テーパ面、23……グ
リースポケツト。
FIG. 1 is a vertical cross-sectional view showing a bearing according to the prior art;
Fig. 2 is a vertical sectional view showing the bearing according to the present invention;
4 and 4 are explanatory diagrams showing the assembled state. 1...Bracket, 2...Axis, 8...Space, 21...Button, 21C...Tapered surface, 2
2...pipe, 22C...tapered surface, 23...grease pocket.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ボスの両端部にはブツシユを嵌入し、該各ブツ
シユ間に形成されるスペースにはグリース容量制
限用のパイプを挿嵌してなる軸受において、前記
パイプの両端面と該パイプに対面する各ブツシユ
の端面とには互いに面接触するように相対向する
テーパ面をそれぞれ形成し、該各テーパ面を当接
させることにより前記パイプを各ブツシユ間に挾
持させたことを特徴とする軸受。
In a bearing in which bushes are fitted into both ends of the boss and a pipe for limiting grease capacity is fitted into the space formed between the bushes, both end surfaces of the pipe and the bushes facing the pipe A bearing characterized in that tapered surfaces facing each other are formed on the end surfaces of the bushings so as to be in surface contact with each other, and the pipe is held between the bushings by bringing the tapered surfaces into contact with each other.
JP7814982U 1982-05-27 1982-05-27 bearing Granted JPS58181016U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7814982U JPS58181016U (en) 1982-05-27 1982-05-27 bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7814982U JPS58181016U (en) 1982-05-27 1982-05-27 bearing

Publications (2)

Publication Number Publication Date
JPS58181016U JPS58181016U (en) 1983-12-03
JPS633461Y2 true JPS633461Y2 (en) 1988-01-28

Family

ID=30087389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7814982U Granted JPS58181016U (en) 1982-05-27 1982-05-27 bearing

Country Status (1)

Country Link
JP (1) JPS58181016U (en)

Also Published As

Publication number Publication date
JPS58181016U (en) 1983-12-03

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