JPH0415646U - - Google Patents
Info
- Publication number
- JPH0415646U JPH0415646U JP1990055448U JP5544890U JPH0415646U JP H0415646 U JPH0415646 U JP H0415646U JP 1990055448 U JP1990055448 U JP 1990055448U JP 5544890 U JP5544890 U JP 5544890U JP H0415646 U JPH0415646 U JP H0415646U
- Authority
- JP
- Japan
- Prior art keywords
- pin
- circumferential surface
- seal
- pin joint
- joint device
- 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
- 239000002184 metal Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2350/00—Machines or articles related to building
- F16C2350/26—Excavators
Landscapes
- Shovels (AREA)
- Component Parts Of Construction Machinery (AREA)
- Pivots And Pivotal Connections (AREA)
Description
第１図は本考案に係るピン継手装置の一実施例
を示す断面図、第２図は同シール組立体の断面図
、第３図は掘削作業機の概略側面図、第４図は従
来のピン継手装置の断面図である。
２１……ボス部材、２２ａ，ｂ……ブラケツト
部材、２３ａ，ｂ，ｃ……ピン孔、２４……継手
ピン、２７ａ，ｂ……ブツシユ、２１０ａ，２１
０ｂ……摺動面、２１１ａ，２１１ｂ……隙間、
２２４……カウンタボア、Ｓ′，Ｓ″……シール
組立体、Ｓ１……シール部、Ｓ２……緩衝部、２
２５……リツプ、２２６……支持金具。
Fig. 1 is a cross-sectional view showing one embodiment of the pin joint device according to the present invention, Fig. 2 is a cross-sectional view of the same seal assembly, Fig. 3 is a schematic side view of an excavating machine, and Fig. 4 is a conventional pin joint device. It is a sectional view of a pin joint device. 21... Boss member, 22a, b... Bracket member, 23a, b, c... Pin hole, 24... Joint pin, 27a, b... Bush, 210a, 21
0b...Sliding surface, 211a, 211b...Gap,
224...Counterbore, S', S''...Seal assembly, S1 ...Seal part, S2 ...Buffer part, 2
25...Rip, 226...Supporting metal fittings.
Claims (1)
し、これら整合孔にピン結合してなるピン継手に
おいて、前記ボス部材のピン孔の内周部に嵌着し
た左右ブツシユの外側面とブラケツト内側面間に
カウンタボアを形成したうえ、該カウンタボアに
弾性樹脂材からなるシール部と、該シール部から
内方に延在した緩衝部を一体形成したうえ、これ
らシール部と緩衝部の外周部に支持金具を接合し
てなるシール組立体を嵌着したことを特徴とする
作業機のピン継手装置。 (2) 上記シール組立体のシール部と緩衝部の軸
方向寸法比が約１：２であることを特徴とする請
求項１記載の作業機のピン継手装置。 (3) 上記シール組立体のシール部の内周面部が
継手ピン外周面に当接するリング状リツプ形状で
あることを特徴とする請求項１記載の作業機のピ
ン継手装置。 (4) 上記シール組立体の緩衝部の内周面部が継
手ピン外周面に当接する断面曲面膨み形状である
ことを特徴とする請求項１記載の作業機のピン継
手装置。[Claims for Utility Model Registration] (1) In a pin joint in which a boss member is fitted between bracket members on both sides and pin-connected to these alignment holes, the boss member is fitted into the inner circumference of the pin hole of the boss member. A counterbore is formed between the outer surfaces of the left and right bushings and the inner surface of the bracket, and a seal portion made of an elastic resin material and a buffer portion extending inward from the seal portion are integrally formed in the counterbore. A pin joint device for a work machine, characterized in that a seal assembly formed by joining supporting metal fittings to the outer periphery of the seal portion and the buffer portion is fitted. (2) The pin joint device for a working machine according to claim 1, wherein the axial dimension ratio of the seal portion and the buffer portion of the seal assembly is about 1:2. (3) The pin joint device for a working machine according to claim 1, wherein the inner circumferential surface of the seal portion of the seal assembly has a ring-like lip shape that abuts the outer circumferential surface of the joint pin. (4) The pin joint device for a work machine according to claim 1, wherein the inner circumferential surface of the buffer portion of the seal assembly has a curved cross-sectional bulge shape that abuts the outer circumferential surface of the joint pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990055448U JPH0415646U (en) | 1990-05-28 | 1990-05-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990055448U JPH0415646U (en) | 1990-05-28 | 1990-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0415646U true JPH0415646U (en) | 1992-02-07 |
Family
ID=31578410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990055448U Pending JPH0415646U (en) | 1990-05-28 | 1990-05-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018172884A (en) * | 2017-03-31 | 2018-11-08 | 日立建機株式会社 | Device for preventing bush of hydraulic shovel from being pulled out |
-
1990
- 1990-05-28 JP JP1990055448U patent/JPH0415646U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018172884A (en) * | 2017-03-31 | 2018-11-08 | 日立建機株式会社 | Device for preventing bush of hydraulic shovel from being pulled out |