JPH0270052U - - Google Patents
Info
- Publication number
- JPH0270052U JPH0270052U JP1988150154U JP15015488U JPH0270052U JP H0270052 U JPH0270052 U JP H0270052U JP 1988150154 U JP1988150154 U JP 1988150154U JP 15015488 U JP15015488 U JP 15015488U JP H0270052 U JPH0270052 U JP H0270052U
- Authority
- JP
- Japan
- Prior art keywords
- boss
- pivot
- pin
- sealing material
- pivot pin
- 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
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims 4
- 238000010276 construction Methods 0.000 claims 1
- 239000013013 elastic material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 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
- Pivots And Pivotal Connections (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
第１図は、本考案による枢支部構造を有するバ
ツクホーの側面図。第２図は、同要部の断面図。
第３図は、同要部の拡大断面図。第４図は、他の
実施例としての枢支部の断面図。第５図は、他の
実施例としての座席の平面図。第６図は、同座席
の正面図。第７図は、もう一つの他の実施例とし
ての座席の平面図。第８図は、同座席の正面図。
Ａ：バツクホー、１７：枢支ピン、２０：ボス
、２１，２１′：左右枢支用突片、２２，２２′
：左右ピン挿通孔、２５，２５′：シール材、２
６：グリース供給路。
FIG. 1 is a side view of a backhoe having a pivot structure according to the present invention. FIG. 2 is a sectional view of the main part.
FIG. 3 is an enlarged sectional view of the main part. FIG. 4 is a sectional view of a pivot portion as another embodiment. FIG. 5 is a plan view of a seat as another embodiment. Figure 6 is a front view of the seat. FIG. 7 is a plan view of a seat as another embodiment. Figure 8 is a front view of the seat. A: Backhoe, 17: Pivot pin, 20: Boss, 21, 21': Left and right pivot pieces, 22, 22'
: Left and right pin insertion holes, 25, 25': Seal material, 2
6: Grease supply path.
Claims (1)
支用突片２１，２１′間に、同ピン挿通孔２２，
２２′と符合させてボス２０を介在させ、同ピン
挿通孔２２，２２′中及びボス２０中に枢支ピン
１７を貫通させて、左右枢支用突片２１，２１′
を支持する部材とボス２０を支持する部材とを、
相互に回動自在に連結し、各枢支用突片２１，２
１′の内側とボス２０の側端面との間に、それぞ
れ弾性素材よりなるリング状のシール材２５，２
５′を、枢支ピン１７に嵌合状態で介在させ、各
シール材２５，２５′の内周壁に設けた開口部２
５ａ，２５ａ′と対向する枢支ピン１７の外周面
位置に、同枢支ピン１７中に設けたグリース供給
路２６の開口端を位置させ、同供給路２６中を通
してシール材２５内にグリースを供給して、同シ
ール材２５を枢支ピン１９の軸線方向に膨張可能
としてなる遣設機械における作業機回動支点ピン
の枢支部構造。 A pin insertion hole 22, 22' is provided between a pair of left and right pivot pieces 21, 21' having pin insertion holes 22, 22'.
22', a boss 20 is interposed therebetween, and the pivot pin 17 is passed through the pin insertion holes 22, 22' and into the boss 20, and the left and right pivot protrusions 21, 21' are inserted.
A member supporting the boss 20 and a member supporting the boss 20,
The respective pivoting protrusions 21, 2 are rotatably connected to each other.
A ring-shaped sealing material 25, 2 made of an elastic material is provided between the inner side of the boss 20 and the side end surface of the boss 20, respectively.
5' is interposed in a fitted state with the pivot pin 17, and the opening 2 is provided in the inner circumferential wall of each sealing material 25, 25'.
The open end of the grease supply passage 26 provided in the pivot pin 17 is located at the outer peripheral surface of the pivot pin 17 facing the pivot pins 5a and 25a', and the grease is passed through the supply passage 26 into the sealing material 25. A pivot support structure for a working machine rotation fulcrum pin in a construction machine in which the sealing material 25 can be expanded in the axial direction of the pivot pin 19 by supplying the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988150154U JPH0270052U (en) | 1988-11-16 | 1988-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988150154U JPH0270052U (en) | 1988-11-16 | 1988-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0270052U true JPH0270052U (en) | 1990-05-28 |
Family
ID=31423040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988150154U Pending JPH0270052U (en) | 1988-11-16 | 1988-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072489A (en) * | 2011-09-28 | 2013-04-22 | Takeuchi Seisakusho:Kk | Shaft part sealing structure for working machine |
-
1988
- 1988-11-16 JP JP1988150154U patent/JPH0270052U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072489A (en) * | 2011-09-28 | 2013-04-22 | Takeuchi Seisakusho:Kk | Shaft part sealing structure for working machine |