JPS61198357U - - Google Patents
Info
- Publication number
- JPS61198357U JPS61198357U JP7948785U JP7948785U JPS61198357U JP S61198357 U JPS61198357 U JP S61198357U JP 7948785 U JP7948785 U JP 7948785U JP 7948785 U JP7948785 U JP 7948785U JP S61198357 U JPS61198357 U JP S61198357U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- coupling groove
- corners
- radius
- arcuate inner
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Jib Cranes (AREA)
Description
第1図はこの考案の一実施例を示す側面図、第
2図は第1図の正面図、第3図はこの考案による
第一ブームの結合用溝とその溝に挿入した第二ブ
ームとを示す説明用正面図、第4図は第一ブーム
に第二ブームを連結した従来の油圧シヨベルの一
例を示す側面図、第5図は第4図のブームを示す
拡大側面図、第6図は第5図における第一ブーム
と第二ブームとの結合構造を示す拡大断面正面図
、第7図は第5図の第一ブームの上部を示す拡大
図、第8図は第一ブームの結合用溝とそれに挿入
した第二ブームとの関係を示す説明用正面図であ
る。
Fig. 1 is a side view showing an embodiment of this invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 shows the coupling groove of the first boom according to this invention and the second boom inserted into the groove. FIG. 4 is a side view showing an example of a conventional hydraulic excavator in which a second boom is connected to a first boom, FIG. 5 is an enlarged side view showing the boom in FIG. 4, and FIG. is an enlarged sectional front view showing the connection structure of the first boom and second boom in Fig. 5, Fig. 7 is an enlarged view showing the upper part of the first boom in Fig. 5, and Fig. 8 is an enlarged cross-sectional view showing the connection structure of the first boom and the second boom in Fig. 5. FIG. 3 is an explanatory front view showing the relationship between the irrigation groove and the second boom inserted therein.
Claims (1)
合用溝に第二ブームを挿入し、両者をピンにより
結合する建設機械のブームにおいて、前記結合用
溝の第二ブーム挿入側における端部の底部を下が
り勾配の先細に形成し、その底部の両側隅部の円
弧状内面の半径を、結合用溝のその他の両側隅部
の円弧状内面の半径より大きくしたことを特徴と
するブーム。 In a boom for construction machinery in which a coupling groove is provided at the upper end of the first boom, a second boom is inserted into the coupling groove, and both are coupled by a pin, the end of the coupling groove on the second boom insertion side The bottom of the boom is tapered downward, and the radius of the arcuate inner surface at both corners of the bottom is larger than the radius of the arcuate inner surface at the other both corners of the coupling groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7948785U JPH0329406Y2 (en) | 1985-05-28 | 1985-05-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7948785U JPH0329406Y2 (en) | 1985-05-28 | 1985-05-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61198357U true JPS61198357U (en) | 1986-12-11 |
JPH0329406Y2 JPH0329406Y2 (en) | 1991-06-24 |
Family
ID=30624446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7948785U Expired JPH0329406Y2 (en) | 1985-05-28 | 1985-05-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0329406Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014051847A (en) * | 2012-09-10 | 2014-03-20 | Sokuto Co Ltd | Work machine with separable boom |
-
1985
- 1985-05-28 JP JP7948785U patent/JPH0329406Y2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014051847A (en) * | 2012-09-10 | 2014-03-20 | Sokuto Co Ltd | Work machine with separable boom |
Also Published As
Publication number | Publication date |
---|---|
JPH0329406Y2 (en) | 1991-06-24 |
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