JPS63173186U - - Google Patents
Info
- Publication number
- JPS63173186U JPS63173186U JP6463287U JP6463287U JPS63173186U JP S63173186 U JPS63173186 U JP S63173186U JP 6463287 U JP6463287 U JP 6463287U JP 6463287 U JP6463287 U JP 6463287U JP S63173186 U JPS63173186 U JP S63173186U
- Authority
- JP
- Japan
- Prior art keywords
- jib
- main spar
- base end
- main
- sides
- 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
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
Landscapes
- Jib Cranes (AREA)
Description
第１図乃至第９図は本考案の基本実施例を示し
、第１図はジブ格納状態、第２図はジブ垂下状態
、第３図はジブツイスト途中状態、第４図はジブ
ツイスト完了状態をそれぞれ示す側面図、第５図
は第４図状態の正面図、第６図はさらにジブを垂
直に引き上げた状態の正面図、第７図はジブ張出
し状態の側面図、第８図は第１図状態の部分拡大
斜視図、第９図は片側ジブフツト取付部分の拡大
断面図、第１０図は本考案の他の実施例を示す第
９図相当図、第１１図は第１０図Ａ―Ａ線拡大断
面図、第１２図は第１１図Ｂ―Ｂ線、第１３図は
同Ｃ―Ｃ線各断面図、第１４図は従来例を示すジ
ブ格納状態の側面図、第１５図は同平面図、第１
６図は同ジブ垂下状態、第１７図は同張出し状態
をそれぞれ示す側面図である。
３…伸縮ブーム、３１…格納時下側ジブ取付軸
、４…ジブ、４ａ…格納時下側となる主桁、ｘ…
同主桁の軸心、４ｂ…格納時上側となる主桁、４
１…格納時下側となる回転およびスライド自在な
ジブフツト、４２…上側ジブフツト、４３…下側
ジブフツト取付用のロツド、４４…同軸受。
Figures 1 to 9 show the basic embodiment of the present invention. Figure 1 shows the jib in the retracted state, Figure 2 shows the jib in the hanging state, Figure 3 shows the jib in the middle of twisting, and Figure 4 shows the jib in the completed twisting state. Fig. 5 is a front view of the state shown in Fig. 4, Fig. 6 is a front view of the state in which the jib is further pulled up vertically, Fig. 7 is a side view of the jib extended state, and Fig. 8 is a front view of the state shown in Fig. 1. FIG. 9 is an enlarged cross-sectional view of the mounting part of the jib foot on one side, FIG. 10 is a view corresponding to FIG. 9 showing another embodiment of the present invention, and FIG. 11 is a line taken along line A-A in FIG. 10. An enlarged sectional view, Fig. 12 is a sectional view taken along the line B-B in Fig. 11, Fig. 13 is a sectional view taken along the line C-C in Fig. 11, Fig. 14 is a side view of the conventional example in the jib retracted state, and Fig. 15 is the same plane. Figure, 1st
FIG. 6 is a side view showing the jib in a hanging state, and FIG. 17 is a side view showing the jib in an extended state. 3...Telescopic boom, 31...Lower side jib mounting shaft when stored, 4...Jib, 4a...Main girder that becomes lower side when stored, x...
Axis center of the main girder, 4b... Main girder that will be on the upper side when stored, 4
DESCRIPTION OF SYMBOLS 1... A rotatable and slidable jib foot which becomes the lower side when stored, 42... Upper jib foot, 43... Rod for attaching the lower jib foot, 44... Co-bearing.
Claims (1)
圧縮柱式ジブとを備え、このジブは、両側主桁が
上下に位置する竪置き姿勢でブーム横側面に格納
されるクレーンにおいて、上記ブームの先端部左
右両側にジブ取付軸が突設される一方、上記ジブ
における両側主桁の基端部にそれぞれ上記両側ジ
ブ取付軸に対して同取付軸まわりに回動可能かつ
脱着可能に連結されるジブフツトが設けられ、こ
の両側ジブフツトのうち、一方のジブフツトは、
ジブ片側主桁の基端部に対し、同主桁の軸心上に
おいて、同主桁基端部から離間する進出位置と、
同主桁基端部に接近する後退位置との間でスライ
ド自在、および同主桁軸心まわりに回転自在に取
付けられてなることを特徴とするクレーンのジブ
張出し、格納装置。 The jib is equipped with a telescoping boom and a compression column type jib that extends from the tip of the boom. Jib mounting shafts protrude from both left and right sides of the jib, and jib feet are rotatably and detachably connected to the base ends of the main girders on both sides of the jib, respectively. is provided, and one of the jib feet on both sides is
With respect to the base end of the main spar on one side of the jib, an advanced position that is spaced from the base end of the main spar on the axis of the main spar;
1. A crane jib extension and storage device, characterized in that the jib is slidably moved between a retracted position approaching the base end of the main spar and is rotatably mounted around the axis of the main spar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987064632U JPH0350150Y2 (en) | 1987-04-28 | 1987-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987064632U JPH0350150Y2 (en) | 1987-04-28 | 1987-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63173186U true JPS63173186U (en) | 1988-11-10 |
| JPH0350150Y2 JPH0350150Y2 (en) | 1991-10-25 |
Family
ID=30900963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987064632U Expired JPH0350150Y2 (en) | 1987-04-28 | 1987-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350150Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186386A (en) * | 1984-10-03 | 1986-05-01 | 石川島播磨重工業株式会社 | Jib projecting and housing method of multistage expansion boom type crane |
-
1987
- 1987-04-28 JP JP1987064632U patent/JPH0350150Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186386A (en) * | 1984-10-03 | 1986-05-01 | 石川島播磨重工業株式会社 | Jib projecting and housing method of multistage expansion boom type crane |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0350150Y2 (en) | 1991-10-25 |
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