JPH034183U - - Google Patents
Info
- Publication number
- JPH034183U JPH034183U JP6306489U JP6306489U JPH034183U JP H034183 U JPH034183 U JP H034183U JP 6306489 U JP6306489 U JP 6306489U JP 6306489 U JP6306489 U JP 6306489U JP H034183 U JPH034183 U JP H034183U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- inner boom
- width
- section
- maximum width
- 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
Landscapes
- Jib Cranes (AREA)
Description
第１図ａは本考案に係る多段伸縮ブーム構造を
示す部材の展開図、第１図ｂはブームの要部断面
図、第２図ａは本考案に係る多段伸縮ブーム構造
を採用したクレーン車の斜視図、第２図ｂはブー
ムの断面図、第３図ａは従来の多段伸縮ブーム構
造を示す部材の展開図、第３図ｂは同ブームの要
部断面図である。
１……クレーン車、１ａ……車台、１ｂ……タ
ーンテーブル、２……ブーム、２ａ……アウター
ブーム、２ｂ……インナーブーム、３ａ……上板
、３ｂ……下板、４……側板。
Figure 1a is an exploded view of members showing the multistage telescopic boom structure according to the present invention, Figure 1b is a sectional view of the main parts of the boom, and Figure 2a is a crane vehicle adopting the multistage telescopic boom structure according to the present invention. FIG. 2b is a sectional view of the boom, FIG. 3a is a developed view of members showing a conventional multi-stage telescopic boom structure, and FIG. 3b is a sectional view of essential parts of the same boom. 1... Crane truck, 1a... Chassis, 1b... Turntable, 2... Boom, 2a... Outer boom, 2b... Inner boom, 3a... Upper plate, 3b... Lower plate, 4... Side plate .
Claims (1)
ーブームを伸縮自在に嵌入した伸縮ブーム構造に
於いて、上板、下板及び左右側板により構成され
る断面四角状のインナーブームの前記両側板の上
下折込部の折込み幅をインナーブームを全伸長状
態でアウターブーム先端部に当接する部分を最大
幅とし、該最大幅部分を境にその前・後方向にゆ
くにしたがい暫時幅を狭く構成したことを特徴と
する伸縮ブーム構造。 In a telescopic boom structure in which an inner boom is telescopically fitted into an outer boom installed on a work vehicle, the upper and lower sides of the inner boom, which has a square cross section and is composed of an upper plate, a lower plate, and left and right side plates, are folded up and down. The folding width of the section is the maximum width at the part where the inner boom contacts the tip of the outer boom when the inner boom is fully extended, and the width gradually becomes narrower as it goes forward and backward from the maximum width part. Telescopic boom structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6306489U JPH0646935Y2 (en) | 1989-05-31 | 1989-05-31 | Telescopic boom structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6306489U JPH0646935Y2 (en) | 1989-05-31 | 1989-05-31 | Telescopic boom structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH034183U true JPH034183U (en) | 1991-01-16 |
| JPH0646935Y2 JPH0646935Y2 (en) | 1994-11-30 |
Family
ID=31592784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6306489U Expired - Lifetime JPH0646935Y2 (en) | 1989-05-31 | 1989-05-31 | Telescopic boom structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646935Y2 (en) |
-
1989
- 1989-05-31 JP JP6306489U patent/JPH0646935Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0646935Y2 (en) | 1994-11-30 |