JPH047589U - - Google Patents
Info
- Publication number
- JPH047589U JPH047589U JP4970090U JP4970090U JPH047589U JP H047589 U JPH047589 U JP H047589U JP 4970090 U JP4970090 U JP 4970090U JP 4970090 U JP4970090 U JP 4970090U JP H047589 U JPH047589 U JP H047589U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- piston rod
- tip
- rod
- double
- 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
Description
第１図〜第３図は、本考案の三段伸縮ブーム装
置を示し、第１図は、三段伸縮ブーム装置の側面
図、第２図は、最伸長状態の三段伸縮ブーム装置
の側面図、第３図は、二本の伸縮シリンダで構成
される三段伸縮ブーム装置の平面図である。第４
図は、従来の三段伸縮ブーム装置を示す側面図で
ある。
３……基端側ブーム、４……中間ブーム、６…
…両ロツド型シリンダ装置、７ａ……シリンダ、
７ｂ……一方のピストンロツド、９，１０……連
結、１２……規制具、１２ａ，１２ｂ……係合部
。
1 to 3 show the three-stage telescopic boom device of the present invention, FIG. 1 is a side view of the three-stage telescopic boom device, and FIG. 2 is a side view of the three-stage telescopic boom device in the fully extended state. FIG. 3 is a plan view of a three-stage telescoping boom device composed of two telescoping cylinders. Fourth
The figure is a side view showing a conventional three-stage telescopic boom device. 3... Proximal boom, 4... Intermediate boom, 6...
...double rod type cylinder device, 7a... cylinder,
7b...One piston rod, 9, 10...Connection, 12...Restrictor, 12a, 12b...Engaging portion.
Claims (1)
縮駆動するにあたり両ロツド型シリンダ装置の一
方のピストンロツドの先端を基端側ブームの基端
部外側に、他方のピストンロツドの先端を先端側
ブームの先端部外側に、シリンダの前記他方のロ
ツド側端部を中間ブーム先端部外側に、それぞれ
連結してなる三段伸縮ブーム装置において、 前記基端側ブームの先端部外側と両ロツド型シ
リンダ装置のシリンダの前記一方のピストンロツ
ド側端部間に、一方のピストンロツドの最伸長状
態において係合し、少なくともシリンダのブーム
軸心からの離隔方向の動きを規制する規制具を取
付けてあることを特徴とする三段伸縮ブーム装置
。[Claim for Utility Model Registration] When a three-stage telescopic boom is telescopically driven by a double-rod type cylinder device, the tip of one piston rod of the double-rod type cylinder device is placed outside the proximal end of the proximal boom, and the piston rod of the other piston rod is In a three-stage telescopic boom device in which the tip is connected to the outside of the tip of the boom on the distal end side, and the other rod side end of the cylinder is connected to the outside of the tip of the intermediate boom, A restrictor is installed between the end portions of the cylinders of the double rod type cylinder device on the one piston rod side, which engages when the one piston rod is in its fully extended state and restricts at least the movement of the cylinder in a direction away from the boom axis. A three-stage telescopic boom device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4970090U JP2508101Y2 (en) | 1990-05-10 | 1990-05-10 | 3-stage telescopic boom device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4970090U JP2508101Y2 (en) | 1990-05-10 | 1990-05-10 | 3-stage telescopic boom device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH047589U true JPH047589U (en) | 1992-01-23 |
| JP2508101Y2 JP2508101Y2 (en) | 1996-08-21 |
Family
ID=31567621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4970090U Expired - Fee Related JP2508101Y2 (en) | 1990-05-10 | 1990-05-10 | 3-stage telescopic boom device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508101Y2 (en) |
-
1990
- 1990-05-10 JP JP4970090U patent/JP2508101Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508101Y2 (en) | 1996-08-21 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |