JPS63200596U - - Google Patents
Info
- Publication number
- JPS63200596U JPS63200596U JP9261387U JP9261387U JPS63200596U JP S63200596 U JPS63200596 U JP S63200596U JP 9261387 U JP9261387 U JP 9261387U JP 9261387 U JP9261387 U JP 9261387U JP S63200596 U JPS63200596 U JP S63200596U
- Authority
- JP
- Japan
- Prior art keywords
- boom member
- boom
- cylinder
- piston rod
- roller
- 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
- 230000008602 contraction Effects 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
Landscapes
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
第１図はこの考案の実施例を示す断面図、第２
図はそのＺ−Ｚ断面図、第３図は従来技術を説明
する高所作業車の側面図、第４図はその伸縮ブー
ムの断面図である。
３０……伸縮ブーム、３１〜３３……ブーム部
材、３４，３５……ピストンロツド、３６，３７
……シリンダ、３８……コロ、４０……ガイドレ
ール。
Figure 1 is a sectional view showing an embodiment of this invention, Figure 2 is a sectional view showing an embodiment of this invention.
The figure is a Z-Z sectional view of the same, FIG. 3 is a side view of a high-altitude work vehicle explaining the prior art, and FIG. 4 is a sectional view of the telescopic boom. 30... Telescopic boom, 31-33... Boom member, 34, 35... Piston rod, 36, 37
...Cylinder, 38...Colo, 40...Guide rail.
Claims (1)
ム部材内に第２のブーム部材を、第２のブーム部
材内に第３のブーム部材をそれぞれ摺動自由に挿
入して伸縮ブームを構成し、互いにピストンロツ
ドを逆向きにして抱き合わせ状態に連結した第１
と第２のシリンダを第２のブーム部材の内部に収
装し、第１のシリンダのピストンロツド先端を第
１のブーム部材に、第２のシリンダのピストンロ
ツド先端を第３のブーム部材にそれぞれ結合し、
第１のシリンダのピストンロツド側端部を第２の
ブーム部材の挿入側端部に連結し、このシリンダ
の基端部に第３のブーム部材の内面上を伸縮方向
に転動するコロを設け、第３のブーム部材にその
内面との間で上記コロを支持するガイドレールを
形成したことを特徴とする高所作業車などの伸縮
ブーム装置。 A telescopic boom is constructed by slidably inserting a second boom member into the first boom member and a third boom member into the second boom member from three tube-shaped boom members. , the first piston rods are connected in a tied state with the piston rods facing oppositely to each other.
and a second cylinder are housed inside the second boom member, and the piston rod tip of the first cylinder is coupled to the first boom member, and the piston rod tip of the second cylinder is coupled to the third boom member. ,
The piston rod side end of the first cylinder is connected to the insertion side end of the second boom member, and the proximal end of the cylinder is provided with a roller that rolls in the expansion and contraction direction on the inner surface of the third boom member, A telescopic boom device for an aerial work vehicle or the like, characterized in that a guide rail for supporting the roller is formed between the third boom member and an inner surface thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261387U JPS63200596U (en) | 1987-06-16 | 1987-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9261387U JPS63200596U (en) | 1987-06-16 | 1987-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63200596U true JPS63200596U (en) | 1988-12-23 |
Family
ID=30954472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9261387U Pending JPS63200596U (en) | 1987-06-16 | 1987-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63200596U (en) |
-
1987
- 1987-06-16 JP JP9261387U patent/JPS63200596U/ja active Pending
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