JPH0546881U - Folding triangular post in crane - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to make the triangular posts integral and foldable to facilitate assembly and disassembly. [Structure] In a triangular post composed of a front post 11, a rear post 12, and a center post 13, the center post 13 is divided into a front center post 13a and a rear center post 13b, and a pair of connecting ends is formed on each post. The brackets 18a, 18a and 18b, 18b forming the above are provided, and the left and right sides are connected by a pair of removable pins B and C to provide the intermediate joint portion 14. Then, at the time of transportation, the pin B inside the intermediate joint portion 14 is pulled out and folded, and the pendant link 16 connects the front post 11 and the rear post 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a folding triangular post in a crane.

[0002]

[Prior Art]

 5 and 6 show a conventional triangular post. The triangular post pivotally supported on the tower head 1 is composed of a front post 2, a rear post 3 and a center post 4. When it is used, it is assembled in a triangular shape as shown in FIG. 6, but it is detached from the tower head 1 and the center post 4 is detached from the connecting portions 6 and 7 of the front post 2 and the rear post 3 (FIG. 8). ), The front post 2 and the rear post 3 were folded at the pivoting portion 5 of the triangular post foot 9, and the free end side was joined by the pendant link 8 pivotally attached to the front post 2.

As described above, since the center post 4 is carried as a separate body as shown in FIG. 8 during transportation, there is a problem in that it takes time to assemble and disassemble.

[0004]

[Problems to be solved by the device]

 In view of the problems of the prior art, an object of the present invention is to make a triangular post integrated and foldable so as to facilitate assembly and disassembly.

[0005]

[Means for Solving the Problems]

 In a triangular post consisting of a front post 11, a rear post 12, and a center post 13, the center post 13 is divided into a front center post 13a and a rear center post 13b, and a pair of brackets is formed at the joint end of each post. 18a, 18a and 18b, 18b are provided, and an intermediate joint portion 14 that can be folded with a pair of pins B and C that can be attached to the left and right sides is provided. During transportation, the inner pin B of the pair of pins B and C of the intermediate joint portion 14 is pulled out and folded, and the pendant link 16 connects the front post 11 and the rear post 12.

[0006]

【Example】

 A description will be given based on FIGS. 1 to 4. FIG. 1 shows an assembled state of the triangular post during operation. Reference numeral 11 is a front post, 12 is a rear post, and 13 is a center post. The center post 13 is composed of a front center post 13a and a rear center post 13b that can be folded inward at the intermediate joint portion 14.

The front post 11 and the rear post 12 are foldably connected by a triangular post foot 15. A pendant link 16 and a front center post 13a are pin-connected to the other end of the front post 11, respectively. A rear center post 13b and a rope link 17 are attached to the other end of the rear post 12.

As shown in FIG. 2, brackets 18a and 18b are attached to the joint portion 14 of the center post 13 in pairs, and the pins B and C are inserted into the pin holes provided in these brackets to join them. ing.

A is a pin hole provided in the pendant link 16 and D is a pin hole provided in the rear post 12, which is used for coupling with the pendant link 16 when folded.

[0010]

[Folding method]

 To fold it from the assembled state (state during operation) shown in FIG. 1 for transportation, 1) Pull out the pin B at the joint 14 of the front center post 13a. 2) Fold the front center post 13a and the phosphorus center post 13b inward using the remaining pin C as a fulcrum (Fig. 4). 3) Cut off the rope from the rope link 17. 4) As shown in FIG. 4, the pin hole A provided in the pendant link 16 is aligned with the pin hole D provided in the end portion of the rear post 12, and the pins are joined together.

[0011]

【effect】

 Since the center post 13 can be folded at the intermediate joint portion 14, it is possible to avoid the trouble of carrying the center post 13 by dividing it during transportation and to prevent loss. In addition, the work is done at a high place where the rear post 12 and the center post 13 are connected at the time of transportation.

[Brief description of drawings]

FIG. 1 shows an assembled state of a triangular post according to the present invention.

FIG. 2 is a front view of an intermediate joint portion.

FIG. 3 is a right side view of FIG.

FIG. 4 is a view showing a joint portion of a triangular post according to the present invention in a folded and folded state.

FIG. 5 shows a state in which the triangular post is attached to the tower head.

FIG. 6 is a plan view of a conventional triangular post.

FIG. 7 is a front view of the same folded state.

FIG. 8 is a bottom view of FIG.

[Explanation of symbols]

 1 Tower Head 2 Front Post 3 Rear Post 4 Center Post 5 Pivoting Section 6, 7 Coupling Section 8 Pendant Link 9 Triangular Post Foot 11 Front Post 12 Rear Post 13 Center Post 13a Front Center Post 13b Rear Center Post 14 Intermediate joint 15 Triangle post foot 16 Pendant link 17 Rope link 18a, 18b Bracket A, D pin hole B, C pin

Claims (2)

[Scope of utility model registration request] 1. A triangular post comprising a front post (11), a rear post (12) and a center post (13), wherein the center post (13) is a front center post (13a) and a rear center post (13a). 13b), and brackets (18a, 18a) and (18b, 18b) that form a pair at the joint end of each post are provided, and the left and right sides can be folded with a pair of removable pins (B and C) A foldable triangular post in a crane characterized by having a joint (14). 2. A pair of pins of the intermediate joint part (14) during transportation.
Remove the inner pin (B) from (B and C) and fold it in, and use the pendant link (16) to insert the front post (11) and rear post (12).
The foldable triangular post in the crane of claim 1, wherein the ends of the two are joined together.