JPH0735482U - Receiving material for loading crane undulation wire - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a receiving material used for the preparation work in which the undulating wire is regularly stretched when the use of the jib type crane used for construction is started. [Structure] A plurality of wire receivers 3 are attached to the side surface of the boom 2 by hinges 4 at the base ends thereof. A post 6 is provided vertically upward at the tip of the wire receiver 3, and a holder 7 is provided at a position for receiving the post 6. The hinge 4 is one in which a U-shaped bearing metal 8 is fixed to the side surface of the boom 2, and the base end of the wire receiver 3 is rotatably attached. [Effect] Since the wire receiver 3 is installed in advance on the boom 2, the operator does not need to have a single pipe, and can easily climb into the boom of the crane and carry out the preparation work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a receiving object used for preparation work in which an undulating wire is regularly stretched when starting use of a jib type crane used for construction and the like.

[0002]

[Prior art]

 In the past, when assembling a jib-type crane and starting to use it, the crane erection wire was charged. At that time, as a hardware that receives the hanging wire without disturbing it, conventionally, a detachable single tube was attached so as to project to both outsides of the boom, and the wire that droops during the work of loading the wire is supported by the single tube described above. Was there. Further, after the work of charging the wire was completed, the single pipe was removed.

[0003]

[Problems to be solved by the present invention]

 As in the past, when attaching multiple single pipes to the boom of a crane as receiving materials for wire preparation at approximately equal intervals, the worker carries the single pipe and climbs to a high boom, so the foothold is bad. It was unstable and labor-intensive, and it was dangerous because it was a work in high places. Moreover, it is even more difficult since the single pipe must be removed in the same working environment after carrying out the wire preparation work, and must carry the boom to get off the boom.

[0004] Therefore, an object of the present invention is to provide a crane undulating wire charging receiver which enables workers to securely perform high-altitude work for preparing a receiver in a short time and without carrying a single pipe. It is to be.

[0005]

[Means for Solving the Problems]

 As means for solving the above-mentioned problems, a crane hoisting wire charging receiver according to the present invention has a plurality of wire receivers 3 on a side surface portion of a boom 2 of a crane 1 and a base end portion of which is supported by a hinge 4. It is characterized in that it is rotatably attached from a position where it is unfolded horizontally from the side of the boom 2 to a position where it is folded and stored along the boom 2.

According to the present invention, a post 6 for accommodating and preventing the wire 5 from coming off is provided vertically upward at the tip of the wire receiver 3, and the wire receiver 3 is rotated by the hinge 4 in the boom 2. It is also characterized in that a holder 7 is provided at a position for receiving the post 6 when the posture is parallel to the boom 2. Further, the hinge 4 has a configuration in which a U-shaped bearing metal 8 is fixed to the side surface of the boom 2, and the base end of the wire receiver 3 is rotatably attached to the bearing metal 8 by a pin 9. The bearing hardware 8 is also characterized in that it has a positioning portion 8a for stopping the wire receiver 3 at a position where the wire receiver 3 is deployed in a direction substantially perpendicular to the longitudinal direction of the boom 2.

[0007]

[Action]

 The wire receiver 3 is rotated around the hinge 4 to be expanded (protruded) to the side of the boom 2 at a substantially right angle, and the wire 5 that hangs down during the preparation work is received. Since the post 6 is provided vertically upward on the tip of the wire receiver 3, detachment of the received wire 5 is prevented. After the work of loading the wire 5 is completed, the wire receiver 3 can be folded parallel to the side surface of the boom 2. The post 6 of the folded wire receiver 3 is held by the holder 7 installed on the boom 2 and is firmly fixed, so that the operation of the boom 2 is not hindered.

[0008]

【Example】

 Hereinafter, the illustrated embodiment of the present invention will be described. FIG. 1 shows a state in which the hoisting wire is loaded in the assembled jib crane. The height of the crane 1 is suitable for the work of loading the wire 5. The wire receivers 3 are symmetrically arranged on both side surfaces of the boom 2 of the crane 1, and are attached by three-pair hinges 4 at substantially equal intervals in the length direction of the boom 2 (see FIG. 2). The wire receiver 3 is formed of, for example, a square steel tube having a side of a little less than 10 cm and a length of about 1 m so as to have a strength required to support at least the wire 5.

As a specific configuration of the hinge 4 for attaching the base end portion of the wire receiver 3 to the side surface of the boom 2, a U-shaped bearing metal fitting 8 is fixed to a side surface of an upper end material forming the boom 2 (see FIG. 4). The base end of the wire receiver 3 is rotatably attached to the bearing hardware 8 by a pin 9 (see FIG. 3). Therefore, the wire receiver 3 can rotate in a plane parallel to the longitudinal direction of the boom 2. To be more specific, as shown in FIG. 3, the folding position shown by the two-dot chain line that is parallel to the side surface of the boom 2 from the deployed position that is protruded at a right angle and is stopped by the positioning portion 8a of the bearing hardware 8 It is possible to rotate about 90 degrees to the position. The wire receiver 3 receives and supports the wire 5 at the time of preparation operation at a position where the wire receiver 3 is deployed at a substantially right angle.

A post 6 is provided vertically upward on the tip of the upper surface of the wire receiver 3. The post 6 has such a height that the wire 5 does not come off during the work of preparing the wire 5. On the other hand, the boom 2 is provided with a retainer 7 at a position for receiving the post 6 when the wire receiver 3 rotates about the hinge 4 and assumes a folding posture parallel to the boom 2. As shown in FIG. 3, the holder 7 is formed in a substantially U shape in which the post 6 is elastically sandwiched by an elastic metal plate. Therefore, at the start of the work of loading the wire 5, the wire receiver 3 is rotated until the post 6 is pulled out from the holder 7 by the hand of the worker who has climbed the boom and hits the positioning portion 8a of the bearing hardware 8, Deploy the boom 2 at a right angle to the side surface.

After the completion of the preparation work of the wire 5, the wire receiver 3 becomes parallel to the side surface of the boom 2 by the hand of the worker who also climbed the boom, contrary to the start of the preparation work. The post 6 of the wire receiver 3 is held by the holder 7 of the boom 2 and fixed in the stored state by rotating the post by about 90 degrees to the position (folding position of the chain double-dashed line shown in FIG. 3).

[0012]

[Effects of the present invention]

 According to the crane hoisting wire charging device according to the present invention, since the wire receiver 3 is pre-installed on the boom 2, the worker does not have to carry a single pipe around the boom boom of the crane. You can easily carry out the preparation work. Therefore, a worker working at a high place can safely work in a short time even on a boom with poor footing.

[Brief description of drawings]

FIG. 1 is an elevational view showing a state in which a hoisting wire is loaded in a jib type crane.

FIG. 2 is a plan view showing a state in which a hoisting wire of a jib type crane is loaded.

FIG. 3 is a plan view showing an attached state of a wire receiver in a jib type crane.

FIG. 4 is a cross-sectional view showing an attached state of a wire receiver in a jib type crane.

[Explanation of symbols]

 1 Crane 2 Boom 3 Wire Receiver 4 Hinge 5 Wire 6 Post 7 Holding Tool 8 Bearing Hardware 9 Pin 8a Positioning Section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inquirer, Kyoji Shibata, 4-20-20 Tenjin, Chuo-ku, Fukuoka City Stock company Takenaka Corporation Kyushu Branch (72) Inventor, Hiroshi Ishijima 4-chome, Tenjin, Chuo-ku, Fukuoka No. 20 Stock company Takenaka Corporation Kyushu Branch

Claims (3)

[Scope of utility model registration request] 1. A plurality of wire receivers on a boom side surface of a crane are rotatably supported by hinges at base ends thereof from a position horizontally extended from a side surface of the boom to a position where the boom is folded and stored along the boom. Receiving material for loading crane undulating wire, characterized by being installed. 2. A post for accommodating and preventing wire detachment is provided vertically upward at the tip of the wire receiver, and when the wire receiver is pivoted by a hinge in the boom and is in a posture parallel to the boom, the post is provided. The holding device is provided at a position for receiving the receiving member.
Receiving material for loading the crane undulation wire described in. 3. The hinge has a structure in which a U-shaped bearing metal fitting is fixed to a side surface of a boom, and a base end portion of a wire receiver is rotatably attached to the bearing metal fitting by a pin, and the bearing metal fitting is the wire. The crane undulating wire charging receiving article according to claim 1, further comprising: a positioning portion that stops the receiver at a position where the receiver is deployed in a direction substantially perpendicular to the longitudinal direction of the boom.