JPS59190192A - Safety device on cargo work of crane - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Specifically, a crane and a concrete pressure pipe are installed in the same tower, and cargo handling work by the crane and concrete casting work by the concrete pressure pipe can be performed at the same time.
This invention relates to a safety device for crane loading and unloading operations that enables safe loading and unloading operations.

BACKGROUND ART In recent years, in construction work, civil engineering work, etc., many methods have been adopted for concrete pouring work using concrete pressure pipes that are bent horizontally or vertically. When performing concrete pouring work at high places using this concrete pressure pipe, it is more convenient to install a crane and install the concrete pressure pipe on a tower rather than erecting a separate tower. However, even if a crane and a concrete pressure pipe are installed on the same tower, it is dangerous if the crane's suspended load passes over the area of concrete pouring work. Either one of the construction operations must be suspended. In addition, when carrying out both operations at the same time, it is necessary to place supervisors (two or more) in appropriate locations and give signals to each other so that the person jumping the crane and placing the concrete can confirm the position of the other person. The disadvantage is that it requires a lot of work.

The present invention installs a concrete pressure pipe on a tower with a crane installed, and safely performs cargo handling work using the crane and concrete pouring work using the concrete pressure pipe at the same time without the need for a supervisor. This is a safety device for cranes during cargo handling operations, which enables cranes to carry out cargo handling operations and improve their work efficiency. , the swing range of the crane and the swing/bend range of the concrete pumping pipe are set in advance so that they do not overlap around the above-mentioned hower, and when the crane swings beyond the swing range, or when the concrete pumping pipe When the pipe bends beyond its bending range, /''2
γ[At least, the crane operator should be able to detect this by sending a message, etc.

Embodiments of the invention will now be described in detail in the accompanying drawings.

Figure 1 is a front view of the entire device, and Figure 2 is a plan view of the same, showing that the rotating crane (1) and the rotating and bending concrete pressure pipe (2) are installed on the same tower (3). . The crane (1) consists of a jib (4), a bank turning room (5), a revolving frame (6), a revolving body support stand (power, etc.).The crane (1) also includes a revolving body as shown in Figure 3 The support base (swiveled by the pivot gear (8) on the corner, etc.)
It is used for cargo handling work. On the other hand, as shown in Fig. 4, the concrete pressure pipe (2) connects the mounting frame /9) and several intermediate frames +11 ends with vertical pipe part 01), and drives the worm wheel and worm gear. A bendable support arm is constructed by a mechanism, and extends along each of the frames and is inserted through a swivel joint into the vertical pipe section (11) of the soil planting section between the frames. The mounting frame (9) is rotatably mounted on the tower (3), and the concrete pressure pipe (2) is attached at that part.
) rotates and bends at the vertical tube part /11) of each frame. Although not shown, a concrete pressure pump on the ground is connected to this concrete pressure pipe (2) to perform concrete placement work. The turning and bending range (E) of the concrete pressure pipe (2) and the turning range IHI of the crane (1) are set in advance so as not to overlap with each other around the tower (3). The swing range 11 () of the crane (1) is the crane f
The turning and bending range fF,l of the concrete pressure pipe (2) is approximately equal to the range in which concrete is placed by the concrete pressure pipe (2).

The reason why these ranges ()fl and fEl are set so that they do not overlap with the tower (3) at the center is to prevent danger. Then, as shown in FIG. 5, when the crane (1) turns beyond its turning range fH1, or as shown in FIG. Alarm <1 when turning and bending
2 is activated. A sensor surface is attached to the swing frame (6) of the crane (1) to detect the swing angle of the crane (1) in conjunction with the swing gear (8), and the data of the swing angle of the crane (1) is processed by a microcomputer. Crane (1)
An alarm is issued when the turning range ff() exceeds a preset turning range ff(). On the other hand, sensors for detecting bending angles 21), 1, 1, C), 4) are attached to each soil connection part of the concrete pressure pipe (2), and each central IL connection part is The bending angle is detected by the above-mentioned sensor ゛, 1), l'! The data is processed by a microcomputer.As shown in FIG. 6, when the concrete pressure pipe (2) exceeds a preset turning/bending range fE), an alarm signal is issued. As shown in Figure 7, this alarm 021 is installed in the operator's cab (5) of the crane (1), and warns at least the operator of the crane (1) that the crane (1) has exceeded its turning range (mark). Or, it is sensed that the concrete pressure pipe C2+ has exceeded its turning bending range (El.
The driver of the crane may also be alerted by the alarm c#21, or a display (14) may be installed in the operator's cab (5) etc. to display the turning direction of the crane (1) and the position of the concrete pressure pipe. Safety can be further improved if the operator of the crane (1) etc. uses the display N (prefecture) to confirm the position of the crane (1) and the concrete pressure pipe (2) while operating the machine. preferable.

In addition, in FIG. 7, the reference numeral 0 shows the control panel.

As described above, the present invention installs the crane and the concrete field pipe in the hoe, so when performing concrete pouring work at a high place, there is no need to worry about erecting a separate tower, and moreover, the crane and the concrete field pipe are installed in the hoe. Cargo handling work and concrete pouring work using concrete pressure pipes can be performed at the same time.

In addition, the crane's turning/fanning range and the turning/bending range of the concrete pressure pipe are preset around the tower so that they do not overlap, and when the crane turns beyond its swing range, When the pipe exceeds its turning range, the operator is alerted by an alarm, etc., so there is no risk of the crane's suspended load passing through the pipe during concrete pouring work.
It is possible to carry out the servicing work and the concrete pouring work simultaneously and safely, and the efficiency of these works is also improved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a front view of the entire device, Fig. 2 is a plan view of the same, Fig. 3 is an enlarged view of a part of the crane, and Fig. 4 is a diagram of a concrete pressure pipe. An enlarged view of part 1, Figure 5 is an explanatory diagram of a state in which the crane has turned within its turning range, and Figure 6 is an explanatory diagram of a state in which the concrete pressure pipe has been turned and bent beyond its turning range. Figure 7 is a system diagram. In the figure, (1) is a crane, (2) is a concrete pressure pipe,
(3) is the tower, (121 is the alarm, Q31 is the sensor attached to the crane, so2])'@+'4; () and (2
4)) Sensor installed on concrete pressure pipe, (1)
() shows the turning range of the crane, and (E) shows the turning and bending range of the concrete pressure pipe. Applicant: Takenaka Corporation, Ogawa Manufacturing Co., Ltd., Kyokuto Kaihatsu Kogyo Co., Ltd., Owa Namisaki, page 1, continued 0 Inventor: Ishikawa COD, 8-21-1 Ginza, Chuo-ku, Tokyo Takenaka Corporation, Tokyo Co., Ltd. 0 inventions in the main office of Takenaka Corporation, Takashi Shiozaki 8-21-1 Ginza, Chuo-ku, Tokyo 0 inventions in the Tokyo main office of Takenaka Corporation, Masamitsu Kikuchi 8-21-1 Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Co., Ltd. 0 inventions in the main office Author: Hayao Aoyagi 2-5-14 Minamisuna, Koto-ku, Tokyo 0 inventors: Shoji Otaki 1-18-22 Nishikicho, Nishikicho, Naka-ku, Nagoya Takenaka Corporation Nagoya Co., Ltd. Continuing from page 1 in the branch 0 Inventor Taku Miura 4-4-1 Tokiwadaira, Matsudo City 0 Inventor Katsushi Tanaka 6-1-45 Koshien-ro, Nishinomiya City (C Inventor Nakamura Yamamen Kohoku-ku, Yokohama City 1577-0 Shinohara-cho Author: Shohei Marufuji, 2-12-1 Minami-Oimachi, Tokyo Parts District ■Applicant: Ogawa Seisakusho Co., Ltd. 435-13-0 Shinden, Matsudo, Matsudo City Applicant: Kyokuto Kaihatsu Kogyo Co., Ltd., Nishinomiya City Koshienguchi 6-chome Ichiban-45

Claims (1)

[Claims] A crane that swings and a concrete pressure pipe that swings and bends are installed on the same tower, and the swing range of the crane and the swing and bend range of the concrete pressure pipe are set so that they do not overlap around the tower (2). At least the crane operator (-) shall be made aware of this by means of an alarm, etc. A safety device for crane cargo handling operations featuring: