JP2012056751A - Construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction machine having a simple structure and capable of visually recognizing a sheave, an operation lever, a brake pedal and a mode checking lamp corresponding to each winch drum, improving the safety, and efficiently executing the assembly work.SOLUTION: An upper turning body 13 having a plurality of winch drums, a plurality of sheaves for stretching a wire rope wound around each winch drum thereto, and an operating room 15 is turnably mounted on an upper part of a lower traveling body 12. Operation levers 32, 33, 34 corresponding to the winch drums 22, 24, 26, brake pedals 38, 39, 40, and mode checking lamps 35, 36, 37 for checking the brake mode and the free-fall mode are arranged in the operating room 15. Each winch drum is colored to different colors, and the color of a drum cover, the sheave, the brake pedal, the operation lever and the mode checking lamp is same as each wind drum corresponding thereto.

Description

  The present invention relates to a construction machine such as a crane and a pile driver, and more specifically, includes a plurality of winch drums, a plurality of sheaves, and a cab in which a plurality of wire ropes are bridged on an upper swing body, The present invention relates to a construction machine in which an operation lever corresponding to each winch drum, a brake pedal, and a mode confirmation lamp for confirming a brake mode and a free fall mode are arranged.

  Conventionally, in the cab of a construction machine such as a crane or a pile driver, operation of a plurality of winch drums mounted on the upper swing body, operation of a pair of crawlers arranged on the lower traveling body, and swing operation of the upper swing body A plurality of operating levers and a brake pedal for each winch drum are provided. In order to prevent malfunctions of the multiple winch drums and control levers, the control levers and brake pedals are colored in the same color for each winch drum, and the driver determines which control lever and brake pedal correspond to each other. Have been made visible easily (see, for example, Patent Document 1).

  In addition, as a winch drum equipped in cranes, etc., the brake is automatically held when the control lever is neutral and the load (suspended load) is held so that the load (suspended load) does not drop. There was one provided with a free fall mode in which the load falls freely by its own weight when released (see, for example, Patent Document 2).

Japanese Patent No. 3096886 JP 2000-143176 A

  However, in the thing of the above-mentioned patent document 1, since the operation lever and brake pedal corresponding to each winch drum are colored in the same color, the malfunction can be prevented to some extent, but as in patent document 2 Even when the mode check lamp provided for each winch drum is turned on when switching between the brake mode and the free fall mode, the upper swing body includes a plurality of winch drums on which a plurality of wire ropes are bridged. Since a plurality of sheaves are provided, the driver sometimes has difficulty in determining a winch drum or a plurality of sheaves that are operating by operating an operation lever or a brake pedal.

  Also, when assembling a construction machine, it is necessary to hang many wire ropes around many winch drums and many guide sheaves, so it takes time and effort to hang the wire ropes. There was a risk of winding around the sheave.

  Therefore, the present invention has a simple structure and can visually recognize a sheave, an operation lever, a brake pedal, and a mode confirmation lamp corresponding to each winch drum, thereby improving safety and reducing the time required for assembly work. The object is to provide a construction machine that can be shortened.

  In order to achieve the above object, a construction machine of the present invention includes a plurality of winch drums, a plurality of sheaves each spanning a wire rope wound around each winch drum, and a driver's cab on the lower traveling body. The upper revolving unit is mounted so as to be capable of swiveling, and an operation lever corresponding to each winch drum, a brake pedal, and a mode confirmation lamp for confirming a brake mode and a free fall mode are arranged in the cab. In the machine, the winch drums are colored in different colors, and the sheave, the brake pedal, the operation lever, and the mode check lamp are respectively the same color corresponding to the winch drum. Yes.

  According to the construction machine of the present invention, since the sheave corresponding to each winch drum, the operation lever, the brake pedal, and the mode confirmation lamp are the same color, the driver can connect the brake pedal and the operation lever of the same color. By operating, you can prevent malfunction, and by visually recognizing the mode confirmation lamp of the same color, you can check whether the winch drum is in the brake mode state or free fall mode state, and there is a risk that the winch drum mode will be wrong There is no. In addition, the same color of the unison drum and sheave are operated by operating the brake pedal and control lever of the same color, so that the driver can visually recognize the operating union drum and multiple sheaves, and work safety It is possible to improve the performance. Also, when assembling construction machinery, if you need to use many winch drums and many guide sheaves to hang many wire ropes, color the sheaves corresponding to each winch drum to the same color as the winch drum Thus, there is no risk of winding the wire rope around the wrong sheave, and the time required for the assembly work can be shortened.

It is explanatory drawing of the pile driver which shows one example of this invention. It is a side view of a pile driver similarly.

  FIG. 1 and FIG. 2 are diagrams showing an embodiment in which the present invention is applied to a pile driving machine. The pile driving machine 11 is provided with a lower traveling body 12 provided with a crawler and a swivel on the lower traveling body 12. The upper swing body 13 includes a leader 14 that can be raised and lowered at a front portion of the upper swing body 13, and a plurality of winch drums around which wire ropes used for various purposes are wound. And a plurality of sheaves for guiding the wire rope from each winch drum, and a driver's cab 15, and a working device 16 such as an auger driving device or a hammer can be moved up and down along the leader 14 on the front side of the leader 14. Is provided.

  The plurality of winch drums are provided side by side at the center in the width direction on the upper swing body 13 with the axis line in the width direction, and the first wire rope is arranged in the first row in order from the front of the upper swing body 13. A first winch drum (main drum) 22 for winding 21 is disposed in the second row behind the first winch drum 22, and a second winch drum (sub drum) 24 for winding a second wire rope 23 is disposed in the second row. Three units of third winch drums (third drums) 26 around which the third wire ropes 25 are wound are arranged in the third row behind the second winch drum 24. Each winch drum 22, 24, 26 is provided with drum covers 22a, 24a, 26a.

  The first wire rope 21 wound around the first winch drum 22 passes through the lower first guide sheave 27a provided on the front bracket and passes through the upper first guide sheave 27b provided on the upper back surface of the leader 14 and the top. A fixed first guide sheave block 27d provided at the front portion of the top sheave block through a rear first top sheave 27c provided at the rear portion of the sheave block, and a moving side first guide sheave block 27e provided at the working device 16 After being routed, the rope ends are fixed before and after the top sheave block. Therefore, the working device 16 can be moved up and down along the leader 14 by operating the first winch drum 22 to wind up or feed out the first wire rope 21.

  The second wire rope 23 wound around the second winch drum 24 rises upward and passes from the first gantry sheave 28a provided on the gantry 17 to the lower second guide sheave 28b provided on the front bracket. The upper second guide sheave 28c provided on the upper rear surface of the reader 14, the rear second top sheave 28d provided on the rear portion of the top sheave block, and the first side guide sheave 28e arranged on one side of the reader 14 Used to lift the pile 18 and the like.

  The third wire rope 25 wound around the third winch drum 26 rises upward and passes from the second gantry sheave 29a provided on the gantry 17 to the lower third guide sheave 29b provided on the front bracket. The upper third guide sheave 29c provided on the upper rear surface of the reader 14, the rear third top sheave 29d provided on the rear portion of the top sheave block, and a plurality of second side guide sheaves 29e arranged on one side of the reader 14 After that, it hangs down to one side of the reader 14 and is added at the side of the reader 14 to be used for lifting the rod 19 and the like.

  An operation stand 31 is provided in front of the cab 15, and the operation stand 31 has a main drum operation lever 32, a sub drum operation lever 33, and a plurality of winch drums 22, 24, and 26. A third drum operation lever 34 is disposed, and a plurality of other operation levers such as a travel lever, an accelerator lever, a leader raising / lowering lever, a swing lever, an outrigger lever, and a jack lever are disposed.

  Further, in the vicinity of the main drum operation lever 32, the sub drum operation lever 33, and the third drum operation lever 34 of the operation stand 31, the first winch drum 22, the second winch drum 24, and the third winch drum 26 are in the brake mode state. A first winch mode confirmation lamp 35, a second winch mode confirmation lamp 36, and a third winch mode confirmation lamp 37 are arranged for confirming whether the state is a free fall mode state. Further, a main drum brake pedal 38, a sub drum brake pedal 39, and a third drum brake pedal 40 are disposed on the floor in front of the operation stand 31.

  For example, the first winch drum 22 and the drum cover 22a, the lower first guide sheave 27a, the upper first guide sheave 27b, the rear first top sheave 27c, and the fixed first guide sheave block 27d are colored red. At the same time, a knob colored red is attached to the main drum operation lever 32, a rubber cover colored red is put on the main drum brake pedal 38, and a transparent cover colored red is placed on the first winch mode confirmation lamp 35. Attach and unify the one related to the first winch drum 22 in red.

  Further, the second winch drum 24 and the drum cover 24a, the lower second guide sheave 28b, the upper second guide sheave 28c, the rear second top sheave 28d, and the first side guide sheave 28e are colored blue, and the sub drum A blue colored knob is attached to the operating lever 33, a blue colored rubber cover is put on the sub drum brake pedal 39, and a blue colored transparent cover is attached to the second winch mode confirmation lamp 36, The thing related to the 2nd winch drum 24 is unified into blue.

  Further, the third winch drum 26 and the drum cover 26a, the lower third guide sheave 29b, the upper third guide sheave 29c, the rear third top sheave 29d, and the second side guide sheave 29e are colored yellow, respectively. The drum operation lever 34 is provided with a yellow colored knob, the third drum brake pedal 40 is covered with a yellow colored rubber cover, and the third winch mode confirmation lamp 37 is attached with a yellow colored transparent cover. , And unifying the thing related to the 3rd winch drum 26 in yellow.

  In this way, the corresponding winch drum, drum cover, sheave, operation lever, brake pedal, and confirmation lamp are color-coded, so that the driver can operate the operation lever and brake pedal colored in the same color. Further, malfunction can be prevented, and further, whether the brake mode state or the free fall mode state can be confirmed by the mode confirmation lamps colored in the same color, there is no possibility that the mode of the winch drum being operated is wrong. In addition, by operating the same color brake pedal and operation lever, the same color of the uncoil drum and sheave are operated, so the driver can visually recognize the uncoil drum and the plurality of sheaves in operation, The work safety can be improved. Further, by making each confirmation lamp 35, 36, 37 recognizable from the outside, or by providing a lamp of the same color as each confirmation lamp 35, 36, 37 outside the upper swing body 13, work other than the driver is performed. The user can also recognize which winch drum and guide sheave are in operation, and can improve work safety. Also, when assembling the pile driver, it is necessary to hang many wire ropes using many winch drums and many guide sheaves, but the sheave and winch drum corresponding to each winch drum are color-coded in the same color As a result, the time required for the assembly work can be shortened, and there is no possibility of winding the wire rope around an incorrect sheave.

  In addition, the knobs of each control lever should be sized so that the whole is not hidden even if the driver holds it with his hand, and the brake pedal is also sized so that the whole is not hidden even if the driver steps on it. Even if the driver is gripping the knob or stepping on the brake pedal, it can be visually observed, which makes it easier to confirm and improves safety. When a light emitting diode such as a red LED or a blue LED is used as the mode confirmation lamp, it is not necessary to use a colored transparent cover, and a colorless and transparent cover may be used, and the cover can be omitted. Further, the number of winch drums and sheaves is not limited to the present embodiment, and is arbitrary depending on the type and application of the pile driver.

  DESCRIPTION OF SYMBOLS 11 ... Pile driver, 12 ... Lower traveling body, 13 ... Upper turning body, 14 ... Leader, 15 ... Driver's cab, 16 ... Working device, 17 ... Gantry, 18 ... Pile, 19 ... Extension rod, 21 ... First wire Rope, 22 ... first winch drum (main drum), 23 ... second wire rope, 24 ... second winch drum (sub drum), 25 ... third wire rope, 26 ... third winch drum (third drum), 22a, 24a, 26a ... drum cover, 27a ... lower first guide sheave, 27b ... upper first guide sheave, 27c ... rear first top sheave, 27d ... fixed side first guide sheave block, 27e ... moving side first guide sheave block 28a ... first gantry sheave 28b ... lower second guide sheave 28c ... upper second guide sheave 28d ... rear second top sheave 2, e ... first side guide sheave 29a ... second gantry sheave 29b ... lower third guide sheave 29c ... upper third guide sheave 29d ... rear third top sheave 29e ... second side guide sheave 31 Operation stand, 32 ... Main drum operation lever, 33 ... Sub drum operation lever, 34 ... Third drum operation lever, 35 ... First winch mode confirmation lamp, 36 ... Second winch mode confirmation lamp, 37 ... Third winch mode confirmation lamp 38 ... Main drum brake pedal, 39 ... Sub drum brake pedal, 40 ... Third drum brake pedal

Claims (1)

An upper revolving unit having a plurality of winch drums, a plurality of sheaves each spanning a wire rope wound around each winch drum, and a driver's cab is rotatably mounted on the lower traveling body, In addition, in the construction machine in which the operation lever corresponding to each winch drum, the brake pedal, and the mode confirmation lamp for confirming the brake mode and the free fall mode are respectively arranged, the winch drums are colored in different colors, Corresponding to the winch drum, the construction machine characterized in that the sheave, the brake pedal, the operation lever, and the mode confirmation lamp have the same color.

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