JPS62113688A - Wedge fastener for launching block - Google Patents

Abstract

PURPOSE:To relieve a labour burden, by a method wherein a movable bed seat is placed to the top part of a table lifter, and an expandable arm is attached to the bed seat. CONSTITUTION:When wedge fastening takes place, a wedge fastener is caused to self-run and is stopped in the front of a wedge 20. In which case, a side brake 9 in first pulled to bring the wedge fastener into a fixed state. Secondly, through movement of the lever of a manually-operated pump 4, a table lift 1 is raised, and the height of a wedge fastening hammer 13 is adjusted to that of the wedge 20. Thereafter, an expandable arm 14 is pulled out to insert coupling insertion pins 15 and 16, and with an air cylinder 12 operated, the hammer surface of the wedge fastenin hammer 13 is forced into contact with the wedge 20. An arm rotary lever 18 is forced to fall down, and after an L-shaped metal 17 is caused to embrace the tip of a launching block 21, hammering by the wedge fastening hammer 13 is started. After comppletion of hammering, the wedge fastener is returned to its original state by reversing the precedures, and is moved to a subsequent wedge.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] Launching pieces are installed at dozens to hundreds of locations in order to support the weight of a ship before launching on a tilting platform. A locking arrow is built into this launching piece, and each locking arrow is struck with amplitude to equalize the load applied to each piece.

The present invention relates to an improvement of an arrow tightening machine for launching pieces used for such arrow tightening.

[Conventional technology]

Conventional arrow tightening machines for launching pieces have been used, for example, in which a wheeled pedestal is attached to the top of a table lifter, and an arrow hammer unit is mounted and incorporated thereon. The method for using it was as follows. That is, first, the table lifter is moved to the position of the arrow to be struck, and then the height of the lifter is adjusted so that the arrow tightening hammer and the arrow are approximately horizontal. Next, manually push the hammer until it touches the arrow and wrap Che 7 around the launch piece. Then, attach the cheno to the hook at the end of the device and start hitting.

After the arrow, remove the chino and pull part of the hammer toward you. After completing the above operations, the table lifter was moved to the next arrow and this process was repeated.

[Problem that the invention seeks to solve]

The chain 7 is used to prevent the piece from moving due to impact when hitting and to prevent the equipment itself from falling over. When the chain is installed, at least 5 workers, 2 on the chain winding side and 3 on the machine side, are required. It was necessary. These tasks were hard labor, and because they were carried out during the busy period before the ship was launched, there was a problem in that it was not possible to allocate personnel to other tasks.

[Failure to solve the problem]

The present invention provides an arrow tightening machine for launching pieces that solves these problems.A movable pedestal is provided at the top of the table lifter, a telescoping arm is attached to this pedestal, and an arrow tightening machine equipped with a positioning tool is provided. It is characterized in that a line mark is provided parallel to the arm.

The telescopic arm holds the launching piece and may be provided on one side of the launching piece, but it can also be provided on both sides if necessary.

The positioning tool is used to adjust the distance between the arrow and the arrow mark. A mechanism for finely adjusting the vertical or horizontal position of the arrow mark can be separately provided.

[Effect]

The horizontal position of the arrow hammer with respect to the arrow is adjusted by the stop position of the table lifter, and the vertical position is adjusted by the lifter. Then, the positioning tool is used to move the pedestal back and forth to adjust the arrow and arrow mark problems. The telescoping arm holds the launching piece and prevents it from moving forward and moving in the left and right directions due to the impact of the arrow hammer's blow.

〔Example〕

FIG. 1 is a side view of an arrow tightening machine which is an embodiment of the present invention, and FIG. 2 is a plan view.

A hydraulic cylinder (built in at position 3) is provided in the bending part 2 of the table lifter 1, and the lifter 1 is raised by operating the hydraulic cylinder with a manual pump 4 shown in FIG. It is designed to let you do so. A motor 5 with a speed reducer and wheels 6, 7 for self-propulsion are provided at the bottom.

A lock type brake is attached to one wheel 6, and a brake pedal 8 and a side brake lever 9 are provided therefor.

A pedestal 10 is placed on the top of the table lifter 1. Four wheels 11 are attached to the bottom of this pedestal 10 so that it can move in the direction of arrow 20. An air cylinder 12 is attached to the center and slightly rear part of the top of the table lifter, and the base 10 is moved forward and backward by this cylinder 12.

The center front part of the pedestal 10 is equipped with an arrow tightener 13. A commercially available product is used for this marker 13.

A telescopic arm 14 is attached to one side of the base 10. This telescopic arm 14 is configured to be fixed in length by inserting connecting insertion pins t5 and 16 after being extended, but it is also possible to make it extendable and retractable automatically. In addition, an L-shaped metal fitting 1 holding a launching piece 21 is provided at the tip.
7 is attached, and the telescopic arm 14 itself can rotate. By tilting the arm rotation lever 18, the L-shaped metal fitting 17 can be brought down to the launching piece 21 side and held. Moreover, this telescoping arm 14 rotates upward by about 5 degrees about the base, and the launching piece 21
The height of the holding position can be adjusted.

An example of the state in which the launching piece 21 supports the bottom 22 is shown in the third example.
As shown in the figure. A track plate 24 is fixed on a fixed base 23, and a slide plate 26 and a liner 2 are mounted on it via a launching beer 25.
7 and upper mounting table 28. An arrow 20 and a launching piece 21 are placed on top of it.

When arrowing, the arrow tightening machine is first moved by itself and stopped in front of the arrow 20. Then, pull the handbrake lever 9 to prevent the bolt from moving. Next, the lever of the manual bong f4 is moved to raise the table lift 1, and the height of the arrow hammer 13 is adjusted to the arrow 20. Then pull out the telescopic arm 14 and connect the connecting insertion pins 15 and 16.
, and operate the air cylinder 12 to bring the hammer surface of the arrow hammer 13 into contact with the arrow 20. After the arm rotation lever 18 is pushed down and the L-shaped metal fitting 17 holds the tip of the launching piece 21, the hitting by the arrow-shaped hammer 13 is started. After striking, repeat the above steps in reverse to return the arrow tightener to its original state and move on to the next arrow.

[Effects of the Invention] By adopting the arrow tightening machine of the present invention, it is now possible to use two workers and perform normal work, whereas the conventional method required five workers and required heavy labor. As a result, it was possible to reduce the labor burden and redeploy surplus personnel to other tasks.

[Brief explanation of drawings]

FIG. 1 is a side view of an arrow tightening machine which is an embodiment of the present invention, and FIG. 2 is a plan view. FIG. 3 is a side view illustrating how the arrow tightening machine is used. 1... table lifter, lO... pedestal, 12...
・Air cylinder (positioning tool), 13...Arrow tightening・
・Nmar, 14...Extendable arm. Patent applicant Nippon Kokan Co., Ltd. Representative Patent Attorney 1) Hiroshi Naka Masa 3rs

Claims (1)

[Claims] An arrow tightening machine for launching pieces, which includes a movable pedestal provided at the top of the table lifter, a telescopic arm attached to this pedestal, and an arrow tightening hammer equipped with a positioning tool installed parallel to the arm.