KR20090022402A - Hull block edge clamp - Google Patents

Abstract

A clamp for tightening a hull block is provided to screw and unscrew a safety rail or a stepping plate easily and tightly by rotating a clamping member. A clamp for tightening a hull block comprises the following units. A support body is used for installing a safety rail or a stepping plate. A penetration hole(22a) is formed in a center of a bracket(22). A screw(23) is accommodated in the penetration hole. A clamping member(24) is rotatably installed in a side of the screw. The clamping member having an eccentric cam(24b) is rotated around a fixing axis(24a).

Description

Hull block clamp clamp {HULL BLOCK EDGE CLAMP}

1 and 2 is a view showing an example of a handrail strut is installed in a conventional hull block,

3 is a perspective view showing a hull block fastening clamp according to the present invention;

4 is a front configuration diagram showing an example in which the safety rail is installed using the clamp according to the present invention;

5 is a side configuration diagram of FIG. 4;

6a and 6b is a planar configuration diagram for explaining the operating state of the clamping member according to the present invention,

7A and 7B are plan configuration diagrams of principal parts showing other embodiments of the present invention.

* Description of the symbols for the main parts of the drawings *

10: prop stand main body 11: clamp

12a: U-shaped body 12b: fixing piece

13: clamping bolt 14: handrail

15: holding member 16: safety rail

20: clamp 21: prop base

22: bracket 22a: through hole

22b: non-slip piece 23: screw rod

23a: thread 24: clamping member

24a: fixed shaft 24b: eccentric cam

24c: lever 24d: thread

25: guide plate 25a: thread

26a: holding member 26b: taper pin

27a, 27b: safety rail 28: handrail

29a: flange 29b: support piece

29c: insertion hole 30: handlebar

The present invention relates to a clamp that is mainly used for the construction of safety rails or scaffolds for work when dividing the hull of a large ship into several block units. The present invention relates to a hull block fastening clamp for maintaining a tightening force by a rotation operation of a clamping member and a screw rod in a moved state.

In general, in the case of building a large vessel, a plurality of steel plates manufactured in various block forms are joined by welding to complete the basic form of the vessel, and then various vessels are installed in the hull manufactured at an early stage to manufacture the vessel. In order to protect workers from safety accidents such as falling down in the process, it is necessary to install various types of safety rails or to install work scaffolding in order to perform various operations such as welding or painting on a ship building.

The clamp fastened to the hull block is constructed by a conventional bolt fastening method and fixed to a railing part protruding horizontally or vertically of the hull block, and then a safety rail or a footrest for work is provided through a support provided in the clamp. It is common to hypothesize

As a related art, for example, through the U-shaped body 12a and the fixing piece 12b constituting the clamp 11 at the lower end of the main body 10, such as in Korean Utility Model Registration No. 313899 or 377767, etc. As the clamping bolt 13 is fastened, the clamp 11 is fixed to the railing 14 of the hull block, and the safety rail 16 is held by the holding member 15 disposed at regular intervals on the support base body 10. The construction of a temporary handrail for hull block works is disclosed.

In addition, the present applicant in the Utility Model Registration No. 2006-0032981 (filed Dec. 29, 2006) in connection with this technique, the screw rod assembled on the bracket of the clamp mounted on the railing of the hull block vertically moved The clamp for hull block fastening, which can be fixed at a slight rotation in the state and at the same time, can provide tightening force by the wedge member, so that the fastening and dismantling of the safety rail or working scaffold can be performed more easily. have.

However, if the safety rail is to be installed on the hull block using the method shown in the former publication, the work itself is required because the C-shaped body must be fitted to the end of the hull block first and the clamping bolt must be tightened by the operator. The work itself was rather cumbersome because it was quite cumbersome and time consuming, and in the latter case it was necessary to use a wedge member mounted separately on the bracket.

In addition, as the dust scattered due to various operations such as welding or painting of the hull block is accumulated and solidified in the binding part of the clamping bolt or the wedge member, the dismantling operation is not easy and, in severe cases, reuse after dismantling is almost impossible. It was a problem.

The present invention is to improve the problems as described above, the object of the present invention is to enable the fixing by the rotational operation of the clamping member and the screw rod in the state of moving the screw rod of the clamp mounted on the railing of the hull block downward. Accordingly, to provide a hull block fastening clamp configured to fasten and dismantle the safety rail or working scaffolding can be performed more smoothly and easily.

The present invention for achieving the object as described above, in the construction of a clamp fastened to the railing of the hull block, including a support body for installing a safety rail or scaffold for work, through-holes are formed in the center of the upper bracket It accommodates the screw rod, one side of the screw rod is characterized in that the clamping member having an eccentric cam is installed to be rotatable about the fixed shaft is configured to maintain the tightening force of the screw rod.

Here, the clamping member is composed of an eccentric cam with a screw thread formed on the outer circumferential surface and a lever attached to one side of the eccentric cam, and the screw threads respectively formed on the eccentric cam and the screw rod are engaged with each other when the lever is rotated. One side of the bracket is equipped with a guide plate is configured to support the screw rod.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, Figures 3 to 7 are views for explaining the hull block fastening clamp according to the present invention, as shown in these drawings, the components for constituting the clamp 20 of the present invention is a holding post main body 21 Bracket 22 mounted on the lower end of the head), a screw rod 23 assembled on the upper end of the bracket 22, a clamping member 24 and a guide plate (installed on one side of the screw rod 23). 25).

The support post main body 21 is manufactured using a common square pipe or H-shaped steel, and the safety rails 27a and 27b are formed by holding members 26a and taper pins 26b attached to one side thereof. As it is comprised so that it can be fixed, it becomes possible to fix and install the normal support stand (illustration omitted) etc. which a working scaffold is mounted as needed.

In addition, the bracket 22 has a U-shape to be fitted to the handrail 28 of the hull block, a through-hole 22a is formed in the center of the upper end of the bracket 22 to form a screw rod 23 It can be accommodated freely, and the normal slipper piece 22b is attached to the upper surface of the lower bracket 22. As shown in FIG.

Ordinary triangular or quadrangular threads 23a are formed on the outer circumferential surface of the screw rod 23, and cylindrical flanges 29a and support pieces 29b are mounted on the upper and lower portions thereof, and the flanges 31a are provided. ) Is formed so that the insertion hole (29c) intersecting with each other to insert the handle bar (30) to fasten the screw rod (23).

In addition, the upper end surface of the bracket 22 is mounted with a guide plate 25 having a shape in which a normal nut is cut in half at one front portion of the screw rod 23, and is opposed to the guide plate 25. The clamping member 24 which rotates about the fixed shaft 30 is mounted in the position.

The clamping member 24 is composed of an eccentric cam 24b which is assembled and rotated by a fixed shaft 24a and a lever 24c which is integrally installed on the eccentric cam 24b, and on the outer circumferential surface of the eccentric cam 24b. A thread 24d is formed so that the tightening force of the screw rod 23 can be maintained as it is during the rotation operation of the clamping member 24.

Meanwhile, as shown in FIGS. 7A and 7B, the clamping member 24 and the guide plate 25 are mounted on the bottom surface of the upper bracket 22 with the screw rods 23 therebetween, or only one of them on the bottom surface. When the thread 25a is formed on the inner surface of the guide plate 25, the fastening force of the screw rod 23 can be maintained more strongly.

The present invention constructed as described above, the screw rod (with the U-shaped bracket 22 attached to the holding body main body 21 as shown in Figs. 4 and 5 in the handrail 28 of the hull block ( When the 23 is pushed down, the screw rod 23 can be brought into contact with the upper surface of the handrail 28 while moving downward quickly through the through hole 22a at the top of the bracket 22.

In this state, as shown in FIGS. 6A and 6B, when the lever 24c constituting the clamping member 24 is pulled counterclockwise, the eccentric cam 24b is rotated about the fixed shaft 24a and is eccentric. As the thread 24d formed on the cam 24b is engaged with the thread 23a of the threaded rod 23, the threaded rod 23 can be fixed, and the screwed rod 23 is a bracket It keeps in close contact with the guide plate 25 mounted in the front part of (22).

Thereafter, the handle bar 30 is inserted into the insertion hole 29c of the flange 29a formed on the upper part of the screw rod 23 and the screw rod 23 is slightly rotated. ), And the clamping member 20 adjacent to each other at regular intervals may be fastened to the handrail 28 of the hull block, and then the holding member 26a installed in the support base body 21. And by using the tapered pin (26b) to install the safety rails (27a, 27b) or to bind the support or the like is installed scaffolding for work.

When the clamp 20 is to be dismantled from the handrail 28 of the hull block, the lever 24c of the clamping member 24 is pushed in the clockwise direction so that the eccentric cam 24b and the screw rod 23 Since the engagement by the threads 24d and 23a is released, the clamp 20 can be easily dismantled from the handrail 28 of the hull block.

7A and 7B, the clamping member 24 and the guide plate 25 may be mounted on the bottom surface of the upper bracket 22 with the screw rod 23 interposed therebetween. The same function can be performed, and only one of the clamping member 24 and the guide plate 25 can be configured on the bottom surface.

In addition, when the thread 25a is formed in the groove portion of the guide plate 25, the fastening force of the screw rod 23 by the operation of the clamping member 24 can be maintained more strongly.

The above-described embodiment is described with respect to the most preferred example of the present invention, and is not limited only to the above embodiment, of course, various modifications are possible without departing from the technical spirit of the present invention.

As described above, according to the hull block fastening clamp according to the present invention, the screw rod assembled in the through-hole of the bracket is moved downward by only rotating the lever and the screw rod of the clamping member in the state fixed to the rail of the hull block Since the clamp can be firmly fixed, fastening and dismantling of safety rails or scaffolds installed on the hull block can be performed more quickly and easily.

Claims (3)

In constructing a clamp fastened to the railing of the hull block, including a support body for installing a safety rail or working footrest, A through hole 22a is formed in the center of the upper bracket 22 to accommodate the screw rod 23, and one side of the screw rod 23 has a clamping member 24 having an eccentric cam 24b. 24a) is installed to be rotatable around the hull block fastening clamp, characterized in that configured to maintain the tightening force of the screw rod (23). 2. The clamping member (24) according to claim 1, wherein the clamping member (24) comprises an eccentric cam (24b) having a thread (24d) formed on an outer circumferential surface thereof, and a lever (24c) attached to one side of the eccentric cam (24b). Clamp for hull block fastening, characterized in that the threads (24d, 23a) formed on the eccentric cam (24b) and the screw rod (23) are engaged with each other at the time of rotation. The clamp for hull block fastening according to claim 1 or 2, wherein a guide plate (25) is mounted on one side of the bracket (22) to support the screw rod (23).

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