JP3102942U - Aluminum alloy clamp installation tool with rubber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a tool which can be quickly attached to a rubber-made aluminum alloy clamp often used in an aircraft without using manual force.
[Solution]
This tool is composed of a screwed plate (B) into which a hole alignment screw (A) is screwed and a screwless plate (C) which are combined with the tip of a small vice plier (D) by welding or the like. The hole of the clamp mounting bolt / screw (3) of the aluminum alloy clamp (E) with rubber to be mounted is generally aligned with the hole of the mating side to which the clamp is to be mounted. Insert the tip into the hole in the clamp. After locking the pliers, remove the alignment screw from the threaded plate, insert the bolt / screw into the hole, and hook the nut (4). Unlock the pliers, pull the tool away from the clamp, and tighten the nut with a normal tool. This tool can easily counter the spring back of the clamp.
[Selection diagram] Fig. 1

Description

  The present invention relates to a tool for attaching an aluminum alloy clamp with rubber (E), which is widely used in aircraft, to an airframe structural member (F) or another aluminum alloy clamp with rubber (E).

  Before mounting the aluminum alloy clamp with rubber (E), both ends are opened by spring back as shown in FIG. To attach the rubberized aluminum alloy clamp (E) with the clamp mounting bolt / screw (3) and the nut (4), it is necessary to close both ends of the clamp until the nut (4) is engaged. Closing by hand is possible, but requires considerable force.

  Also, it is necessary to match the holes of the clamp mounting bolt / screw (3) at both ends of the clamp. The holes often do not fit when the ends of the clamp are closed. It is difficult work to put the nut (4) on the clamp mounting bolt / screw (3).

  Conventionally, no special tool for this type of work has been found. It is considered that the portion related to the tool is a portion where the both ends of the aluminum alloy clamp (E) with rubber are open with the pliers.

  The usual procedure for mounting the aluminum alloy clamp with rubber (E) is as follows. One end of the clamp is passed through a clamp mounting bolt / screw (3), and the head is pressed with one hand and the other hand is used to hold the clamp. It is common to close both ends of the aluminum alloy clamp with rubber (E) and apply a nut (4) against springback while holding down the mating side to which the aluminum alloy with rubber clamp (E) is attached. .

  To prevent springback, pliers may be used. In such a case, the thickness of the tip of the pliers makes it difficult to apply the nut (4) to the clamp mounting bolt / screw (3). Wrap both ends of the aluminum alloy clamp with rubber (E) with a wire so that it does not open, then remove the pliers and put a nut (4) on the clamp mounting bolt / screw (3). There are many.

  As described in the background art, the mounting of the rubberized aluminum alloy clamp (E) usually requires a considerable amount of force because a method of manually resisting springback is employed.

  In addition, when both ends of the aluminum alloy clamp with rubber (E) are closed, holes of the clamp mounting bolt / screw (3) are often shifted, and it is difficult to pass the clamp mounting bolt / screw (3).

  The present invention has been made in view of the above-mentioned problems of the background art, and has as its object to align the holes of the clamp mounting bolt / screw (3) without requiring a large force. It is an object of the present invention to provide a tool which is capable of mounting the aluminum alloy clamp (E) with rubber as a result.

  In order to achieve the above object, the aluminum alloy clamp with rubber (E) mounting tool of the present invention has a slit (J) with a width slightly larger than the outer diameter (M) of the clamp mounting bolt / screw (3), A threaded plate (B) having a screw having a diameter (K) slightly larger than its width (J); and a screw having a diameter (L) engaging with the screw of the threaded plate (B). Of the screw (A), the tip of which is approximately the same diameter (H) as the clamp mounting bolt / screw (3) and whose tip is tapered, and slightly smaller than the outer diameter (M) of the clamp mounting bolt / screw (3) It is composed of a screwless plate (C) having a slit of a large width (J) and a small vice plier (D). The screwed plate (B) and the screwless plate (C) are connected to a small vice ply. Is obtained by combined by welding or the like to the distal end portion of the over (D).

  A description will be given by taking as an example the connection between aluminum alloy clamps (E) with rubber. First, the holes through which the clamp mounting bolts / screws (3) of the two aluminum alloy clamps with rubber (E) pass are roughly aligned, and a small vice pliers ( D) Grasp the handle (2) and lock it between the threaded plate (B) and the screwless plate (C). This eliminates the need to press by hand, and because the tip of the hole alignment screw (A) is substantially the same diameter (H) as the outer diameter (M) of the clamp mounting bolt / screw (3), The holes through which the screws (3) pass will fit.

  With the small vice pliers (D) locked, the screws are removed from the threaded plate (B) by loosening the screws (A).

  In this state, the clamp mounting bolt / screw (3) is passed through the hole, and the nut (4) is hooked. Then, the lock of the small vice pliers (D) is released, and the slit width (J) of the screwed plate (B) and the screwless plate (C) is adjusted to the outer diameter (M) of the clamp mounting bolt / screw (3). ), The tool of the present invention is separated from the aluminum alloy clamp with rubber (E). Then simply tighten the nut (4) with a normal wrench. Thus, the tool of the present invention is effective for the work of attaching the aluminum alloy clamp (E) with rubber.

Best conditions for implementing the invention

  Even if the thickness of the mating part to which the aluminum alloy clamp with rubber (E) is attached changes, it is desirable that the parallelism between the two plates does not change as much as possible when sandwiched between the threaded plate (B) and the screwless plate (C). When welding both plates to the small vice pliers (D), it is desirable to assume that two or three aluminum alloy clamps (E) with rubber are joined.

  The thread diameter (K) of the threaded plate (B) must be somewhat larger than the width (J) of the slit to form a thread.

  The tip of the hole alignment screw (A) needs to be tapered in order to facilitate alignment of the holes. It is also desirable that the head has a shape that can be turned by hand.

  Since work is often performed in a narrow place, it is desirable to make the small vice pliers (D) as small as possible.

  Aluminum alloy clamps with rubber (E), which are widely used in aircraft, have the same hole diameter of the clamp mounting bolt / screw (3) even if the inner diameter (N) is different. In the case of an inch type aircraft, the hole diameter is about 5.1 mm. The outer shape of the clamp mounting bolt / screw (3) is about 4.7 mm.

  Let's talk about the prototype. The plate with thread (B) and the plate without thread (C) are made of 3mm thick steel. The slit width (J) of both plates was slightly larger than the outer shape (M) of the clamp mounting bolt / screw (3), and was 5.0 mm. The thread diameter (K) of the threaded plate (B) was 6 mm.

  A hexagon socket head cap screw having a screw diameter (L) of 6 mm and a length of 35 mm was used as the hole adjusting screw (A). The tip of the hexagon socket head bolt, about 15 mm, is slightly larger than the outer shape (M) of the clamp mounting bolt / screw (3) and (H) is 5.0 mm, and the tip is tapered to facilitate alignment of the holes. processed.

  The spacer (2) is for adjusting the end of the thread portion of the hole adjusting screw (A) to the lower surface of the threaded plate (B), and is adhered to a hexagon socket head bolt.

  Attach the hole adjusting screw (A) to the threaded plate (B), and connect the threaded plate (B) and the plate without threaded (C) between the two plates with the thickness of both ends of the aluminum alloy clamp with rubber (E). In a state where an object of about twice the size was inserted, the object was sandwiched between the tips of small vice pliers (D) and welded.

  It is a front view and a block diagram of an aluminum alloy clamp installation tool with rubber.   It is the front view and top view of the aluminum alloy clamp with rubber.   It is explanatory drawing which shows the state before attachment of the aluminum alloy clamp with rubber.

Explanation of reference numerals

A Hole adjusting screw B Screwed plate C Screwless plate D Small vice pliers E Aluminum alloy clamp with rubber F Body structure member G Wiring, piping, etc. H Hole diameter of threaded screw thread J J Plate with threaded and screwless plate Width K Screw diameter of threaded plate L Screw diameter of hole alignment screw M Outer diameter of clamp mounting bolt / screw N Inner diameter of aluminum alloy clamp with rubber 1 Spacer 2 Vice pliers handle 3 Clamp mounting bolt / screw 4 Nut 5 Rubber part 6 Aluminum alloy part

Claims (1)

  An aluminum alloy clamp with rubber (E) often used in aircraft is attached to a fuselage structural member (F) or another aluminum alloy clamp with rubber (E) using a clamp mounting bolt / screw (3) and a nut (4). A tool used for joining, having a slit having a width (J) slightly larger than the outer diameter (M) of the clamp mounting bolt / screw (3) and having a diameter (K) slightly larger than the width (J). It has a threaded plate (B) having a thread and a thread of a diameter (L) that engages with the thread of the threaded plate (B), the tip of which is the outer diameter of the clamp mounting bolt / screw (3). A hole alignment screw (A) having a tapered tip with a diameter (H) substantially equal to (M) and a slit (J) with a width (J) slightly larger than the outer diameter (M) of the clamp mounting bolt / screw (3). Have A screwless plate (C) and a small vice plier (D). The screwed plate (B) and the screwless plate (C) are combined with the tip of the small vice plier (D) by welding or the like. Tools.

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