JP2007144574A - Nut temporary tightening tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nut temporary tightening tool capable of performing temporary tightening of a nut with a sufficient workability even at high altitude. <P>SOLUTION: The nut temporary tightening tool comprises a base plate 1 formed in a strip shape, and an elastomer 2 mounted on the base plate 1, wherein the base part of the base plate 1 is attached to the tip of an indirect live wire operation rod 5. The elastomer 2 has a press-contact surface 2a brought into press contact with the outer peripheral surface of the nut 3 so as to temporarily tighten the nut 3, with the tip of the base plate 1 together with the elastomer 2 shaped in a curve with the elastomer 2 inside, and the press-contact surface 2a of the elastomer 2 shaped in a waveform in the sliding direction of the base plate 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a temporary tightening tool for a nut, for example, a temporary tightening tool for indirect hot wire operation for temporarily tightening a nut when a bird damage prevention tool is attached to a metal arm or the like of a utility pole.

  Temporary nut tightening work that has been done on the ground has been performed manually. Conventionally, it is easy to perform temporary tightening regardless of the working conditions, because the work efficiency is likely to decrease in places with severe working conditions. The bolt temporary fastener for making it do is proposed (for example, refer patent document 1). In this bolt temporary fastener, a nut, a spring washer, and a flat washer are fitted into a cylindrical body formed inside a regular hexagon, and the cylindrical body is inserted into the bolt from the axial direction to rotate the cylindrical body temporarily. It is a thing.

  On the other hand, fastening of nuts in high-voltage distribution lines arranged at high places is performed by remote work (indirect hot line work) with an insulating rod for safety, but the installation form of high-voltage distribution lines varies depending on the site. Therefore, the direction of access to the bolts also varies from directly below, from the side, or from diagonally. Therefore, the above-mentioned temporary bolts for ground use that restrict the access direction as described above cannot be used, and usually an indirect ratchet (in which a ratchet is attached to the tip of an indirect live wire operation rod) has been used. .

Registered Utility Model No. 3048572

  However, at the stage of temporary tightening of the nut with an indirect ratchet, the clutch function of the ratchet cannot be used, and the operator must grip the base of the long operating rod and turn it many times, which makes the rotation operation very cumbersome. And very inefficient. For example, when attaching the bird damage prevention tool to the arm of the utility pole, the nut has to be turned about 20 times in the temporary tightening stage, which requires a great deal of labor and time. When the temporary tightening operation is completed, the final tightening (additional tightening) can be performed by swinging the operating rod using the clutch function of the ratchet.

  This invention is made | formed in view of such a situation, and it aims at providing the nut temporary fastener which can perform the nut tightening with sufficient workability | operativity in high places.

(1) A nut temporary fastener according to the present invention includes a base plate 1 formed in a strip shape and having a base attached to the tip of an indirect hot wire operating rod 5 and an elastic body 2 attached to the base plate 1. Thus, on one side surface of the elastic body 2, a pressing surface 2a that is brought into contact with the outer peripheral surface of the nut 3 in a pressing state for temporarily fastening the nut 3 is formed.

  According to such a configuration, the operator operates the indirect hot wire operation rod 5 to which the base plate 1 is attached, while bringing the pressing surface 2a of the elastic body 2 into contact with the outer peripheral surface of the nut 3 in a pressed state. When the base plate 1 is slid, a rotational force can be applied to the nut 3, thereby enabling temporary tightening. In this case, an operation of swinging the indirect hot wire operation rod 5 may be performed, and the operation becomes much easier than the conventional rotation operation, and the nut 3 can be temporarily tightened with high workability even at high places. it can.

(2) The tip of the base plate 1 may be formed in a curved shape with the elastic body 2 inside. Thus, by curving the tip of the base plate 1 inward, access to the nut 3 is easy (reliable). Further, when the nut 3 comes to the curved portion, the resistance increases and the tightening effect increases, and a clear response is felt so that the tip (the end of the slide) can be recognized with certainty, preventing inadvertent detachment. You can also.

(3) The pressing surface 2 a of the elastic body 2 may be formed in a wave shape in the sliding direction of the base plate 1. In this way, since a large resistance can be given to the nut 3, a reliable rotational force can be given to the nut 3.

(4) A detachment prevention wall 1 a that is in sliding contact with the side surface of the nut 3 may be formed at the longitudinal side edge of the base plate 1. In this way, the base plate 1 is unlikely to be detached from the nut 3, so that the operability is stably improved.

(5) The base plate 1 may be attached to the tip of the indirect live wire operation rod 5 via an angle adjusting means 4 for adjusting the angle. In this way, the angle of the base plate 1 can be adjusted according to the work conditions, so that access from an appropriate direction is possible, and workability and operability are further improved.

  The nut temporary fastener of the present invention temporarily tightens the nut by sliding the base plate while bringing the elastic body attached to the base plate attached to the indirect hot wire operation rod into contact with the outer peripheral surface of the nut in a pressed state. Therefore, it is sufficient to perform an operation of swinging the indirect live line operation rod, and the operation becomes much easier than the conventional rotation operation, and the workability is improved.

The nut temporary fastener according to the best embodiment of the present invention will be described below in detail with reference to the drawings.
FIG. 1 shows a nut temporary fastener T, (a) is a front view, and (b) is a cross-sectional view taken along line BB in (a). 2 and 3 are explanatory diagrams of the temporary fastening operation. In these drawings, reference numeral 1 denotes a base plate made of a sheet metal material formed in a band plate shape, the base portion of which is attached to an indirect hot wire operation rod 5 (see FIG. 2) so that the angle can be adjusted, and slides in the longitudinal direction. Operated. Reference numeral 2 denotes an elastic body attached to the base plate 1 with an adhesive or the like, which is made of, for example, foam rubber, and a pressing surface 2a that is in contact with the outer peripheral surface of the nut 3 is formed on one side surface thereof. The pressing surface 2a is formed in a wave shape in the sliding direction. 4 is a Kikuza adapter as an angle adjusting means for connecting the base portion of the base plate 1 to the indirect live wire operation rod 5 so that the angle can be adjusted. The movable portion 4a fixed to the base portion of the base plate 1 and the indirect live wire operation rod The fixed portion 4b fixed to 5 has an oppositely mounted chrysanthemum, and the movable portion 4a and the fixed portion 4b are fastened by a wing nut 4c so that the angle can be adjusted.

  According to the nut temporary fastener T having such a configuration, the operator operates the indirect hot wire operating rod 5 to which the base plate 1 is attached to bring the elastic body 2 into contact with the outer peripheral surface of the nut 3 in a pressed state. On the other hand, if the base plate 1 is slid in a direction perpendicular to the bolt axis, the nut 3 can be reliably applied with a rotational force, thereby enabling temporary tightening. In this case, the operation of swinging the indirect hot wire operation rod 5 is much easier than the conventional rotation operation, and therefore, the nut can be temporarily tightened with high workability even at high places.

  Then, by curving the tip of the base plate 1 with the elastic body 2 inside, access to the nut 3 is easy (reliable). That is, the relative position with respect to the nut 3 can be clearly grasped by bringing the curved portion of the elastic body 2 into contact with the nut 3 so that the temporary fastening operation can be started from an appropriate position.

  If the base plate 1 is started to slide in the direction in which the nut 3 is made to correspond to the base side (base side of the base plate 1) of the elastic body 2 and the nut 3 is pulled into the curved portion, the temporary pressing operation is a wave-shaped pressing surface. Temporary tightening can be performed by reliably rotating the nut 3 in the screwing direction by the frictional resistance received from 2a. When the nut 3 comes to the curved portion of the pressing surface 2a of the elastic body 2, the resistance increases and the tightening effect increases and the response is felt, so that the tip (end of the slide) can be clearly recognized. It can also prevent inadvertent detachment.

  In addition, since the base plate 1 is attached to the tip of the indirect live-line operating rod 5 via the adapter for adjusting the angle, the angle of the base plate 1 can be adjusted according to the working conditions. Access from the direction becomes possible, and workability and operability are further improved.

  FIG. 2 is an explanatory view of a temporary tightening operation when the tree-shaped bird harm prevention tool 7 is attached to the arm 6 of the utility pole. In this case, the movable part 4a of the scorpio adapter 4 is perpendicular to the fixed part 4b. The base plate 1 and the elastic body 2 are oriented in the horizontal direction (perpendicular to the indirect live wire operation rod 5). In this state, the pressing surface 2a of the elastic body 2 is brought into contact with the outer peripheral surface of the nut 3 screwed to the lower end of the support bolt 7a of the bird harm prevention tool 7, and the base plate 1 is slid in the left direction in the figure. The nut 3 can be screwed by this operation, and when it is rotated about 20 times, the temporary tightening operation is completed. After that, the final tightening (retightening) may be performed by an indirect ratchet or the like. The first screwing operation of the nut 3 may be performed, for example, by temporarily attaching the nut 3 to an indirect ratchet, an indirect hot wire operating rod or the like with an adhesive tape or the like.

  FIG. 3 is an explanatory view of removing the nut 3 fastened to the bolt penetrating the arm pole 6 of the utility pole in the horizontal direction. In this case, the movable part 4a of the Kikuza adapter 4 corresponds to the same direction as the fixed part 4b. The base plate 1 is fixed in the direction along the indirect hot wire operating rod 5 by fixing with the wing nut 4c. In this state, the nut 3 can be screwed out by causing the pressing surface 2a of the elastic body 2 to come into contact with the outer peripheral surface of the nut 3 in a pressed state and sliding the base plate 1 downward in the figure. When the nut 3 is screwed, the nut temporary fastener T may be disposed on the right side of the nut 3 and the base plate 1 may be slid downward in the figure. Thus, this nut temporary fastener T can perform both the temporary tightening and removal of the nut 3.

  4 (a) and 4 (b) show another embodiment. In this case, the previous embodiment is that a separation preventing wall 1a slidably contacting the side surface of the nut 3 is formed on the side edge of the base plate 1 in the longitudinal direction. The form is different. The detachment prevention wall 1a is formed by bending one side edge of the straight portion of the base plate 1 at a right angle. In this way, when the nut temporary fastening tool T is operated, if the sliding prevention wall 1a is slidably contacted to the side surface of the nut 3, the base plate 1 becomes difficult to come off from the nut 3, so that the operability is stably improved. To do.

  It should be noted that the present invention is not limited to the embodiment, and it is free to make design changes, improvements, etc. as necessary without departing from the spirit of the invention. For example, the base plate is straight. May be formed. Elastic bodies may be attached to both sides of the base plate. The pressing surface of the elastic body may be flat. The pressing surface of the elastic body may be formed into a rough surface. The base plate may be connected to the indirect hot-wire operation bar in a fixed angle state without using a star-shaped adapter.

The nut temporary fastener which concerns on embodiment of this invention is shown, (a) is a front view, (b) is a BB arrow directional cross-sectional equivalent view of (a). It is explanatory drawing of the use condition which attached the nut temporary fastener to the indirect hot wire operation rod at right angle. It is explanatory drawing of the use condition which attached the nut temporary fastener in the direction along an indirect hot wire operation stick | rod. The nut temporary fastener which concerns on the same another embodiment is shown, (a) is a front view, (b) is a CC equivalent cross-sectional view of (a).

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Base plate, 1a ... Detachment prevention wall, 2 ... Elastic body, 2a ... Pressing surface, 3 ... Nut, 4 ... Angle adjustment means, 5 ... Indirect hot wire operation rod

Claims (5)

  A base plate (1) formed in a strip shape and having a base attached to the tip of an indirect live wire operation rod (5), and an elastic body (2) attached to the base plate (1). On one side of the body (2), there is formed a pressing surface (2a) that comes into contact with the outer peripheral surface of the nut (3) in a pressing state in order to temporarily tighten the nut (3). Nut temporary fastener.   The nut temporary fastener according to claim 1, wherein a tip portion of the base plate (1) is formed in a curved shape with the elastic body (2) inside.   3. The nut temporary fastener according to claim 1, wherein the pressing surface (2 a) of the elastic body (2) is formed in a wave shape in the sliding direction of the base plate (1).   The nut according to any one of claims 1 to 3, wherein a detachment prevention wall (1a) slidably contacting a side surface of the nut (3) is formed at a longitudinal side edge of the base plate (1). Temporary fastener.   The said base plate (1) is attached to the front-end | tip of the said indirect live-line operation stick | rod (5) via the angle adjustment means (4) for adjusting an angle, In any one of Claim 1 thru | or 4 characterized by the above-mentioned. Nut temporary fastener described.

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