JP5330890B2 - Fastener operation tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastener operation tool engageable with a fastener without removing other apparatus components around the fastener even when a space around the fastener is relatively narrow. <P>SOLUTION: The fastener operation tool 18 that engages with a nut 2 or the like to apply turning force and carries out the fastening or separation of the nut 2 or the like, has a width dimension 4 equal to or less than the maximum outer diameter 3 of the nut 2 or the like, and is equipped with: a turning force applying part 5 which applies the turning force to the nut 2 or the like; and an operation part 7 extended from the turning force applying part 5 and transmitting the turning force to the turning force applying part 5 according to turning operation. The turning force applying part 5 has a plurality of almost V shaped grooves 5b formed at the almost same angle as each of a plurality of corner parts 2a forming the outer circumferential edge of the nut 2 or the like. The turning force applying part 5 has one groove 5a formed at the almost same angle as that of the almost V shaped groove 5b at a front end 8 facing these almost V shaped grooves 5b. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a fastener operating tool that engages with a fastener composed of a bolt or a nut to apply a rotational force to perform fastening or detaching operation of the fastener.

  As a conventional fastener operating tool used for fastening or detaching fasteners of bolts and nuts, for example, there is a spanner. This spanner is composed of a head that can be fitted and removed from the side of the fastener, and a grip that is connected to the head, and is fitted with the head from the side of the fastener. By rotating in the direction, the fastening operation of the fastener is performed.

  By the way, there are cases where an operating tool such as a spanner cannot be engaged with the fastener due to an obstacle around the fastener. Assuming such a case, a spanner is known that rotates after being fitted from the outer peripheral side of the fastener (see Patent Document 1). In addition, although the spanner described in this patent document 1 may fit from the outer peripheral piece side of a fastener, there exists a possibility that a fastener may fall. A spanner provided with a fitting bottom in which a bolt insertion hole is formed in a possible head is also known (see Patent Document 2).

Japanese Utility Model Publication No. 61-112865 Japanese Utility Model Publication No. 52-065399

  In the prior art shown in Patent Documents 1 and 2, the fitting part of the spanner is formed in a size larger than the outer shape of the fastener and has a shape protruding from the outer periphery of the fastener. When the periphery of the tool is a narrow space, the fitting part of the spanner may interfere with other equipment components around the fastener and the spanner may not be engaged with the fastener. In such a case, in order to enable engagement of the fitting portion of the spanner with the fastener, and in order to secure a space that allows the spanner to rotate, other device configurations around the fastener Parts need to be removed. That is, the fastener for other than the original object must be detached and fastened, and it takes time for the fastening / detaching operation, resulting in a problem that the operation efficiency is lowered.

  The present invention has been made from the above-described state of the art, and its purpose is to provide a fastener without removing other equipment components around the fastener even when the space around the fastener is relatively narrow. It is providing the fastener operating tool which can be engaged.

In order to achieve the above object, a fastener operating tool according to the present invention is a fastener operating tool that engages with a fastener made of a bolt or a nut to give a turning force and performs a fastening or detaching operation of the fastener. And having a width dimension equal to or smaller than the maximum outer diameter dimension of the fastener, and applying a rotational force applying part for applying a rotational force to the fastener, and extending from the rotational power applying part and performing a rotation operation. An operation portion for transmitting the turning force to the turning force applying portion, and the turning force applying portion is substantially the same as each of the plurality of corner portions forming the outer peripheral edge of the fastener on the side where the operating portion is provided. It has a substantially V-shaped groove portion formed at the same angle, has a tip portion facing the substantially V-shaped groove portion, and is formed on both sides formed by connecting the tip portion and the substantially V-shaped groove portion. The angle formed is an acute angle or the fastener is engaged. The tip portion is characterized by not protrude from the fastener when the.

  In the present invention configured as described above, the turning force applying portion is engaged with the fastener so that the corner of the bolt or nut which is a fastener is fitted into the substantially V-shaped groove portion of the turning force applying portion, and in this state, By rotating the operation portion, the fastener can be rotated and the fastener can be fastened or detached. When the rotational force imparting part is engaged with the fastener, the width dimension of the rotational force imparting part is equal to or less than the maximum outer diameter of the fastener. The means do not protrude from the fastener. Thereby, even when the space around the fastener is relatively narrow, it can be engaged with the fastener without removing other device components around the fastener.

  Further, in the fastener operating tool according to the present invention, in the above invention, the turning force imparting portion includes a plurality of the substantially V-shaped groove portions, and the substantially V-shaped groove portion is provided at a tip portion facing the substantially V-shaped groove portions. 1 of the front end portions so that the fastener can be gripped by one of the front end portions and the substantially V-shaped groove portion. A dimensional relationship between two groove portions and the substantially V-shaped groove portion is set.

  In the fastener operating tool according to the present invention, in the invention described above, the turning force applying portion avoids interference with the fastener between one groove portion of the tip portion and the substantially V-shaped groove portion. It is characterized by having a notch portion.

  Further, in the fastener operating tool according to the present invention, in the above invention, the turning force applying portion is provided on an extension line of a rotating shaft of the turning force applying portion, and a screw rod into which the nut is screwed can be inserted. It is characterized by having a through hole.

  The fastener operating tool according to the present invention further comprises a drop-off prevention rod portion that prevents the nut that is screwed onto the screw rod from falling off, and the drop-off prevention rod portion has the same diameter as the screw rod. It has a screw part, and this screw part has the end face which can contact the end face of the screw rod.

The present invention has a width dimension equal to or smaller than the maximum outer diameter dimension of the fastener, and provides a turning power applying portion that applies a turning force to the fastener, and a rotation operation that extends from the turning power applying portion. An operation portion for transmitting the turning force to the turning force applying portion, and the turning force applying portion includes a substantially V-shaped groove portion formed at substantially the same angle as each of the plurality of corner portions forming the outer peripheral edge of the fastener. And having a tip portion opposed to the substantially V-shaped groove portion, and an angle formed by both side portions formed by connecting the tip portion and the substantially V-shaped groove portion is an acute angle, or The front end portion does not protrude from the fastener when the fastener is engaged. Since the present invention is configured as described above, in the present invention, when the turning portion is engaged with the fastener by fitting the corner portion of the fastener into the substantially V-shaped groove portion of the turning portion, the turning force is applied. In the width direction of the part, the turning force applying part does not protrude from the fastener. As a result, even when the space around the fastener is relatively narrow, it is possible to engage the rotational force applying portion with the fastener without removing other device components around the fastener. Therefore, by rotating the operating portion in a state of being engaged with the fastener, the turning force is transmitted from the turning power applying portion to the fastener, and the fastener is turned to fasten / release the fastener. The operation can be easily performed, and the efficiency of the fastening / detaching operation of the fastener can be improved as compared with the conventional case.

It is a top view which shows 1st Embodiment of the fastener operating tool which concerns on this invention. It is a side view of 1st Embodiment shown in FIG. It is a principal part enlarged plan view which shows the 1st engagement form when engaging 1st Embodiment with the nut which is a fastener. It is a principal part enlarged plan view which shows the 2nd engagement form when engaging 1st Embodiment with the nut which is a fastener. It is a side view which shows operation which makes 1st Embodiment engage with the nut which is a fastener, loosens and remove | releases this nut. It is a side view which shows operation which makes 1st Embodiment engage with the volt | bolt which is a fastener, and loosens and detach | leaves this volt | bolt. It is an AA arrow line view of FIG. It is a front view which shows the principal part of 2nd Embodiment of this invention, and shows the operation procedure which loosens and remove | releases the nut which is a fastener. It is a front view which shows the principal part of 2nd Embodiment of this invention, and shows the operation procedure which loosens and remove | releases the nut which is a fastener. It is a front view which shows the principal part of 2nd Embodiment of this invention, and shows the operation procedure which loosens and remove | releases the nut which is a fastener. It is a front view which shows the principal part of 2nd Embodiment of this invention, and shows the operation procedure which loosens and remove | releases the nut which is a fastener. It is a top view which shows 3rd Embodiment of this invention. It is a side view of 3rd Embodiment shown in FIG. It is a principal part enlarged plan view which shows a state when 3rd Embodiment is engaged with the nut which is a fastener.

  Hereinafter, embodiments of a fastener operating tool according to the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view showing a first embodiment of a fastener operating tool according to the present invention, and FIG. 2 is a side view of the first embodiment shown in FIG. FIG. 3 is an enlarged plan view of a main part showing a first engagement form when the first embodiment is engaged with a nut as a fastener, and FIG. 4 is an engagement of the first embodiment with a nut as a fastener. It is a principal part enlarged plan view which shows the 2nd engagement form when it was made to do.

  1st Embodiment of the fastener operating tool which concerns on this invention engages with the fastener which consists of a volt | bolt or a nut mentioned later, provides a rotatory power, and performs fastening or detachment | release operation of a fastener.

  As shown in FIG. 3, the fastener operating tool 18 according to the first embodiment has a width dimension 4 equal to or less than the maximum outer diameter dimension 3 of the fastener, for example, the nut 2, and a rotational force that imparts rotational force to the nut 2. An imparting unit 5 and an operation unit 7 that extends from the turning power imparting unit 5 and transmits the turning force to the turning power imparting unit 5 in response to a turning operation are provided.

  The rotational force imparting portion 5 is formed at substantially the same angle (120 °) as each of the plurality of corner portions 2a forming the outer peripheral edge of the nut 2, for example, a plurality of substantially V-shaped groove portions provided at every angle of 30 °. 5b and one groove portion 5a provided at the distal end portion 8 facing these substantially V-shaped groove portions 5b and formed at substantially the same angle (120 °) as the substantially V-shaped groove portion 5b. As shown in FIG. 4, the dimensional relationship between these groove portions 5a and the substantially V-shaped groove portion 5b is set so that the nut 2 can be gripped by the groove portions 5a and the substantially V-shaped groove portion 5b. As shown in FIGS. 3 and 4, the rotational force imparting portion 5 has a flat portion 51a connected to the groove portion 5a at the distal end portion 8, and as shown in FIG. The dimensional relationship between the flat portion 51a and the substantially V-shaped groove 5b is set so that the nut 2 can be gripped by the substantially V-shaped groove 5b.

As shown in FIG. 1, 3 and 4, the angle 1 of the both side portions being form formed by connecting a distal end portion 8 of the turning force applying unit 5 and the substantially V-shaped groove 5b is an acute angle. Thereby, when the fastener operating tool 18 is inserted into the fastening / detaching portion, interference with the structure around the nut 2 is suppressed. For example, as shown in FIG. 3, when the nut 2 is gripped by the flat portion 51a of the tip 8 and the substantially V-shaped groove 5b, two outer peripheries connecting the corners 2a of the nut 2 The angle 1 is set so that the side surface portion 2b substantially coincides with each of both side portions connecting the tip portion 8 and the substantially V-shaped groove portion 5b.

  As shown in FIGS. 2 and 4, the rotational force imparting portion 5 has a notch portion 5 c that avoids interference with the nut 2 between the groove portion 5 a of the tip portion 8 and the substantially V-shaped groove portion 5 b. doing. The notch 5c prevents the outer peripheral side surface 2b and the corner 2a of the nut 2 from abutting when the nut 2 is gripped in the state shown in FIG.

  Further, as shown in FIG. 2, the turning force imparting portion 5 is formed in a bottomed shape capable of holding the nut 2 and is provided on an extension line of the rotating shaft of the turning force imparting portion 5. There is a through hole 5d into which a later-described screw rod 26 into which 2 is screwed can be inserted. The operating portion 7 is provided with a mounting hole 11 to which a string-like body (not shown) can be attached. The fastener operating tool 18 according to the first embodiment is prevented from falling off by a string-like body (not shown). The rod part 21 can be connected.

  FIG. 5 is a side view showing an operation in which the first embodiment is engaged with a nut that is a fastener, and the nut is loosened and released, and FIG. 6 is an engagement of the first embodiment with a bolt that is a fastener. FIG. 7 is a side view showing the operation of loosening and removing the bolt, and FIG.

  As shown in FIGS. 5 and 7, for example, the nut 2 as a fastener is screwed into a screw rod 26 fixed to the base material 13 and extended downward in FIG. Yes. The component 14 is held between the nut 2 and the base material 13 by pressure.

  In such a state, when the part 14 needs to be replaced or inspected, the part 14 is removed from the base material 13. At this time, the turning force applying portion 5 of the fastener operating tool 18 according to the first embodiment is engaged with the nut 2 in the state shown in FIG. 3 or FIG. At this time, the screw rod 26 protruding downward from the nut 2 is inserted into the through hole 5 d of the rotational force imparting portion 5. As a result, the nut 2 can be detached without causing the screw rod 26 to become an obstacle.

  As shown in FIG. 7 from the above state, if the operation unit 7 is operated to rotate in any direction indicated by the arrow 12, the space 17 around the turning force applying unit 5 is relatively narrow, and FIG. As shown, even when the component 14 and the wall 16 are close to the fastener operating tool 18, the nut 2 can be detached without the component 14 and the wall 16 becoming an obstacle.

  When attaching the component 14 to the base material 13, an operation of fastening the nut 2 by the fastener operating tool 18 is performed in the reverse procedure to that described above.

  As shown in FIG. 6, when the fastener is not the nut 2 but the bolt 27, the fastening operation of the bolt 27 is performed by the fastener operating tool 18 according to the first embodiment in the same manner as described above. Can do.

  When the nut 2 or the bolt 27 is tightened / released as described above, the turning force applying portion 5 of the fastener operating tool 18 can hold the nut 2 and can hold the head of the bolt 27. Since it is formed in the bottom shape, it is possible to prevent the nut 2 and the bolt 27 from dropping off at the time of fastening or detaching.

  According to the fastener operating tool 18 according to the first embodiment configured as described above, the respective corners of the nut 2 or the head of the bolt 27 are fitted into the substantially V-shaped groove portion 5b of the rotational force applying portion 5, Engage the rotational force applying portion 5 with the nut 2 or the head of the bolt 27 so that the head of the nut 2 or the bolt 27 is gripped between the substantially V-shaped groove 5b and the groove 5a or the flat portion 51a. When doing so, the turning force applying portion 5 does not protrude from the head of the nut 2 or the bolt 27 in the width direction of the turning force applying portion 5. As a result, even when the space 17 around the nut 2 and the bolt 27 is relatively narrow, the rotational force applying portion 5 can be connected to the head of the nut 2 and the bolt 27 without removing other equipment components around the nut 2 and the bolt 27. It is possible to engage the part. Therefore, by rotating the operation unit 7 in a state where the turning force applying unit 5 is engaged with the head of the nut 2 or the bolt 27, the turning force is transferred from the turning force applying unit 5 to the head of the nut 2 or the bolt 27. Therefore, the nut 2 or the bolt 27 can be easily engaged and disengaged, and the efficiency of the operation of the nut 2 or the bolt 27 can be improved.

  FIGS. 8-11 is a front view which shows the principal part of 2nd Embodiment, respectively, and shows the operation procedure which loosens and remove | releases the nut 2 which is a fastener.

  In addition to the configuration of the fastener operating tool 18 according to the first embodiment, the fastener operating tool according to the second embodiment includes a drop-off preventing rod portion 21 that prevents the nut 2 screwed into the screw rod 26 from falling off. It is a thing. As shown in FIG. 8, the dropout prevention rod portion 21 has a mounting hole 20 through which the above-described string-like body (not shown) is inserted. That is, a string-like body (not shown) is inserted through the attachment hole 11 of the fastener operating tool 18 according to the first embodiment and the attachment hole 20 of the drop-off prevention rod portion 21, thereby interposing the string-like body (not shown). Thus, the fastener operating tool 18 and the drop-off prevention rod portion 21 are connected.

  The drop-off prevention rod portion 21 has a screw portion 19 having the same diameter as that of the screw rod 26, and the screw portion 19 has an end surface 29 that can come into contact with the end surface 22 of the screw rod 26.

  In the second embodiment, as shown by an arrow 23 in FIG. 8, when the nut 2 and the washer 28 fastened to the screw rod 26 are detached, as shown by an arrow 24 in FIG. The end surface 29 of the screw portion 19 of the portion 21 is brought into contact with the end surface 22 of the screw rod 26 with which the nut 2 is screwed, and the nut 2 is rotated as described above by the fastener operating tool 18 according to the first embodiment. Move. Thereafter, for example, the nut 2 is rotated by an operator's finger, and the nut 2 is screwed into the screw portion 19 of the drop-off preventing rod portion 21 as indicated by an arrow 23 in FIG. 10, and as indicated by an arrow 25 in FIG. Then, the screw portion 19 of the drop-off prevention rod portion 21 is separated from the screw rod 26, and the nut 2 and the washer 28 are held by the drop-off prevention rod portion 21.

  When the nut 2 is fastened to the screw rod 26, an operation opposite to that described above is performed.

  According to the second embodiment configured as described above, since the fastener operating tool 18 according to the first embodiment is provided, the same operational effects as the first embodiment can be obtained, and the nut 2 can be fastened and tightened. During the detachment operation, the nut 2 and the washer 28 can be securely held so as not to drop off by the drop-off preventing rod portion 21. This contributes to improving the efficiency of the fastening / disengaging operation.

  FIG. 12 is a plan view showing a third embodiment of the present invention, FIG. 13 is a side view of the third embodiment shown in FIG. 12, and FIG. 14 is a diagram when the third embodiment is engaged with a nut as a fastener. It is a principal part enlarged plan view which shows a state.

  As shown in FIGS. 12 to 14, the third embodiment is different from the first embodiment described above in that the rotational force imparting portion 5 is smaller than the maximum outer diameter dimension 3 of the fastener, for example, the nut 2. No groove portion is provided at the point formed in the width dimension 4a and the front end portion facing the substantially V-shaped groove portion 51b, and the front end portion does not protrude from the nut 2 when the nut 2 is engaged. The shape dimension is set and the substantially V-shaped groove 51b is constituted by one groove having an angle of 120 °. Other configurations are the same as those of the first embodiment.

  According to the third embodiment, since the groove portion is not provided at the distal end portion of the rotational force imparting portion 5, the rotational force imparting portion 5 is formed with a width dimension 4a smaller than the maximum outer diameter dimension 3 of the nut 2. Even when the space 17 shown in FIG. 7 around the nut 2 is further narrowed, the nut 2 can be smoothly engaged and disengaged.

  In the third embodiment configured as described above, the substantially V-shaped groove 51b is composed of one groove, and only one corner of the nut 2 is engaged with this one groove. The force becomes smaller and the turning force becomes weaker. However, the nut 2 is effective for fastening and detaching operations when the nut 2 can be rotated even with relatively weak rotational force.

2 Nut (fastener)
3 Maximum outer diameter size 4 Width size 4a Width size 5 Turning power applying portion 5a Groove portion 5b Substantially V-shaped groove portion 5c Notch portion 5d Through hole 7 Operation portion 8 Tip portion 18 Fastener operating tool 19 Screw portion 21 Drop prevention rod portion 22 End face 26 Screw rod 27 Bolt (fastener)
29 End face 51a Flat part 51b Substantially V-shaped groove part

Claims (5)

In a fastener operating tool that engages with a fastener consisting of a bolt or a nut to give rotational force, and performs a fastening or detaching operation of the fastener,
A rotation power applying portion having a width dimension equal to or less than a maximum outer diameter of the fastener, and applying a turning force to the fastener; and extending in response to a rotation operation extending from the turning power applying portion. An operation unit for transmitting rotational force to the power application unit,
The turning force imparting portion has a substantially V-shaped groove portion formed at substantially the same angle as each of a plurality of corner portions forming the outer peripheral edge of the fastener on the side where the operation portion is provided , Having a tip opposite the V-shaped groove,
An angle formed by both side portions formed by connecting the tip portion and the substantially V-shaped groove portion is an acute angle, or the tip portion protrudes from the fastener when the fastener is engaged. A fastener operating tool characterized by not . In the fastener operation tool according to claim 1,
The turning force applying portion, which has a plurality of the generally V-shaped groove has the substantially V-shaped groove and one groove formed in substantially the same angle to the tip of one of the distal end portion groove The fastener operating tool is characterized in that a dimensional relationship between one groove portion of these tip portions and the substantially V-shaped groove portion is set so that the fastener can be gripped by the substantially V-shaped groove portion. . The fastener operating tool according to claim 2,
The fastener operating tool, wherein the turning force imparting portion has a notch portion that avoids interference with the fastener between one groove portion of the tip portion and the substantially V-shaped groove portion. In the fastener operation tool according to claim 1,
The fastener operating tool is provided with a through hole into which the turning force applying portion is provided on an extension line of a rotating shaft of the turning power applying portion and into which a screw rod into which the nut is screwed can be inserted. In the fastener operation tool according to claim 4,
A drop-off prevention rod portion that prevents the nut that is screwed into the screw rod from falling off is provided. A fastener operating tool having an end face capable of abutting.

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