JP6735658B2 - Identification clip - Google Patents

Description

TECHNICAL FIELD The present invention relates to an identification clip which is attached to a fastening body fastened to a bolt to identify that the nut has been fastened to the bolt.

BACKGROUND ART Conventionally, there are various techniques for preventing an operator from forgetting to tighten a nut on a bolt and preventing the tightened nut from coming off the bolt. As such a technique, for example, an operator devises that the nut or the bolt is colored after the nut is fastened to the bolt, and it is identified by coloring that the nut is fastened. Further, in order to prevent the nut from coming off the bolt, a retaining clip attached to the tip of the bolt to which the nut is fastened is described in Patent Document 1 below.

The retaining clip is attached to a bolt to which a nut is fastened, and is provided with a locking portion mounted on a tapered surface formed at the tip of the bolt and an elastic arm that presses the tip of the bolt from above. ing.

JP, 11-280725, A

However, when the nuts and bolts are colored, the coloring may be inconspicuous depending on how the coloring paint is applied, or the coloring paint may not be properly attached due to stains. Further, the coloring paint may come off, or stain may be overcoated on the coloring paint to make the coloring inconspicuous.

On the other hand, according to the retaining clip described above, the tapered surface of the bolt is formed by processing the bolt, and is not versatile. Further, since the retaining clip is attached to the tip of the bolt, a gap may be formed between the retaining clip and the nut, and the nut may loosen in this gap.

The present invention has been proposed in view of the above circumstances. That is, it is an object of the present invention to provide an identification clip that can identify that a nut has been fastened to a bolt, can be used in a general-purpose product, and can appropriately prevent the nut from loosening.

In order to achieve the above-mentioned object, the identification clip according to the present invention has a support piece attached to a bolt to which a nut is fastened, and an introduction path through which the bolt is introduced is formed, and a side portion of the bolt is formed through the introduction path. Is sandwiched between the support pieces and the upper surface of the nut is covered with the support pieces, so that it can be identified that the nut has been fastened to the bolt.

The identification clip according to the present invention is characterized in that the introduction path is formed by opening the support piece in a direction intersecting the axial direction of the bolt.

The identification clip according to the present invention is characterized in that the introduction path is formed by penetrating the support piece in the axial direction of the bolt.

The identification clip according to the present invention is characterized in that a notch is formed at an edge of the introduction path in the support piece, and the support piece in a state of being attached to a bolt is inclined in a direction of removing a nut. ..

The identification clip according to the present invention is characterized in that a side piece that covers a side surface of the nut is provided.

The identification clip according to the present invention is characterized in that its surface is colored.

The identification clip according to the present invention has the above-mentioned configuration. With this configuration, since the nut is covered with the support piece in appearance, it is possible to identify that the nut is after being fastened to the bolt, as compared with the case where the identification clip is not attached. Also, since it can be attached to an existing bolt, it can be used for general-purpose products. In addition, the support piece fits into the thread groove of the bolt, so that the support piece clamps the bolt, the identification clip stays firmly on the bolt, and the nut upper surface is covered to press the nut. Can be appropriately prevented from loosening.

In the identification clip according to the present invention, the introduction path is formed by opening the support piece in the direction intersecting the axial direction of the bolt. With this configuration, the identification clip is attached to the bolt from a direction intersecting the axial direction of the bolt. Therefore, even if the identification clip cannot be attached from the axial direction of the bolt, the identification clip can be easily attached from the direction intersecting the axial direction of the bolt.

In the identification clip according to the present invention, the introduction path is formed by penetrating the support piece in the axial direction of the bolt. With this configuration, the identification clip is attached to the bolt in the axial direction of the bolt. Therefore, even if the identification clip cannot be attached from the direction intersecting the axial direction of the bolt, the identification clip can be easily attached from the axial direction of the bolt.

In the identification clip according to the present invention, a notch is formed at the edge of the introduction path in the support piece, and the support piece attached to the bolt is inclined in the direction of removing the nut. That is, since the part of the support piece is divided into a plurality of parts through the notch, each support piece is easily elastically deformed, and when attached to the bolt, a part of the support piece tilts in the direction of removing the nut. Then, a part of the support piece is arranged in the screw groove and is caught by the screw thread. Therefore, the identification clip can be firmly retained on the bolt and the nut can be appropriately prevented from loosening.

The identification clip according to the present invention is provided with a side piece that covers the side surface of the nut. That is, by covering the side surface of the nut, compared to the case where only the upper surface of the nut is covered, the area that covers the nut becomes wider, and it is easier to identify that the nut has been fastened to the bolt. You can

The identification clip according to the present invention has a colored surface. That is, coloring makes it easier to visually recognize as compared with the case of no coloring, and thus it is possible to easily identify that the nut has been fastened to the bolt.

A mounting process and a use state of the identification clip according to the first embodiment of the present invention are shown, (a) is an external perspective view immediately before being attached to a bolt, and (b) is an external perspective view in a state attached to the bolt. It is a figure. The external appearance of the identification clip which concerns on 1st embodiment of this invention is shown, (a) is a top view, (b) is a left side view, (c) is a front view. It is a schematic sectional drawing which showed a part of use condition of the identification clip which concerns on 1st embodiment of this invention. The example of the attachment means of the identification clip which concerns on 1st embodiment of this invention is shown, (a) is a perspective view of the 1st example of an attachment means, (b) is a perspective view of the 2nd example of an attachment means. The modification of the identification clip which concerns on 1st embodiment of this invention is shown, (a) is a top view of a 1st modification, (b) is a top view of a 2nd modification, (c) is a 3rd modification. Is a top view of the above, and (d) is a top view of the fourth modification. The modification of the identification clip which concerns on 1st embodiment of this invention is shown, (a) is a perspective view of a 5th modification, (b) is a perspective view of a 6th modification, (c) is a 7th modification. Is a perspective view of the eighth modification, (e) is a perspective view of the ninth modification, and (f) is a perspective view of the tenth modification. The attachment process and usage state of the identification clip according to the second embodiment of the present invention are shown, (a) is an external perspective view immediately before being attached to a bolt, and (b) is an external perspective view in the state attached to the bolt. It is a figure. The external appearance of the identification clip which concerns on 2nd embodiment of this invention is shown, (a) is a top view, (b) is a left side view, (c) is a front view.

An identification clip according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an attaching process and a use state of the identification clip 10 according to the first embodiment of the present invention, and FIG. 2 shows an appearance of the identification clip 10. In the following description, as shown in FIG. 1, the axial direction of the bolt 1 is vertical, the inserting direction of the nut 2 into the bolt 1 is downward, and the removing direction of the nut 2 from the bolt 1 is upward. To do. In addition, a direction orthogonal to the axial direction of the bolt 1 is defined as a side surface, and four sides of the side surface are defined as right side, left side, front side and rear side, respectively.

As shown in FIG. 1, the identification clip 10 is attached to the bolt 1 to which the nut 2 is fastened, thereby covering the upper surface and the right side surface of the nut 2, and after the nut 2 is fastened to the bolt 1. It is to identify that there is.

As shown in FIGS. 1 and 2, in the identification clip 10, a part of a flat plate-shaped member is bent downward at a right angle, and is composed of a support piece 11 and a side piece 19. .. The support piece 11 has a flat plate shape, and the left side is chamfered and curved, so that a curved edge portion 12 is formed at the left edge. The right edge is bent downward at a right angle to form a linear edge portion 13. The side piece 19 is connected to the straight edge 13. The side piece 19 has a flat plate shape, is formed in a substantially rectangular shape, and has chamfered corners to have a rounded shape.

The support piece 11 is vertically penetrated to form an introduction hole 14 as an introduction path through which the bolt 1 is introduced and arranged. The introduction hole 14 is a circular shape having a diameter slightly smaller than the reference diameter of the shaft of the bolt 1, and is formed at substantially the center of the support piece 11. At the edge of the introduction hole 14 in the support piece 11, linear cutouts 15 are formed in eight directions, and a plurality of locking pieces 16 are formed by dividing a part of the support piece 11 by the cutouts 15. There is. The locking piece 16 is elastically deformed from a base 17 which is a base side connected to the support piece 11 as a starting point, and a free end 18 which is a side of the introduction hole 14 is bent vertically. The numbers of the notches 15 and the locking pieces 16 are arbitrary.

The upper surface of the support piece 11, which is the front side of the identification clip 10, and the right side surface of the side piece 19 are colored. The colors are various, for example, single colors of red, pink, yellow, green, blue, white, or a combination thereof, but when the identification clip 10 is dirty or when the identification clip 10 is viewed from a distance. Also, it is arbitrary as long as it is easy to visually recognize and it is possible to identify that the nut 2 has been fastened to the bolt 1.

The material of the identification clip 10 is, for example, a metal such as iron, stainless steel, or titanium, or a resin, but any material can be used as long as it is durable and the identification clip 10 firmly stays on the bolt 1.

Next, how to attach the identification clip 10 and how it is used will be described with reference to the drawings. FIG. 3 is a cross section of the identification clip 10 in a used state, and shows a schematic state in which the locking piece 16 is fitted to the bolt 1.

As shown in FIG. 1, the identification clip 10 is attached from above the bolt 1 after the nut 2 is fastened to the bolt 1. More specifically, as shown in FIG. 1A, the lower surface of the support piece 11 faces the upper surface of the nut 2, the introduction hole 14 is aligned with the axis of the bolt 1, and the bolt 1 is introduced into the introduction hole 14. Inserted in. As shown in FIG. 1B, when the support piece 11 is placed on the upper surface of the nut 2, the support piece 11 covers the entire upper surface of the nut 2 and the side piece 19 forms the right side surface of the nut 2. The whole is covered. At the same time, as shown in FIG. 3, the locking piece 16 elastically deforms from the base 17 as the starting point when the free end portion 18 hits the screw thread 4, and the free end portion 18 is inclined upward. The part 18 is arranged in the thread groove 3 and is caught by the thread 4. In this way, the side portion of the bolt 1 is clamped by the support piece 11 via the introduction hole 14. In this state, since the locking piece 16 is caught by the screw thread 4, the nut 2 is prevented from loosening and rising, and the nut 2 is unlikely to come off.

The identification clip 10 may be attached so that the entire left side surface, the entire front surface, or the entire rear surface of the nut 2 is covered with the side piece 19.

Here, when the identification clip 10 is attached to the bolt, an attachment jig may be used as the attachment means of the identification clip 10 in addition to the manual operation. The configuration of this attachment jig and how to attach the identification clip 10 using the attachment jig will be described with reference to the drawings. FIG. 4 shows how the identification clip 10 is attached using the attachment jigs 40a and 40b. What is shown in FIG. 4(a) is a mounting jig 40a as a first example of mounting means, while what is shown in FIG. 4(b) is a second example of mounting means. It is a mounting jig 40b.

As shown in FIG. 4A, the attachment jig 40a has a cylindrical rod shape, and includes a grip portion 41 and a pressing portion 42 connected to a lower end of the grip portion 41. An outer surface of the grip portion 41 is provided with a non-slip process such as knurling. The pressing portion 42 has a pressing surface portion 43 formed at the lower end, and a hole portion 44 is formed from substantially the center of the pressing surface portion 43 in the axial direction. The hole 44 has a cylindrical shape having a size into which the bolt 1 is inserted, and has a diameter larger than that of the bolt 1.

On the other hand, as shown in FIG. 4(b), the mounting jig 40b has a cylindrical rod shape like the mounting jig 40a and has a hole 44 formed in the pressing portion 42, but unlike the mounting jig 40a. A coil spring 45 as an elastic member is attached between the grip portion 41 and the pressing portion 42.

When the identification clip 10 is attached to the bolt 1 by each of the attachment jigs 40a and 40b, the hole 44 is aligned with the bolt 1 and the upper surface of the support piece 11 is pushed by the pressing surface portion 43. The bolt 1 is inserted and the bolt 1 is inserted into the hole 44. That is, the identification clip 10 is pushed into the bolt 1 until it is placed on the upper surface of the nut 2.

As described above, the identification clip 10 according to the first embodiment is configured. Next, the effect of the identification clip 10 will be described.

As described above, in the identification clip 10, a part of a flat plate-shaped member is bent downward at a right angle, and is composed of the support piece 11 and the side piece 19. With this configuration, when the identification clip 10 is attached to the bolt 1, the support piece 11 is placed on the upper surface of the nut 2, and the support piece 11 covers the entire upper surface of the nut 2. That is, as the appearance, since the nut 2 is covered, it is possible to identify that the nut 2 is after being fastened to the bolt 1 as compared with the case where the identification clip 10 is not attached. Moreover, since the nut 2 is pressed by covering the upper surface of the nut 2, it is possible to appropriately prevent the nut 2 from loosening.

According to the identification clip 10, the side piece 19 is connected to the linear edge portion 13 of the support piece 11 by bending downward at a right angle. With this configuration, when the identification clip 10 is attached to the bolt 1, the side piece 19 covers the entire right side surface of the nut 2. That is, since the entire right side surface of the nut 2 is covered, the area over which the nut 2 is covered becomes wider as compared with the case where only the upper surface of the nut 2 is covered, and after the nut 2 is fastened to the bolt 1. It can make things easier to identify.

In addition, the side piece 19 is chamfered at the corner and has a rounded shape. Therefore, the operator can safely attach the identification clip 10 as compared with the case where the corners are right angles.

According to the identification clip 10, the support piece 11 is vertically penetrated to form an introduction hole 14 into which the bolt 1 is introduced and arranged. At the edge of the introduction hole 14 in the support piece 11, linear cutouts 15 are formed in eight directions, and a plurality of locking pieces 16 are formed by dividing a part of the support piece 11 by the cutouts 15. There is. With this configuration, when the identification clip 10 is attached to the bolt 1, the locking piece 16 elastically deforms from the base portion 17 as the starting point when the free end 18 hits the screw thread 4, and the locking piece 16 is inclined upward. In this state, the free end 18 is arranged in the thread groove 3 and is caught by the thread 4. In this way, the side portion of the bolt 1 is clamped by the support piece 11 via the introduction hole 14. Therefore, since the locking piece 16 is caught on the screw thread 4 and the identification clip 10 is firmly retained on the bolt 1, the nut 2 is prevented from loosening and rising, and the nut 2 is hard to come off and the nut 2 loosens. Can be appropriately prevented.

The identification clip 10 is attached to the bolt 1 from above the bolt 1 by the introduction hole 14. Therefore, even in a working environment where the identification clip 10 cannot be attached from the side of the bolt 1, the identification clip 10 can be easily attached from above the bolt 1.

According to the identification clip 10, the upper surface of the support piece 11 on the front side and the right side surface of the side piece 19 are colored. That is, coloring makes it easier to visually recognize as compared with the case of no coloring, and thus it is possible to easily identify that the nut 2 has been fastened to the bolt 1.

Since the identification clip 10 is attached to the existing bolt 1, it can be used for general-purpose products.

Next, a modified example of the first embodiment will be described based on the drawings. FIG. 5 shows a first modification to a fourth modification as a modification of the first embodiment, and FIG. 6 shows a fifth modification to a tenth modification. In the following, only the configuration different from the identification clip 10 will be described, and the description of the same configuration as the identification clip 10 will be appropriately omitted.

As shown in FIG. 5, the shape of the notch 15 is arbitrary. That is, as shown in FIG. 5A, in the identification clip 10a according to the first modification, the notch 15 is formed in a V shape. Further, as shown in FIG. 5(b), in the identification clip 10b according to the second modified example, the notch 15 is formed in a U shape. Further, as shown in FIG. 5C, in the identification clip 10c according to the third modified example, the free end portion 18 of the locking piece 16 is supported because the notch 15 is formed in a V shape. It is formed in a protruding shape toward the center of the piece 11. Further, as shown in FIG. 5D, in the identification clip 10d according to the fourth modified example, the notch 15 is formed in the tangential direction in the circle of the introduction hole 14, and the base portion 17 and the free end portion 18 are formed. Deviated in the normal direction.

As shown in FIG. 6, the shapes of the support piece 11 and the side piece 19 are arbitrary, and are appropriately selected depending on the shape of the nut 2, for example. That is, as shown in FIG. 6A, in the identification clip 10e according to the so-called cap-type fifth modified example, the support piece 11 is circular, and the side piece 19 is the entire peripheral portion of the support piece 11. It is connected to the circumference and is formed in an annular shape. Further, as shown in FIG. 6B, in the identification clip 10f according to the so-called U-shaped sixth modification, the support piece 11 has a quadrangular shape, and each of the two side pieces 19 has a support piece. It is connected to the edges of both ends of 11. It should be noted that the four side pieces may be connected to the edges of the four sides of the square shape. Further, as shown in FIG. 6C, in a so-called three-claw type identification clip 10g according to a seventh modified example, the support piece 11 has a hexagonal shape, and each of the three side pieces 19 has a hexagonal shape. It is connected to the edges of three sides of the shape that are not adjacent to each other. The six support pieces 19 may be connected to the edges of the hexagonal six sides. Further, as shown in FIG. 6D, in the identification clip 10h according to the so-called arrow-shaped eighth modification, the single side piece 19 is formed in an inverted triangular shape. Further, as shown in FIG. 6E, in the identification clip 10i according to the so-called tongue-attached ninth modified example, the support piece 11 is circular and the single side piece 19 is circular. It is connected to any of the edges. Further, as shown in FIG. 6(f), in the identification clip 10j according to the tenth modification of the so-called chevron-shaped drawing type, the locking piece 16 is inclined upward before being attached to the bolt 1.

The identification clips 10a to 10j according to the modified examples of the first embodiment described above have the same effects as the identification clip 10. Further, like the identification clip 10, these identification clips 10a to 10j are attached to the bolt 1 manually or by the attachment jigs 40a and 40b.

Next, an identification clip according to the second embodiment of the present invention will be described with reference to the drawings. FIG. 7 shows an attaching process and a use state of the identification clip 20 according to the second embodiment of the present invention, and FIG. 8 shows an appearance of the identification clip 20. In addition, in the following description, a configuration different from that of the identification clip 10 according to the first embodiment is described, and the same configuration as the identification clip 10 is denoted by reference numerals in FIGS. 7 and 8 and description thereof is omitted.

As shown in FIG. 7 and FIG. 8, the support piece 21 of the identification clip 20 is opened to the left side, so that the introduction groove 24 is formed as an introduction path into which the bolt 1 is introduced and arranged. There is. The introduction groove 24 divides the support piece 21a into two support pieces 21a and 21b. The introduction groove 24 is composed of a passage groove portion 30 and a locking groove portion 31. The passage groove portion 30 has a width that gradually narrows from the left end edge of the support pieces 21a, 21b toward the center, and is formed to be slightly larger than the outer diameter of the bolt 1. On the other hand, the locking groove portion 31 has a substantially circular shape, is disposed substantially at the center of the support piece 21, and is formed slightly smaller than the diameter of the valley of the bolt 1. Notches 25 are formed at two positions on the edge of the locking groove portion 31. The support pieces 21a and 21b are elastically deformed from the base portion 27 which is the base side, and the free end portion 28 is bent vertically.

Next, how to attach and use the identification clip 20 will be described with reference to the drawings.

As shown in FIG. 7A, in the identification clip 20, the passage groove portion 30 of the introduction groove 24 is aligned with the lateral side of the bolt 1 and the support piece 21 slides on the upper surface of the nut 2 so that the bolt 1 passes through the passage. It passes through the groove portion 30 and is arranged in the locking groove portion 31. That is, as shown in FIG. 7B, when the identification clip 20 slides and the supporting pieces 21a, 21b are placed on the upper surface of the nut 2, the supporting piece 21 or the supporting pieces 21a, 21b causes the nut 2 to move. Of the nut 2, and the side piece 29 covers the entire right side surface of the nut 2. At that time, the support pieces 21a and 21b are elastically deformed by hitting the thread groove 3 or the screw thread 4 and bending up and down along the thread groove 3 from the base portion 27 as a starting point, and the inside of the base portion 27 is arranged in the thread groove 3. It is caught and is caught by the screw thread 4. In this way, the side portions of the bolt 1 are held between the support pieces 21a and 21b via the introduction groove 24. In this state, since the base portion 27 is caught by the screw thread 4, the nut 2 is prevented from loosening and rising, and the nut 2 is unlikely to come off.

As described above, the identification clip 20 according to the second embodiment is configured. Next, the effect of the identification clip 20 will be described. In the following description, effects based on a configuration different from that of the identification clip 10 according to the first embodiment will be described, and description of the same effects as the identification clip 10 will be omitted.

As described above, according to the identification clip 20, the support piece 21 is opened to the left side, so that the introduction groove 24 into which the bolt 1 is introduced and arranged is formed. With this configuration, when the identification clip 20 is attached to the bolt 1, the supporting pieces 21a and 21b are elastically deformed by hitting the thread groove 3 or the thread 4 and bending up and down along the thread groove 3 with the base portion 27 as a starting point. Then, the inside of the base portion 27 is arranged in the screw groove 3 and is caught by the screw thread 4. In this way, the side portions of the bolt 1 are held between the support pieces 21a and 21b via the introduction groove 24. Therefore, since the base portion 27 is caught on the screw thread 4 and the identification clip 20 is firmly retained on the bolt 1, the nut 2 is prevented from loosening and rising, the nut 2 is hard to come off, and the nut 2 is properly loosened. Can be prevented.

Further, the identification clip 20 is attached to the bolt 1 from the side of the bolt 1 by the introduction groove 24. Therefore, even in a working environment where the identification clip 20 cannot be attached from above the bolt 1, the identification clip 20 can be easily attached from the side of the bolt 1.

In addition, as a modified example of the second embodiment, the side piece 29 may be provided on either the front edge or the rear edge of the support piece 21 or on either side.

Further, the above-mentioned nuts are various, for example, a hexagon nut, a hexagon nut with a seat, a hexagon nut with a collar, a hexagon nut with a flange, a square nut, a round nut, and the like. Further, the above-mentioned bolts include those called screws and screws regardless of their size.

Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment. The present invention can be modified in various ways without departing from the matters described in the claims.

1 bolt 2 nut 3 screw groove 4 screw thread 10, 10a-j, 20 identification clip 11, 21, 21a, b support piece 12, 22 curved edge portion 13, 23 straight edge portion 14 introduction hole (introduction path)
15, 25 Notch 16 Locking piece 17, 27 Base portion 18, 28 Free end portion 19, 29 Side piece 24 Introducing groove (introducing path)
30 passage groove part 31 locking groove part 40a, b mounting jig 41 gripping part 42 pressing part 43 pressing surface part 44 hole part 45 coil spring

Claims (5)

To bolt nut is fastened, has a plate-like support pieces mounted without rotating, and a side piece which is articulated previously bent to the part of the end of the support piece,
Since the support piece is pierced in the axial direction of the bolt, an introduction path through which the bolt is introduced is formed,
Since the notch is formed at the edge of the introduction path, a flat plate-like locking piece to be fitted with the bolt is formed,
By attaching the support piece to the bolt through the introduction path, the locking piece inclines in the direction of removing the nut,
When the slanted locking piece is caught by the screw thread, the side portion of the bolt is clamped by the support piece, and
The entire nut top surface is covered with the supporting piece, that the entire side surface of the nut that faces the side pieces are covered with the side piece, to identify that the nut is then fastened to the bolt,
An identification clip characterized by the following. The support piece can be attached to a bolt in a state where the side piece faces an arbitrary portion on the side surface of the polygonal nut,
The identification clip according to claim 1, wherein: Made of metal,
The identification clip according to claim 1 or 2 , characterized in that By pressing the upper surface of the support piece with a mounting jig, the support piece is attached to the bolt,
The identification clip according to any one of claims 1 to 3, wherein: The surface is colored,
The identification clip according to any one of claims 1 to 4, wherein:

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