JP5953877B2 - Marking tools for bolts and nuts - Google Patents

Description

  The present invention relates to a bolt / nut marking tool used for marking a bolt, a nut, a washer, an attachment plate, etc. after primary tightening of the bolt when steel materials are joined with bolts, nuts, and washers in steel construction. Is.

  When steel materials are joined with bolts, nuts and washers in steel construction work, first confirm that the tightening has been performed properly by applying a series of linear marks on the bolts, nuts, washers and accessory plates, etc. during the primary tightening. Confirm that the primary tightening process has been completed. After the final tightening, which is the subsequent process, determine whether the bolts and nuts are rotated or not around the shaft based on the misalignment angle of the linear marks on the bolts, nuts, washers, and attachment plates during the primary tightening. I was doing it.

  Thus, the marking at the time of the primary tightening is important in the bolting process. This marking can be done manually by the operator with a marking pen, but not only is it possible to perform accurate marking at dangerous locations such as high places or places where the posture is unreasonable at the site of steelwork. There is also a problem that safety cannot be secured.

  In addition, marking is done with a one-touch method. Marking made of felt made of a linear marking surface is impregnated with marking ink, and the holder holding the marker is covered with a bolt or the like to lower the holder. Conventionally, marking is performed by pressing a marking surface formed in a linear shape against the surfaces of bolts, nuts, washers, and attachment plates (see, for example, Patent Document 1 and Patent Document 2).

  However, since the above-mentioned conventional ones perform marking by pressing the marking surface formed in a line on the surface of bolts, nuts, washers, attachment plates, etc., the markings may be uneven. There is a problem that it is not possible to perform proper marking.

JP 2002-355777 A Japanese Patent Laid-Open No. 51-121897

  The present invention solves the conventional problems, and provides a marking tool for bolts and nuts that can perform marking on bolts and nuts after primary tightening with one touch and can perform accurate markings without marking spots. It was completed as a purpose.

The bolt / nut marking tool of the present invention, which has been made to solve the above-mentioned problems, rotates the marking roller to a marking holder that is movable from the distal end of the bolt, nut, and washer that is fastened to be marked toward the proximal direction. A marking tool for bolts and nuts, which is movably attached , comprising two marking rollers, each of which is a roller arm which is rotatably attached to the marking holder with a support shaft portion. A basic invention is characterized in that it is rotatably attached to roller shafts at both ends .

The two marking rollers are a pair of roller unit frames each composed of a pair of roller shafts provided between both ends of a pair of roller arms and a support shaft protruding from the center of the outer surface of each roller arm. Preferably, the roller unit is rotatably attached to the roller shaft portion, and the roller unit is preferably attached to the marking holder with the support shaft portion .

Further, the roller unit can be detachably attached to the marking holder .

It is preferable that a guide slider is provided below the marking holder so as to enclose the bolt, nut, and washer, and the marking holder is slidable up and down on the guide slider.

Further, it is preferable that a return spring is provided between the marking holder and the guide slider.

In addition, it is preferable that an ink occlusion body for supplying ink to the marking roller is provided on the guide slider.

  In addition, the ink occlusion body can be detachably provided on the guide slider.

  Moreover, you may provide the cover which coat | covers the said ink occlusion body and the said marking roller.

  The bolt / nut marking tool according to the present invention as described above is first set to a position where the front end side of the bolt / nut / washer to which the marking holder is fastened faces. Next, the marking holder is moved from the tip of the bolt, nut, and washer toward the base end. Then, since the marking roller is pivotally attached to the marking holder that is movable from the front end of the bolt, nut, and washer that is fastened to be marked, the marking roller is bolt, nut, and washer. A series of linear marks are attached to the bolts, nuts, washers, and attached plates by the ink of the marking roller while continuously contacting with the surface of the roller. In this case, the marking roller rotates in contact with the bolts, nuts, washers, and attached plates at points, so that the mark is not spotted and an accurate mark can be made.

  In addition, a guide slider that surrounds the bolt, nut, and washer is provided below the marking holder, and the marking holder is slidable up and down on the guide slider. -By enclosing the washer, it is possible to automatically mark with a precise mark position.

  Further, if a return spring is provided between the marking holder and the guide slider, the marking roller rotates continuously on the surface of the bolt, nut, and washer, and comes into continuous contact in the form of dots. After marking a series of linear marks on the bolts, nuts, washers, and attachment plates with the ink of the rollers, the marking holder is automatically returned by the return spring, and at the same time, the marking rollers are returned to the old position while the bolts, nuts, washers And the attachment plate is marked again so that a more accurate mark can be given.

  In addition, by providing an ink occlusion body for supplying ink to the marking roller on the guide slider, the ink for the marking roller is automatically supplied, so that a large number of marks can be made.

Further, there as the marking roller is formed of two, can be shortened moving distance can the shorter mark working time at the same time marks can mark holder bolt shank and the nut washer positioned vertically by a vertical Is.

  The two marking rollers are a pair of roller unit frames each composed of a pair of roller shafts extending between both ends of a pair of roller arms and a support shaft protruding from the center of the outer surface of each roller arm. Each of which is a roller unit that is rotatably attached to the roller shaft portion, and the roller unit that is rotatably attached to the marking holder with the support shaft portion includes two marking rollers. Each roller arm is pivotally supported by the marking holder with a support shaft projecting from the center of the outer surface of each roller arm, making it easy to mount.

  Further, by making the roller unit detachable from the marking holder, the replacement becomes easy.

  In addition, by providing the ink occluding member so as to be detachable from the guide slider, it is possible to easily replenish ink to the ink occluding member.

  Further, by providing a cover that covers the ink occlusion body and the marking roller, it is possible to prevent ink from evaporating when not in use, and to prevent the marking roller from drying.

  Further, even if the marking roller is composed of one piece, a series of linear marks can be accurately attached to the bolt, nut, washer, and accessory plate.

Sectional drawing which shows the 1st Embodiment of this invention. Sectional drawing which shows the 1st Embodiment of this invention in the initial position of a mark king process. Sectional drawing which shows the 1st Embodiment of this invention in the intermediate position of a mark king process. Sectional drawing which shows the 1st Embodiment of this invention in the completion position of a mark king process. The side view which shows the 1st Embodiment of this invention. The side view which shows the 1st Embodiment of this invention in the completion position of a mark king process. It is a figure which shows the roller unit used in the 1st Embodiment of this invention, (A) is a perspective view, (B) is a front view, (C) is a side view. The perspective view which shows the state which mounted | wore the cover in the 1st Embodiment of this invention. The side view which shows the state which mounted | wore the cover in the 1st Embodiment of this invention. The cross-sectional view which shows the state which mounted | wore the cover in the 1st Embodiment of this invention. FIG. 3 is a secondary sectional view showing a state where a cover is mounted in the first embodiment of the present invention. The perspective view which shows the cover used in the 1st Embodiment of this invention. Sectional drawing which shows the cover used in the 1st Embodiment of this invention. The schematic sectional drawing which shows the 2nd Embodiment of this invention. The schematic sectional drawing which shows the 2nd Embodiment of this invention in the completion position of a mark king process. The schematic cross-sectional view which shows the 2nd Embodiment of this invention. The schematic sectional drawing which shows a reference form. Perspective view showing bolts, nuts, washers and attachment plates for marking

  Next, 1st-5th embodiment of the marking tool for bolts and nuts concerning the present invention is described based on figures.

[First Embodiment]
First, a first embodiment will be described with reference to FIGS.

  1 to 6, 1 is a marking holder, and the marking holder 1 is operated to move from the distal end of the bolt (a), nut (b), and washer (c) that are fastened to mark toward the proximal direction. It is. Reference numeral 2 denotes a marking roller. The marking roller 2 is positioned on the inside of the marking holder 1 and is pivotally attached to the body 11 of the marking holder 1 so as to be freely rotatable.

  Reference numeral 3 denotes a guide slider that surrounds the bolt, nut, and washer provided below the marking holder 1, and the guide slider 3 and the marking holder 1 are slidable up and down.

  The guide slider 3 is fitted along the inner surface of the body portion 11 of the marking holder 1 so as to be slidable up and down. It will be located inside. Therefore, a slit 31 through which the shaft portion 2a of the marking roller 2 can pass is provided in the guide slider 3 so that the marking roller 2 can move in the guide slider 3 by sliding the marking holder 1.

  The guide slider 3 is provided with an ink occlusion body 4 for supplying ink to the marking roller 2. The marking roller 2 is rotated when reciprocating up and down in the guide slider 3 and comes into contact with the ink occlusion body 4 to supply ink to the entire surface of the roller.

  A return spring 5 is provided between the marking holder 1 and the guide slider 3. That is, the return spring 5 made of a push spring is provided between the lower surface of the top plate 12 of the marking holder 1 and the upper surface of the top plate 32 of the guide slider 3.

  Further, in this embodiment, the marking roller 2 is composed of two pieces. That is, as shown in FIG. 7, a pair of roller shaft bar portions 22, 22 laid between both ends of the pair of roller arms 21, 21 and shaft portions 2 a, 2 a projecting from the center of the outer surface of each roller arm 21, 21. The roller unit frame 23 is a roller unit 20 in which two marking rollers 2 and 2 are rotatably attached to the pair of roller shaft rod portions 22 and 22, respectively. As shown in FIGS. 5, 6, and 10, the roller unit 20 has the shaft portions 2a and 2a and is pivotally attached to the opposing wall surface of the body portion 11 of the marking holder 1 so as to be rotatable. It is. The inner portions of the shaft portions 2a and 2a can pass vertically through slits 31 provided in the guide slider 3.

  The roller unit 20 is detachable from the marking holder 1. That is, in this embodiment, as shown in FIG. 5 and FIG. 6, the bearing portion 112 formed laterally continuously at the upper end of the guide cut groove 111 provided with the opening 111 a at the lower end of the body portion 11 of the marking holder 1. The shaft portion 2a of the roller unit 20 is detachable from the opening 111a.

  Further, since the roller unit 20 can be easily attached to and detached from the marking holder 1, the guide slider 3 has an opening 111 a in the guide cut groove 111 that continues to the bearing portion 112 in the marking holder 1. A fixing formed by a U-shaped notch that can be engaged with the contact portion between the marking holder 1 and the guide slider 3 so that it can be fixed against the return spring 5 at a position above the lower end of the slit 31. Springs 6a and 6b are provided. The fixing springs 6a and 6b are automatically engaged against the return spring 5 when the marking holder 1 and the guide slider 3 slide and coincide with each other, so that the fixing spring 6a on the marking holder 1 side is inward. The engagement is released by pressing, and the guide slider 3 is pushed down by the return spring 5.

  The ink occlusion body 4 is detachably provided on the guide slider 3. In other words, the ink occlusion body 4 has an engagement portion 41 a which is provided on the inner surface of the guide slider 3 and which is continuously provided on the inner surface of the guide slider 3. It is assumed that the joint portion 3a is slidably engaged. Further, a locking collar 41b is provided at the lower end of the occlusion body receiver 41 in order to make it easy to attach and detach.

  In this embodiment, as shown in FIGS. 9 to 13, a cover 7 for covering the ink occlusion body 4 and the marking roller 2 is prepared. As a result, ink can be prevented from evaporating when not in use, and deformation due to drying of the marking roller 2 can be prevented.

  The cover 7 is a groove rail portion that engages with the longitudinal rail portions 33, 33 provided on the opposite surfaces of the occlusion body receiver 41 of the guide slider 3 to which the ink occlusion body 4, that is, the occlusion body receiver 41 is attached. 71, 71 are formed on both side surfaces of the cover main body 70, and a concave occlusion body covering portion 72 is formed on the inner side surface of the cover main body 70, and a cap portion 73 is formed on the outer side surface to cover the marking roller 2. Is.

  As shown in the drawing, the bolt / nut marking tool according to this embodiment is provided with a gripping portion 8 with a hook hooking hole 8 a at the upper end of the marking holder 1. Further, a through hole 14 for attaching a string for preventing fall is provided at the upper edge of the marking holder 1.

  In this structure, a series of linear marks (e) are attached to the bolt (a), nut (b), washer (c), and attachment plate (d) to which the steel structure shown in FIG. 22 is fastened. Is.

  First, the bolt, nut, and washer with the marking holder 1 fastened to the front end face. As shown in FIGS. 1 and 5, the lower end of the guide slider 3 provided below the marking holder 1 is matched with the nut and washer to enclose the bolt, nut and washer.

  Subsequently, as shown in FIGS. 2 to 4, the marking holder 1 is moved from the front end of the bolt, nut, and washer toward the base end. Then, as shown in FIG. 2, in this embodiment, when the marking roller 2, which is made up of two by the roller unit 20, is in contact with the upper end edge of the nut (B). The roller unit 20 has a lower marking roller 2 extending outwardly of the nut (b) around the shafts 2a and 2a projecting from the center of the outer surface of the roller arms 21 and 21. 3), the lower marking roller 2 exposes the side surface of the nut (b) and the upper marking roller 2 is exposed from the nut (b) as shown in FIG. Mark the side of b).

  Further, when the marking holder 1 is moved downward, as shown in FIG. 4, the lower marking roller 2 is on the side surface of the washer (c) and the upper surface of the attachment plate (d), and the upper marking roller 2 is a nut (a). Since the upper surface of the mark is marked, a series of linear marks (e) can be applied to the bolts (a), nuts (b), washers (c) and attachment plates (d) that have been fastened.

  When the marking holder 1 is returned to the old state, the marking rollers 2 and 2 perform marking in the reverse order of the attachment plate (d), washer (c), nut (b), and bolt (b). It is also a thing.

  Such a marking operation can be performed with a single touch of moving the marking holder 1 downward, and the marking rollers 2 and 2 are rotated and contacted at points to mark bolts, nuts, washers, and attachment plates. As a result, the mark can be accurately formed without causing spots.

[Second Embodiment]
In the second embodiment shown in FIGS. 14 to 16, the pair of roller arms 21 and 21 of the roller unit frame 23 of the roller unit 20 are bent in a square shape around the shaft portions 2a and 2a. is there.

In the second embodiment as well, a series of linear marks (e) are attached to the bolts (a), nuts (b), washers (c) and attachment plates (d) to which the steel structure shown in FIG. 18 is fastened. The marking operation is the same as in the first embodiment.

[ Reference form ]
In the reference embodiment shown in FIG. 17 , the marking roller 2 is composed of one piece.

  In this embodiment, the marking roller 2 is pivotally supported on the marking holder 1 at a position located on the side of the bolt (A), nut (B), and washer (C) to be marked. Specifically, the marking roller 2 is pivotally supported on the lower end of a roller arm 21 bent in a square shape pivotally supported on the marking holder 1 at its upper end.

  When the marking roller 2 is in the upper position, it contacts the side surface of the shaft portion of the bolt (A) and moves downward to contact the upper end edge of the nut (B). B) A series of linear marks on the bolt (a), nut (b), washer (c), and attached plate (d) to which the marking roller 2 swings outward in the direction of FIG. 22 and fastens the steel structure shown in FIG. (E).

In addition, although this reference form of illustration does not have the slider 3 for guides and the ink occlusion body 4, you may provide the slider 3 for guides and the ink occlusion body 4.

1 Marking holder 2 Marking roller
2a Shaft
20 Roller unit 3 Guide slider 4 Ink occlusion body 5 Return spring 7 Cover

Claims (8)

A marking tool for bolts and nuts in which a marking roller is rotatably attached to a marking holder that is movable from the tip of a bolt, nut, or washer that is fastened to be marked to the proximal direction. Each marking roller is rotatably attached to a roller shaft at both ends of a roller arm that is rotatably attached to the marking holder with a support shaft. Marking tool for nuts. The pair of rollers of the roller unit frame, wherein the two marking rollers are composed of a pair of roller shafts extending between both ends of the pair of roller arms and a support shaft protruding from the center of the outer surface of each roller arm. The bolt unit according to claim 1 , wherein the roller unit is rotatably attached to a shaft part, and the roller unit is rotatably attached to the marking holder with the support shaft part . Marking tool. The bolt / nut marking tool according to claim 2, wherein the roller unit is detachably attached to the marking holder . The guide slider that surrounds the bolt, nut, and washer is provided below the marking holder, and the marking holder is slidable up and down on the guide slider . Marking tool for bolts and nuts. The bolt / nut marking tool according to claim 4 , wherein a return spring is provided between the marking holder and the guide slider . The bolt / nut marking tool according to claim 4 or 5 , wherein an ink occlusion body for supplying ink to the marking roller is provided on the guide slider . The bolt / nut marking tool according to claim 6, wherein the ink occlusion body is detachably provided on the guide slider. The bolt / nut marking tool according to claim 6 or 7 , further comprising a cover for covering the ink occlusion body and the marking roller .