JP2009072869A - Aerosol type bolt marking instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an aerosol type bolt marking instrument using paint as marking liquid for easily applying clear marking. <P>SOLUTION: The aerosol type bolt marking instrument 1 comprises: a masking part 2 having a bolt covering portion 4 extending along a contour consisting of the side faces of bolt (a), a nut (b), and a washer (c) and the surface of a joint member (d) on the lower face of the washer (c) for covering all or part thereof, and a vertical slit 5 formed in the bolt cover portion 4; and an aerosol mounting-injection part 3 having a cover portion 7 encircling at least the slit 5, a stem socket portion 8 into which a stem part S of an aerosol container B filled with marking liquid is inserted, a marking liquid nozzle portion 9 provided in the cover portion 7, and a marking liquid communication passage portion 10 communicating the stem socket portion 8 with the marking liquid nozzle portion 9. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the present invention, for example, when a steel material is bolted through a bonding plate, a primary tightening position is marked on a bolt in a primary tightening state in order to inspect that the bolt is properly tightened (main tightening). (Marking) The present invention relates to an aerosol bolt marking tool that can be used for applications.

  For example, as shown in FIG. 1, when the steel material A such as a steel structure building or a bridge pier is bolted via a joining plate B such as a steel plate, a high strength bolt C made of a material 3 to 4 times harder than ordinary iron. In addition, each high-strength bolt C is subjected to bolt fastening work in the following procedure in order to eliminate work mistakes such as bolt loosening.

  First, using a primary tightening wrench, torque wrench or the like, a nut (high-strength bolt) is tightened with a torque for each bolt diameter (referred to as “primary tightening”). Next, as shown in FIG. 2, a white straight line M is drawn across the side surfaces of the bolt a, the nut b and the washer c in the primary tightening state and the surface of the joining member d on the lower surface of the washer to indicate the primary tightening position of the bolt. Mark (referred to as "bolt marking"). Next, the final bolt is tightened by using a high-strength bolt-specific tightening machine (for example, a shear wrench) (referred to as “main tightening”). Finally, the inspector visually observes the deviation of the marking, and performs a tightening completion visual inspection on all bolts to determine whether the rotation amount (angle) of the nut b is within the specified angle with respect to the bolt a. To do.

  This tightening completion visual inspection is an inspection to confirm that all the bolts are tightened with a uniform force after the final tightening, and the contents of the inspection include the rotation amount (angle) of the nut relative to the bolt, The bolt and nut or the nut and washer are rotated together to check whether there is a co-rotation, and whether there is a rotation around the shaft. Only the nut is rotating and the rotation amount is within the specified angle. Is appropriate.

  Conventionally, bolt marking is a work that requires skill and is extremely inefficient because an operator manually marks each bolt using a marker pen. Moreover, since marking is often done in places where it is difficult to work, such as under the beam of a building or the bridge girder of a bridge, marking can be performed more easily from the viewpoint of ensuring safety. Tools were sought. So, some ideas have been proposed so far.

  For example, in Patent Document 1, a cylinder portion and a piston portion that are fitted to a central axis perpendicular to the longitudinal direction of the arm are provided, and a plurality of marker shafts are oscillated and pushed out on the bottom surface side of the piston portion. In addition, a stamp type marking device configured to impress a dotted mark on a nut or a joining member is disclosed.

  Patent Document 2 discloses a wrench with a marking function in which a socket is provided in accordance with a central axis perpendicular to the longitudinal direction of an arm, and a rod-shaped marker is provided at the axial center position.

  Patent Document 3 includes a marker pen portion having a marker core, an introduction hole through which the marker core can be inserted in the center of the head, and a female-shaped recess that can accommodate a bolt, a nut, and a washer. And a socket part in which an ink-impregnated belt-like body having a shape corresponding to the mark along the axis is fixed to a female inner wall surface corresponding to a corner of the nut.

JP 2004-284004 A JP 2006-136994 A Utility Model Registration No. 3126481

As described above, the bolt marking operation is required to allow the operator to easily perform marking, and to perform clear marking in order to accurately perform the tightening completion visual inspection.
In addition, since it is necessary that the marking does not disappear for a while even if it rains, it is preferable to use a paint for the marking liquid, but in the case of a pen-type or stamp-type marking tool as disclosed in the past However, it was difficult to use a paint as a marking liquid.

  Therefore, the present invention is to provide a new bolt marking tool that can use a paint as a marking liquid and that can easily and clearly perform marking.

In the present invention, for example, as shown in FIGS. 3 and 4, all or a part of the bolts a, nuts b, and washers c are covered along the contours of the surfaces of the joining members d on the lower surfaces of the washers c. A masking portion 2 having a configuration in which a bolt covering portion 4 is provided and a slit 5 is provided vertically in the bolt covering portion 4;
A cover part 7 surrounding at least the slit 5, a stem receiving part 8 for inserting a stem part S of an aerosol container B filled with marking liquid, a marking liquid injection port part 9 provided in the cover part 7, and An aerosol bolt marking tool 1 having an aerosol mounting / injecting unit 3 having a marking liquid flow passage unit 10 that communicates a stem receiving unit 8 and a marking solution injecting unit 9 is proposed.
3 and 4 are examples shown for explaining the present invention, and the present invention is not limited to the aerosol bolt marking tool 1 shown in FIGS. 3 and 4.

  Such an aerosol bolt marking tool of the present invention is set, for example, by setting the aerosol bolt marking tool 1 so as to cover the masking part 2 on the bolt a or the like that has been tightened after the bolt a is tightened. The stem S of the filled aerosol container B is inserted and pressed into the stem receiving portion 8 to bring the aerosol container B into an injection state. Then, the marking liquid is ejected from the marking liquid ejection port portion 9 into the cover portion 7. At this time, since the bolt covering portion 4 is tightened so as to cover the side surfaces of the bolt a, nut b and washer c and the surface of the joining member d on the lower surface of the washer c, the marking liquid adheres only to the bolt a side through the slit 5. In addition, a clear marking can be applied to the shape of the slit 5. However, the method of using the aerosol bolt marking tool 1 of the present invention is not limited.

  As described above, since the aerosol bolt marking tool of the present invention can be marked using an aerosol container, a paint can be used as a marking liquid, and it can be marked so that it will not disappear for a while even if it rains. it can. In addition, marking can be easily performed simply by placing an aerosol-type bolt marking tool on a bolt or the like in a tightened state and attaching an aerosol container to an injection state. Furthermore, compared with a pen-type or stamp-type marking tool, it is possible to accurately and clearly mark uneven portions.

BEST MODE FOR CARRYING OUT THE INVENTION

  Embodiments of the present invention will be described in detail below, but the scope of the present invention is not limited to the embodiments described below.

  The aerosol-type bolt marking tool 1 (referred to as “the present marking tool 1”) shown in FIG. 5 shows an example of an embodiment of the present invention. An injection unit 3 is provided, and the masking unit 2 and the aerosol mounting / injection unit 3 are detachably connected.

(Masking part 2)
As shown in FIG. 5 and FIG. 6, the masking portion 2 includes the surfaces of the bolts a, the nuts b, and the washers c in the primary tightened state, and the surfaces of the joining members d on the lower surfaces of the washers (collectively, these are referred to as “surfaces such as bolts a” And a bolt covering portion 4 that covers all or a part of the surface of the joining member d on the side surface of the bolt a, the nut b, and the washer c, and the lower surface of the washer. A slit 5 serving as a punched portion is vertically provided inside.

The bolt covering portion 4 serves to cover the surface of the bolts a and the like in the primary tightened state and to cover (mask) the marking liquid so as not to adhere to unnecessary portions.
It is important that the bolt covering portion 4 is formed along the contour formed by the side surfaces of the bolt a, the nut b, and the washer c in the primary tightened state and the surface of the joining member d on the lower surface of the washer c as viewed in the longitudinal section. . At this time, for example, as shown in FIG. 3 and FIG. 7 (A), it may be formed so as to cover all 360 degrees around the bolt a in the primary tightened state or the like, as shown in FIG. 7 (B). As shown, it may be formed so as to cover a part of the azimuth over a predetermined angle range with the slit 5 as the center. Moreover, it is arbitrary whether it forms so that the upper surface of the volt | bolt a may be coat | covered.
The bolt covering portion 4 can be formed, for example, by bending a plastic plate portion having an appropriate thickness, or plastic injection molding.

The slit 5 is formed as a linearly-extracted portion having an appropriate width continuously extending from the side surface of the bolt a through the side surface of the nut b and the washer c to the surface of the joining member d on the lower surface of the washer c. It is good.
Although the width | variety of the slit 5 can be set suitably, it is preferable to form in the width of 1 mm-10 mm, especially 2 mm-5 mm, for example.

As shown in FIG. 8A, the slit 5 can be formed with upright portions 11 that stand up along at least the peripheral edges of the slit 5.
When the standing part 11 is formed, the marking liquid ejected from the ejection port 9 enters the slit 5 while being guided by the standing part 11, and thus the standing part 11 is not formed. Compared to the above, the shape along the slit 5 can be adhered more clearly, and clearer marking can be applied.

Further, as shown in FIGS. 8A and 8B, the upright portion 11 is formed on the lower end periphery of the slit 5, and the lower portion of the slit 5 is formed so as to be surrounded by the upright portion 11. The weir 12 can be formed on the lower peripheral edge.
By forming the weir 12 in this way, the outer portion of the weir 12 at the bottom of the cover portion 7 to be described later can be used as the liquid storage portion 13, and the marking liquid injected into the cover portion 7 is stored in the liquid storage portion 13. The marking liquid can be prevented from dripping.

  Since the masking unit 2 is detachable from the aerosol mounting / injecting unit 3, it is necessary to prepare several types of shapes according to the type and size of the bolt, and use them by replacing them as appropriate. preferable.

(Aerosol mounting / jet unit 3)
As shown in FIG. 5, for example, the aerosol mounting / injecting unit 3 includes a marking liquid injection member 3A having a marking liquid injection port 9 and an aerosol mounting member 3B having an aerosol container B mounting unit 15. Then, the aerosol mounting member 3B can be configured to cover the marking liquid ejecting member 3A from the upper outer side and to be mounted so as to be slidable up and down.

  The marking liquid injection member 3A includes a cover part 7 surrounding the slit 5, a stem receiving part 8 for inserting and locking the stem part S of an aerosol container B filled with the marking liquid, and an injection for injecting the marking liquid. It can be formed with a flow passage portion 10 that communicates the mouth portion 9, the stem receiving portion 8, and the ejection opening portion 9.

  The cover part 7 plays a role of covering the marking liquid ejected from the aerosol container B so as not to be scattered around. In addition, as described above, it plays a role of preventing the marking liquid sprayed into the cover portion 7 from being accumulated and drooping.

  For example, as shown in FIG. 3, the cover portion 7 is formed in a bottomed cylindrical shape so as to form a space portion 6 that covers the entire masking portion 2. A part of the bottom cylindrical shape is notched, and the masking part 2 is formed to be attached to the notched part, and is provided with the masking part 2 so as to form a space part 6 surrounding the peripheral side surface, the bottom surface and the top surface. You can also.

The cover portion 7 is preferably formed so as to have a bottom surface portion, and is preferably formed so that the bottom portion of the cover portion 7 becomes the liquid storage portion 13.
Further, as shown in FIG. 5, the lower end portion of the cover portion 7 is bent in the inner horizontal direction to form the joining piece 16, while the lower end portion of the notched portion is bent in the outer horizontal direction to join the joining piece 17. Each of the joining piece 16 and the joining piece 17 can be formed so as to be screwed to the masking portion 2.

  For example, as shown in FIG. 5 and the like, the stem receiving portion 8 is provided with a stem insertion port 8b at the back of the conical opening 8a constricted at the back, and at the middle portion of the stem insertion port 8b. Can be formed so as to be locked by the stepped portion 8c when the stem S of the aerosol container B is inserted into the stem insertion port 8b. However, the stem receiving portion 8 can be arbitrarily designed as long as the stem S of the aerosol container B can be inserted and can be locked halfway.

In the cover part 7, the injection port part 9 injects the marking liquid from the front upper side of the stem 5 toward the diagonally lower side or from the front side of the stem 5 in the horizontal direction. Can be provided.
Although the structure of the injection port portion 9 is arbitrary, for example, as shown in FIG. 5, it is preferable that the injection port portion 9 can be detachably incorporated using a commercially available spray port of an aerosol container. When marking liquid is clogged in the injection port portion 9 or the flow passage portion 10 by using a commercially available aerosol container injection port, the injection port portion 9 is completely replaced, or the injection port portion 9 is removed and the flow passage is removed. The part 10 can be cleaned.

  The flow passage portion 10 is a flow path for communicating the stem receiving portion 8 and the injection port portion 9 with each other and guiding the air flow of the marking liquid injected from the stem receiving portion 8 to the injection port portion 9.

The aerosol mounting member 3B functions as a receiving port on which the upper part of the aerosol container B can be mounted, and includes a container mounting part 15 that receives the upper surface part of the aerosol container on a cylindrical upper surface part.
The aerosol mounting member 3B can be manufactured by molding plastic, for example.

  The structure of the container mounting portion 15 is arbitrary, and may be formed so that the upper portion of the aerosol container B can be mounted and fixed. For example, as shown in FIG. 5, the engagement lock portions 15 a and 15 b may be provided so that the caulking edges C and D of the aerosol container B can be fitted and the aerosol container B can be fixed.

  As shown in FIG. 5, the aerosol mounting member 3 </ b> B pushes down the aerosol container B by inserting the stem S of the aerosol container B into the stem receiving part 8 and fitting the upper part of the aerosol container B into the container mounting part 15. Then, the aerosol mounting member 3B itself is pushed down, and at the same time, the stem S is pressed so that the aerosol container B is in an injection state.

  For example, as shown in FIG. 9, the marking liquid ejecting member 3A and the aerosol mounting member 3B are provided with a locking projection 18 on the peripheral side surface of the marking liquid ejecting member 3A. A locking groove 19 is formed as a pull-out portion into which the locking protrusion 18 can be inserted, having a key shape from the lower edge of the side surface, that is, a vertical insertion portion 19a, a horizontal insertion portion 19b, and a vertical slide portion 19c. The aerosol mounting member 3B is coated on the upper side of the marking liquid injection member 3A from the outside so that the locking projection 18 of the marking liquid injection member 3A is inserted into the vertical insertion portion 19a of the locking groove 19 of the aerosol mounting member 3B. Then, if the aerosol mounting member 3B is rotated and the locking projection 18 is slid along the lateral insertion portion 19b, the locking projection 18 can move up and down in the vertical slide portion 19c. Because there can be moved up and down the aerosol mounting member 3B to the marking fluid ejection member 3A, and is configured to be able to by pressing the aerosol container B to the injection state.

  In addition, the aerosol mounting / injecting unit 3 includes the marking liquid injection member 3A having the marking liquid injection port 9 and the aerosol mounting member 3B having the container mounting unit 15 of the aerosol container B as described above. Without forming, for example, as shown in FIGS. 10 and 11, the cover 7, the stem receiving portion 8, the injection port 9, the flow passage portion 10, and the container mounting portion 15 may be formed as an integrally molded product. it can.

Moreover, as the aerosol container B, as shown in FIG. 12, a container having a screwing part D at the upper part can be adopted. For example, as shown in FIG. 12, when the aerosol container B having the root portion of the stem S as the screwing portion D is mounted, the screwing that can be screwed into the screwing portion D as shown in FIG. A receiving part 23 is preferably provided.
If formed in this way, as shown in FIG. 13, the aerosol container B is fitted to the aerosol mounting / injecting section 3 or the aerosol mounting member 3B by screwing the threaded portion D of the aerosol container B to the threaded receiving portion 23. The aerosol container B can be brought into an injection state by detachably connecting and fixing, for example, by pushing the aerosol mounting member 3B into the marking liquid injection member 3A.
If the aerosol container B is formed so as to be connected and fixed to the aerosol mounting / injecting portion 3 in this way, the connection does not come off even if it is turned upside down, thus preventing the risk of disconnection during work at high places. can do.

(Connecting structure of masking part 2 and aerosol mounting / injection part 3)
As a structure for detachably connecting the masking unit 2 and the aerosol mounting / injecting unit 3, for example, as shown in FIG. 5, positioning pins 20 are provided on the joint surfaces of the masking unit 2 and the aerosol mounting / injecting unit 3. Holes 21 and 22 are provided, the positioning pins 20 are inserted into the holes 21 and 22 to fix the joining positions, and the joining pieces 16 and 17 are screwed to attach the masking portion 2 and the aerosol. It can form so that the injection part 3 may be connected so that attachment or detachment is possible.
However, the connection structure between the masking unit 2 and the aerosol mounting / injecting unit 3 is not particularly limited, and any structure can be adopted. For example, the two may be bonded, or the masking portion 2 is provided with a guide groove in the shape of the mask, while the aerosol mounting / injecting portion 3 side is provided with a protrusion locking portion, and the protrusion engagement is provided in the guide groove. It can also be detachably joined by inserting and locking the stop.

  In addition, the masking unit 2 and the aerosol mounting / injecting unit 3 can be detachably connected, and the masking unit 2 and the aerosol mounting / injecting unit 3 can be integrally formed. Furthermore, the masking unit 2 and the aerosol mounting / injecting unit 3 may be configured not to be connected.

(work)
As shown in FIGS. 3 and 4, the marking tool 1 is configured such that, for example, the nut b (high-strength bolt a) is primarily tightened, and then the masking portion 2 is covered with the bolt a or the like in the primary tightened state. Then, the marking tool 1 is set, and the stem S of the aerosol container B filled with the marking liquid is inserted and pressed into the stem receiving portion 8 to bring the aerosol container B into an injection state. Then, the marking liquid is ejected from the marking liquid ejection port portion 9 into the cover portion 7. At this time, since the bolt covering portion 4 covers the side surfaces of the bolt a, the nut b and the washer c in the primary tightened state and the surface of the joining member d on the lower surface of the washer c, the marking liquid adheres only through the slit 5 and the slit 5 A clear marking can be applied to the shape.
After that, final tightening is performed using a high-strength bolt-specific tightening machine (for example, a shear wrench), the inspector visually observes the displacement of the marking, and the rotation amount (angle) of the nut b with respect to the bolt a is within a specified angle. A tightening completion visual inspection can be carried out on all bolts as to whether they are accommodated.
However, the usage method of this marking tool 1 is not limited.

In addition, as shown in FIG. 14, two nuts b and b may be piled up on one bolt a and fastened. In this case, one straight line M is drawn (marked) across the side surfaces of the two nuts b and b in the tightened state (finally tightened state), and the nut b is shifted by the deviation of the straight line M drawn on the side surface of each nut. , B may be detected.
The present invention can also cope with such bolt marking. That is, as shown in FIG. 15, the masking portion 2 includes the side surface of the bolt a, both side surfaces of two overlapping nuts b, b, the side surface of the washer c, and the bonding member surface d on the lower surface of the washer c. A bolt covering portion 4 covering all or a part of the bolt covering portion 4 and having a configuration in which a slit 5 is vertically provided in the bolt covering portion 4. It can be used as a marking tool used to detect slack.

It is the perspective view which showed the general example of the joining location in the case of bolting steel frame materials, such as a bridge pier, via joining plates, such as a steel plate. It is the perspective view which showed an example of the general bolt marking. It is the fragmentary sectional perspective view which showed an example of the aerosol type bolt marking tool of this invention. In FIG. 3, it is the principal part expanded sectional view which expanded and showed the part of the bolt coating | coated part. It is sectional drawing which showed an example of the aerosol type bolt marking tool of this invention. It is the perspective view which showed an example of the masking part. (A) (B) is the cross-sectional view which showed the structural example of the volt | bolt coating | coated part. (A) is the perspective view which showed an example of the standing part formed along the periphery of a slit, (B) shows an example of the masking part at the time of forming an standing part, and an example of the bottom part of an aerosol mounting | wearing / injection part. FIG. It is the side view which showed an example of the mounting structure of a marking liquid injection member and an aerosol mounting member. It is sectional drawing which showed the other example of the aerosol type bolt marking tool of this invention. It is sectional drawing which showed the further another example of the aerosol type bolt marking tool of this invention. It is the perspective view which showed an example of the upper surface part of an aerosol container. It is the fragmentary sectional view which showed the connection state of the upper part (a part of aerosol mounting and injection part) of the aerosol type bolt marking tool of this invention, and the aerosol container shown in FIG. It is the perspective view which showed the other example of the bolt marking. It is sectional drawing which showed the further another example of the aerosol type bolt marking tool of this invention.

Explanation of symbols

a bolt b nut c washer d joint member B aerosol container S stem portion D screwed portion 1 aerosol bolt marking tool 2 masking portion 3 aerosol mounting / injecting portion 3A marking liquid ejecting member 3B aerosol mounting member 4 bolt covering portion 5 slit 6 Space portion 7 Cover portion 8 Stem receiving portion 9 Marking liquid injection port portion 10 Marking liquid flow passage portion (flow passage portion)
DESCRIPTION OF SYMBOLS 11 Standing part 12 Weir 13 Liquid storage part 15 Container mounting part 16 Joining piece 17 Joining piece 18 Locking protrusion 19 Locking groove 20 Positioning pin 21 Hole 22 Hole 23 Screwing receiving part

Claims (6)

It has a bolt covering portion that covers all or a part of the bolt, nut, and washer along the contour formed by the side surfaces of the washer and the lower surface of the washer, and a slit is provided vertically in the bolt covering portion. A masking section,
At least a cover part surrounding the slit, a stem receiving part for inserting a stem part of an aerosol container filled with marking liquid, a marking liquid injection part provided in the cover part, and the stem receiving part and marking liquid injection An aerosol mounting / injecting part having a marking liquid flow passage part communicating with the mouth part,
Aerosol-type bolt marking tool.   The masking portion includes a bolt covering portion that covers all or part of the bolt along the contour formed by the side surface of the bolt, both side surfaces of the two overlapping nuts, the side surface of the washer, and the surface of the joining member on the lower surface of the washer. The aerosol-type bolt marking tool according to claim 1, further comprising a structure in which a slit is provided vertically in the bolt covering portion.   The aerosol bolt marking tool according to claim 1 or 2, wherein the masking part and the aerosol mounting / injecting part are detachably connected.   The aerosol bolt marking according to any one of claims 1 to 3, wherein the aerosol mounting / injecting portion includes a screw receiving portion capable of screwing a screw engaging portion provided on an upper surface portion of the aerosol container. Tools.   The aerosol-type bolt marking tool according to any one of claims 1 to 4, wherein standing parts are provided along the peripheral edges on both sides of the slit. The aerosol bolt marking tool according to any one of claims 1 to 5, wherein the cover part is provided with a bottom part to serve as a liquid storage part.

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