JP3126481U - One-touch marking tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide bolts, nuts, washers, joint steel materials in a state in which bolts and nuts are primarily tightened in order to enable visual inspection to confirm that final fastening has been properly performed when steel members are joined to each other by bolt joining. Providing construction aids for marking linear marks across the surface.
A marker pen portion 6 having a marker core 7 and an introduction hole 11 into which the marker core can be inserted in the center of the head and a female-shaped recess capable of storing bolts, nuts and washers, and A marking tool is used that includes a socket portion 8 in which an ink-impregnated strip 10 having a shape corresponding to a mark along the axis of the bolt is fixed to an inner wall surface of a female die 12 corresponding to a corner of a nut.
[Selection] Figure 1

Description

In this device, when steel members are joined to each other by bolt joining, after the nut is primarily fastened to the bolt, a mark for final fastening is placed from the end of the bolt (the tip of the high strength bolt) to the nut,
The present invention relates to a construction assisting tool used for accurately attaching a washer and a joining portion assisting steel plate (hereinafter referred to as an assisting member) to the surface.

Steel frames are constructed by extending the structure by sequentially joining the steel members, or structures such as steel towers and bridges, or steel members are joined together to construct a steel frame, and a precast concrete plate is attached to this to build the frame In a dry construction method building or the like, a bolt joint for joining steel members to each other by a large number of bolts and nuts arranged two-dimensionally is widely used.

Conventionally, the procedure for assembling the joint of the bolt joint is performed as follows. First, a steel member having a bolt hole drilled in advance at a predetermined position and the steel member are accurately positioned and arranged with respect to the direction in which they are joined together. These members are placed on both side surfaces of the joint, and these members are temporarily fixed by manually tightening with a spanner or the like using temporary bolts and nuts. The number of temporary bolts to be inserted into the bolt holes is 2 or more, and 1/3 or more of the number of bolt holes is required. Next, each of the temporary bolts is replaced with the main bolt one by one, and a washer, a bolt and a nut are assembled and hand-tightened with a spanner or the like. By repeating this sequentially, all the temporary bolts of the joint are replaced with the main bolts.

Next, all the main bolts arranged in the joint portion are primarily tightened using a torque wrench dedicated to primary tightening. After completion of the primary tightening, conventionally, a straight mark extending over the surface of the steel member around the bolt, nut, washer, and washer (or the auxiliary member surface if an auxiliary member is used) is hand-drawn for each bolt using a marker pen. FIG. 4 is a perspective view showing a state where a mark which is a subject of the present invention is attached. It is necessary to perform this marking work on the nuts and washers assembled to all the bolts arranged in the joints, and consequently, all bolts of the bolt joints generated in the building or structure. Will be enormous.

After completing the marking of the joint, use a shear wrench and tighten the nut to the rotation angle (approximately 4 o'clock direction with a watch hand) that gives the specified tightening force to each steel member. The tip (pin tail) of the part is damaged, and the final tightening of this bolt is completed. The inspection that the final tightening has been properly performed is performed by visual confirmation that the angle formed by the mark attached to the auxiliary member and the bolt and the mark attached to the nut is within the appropriate range of the rotation angle. .

In the conventional marking method, a single-line mark is hand-drawn using a marker pen on a bolt arranged in a densely arranged manner at the connecting portion. Therefore, skill and considerable work time are required for accurate marking. . In addition, the amount of marking work per construction site is enormous, and a dramatic improvement in work efficiency is required.

In addition, the joint is located at a position where it is difficult for the operator to maintain the working posture, for example, the underside of a building beam or a bridge girder, a surface located outward from the operator's standpoint, or an overhanging skew. Many of them are arranged on a surface or the like, and the conventional marking method consumes labor of the worker remarkably, and an epoch-making method capable of accurately marking by a simple operation is required.

In response to such a demand from the industry, a stamp type marking function has been proposed (for example, Japanese Patent Application Laid-Open No. 2004-284004). This is provided with a cylinder part and a piston part that are fitted to a central axis perpendicular to the longitudinal direction of the arm, and a plurality of marker shafts are oscillated and pushed out on the bottom side of the piston part, so that dot marks are formed. This is a function mounted on a torque wrench with a marking function configured to stamp a nut or a joining member. However, it is difficult for the operator to visually observe the rotation angle during the final tightening operation by impressing such a dotted mark.
It is not a mark that is easy to see at the time of inspection, and does not sufficiently meet the above requirements.

As another proposal, there is 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 (Japanese Patent Application Laid-Open No. 2-126)
006-136994). However, with this technology, the rod marker only moves up and down the socket core, and if there is a step between the bolt and nut after the primary tightening, especially when the mark is stamped only on the tip of the high strength bolt, It is difficult to carry out marking that makes it easy to visually check the rotation angle after final tightening.
JP 2004-284004 A JP 2006-136994 A

The problem to be solved in the present invention is that the bolts and nuts are temporarily tightened so that the final tightening can be visually inspected when the steel members are joined together by bolt joining. It is an object of the present invention to provide a construction auxiliary tool for easily attaching an accurate linear mark over the surface of a joint steel material around a bolt, a nut, a washer, and a washer.

In addition, accurate marking can be performed without relying on skilled workers, and it is possible to process a huge amount of work in a short time by dramatically improving work efficiency, and it is easy to avoid consuming labor of workers. It is to provide an epoch-making construction support tool that enables accurate marking with one-touch operation, and thereby breaks the limits of construction output.

According to the first aspect of the present invention, the marker pen portion provided with the marker core at the center of the top of the flexible container containing the ink or the filling impregnated with the ink, and the introduction capable of inserting the marker core at the center of the head Washer peripheral steel member surface from the end of the bolt (tip when high strength bolt is used) with a female-shaped recess that has a hole and can accommodate a bolt, nut, and washer, and along the axis of the bolt ( A socket part in which an ink-impregnated belt-like body having a shape corresponding to a linear mark extending to the auxiliary member surface when the auxiliary member steel plate is used is fixed to an inner surface corresponding to a corner of the bolt, and the marker core By using a one-touch type marking tool characterized in that the top part of the marker pen part and the head part of the socket part are combined in a state of being inserted into the introduction hole. It is determined.

According to the second aspect of the present invention, the marker pen portion provided with a marker core at the center of the top of the hard container for storing the ink or the filling impregnated with the ink, and the introduction hole through which the marker core can be inserted at the center of the head And a female-shaped recess that can accommodate bolts, nuts, and washers, and from the ends of the bolts along the axis of the bolts to the washer peripheral steel member surface (the surface of the auxiliary member if an auxiliary member steel plate is used) ) And the marker pen portion so that the marker core can be inserted into the introduction hole. The above-mentioned problem is solved by using a one-touch type marking tool characterized by including a hollow elastic body part that joins the top part of the socket part and the head part of the socket part.

The marking tool according to the present invention is provided with a socket part provided with a belt-like body impregnated with ink on the inner surface corresponding to the corner of the bolt, and this socket part accommodates the bolt, nut and washer after the primary tightening. Since the female-shaped concave portion that can be used is provided, the mark can be accurately positioned and marked by a so-called one-touch operation in which the bolt after the primary tightening is inserted into the socket portion.

In the marking tool according to the present invention, in the concave portion of the socket part, a belt-like body impregnated with ink is fixed to the inner surface corresponding to the corner of the bolt so as to be along the axis of the bolt. Since it has a length from the end to the washer periphery, the end of the bolt can be obtained by pinching the flexible marker pen with a finger or by applying pressure to the hard marker pen. A straight mark can be attached from the nut to the auxiliary steel plate around the washer through the nut and washer. The mark is straight and can be confirmed without observing the rotation angle of final fastening.

The marking tool according to the present invention has a simple overall structure, and it can be said that it is preferable to particularly increase the ink impregnation rate with respect to the filler in the marker pen portion. It is similar to ink or brush pen and is easy to produce commercially.

In addition, since the socket part according to the present invention is also simple in structure and low in manufacturing cost, a set of socket parts manufactured according to the size of several nuts generally used for construction in accordance with the size of the female concave part. It is also possible to replace one marker pen part and share it. Since the structure of the socket is very simple, it is difficult to break down even after repeated use over a long period of time.

FIG. 1 illustrates a marking tool according to the present invention. FIG. 1 (a) shows a longitudinal section of the marking tool, and shows the external appearance of a bolt 1 and a nut 3 in a state of covering the so-called vertical end face of the tool. ing. At the end of the primary tightening, the head of the high-strength bolt 1 has a tip 2 (also referred to as a pin tail), and the socket portion 8 has a washer 4 and an auxiliary member steel plate surface 5 around the washer from the top surface of the tip (for convenience of description). , Hereinafter referred to as a peripheral steel member 5), a female concave portion is formed, the portion corresponding to the chip and the subsequent bolt is cylindrical, and the female portion 12 corresponding to the nut is a hexagonal column. The portion corresponding to the washer and the portion corresponding to the peripheral steel member surface have a short cylindrical shape.

An introduction hole 11 for inserting the marker core 7 is opened at the center of the head of the socket portion 8, and an insertion portion 9 for coupling the marker pen portion 6 to the socket portion 8 is provided outside the head.
A felt (ink-impregnated belt 10) having a shape corresponding to a linear mark extending from the center of the tip 2 to the washer 4 and the washer peripheral steel member 5 along the axis of the bolt is stopped on the inner surface of the recess. I wear it. However, this ink-impregnated belt-like body is bonded to the inner surface along the portion corresponding to the corner of the nut of the hexagonal column female mold 12 or a groove carved on the surface so that the cross section of this strip can be seen in FIG. It is fastened to fit.

FIG. 4 is a cross-sectional view showing details of an embodiment in which the ink-impregnated strip 10 is fixed to the inner wall of the socket. Although the felt may be adhered to the inner wall of the socket with an adhesive, the fastening mode shown in the figure is used especially at the corner of the nut of the female hexagonal column 12 in order to prevent the felt 10 from being displaced during use of the marking tool. A belt-like groove 13 is carved in a corresponding part, and the felt 10 is fitted into the groove 13 and stopped.

When the marker pen portion 6 is inserted into the insertion portion 9 so that the marker core 7 is inserted into the introduction hole 11 in FIG. 1A, the ink in the marker pen soaks into the felt 10 in contact with the marker core 7 and the washer periphery. The steel frame material 5 is reached and marking is completed. In the present invention, in order to increase the speed at which the ink penetrates the felt, a flexible material such as a polyvinyl chloride bottle or a plastic bottle is used so that the ink can be pushed out by strongly picking the container wall of the marker pen 6 with a finger. Made of synthetic resin.

FIG. 1B is a bottom view of the marking tool according to the present invention, and shows an ink-impregnated strip 10.
It can be seen that (the felt in this figure) is fixed to the inner surface of the concave portion of the socket portion 8 from the vicinity of the center of the introduction hole 11 to the steel frame 5 at the periphery of the washer. It is preferable that the tip of the felt is extended to the entire diameter of the introduction hole 11 because it is advantageous for ink penetration.

In addition to the felt described above, materials used for the ink-impregnated belt 10 include woven fabric, synthetic fiber nonwoven fabric, animal hair solidified in a brush shape, natural sponge, soft high-foam polyethylene, soft foam polyurethane, etc. Sponge-like material. Of these, felts and synthetic fiber nonwoven fabrics are particularly preferred because the fibers lead to ink penetration.

FIG. 5 is a perspective view of the mark 14 attached to the bolt and nut using the marking tool according to the present invention before the final tightening. As shown in the figure, when the mark is attached to the steel frame member in a straight line, if there is any co-rotation of the bolt by the final tightening, it can be clearly understood and the effect of correcting the rotational angle deviation can be obtained. Bolts and nuts that have not been fully tightened or bolts and nuts that have not been fully tightened can be seen at a glance.

When using the marking tool according to the present invention, insert the marker pen portion 6 into the insertion portion 9 and cover the bolt / nut to be marked with the hexagonal column female die 12 of the socket portion so that the socket portion 8 When it is pressed until it abuts against the steel frame and the flexible body portion of the marker pen portion 6 is strongly picked with a finger, the ink penetrates the felt quickly and a mark is given. When not in use, the marker pen part is removed from the socket part and a cap (see 17 in FIG. 3) is put on the marker pen part.

FIG. 2 is a longitudinal sectional view illustrating another embodiment according to the present invention. The marker pen portion 6 is a hollow elastic body portion with the marker core 7 inserted into the introduction hole 11 in the head portion of the socket portion 8. 15 is hermetically fixed to the socket part 8 via 15. The hollow elastic body portion 15 is compressed when a pressing force is applied in the axial direction, and the marker core 7 comes into contact with the ink-impregnated belt-like body 10 at the head of the socket portion. When the pressure is released, the hollow elastic body portion 15 is restored to its original shape by elasticity, and the marker core is detached from the introduction hole 11 of the socket portion head.

In this embodiment, the container body portion of the marker pen portion 6 may be hard like the magic ink or the like normally used as a daily necessities. When not in use, a cap 17 (see FIG. 3) made of plastic or the like is put on the opening on the bottom surface of the socket part while the marker pen part 6, the hollow elastic body part 15 and the socket part 8 are fixed. As a member used for the hollow elastic body portion 15,
Examples thereof include a coil spring formed by winding a wire, a bamboo spring formed by winding a band such as a spring, a bellows spring manufactured by coating a coil spring with a plastic film, and a plastic bellows.

When using the marking tool according to the present invention, the force for pressing the bolt / nut to be marked into the socket portion 8 and the force for pressing the marker pen portion 6 against the socket portion 8 so that the ink penetrates the felt Has the advantage that the working efficiency is improved because the direction is the same and the strength is different.

FIG. 3 is an exploded longitudinal sectional view showing an improved version of the embodiment including the hollow elastic body portion. As shown, the marker core 7 is covered with a notched cylindrical core cover 16 except for the portion that contacts the felt 10. The core cover 16 prevents the ink from dripping from the marker core 7 and adhering to the outside of the introduction hole 11 at the head of the socket portion 8. By providing the core cover 16, the marker pen unit 6 is directly filled with ink without a filler so that the marker pen unit 6
It is possible to increase the penetration speed of the ink into the felt 10.

Since the marking tool according to the present invention has a simple structure and can be manufactured at a low cost, it can be easily spread to construction sites throughout the country. Moreover, since the method of use is simple and skill is not required, it can contribute to the increase of the employment opportunity of unskilled workers.

By using the marking tool according to the present invention, it is difficult for an operator to maintain a working posture, for example, a lower surface of a beam of a building or a bridge girder, a surface positioned outward from the operator's standpoint, or Since the safety at the time of marking work at a joint portion arranged on an overhanging slanted surface or the like is remarkably enhanced, it is highly likely to be widely used in construction sites.

(A) It is a longitudinal cross-sectional view which illustrates the marking tool which concerns on this invention. (B) It is a lower cross-sectional view of the marking tool. It is a longitudinal cross-sectional view which illustrates another embodiment of the marking tool which concerns on this invention. FIG. 6 is an exploded view of a longitudinal section illustrating still another embodiment of a marking tool according to the present invention. It is a cross-sectional view showing an embodiment of the details of fixing the ink-impregnated belt-like body to the socket part of the marking tool according to the present invention. It is a perspective view of the mark attached | subjected by the marking tool which concerns on this invention.

Explanation of symbols

1 bolt 2 tip (pin tail)
3 Nut 4 Washer
5 Peripheral steel member (Washer peripheral part)
6 Marker pen part 7 Marker core 8 Socket part 9 Insertion part 10 Ink-impregnated belt (felt)
11 Introduction hole 12 Female (hexagonal column)
13 Female Groove 14 Mark 15 Hollow Elastic Body 16 Core Cover (Sheath)
17 cap

Claims (5)

A marker pen portion provided with a marker core at the center of the top of a flexible container containing ink or a filling impregnated with ink;
A washer-peripheral steel member having an introduction hole through which the marker core can be inserted in the center of the head, a female-shaped recess capable of accommodating a bolt, nut, and washer, and from the end of the bolt so as to be along the axis of the bolt. Including a socket portion that is fixed to an inner surface corresponding to a corner of the nut with an ink-impregnated belt-like body having a shape corresponding to a linear mark extending to
A marking tool characterized in that the top of the marker pen portion and the head of the socket portion are joined in a state where the marker core is inserted into the introduction hole. A marker pen portion provided with a marker core at the center of the top of a rigid container containing ink or a filling impregnated with ink;
A washer-peripheral steel member having an introduction hole through which the marker core can be inserted in the center of the head, a female-shaped recess capable of accommodating a bolt, nut, and washer, and from the end of the bolt so as to be along the axis of the bolt. A socket part in which an ink-impregnated belt-like body having a shape corresponding to the linear mark leading to the inner surface corresponding to the corner of the nut is fixed;
A hollow elastic body part that joins the top part of the marker pen part and the head part of the socket part so that the marker core can be inserted into the introduction hole;
A marking tool comprising: 2. The material of the ink-impregnated belt is felt, woven fabric, synthetic fiber nonwoven fabric, animal hair solidified in a brush shape, natural sponge, or soft, highly foamed polyethylene or soft foamed polyurethane sponge. Or the marking tool described in 2 3. The marking tool according to claim 2, wherein the marker core includes a core cover that covers a peripheral edge other than a portion that contacts the ink-impregnated belt-like body. The marking tool according to claim 2, 3 or 4, wherein the member of the hollow elastic body portion is a coil spring, a bamboo spring, a bellows spring, or a plastic bellows.

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