JP2008279578A - Bolt fastening tool, and wall panel connecting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bolt fastening tool capable of feeding a bolt and a nut in a narrow space to fasten the bolt, and a wall panel connecting method using the same. <P>SOLUTION: The bolt fastening tool 1 comprises: a column 2 composed of a straight pipe as a shaft supporter; a shaft 3 passed in the column 2 rotatably and in an advancing/retracting manner in the axial direction; a head 4 integrally provided on a fore end of the shaft 3; a bolt attaching part 5 provided on the head 4; an extension body 10 mounted on the shaft 3 via a bracket 7 and a screw 8; and a nut attaching part 12 provided on an opposing part 11 of the extension part 10. The bolt fastening tool 1 with the bolt 15 and the nut 16 being attached thereto is inserted in a space on the back side of a wall panel 20B, the shaft 3 is advanced, and the bolt 15 is inserted in bolt insertion holes in a frame 21 and an L-shaped angle 25, and screwed into the nut 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a bolting tool, and more particularly, to a bolting tool suitable for performing a bolting operation in a narrow space such as behind a wall panel for a unit room. Moreover, this invention relates to the wall panel connection construction method using this bolting tool.

  When constructing a unit room such as a unit bathroom, wall panels may be erected along the building wall surface of the building, and the wall panels may be connected to each other or to the corner vertical angle. In this case, if the space between the wall panel and the casing wall surface is small, the connection operation using the bolts cannot be performed. Therefore, the wall panels are connected by a fitting method using various internal assembly fittings. When such an internally assembled metal fitting is used, there is an inconvenience that it cannot be corrected when the wall panel is warped.

As a tool for performing bolting work in a narrow space, a long hexagon bolt bit is described in Japanese Utility Model Laid-Open No. 5-56359.
5-56359

  The above hexagonal bolt bit of Japanese Utility Model Laid-Open No. 5-56359 cannot hold a nut. Therefore, it can be used only when a female screw is previously provided in the back of a narrow space or when the nut is fixed by welding or the like.

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide a bolting tool that can be bolted by feeding bolts and nuts into a narrow space, and a wall panel connecting method using the bolting tool. And

  The bolt tightening tool according to claim 1 has a rotatable shaft, and a bolt mounting portion provided at a tip of the shaft, into which a bolt head is fitted, so that the bolt is coaxial with the shaft. In a bolt tightening tool held by a bolt mounting portion, a shaft support body through which the shaft is inserted so as to be able to advance and retreat is connected to the shaft support body, and extends forward and extends from the bolt mounting portion. An extending body whose front end in the direction is a facing portion facing the bolt mounting portion, and a nut mounting portion provided on the facing portion, on which the nut is mounted from the side facing the bolt mounting portion. It is characterized by comprising.

  The bolt tightening tool according to claim 2 is characterized in that, in claim 1, the nut mounting portion has a magnet for holding the nut.

  According to a third aspect of the present invention, there is provided the bolt tightening tool according to the first or second aspect, wherein the shaft support is cylindrical.

  According to a fourth aspect of the present invention, there is provided a bolt tightening tool according to any one of the first to third aspects, wherein a lighting fixture is attached to the shaft support.

  The wall panel connecting method according to claim 5 is a wall panel connecting method for connecting the flange of a wall panel having a flange protruding in the rearward direction from the peripheral edge to a counterpart member, and a bolt insertion port for the flange and the counterpart member, respectively. A bolt is mounted on the bolt mounting portion of the bolt tightening tool according to any one of claims 1 to 4, the nut is mounted on the nut mounting portion, and the nut is mounted between the nut and the bolt. Place the bolting tool behind the wall panel so that the flange and the counterpart member are interposed, then advance the shaft to insert the bolt into the bolt insertion port and rotate the shaft to screw the bolt into the nut, then The bolting tool is extracted from behind the wall panel.

  In order to perform bolt tightening using the bolt tightening tool of the present invention, bolts and nuts are respectively mounted on the bolt mounting portion and the nut mounting portion.

  Then, the bolt tightening tool is inserted into a narrow space, and a connected member is interposed between the bolt and the nut. Next, the shaft is advanced, the bolt is inserted into the bolt insertion port provided in the connected member, and the tip of the bolt is applied to the nut. Prior to or after this, the shaft is rotated by an electric tool or the like, and the bolt is screwed into the nut. In this way, the to-be-connected members can be firmly connected to each other by tightening the bolts and nuts even in a narrow space.

  The wall panel connecting method of the present invention uses such a bolting tool, and even if the wall panel is warped, the warp can be corrected.

  If a magnet is provided in the nut mounting portion, the nut can be held firmly.

  By using a cylindrical shaft support, the bolting tool can be easily inserted into a narrow space.

  By providing a lighting fixture on the shaft support, the working efficiency in a narrow and dark space can be enhanced.

  Hereinafter, embodiments will be described with reference to the drawings.

  1 is a perspective view of a bolting tool according to an embodiment, FIG. 2 is a plan view of the bolting tool, FIG. 3 is a front view of the bolting tool, and FIGS. 4 to 8 are bolts. It is a horizontal sectional view which shows the wall panel connection construction method using a fastening tool.

  As shown in FIGS. 1 to 3, the bolting tool 1 includes a column 2 made of a straight tubular pipe as a shaft support, and a shaft that is inserted into the column 2 so as to be rotatable and reciprocated in the axial direction. 3, a head 4 integrally provided at the tip of the shaft 3, a bolt mounting portion 5 provided on the head 4, and an extension body attached to the shaft 3 via a bracket 7 and a screw 8. 10 and a nut mounting portion 12 provided on the facing portion 11 of the extension body 10.

  Although illustration is omitted, the rear end of the shaft 3 protrudes rearward from the rear end of the column 2, and a chuck for connection with the rotating shaft of the electric tool is provided at the rear end of the shaft 3.

  The tip of the shaft 3 protrudes from the tip of the column 2, and the head 4 is fixed to the tip of the shaft 3. The head 4 is a substantially cylindrical member coaxial with the shaft 3, and a bolt mounting portion 5 formed of a hexagonal recessed hole into which a hexagonal head portion 15 a of the bolt 15 is fitted is provided on the front end surface thereof. ing. The recessed hole of the bolt mounting portion 5 is provided coaxially with the shaft 3.

  An elastic pin (not shown) protrudes from the inner peripheral surface of the bolt mounting portion 5. This pin has a function of elastically contacting the side surface of the head 15 a of the bolt 15 inserted into the bolt mounting portion 5 and holding the bolt 15. A thin guide shaft portion projects from the tip of the bolt 15.

  The extending body 10 is an L-shaped member having a long plate portion 13 parallel to the column 2 and a short plate-shaped countering portion 11 standing upright from the tip of the long plate portion 13. The long plate portion 13 is fixed to the column 2 by the bracket 6 and the screw 7. The front end side of the long plate portion 13 extends forward from the front end of the head 4.

  The facing portion 11 connected to the tip of the long plate portion 13 is parallel to the tip surface of the head 4. The nut mounting portion 12 provided in the facing portion 11 is a circular concave hole. The nut 16 mounted on the nut mounting portion 12 is a seated nut having a hexagonal nut body 16a and a disk-shaped flange 16b whose diameter is increased from one end side of the nut body 16a.

  The diameter of the concave hole constituting the nut mounting portion 12 is slightly larger than the long diameter of the nut body 16a and smaller than the diameter of the flange 16b. A magnet 14 is provided on the back side of the nut mounting portion 12 and is configured to attract and hold the nut 16.

  In order to perform bolt tightening using the bolt tightening tool 1, the head 15 a of the bolt 15 is fitted and held in the bolt mounting portion 5, and the nut 16 is fitted and held in the nut mounting portion 12. The nut 16 is held such that its flange 16 b overlaps the peripheral edge of the recessed hole of the facing portion 11.

  Then, a connected member to be bolted is interposed between the bolt 15 and the nut 16. Next, the shaft 3 is pushed forward to advance, the bolt 15 is passed through the bolt insertion hole provided in the connected member, and the guide shaft portion at the tip of the bolt 15 is inserted into the nut 16. Thereafter, the electric tool is operated to rotate the shaft 3 and the bolt 15, and the bolt 15 is screwed into the nut 16. After the screwing is completed, the shaft 3 is retracted to separate the head 4 from the bolt 15, and the column 2 and the extension body 10 are advanced to separate the nut mounting portion 12 from the nut 16.

  By making the shaft 3 long, the connecting operation of the wall panel can be efficiently performed on the back side of the wall panel using this bolting tool. An example of the wall panel connecting operation will be described with reference to FIGS.

  In FIG. 4, each of the wall panels 20 (20A, 20B) is a tile panel, and is fixed to the frame-like frame 21 along the periphery of the wall panel 20 with screws and an adhesive on the front side of the frame 21. The frame 21 along the vertical side of the one wall panel 20 (20A) having the base plate 22 made of cement plate or the like and the tile 23 bonded to the base plate 22 has an L angle 25 in advance by a bolt 26. It is attached.

  This one wall panel 20A is erected on one side of a waterproof pan constituting a floor such as a unit bathroom. The wall panel 20B is erected on a side perpendicular to one side of the waterproof pan, and the vertical frame 21 is brought into contact with the L angle 25. A building frame wall (not shown) is in the vicinity of the wall panel 20B.

  The L angle 25 and the frame 21 are previously provided with bolt insertion holes at the same height. The L angle 25 and the frame 21 of the wall panel 20B are connected to the bolt insertion hole through the bolt 15 as follows.

  As shown in FIG. 4, bolts 15 and nuts 16 are respectively attached to the bolting tool 1. Further, the shaft 3 is sufficiently retracted. This bolting tool 1 is inserted into the space on the back side of the wall panel 20B, and then the facing part 11 is turned around to the back side of the L angle 25 as shown in FIG. As a result, the frame 21 and the L angle 25 are interposed between the bolt 15 and the nut 16.

  Next, as shown in FIG. 6, the shaft 3 is advanced, and the bolts 15 are passed through the bolt insertion holes of the frame 21 and the L angle 25 to be brought into contact with the nut 16. Next, the shaft 3 is rotated by the electric tool, and the bolt 15 is screwed into the nut 16.

  The nut 16 is initially held in the nut mounting portion 12 without being rotated by the attractive force and frictional force of the magnet 14. When the bolt 15 is strongly screwed into the nut 16, the nut 16 rotates together with the bolt 15. , Tight.

  Therefore, the power tool is stopped, the shaft 3 is moved backward as shown in FIG. 7, and the head 4 is moved away from the bolt 15. Next, the column 2 and the extension body 10 integrated with the column 2 are moved forward, the opposing portion 11 is separated from the nut 16, and the bolting tool 1 is slightly moved away from the back of the wall panel 20 </ b> B as shown in FIG. 8. Thereafter, the bolting tool 1 is taken out from the back side of the wall panel 20B.

  Thus, even if the space on the back side of the wall panel 20B is narrow, the bolt tightening tool 1 can be inserted into this space and the bolt tightening operation can be performed efficiently. Further, since the wall panels 20 are connected to each other with bolts, it is possible to correct the warp when the wall panel 20 is warped.

  The above embodiment is an example of the present invention, and the present invention may take forms other than those shown in the drawings.

  For example, a handle may be provided at the rear end of the shaft 3 in order to manually rotate the shaft 3.

  Further, in order to facilitate the bolting operation even in a dark space, a lighting fixture may be provided on the distal end side of the column 2 or the extension body 10.

It is a perspective view of the bolt fastening tool concerning an embodiment. It is a top view of the bolt fastening tool of FIG. It is a side view of the bolt fastening tool of FIG. It is a horizontal sectional view which shows the wall panel connection operation | work using the bolt fastening tool of FIG. It is a horizontal sectional view which shows the wall panel connection operation | work using the bolt fastening tool of FIG. It is a horizontal sectional view which shows the wall panel connection operation | work using the bolt fastening tool of FIG. It is a horizontal sectional view which shows the wall panel connection operation | work using the bolt fastening tool of FIG. It is a horizontal sectional view which shows the wall panel connection operation | work using the bolt fastening tool of FIG.

Explanation of symbols

1 Bolt tightening tool 2 Column (shaft support)
DESCRIPTION OF SYMBOLS 3 Shaft 4 Head 5 Bolt mounting part 10 Extension body 11 Opposite part 12 Nut mounting part 14 Magnet 15 Bolt 16 Nut 20 Wall panel 21 Frame 22 Base plate 23 Tile

Claims (5)

Bolt tightening having a rotatable shaft and a bolt mounting portion provided at the tip of the shaft, into which the bolt head fits, and held on the bolt mounting portion so that the bolt is coaxial with the shaft In the tool
A shaft support through which the shaft is inserted so as to be able to advance and retreat;
An extension body that is connected to the shaft support body, extends forward from the bolt mounting portion, and has a leading end in the extending direction that is a facing portion facing the bolt mounting portion;
A bolt tightening tool, comprising: a nut mounting portion provided on the facing portion, on which a nut is mounted from a side facing the bolt mounting portion.   The bolt tightening tool according to claim 1, wherein the nut mounting portion includes a magnet for holding the nut.   The bolting tool according to claim 1 or 2, wherein the shaft support is cylindrical.   The bolting tool according to any one of claims 1 to 3, wherein an illumination tool is attached to the shaft support. In the wall panel connecting method for connecting the flange of the wall panel having a flange protruding in the rearward direction from the peripheral edge to the counterpart member,
Bolt insertion holes are provided in the flange and the counterpart member,
A bolt is mounted on the bolt mounting portion of the bolt tightening tool according to any one of claims 1 to 4, and a nut is mounted on the nut mounting portion.
A bolting tool is arranged behind the wall panel so that the flange and the counterpart member are interposed between the nut and the bolt,
Then, the shaft is advanced to cause the bolt to pass through the bolt insertion port, and the shaft is rotated to screw the bolt into the nut, and then the bolting tool is pulled out from behind the wall panel.

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