JPS63192522A - Method for fixing fitting body to deck plate and deck plate raising device and insert for deck plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for fixing various attachments such as inserts for attaching hanging objects to deck plates, keystone plates, etc., wiring boxes, etc., and a method for fixing various attachments such as a deck plate and a keystone plate. This invention relates to an insert for a deck plate.

[Conventional technology]

For example, to attach an insert to a thin iron plate such as a deck plate or a keystone plate, a hole is drilled using an electric drill, and the insert is driven into the hole and fixed. This method of drilling holes for inserts using an electric drill requires an electricity supply, and depending on the construction site, electricity may have to be supplied using a cord from a distant power source, and it may also be necessary to drill the holes. The cord had to be routed every time the opening location was changed, which was extremely troublesome.

Therefore, another method for making holes in thin iron plates without using an electric drill is to use a punching tool. This method uses a conical punch 7 as shown in FIG.
2 to the thin iron plate 74 with impact to punch out the hole 76. There is a problem in that the punched piece 78 remains over the entire circumference of 76.

[Problems to be Solved by the Invention] The present invention forms a spiral inclined surface around a cut hole cut into a deck plate, and uses this spiral inclined surface to attach the device to the deck plate. It was made for the purpose of fixing things by screwing them in.

Means for Solving Problem C] The method for fixing an object to the deck plate of the present invention is as follows:
A cut-and-cut hole is made in the deck plate, and a spiral inclined surface corresponding to the spiral shape of the fixing group screw provided on the attachment is formed around the cut-and-bore hole. By screwing the fixing group screw into the cut hole, the screw thread of the fixing group screw is brought into close contact with the spiral inclined surface, and the seat plate provided on the attachment is brought into close contact with the upper surface of the deck plate. The purpose of this is to fix an object to the plate.

In the deck plate cutting and raising device of the present invention, the tip surface of the cutting and raising tool body is inclined with respect to the nailing direction, and the tip of the cutting and raising tool body serves as a cutting tip, and The periphery of the distal end of the tool body is a cutting blade, which cuts and raises a spiral inclined surface corresponding to the helical shape of the fixing group screw provided on the attachment. and a nailing tool having a mounting part for mounting the cutting and raising tool on the nailing tool body, and a hammer slidably provided on a sliding guide provided on the nailing tool body. It consists of

The insert for a deck plate of the present invention is characterized in that a seat plate is provided in the lower part of the insert body, and a fixing screw is provided on the outer peripheral surface of the insert body located below the seat plate. .

〔Example〕

FIG. 1 shows an embodiment of a cutting and raising device for a deck plate according to the present invention.

This cutting and raising device is comprised of a cutting and raising tool AI and a nailing tool B for nailing the cutting and raising tool A onto a deck plate C.

As shown in FIGS. 3 to 6, the cutting and raising tool A1 has a cutting and raising tool main body 4 integrally provided with a holder 2. The cross section of the cutting tool main body 4 has a shape that is a combination of a semicircle and a square, as shown in FIG. The tip of the cutting tool main body 4 is cut off diagonally. For this reason, the tip surface 7 of the cutting tool main body 4 is inclined with respect to the striking direction Q, and the peripheral part of the tip surface 7 is the cutting blade 8,
It becomes.

As shown in FIGS. 11 and 12, the insert G
This is a configuration in which a seat Fi 38 is provided in the lower part of the insert body 62, and a fixing group screw 10 is provided on the outer peripheral surface of the insert body 62 located below the seat plate 38. Fix the insert G to the deck plate C using the screw IO. The cross-sectional shape of the fixing group screw 10 is not limited to a rectangular shape, but may be trapezoidal or triangular as shown in FIGS. 16 and 17, respectively.

As shown in FIG. 6, the diameter d of the semicircular cross section of the cutting tool main body 4 is the diameter d of the valley of the male fixing screw 10 provided in the insert G (see FIG. 12). The length of one side of the part with a rectangular cross section is d゛, and the length of the other side is slightly larger than that of the insert G.
The diameter D of the thread of the male fixing screw 10 (see FIG. 12) is 1/2. The diameter E' of the holder 2 is smaller than the diameter E of the seat plate 38 provided on the insert G.

Furthermore, a spiral inclined surface 12 corresponding to the threads of the male fixing screw 10 provided on the insert G is formed on the end surface of the holder 2 around the proximal end of the cutting and raising tool body 4.

If the fixing male screw 10 of the insert G is a right-handed screw, the spiral inclined surface 12 gradually becomes lower in the clockwise direction when the cutting tool main body 4 is facing upward. It's slanted like that. If the fixing male screw 10 of the inserter 1-G is a left-handed screw, the spiral inclined surface 12
The direction of inclination is opposite to the above.

In addition, the step of the spiral inclined surface 12 is P for one pitch when the male fixing screw 10 is a single thread (2P for two pitches when the male fixing screw 10 is a double thread),
The step portion is provided at a part of the corner of the portion having a rectangular cross section. In this way, the step part of the spiral inclined surface 12 is provided at a part of the corner of the part having a square cross section by cutting and cutting the hole 14 by hitting the cutting tool A against the deck plate C. This is to reduce the impact force when doing so.

A notch 16 is provided at the base end of the cutting and raising tool main body 4 so that the spiral inclined surface 12 can easily come into close contact with the deck plate c during nailing. Reference numeral 18 denotes a mounting male screw for mounting the cutting and raising tool A to the nailing tool B.

As shown in FIG. 1, the nailing tool B is provided with a female thread 22 for mounting on the lower end surface of the nailing tool main body 20, and a sliding guide rod 24 is attached to the nailing tool main body 2o. A hammer 26 is slidably fitted. Grips 3o and 32 are attached to each tip of the handle 28 attached to the sliding guide rod 24 and the hammer 26, respectively.

The male mounting screw 18 provided on the cutting tool A is screwed into the female mounting thread 22 provided on the lower end surface of the nailing tool main body 20, so that the mounting tool A is attached to the nailing tool main body 20.
, is installed.

In order to cut and form the hole 14 for fixing the insert G to the deck plate C using the large cutting device having such a configuration, as shown in FIG. While holding the tool body 4 perpendicularly to the deck plate C, apply the cutting tip 6 provided at the tip of the cutting and raising tool body 4 to the deck plate C, and in this state, use one hand to move the sliding guide rod. 24, and grasp the handle 32 at the end of the handle 28 attached to the hammer 26 with the other hand.

Then, when the hammer 26 lifted upward is dropped and struck against the upper end surface of the nailing tool main body 20, the cutting and raising tool main body 4 is hit against the deck plate C, and the hammering force is concentrated on the cutting tip 6, and this The partial deck plate C is cut and raised as shown in FIG. 7, and the cut and raised tongue piece 34 comes into close contact with the distal end surface 7.

Once cut and bent, the deck plate C is continuously cut and bent with a small force by the cutting blade 8 following the cross-sectional shape of the cutting tool main body 4, and the spiral shape formed on the end face of the holder 2 is cut and bent. The inclined surface 12 is impactfully struck against the deck plate C to form a cut hole 14, and this cut hole 1
A spiral inclined surface 36 corresponding to the spiral inclined surface 12 formed on the end surface of the holder 2 is formed on the periphery of the holder 4 and on the lower surface of the deck plate C. As shown in FIGS. 8 and 9, the cut and raised tongue piece 34 is cut and raised approximately 906 times so as to be in close contact with the side surface of the portion of the cutting and raising tool body 4 whose cross section is rectangular. .

Here, the spiral inclined surface 12 provided on the end surface of the holder 2 corresponds to the helical shape of the thread of the fixing male screw 10 provided on the insert G, so that it is approximately 9 in FIG.
F, , F, on the spiral inclined surface 36 whose positions differ by 0°
, F, from the upper surface of the deck plate C, respectively, is tI+t2+t3, (t3 tz
)=(tg t+ )=P/4 (see FIGS. 9 and 10).

Therefore, as shown in FIGS. 11 and 12, when the male fixing screw 10 is screwed into the cut hole 14 until the seat plate 38 of the insert G comes into close contact with the upper surface of the deck plate C,
The upper surface of the thread of this male fixing screw 10 is formed into a cut-and-raised hole 14.
It is in continuous and close contact with the spiral inclined surface 36 provided around the periphery of.

As a result, the seat plate 38 of the insert G and the fixing male screw 10
The deck plate C is sandwiched between the ridges, and the insert G is firmly fixed to the deck plate C.

Incidentally, when screwing the insert G, a part of the fixing male screw 10 comes into contact with the tongue piece 34, so that the insert G can be screwed into the cut-and-raised hole 14 in a stable posture.

Further, FIG. 2 shows another embodiment of the cutting and raising device for a deck plate according to the present invention.

The nailing tool B' of this embodiment has a cylindrical nailing tool main body 40 whose lower end is closed, and a female thread 22 for mounting is provided on the lower end surface of the nailing tool main body 40.
This is a sliding guide surface 44, and the hammer 42 is guided by this sliding guide surface 44 to slide in the vertical direction. A guide rod 46 is attached to the hammer 42,
This guide rod 46 is guided by a guide cover 48 attached to the upper end of the nailing tool main body 40 and slides up and down. Grips 52 and 54 are attached to each tip of the handle 50 attached to the guide rod 46 and the applicator body 40, respectively.

Further, another cutting tool A2 is shown in FIG. 13, and a cutting hole 14 formed in the deck plate C by this cutting tool A2 is shown in FIGS. 14 and 15. ing.

This cutting and raising tool A2 has a protrusion 56 provided in the driving direction Q on a portion having a semicircular cross section in order to make the cut even easier, and the tip of this protrusion 56 is made into a tip portion 58. be.

For this reason, the contact area between the deck plate C and the cutting and raising tool A2 at the beginning of cutting and raising becomes extremely small, so that the striking force is concentrated on the cutting tip portion 58 provided at the tip of the protrusion 56.

Therefore, it becomes easier to cut into the deck plate C, and the cut and raised holes 14 can be formed with a small striking force.

〔Effect of the invention〕

The method of fixing an attachment to the deck plate of the present invention is as follows:
The attachment can be firmly fixed to the deck plate by the simple operation of screwing the fixing male screw provided on the attachment into the cut-and-raised hole drilled in the deck plate.

Further, the deck plate cutting and raising device of the present invention can cut and raise holes for screwing in attachments such as inserts with a small hammering force, and can also cut and raise holes for screwing in attachments such as inserts. A spiral inclined surface for tightly fitting the threaded portion of the male fixing screw can be formed around the cut-and-raised hole at the same time as the cut-and-raised hole.

Further, the insert for a deck plate of the present invention can be easily fixed to a deck plate using a male fixing screw provided on the outer periphery of the insert main body, without incorporating a member for the sole purpose of fixing into the insert main body.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of one embodiment of the deck plate cutting and raising device of the present invention, FIG. 2 is a partially cutaway front view of another embodiment, and FIG. , FIG. 4 is a front view, FIG. 5 is a cross-sectional view, and FIG. 6 is a plan view for explaining the shape of the cutting tool main body 4. Figures 7 and 8 show cutting and raising tool A, respectively.
The initial and completed perspective views of the cut-and-raised holes 14 formed in the deck plate C by I, FIGS. Figure, 1st
1 and 12 are different cross-sectional views of the insert G screwed into the cut-out hole 14 and fixed therein, and FIG.
The figure is a perspective view of the cut-and-raise tool A2, and FIGS. 14 and 15 are perspective views of the initial and completed cutting and raising holes 14 in the deck plate C using the cut-and-raise tool A2, respectively. figure,
16 and 17 both show the insert body 62.
18(a) and 18(b) are views showing the state before and after a hole 76 is punched in a thin iron plate 74 with a conventional punch 72, respectively. The explanation of the symbols of the main parts is as follows. A1, A2: Cutting tool B: Nail tool C: Deck plate G: Insert (attachment) 2: Holder 4: Cutting tool body 6.58: Cutting tip 8: Cutting tool 10: For fixing Male thread 12: Spiral inclined surface provided on the cut-and-raise tool body 14: Cut-and-raise hole 20.40: Nail tool body 22: Female thread for mounting (installation part) 26.42: Hammer 24: Sliding guide rod ( Sliding guide part) 36: Spiral inclined surface 38 provided around the cut-and-raised hole Two seat plate 44: Sliding guide surface (Sliding guide part) 62: Insert body Patent applicant Mirai Kogyo Co., Ltd. Company Figure 16 Figure 18 (A) Figure 17 (B)

Claims (3)

[Claims] (1) Cut and cut holes in the deck plate, and form a spiral inclined surface around the cut and cut holes that corresponds to the spiral shape of the male fixing screw provided on the attachment. By screwing the fixed male screw into the cut hole, the screw thread of the male fixing screw is brought into close contact with the spiral sloped surface, and the seat plate provided on the attachment is brought into close contact with the upper surface of the deck plate, thereby removing the deck. A method for fixing an attachment to a deck plate, comprising fixing the attachment to the plate. (2) The tip surface of the cutting and raising tool body is inclined with respect to the nailing direction, and the tip of the cutting and raising tool body serves as a cutting tip, and the peripheral part of the tip surface of the cutting and raising tool body is a cutting and raising blade, and a spiral sloped surface corresponding to the spiral shape of a fixing male screw provided on an attachment is formed around the proximal end of the cutting and raising tool body; A deck comprising: a nailing tool having a mounting part for mounting the cut-and-raise tool on the nailing tool main body, and a hammer slidably provided on a sliding guide part provided on the nailing tool main body. Plate cutting device. (3) An insert for a deck plate, characterized in that a seat plate is provided in the lower part of the insert body, and a fixing male screw is provided on the outer peripheral surface of the insert body located below the seat plate.