JP2913154B2 - Corrugated plate mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus for mounting a corrugated sheet.

[0002]

2. Description of the Related Art Conventionally, various types of corrugated sheets, such as those made of iron plate, slate, and synthetic resin, have been provided. However, when they are used as roofing materials or wall materials, they are fixed to form a frame. In a state where the corrugated sheet is superimposed on the member, a seat plate having a substantially mountain-shaped cross section is attached to the crest of the corrugated sheet via a packing, and a screw body with a head is penetrated through the seat plate, the packing and the corrugated sheet, and fixed. Screwing into members has been performed.

[0003]

According to the prior art, when the screw body is screwed in, the packing is compressed between the crests of the corrugated sheet and the seat plate to provide a water-tight seal, but the thickness of the compressed packing is reduced. Correspondingly, there is a gap between the peripheral edge of the seat plate and the corrugated plate. Therefore, the corrugated sheet cannot be held along substantially the entire circumference of the seat plate, and the holding force of the corrugated sheet is not excellent. In addition, if the above-mentioned gap is provided at the peripheral edge of the seat plate, dust is clogged in the gap and flows out in rainy weather, and the surface of the corrugated sheet is soiled, and dead leaves and other foreign matter are caught in the gap.

Further, in the case of the prior art in which the packing is simply compressed between the crests of the corrugated sheet and the seat plate, the packing does not fit well, and the peripheral edge of the packing is turned up or unevenly compressed, and deteriorates quickly to deteriorate elasticity. Loses its properties and produces causes such as rain leaks. In particular, as described above, a gap is formed between the peripheral portion of the seat plate and the corrugated plate, and if the peripheral portion of the seat plate is in a so-called floating state, the seat plate slightly rotates at the end of the screwing of the screw body, Since the plate is not displaced along the crest of the corrugated plate, the packing is also compressed in a twisted state and is hardly uniformly compressed.

Furthermore, when screwing the screw body into the fixing member, since the operator has conventionally relied on the feeling, there is a risk of excessive screwing, and the corrugated plate may be deformed together with the seat plate, or the corrugated plate may be cracked. There are problems that arise.

[0006]

Means for Solving the Problems The present invention provides a corrugated sheet mounting apparatus which solves the above-mentioned problems, and the first means for the corrugated sheet mounting apparatus is a corrugated sheet 4 superposed on a fixing member 17. And a seat plate 1 having a substantially mountain-shaped cross-section, which is attached to the crest portion 4a via a packing 2, and a headed screw body 3 screwed into the fixing member 17 through the seat plate 1, the packing 2, and the corrugated plate 4. In the corrugated plate mounting device configured to compress the packing 2 between the seat plate 1 and the corrugated plate 4, the screw body 3 is provided with a tapping screw thread on a shank connected to a drill portion 12 provided at a tip end. 13 to form a self-drilling screw, and
In a state where the peripheral portion 5 of the seat plate 1 is screwed into the abutment 7 so as to abut against the crest of the corrugated plate 4, the shank is provided with a stopper portion 14 which faces the fixing member 17 and prevents the screw body 3 from advancing.
A neck portion 16 is provided between the stopper portion 14 and the head portion 11, and the stopper portion 14 is formed to have a larger diameter than the tapping thread 13 and has a spiral direction opposite to the tapping thread 13. The screw body 3 is inserted through the insertion hole 8 of the seat plate 1 and the center hole 9 of the packing 2, and the seat plate 1 is brought into contact with the head 11 of the screw body 3. At the same time, the center hole 9 of the packing 2 is inserted into the neck 1 with the peripheral edge of the packing 2 facing the inner surface of the seat plate 1.
6 and the outer periphery of the reverse thread 15 of the stopper portion 14 so that the seat plate 1, the packing 2 and the screw body 3 are elastically attached.
Is set in a combination state.

[0007] The seat plate 1 is provided along the peak of the corrugated plate 4.
In the peripheral portion 5 in contact with the region surrounded by the peripheral portion 5
Inflate upward so as to form a gap with corrugated sheet 4
Lower bulge 6 and a region surrounded by the lower bulge 6
At the top and swelled up
A screw body comprising an upper bulging portion 7 having a through hole 8 formed therein.
3 is screwed into the fixing member 17, and the peripheral portion 5 of the seat plate 1 is corrugated.
The upper bulging portion 7 is brought into contact with the upper
Press-in chamber for press-fitting the packing 2 compressed between the plates 4
And between the lower bulge 6 and the corrugated sheet 4
Accepts the peripheral part of packing 2 that protrudes from the press-fitting chamber
Preferably, a receiving chamber is formed .

The packing 2 is formed in an annular disk-like body.
Foamed elastic body and non-foamed layers on both sides
Preferably, 10 is formed .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, the corrugated plate attaching device comprises a seat plate 1, a packing 2, and a screw body 3.

The seat plate 1 is formed, for example, by pressing a metal plate, preferably a stainless steel plate.
The section is formed to have a substantially mountain shape so that it can be attached along a mountain portion 4a of a corrugated plate 4 (shown in FIG. 2A) described later. Preferably, the corrugated plate 4 has a cross-sectional shape like a chevron formed by an arc curve extending from the crest 4a to the valley 4b.

The seat plate 1 has a peripheral portion 5 abutting along the valley portion 4b from the peak portion 4a of the corrugated plate 4, and a gap with the corrugated plate 4 in a region surrounded by the peripheral portion 5. A lower bulging portion 6 bulged upward, and an upper bulging portion 7 bulged further upward in a region surrounded by the lower bulging portion 6. The top of the upper bulging portion 7 is made substantially flat. At the same time, a long insertion hole 8 is formed at the top.

The packing 2 is made of a foamed elastic body formed in an annular disk-shaped body having a hole 9 in the center. For example, it is formed by foaming a rubber material such as natural rubber or synthetic rubber, and has a thick disk-like donut shape. And
Thin non-foamed layers 10 and 10 are formed on both sides of the packing 2. The non-foamed layers 10, 10 can be easily formed by baking the front and back surfaces of a disc-shaped foamed elastic body. Therefore, the non-foamed layers 10 and 10 on the front and back surfaces are relatively hardened as compared with the soft foamed portion sandwiched between the non-foamed layers 10 and 10.

The screw body 3 has a shank extending from the head 11, and forms a drill portion 12 at the tip of the shank, and forms a self-drilling screw in which a tapping thread 13 connected to the drill portion 12 is formed.

A stopper portion 14 is formed at a shank portion connected to the tapping screw thread 13. The stopper portion 14 has a larger diameter than the tapping screw thread 13 and has a larger diameter. And a reverse screw thread 15 formed in a direction opposite to the spiral direction. The head 11 of the screw body 3 forms a seated head as shown in the figure, and the shank between the head 11 and the stopper 14 forms a blank neck 16 having no thread.

[0016] Such a corrugated plate mounting device, prior to use, as shown in FIG. 1, the allowed to insertion of the threaded body 3 into the insertion hole 8 of the seat plate 1, the stopper from the neck portion 16 of the threaded body 3
By externally inserting the packing 2 over the reverse thread 15 of the portion 14 , the seat plate 1, the packing 2, and the screw body 3 are set in a combined state. At this time, the inner diameter of the hole 9 of the packing 2 is formed smaller than the outer diameter of the neck 16 of the screw body 3, and the shank of the screw body 3
And the packing 2 is inserted into the neck 1.
6 and the reverse thread 15 .

The operation of attaching the corrugated sheet 4 based on the corrugated sheet attaching apparatus of the above embodiment will be described. As shown in FIG. 2A, the corrugated sheet 4 is superimposed on a fixing member 17 constituting a frame such as a steel frame. In the squeezed state, the screw 3
Screw. That is, the worker holds the seat plate 1 while
A rotary tool such as an electric screwdriver may be engaged with the head 11 of the screw body 3 to drive and rotate the screw body 3. Crest 4 of corrugated sheet 4
If a pilot hole is previously formed in a, the drill portion 12 and the tapping screw thread 13 pass through the pilot hole while rotating freely, and subsequently, the reverse screw thread 15 passes while cutting the pilot hole. On the other hand, even when a prepared hole is not formed in the crest portion 4a of the corrugated plate 4, the drill portion 12 pierces the crest portion 4a and the tapping screw thread 13 passes while cutting the perforation, and the reverse screw thread continues. 15 pass through the perforations while further cutting.

When the tip of the screw body 3 reaches the fixing member 17, the drill portion 12 pierces the fixing member 17, and the tapping screw thread 13 taps the perforation to form the tapping hole 18 while forming the tapping hole 18. Enter 17. As shown in FIG. 2A, when the packing 2 is compressed and the peripheral portion 5 of the seat plate 1 abuts along the surface of the corrugated plate 4, the stopper portion 14 provided with the reverse thread 15 is fixed to the fixing member. 17 and stops the screw body 3 from advancing. That is, the reverse thread 1
The peak diameter of No. 5 is larger than the peak diameter of the tapping thread 13, so that it does not enter the tapping hole 18. At this time, the screw body 3 receives the driving torque until the operator stops the rotating tool, and when a thrust force is applied by pressing the rotating tool, the tapping hole 18 is formed by the lower edge of the stopper portion 14. And try to enter. However, since the reverse screw thread 15 provided on the stopper portion 14 forms a reverse screw having a spiral direction opposite to the tapping screw thread 13, the reverse screw thread 15 has a tapping hole. When the screw 18 slightly enters, a reverse thrust force is generated in the screw body 3 by the reverse thread 15. That is, in this state, the screw body 3
Since a forward thrust force generated by the tapping thread 13 and a backward thrust force generated by the reverse thread 15 are generated, the mutually opposite thrust forces cancel each other, and the screw 3
Preferably prevents further advancement.

For this reason, the screw body 3 includes the tapping screw 1
After moving forward while forming the tapping hole 18, the stopper suddenly stops moving at the moment when the stopper portion 14 provided with the reverse thread 15 faces the tapping hole 18, and the operator senses this change. Then, the driving force of the rotary tool may be stopped.

Therefore, the stopper portion 14 is provided with the tapping hole 1.
8, in a state where the screw body 3 is stopped, the screw body 3 presses the head 11 against the top surface of the upper bulging portion 7,
The seat plate 1 abuts the peripheral portion 5 along the surface of the corrugated plate 4, and compresses the packing 2 between the seat plate 1 and the crests 4 a of the corrugated plate 4.

As shown in FIG. 2A, the compressed packing 2 is press-fitted into a press-fitting chamber formed between the upper bulging portion 7 and the corrugated plate 4, and the neck portion 16 of the screw body 3 and the upper bulging portion. 7 is sealed in a watertight manner. The peripheral portion of the packing 2 protruding from the press-fitting chamber is received in the receiving chamber 6 formed between the lower bulging portion 6 and the corrugated sheet 4, and the lower bulging portion 6 is received.
And the corrugated plate 4 are sealed in a watertight manner.

By the way, as shown in FIG. 1, the combined body of the seat plate 1, the packing 2, and the screw body 3 prior to the mounting operation is
The center hole 9 of the packing 2 is elastically attached to the neck 16 of the screw body 3 and the reverse thread 15 of the stopper section 14. Therefore, in this state, the seat plate 1 is gripped, and the screw
When the packing 2 is advanced to the corrugated plate 4 and the fixing member 17 while being driven and rotated by the rotating tool, the packing 2 moves from the position where it is elastically attached to the outer periphery of the rotating reverse screw thread 15 as shown in FIG. (a), the head of the outer periphery of the neck portion 16 1
Moved towards 1 . Since the packing 2 has the thin non-foamed layers 10 and 10 formed on the front and back surfaces of the foamed elastic body, the packing 2 compresses the soft foamed portion between the non-foamed layers 10 and 10 while sandwiching the flexible foamed portion in a sandwich shape. For this reason, the packing 2 is uniformly compressed as a whole, so that the peripheral portion is not turned over.

In this state, the seat plate 1 moves the peripheral portion 5 from the peak portion 4a to the valley portion 4b with respect to the surface of the corrugated plate 4.
, The corrugated sheet 4 is suitably held.

FIG. 2B shows a comparative example of the present invention. The corrugated plate mounting device of this comparative example includes a seat plate 1a,
It consists of a packing 2a and a screw body 3a. The seat plate 1a has only one bulging portion 7a in a region surrounded by the peripheral edge portion 5a (thus, it does not have what corresponds to the lower bulging portion 6 of the present invention). The screw body 3a includes a shank extending from the head portion 11a, forms a drill portion 12a at the tip of the shank, and constitutes a self-drilling screw formed with a tapping thread 13a connected to the drill portion 12a.
The shank portion connected to the tapping screw thread 13a has a stopper portion 14 having a diameter larger than the mountain diameter of the tapping screw thread 13a.
a is formed (therefore, the reverse screw thread 15 of the present invention)
Does not have an equivalent).

According to this comparative example, when a prepared hole is previously formed in the crest 4a of the corrugated sheet 4, the drill portion 12a and the tapping thread 13a pass through the prepared hole while rotating freely. When the inner diameter of the hole is smaller than the outer diameter of the stopper portion 14a, the stopper portion 14a does not pass through the prepared hole. When the prepared hole is not formed in the crest 4a of the corrugated plate 4, the drill portion 12a perforates the crest 4a of the corrugated plate 4 and the tapping thread 13a passes while cutting the perforated hole. The stopper 14a does not pass through the perforation. If the corrugated sheet 4 is made of a soft material such as vinyl chloride, it is not impossible to force the stopper portion 14a into the prepared hole or the perforation of the crest portion 4a by pressing the rotating tool. 4 may be cracked.

On the other hand, according to the present invention, as described above, since the stopper portion 14 is provided with the reverse screw thread 15, the stopper portion 14 easily passes while cutting the prepared hole or the perforated hole of the corrugated plate 4. can do.

In this regard, in the comparative example, FIG.
As shown in (B), if cutting means 19a such as serrations are provided in the stopper 14a, the stopper 1
4a can pass while cutting the prepared hole or the perforation of the crest 4a, but cannot perform the original stopper function. That is, when the distal end of the screw body 3a reaches the fixing member 17, the drill portion 12a pierces the fixing member 17, and the tapping screw thread 13a taps the piercing to form the tapping hole 18 while forming the fixing member 17. However, the cutting means 19a cuts the tapping hole 18 and enters while the stopper portion 14a faces the fixing member 17. As a result, there is a possibility that the peaks 4a of the corrugated sheet 4 may be excessively pressed to be deformed or cracked.

On the other hand, according to the present invention, as described above, since the stopper portion 14 is provided with the reverse screw thread 15, the stopper function can be suitably performed.

According to the comparative example, when the packing 2a is compressed between the seat plate 1a and the corrugated plate 4, the packing 2
a is press-fitted into the inside of the bulging portion 7a, but the peripheral portion of the packing 2a protruding therefrom is interposed between the peripheral portion 5a of the seat plate 1a and the corrugated plate 4, so that the peripheral portion 5a of the seat plate 1a.
A gap S is generated between the sheet and the corrugated sheet 4. For this reason, it is not possible to hold the corrugated plate 4 along substantially the entire circumference of the seat plate 1a. In addition, dust is clogged in the gap S and flows out in the rain, and the corrugated sheet 4
There is a problem that the surface of the paper is soiled, dead leaves and other foreign matter are caught in the gap S. Further, the seat plate 1 is formed by the gap S.
Since the peripheral edge portion a is raised, the seat plate 1a is rotated at the end of the screwing of the screw body 3a, not only displacing the seat plate 1a but not along the peak portion 4a of the corrugated plate 4, and the packing 2a.
Is compressed in a twisted state.

On the other hand, according to the present invention, the peripheral portion of the compressed packing 2 is received in the receiving chamber of the lower bulging portion 6, and the peripheral portion 5 of the seat plate 1 is moved along the surface of the corrugated plate 4. The corrugated plate 4 can be suitably held by abutting. Moreover,
As described above, the screw body 3 is stopped at the position where the peripheral edge portion 5 of the seat plate 1 is in contact with the corrugated plate 4 by the stopper portion 14 provided with the reverse screw thread 15, so that the packing 2 is uniformly compressed. Can be.

[0031]

According to the first aspect of the present invention, when the seat plate 1, the packing 2, and the screw body 3 are set in a combined state, the screw body 3 has a larger diameter than the tapping screw thread 13. Since the stopper portion 14 having the reverse thread 15 is formed, the center hole 9 of the packing 2 can be suitably elastically attached to the stopper portion 14. By the way, according to the prior art, the packing does not fit well, and the peripheral edge of the packing has a disadvantage of being turned up or unevenly compressed. Board 1
The packing 2 is attached to the inner surface of the seat plate 1 with the
Tightening face of the periphery, a central hole 9 of the packing 2 neck 16
Of the seat plate 1, the packing 2, and the screw body 3.
From the set state in which the corrugated plate 4 and the fixing member 17 are held while holding the seat plate 1 and rotating the screw body 3 with a rotary tool.
When screwing into the thread, the packing 2
Because it is set on the top, it is compressed evenly as a whole,
This has the effect of preventing the peripheral portion from being turned up. After the screw body 3 is screwed into the fixing member 17, the reverse screw thread 15 forms the stopper portion 14, so that the screw body 3 is suitably prevented from screwing by the stopper portion 14, and the corrugated sheet is provided. 4 is prevented from being deformed. In particular, since the stopper portion 14 has a larger thread diameter than the tapping screw thread 13 and forms the reverse screw thread 15, the stopper section 14 has a function of easily passing through a prepared hole or perforation of the corrugated plate 4 and a screw body. Both contradictory functions, that is, a stopper function for stopping 3 at a predetermined position, can be suitably performed. According to the second aspect of the present invention, the screw body 3 is screwed into the fixing member 17 so that the peripheral portion 5 of the seat plate 1 is brought into contact with the crest of the corrugated plate 4 and the seat plate 1 The packing 2 compressed between the corrugated plates 4 is pressed into the press-fitting chamber of the upper bulging portion 7 and the peripheral edge of the packing 2 protruding from the press-fitting chamber is received in the receiving chamber of the lower bulging portion 6. However, unlike the related art, the peripheral edge of the seat plate does not rise from the corrugated plate. For this reason, not only does not occur a problem that dust and the like are clogged in the gaps as in the related art, but also the corrugated plate 4 can be suitably held by the peripheral edge portion 5. Furthermore, according to the third aspect of the present invention, since the packing 2 is made of a foamed elastic body formed in an annular disk-shaped body and has a non-foamed layer 10 formed on both front and back surfaces, The packing 2 compressed between the plate 1 and the corrugated plate 4 is compressed while sandwiching a flexible foamed portion between the non-foamed layers 10 and 10 in a sandwich manner. For this reason, the packing 2 is uniformly compressed as a whole, so that the peripheral portion is not turned over.

[0032]

[0033]

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, wherein (A) is a side view, (B) is a front view, and (C) is a longitudinal sectional view.

FIGS. 2A and 2B show the operation of the corrugated sheet mounting device, wherein FIG. 2A is a longitudinal sectional view showing the operation of the embodiment of the present invention, and FIG. 2B is a longitudinal sectional view showing the operation of a comparative example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat plate 2 Packing 3 Screw body 4 Corrugated plate 5 Peripheral edge 6 Lower protruding part 7 Upper protruding part 8 Insertion hole 10 Non-foaming layer 11 Head 12 Drill part 13 Tapping thread 14 Stopper part 15 Reverse screw thread 17 Fixing member 18 tapping holes

Claims (3)

(57) [Claims] 1. A seat plate 1 having a substantially mountain-shaped cross section, which is attached to a peak portion 4a of a corrugated sheet 4 superimposed on a fixing member 17 via a packing 2, and the seat plate 1, the packing 2, and the corrugated sheet 4 are attached to each other. A corrugated plate mounting device comprising a headed screw body 3 that penetrates and is screwed to the fixing member 17 so as to compress the packing 2 between the seat plate 1 and the corrugated plate 4; A self-drilling screw having a tapping thread 13 is formed on a shank connected to a drill portion 12 provided at the tip, and the tapping thread 13 is screwed into a fixing member 17 so that the peripheral portion 5 of the seat plate 1 is crested on the corrugated plate 4. A stopper 14 is provided on the shank for preventing the screw body 3 from advancing while facing the fixing member 17 in a state of contact with the stopper.
The neck portion 16 is provided between the tapping portion 14 and the head portion 11, and the stopper portion 14 is formed to have a larger diameter than the tapping screw thread 13 and has a spiral direction opposite to the tapping screw thread 13. The screw body 3 is inserted into the through hole 8 of the seat plate 1 and the center hole 9 of the packing 2.
, The seat plate 1 is brought into contact with the head 11 of the screw body 3, and the center hole 9 of the packing 2 is inserted into the neck portion 16 with the peripheral edge of the packing 2 facing the inner surface of the seat plate 1. Outside
By caulking clothed bullet on the outer periphery of the hand thread screw thread 15 of the peripheral and the stopper portion 14, the wave plate mounting apparatus characterized by comprising setting the seat plate 1 and the packing 2 and screw member 3 in combined state. 2. The seat plate 1 has a peripheral portion 5 that abuts along a peak of the corrugated plate 4 and an upper portion so as to form a gap with respect to the corrugated plate 4 in a region surrounded by the peripheral portion 5. A lower bulged portion 6 bulged in the upper bulge, and an upper bulged portion 7 bulged further upward in a region surrounded by the lower bulged portion 6 and formed with a screw hole 8. 3 is screwed into the fixing member 17 and the peripheral portion 5 of the seat plate 1 is
A press-fit chamber is formed between the upper bulging portion 7 and the corrugated plate 4 for press-fitting the compressed gasket 2 in a state in which the lower bulging portion 6 and the corrugated plate are brought into contact with each other. 4. A receiving chamber for receiving a peripheral portion of the packing protruding from the press-fitting chamber between the press-fitting chambers.
A corrugated sheet mounting device according to item 1. 3. The packing according to claim 1, wherein the packing comprises a foamed elastic body formed in an annular disk-like body, and a non-foamed layer formed on both front and back surfaces. Corrugated plate mounting device.