JP4657447B2 - Seal packing for screw - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seal packing for screws (including screws, bolts, fasteners, nails, etc.) that can contribute to tightening of objects such as roofing materials, exterior materials, and interior materials around water. In particular, the present invention relates to a structure that can secure tightening even when external conditions such as impact and vibration are applied, or a seal packing for a screw that ensures water-stopping and weather resistance.
[0002]
[Prior art]
Conventionally, a packing for a screw used for a roofing material (hereinafter, described as a roofing material under the most severe internal / external condition among building materials, for example, a tile) is made of soft rubber, soft silicon, or A plate ring shape made of a resin-based member or the like, an inner grooved ring shape, or an umbrella shape is known.
[0003]
In this type of packing, the elastic deformation and / or plastic deformation of the packing due to the press-fitting of a screw is used, and for example, a waterproof effect is achieved by sealing the gap between the screw and the nail hole of the tile, In addition, it is intended to prevent the tile from being damaged by preventing the tile from contacting with the screw and to suppress the damping force from being tightened by the vibration of the tile (repetitive rocking due to strong winds, earthquakes, etc.).
[0004]
However, for ceramic roof tiles, the shape and accuracy of the nail holes vary widely, and the desired sealing performance and cushioning performance can be expected. Cracking and peeling frequently occur, and ensuring the desired performance is an issue. Recently, the anti-wind and rain and seismic performance of tiled roofs has been questioned, and the screw-stopping disaster prevention method that tightens the head side (flow direction end side) of the tile, which is considered a weak point, to the groundwork is becoming widespread in some areas. Therefore, a seal packing suitable for an exposed portion that is not concealed is desired.
[0005]
Prior documents regarding the packing are listed. Reference (1) is a tile fixing nail of utility model registration No. 3021469 and a tile fixing mechanism using the same, and the contents include a packing made of elastic plastics having weather resistance on the nail tip mainly of the nail. The tile fixing nail is inserted into the nail hole of the tile to make it stand up using the elasticity of the packing, and is driven in until the tip of the packing comes into contact with the wall. The main part of the nail is inserted into the wallet and secured, and the tiled nail is tightly inserted into the nail hole and elastically fixed using packing, making the tile work easier and strengthening the roof tile. It is to provide a tile fixing nail which has a strong fixing, waterproof and earthquake resistance. Document (2) is a presser bar stopper disclosed in Japanese Utility Model Publication No. Hei 6-73205, and a nail having a large outer diameter head formed on a short cylinder with a hook is attached to the outer surface of the short cylinder of the stopper inserted therethrough. Or, a soft synthetic resin sealing cylinder is fitted, or the short cylinder and nail heads are covered with rubber or a soft synthetic resin sealing cylinder. When pulling a nail, the short cylinder and the seal cylinder are bulged and deformed using the enlarged diameter of the head to secure the door pocket, the metal plate of the roof and the presser foot, and the seal cylinder is made of metal. It is designed to be completely waterproof by being in close contact with the plate.
[0006]
[Problems to be solved by the invention]
The document (1) is an elastic deformation of the packing, and this elastic deformation is performed in the direction of tightening of the nail main body. However, there is not necessarily a guarantee that the elastic deformation will occur as expected. On the other hand, there is a possibility that a dumpling will be formed in the middle of the nail hole, and it is considered that reliability is lacking. Further, the roof tile is easily distorted by firing, and the shape of the hole may be deformed due to the distortion. Therefore, the familiarity between the hole and the nail main body is deteriorated, the elastic deformation of the packing in the hole is not smoothly performed, and there are cases where the waterproofing and earthquake resistance effects cannot be achieved, which is a problem.
[0007]
According to the above document (2), a short cylinder and a seal cylinder with a hook are attached to the nail body, and the short cylinder and the seal cylinder are expanded at the head by using the tension of the nail, and the metal plate and the presser bar are locked. The configuration and usage are completely different from the present invention.
[0008]
In References (1) and (2), since the ratio of the packing or seal cylinder occupying the nail main body or the nail body is large, for example, it is bulky and troublesome at the time of accommodation, and it is troublesome to carry. There are issues such as. In addition, since the packing or the seal cylinder is large, care must be taken from the beginning to the end of handling and nailing, which causes problems such as troublesomeness and somewhat inferior workability. Further, with the tile fixing nail, it is possible that the increase in the cost is not foolish and hesitates to use.
[0009]
And the conventional packing for roof tile tightening screws is mainly used for tightening on the butt side (the roof tile is overlaid and not exposed), for example, for the purpose of preventing damage to the roof tiles (stopping the relaxation function). The sealing and cushioning properties are not considered.
[0010]
[Means for Solving the Problems]
The invention of claim 1 uses the elastic repulsion force of the seal packing (stress that tries to return to the original against the external pressure to be suppressed), and the seal packing housing has a screw head back surface (one surface), Immediately in close contact with the surface (other side) of the tightened material (tile), exerting a sealing effect between the screw and the tile, improving water-stopping properties (wet to reach the roof through the screw) Or prevention of rain leakage) or absorbing impacts on the tiles by using cushioning properties, while maintaining the tightening force, preventing damage to the tiles, and thus exhibiting wind and rain resistance, earthquake resistance effects, and the like. In addition, the structure is simplified, mass production is intended, the construction is simplified, and the provision at low cost is intended.
[0011]
Claim 1 is a seal packing for a building material tightening screw made of an elastic member ,
This sealing packing comprises a cylindrical body portion, at opposite ends of the tubular body portion of this, constituted by a respective flange body provided respectively, the respective flange body, a head back surface of the screw, the surface of the tightening product In the process of screwing and pressing the screw, each casing is pressed by the back surface and the front surface of the head, and the middle of the cylindrical body is bulged outwardly. A seal packing for a building material fastening screw, wherein the seal packing is deformed so as to overlap between pressed housings.
[0012]
The invention of claim 2 is intended to securely fix the tightened object by utilizing the elastic deformation of the seal packing, or to exhibit the effect of claim 1.
[0013]
According to a second aspect of the present invention, there is provided a seal packing for a screw having a structure in which the tightening material is a roof tile. The invention of claim 3 is intended to securely fix the tightened object by utilizing elastic deformation of the seal packing, or to exhibit the effect of claim 1.
[0014]
According to a third aspect of the present invention, there is provided a seal packing for a screw having a structure in which the tightening material is a shelf, a part, or a plate .
[0015]
The invention of claim 4 uses the elastic deformation of the seal packing to ensure a waterproof effect, and uses the characteristics of the material to prevent deterioration due to ultraviolet rays, temperature differences, acid rain, etc. It is intended to secure to the above, or to exert the effect of claim 1.
[0016]
According to a fourth aspect of the present invention, there is provided a seal packing for a screw in which the seal packing is made of a rubber or resin elastically deformable member.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the invention will be described.
[0018]
A seal packing for a building material screw (described with a screw) according to the present invention is composed of a cylindrical body and casings provided at both ends of the cylindrical body, and this seal packing is, for example, for tightening roof tiles. When used for a screw, it is provided so that one surface of the seal packing housing is in contact with the back surface of the head of the screw, and the cylindrical body portion is put on the outer periphery of the screw shaft. The screws with seal packing are inserted into the nail holes of the roof tile and then screwed in sequentially using a tool. In this screwing process, the two casings are sequentially pressed by the back surface of the screw head and the outer surface of the nail hole (surface of the nail seat), and the elastic deformation of the seal packing starts.
[0019]
Specifically, the two barrels are pressed by the back of the head side and the surface of the nail seat by screwing in the screw, so that the cylindrical body portion sequentially bulges outward, and one outer surface of the rod Will become familiar with the surface of the nail base and will be screwed in to the bottom dead center to complete the press-fitting.
[0020]
In this case, the cylindrical body portion continues to bulge outward and is pressed and deformed until it comes into contact with the side surfaces (anti-outside surface) of both housings, and is substantially flattened. Are substantially flush with each other, forming a form in which three or four conventional plate ring packings are overlapped.
[0021]
In addition, there is a certain space from the screwing and press-fitting process to the completion of press-fitting, and even in the press-fitting process, there is always a constant space between the cylindrical barrel inner diameter and the screw shaft outer diameter, and the elastic repulsion force ( The stress to be restored against the external pressure is preserved and the cushioning property is maintained.
[0022]
With such a configuration, the seal packing has a practical advantage that is always in close contact with the nail seat surface of the roof tile and the back surface of the screw head, exhibits a water-stopping effect and a cushioning effect, and helps prevent rain leakage and maintain tightening force. The seal packing is concealed by the screw head and / or uses physical properties, so that deterioration due to, for example, ultraviolet rays, temperature differences, acid rain, etc. can be avoided. In addition, by adopting a structure in which ribs such as rings and protrusions are provided on the housing, the frictional resistance due to surface contact between the respective back surfaces of the screw head and the surface of the roof of the roof tile and both surfaces of the seal packing housing. The degree of adhesion can be strengthened while gradually amplifying the ring-shaped contact. Further, the ring-shaped rib can serve as a guide to be inserted into the nail hole and can serve as a sealing plug.
[0023]
In addition, screwing on the roof side of the roof tile (the effect at the center of the exposed surface is more prominent) contributes to standardization, efficiency, and simplification of tightening work, and facilitates maintenance, repair, It is possible to check and adjust the screwed-in state of the screw.
[0024]
Furthermore, in the present invention, the elastic properties (rebound performance, cushioning properties) of the seal packing are used to exert an effect on furniture furniture, audio equipment, office machines, etc. in addition to tightening the interior and exterior materials, and tightening force There are also benefits in maintenance, vibration damping, shock absorption, or seismic isolation. Although not described in detail, the use of nails in the screw may have some problems with tightening torque, but it is used in fields where it is used, where it is used, and where cushioning and airtightness are not an issue. Considered.
[0025]
【Example】
An embodiment of the present invention will be described below. Reference numeral 1 denotes a seal packing composed of an elastic member (elastically deformable member) such as rubber resin. The seal packing 1 includes a cylindrical body 100 (tubular body) and a casing 101 provided on the cylindrical body 100. , 102. The casings 101 and 102 come into contact with the back surface 201 of the head 200 of the screw 2 and the surface 300 of the tightened object (tile 3) through screwing or press-fitting of the screw 2, and are in close contact with both surfaces by elastic deformation. To do. In addition, the cylindrical body 100 bulges outward and elastically deforms when pressed by the back surface 201 of the head 200 of the screw 2 and the surface 300 of the roof tile 3 against the housings 101 and 102. For example, the cylindrical body 100 bulges outward and is pressed and deformed until it comes into contact with the inner side surfaces (anti-outside contact surfaces) of the two casings 101 and 102, and the bulging outer circumference is that of the two casings 101 and 102. It is almost flush with the outer periphery. An embodiment with inward bulging is also possible. Although inward bulging may be somewhat reduced in cushioning properties, it was considered to be used in fields of use, places of use, and places where there is no problem with airtightness.
[0026]
In the figure, 202 is a nail hole, 203 is an inner edge, 301 is a nail seat, and 301a is a nail seat surface.
[0027]
In addition, when manufacturing this seal packing 1, after continuously forming with an extrusion molding machine, the space | interval between the housings 101 and 102 provided continuously is cut | disconnected. At the time of this cutting, the ring-shaped ribs are left as they are in the casings 101 and 102 to reduce the frictional resistance with the back surface 201 of the head 200 and abut against the outer edge portion of the nail hole 202 to serve as a guide. Is sealed to make the sealing property stronger.
[0028]
FIG. 6 shows an example of another seal packing 1, (A) shows an example in which the cylindrical body 100 is a drum shape, and (B) shows both of the casings 101 and 102 (one is also possible). ) Is a deformed shape, (C) is an example in which the ribs 103 and 104 are formed on both of the casings 101 and 102 (one is possible), and (D) is a case where the cylindrical body 100 is a true cylinder. (E) shows the example which made the cylindrical trunk | drum 100 the rhombus, respectively. Moreover, the hole of the cylindrical trunk | drum 100 can also be used as the hole for a straight hole, an outward projecting hole, and a sleeve insertion.
[0029]
In the figure, H represents a space formed between the inner diameter of the cylindrical body 100 and the outer diameter of the screw biaxial.
[0030]
【The invention's effect】
The invention of claim 1 is a seal packing for a building material tightening screw constituted by an elastic member ,
Seal packing, a cylindrical body portion, at opposite ends of the cylindrical body portion, constituted by a respective flange body provided respectively, each collar body includes a head rear surface of the screw, in contact with the surface of the clamping object, screw In the screwing and press-in process, the housings are pressed by the back and front surfaces of the head, the middle of the cylindrical body bulges outward, and the tubular body overlaps between the pressed housings. It is a seal packing for a building material tightening screw characterized by being deformed by pressing as described above . Therefore, the seal packing casing makes direct contact with the back surface of the screw head and the surface of the tightening object by utilizing the elastic deformation of the seal packing, thereby providing a sealing effect, improving the water-stopping property, or cylindrical. It is intended to exhibit seismic resistance, wind resistance effect, maintenance of tightening force, and prevention of damage to the tightening body while absorbing shock to the screw by utilizing the cushioning property of the trunk. In addition, the structure is simple, suitable for mass production, and has features such as cost reduction and easy use.
[0031]
The invention of claim 2 is a seal packing for a screw having a structure in which the tightening material is a roof tile. Therefore, the elastic deformation of the seal packing can be used to securely fix the tightened object, or the effects of claim 1 can be exhibited.
[0032]
The invention of claim 3 is a seal packing for a screw having a structure in which the tightened article is a shelf, a part, or a plate . Therefore, the elastic deformation of the seal packing can be used to securely fix the tightened object, or the effects of claim 1 can be exhibited.
[0033]
According to a fourth aspect of the present invention, there is provided a seal packing for a screw, wherein the seal packing is made of an elastically deformable member made of rubber or resin . Therefore, the elastic deformation of the seal packing is used to ensure the waterproof effect, and the characteristics of the material are used to prevent deterioration due to ultraviolet rays, temperature differences, acid rain, etc. Or there exists the characteristics of being able to exhibit the effect of Claim 1.
[Brief description of the drawings]
FIG. 1 is a perspective view of a seal packing.
FIG. 2 is a side view for explaining the relationship between seal packing and screws.
FIG. 3 is an enlarged cross-sectional view showing a state in which the roof tile is used.
4 is an enlarged cross-sectional view of a main part of FIG.
5 is an enlarged cross-sectional view illustrating the relationship between the back surface of the screw head of FIG. 3, the nail seat surface of the roof tile, and the screw. FIG.
FIGS. 6A and 6B are side views illustrating another example of seal packing and a casing, where FIG. 6A is an example of a drum-shaped cylindrical body, and FIG. 6B is an example of a deformed shape of the casing. (C) shows an example in which ribs are formed on the casing, (d) shows an example of a true cylindrical body, and (e) shows an example of a rhombus cylindrical body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seal packing 100 Cylindrical trunk | drum 101 Housing 102 Housing 103 Rib 104 Rib 2 Screw 200 Head 201 Back surface 202 Nail hole 203 Inner diameter edge 3 Tile 300 Surface 301 Nail seat 301a Nail seat surface H Space

Claims (4)

A seal packing for a building material tightening screw made of an elastic member ,
This sealing packing comprises a cylindrical body portion, at opposite ends of the tubular body portion of this, constituted by a respective flange body provided respectively,
Each casing comes into contact with the back surface of the head of the screw and the surface of the tightened object, and in the process of screwing in the screw, each casing is pressed with the back surface of the head and the surface, A seal packing for a building material tightening screw , wherein the middle of the portion bulges outward and the cylindrical body portion is pressed and deformed so as to overlap between pressed housings.   The screw seal packing according to claim 1, wherein the tightened article is a roof tile. The seal packing for a screw according to claim 1, wherein the tightened article is a shelf, a component, or a plate . The screw seal packing according to claim 1, wherein the seal packing is made of an elastically deformable member made of rubber or resin .

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