JP2002195410A - Packing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing having little wasteful end material and easy to install on an object. SOLUTION: This strip-shaped packing 7 is provided with slit-like cuts 8 in the longitudinal direction, V-shaped notches 11 are provided on the inner periphery and the outer periphery formed by the slit-like cuts 8, and the tips of the V-shaped notches 11 are formed into a rectangular or rounded shape. Since the tips of the V-shaped notches 11 are formed into the rectangular or rounded shape, the concentration of stress at the tips of the V-shaped notches can be mitigated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing laid in a polygonal shape.

[0002]

2. Description of the Related Art Usually, packing used for the purpose of preventing ingress of sewage or the like is laid over the entire circumference of an object, and is formed into a round or square ring shape according to the shape of the object. I have. Conventionally, packing is formed by punching a sheet-like elastic material according to the shape of an object.

[0003]

When the object is large, there is a problem that wasteful scraps are generated on the inner peripheral side of the packing, so that the efficiency of material removal is low and the cost is high. As a method of reducing offcuts on the inner peripheral side, a slit-shaped notch is provided in the long side direction in a strip shape, a V-shaped notch is provided on the inner periphery and the outer periphery formed by the slit-shaped notch, and the packing used for spreading is: However, stress was concentrated on the tip of the V-shaped notch and the end of the slit-like notch, and the force to return to the strip shape was strong, and packing was laid on the object. There was a problem that it was difficult. In addition, since the width of the packing is sharply reduced in the V shape, there is a problem that the force at the time of expanding the packing is locally concentrated and easily cut. The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a packing that has a small amount of waste material and is easy to lay on an object.

[0004]

In order to achieve the above object, a first aspect of the present invention is a strip-like shape, in which a slit-like cut is provided in a long side direction, and a V-shape is formed in an inner periphery and an outer periphery formed by the slit-like cut. Since the notch is provided and the tip of the V-shaped notch is rectangular or R-shaped, concentration of stress on the tip of the V-shaped notch can be reduced.

[0005] In the second aspect, the cut in the short side direction is provided at the end of the slit-shaped cut, so that stress concentrated on the end of the slit-shaped cut can be reduced.

According to the third aspect, the circular cutout is provided at the end of the slit-shaped cut, so that there is no sharp cut portion.

A fourth aspect of the present invention is a packing in which a hollow portion formed on an elongated base material made of an elastic flat material is expanded to have a predetermined polygonal shape. Since the assisted V-shaped notch processing is performed and the tip of the V-shaped notch is rectangular or R-shaped, concentration of stress on the tip of the V-shaped notch can be reduced. The hollow portion may be a slit-like cut or punch.

[0008] A fifth aspect of the present invention is a packing formed by punching the inside of an elongated base material made of an elastic flat plate material and expanding the punched portion to have a predetermined shape. Since the processing part to be assisted is formed so as to be continuous with the punching part, the offcuts of the punching part and the offcuts of the processing part for assisting the expansion deformation can be integrated, and the processing of the offcuts is excellent.

According to a sixth aspect of the present invention, the processing for assisting the expanding deformation according to the fifth aspect is a V-shaped notch, and the tip of the V-shaped notch is rectangular or R-shaped. The concentration of stress at the tip can be reduced.

[0010] In the seventh aspect, since the unevenness is provided on both sides of the V-shaped notch, it is easy to align the both sides of the V-shaped notch when the packing is expanded.

In the eighth aspect, since the material is a foamed material having a single foam structure, sewage does not easily permeate into the packing itself, and when deformed, the bubbles are appropriately crushed and the stress can be dispersed.

According to the ninth aspect, since the adhesive is attached, it is easy to fix to the object.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As an example of the embodiment, a packing for preventing infiltration of sewage in a gap between a warm water flush toilet seat and a toilet will be described. In addition, an Example is an example and is not limited to use in a warm water flush toilet seat. As shown in FIG.
Is detachably fixed to the toilet bowl 1 by the detachable member 4, and the hot water flush toilet seat 3 is easy to clean the contact surface with the toilet bowl 1 by detaching, but sewage enters the gap between the detachable member 4 and the toilet bowl 1. In this case, cleaning cannot be performed unless the detachable member 4 is removed. Therefore, as shown in FIG. 6, the packing 7 is laid on the attaching / detaching member 4, but conventionally, as shown in FIG.
It was punched out in a shape that matched the shape of.

On the other hand, in the first embodiment of the present invention, as shown in FIG. 1, a base material 30 made of a sheet-like material is punched into a strip shape, and a slit-like cut 8 is formed in the long side direction.
The V-shaped notch 11 is provided on the inner periphery 9 and the outer periphery 10 formed by the slit-shaped notch 8 as a processing portion for assisting the expanding deformation of the packing 7. The tip is rectangular or rounded.
In addition, a circular notch 1 is provided at the end of the slit-shaped cut 8.
2 are provided. In this way, the stress applied when the packing 7 is expanded into a predetermined polygonal shape is dispersed.

As shown in FIG. 2, an adhesive 13 is adhered to one side of the packing 7 and attached along the positioning rib of the mounting member 4.

The material of the packing 7 has a single foam structure as shown in FIG. 3, and bubbles are gradually crushed in a wide range during deformation to disperse stress.

Also, as shown in FIG. 4 (a), irregularities 14 are formed on both sides of the V-shaped notch 11, and when the packing 7 is deformed, the irregularities 14 are fitted and the bent position of the V-shaped notch 11 is bent. Is easy to fix. Further, since the circular notch 12 is provided at the end of the slit 8, the stress applied to the end of the slit 8 when the packing is expanded can be dispersed. The same effect can be obtained by making a short cut 15 at the end of the slit 8 in the direction perpendicular to the slit 8 (the short side direction of the strip) as shown in FIG. 4B.

Next, another embodiment of the packing will be described. As shown in FIG. 7, a large number of packings 7 are arranged and formed on a sheet-like base material 30 made of an elastic flat plate. The difference from the first embodiment is that in the present embodiment, a punched portion 18 is used instead of the slit 8 which is a hollow portion inside the packing. The shape of the punched portion 18 may be a shape obtained by slightly expanding the packing 7 as shown in FIG.
As shown in FIG. 7B, the shape may be such that the slit is thickened. It is desirable that the punched portion be punched simultaneously with the outer shape processing of the packing 7. In addition, by providing the V-shaped notch 11 which is a processing part which assists the expanding deformation of the packing 7 continuously with the punching part 18, the punching part 18 and the V-shaped notch 11 are integrated,
Since the remnants are gathered, the remnants are excellent.
In this embodiment, additional processing similar to that of the above-described first embodiment can be performed to further facilitate use.

In this embodiment, the packing 7 is rectangular, but it is also possible to adjust the deformation angle of the V-shaped notch 11 to form another polygon. In addition, it is also possible to increase the number of deformed parts and use it for a circular object as a polygon close to a circle.

[0020]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect, since the stress at the tip of the V-shaped notch is dispersed, it is possible to prevent the packing from returning to the original strip shape and to easily lay the packing on the object. Also, the V-shaped notch tip becomes difficult to cut.

According to the second aspect, since the stress at the end of the slit-shaped cut is dispersed, the packing is prevented from returning to the original strip shape, and laying on the object is facilitated.

According to the third aspect, since the slit-shaped cut has no sharp cut, it is difficult for the packing to tear.

According to the fourth aspect, since the stress at the tip of the V-shaped notch is dispersed, it is possible to prevent the packing from returning to the original strip shape and to easily lay the packing on the object. Also, the V-shaped notch tip becomes difficult to cut.

According to the fifth aspect of the present invention, since the scraps of the punched portion are integrated, the processing of the scraps is excellent.

In the sixth aspect, since the stress at the tip of the V-shaped notch is dispersed, the packing is prevented from returning to the original strip shape, and laying on the object is facilitated. In addition, the V-shaped notch tip becomes difficult to cut.

According to the seventh aspect of the present invention, the positioning for fitting both sides of the V-shaped notch is facilitated, so that even if the tip of the V-shaped notch does not have only one point, displacement of the tip can be prevented.

In the eighth aspect, since the bubbles are appropriately crushed to disperse the stress, the packing does not easily return to the original strip shape, and it is easy to lay the packing on the object. Further, since the sewage hardly permeates into the packing itself, it is possible to prevent the packing itself from being a source of odor.

According to the ninth aspect, the adhesive is easily fixed to the object, the packing is prevented from returning to the original strip shape, and the installation on the object is facilitated. Since the stress is dispersed and the deformation of the packing is also dispersed, the adhesive is less likely to wrinkle.

[Brief description of the drawings]

FIG. 1 is an overall view of a packing showing an embodiment of the present invention.

FIG. 2 is a view showing a state in which packing is installed according to an embodiment of the present invention.

FIG. 3 is a schematic view of a packing deformation state by a single foam structure.

FIG. 4 is a detailed view showing a fitting state of the unevenness.

FIG. 5 is an overall view showing an attached state of a warm water flush toilet seat.

FIG. 6 is an overall view showing an arrangement state of a packing.

FIG. 7 is an overall view of a packing showing another embodiment of the present invention.

FIG. 8 is a plan view showing a conventional packing manufacturing method.

[Explanation of symbols]

 1: Toilet bowl 2: Tank 3: Hot water flush toilet seat 4: Detachable member 5: Nut 6: Bolt 7: Packing 8: Slit-shaped cut 9: Inner circumference 10: Outer circumference 11: V-shaped cutout 12: Circular cutout 13: Adhesive Material 14: Unevenness 15: Cut in short side direction 18: Punched part 30: Base material

Claims (9)

[Claims] 1. A strip-like shape, a slit-like notch is provided in a long side direction, a V-shaped notch is provided on an inner periphery and an outer periphery formed by the slit-like notch, and a tip of the V-shaped notch is rectangular or R A packing characterized by being shaped. 2. The packing according to claim 1, wherein a notch in a short side direction is provided at an end of the slit-shaped notch. 3. The packing according to claim 1, wherein a circular notch is provided at an end of the slit-shaped notch. 4. A packing in which a hollow portion formed on an elongated base material made of an elastic flat material is expanded to have a predetermined polygonal shape. A packing characterized in that a shape notch is formed and the tip of the V-shaped notch is rectangular or R-shaped. 5. A packing for punching the inside of an elongated base material made of an elastic flat plate material and expanding the punched portion into a predetermined shape. A packing characterized in that a part is formed continuously with a punched part. 6. The packing according to claim 5, wherein the processing for assisting the expanding deformation is a V-shaped notch, and a tip of the V-shaped notch is rectangular or R-shaped. 7. The packing according to claim 1, wherein irregularities are provided on both sides of the V-shaped notch. 8. The packing according to claim 1, wherein the material is a foamed material having a single foamed structure. 9. The packing according to claim 1, wherein an adhesive is attached.